WO2020088557A1 - Flow channel structure for composite filter cartridge assembly and water purification system - Google Patents

Flow channel structure for composite filter cartridge assembly and water purification system Download PDF

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Publication number
WO2020088557A1
WO2020088557A1 PCT/CN2019/114555 CN2019114555W WO2020088557A1 WO 2020088557 A1 WO2020088557 A1 WO 2020088557A1 CN 2019114555 W CN2019114555 W CN 2019114555W WO 2020088557 A1 WO2020088557 A1 WO 2020088557A1
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WIPO (PCT)
Prior art keywords
filter
flow channel
channel
inlet
water
Prior art date
Application number
PCT/CN2019/114555
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French (fr)
Chinese (zh)
Inventor
李杨敏
桂鹏
郑跃东
高宏
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201811291164.9A external-priority patent/CN111115878A/en
Priority claimed from CN201821786338.4U external-priority patent/CN209307046U/en
Priority claimed from CN201811289134.4A external-priority patent/CN111115868A/en
Priority claimed from CN201821790153.0U external-priority patent/CN209367960U/en
Priority claimed from CN201811291171.9A external-priority patent/CN111115879A/en
Priority claimed from CN201821786755.9U external-priority patent/CN209481320U/en
Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Publication of WO2020088557A1 publication Critical patent/WO2020088557A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially

Definitions

  • the present application belongs to the technical field of water purification, in particular to a flow channel structure and water purification system of a composite filter element assembly.
  • the tap water transported from the city water plant to each user usually contains a certain amount of salt ions, metal substances, chlorides, microorganisms, sediment and other substances.
  • a water purifier In order to improve the quality of drinking water, more and more families choose to install a water purifier on the tap water outlet pipe.
  • the water purifier has a multi-function filter element to remove different types of harmful substances in the tap water.
  • the existing water purifier filter element is generally 3 to 4 grades, and some manufacturers of water purifier filter element are double core.
  • a variety of filter element assemblies are usually arranged in the water purifier, and the inlet and outlet ports of each filter element assembly are connected in series in sequence.
  • To achieve high-quality drinking water it is often necessary to connect three-stage and four-stage filter core components in series. Both the outlet and inlet flow channels between different filter core components require external pipes to connect, so that the internal pipeline system of the water purifier is complicated and clean.
  • the whole water machine occupies a large space, which is inconvenient to install and replace the filter element. Water leakage is likely to occur at the connection of external pipes, and the overall purifiable water volume has a relatively large limit.
  • each pipe of the water purification system composed of the filter element of the water purifier is complicated, and the filter units at all levels are connected by external pipes with poor reliability and low control accuracy.
  • reverse osmosis filter components when used in multi-stage filter elements, they often discharge concentrated salinity wastewater with higher salinity, which makes the wastewater valve on the wastewater pipeline clogged during long-term use, resulting in a reliable water purification system Poor performance, low service life of reverse osmosis membrane.
  • This application aims to solve one of the technical problems in the related art at least to a certain extent.
  • an object of the present application is to propose a flow channel structure of a composite filter element assembly.
  • the flow channel structure of the composite filter element assembly is compactly arranged, takes up little space, and has multiple filtering effects.
  • Another object of the present application is to propose a water purification system with a flow channel structure of the above composite filter element assembly.
  • the design of the water purification system is simplified, stable and reliable, and has a long service life.
  • the flow channel structure of a composite filter element assembly includes: a first filter unit and a second filter unit spaced apart in the axial direction, the first filter unit having a first inlet and a second inlet A third inlet and outlet, the second filter unit has a fourth inlet and outlet, a transition flow channel is provided between the first filter unit and the second filter unit, wherein the first filter unit is radially A first uniform flow channel, a first filter channel, a second uniform flow channel, a third uniform flow channel, a second filter channel, and a fourth uniform flow channel are provided in this order from outside to inside A first filter element is provided in the channel, and a second filter element is provided in the second filter channel.
  • the first uniform flow channel and the second uniform flow channel communicate with each other through the first filter channel.
  • the third uniformly distributed flow channel and the fourth uniformly distributed flow channel communicate with each other through the second filter channel, the second uniformly distributed flow channel is isolated from the third uniformly distributed flow channel, and does not circulate, the
  • the first uniform flow channel is connected to the first inlet and outlet, and the second uniform flow channel is connected to the first Inlet and outlet, one of the third uniformly distributed flow channel and the fourth uniformly distributed flow channel is connected to the third inlet and outlet, the other of the third uniformly distributed flow channel and the fourth uniformly distributed flow channel
  • the transition flow channel is connected; a third filter element is provided in the second filter unit.
  • the flow channel structure of the composite filter element assembly of the embodiment of the present application four uniformly distributed flow channels and two channels are sequentially arranged in the radial direction in the first filter unit, and a group of filter elements are respectively arranged in the two channels so that the first
  • the overall structure of the filter unit is compact, and two filter functions are integrated.
  • the second uniformly distributed flow channel and the third uniformly distributed flow channel are isolated from each other and do not circulate, so that the first filter element and the second filter element respectively form front and rear filters, forming two different filter systems.
  • the first filter unit and the second filter unit are spaced apart in the axial direction and connected by a transition flow channel.
  • the two filter units are compactly matched and save some external connecting pipes.
  • a third filter element is provided in the second filter unit, which can further increase the overall filtering function of the composite filter element assembly, and improve the quality of the final effluent.
  • the second filter unit has a fifth inlet and outlet
  • the second filter unit is provided with a filtered water circulation cavity and a waste water circulation cavity
  • the filtered water circulation cavity and the waste water circulation cavity are provided between In the filtration membrane, the filtered water circulation cavity communicates with the transition flow channel, and the waste water circulation cavity communicates with the fifth inlet and outlet.
  • a fifth uniform flow channel and a third filter channel are sequentially arranged in the second filter unit from outside to inside in the radial direction, and the third filter channel surrounds the filtered water circulation cavity and the wastewater A flow cavity is provided, the third filter element is provided in the third filter channel, the waste water flow cavity and the fifth uniform flow channel communicate with each other through the third filter channel, and the fifth uniform flow
  • the road connects to the fourth import and export.
  • the fourth uniform flow channel is cylindrical, the first uniform flow channel, the first filter channel, the second uniform flow channel, and the third uniform flow channel,
  • the second filter channel is a ring arranged in layers.
  • a first inner end cover is provided in the first filter unit, and the first inner end cover is sealed in the second filter channel and the fourth uniformly distributed flow channel toward the second filter On the end surface of the unit, the transition flow channel is connected to the third uniform flow channel.
  • a first outer end cap and a waterway spacer are provided in the first filter unit, and the first outer end cap is sealed in the direction of the first filter channel and the second uniform flow channel
  • the water channel spacer is connected to the first outer end cover and is spaced between the second uniform distribution channel and the third uniform distribution channel.
  • a second inner end cap and a second outer end cap are provided in the first filter unit, and the second outer end cap is sealed on an end surface of the first filter channel away from the second filter unit , The second inner end cover is sealed on an end surface of the second filter channel away from the second filter unit.
  • the method further includes: a third end cover and a fourth end cover, the third end cover is sealed at an end of the third filtration channel and the waste water circulation cavity facing the first filtration unit, the The fourth end cap is sealed at an end of the third filter channel and the filtered water circulation cavity away from the first filter unit.
  • a center tube and a plurality of waste water headers are provided in the second filter unit, and a plurality of the waste water headers are disposed around the center tube, the filter membrane is a reverse osmosis membrane bag, and the reverse
  • the osmotic membrane bag has a first part and a second part, each of the wastewater header and the central pipe are separated by at least one first part of the reverse osmosis membrane bag, a plurality of the reverse osmosis membrane bag
  • the second part forms a multi-layer membrane module surrounding the central tube group, and a plurality of reverse osmosis membrane bag roll-formed cylinders constitute the third filter element, and the central tube communicates with the
  • the transition flow channel is provided with a filtered water inlet hole on the pipe wall, the waste water header is connected to the fifth inlet and outlet and a waste water inlet hole is provided on the pipe wall.
  • a spacer bracket is provided in the first filter unit, and the spacer bracket is provided in the second uniform flow channel.
  • a water purification system includes: a composite filter element assembly, and a first filter unit and a second filter unit are axially spaced apart in a housing of the composite filter element assembly, the first filter unit having a first The second inlet and outlet, the second inlet and the third inlet, the second filter unit has a fourth inlet and outlet, and a transition flow channel is provided between the first filter unit and the second filter unit, wherein A first uniform flow channel, a first filter channel, a second uniform flow channel, a third uniform flow channel, a second filter channel and a fourth uniform flow channel are arranged in this order in the first filtering unit A first filter element is provided in the filter channel, and a second filter element is provided in the second filter channel, and the first uniform flow channel and the second uniform flow channel communicate through the first filter channel, The third uniformly distributed flow channel and the fourth uniformly distributed flow channel communicate with each other through the second filtering channel, and the second uniformly distributed flow channel is isolated from the third uniformly distributed flow channel
  • the first uniform flow channel is
  • the first filter unit and the second filter unit are spaced apart in the axial direction and connected by the transition flow channel, the two filter units are compactly matched, and the third filter and the second filter are saved
  • the external connecting pipes connected between the pieces save the number of external pipes and increase the ease of layout and reliability of the overall water purification system. All pipelines are relatively centralized and easy to arrange.
  • the first filtering unit is provided with four uniform flow channels and two channels in sequence, and a filter element is arranged in each of the two channels, so that the overall structure of the first filtering unit is compact and two filtering functions are integrated.
  • the second uniformly distributed flow channel and the third uniformly distributed flow channel are isolated from each other and do not circulate, so that the first filter element and the second filter element respectively form front and rear filters, forming two different filter systems.
  • a third filter element is provided in the second filter unit, which can further increase the overall filtering function of the water purification system and improve the quality of the final water output.
  • the composite filter element assembly is arranged in such a way that the filter elements that can be filtered under normal pressure or low pressure are concentrated in the first filter unit, and the filter elements that require high-pressure filtration are concentrated in the second filter unit, and the two are separately set.
  • the connection of each part of the unit can be assembled according to the requirements of normal pressure to avoid excessive assembly cost, and the connection of each part of the second filter unit is assembled according to the requirements of high pressure.
  • the water purification system further includes: a second switching control valve connected in series to the first switching tube.
  • the water purification system further includes a high-pressure switch connected in series on the pure water pipe, and the high-pressure switch is electrically connected to the second conversion control valve.
  • the water purification system further includes: a first one-way valve connected in series on the pure water pipe.
  • the second filter unit has a fifth inlet and outlet
  • the second filter unit is provided with a filtered water circulation cavity and a waste water circulation cavity
  • the filtered water circulation cavity and the waste water circulation cavity are provided between In the filtration membrane, the filtered water circulation cavity communicates with the transition flow channel, and the waste water circulation cavity communicates with the fifth inlet and outlet.
  • the water purification system further includes: a waste water pipe connected to the fifth inlet and outlet of the composite filter element assembly; a waste water valve connected in series to the waste water pipe.
  • the water purification system further includes: a first switching control valve, the first switching control valve is connected in series to the waste water pipe, the first switching control valve is located between the waste water valve and the fifth inlet Between outlets; a second conversion tube, the second conversion tube is connected to the first conversion tube and the waste water pipe, the connection point of the second conversion tube and the waste water pipe is located in the waste water valve and the Between the first switching control valve, the connection point of the second switching tube and the first switching tube is located between the booster pump and the second inlet and outlet.
  • a first switching control valve the first switching control valve is connected in series to the waste water pipe, the first switching control valve is located between the waste water valve and the fifth inlet Between outlets; a second conversion tube, the second conversion tube is connected to the first conversion tube and the waste water pipe, the connection point of the second conversion tube and the waste water pipe is located in the waste water valve and the Between the first switching control valve, the connection point of the second switching tube and the first switching tube is located between the booster pump and the second inlet and outlet.
  • the water purification system further includes: a second switching control valve connected in series to the first switching tube, and the second switching control valve is located between the second switching tube and the second A connection point between a conversion tube and the second inlet and outlet.
  • the water purification system further includes a high-pressure switch connected in series on the pure water pipe, and the high-pressure switch is electrically connected to the booster pump.
  • the booster pump is electrically connected to the first switching control valve, and the booster pump and the first switching control valve are both open and closed.
  • the water purification system further includes: a first one-way valve connected in series on the pure water pipe.
  • the water purification system further includes: a second one-way valve connected in series on the waste water pipe, the second one-way valve located on the connection point of the second conversion pipe on the waste water pipe and the Between the waste valves.
  • the waste water valve is an adjustable waste water valve, and the waste water valve is cumulative flushing or standby flushing.
  • the first filter element is a roll made of non-woven fabric, polypropylene layer, and carbon fiber
  • the second filter element is a carbon tube
  • the first filter element is coated on the outer side of the second filter element, and the first filter element and the second filter element are separated by a waterway spacer, the first filter element
  • the first uniformly distributed flow channel is formed on the outer peripheral side, and the second uniformly distributed flow channel is defined between the first filter element and the waterway spacer, and the second filter element and the waterway spacer
  • the third uniformly distributed flow channel is defined between them, and the inner cavity surrounded by the second filter element constitutes the fourth uniformly distributed flow channel.
  • the second filtration unit includes: a reverse osmosis membrane element
  • the reverse osmosis membrane element includes: a central tube group and a plurality of reverse osmosis membrane sheet bags
  • the central tube group includes a central tube and a plurality of spaced apart
  • a waste water pipe is provided, and a plurality of the waste water pipes are arranged around the central pipe.
  • the wall of the central pipe is provided with a filtered water inlet hole, and the waste water pipe is provided with a waste water inlet hole;
  • the permeable membrane bag has a first part located inside the central tube group and a second part located outside the central tube group, each of the waste water tube and the central tube is separated by at least one of the reverse osmosis membrane bag The first part is spaced apart, and the second parts of the plurality of reverse osmosis membrane sheet bags form a multi-layer membrane module surrounding the central tube group; wherein, the second inlet and outlet enter the second
  • the water of the filtering unit is filtered by the reverse osmosis membrane bag and flows to the filtered water inlet hole.
  • the lumen of the center tube constitutes the filtered water circulation cavity, and the lumen of the wastewater pipe constitutes the wastewater circulation cavity ,
  • the reverse osmosis membrane bag constitutes the filtration membrane
  • FIG. 1 is a schematic diagram of the overall structure of a composite filter element assembly according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the overall structure of the flow channel structure of a composite filter element assembly according to an embodiment of the present application.
  • FIG. 3 is a schematic top view of FIG. 2.
  • FIG. 4 is a schematic diagram of the bottom view of FIG. 2.
  • FIG. 5 is a schematic structural side view of a third end cap according to an embodiment of the present application.
  • FIG. 6 is a top view of a third end cap according to an embodiment of the application.
  • FIG. 7 is a bottom view of a third end cap according to an embodiment of this application.
  • FIG 8 is a bottom view of a fourth end cap according to an embodiment of the application.
  • FIG. 9 is a top view of a fourth end cap according to an embodiment of the application.
  • FIG. 10 is a schematic diagram of a three-dimensional structure of a center pipe and a waste water header according to an embodiment of the present application.
  • FIG. 11 is a plan view of a reverse osmosis filter membrane bag, a central tube, and a waste water collecting pipe according to an embodiment of the present application.
  • FIG. 12 is a top view of a spiral wound reverse osmosis membrane element in an embodiment of the present application.
  • FIG. 13 is a schematic diagram of the overall structure of the water purification system of the first embodiment of the present application.
  • FIG. 14 is an overall schematic diagram of the water purification system of the second embodiment of the present application when normally filtering and returning water to make water.
  • FIG. 15 is an overall schematic diagram of the second embodiment of the present application when flushing a waste water valve with a water purification system.
  • 16 is a schematic diagram of the overall structure of a composite filter element assembly in a water purification system according to two embodiments of this application.
  • Fig. 17 is a top view of Fig. 16.
  • Fig. 18 is a bottom view of Fig. 16.
  • the first filter unit 100 The first filter unit 100;
  • the first filter 10 the first uniform flow channel 11; the second uniform flow channel 12; the first filter channel 13;
  • Second filter 20 third uniform flow channel 21; fourth uniform flow channel 22; second filter channel 23; transition flow channel 24;
  • the third import and export 201 The third import and export 201;
  • the second filter unit 200 The second filter unit 200;
  • the third filter 30 The third filter 30; the fifth uniform flow channel 31; the third filter channel 32; the central tube 33; the waste water header 34; the filter membrane 35;
  • Third end cap 47 second cannula 471; third cannula 472; first positioning protrusion 473; first assembly positioning structure 474;
  • Housing 300 housing upper cover 310; housing lower cover 320;
  • Pure water pipe 500 high pressure switch 510; first check valve 520;
  • Waste water pipe 600 waste water valve 610; first switching control valve 620; second check valve 630;
  • a flow channel structure of a composite filter element assembly 1000 includes: a first filter unit 100 and a second filter unit 200 spaced apart in the axial direction.
  • the first filter unit 100 has a first inlet 101, a second inlet 102, and a third inlet 201, the second filter unit 200 has a fourth inlet 302, and a first filter unit 100 and a second filter unit 200 are provided between There is a transition channel 24.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction and are connected by the transition flow channel 24.
  • the first filter unit 100 and the second filter unit 200 are compactly matched to form a whole and save part External connection pipes.
  • the first filtering unit 100 is provided with a first uniform flow channel 11, a first filtering channel 13, a second uniform flow channel 12, a third uniform flow channel 21, a second The filter channel 23 and the fourth uniformly distributed flow channel 22.
  • a first filter element 10 is provided in the first filter channel 13, and a second filter element 20 is provided in the second filter channel 23.
  • the two purified water paths of the first filter element 10 and the second filter element 20 can increase the filtration performance of the first filter unit 100 and meet different requirements of water quality water discharge effect.
  • the first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13, and the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with the second filter channel 23.
  • one of the uniform flow channels on both sides of the first filter channel 13 can evenly distribute the liquid before the first filter 10 is filtered, and the other can evenly distribute the liquid after the first filter 10 is filtered, the first filter 10 Both sides are evenly pressed.
  • one of the uniform flow channels on both sides of the second filter channel 23 can evenly distribute the liquid before the second filter 20 is filtered, and the other can evenly distribute the liquid after the second filter 20 is filtered, and both sides of the second filter 20 Even pressure.
  • the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21 are isolated and not in circulation.
  • the two evenly distributed flow channels are isolated, so that the two independent purified water channels in the first filter unit 100 do not interfere with each other during operation.
  • the effluent of one purified water channel can be directly used as the influent of another purified water channel; the effluent of one purified water channel can also be filtered by other external filtering components and then used as the inlet water of another purified water channel.
  • the first uniform flow channel 11 is connected to the first inlet 101, and the second uniform flow channel 12 is connected to the second inlet 102.
  • the second inlet 102 is used as the liquid outlet of the first filter 10; if the first inlet 101 is used as the liquid outlet of the first filter 10
  • the second inlet 102 serves as the liquid inlet of the first filter 10.
  • One of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the third inlet and outlet 201, and the other of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the transition flow channel 24.
  • the fourth uniform distribution channel 22 is connected to the third inlet 201; when the third uniform distribution channel 21 is connected to the third inlet 201, the first The four uniformly distributed flow channels 22 are connected to the transition flow channels 24.
  • the second filter unit 200 is provided with a third filter 30.
  • the third filter element 30 can further increase the overall filtering function of the composite filter element assembly 1000 to improve the quality of the water.
  • first filter unit 100 four uniformly distributed flow channels and two filter channels are sequentially arranged in the first filter unit 100 in the radial direction to form two mutually independent purified water channels, and filter elements are respectively arranged in the two filter channels.
  • the overall structure of the first filter unit 100 is made compact, and two water quality filtration links are integrated in the first filter unit 100, and a set of filter elements in the second filter unit 200 makes the composite filter element assembly of the present application
  • the whole 1000 has three water quality filtration links.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and one of the evenly distributed flow channels on both sides of the second filter element 20 is connected to the third filter element 30 through the transition flow channel 24.
  • the two filter units (100, 200) With a compact fit, it saves the external connection pipes that the filtered water of the third filter 30 needs to lay when flowing to the second filter 20; or saves the filtered water of the second filter 20 when flowing to the third filter
  • the external connection pipes required for the filtering of the piece 30 It is advantageous for the composite filter element assembly 1000 to reduce the overall size, and for simplifying the arrangement of external piping.
  • the first filter channel 13 From the layout position of the first uniform flow channel 11, the first filter channel 13, the second uniform distribution channel 12, the third uniform distribution channel 21, the second filter channel 23, and the fourth uniform distribution channel 22,
  • the passing path is short and the flow volume is large.
  • it has a flushing effect on the impurities on the surface of the filter when passing radially, and the water flow is more likely to wash away the impurities and then pass through the filter.
  • each filter element basically flows in the axial direction when entering and exiting the water, which is not only conducive to the uniform distribution of the water flow, but also helps to carry the washed impurities to the axial end of the first filter unit 100 to avoid the impurities from blocking Filter surface.
  • the first filter unit 100 and the second filter unit 200 are arranged in the same composite filter element assembly 1000, and the degree of integration is high, which is conducive to reducing the structural size.
  • the composite filter element assembly 1000 When the composite filter element assembly 1000 is installed, only one set of positioning and installation structure is required. Simple assembly and time saving.
  • the composite filter element assembly 1000 includes a housing 300, and a housing upper cover 310 and a housing lower cover 320 are provided at both ends of the housing 300.
  • a first filter unit 100 and a second filter unit 200 are formed in the housing 300 along the axial length.
  • a spacer bracket 49 is provided in the first filter unit 100, and the spacer bracket 49 is provided in the second uniform flow channel 12.
  • the spacing bracket 49 maintains the second uniform flow channel 12 with a specific width and a specific shape, ensuring good fluid circulation performance.
  • the spacer bracket 49 is rolled together with the first filter 10.
  • the spacing bracket 49 can ensure the tightness and strength of the entire rolled first filter element 10.
  • the first filter 10 is a roll made of non-woven fabric, polypropylene layer, and carbon fiber. Long service life. When used in the filtration of tap water, it can initially remove sediment, rust and residual chlorine.
  • the first filter element 10 may also be formed by rolling only one or two materials of the filter layer, which is not specifically limited here.
  • the second filter 20 is a hollow carbon rod. It can be used for the final filtration of tap water.
  • the carbon rod can filter out the odor, organic matter, colloid, iron and residual chlorine in the water body, so that the second filter 20 controls the drinking water quality conditions after the water is discharged, and improves the taste.
  • the second filter 20 can also be formed by a combination of activated carbon particles, filter screens and frames, and is not limited to the arrangement of carbon rods.
  • the carbon filter medium can also be replaced with KDF55 treatment medium (high purity copper / zinc alloy medium) to remove residual chlorine in water through electrochemical reaction, reduce mineral scaling, reduce suspended solids such as ferrous oxide, and inhibit microorganisms, Remove heavy metals.
  • the second filter unit 200 has a fifth inlet and outlet 301.
  • the second filter unit 200 is provided with a filtered water circulation cavity and a waste water circulation cavity, a filter membrane 35 is provided between the filtered water circulation cavity and the waste water circulation cavity, the filtered water circulation cavity is connected to the transition flow channel 24, and the waste water circulation cavity is connected to the fifth inlet Exit 301.
  • the fifth inlet and outlet 301 here is the outlet of the waste water generated by the second filter unit 200 after being filtered.
  • the fourth inlet 302 is the inlet of the liquid to be filtered of the second filter unit 200.
  • the third filter 30 includes a filter membrane 35 that filters the water circulation chamber and the waste water circulation chamber.
  • This application is limited to “first”, “second”, “third”, “fourth”, “fifth” features can explicitly or implicitly include one or more of the features, used to distinguish the description of features , No order, no importance.
  • a second uniformly distributed flow channel 31 and a third filter channel 32 are provided in this order from the outside to the inside of the second filter unit 200, and the third filter channel 32 surrounds the filtered water circulation cavity It is provided with the waste water circulation cavity.
  • the third filter channel 32 is provided with a third filter element 30.
  • the waste water circulation cavity and the fifth uniform distribution channel 31 communicate with each other through the third filter channel 32, and the fifth uniform distribution channel 31 communicates with the fourth inlet Exit 302.
  • the liquid entering from the fourth inlet and outlet 302 is distributed and distributed in the fifth uniform distribution channel 31, and is evenly distributed on the outer side of the third filter 30.
  • the high salinity The waste water flows to the waste water circulation chamber and is discharged through the fifth inlet and outlet 301 (as shown in FIG. 4).
  • the passing path is short, and the flow rate is large, and it has a scouring effect on the impurities on the surface of the filter membrane 35 when passing radially
  • the water flow is easier to wash away impurities and pass through the filter membrane 35.
  • the inlet and outlet water of the fifth uniform distribution channel 31 outside the third filter 30 and the inlet and outlet water inside the central tube 33 mostly flow in the axial direction, which is not only conducive to the uniform distribution of the water flow, but also to the third filter
  • the impurities washed by the surface are brought to the axial end of the second filter unit 200 to prevent the impurities from being blocked on the filter surface.
  • the second filter unit 200 is provided with a central tube 33 and a plurality of wastewater headers 34, which are surrounded by a plurality of wastewater headers 34
  • the central tube 33 is provided.
  • a filter membrane 35 is provided on the outer periphery of the central tube 33.
  • the central tube 33 communicates with the transition channel 24 and a filtered water inlet hole is provided on the tube wall.
  • the filter membrane 35 on the outer periphery of the central tube 33 is a reverse osmosis membrane, and can only pass pure water with a lower salinity and better water quality.
  • the meaning of "plurality" is two or more.
  • the central tube 33, a plurality of wastewater headers 34, and the filtration membrane 35 constitute a spiral wound reverse osmosis membrane element.
  • the lumen of the center tube 33 constitutes the above-mentioned filtered water circulation cavity, and the lumen of the wastewater header 34 constitutes the above-mentioned wastewater circulation cavity.
  • the filtration membrane 35 is a plurality of groups.
  • the filtration membrane 35 is a reverse osmosis membrane bag.
  • the reverse osmosis membrane bag has a first part and a second part.
  • Each wastewater header 34 and central tube 33 are separated by at least one reverse osmosis membrane bag.
  • a part is separated, and the second part of the plurality of reverse osmosis membrane bag is formed around the tube group composed of the central tube 33 and the plurality of waste water collecting pipes 34 to form a multi-layer membrane module.
  • the water that enters the second filter unit 200 from the fourth inlet and outlet 302 is filtered by the reverse osmosis membrane bag, and spirally flows along the second part of the reverse osmosis membrane bag toward the central tube 33.
  • the purified water that has penetrated into the reverse osmosis membrane bag also flows toward the central tube 33 in the spiral direction.
  • pure water flows from the filtered water inlet hole of the central tube 33 toward the transition flow channel 24.
  • the high salinity wastewater remaining after the filtration flows to the wastewater collection hole on the wall of the wastewater header 34, which is connected to the fifth inlet 301 and discharges the wastewater from the fifth inlet 301.
  • the third filter 30 of the present application is a reverse osmosis membrane element (RO membrane element).
  • the reverse osmosis membrane element adopts a lateral flow water-saving membrane, and the lateral flow enters water to increase the flow rate of the membrane surface, ensure a high recovery rate of pure water, and a longer service life of the filtration membrane 35.
  • the third filter element 30 may also be an ultrafiltration membrane module, specifically, an ultrafiltration membrane filter element available on the market may be used.
  • an ultrafiltration membrane filter element available on the market may be used.
  • the principles and techniques of ultrafiltration filtration and reverse osmosis filtration are all well-known technologies known to those skilled in the art, and will not be repeated in this application.
  • the third filter 30 uses the above filter, the liquid needs to be pressurized in advance and then pumped into the fourth inlet 302.
  • the fourth uniform flow channel 22 is cylindrical, the first uniform flow channel 11, the first filter channel 13, the second uniform flow channel 12, and the third The uniformly distributed flow channel 21 and the second filter channel 23 are ring-shaped arranged in layers.
  • the fourth uniform flow channel 22 is at the center of the first filter unit 100, which is cylindrical.
  • a circle of the second filter channel 23 is sleeved on the outside of the fourth uniform flow channel 22
  • a circle of the third uniform flow channel 21 is sleeved on the outer side of the second filter channel 23
  • a circle of the third uniform flow channel 21 is sleeved on the outside
  • a circle of the second uniformly distributed flow channel 12 is enclosed.
  • a circle of the first filter channel 13 is sheathed on the outside of the second uniformly distributed channel 12, and a circle of the first uniformly distributed channel 11 is sheathed on the outside of the first filter channel 13.
  • the filter area of each layer of filter elements is large, the filter elements are evenly distributed, the first filter unit 100 has a compact overall layout, occupies less installation space, and has a high degree of integration.
  • a first inner end cover 41 is provided in the first filter unit 100, and the first inner end cover 41 is sealed in the second filter channel 23 and the fourth uniform flow channel
  • the end surface of 22 faces the second filtering unit 200 to block the second uniform filtering channel 23 and the fourth uniformly distributed flow channel 22.
  • the first inner end cover 41 blocks the second uniform filtering channel 23 and the fourth uniform distribution channel 22, which means that the first inner end cover 41 seals the second uniform filtering channel 23 and the fourth uniform distribution channel
  • the axial end surface of the channel 22 prevents the water in the second uniform filtering channel 23 and the fourth uniform distribution channel 22 from flowing out or flowing in from the axial end surface toward the transition channel 24.
  • the transition flow channel 24 is connected to the third uniform flow channel 21.
  • the liquid in the central tube 33 of the third filter 30 in the second filter unit 200 can be connected to the liquid in the third uniform flow channel 21 on the second filter 20 side of the first filter unit 100 by the transition channel 24.
  • the two ends of the second filter element 20 are flush with the end faces of the second filter channel 23 respectively. Since the first inner end cover 41 closes the second filter channel 23, the first inner end cover 41 also closes the second The bottom of the filter element 20 and the fourth uniform flow channel 22, and provides the bottom support for the second filter element 20, effectively preventing the liquid to be purified on both sides of the second filter element 20, and the liquid after purification It is connected at the bottom to ensure the filtering effect of the second filter 20.
  • the first inner end cover 41 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer circumferential surface of the inner flange contacts the inner circumferential surface of the second filter element 20.
  • the outer periphery of the first inner end cover 41 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the second filter 20.
  • the same arrangement of the inner flange and the outer flange can enhance the liquid blocking effect of the first inner end cover 41 on the end surfaces of the fourth uniform flow channel 22 and the second filter element 20;
  • the end cover 41 and the second filter element 20 have a foolproof fit, and are easy to assemble.
  • the axial end surface of the second filter 20 is glued to the first inner end cover 41, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the second filter element 20 is sealingly connected to the first inner end cover 41 by a ring of hot melt adhesive.
  • the first filter unit 100 is provided with a first outer end cover 42 and a waterway spacer 46.
  • the first outer end cover 42 is sealed in the first filter channel 13 and the second The end surface of the second uniform flow channel 12 facing the second filter unit 200, the waterway spacer 46 is connected to the first outer end cover 42 and is spaced between the second uniform flow channel 12 and the third uniform flow channel 21.
  • the first outer end cover 42 closes the bottoms of the first filter element 10 and the second uniform flow channel 12 and provides support for the first filter element 10, effectively preventing the first filter element 10 from The liquid to be purified on the side and the liquid that has been purified are connected in series at the bottom, ensuring the filtering effect of the first filter 10.
  • the waterway spacer 46 produces a reliable separation of the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21, avoids cross-flow of the liquid in the first filter element 10 and the second filter element 20, and prevents each uniformly distributed flow channel The water quality is reduced.
  • the waterway spacer 46 and the first outer end cover 42 are an integrally formed piece.
  • One-piece molding is convenient for processing and manufacturing. After the integral molding, the gap between the water channel spacer 46 and the first outer end cover 42 is less likely to occur, and the position is relatively stable.
  • the one-piece molding is also convenient for assembly, and after long-term use, it is not easy for cross-flow between the third uniformly distributed flow channel 21 and the second uniformly distributed flow channel 12.
  • the first filter element 10 and the second filter element 20 can play a good supporting role.
  • the middle of the first outer end cover 42 protrudes upward to form a boss, and the first inner end cover 41 is suspended above the boss.
  • the first inner end cover 41 separates the first filter unit 100 and the second filter unit 200 in the axial direction, and the first outer end cover 42 is provided with a transition flow channel 24 in the axial direction.
  • the first outer end cap 42 makes the first filter element 10, the second filter element 20, and the third filter element 30 separate in the axial direction, and the transition flow channel 24 thereon makes the second filter element 20 and the third filter element Form a series relationship between 30.
  • the external piping required for the connection between the second filter element 20 and the third filter element 30 is saved.
  • the outer periphery of the first outer end cover 42 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the first filter 10.
  • the outer burring jacket is on the outside of the middle boss of the first outer end cover 42. The outer burring blocks both sides of the middle boss, which can enhance the liquid blocking of the first outer end cover 42 from the end surface of the first filter 10 Effect; and can form a foolproof first filter 10, easy to assemble.
  • the end surface of the first filter element 10 is glued to the first outer end cover 42, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the first filter element 10 is sealingly connected to the first outer end cover 42 by a ring of hot melt adhesive.
  • the gap between the first inner end cover 41 and the first outer end cover 42 is small, and the first inner end cover 41 is in contact with the first outer end cover 42 when subjected to a force toward the first outer end cover 42 In contact, when the transition flow channel 24 enters the water and squeezes the first inner end cover 41, the gap becomes larger, and the water flow is more smooth.
  • the first inner end cover 41 is arranged in a suspension design at a small distance from the first outer end cover 42, so that the water pressure can reach a delicate balance when the water flows through the second filter 20. That is, when the water pressure in the fourth uniform flow channel 22 is greater than the water pressure at the transition channel 24, the first inner end cover 41 can temporarily seal the transition channel 24.
  • a second inner end cap 43 and a second outer end cap 44 are provided in the first filter unit 100, and the second outer end cap 44 is sealed in the first filter channel 13
  • the second inner end cap 43 is sealed on the end surface of the second filter channel 23 that is away from the second filter unit 200.
  • the second inner end cover 43 closes the top of the second filter channel 23, and provides the top connection for the second filter element 20, provides a direction for the third inlet and outlet 201, and effectively prevents the second filter element 20
  • the liquid to be purified on both sides is in series with the liquid after purification on the top, which further ensures the filtering effect of the second filter 20.
  • the fluid filtered by the second filter assembly 20 collects in the fourth uniform flow channel 22 and can be discharged outward from the third inlet 201.
  • the second outer end cover 44 closes the tops of the first filter channel 13 and the second uniform flow channel 12, and provides a connection for the first filter element 10 in the first filter channel 13 to provide the first inlet and outlet 101.
  • the second inlet and outlet 102 are separated, which effectively prevents the liquid to be purified on both sides of the first filter element 10 and the purified liquid from intersecting at the top, further ensuring the filtering effect of the first filter element 10.
  • the periphery of the second inner end cover 43 is provided with a downward burring, and the inner side of the burring is in contact with the outer peripheral surface of the second filter 20.
  • the second inner end cover 43 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer peripheral surface of the inner flange contacts the inner peripheral surface of the second filter 20.
  • the same arrangement of the inner flange and the outer flange makes the connection between the second inner end cap 43 and the second filter element 20 tighter and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second inner end cover 43 on the end surface of the second filter 20, and can form a foolproof fit for the second inner end cover 43, which is easy to assemble.
  • the axial end surface of the second filter element 20 is glued to the second inner end cover 43, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the second filter element 20 is sealingly connected to the second inner end cover 43 by a ring of hot melt adhesive.
  • the second outer end cap 44 is fitted on the axial end surface of the first filter element 10 away from the transition channel 24 to block the first filter element 10.
  • the periphery of the second outer end cover 44 is provided with a downward burring edge, and the inner side of the burring edge is in contact with the outer circumferential surface of the first filter 10.
  • the setting of the outer flange makes the connection between the second outer end cover 44 and the first filter element 10 tighter, and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second outer end cover 44 on the end surface of the first filter 10, and can form a foolproof fit for the first filter 10, which is easy to assemble.
  • the axial end surface of the first filter element 10 is glued to the second outer end cover 44, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the first filter element 10 is sealingly connected to the second outer end cover 44 by a ring of hot melt adhesive.
  • the second outer end cap 44 is sleeved on the outer side of the second inner end cap 43, and a second middle end cap 45 and a second middle end are also sleeved between the second outer end cap 44 and the second inner end cap 43
  • the flow path between the cover 45 and the second outer end cover 44 communicates with the second inlet and outlet 102.
  • the second middle end cap 45 further seals the upper part of the first filter unit 100, further separating the second uniform flow channel 12 and the third uniform flow channel 21, which is also beneficial to the second inlet 102 and The partition arrangement of the third inlet 201.
  • Providing the second middle end cap 45 instead of integrally forming the second middle end cap 45 and the waterway spacer 46 is advantageous for mold opening on the one hand, and assembly needs on the other hand, improving the reliability of the overall assembly.
  • the second middle end cap 45 may not be provided, so that the waterway spacer 46 can be directly connected to the second inner end cap 43, which saves the number of parts.
  • the second filter 20 since the second filter 20 is to be assembled to the inside of the water channel spacer 46, the opening of the water channel spacer 46 is too small to fit in, and the large opening of the water channel spacer 46 will affect the second outer end cap 44 and the first filter The assembly of 10 makes the overall assembly more difficult.
  • a second middle end cap 45 When assembling, first install the second filter 20 and other parts into the waterway spacer 46, and then connect the second middle end cap 45 to the waterway spacer 46, then the assembly is satisfied Need to improve the reliability of the overall assembly.
  • the waterway spacer 46 is integrally formed with the first outer end cap 42, it can be manufactured by an integral injection method. At this time, it is not convenient to integrally inject the second middle end cap 45 to facilitate mold opening.
  • the tops of the second middle end cap 45, the second inner end cap 43, and the second outer end cap 44 are flush. It is advantageous for sealing the first filter unit 100 by the upper cover 310 of the casing, and is convenient for assembly.
  • the distance between the second middle end cap 45 and the second outer end cap 44 is small, so that the water pressure can reach a delicate balance when the water flows through the first filter 10. That is, when the water pressure inside the water channel spacer 46 is greater than the outside water pressure, the second middle end cap 45 may be squeezed on the second outer end cap 44 to slow down the filtering speed of the first filter 10. During normal operation, the water flow squeezes away the second middle end cap 45 and normally flows toward the second inlet and outlet 102.
  • all parts in the first filter unit 100 are pre-assembled into an integral piece, that is, the first filter element 10, the second filter element 20, the first inner end cap 41, the first outer end cap 42, the second inner The end cap 43, the second outer end cap 44, and the second middle end cap 45 are pre-connected to be integrated into a front and rear integrated filter element. Even the sealing ring can be pre-assembled.
  • Such a front-rear integrated filter element can be directly inserted between the partition plate in the casing 300 and the upper cover 310 of the casing during assembly, and the assembly process of the whole machine is greatly simplified. Moreover, if the upper cover 310 of the casing is detachably connected to the bottle body, the user can also replace the front and rear integrated filter elements after use, and the operation steps when the user replaces it are also very easy, which improves the user's replacement. Core experience, reducing the cost of core replacement.
  • the flow channel structure of the composite filter element assembly 1000 further includes: a third end cap 47 and a fourth end
  • the cover 48 and the third end cap 47 are sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the first end of the filtered water circulation cavity away from the first One end of the filter unit 100.
  • the third end cap 47 and the fourth end cap 48 provide limit installation for the third filter 30, the central pipe 33, and the waste water header 34.
  • the third end cap 47 closes the top of the third filter 30 and the waste water circulation cavity, and provides the top connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 It is connected with the purified liquid at the top;
  • the fourth end cap 48 closes the bottom of the third filter element 30 and the filtered water circulation cavity, and provides the bottom seal and support for the third filter element 30, which effectively prevents The liquid to be purified on both sides of the third filter 30 and the liquid after purification are connected at the bottom to ensure the filtering effect of the third filter 30.
  • both ends of the third end cap 47 are provided with a second cannula 471 and a third cannula 472 that communicate with each other.
  • the third insertion tube 472 is connected to the center tube 33.
  • the third end cap 47 closes the top of the third filter 30 and provides a top support connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 and the Liquids are tandem at the top.
  • the third end cap 47 is inserted into the transition flow channel 24 through the second insertion tube 471, on the one hand, it is convenient to seal, and prevents the high-pressure water in the second filtration unit 200 from flowing to the transition flow channel 24 without being filtered by the third filter 30
  • the use of the transition runner 24 for positioning improves positioning accuracy while reducing assembly difficulty.
  • the third end cap 47 is inserted into the central tube 33 through the third insertion tube 472.
  • the surface contact between the third insertion tube 472 and the wall of the central tube 33 is used to achieve sealing, and on the other hand, the positioning of the central tube 33 is facilitated. With the installation, the center tube 33 is prevented from skewing and leaking after long-term use.
  • the third end cap 47 is provided with a first positioning protrusion 473, which is corresponding to the wastewater header 34, and one end of the wastewater header 34 is inserted in the first positioning protrusion On the 473, the first positioning protrusion 473 has a certain foolproof coordination function, which is convenient for the positioning and installation of the third end cap 47 and the waste water header 34, and prevents the waste water header 34 from skewing after long-term use.
  • a first assembly positioning structure 474 is provided on the peripheral wall of the third end cap 47, and a plurality of first assembly positioning structures 474 are spaced apart in the circumferential direction, and a plurality of first assemblies The positioning structure 474 abuts against the inner wall of the housing 300 to increase the centering of the third filter 30 in the second filter unit 200, and to prevent the third filter 30 from being skewed as a whole to prevent the transition channel 24 from fitting well.
  • a sealing ring is provided between the second cannula 471 and the transition flow channel 24.
  • the fourth end cap 48 is provided with a fourth insertion tube 481, and the fourth end cap 48 is provided with waste discharges connected to the wastewater header 34 and the fifth inlet 301 respectively Mouth 482.
  • a second positioning protrusion 483 is protruded from the middle of the fourth end cover 48.
  • the second positioning protrusion 483 is corresponding to the central tube 33, and one end of the central tube 33 is inserted into the second positioning protrusion From 483, the second positioning protrusion 483 has a blocking function, and also has a certain foolproof coordination function, which facilitates the positioning and installation of the fourth end cap 48 and the central tube 33, prevents the central tube 33 from skewing and can be closed during long-term use
  • the lower portion of the center tube 33 prevents the liquid in the center tube 33 from flowing out.
  • a second assembly positioning structure 484 is provided on the peripheral wall of the fourth end cap 48, a plurality of second assembly positioning structures 484 are spaced apart along the circumferential direction, and a plurality of second assemblies
  • the positioning structure 484 stops against the inner wall of the housing 300 to improve the alignment of the third filter element 30 in the second filter unit 200, and to prevent the third filter element 30 from being skewed as a whole Good coordination at the takeover.
  • the housing 300 of the composite filter element assembly 1000 is provided with a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction.
  • the first filter unit 100 has a first inlet 101, a second inlet 102, and a third inlet 201, the second filter unit 200 has a fourth inlet 302, and a first filter unit 100 and a second filter unit 200 are provided between There is a transition channel 24.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction and are connected by the transition flow channel 24.
  • the first filter unit 100 and the second filter unit 200 are compactly matched to form a whole and save part External connection pipes.
  • the first filtering unit 100 is provided with a first uniform flow channel 11, a first filtering channel 13, a second uniform flow channel 12, a third uniform flow channel 21, a second The filter channel 23 and the fourth uniformly distributed flow channel 22.
  • a first filter element 10 is provided in the first filter channel 13, and a second filter element 20 is provided in the second filter channel 23.
  • the two purified water paths of the first filter element 10 and the second filter element 20 can increase the filtration performance of the first filter unit 100 and meet different requirements of water quality water discharge effect.
  • the first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13, and the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with the second filter channel 23.
  • one of the uniform flow channels on both sides of the first filter channel 13 can evenly distribute the liquid before the first filter 10 is filtered, and the other can evenly distribute the liquid after the first filter 10 is filtered, the first filter 10 Both sides are evenly pressed.
  • one of the uniform flow channels on both sides of the second filter channel 23 can evenly distribute the liquid before the second filter 20 is filtered, and the other can evenly distribute the liquid after the second filter 20 is filtered, and both sides of the second filter 20 Even pressure.
  • the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21 are isolated and not in circulation.
  • the two evenly distributed flow channels are isolated, so that the two independent purified water channels in the first filter unit 100 do not interfere with each other during operation.
  • the effluent of one purified water channel can be directly used as the influent of another purified water channel; the effluent of one purified water channel can also be filtered by other external filtering components and then used as the inlet water of another purified water channel.
  • the first uniform flow channel 11 is connected to the first inlet 101, and the second uniform flow channel 12 is connected to the second inlet 102.
  • the second inlet 102 is used as the liquid outlet of the first filter 10; if the first inlet 101 is used as the liquid outlet of the first filter 10
  • the second inlet 102 serves as the liquid inlet of the first filter 10.
  • One of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the third inlet and outlet 201, and the other of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the transition flow channel 24.
  • the fourth uniform distribution channel 22 is connected to the third inlet 201; when the third uniform distribution channel 21 is connected to the third inlet 201, the first The four uniformly distributed flow channels 22 are connected to the transition flow channels 24.
  • the second filter unit 200 is provided with a third filter 30.
  • the third filter element 30 can further increase the overall filtering function of the composite filter element assembly 1000 to improve the quality of the water.
  • first filter unit 100 four uniformly distributed flow channels and two filter channels are sequentially arranged in the first filter unit 100 in the radial direction to form two mutually independent purified water channels, and filter elements are respectively arranged in the two filter channels.
  • the overall structure of the first filter unit 100 is made compact, and two water quality filtration links are integrated in the first filter unit 100, and a set of filter elements in the second filter unit 200 makes the composite filter element assembly of the present application
  • the whole 1000 has three water quality filtration links.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and one of the evenly distributed flow channels on both sides of the second filter element 20 is connected to the third filter element 30 through the transition flow channel 24.
  • the two filter units (100, 200) With a compact fit, it saves the external connection pipes that the filtered water of the third filter 30 needs to lay when flowing to the second filter 20; or saves the filtered water of the second filter 20 when flowing to the third filter
  • the external connection pipes required for the filtering of the piece 30 It is advantageous for the composite filter element assembly 1000 to reduce the overall size, and for simplifying the arrangement of external piping.
  • the first filter channel 13 From the layout position of the first uniform flow channel 11, the first filter channel 13, the second uniform distribution channel 12, the third uniform distribution channel 21, the second filter channel 23, and the fourth uniform distribution channel 22,
  • the passing path is short and the flow volume is large.
  • it has a flushing effect on the impurities on the surface of the filter when passing radially, and the water flow is more likely to wash away the impurities and then pass through the filter.
  • each filter element basically flows in the axial direction when entering and exiting the water, which is not only conducive to the uniform distribution of the water flow, but also helps to carry the washed impurities to the axial end of the first filter unit 100 to avoid the impurities from blocking Filter surface.
  • the first filter unit 100 and the second filter unit 200 are arranged in the same composite filter element assembly 1000, and the degree of integration is high, which is conducive to reducing the structural size.
  • the composite filter element assembly 1000 When the composite filter element assembly 1000 is installed, only one set of positioning and installation structure is required. Simple assembly and time saving.
  • both ends of the housing 300 of the composite filter element assembly 1000 are open, and both ends of the housing 300 are provided with a housing upper cover 310 and a housing lower cover 320.
  • both ends of the housing 300 are provided with a housing upper cover 310 and a housing lower cover 320.
  • the first filter unit 100 is provided with a spacer bracket 49, and the spacer bracket 49 is disposed in the second uniform flow channel 12.
  • the spacing bracket 49 maintains the second uniform flow channel 12 with a specific width and a specific shape, ensuring good fluid circulation performance.
  • the spacer bracket 49 is rolled together with the first filter 10.
  • the spacing bracket 49 can ensure the tightness and strength of the entire rolled first filter element 10.
  • the first filter 10 is a roll made of non-woven fabric, polypropylene layer, and carbon fiber. Long service life. When used in the filtration of tap water, it can initially remove sediment, rust and residual chlorine.
  • the first filter element 10 may also be formed by rolling only one or two materials of the filter layer, which is not specifically limited here.
  • the second filter 20 is a hollow carbon rod. It can be used for the final filtration of tap water.
  • the carbon rod can filter out the odor, organic matter, colloid, iron and residual chlorine in the water body, so that the second filter 20 can control the drinking water quality after the water is discharged, and improve the taste.
  • the second filter 20 can also be formed by a combination of activated carbon particles, filter screens and frames, and is not limited to the arrangement of carbon rods.
  • the carbon filter medium can also be replaced with KDF55 treatment medium (high purity copper / zinc alloy medium) to remove residual chlorine in water through electrochemical reaction, reduce mineral scaling, reduce suspended solids such as ferrous oxide, and inhibit microorganisms, Remove heavy metals.
  • the second filter unit 200 has a fifth inlet and outlet 301.
  • the second filter unit 200 is provided with a filtered water circulation cavity and a waste water circulation cavity, a filter membrane 35 is provided between the filtered water circulation cavity and the waste water circulation cavity, the filtered water circulation cavity is connected to the transition flow channel 24, and the waste water circulation cavity is connected to the fifth inlet Exit 301.
  • the fifth inlet and outlet 301 here is the outlet of the waste water generated by the second filter unit 200 after being filtered.
  • the fourth inlet 302 is the inlet of the liquid to be filtered of the second filter unit 200.
  • the third filter 30 includes a filter membrane 35 that filters the water circulation chamber and the waste water circulation chamber.
  • This application is limited to “first”, “second”, “third”, “fourth”, “fifth” features can explicitly or implicitly include one or more of the features, used to distinguish the description of features , No order, no importance.
  • the second filtering unit 200 is provided with a fifth uniform flow channel 31 and a third filtering channel 32 in this order from the outside to the inside in the radial direction, and the third filtering channel 32 surrounds the filtered water circulation cavity It is provided with the waste water circulation cavity.
  • the third filter channel 32 is provided with a third filter element 30.
  • the waste water circulation cavity and the fifth uniform distribution channel 31 communicate with each other through the third filter channel 32, and the fifth uniform distribution channel 31 communicates with the fourth inlet Exit 302.
  • the liquid entering from the fourth inlet and outlet 302 is distributed and distributed in the fifth uniform distribution channel 31, and is evenly distributed on the outer side of the third filter 30.
  • the high salinity The waste water flows to the waste water circulation chamber and is discharged through the fifth inlet and outlet 301 (as shown in FIG. 18).
  • the passing path is short, and the flow rate is large, and it has a scouring effect on the impurities on the surface of the filter membrane 35 when passing radially
  • the water flow is easier to wash away impurities and pass through the filter membrane 35.
  • the inlet and outlet water of the fifth uniform distribution channel 31 outside the third filter 30 and the inlet and outlet water inside the central tube 33 mostly flow in the axial direction, which is not only conducive to the uniform distribution of the water flow, but also to the third filter
  • the impurities washed by the surface are brought to the axial end of the second filter unit 200 to prevent the impurities from being blocked on the filter surface.
  • the second filter unit 200 is provided with a central tube 33 and a plurality of wastewater headers 34, which are surrounded by a plurality of wastewater headers 34
  • the central tube 33 is provided.
  • a filter membrane 35 is provided on the outer periphery of the central tube 33.
  • the central tube 33 communicates with the transition channel 24 and a filtered water inlet hole is provided on the tube wall.
  • the filter membrane 35 on the outer periphery of the central tube 33 is a reverse osmosis membrane, and can only pass pure water with a lower salinity and better water quality.
  • plural means two or more.
  • the central tube 33, a plurality of wastewater headers 34, and the filtration membrane 35 constitute a spiral wound reverse osmosis membrane element.
  • the lumen of the center tube 33 constitutes the above-mentioned filtered water circulation cavity, and the lumen of the wastewater header 34 constitutes the above-mentioned wastewater circulation cavity.
  • the filtration membrane 35 is a plurality of groups.
  • the filtration membrane 35 is a reverse osmosis membrane bag.
  • the reverse osmosis membrane bag has a first part and a second part.
  • Each wastewater header 34 and central tube 33 are separated by at least one reverse osmosis membrane bag.
  • a part is separated, and the second part of the plurality of reverse osmosis membrane bag is formed around the tube group composed of the central tube 33 and the plurality of waste water collecting pipes 34 to form a multi-layer membrane module.
  • the water that enters the second filter unit 200 from the fourth inlet and outlet 302 is filtered by the reverse osmosis membrane bag, and spirally flows along the second part of the reverse osmosis membrane bag toward the central tube 33.
  • the purified water that has penetrated into the reverse osmosis membrane bag also flows toward the central tube 33 in the spiral direction.
  • pure water flows from the filtered water inlet hole of the central tube 33 toward the transition flow channel 24.
  • the high salinity wastewater remaining after the filtration flows to the wastewater collection hole on the wall of the wastewater header 34, which is connected to the fifth inlet 301 and discharges the wastewater from the fifth inlet 301.
  • the third filter 30 of the present application is a reverse osmosis membrane element (RO membrane element).
  • the reverse osmosis membrane element adopts a lateral flow water-saving membrane, and the lateral flow enters water to increase the flow rate of the membrane surface, ensure a high recovery rate of pure water, and a longer service life of the filtration membrane 35.
  • the third filter element 30 may also be an ultrafiltration membrane module, specifically, an ultrafiltration membrane filter element available on the market may be used.
  • an ultrafiltration membrane filter element available on the market may be used.
  • the principles and techniques of ultrafiltration filtration and reverse osmosis filtration are all well-known technologies known to those skilled in the art, and will not be repeated in this application.
  • the third filter 30 uses the above filter, the liquid needs to be pressurized in advance and then pumped into the fourth inlet 302.
  • the fourth uniform flow channel 22 is cylindrical, the first uniform flow channel 11, the first filter channel 13, the second uniform flow channel 12, and the third The uniformly distributed flow channel 21 and the second filter channel 23 are ring-shaped arranged in layers.
  • the fourth uniform flow channel 22 is at the center of the first filter unit 100, which is cylindrical.
  • a circle of the second filter channel 23 is sleeved on the outside of the fourth uniform flow channel 22
  • a circle of the third uniform flow channel 21 is sleeved on the outer side of the second filter channel 23
  • a circle of the third uniform flow channel 21 is sleeved on the outside
  • a circle of the second uniformly distributed flow channel 12 is enclosed.
  • a circle of the first filter channel 13 is sheathed on the outside of the second uniformly distributed channel 12, and a circle of the first uniformly distributed channel 11 is sheathed on the outside of the first filter channel 13.
  • the filter area of each layer of filter elements is large, the filter elements are evenly distributed, the first filter unit 100 has a compact overall layout, occupies less installation space, and has a high degree of integration.
  • a first inner end cover 41 is provided in the first filter unit 100, and the first inner end cover 41 is sealed in the second filter channel 23 and the fourth uniform flow channel
  • the end surface of 22 faces the second filtering unit 200 to block the second uniform filtering channel 23 and the fourth uniformly distributed flow channel 22.
  • the first inner end cover 41 blocks the second uniform filtering channel 23 and the fourth uniform distribution channel 22, which means that the first inner end cover 41 seals the second uniform filtering channel 23 and the fourth uniform distribution channel
  • the axial end surface of the channel 22 prevents the water in the second uniform filtering channel 23 and the fourth uniform distribution channel 22 from flowing out or flowing in from the axial end surface toward the transition channel 24.
  • the transition flow channel 24 is connected to the third uniform flow channel 21.
  • the liquid in the central tube 33 of the third filter 30 in the second filter unit 200 can be connected to the liquid in the third uniform flow channel 21 on the second filter 20 side of the first filter unit 100 by the transition channel 24.
  • the two ends of the second filter element 20 are flush with the end faces of the second filter channel 23 respectively. Since the first inner end cover 41 closes the second filter channel 23, the first inner end cover 41 also closes the second The bottom of the filter element 20 and the fourth uniform flow channel 22, and provides the bottom support for the second filter element 20, effectively preventing the liquid to be purified on both sides of the second filter element 20, and the liquid after purification It is connected at the bottom to ensure the filtering effect of the second filter 20.
  • the first inner end cover 41 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer circumferential surface of the inner flange contacts the inner circumferential surface of the second filter element 20.
  • the outer periphery of the first inner end cover 41 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the second filter 20.
  • the same arrangement of the inner flange and the outer flange can enhance the liquid blocking effect of the first inner end cover 41 on the end surfaces of the fourth uniform flow channel 22 and the second filter element 20;
  • the end cover 41 and the second filter element 20 have a foolproof fit, and are easy to assemble.
  • the axial end surface of the second filter 20 is glued to the first inner end cover 41, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the second filter element 20 is sealingly connected to the first inner end cover 41 by a ring of hot melt adhesive.
  • the first filter unit 100 is provided with a first outer end cover 42 and a waterway spacer 46, and the first outer end cover 42 is sealed in the first filter channel 13, the first The end surface of the second uniform flow channel 12 facing the second filter unit 200, the waterway spacer 46 is connected to the first outer end cover 42 and is spaced between the second uniform flow channel 12 and the third uniform flow channel 21.
  • the first outer end cover 42 closes the bottoms of the first filter element 10 and the second uniform flow channel 12, and provides support for the first filter element 10, effectively preventing the first filter element 10 from The liquid to be purified on the side and the liquid that has been purified are connected in series at the bottom, ensuring the filtering effect of the first filter 10.
  • the waterway spacer 46 produces a reliable separation of the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21, avoids cross-flow of the liquid in the first filter element 10 and the second filter element 20, and prevents each uniformly distributed flow channel The water quality is reduced.
  • the waterway spacer 46 and the first outer end cover 42 are an integrally formed piece.
  • One-piece molding is convenient for processing and manufacturing. After the integral molding, the gap between the water channel spacer 46 and the first outer end cover 42 is less likely to occur, and the position is relatively stable.
  • the one-piece molding is also convenient for assembly, and after long-term use, it is not easy for cross-flow between the third uniformly distributed flow channel 21 and the second uniformly distributed flow channel 12.
  • the first filter element 10 and the second filter element 20 can play a good supporting role.
  • the middle of the first outer end cover 42 protrudes upward to form a boss, and the first inner end cover 41 is suspended above the boss.
  • the first inner end cover 41 separates the first filter unit 100 and the second filter unit 200 in the axial direction, and the first outer end cover 42 is provided with a transition flow channel 24 in the axial direction.
  • the first outer end cap 42 makes the first filter element 10, the second filter element 20, and the third filter element 30 separate in the axial direction, and the transition flow channel 24 thereon makes the second filter element 20 and the third filter element Form a series relationship between 30.
  • the external piping required for the connection between the second filter element 20 and the third filter element 30 is saved.
  • the outer periphery of the first outer end cover 42 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the first filter 10.
  • the outer burring jacket is on the outside of the middle boss of the first outer end cover 42. The outer burring blocks both sides of the middle boss, which can enhance the liquid blocking of the first outer end cover 42 from the end surface of the first filter 10 Effect; and can form a foolproof first filter 10, easy to assemble.
  • the end surface of the first filter element 10 is glued to the first outer end cover 42, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the first filter element 10 is sealingly connected to the first outer end cover 42 by a ring of hot melt adhesive.
  • the gap between the first inner end cover 41 and the first outer end cover 42 is small, and the first inner end cover 41 is in contact with the first outer end cover 42 when subjected to a force toward the first outer end cover 42 In contact, when the transition flow channel 24 enters the water and squeezes the first inner end cover 41, the gap becomes larger, and the water flow is more smooth.
  • the first inner end cover 41 is arranged in a suspension design at a small distance from the first outer end cover 42, so that the water pressure can reach a delicate balance when the water flows through the second filter 20. That is, when the water pressure in the fourth uniform flow channel 22 is greater than the water pressure at the transition channel 24, the first inner end cover 41 can temporarily seal the transition channel 24.
  • a second inner end cap 43 and a second outer end cap 44 are provided in the first filter unit 100, and the second outer end cap 44 is sealed in the first filter channel 13
  • the second inner end cap 43 is sealed on the end surface of the second filter channel 23 that is away from the second filter unit 200.
  • the second inner end cover 43 closes the top of the second filter channel 23, and provides the top connection for the second filter element 20, provides a direction for the third inlet and outlet 201, and effectively prevents the second filter element 20
  • the liquid to be purified on both sides is in series with the liquid after purification on the top, which further ensures the filtering effect of the second filter 20.
  • the fluid filtered by the second filter assembly 20 is collected in the fourth uniform flow channel 22, and can be discharged outward through the third inlet and outlet 201.
  • the second outer end cover 44 closes the tops of the first filter channel 13 and the second uniform flow channel 12, and provides a connection for the first filter element 10 in the first filter channel 13 to provide the first inlet and outlet 101.
  • the second inlet and outlet 102 are separated, which effectively prevents the liquid to be purified on both sides of the first filter element 10 and the purified liquid from intersecting at the top, further ensuring the filtering effect of the first filter element 10.
  • the periphery of the second inner end cover 43 is provided with a downward burring, and the inner side of the burring is in contact with the outer peripheral surface of the second filter 20.
  • the second inner end cover 43 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer peripheral surface of the inner flange contacts the inner peripheral surface of the second filter 20.
  • the same arrangement of the inner flange and the outer flange makes the connection between the second inner end cap 43 and the second filter element 20 tighter and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second inner end cover 43 on the end surface of the second filter 20, and can form a foolproof fit for the second inner end cover 43, which is easy to assemble.
  • the axial end surface of the second filter element 20 is glued to the second inner end cover 43, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the second filter element 20 is sealingly connected to the second inner end cover 43 by a ring of hot melt adhesive.
  • the second outer end cap 44 is fitted on the axial end surface of the first filter element 10 away from the transition channel 24 to block the first filter element 10.
  • the periphery of the second outer end cover 44 is provided with a downward burring edge, and the inner side of the burring edge is in contact with the outer circumferential surface of the first filter 10.
  • the setting of the outer flange makes the connection between the second outer end cover 44 and the first filter element 10 tighter, and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second outer end cover 44 on the end surface of the first filter 10, and can form a foolproof fit for the first filter 10, which is easy to assemble.
  • the axial end surface of the first filter element 10 is glued to the second outer end cover 44, which not only facilitates assembly, but also facilitates the installation of the integrated core.
  • the first filter element 10 is sealingly connected to the second outer end cover 44 by a ring of hot melt adhesive.
  • the second outer end cap 44 is sleeved on the outer side of the second inner end cap 43, and a second middle end cap 45 and a second middle end are also sleeved between the second outer end cap 44 and the second inner end cap 43
  • the flow path between the cover 45 and the second outer end cover 44 communicates with the second inlet and outlet 102.
  • the second middle end cap 45 further seals the upper part of the first filter unit 100, further separating the second uniform flow channel 12 and the third uniform flow channel 21, which is also beneficial to the second inlet 102 and The partition arrangement of the third inlet 201.
  • Providing the second middle end cap 45 instead of integrally forming the second middle end cap 45 and the waterway spacer 46 is advantageous for mold opening on the one hand, and assembly needs on the other hand, improving the reliability of the overall assembly.
  • the second middle end cap 45 may not be provided, so that the waterway spacer 46 can be directly connected to the second inner end cap 43, which saves the number of parts.
  • the second filter 20 since the second filter 20 is to be assembled to the inside of the water channel spacer 46, the opening of the water channel spacer 46 is too small to fit in, and the large opening of the water channel spacer 46 will affect the second outer end cap 44 and the first filter The assembly of 10 makes the overall assembly more difficult.
  • a second middle end cap 45 When assembling, first install the second filter 20 and other parts into the waterway spacer 46, and then connect the second middle end cap 45 to the waterway spacer 46, then the assembly is satisfied Need to improve the reliability of the overall assembly.
  • the waterway spacer 46 is integrally formed with the first outer end cap 42, it can be manufactured by an integral injection method. At this time, it is not convenient to integrally inject the second middle end cap 45 to facilitate mold opening.
  • the tops of the second middle end cap 45, the second inner end cap 43, and the second outer end cap 44 are flush. It is advantageous for sealing the first filter unit 100 by the upper cover 310 of the casing, and is convenient for assembly.
  • the distance between the second middle end cap 45 and the second outer end cap 44 is small, so that the water pressure can reach a delicate balance when the water flows through the first filter 10. That is, when the water pressure inside the water channel spacer 46 is greater than the outside water pressure, the second middle end cap 45 may be squeezed on the second outer end cap 44 to slow down the filtering speed of the first filter 10. During normal operation, the water flow squeezes away the second middle end cap 45 and normally flows toward the second inlet and outlet 102.
  • all parts in the first filter unit 100 are pre-assembled into an integral piece, that is, the first filter element 10, the second filter element 20, the first inner end cap 41, the first outer end cap 42, the second inner The end cap 43, the second outer end cap 44, and the second middle end cap 45 are pre-connected to be integrated into a front and rear integrated filter element. Even the sealing ring can be pre-assembled.
  • Such a front-rear integrated filter element can be directly inserted between the partition plate in the casing 300 and the upper cover 310 of the casing during assembly, and the assembly process of the whole machine is greatly simplified. Moreover, if the upper cover 310 of the casing is detachably connected to the bottle body, the user can also replace the front and rear integrated filter elements after use, and the operation steps when the user replaces it are also very easy, which improves the user's replacement. Core experience, reducing the cost of core replacement.
  • the composite filter element assembly 1000 further includes: a third end cover 47 and a fourth end cover 48,
  • the three end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100
  • the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 One end.
  • the third end cap 47 and the fourth end cap 48 provide limit installation for the third filter 30, the central pipe 33, and the waste water header 34.
  • the third end cap 47 closes the top of the third filter 30 and the waste water circulation cavity, and provides the top connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 It is connected with the purified liquid at the top;
  • the fourth end cap 48 closes the bottom of the third filter element 30 and the filtered water circulation cavity, and provides the bottom seal and support for the third filter element 30, which effectively prevents The liquid to be purified on both sides of the third filter 30 and the liquid after purification are connected at the bottom to ensure the filtering effect of the third filter 30.
  • the two ends of the third end cap 47 are provided with the second cannula 471 and the third cannula 472 communicating with each other.
  • the third insertion tube 472 is connected to the center tube 33.
  • the third end cap 47 closes the top of the third filter 30 and provides a top support connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 and the Liquids are tandem at the top.
  • the third end cap 47 is inserted into the transition flow channel 24 through the second insertion tube 471, on the one hand, it is convenient to seal, and prevents the high-pressure water in the second filtration unit 200 from flowing to the transition flow channel 24 without being filtered by the third filter 30
  • the use of the transition runner 24 for positioning improves positioning accuracy while reducing assembly difficulty.
  • the third end cap 47 is inserted into the central tube 33 through the third insertion tube 472.
  • the surface contact between the third insertion tube 472 and the wall of the central tube 33 is used to achieve sealing, and on the other hand, the positioning of the central tube 33 is facilitated. With the installation, the center tube 33 is prevented from skewing and leaking after long-term use.
  • the third end cap 47 is provided with a first positioning protrusion 473, which is corresponding to the wastewater header 34, and one end of the wastewater header 34 is inserted in the first positioning protrusion On the 473, the first positioning protrusion 473 has a certain foolproof coordination function, which is convenient for the positioning and installation of the third end cap 47 and the waste water header 34, and prevents the waste water header 34 from skewing after long-term use.
  • a first assembly positioning structure 474 is provided on the peripheral wall of the third end cap 47, and a plurality of first assembly positioning structures 474 are spaced apart in the circumferential direction, and a plurality of first assemblies The positioning structure 474 abuts against the inner wall of the housing 300 to increase the centering of the third filter 30 in the second filter unit 200, and to prevent the third filter 30 from being skewed as a whole to prevent the transition channel 24 from fitting well.
  • a sealing ring is provided between the second cannula 471 and the transition flow channel 24.
  • the fourth end cap 48 is provided with a fourth insertion tube 481, and the fourth end cap 48 is provided with waste discharges connected to the wastewater header 34 and the fifth inlet 301 respectively Mouth 482.
  • a second positioning protrusion 483 is protruded from the middle of the fourth end cover 48.
  • the second positioning protrusion 483 is corresponding to the central tube 33, and one end of the central tube 33 is inserted into the second positioning protrusion From 483, the second positioning protrusion 483 has a blocking function, and also has a certain foolproof coordination function, which facilitates the positioning and installation of the fourth end cap 48 and the central tube 33, prevents the central tube 33 from skewing and can be closed during long-term use
  • the lower portion of the center tube 33 prevents the liquid in the center tube 33 from flowing out.
  • a second assembly positioning structure 484 is provided on the peripheral wall of the fourth end cap 48, a plurality of second assembly positioning structures 484 are spaced apart along the circumferential direction, and a plurality of second assemblies
  • the positioning structure 484 stops against the inner wall of the housing 300 to improve the alignment of the third filter element 30 in the second filter unit 200, and to prevent the third filter element 30 from being skewed as a whole Good coordination at the takeover.
  • the water purification system 2000 of the first embodiment of the present application will be described below with reference to FIG. 13.
  • a water purification system 2000 includes: a composite filter element assembly 1000, a water inlet pipe 400, a pure water pipe 500, a first conversion pipe 700, and a booster pump 710.
  • the water inlet pipe 400 is connected to the first inlet and outlet 101 of the composite filter element assembly 1000.
  • tap water or raw water from other water sources
  • the first filter 10 will perform preliminary filtering on the tap water.
  • the pure water pipe 500 is connected to the third inlet 201 of the composite filter element assembly 1000.
  • the pure water after the multi-stage filtration of the composite filter element assembly 1000 can be led out by the pure water pipe 500.
  • the first conversion tube 700 is respectively connected to the second inlet 102 and the fourth inlet 302, and the booster pump 710 is connected in series to the first conversion tube 700.
  • the first conversion tube 700 communicates with the flow path between the first filter element 10 and the third filter element 20, so that the pre-filtered water filtered by the first filter element 10 enters the fifth uniform distribution in the third filter element 20 In the flow channel 31.
  • the filtering speed can be accelerated and the filtering efficiency can be improved.
  • the third filter element 20 adopts a reverse osmosis membrane module or an ultrafiltration membrane module, the conversion of low-ion concentration pre-effluent to high-ion concentration wastewater and pure water can be completed.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and are connected by the transition flow channel 24, the two filter units are compactly matched, and the transition flow channel 24 replaces the third filter element
  • the external connection pipes required for communication between 30 and the second filter element 20 save the external water inlet connection pipe of the second filter element 20 and the external water outlet connection pipe of the third filter element 30 to make the water purification system 2000 as a whole saves the number of external pipes and the difficulty of layout, increases the simplicity of the overall design of the water purification system 2000, and increases the reliability of the operation of the water purification system 2000.
  • the water purification system 2000 of the present application greatly reduces the overall layout space and saves In addition to the layout of external pipelines, the external pipelines arranged in the system are relatively concentrated and easy to arrange.
  • the raw water entering the water purification system 2000 is preliminarily purified by the first filtering element 10 of the first filtering unit 100, then enters the second filtering unit 200 for filtering, and then returns to the first filtering
  • the unit 100 is filtered by the second filter 20.
  • it before entering the second filter unit 200, it is pressurized by the booster pump 710, so that the water flow can pass through the third filter 30 at a high pressure, and the filtration efficiency is improved.
  • the composite filter element assembly 1000 is arranged in such a manner that the filter elements (first filter element 10, second filter element 20) that can be filtered under normal pressure or low pressure are concentrated in the first filter unit 100, and the filter element that requires high-pressure filtration (section Three filter elements 30) are concentrated in the second filter unit 200, and the two are arranged separately.
  • the connection of each part of the first filter unit 100 can be assembled according to the requirements of normal pressure, to avoid excessive assembly costs, and the second filter unit 200 The connection of each part is assembled according to the high voltage requirements.
  • the water purification system 2000 further includes: a second switching control valve 720.
  • the second switching control valve 720 is connected in series to the first switching tube 700, and the second switching control valve 720 can control the circulation and shutoff of the water flow in the first switching tube 700.
  • the system is judged by blocking the flow of water on the first switching tube 700.
  • the second switching control valve 720 is close to the booster pump 710 to ensure that there is no longer any water flow in the booster pump 710 during the judgment, which protects the booster pump 710 effect.
  • a second switch control valve 720 is provided on the first switch tube 700 to control the entire system, and the second filter unit 200 can be avoided.
  • the water flow is countercurrent along the first conversion tube 700.
  • the water purification system 2000 further includes: a high-pressure switch 510 connected in series on the pure water pipe 500, and the high-pressure switch 510 is electrically coupled to the second transfer control valve 720.
  • the high-pressure switch 510 is provided on the pure water pipe 500.
  • the second switching control valve 720 is closed, so that the composite filter element assembly 1000 stops purifying water.
  • the high-pressure switch 510 is electrically connected to the second switching control valve 720, and can control the opening and closing of the second switching control valve 720, so that the water pressure in the outlet pipe 500 and the first switching pipe 700 is kept stable, so that the entire water purification system 2000 Coordinated operation of various waterways.
  • the water purification system 2000 further includes: a first one-way valve 520 connected in series on the pure water pipe 500.
  • the first one-way valve 520 ensures that the drinking water filtered from the second filter 20 flows to the final water end without reverse flow, so that the water purification system 2000 operates stably and reliably.
  • the end of the pure water pipe 500 is connected to a faucet 900 for drinking water for the user, which is convenient for the user to directly use high-quality pure water.
  • the water purification system 2000 further includes: a waste water pipe 600 and a waste water valve 610.
  • the waste water pipe 600 is connected to the fifth inlet 301 of the composite filter element assembly 1000, and the waste water valve 610 is connected in series to the waste water pipe 600.
  • the opening of the waste water valve 610 can control the discharge of waste water with high salt content in the third filter unit 30 to ensure the normal operation of the third filter assembly 30.
  • the waste water valve 610 is an adjustable waste water valve.
  • the waste water valve 610 is a cumulative flush. That is, when the waste liquid accumulates to a certain amount, the control system controls the waste water valve 610 to open once.
  • the waste water valve 610 is a standby flush.
  • the adjustable waste water valve ensures that the waste water valve 610 itself is not blocked, and at the same time ensures the service life of the third filter 30. After the third filter 30 has been working for a period of time, a certain amount of waste water has been accumulated, and the waste water valve 610 is opened to discharge liquid, so as to prevent the long-term accumulation of waste water on the surface of the third filter 30 to damage the third filter 30, and enhance the entirety of the third filter 30
  • the utilization rate of water can increase the flow rate of filtered water; reduce the continuous corrosion of waste water valve 610 by high-salinity waste water and prolong the service life of waste water valve 610.
  • the water purification system 2000 of the second embodiment of the present application will be described below with reference to FIGS. 14-15.
  • a water purification system 2000 includes: a composite filter element assembly 1000, an inlet pipe 400, a pure water pipe 500, a waste water pipe 600, a waste water valve 610, a first switching control valve 620, a first switching pipe 700, Booster pump 710, second conversion tube 800.
  • the structure of the composite filter element assembly 1000 has been described in detail at the front, and will not be repeated here.
  • the water inlet pipe 400 is connected to the first inlet 101 of the composite filter element assembly 1000.
  • tap water or raw water from other water sources
  • the first filter 10 will perform preliminary filtering on the tap water.
  • the pure water pipe 500 is connected to the third inlet 201 of the composite filter element assembly 1000.
  • the pure water after the multi-stage filtration of the composite filter element assembly 1000 flows out through the third inlet and outlet 201, and then is led out by the pure water pipe 500.
  • the waste water pipe 600 is connected to the fifth inlet 301 of the composite filter element assembly 1000. Here, through the waste water pipe 600, the high-salinity waste water generated after being filtered by the second filter 20 can be led out.
  • the waste water valve 610 is connected to the waste water pipe 600 in series.
  • the opening of the waste water valve 610 can control the discharge of waste water with high salt content in the third filter unit 30 to ensure the normal operation of the third filter assembly 30.
  • the first switching control valve 620 is connected in series to the waste water pipe 600, and the first switching control valve 620 is located between the waste water valve 610 and the fifth inlet 301.
  • the first switching control valve 620 can control whether the fifth inlet and outlet 301 and a section of the waste water pipe 600 connected thereto discharge liquid to the waste water pipe 600 at the rear end.
  • the setting of the first switching control valve 620 can prevent the waste water in the third filter 30 from reaching the waste water valve 610 through the connected waste water pipe 600 under pressure, which can slow down the conductivity increase of the waste water valve 610 and initially guarantee the waste water valve 610 is not easy to scale.
  • the first conversion tube 700 is respectively connected to the second inlet 102 and the fourth inlet 302, and the booster pump 710 is connected in series to the first conversion tube 700.
  • the first conversion tube 700 communicates with the flow path between the first filter element 10 and the third filter element 20, so that the pre-filtered water filtered by the first filter element 10 enters the fifth uniform distribution in the third filter element 30 In the flow channel 31.
  • the filtering speed can be accelerated and the filtering efficiency can be improved.
  • the third filter element 20 adopts a reverse osmosis membrane module or an ultrafiltration membrane module, the conversion of low-ion concentration pre-effluent to high-ion concentration wastewater and pure water can be completed.
  • the second conversion pipe 800 is connected to the first conversion pipe 700 and the waste water pipe 600 respectively.
  • the connection point of the second conversion pipe 800 and the waste water pipe 600 is located between the waste water valve 610 and the first conversion control valve 620, and the second conversion pipe 800 is connected to the first
  • the connection point of a conversion tube 700 is located between the booster pump 710 and the second inlet and outlet 102.
  • the second conversion tube 800 here serves as a branch connecting the low-salinity pre-water.
  • the second switching tube 800 can introduce low salinity pre-water into the waste water valve 610, replace the high salinity waste liquid in the waste water valve 610, reduce the probability of scaling in the waste water valve 610, increase the service life of the waste water valve 610, and further ensure the waste water Valve 610 is not structurally reliable.
  • the first switching control valve 620 and the booster pump 710 are opened, and the waste water valve 610 is closed.
  • the second conversion tube 800 can The pre-membrane pressure of the third filter 30 is reduced to prevent the membrane from being damaged due to the high pre-membrane pressure, and the service life of the third filter 30 is extended.
  • the water filtered by the third filter 30 can be filtered from the second conversion tube 800, the first conversion tube 700, and then returned to the second filter unit 200. Under multiple filtration, most of the water molecules can pass through the third filter The piece 30 flows to the first filtering unit 100, so that the amount of waste water is not discharged much, and the recovery rate of pure water can be ensured.
  • the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and are connected by the transition flow channel 24.
  • the two filter units are compactly matched.
  • the transition flow channel 24 replaces the third filter 30 and the second filter.
  • the external connection pipes required for the communication between the pieces 20 not only save the external water inlet connection pipe of the second filter element 20, but also save the external water outlet connection pipe of the third filter element 30, so that the water purification system 2000 overall saves the external
  • the number of pipes and the difficulty of layout increase the simplicity of the overall design of the water purification system 2000, prevent system clogging, and increase the reliability of the water purification system 2000 operation.
  • the water purification system 2000 of the present application greatly reduces the overall layout space and saves In addition to the layout of external pipelines, the external pipelines arranged in the system are relatively concentrated and easy to arrange.
  • the raw water entering the water purification system 2000 is preliminarily purified by the first filtering element 10 of the first filtering unit 100, then enters the second filtering unit 200 for filtering, and then returns to the first filtering
  • the unit 100 is filtered by the second filter 20.
  • it before entering the second filter unit 200, it is pressurized by the booster pump 710, so that the water flow can pass through the third filter 30 at a high pressure, and the filtration efficiency is improved.
  • the composite filter element assembly 1000 is arranged in such a manner that the filter elements (first filter element 10, second filter element 20) that can be filtered under normal pressure or low pressure are concentrated in the first filter unit 100, and the filter element that requires high-pressure filtration (section Three filter elements 30) are concentrated in the second filter unit 200, and the two are arranged separately.
  • the connection of each part of the first filter unit 100 can be assembled according to the requirements of normal pressure, to avoid excessive assembly costs, and the second filter unit 200 The connection of each part is assembled according to the high voltage requirements.
  • the water purification system 2000 further includes: a second switching control valve 720, the second switching control valve 720 is connected in series to the first switching tube 700, the second The switching control valve 720 is located between the connection point of the second switching tube 800 and the first switching tube 700 and the second inlet and outlet 102.
  • the second switching control valve 720 may control the circulation and cutoff of the water flow of the pre-exit water in the first switching tube 700 and the second switching tube 800. The system is judged by blocking the flow of the water flow on the first switching tube 700.
  • a second switching control valve 720 is provided on the first switching tube 700 to control the entire system, it can also prevent the water flow in the second filter unit 200 from flowing back along the first conversion tube 700.
  • the water purification system 2000 further includes: a high-pressure switch 510 connected in series on the pure water pipe 500, and the high-pressure switch 510 is electrically coupled with the booster pump 710.
  • the high-pressure switch 510 is provided on the pure water pipe 500.
  • the booster pump 710 is turned off to stop the composite filter element assembly 1000 from purifying water .
  • the high-pressure switch 510 is electrically connected to the booster pump 710, and can control the opening and closing of the booster pump 710, so that the third filter 30 can operate normally and purify the water.
  • the booster pump 710 is electrically connected to the first switching control valve 620, and the booster pump 710 and the first switching control valve 620 are opened and closed at the same time. If any one of the booster pump 710 and the first switching control valve 620 is stopped, the other is stopped in conjunction, so that the water purification system 2000 stops normal filtration, and then the high-salinity waste water in the reflux replacement filtration waste water valve 610 is opened. Facilitates the switching and control of the two flow path states.
  • the water purification system 2000 further includes: a first one-way valve 520 connected in series on the pure water pipe 500.
  • the first one-way valve 520 ensures that the drinking water filtered from the second filter 20 flows to the final water end without reverse flow, so that the water purification system 2000 operates stably and reliably.
  • the water purification system 2000 further includes: a second one-way valve 630 connected in series to the waste water pipe 600, and the second one-way valve 630 is located in the second conversion pipe 800 is between the connection point on the waste water pipe 600 and the waste water valve 610.
  • This second one-way valve 630 ensures that the high-salinity waste water flowing out from the front end of the waste water pipe 600 during normal filtration always flows toward the waste water valve 610 without reverse flow; it ensures that the low outflow from the second conversion pipe 800 when replacing the waste water valve 610 The pre-salted water of the salinity always flows toward the waste water valve 620 without reverse flow, which ensures the stable and reliable operation of the water purification system 2000 and the interference of each pipeline system.
  • the waste water valve 610 is an adjustable waste water valve.
  • the waste water valve 610 is a cumulative flush. That is, when the waste liquid accumulates to a certain amount, or when the total time for normal filtration and purification of water production accumulates to a certain time, the control system controls the waste water valve 610 to open once.
  • the waste water valve 610 is a standby flush.
  • a third switching control valve 810 is provided on the second switching tube 800.
  • the third switching control valve 810 can control the flow path of the second switching tube 800 or cut off.
  • the third switching control valve 810 is high salinity wastewater; during backwashing replacement, the third switching control valve 810 is low salinity pre-effluent.
  • the third switching valve 810 is a common waste water solenoid valve, which is in the form of one-way outflow waste water holding pressure and reverse straight discharge.
  • the following specific embodiments use purified tap water as an example to describe the three-stage filtration function of the composite filter element assembly 1000, and explain the highly integrated integrated design structure of the composite filter element assembly 1000.
  • the first filter 10 will be described as an example of the primary filter; the third filter 30 will be described as an example of intermediate filter.
  • the second filter 20 will be described as an example of final filtration.
  • the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
  • first filtering unit 100 a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22.
  • the first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49.
  • the first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
  • the first uniformly distributed flow channel 11 and the second uniformly distributed flow channel 12 communicate with each other through the first filter channel 13.
  • the first uniformly distributed flow channel 11 is connected to the first inlet and outlet 101 of tap water raw water, and the second uniformly distributed flow channel 11
  • the flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
  • a hollow carbon rod is provided in the second filter channel 23 as the second filter 20.
  • the second filter 20 serves as a final filtering unit before drinking water is discharged.
  • the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with each other through the second filter channel 23.
  • the third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
  • the second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46.
  • the first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200.
  • the first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42.
  • the first outer end cap 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed.
  • the second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200.
  • a second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
  • the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module.
  • the third filter 30 serves as an intermediate filter before carbon filtration.
  • a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction.
  • the third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage
  • the third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution
  • the flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required.
  • the second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber.
  • a filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber.
  • the filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis
  • the central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
  • the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48.
  • the third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100
  • the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end.
  • Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48.
  • the middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole.
  • a second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
  • the first filter unit 100 is a low-pressure part, and the water pressure of the uniform distribution channel and the filter channel is low.
  • the second filter unit 200 is a high-pressure part, and the water pressure of the uniform distribution channel and the filter channel is high.
  • the water discharged from the second inlet and outlet 102 flows to the fourth inlet and outlet 302 after being pressurized by the pump.
  • the entire tap water filtration process is that tap water enters the first uniform flow channel 11 from the first inlet and outlet 101 and flows radially inward, and after filtering by the first filter 10, flows to the second uniform flow channel 12 and from The upper second inlet / outlet 102 flows out as pre-water.
  • the outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform flow channel 31, flowing in from the side of the lateral flow reverse osmosis water-saving membrane and passed by the third filter 30
  • the high-salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet and outlet 301, and the pure water is collected by the central tube 33 and passes through the transition channel 24.
  • the pure water enters the third uniform distribution channel 21 from the transition channel 24, and is filtered by the second filter 20, enters the fourth uniform distribution channel 22, and flows out of the third inlet 201 for drinking.
  • a water purification system 2000 includes: a composite filter element assembly 1000, a water inlet pipe 400, a pure water pipe 500, a high-pressure switch 510, a first check valve 520, a waste water pipe 600, a waste water valve 610, a first conversion pipe 700, a boost The pump 710, the second switching control valve 720 and the faucet 900.
  • a composite filter element assembly 1000 As shown in FIG. 13 and FIG. 16, a composite filter element assembly 1000, the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
  • first filtering unit 100 a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22.
  • the first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49.
  • the first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
  • the first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13.
  • the first uniform flow channel 11 is connected to the first inlet 101 of the tap water raw water, and the second uniform distribution channel 11
  • the flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
  • a hollow carbon rod is provided in the second filter channel 23 as the second filter 20.
  • the second filter 20 serves as a final filtering unit before drinking water is discharged.
  • the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with each other through the second filter channel 23.
  • the third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
  • the second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46.
  • the first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200.
  • the first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42.
  • the first outer end cover 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed.
  • the second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200.
  • a second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
  • the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module.
  • the third filter 30 serves as an intermediate filter before carbon filtration.
  • a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction.
  • the third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage
  • the third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution
  • the flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required.
  • the second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber.
  • a filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber.
  • the filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis
  • the central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
  • the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48.
  • the third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100
  • the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end.
  • Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48.
  • the middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole.
  • a second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a first inlet 101 for tap water, and the first inlet 101 is connected to a water inlet pipe 400 for tap water.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a third inlet 201 that can output high-quality pure water, and the third inlet 201 is connected to one end of the pure water pipe 500.
  • a first check valve 520 is provided on the pure water pipe 500 near the third inlet 201.
  • a high-pressure switch 510 is also provided on the pure water pipe 500, and the end of the pure water pipe 500 is connected to the faucet 900 for water.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a second inlet and outlet 102 that can supply pre-water, and the second inlet and outlet 102 is connected to one end of the first conversion tube 700.
  • the lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fourth inlet 302 into which reverse osmosis pre-water can enter.
  • the fourth inlet 302 is connected to the other end of the first conversion tube 700.
  • the first switching tube 700 is provided with a booster pump 710 and a second switching control valve 720 in series, and the second switching control valve 720 is located at an end close to the second inlet and outlet 102.
  • the high-pressure switch 510 and the second switching control valve 720 are electrically connected.
  • the lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fifth inlet and outlet 301 that can discharge high salinity waste water during reverse osmosis filtration.
  • One end of the fifth inlet and outlet is connected to the waste water pipe 600. 610.
  • the waste water valve 610 adopts an adjustable waste water valve for flushing.
  • the entire tap water filtration process is to keep the second switching control valve 720, booster pump 710, first check valve 520, and high pressure switch 510 open.
  • the tap water enters from the inlet pipe 400 and enters the first uniform flow channel 11 from the first inlet and outlet 101, and flows radially inward, passing through the first filter element 10 (with nonwoven fabric, polypropylene layer, carbon fiber, and spacer bracket 49 is a roll-shaped primary filter element after being filtered, flows to the second uniform distribution channel 12, and flows out from the second inlet and outlet 102 at the upper part as pre-water into the first conversion tube 700.
  • the outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform distribution channel 31, from the side of the third filter 30 (side flow reverse osmosis water-saving membrane) Inflow and filtering by the third filter 30, high salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet 301 to the wastewater pipe 600, after a certain time or the amount of waste liquid is accumulated, the wastewater valve 610 opens Discharge once.
  • the pure water is collected by the central tube 33 upward and passes through the transition port 332.
  • Pure water enters the third uniform flow channel 21 from the transition port 332, and is filtered by the second filter 20 (carbon cartridge), enters the fourth uniform distribution channel 22, and flows out from the third inlet 201 to the pure water pipe 500 On the first, after the first one-way valve 520 flows out to the faucet 900 for the user to drink.
  • the second filter 20 carbon cartridge
  • a water purification system 2000 includes: a composite filter element assembly 1000, an inlet pipe 400, a pure water pipe 500, a high-pressure switch 510, a first check valve 520, a waste pipe 600, and a waste valve 610
  • a composite filter element assembly 1000 As shown in FIG. 14 and FIG. 15, a composite filter element assembly 1000, the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
  • first filtering unit 100 a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22.
  • the first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49.
  • the first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
  • the first uniformly distributed flow channel 11 and the second uniformly distributed flow channel 12 communicate with each other through the first filter channel 13, the first uniformly distributed flow channel 11 is connected to the first inlet and outlet 101 of tap water raw water, and the second uniformly distributed flow channel 11
  • the flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
  • a hollow carbon rod is provided in the second filter channel 23 as the second filter 20.
  • the second filter 20 serves as a final filtering unit before drinking water is discharged.
  • the third uniform distribution channel 21 and the fourth uniform distribution channel 22 communicate with each other through the second filtering channel 23.
  • the third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
  • the second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46.
  • the first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200.
  • the first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42.
  • the first outer end cover 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed.
  • the second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200.
  • a second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
  • the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module.
  • the third filter 30 serves as an intermediate filter before carbon filtration.
  • a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction.
  • the third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage
  • the third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution
  • the flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required.
  • the second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber.
  • a filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber.
  • the filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis
  • the central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
  • the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48.
  • the third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100
  • the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end.
  • Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48.
  • the middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole.
  • a second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a first inlet 101 for tap water, and the first inlet 101 is connected to the inlet pipe 400 for tap water.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a third inlet 201 that can output high-quality pure water.
  • a first check valve 520 is provided on the pure water pipe 500 near the third inlet 201.
  • a high-pressure switch 510 is also provided on the pure water pipe 500. The end of the pure water pipe 500 communicates with the water tap 900.
  • the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a second inlet and outlet 102 that can supply pre-water, and the second inlet and outlet 102 is connected to one end of the first conversion tube 700.
  • the lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fourth inlet 302 into which reverse osmosis pre-water can enter.
  • the fourth inlet 302 is connected to the other end of the first conversion tube 700.
  • the first switching tube 700 is provided with a booster pump 710 and a second switching control valve 720 in series, and the second switching control valve 720 is close to one end of the second inlet and outlet 102.
  • the high-pressure switch 510 and the booster pump 710 are electrically connected.
  • the lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fifth inlet and outlet 301 that can discharge high salinity wastewater during reverse osmosis filtration.
  • One end of the fifth inlet and outlet 301 communicates with the wastewater pipe 600, and the wastewater pipe 600 is provided with wastewater Valve 610.
  • the waste water valve 610 adopts an adjustable waste water valve for flushing.
  • the first switching control valve 620 is located between the waste water valve 610 and the fifth inlet and outlet 301.
  • the second conversion pipe 800 as a branch is connected to the first conversion pipe 700 and the waste water pipe 600 respectively.
  • the connection point of the second conversion pipe 800 and the waste water pipe 600 is located between the waste water valve 610 and the first conversion control valve 620.
  • the connection point of the tube 800 and the first switching tube 700 is located between the booster pump 710 and the second switching control valve 720.
  • a third switching control valve 810 is provided on the second switching tube 800.
  • the second one-way valve 630 is located between the connection point of the second switching tube 800 on the waste water pipe 600 and the waste water valve 610.
  • the entire tap water filtration and purification process is to maintain the first switching control valve 620, the second switching control valve 720, the booster pump 710, the first check valve 520, the second check valve 630, the high-pressure switch 510, the third switching The control valve 810 opens.
  • the tap water enters from the water inlet pipe 400, enters the first uniform flow channel 11 from the first inlet and outlet 101, and flows radially inward, passing through the first filter 10 (with nonwoven fabric, polypropylene layer, carbon fiber, and spacer bracket) 49 is a roll-shaped primary filter element after being filtered, flows to the second uniform distribution channel 12, and flows out from the second inlet and outlet 102 at the upper part as pre-water into the first conversion tube 700.
  • the outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform distribution channel 31, circumferentially from the side of the third filter 30 (side flow reverse osmosis water-saving membrane) Inflow and filtering by the third filter 30, high salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet 301 to the wastewater pipe 600, after a certain time or the amount of waste liquid is accumulated, the wastewater valve 610 opens Discharge once. A part of the high-salinity wastewater enters the second conversion tube 800 and returns to the booster pump 710 before it improves the recovery rate of pure water. The pure water is collected by the central tube 33 upward and passes through the transition port 332.
  • Pure water enters the third uniform flow channel 21 from the transition port 332, and is filtered by the second filter 20 (charcoal cartridge), enters the fourth uniform distribution channel 22, and flows out from the third inlet 201 to the pure water pipe 500 On the first, after the first one-way valve 520 flows out to the faucet 900 for the user to drink.
  • the second filter 20 charcoal cartridge
  • the first switching control valve 620 is closed, and the high salinity water in the waste water valve 610 is replaced by the tap water pressure. This process lasts 15 to 20 seconds to ensure that the waste water valve 610 has no residual water with high conductivity.
  • the replacement water is the pre-outlet water after the initial filtration.
  • the entire flushing process of the waste water valve 610 is to close the booster pump 710 and the first switching control valve 620 to stop the filtration of purified water, and maintain the second switching control valve 720, the first check valve 520, the second check valve 630, and the high pressure
  • the switch 510 and the third switching control valve 810 are opened.
  • the pre-water flowing out of the second inlet and outlet 102 flows into the first conversion pipe 700 and then directly flows into the second conversion pipe 800, and before passing to the waste water valve 610, the waste water valve 610 is opened to completely replace the high-concentration waste water To prevent scaling of the waste water valve 610.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • the flow channel structure of the composite filter element assembly 1000 and other components of the water purification system 2000 according to the embodiments of the present application, such as the filtration function of each filter assembly and the selection of the material of each filter assembly, are known to those of ordinary skill in the art. , Will not be described in detail here.

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Abstract

A flow channel structure for a composite filter cartridge assembly (1000) and a water purification system (2000). The flow channel structure for a composite filter cartridge assembly comprises a first filter unit (100) and a second filter unit (200) spaced apart from each other in the axial direction, the second filter unit being internally provided with a filter member. The first filter unit is internally provided with, in sequence from the outside to the inside in the radial direction, a first uniform distributing flow channel (11) and a second uniform distributing flow channel (12) communicating with each other by means of a first filter channel (13), and a third uniform distributing flow channel (21) and a fourth uniform distributing flow channel (22) communicating with each other by means of a second filter channel (23), each of the filter channels is provided with one filter member, and the second uniform distributing channel and the third uniform distributing channel are not in communication with each other.

Description

复合滤芯组件的流道结构及净水***Flow channel structure and water purification system of composite filter element assembly
相关申请的交叉引用Cross-reference of related applications
本申请基于申请号为201811289134.4、申请日为2018年10月31日的中国专利申请“复合滤芯组件的流道结构”，申请号为201821786338.4、申请日为2018年10月31日的中国专利申请“复合滤芯组件的流道结构”，申请号为201811291171.9、申请日为2018年10月31日的中国专利申请“净水***”，申请号为201821790153.0、申请日为2018年10月31日的中国专利申请“净水***”，申请号为201811291164.9、申请日为2018年10月31日的中国专利申请“净水***”，申请号为201821786755.9以及申请日为2018年10月31日的中国专利申请“净水***”提出，并要求上述中国专利申请的优先权，上述中国专利申请的全部内容在此引入本申请作为参考。This application is based on the Chinese patent application "Composite Filter Assembly Runner Structure" with the application number 201811289134.4 and the application date of October 31, 2018. The Chinese patent application with the application number 201821786338.4 and the application date of October 31, 2018 " The flow channel structure of the composite filter element ", Chinese patent application" Water Purification System "with application number 201811291171.9 and application date of October 31, 2018, Chinese patent with application number 201821790153.0 and application date of October 31, 2018 Apply for the "Water Purification System", the Chinese patent application "Water Purification System" with the application number 201811291164.9, the application date on October 31, 2018, the application number 201821786755.9, and the Chinese Patent Application on the October 31, 2018 application date " "Water purification system" is proposed and claims the priority of the aforementioned Chinese patent application. The entire content of the aforementioned Chinese patent application is hereby incorporated by reference into this application.
技术领域Technical field
本申请属于净水技术领域，具体是一种复合滤芯组件的流道结构及净水***。The present application belongs to the technical field of water purification, in particular to a flow channel structure and water purification system of a composite filter element assembly.
背景技术Background technique
从城市自来水厂输送到各用户的自来水中，通常会含有一定量的盐离子、金属物质、氯化物、微生物、泥沙等物质。为了提高饮水质量，越来越多的家庭选择在自来水的出水管上安装净水机，净水机内带有多种功能的滤芯，以去除自来水中不同种类的有害物质。The tap water transported from the city water plant to each user usually contains a certain amount of salt ions, metal substances, chlorides, microorganisms, sediment and other substances. In order to improve the quality of drinking water, more and more families choose to install a water purifier on the tap water outlet pipe. The water purifier has a multi-function filter element to remove different types of harmful substances in the tap water.
通常，现有的净水机滤芯一般为3～4级，部分厂家净水机滤芯为双芯。为了改善复合滤芯组件的过滤效果，通常在净水机内布置多种滤芯组件，各个滤芯组件之间的进、出水口依次串联，不同的滤芯两侧分别形成进水流道、出水流道，为了达到高品质的饮用水，往往需要串联三级、四级滤芯组件，不同滤芯组件之间的出水流道和进水流道之间均需要外部管道进行连接，使净水机内部管道***庞杂，净水机整机占用空间较大，不方便安装和更换滤芯。外部管道的连接处容易发生漏水，整体的可净化的水量有较大限制。Generally, the existing water purifier filter element is generally 3 to 4 grades, and some manufacturers of water purifier filter element are double core. In order to improve the filtering effect of the composite filter element assembly, a variety of filter element assemblies are usually arranged in the water purifier, and the inlet and outlet ports of each filter element assembly are connected in series in sequence. To achieve high-quality drinking water, it is often necessary to connect three-stage and four-stage filter core components in series. Both the outlet and inlet flow channels between different filter core components require external pipes to connect, so that the internal pipeline system of the water purifier is complicated and clean. The whole water machine occupies a large space, which is inconvenient to install and replace the filter element. Water leakage is likely to occur at the connection of external pipes, and the overall purifiable water volume has a relatively large limit.
另外，上述净水机滤芯组成的净水***的各个管道布置复杂，各级过滤单元之间均通过外部管道连接可靠性差、控制精度低。In addition, each pipe of the water purification system composed of the filter element of the water purifier is complicated, and the filter units at all levels are connected by external pipes with poor reliability and low control accuracy.
再者，当在多级滤芯中使用反渗透滤芯组件时，其往往会排出较高盐度的浓缩废水，使得废水管道上的废水阀在长时间使用的过程中发生堵塞，致使净水***可靠性差，反渗透膜使用寿命低。In addition, when reverse osmosis filter components are used in multi-stage filter elements, they often discharge concentrated salinity wastewater with higher salinity, which makes the wastewater valve on the wastewater pipeline clogged during long-term use, resulting in a reliable water purification system Poor performance, low service life of reverse osmosis membrane.
发明内容Summary of the invention
本申请旨在至少在一定程度上解决相关技术中的技术问题之一。This application aims to solve one of the technical problems in the related art at least to a certain extent.
为此，本申请的一个目的在于提出一种复合滤芯组件的流道结构，所述复合滤芯组件的流道结构布置紧凑，占用空间小，具有多重过滤效果。To this end, an object of the present application is to propose a flow channel structure of a composite filter element assembly. The flow channel structure of the composite filter element assembly is compactly arranged, takes up little space, and has multiple filtering effects.
本申请的另一目的在于提出一种具有上述复合滤芯组件的流道结构的净水***，净水***设计简化，稳定可靠，使用寿命长。Another object of the present application is to propose a water purification system with a flow channel structure of the above composite filter element assembly. The design of the water purification system is simplified, stable and reliable, and has a long service life.
根据本申请实施例的复合滤芯组件的流道结构，包括：沿轴向间隔开设置的第一过滤单元和第二过滤单元，所述第一过滤单元具有第一进出口、第二进出口和第三进出口，所述第二过滤单元具有第四进出口，所述第一过滤单元和所述第二过滤单元之间设有过渡流道，其中，所述第一过滤单元内沿径向由外到内依次设置有第一均布流道、第一过滤通道、第二均布流道、第三均布流道、第二过滤通道和第四均布流道，所述第一过滤通道内设有第一过滤件，所述第二过滤通道内设有第二过滤件，所述第一均布流道与所述第二均布流道通过所述第一过滤通道连通，所述第三均布流道与所述第四均布流道通过所述第二过滤通道连通，所述第二均布流道与所述第三均布流道之间隔绝不流通，所述第一均布流道连接所述第一进出口，所述第二均布流道连接所述第二进出口，所述第三均布流道和所述第四均布流道中的一个连接所述第三进出口，所述第三均布流道和所述第四均布流道中的另一个连接所述过渡流道；所述第二过滤单元内设有第三过滤件。The flow channel structure of a composite filter element assembly according to an embodiment of the present application includes: a first filter unit and a second filter unit spaced apart in the axial direction, the first filter unit having a first inlet and a second inlet A third inlet and outlet, the second filter unit has a fourth inlet and outlet, a transition flow channel is provided between the first filter unit and the second filter unit, wherein the first filter unit is radially A first uniform flow channel, a first filter channel, a second uniform flow channel, a third uniform flow channel, a second filter channel, and a fourth uniform flow channel are provided in this order from outside to inside A first filter element is provided in the channel, and a second filter element is provided in the second filter channel. The first uniform flow channel and the second uniform flow channel communicate with each other through the first filter channel. The third uniformly distributed flow channel and the fourth uniformly distributed flow channel communicate with each other through the second filter channel, the second uniformly distributed flow channel is isolated from the third uniformly distributed flow channel, and does not circulate, the The first uniform flow channel is connected to the first inlet and outlet, and the second uniform flow channel is connected to the first Inlet and outlet, one of the third uniformly distributed flow channel and the fourth uniformly distributed flow channel is connected to the third inlet and outlet, the other of the third uniformly distributed flow channel and the fourth uniformly distributed flow channel The transition flow channel is connected; a third filter element is provided in the second filter unit.
根据本申请实施例的复合滤芯组件的流道结构，第一过滤单元内沿径向依次设有四个均布流道和两个通道，两个通道内分别布置一组过滤件，使得第一过滤单元内的整体结构紧凑，且集成了两种过滤功能。第二均布流道与第三均布流道之间隔绝不流通，使得第一过滤件，第二过滤件分别形成前、后置过滤，形成两种不同的过滤体系。第一过滤单元和第二过滤单元在轴向间隔开设置，并通过过渡流道连接，两过滤单元配合紧凑，且节省了部分外部的连接管道。第二过滤单元内设置第三过滤件，可进一步增加复合滤芯组件整体的过滤功能，提升最终出水的品质。According to the flow channel structure of the composite filter element assembly of the embodiment of the present application, four uniformly distributed flow channels and two channels are sequentially arranged in the radial direction in the first filter unit, and a group of filter elements are respectively arranged in the two channels so that the first The overall structure of the filter unit is compact, and two filter functions are integrated. The second uniformly distributed flow channel and the third uniformly distributed flow channel are isolated from each other and do not circulate, so that the first filter element and the second filter element respectively form front and rear filters, forming two different filter systems. The first filter unit and the second filter unit are spaced apart in the axial direction and connected by a transition flow channel. The two filter units are compactly matched and save some external connecting pipes. A third filter element is provided in the second filter unit, which can further increase the overall filtering function of the composite filter element assembly, and improve the quality of the final effluent.
可选的，所述第二过滤单元具有第五进出口，所述第二过滤单元内设有过滤水流通腔和废水流通腔，所述过滤水流通腔和所述废水流通腔之间设有过滤膜，所述过滤水流通腔连通所述过渡流道，所述废水流通腔连通所述第五进出口。Optionally, the second filter unit has a fifth inlet and outlet, the second filter unit is provided with a filtered water circulation cavity and a waste water circulation cavity, and the filtered water circulation cavity and the waste water circulation cavity are provided between In the filtration membrane, the filtered water circulation cavity communicates with the transition flow channel, and the waste water circulation cavity communicates with the fifth inlet and outlet.
可选的，所述第二过滤单元内沿径向由外到内依次设置有第五均布流道、第三过滤通道，所述第三过滤通道环绕所述过滤水流通腔和所述废水流通腔设置，所述第三过滤通道内设有所述第三过滤件，所述废水流通腔与所述第五均布流道通过所述第三过滤通道连通，所述第五均布流道连通所述第四进出口。Optionally, a fifth uniform flow channel and a third filter channel are sequentially arranged in the second filter unit from outside to inside in the radial direction, and the third filter channel surrounds the filtered water circulation cavity and the wastewater A flow cavity is provided, the third filter element is provided in the third filter channel, the waste water flow cavity and the fifth uniform flow channel communicate with each other through the third filter channel, and the fifth uniform flow The road connects to the fourth import and export.
可选的，所述第四均布流道为柱形，所述第一均布流道、所述第一过滤通道、所述第二均布流道、所述第三均布流道、所述第二过滤通道为依次层套设置的环形。Optionally, the fourth uniform flow channel is cylindrical, the first uniform flow channel, the first filter channel, the second uniform flow channel, and the third uniform flow channel, The second filter channel is a ring arranged in layers.
可选的，所述第一过滤单元内设有第一内端盖，所述第一内端盖封在所述第二过滤通道和所述第四均布流道的朝向所述第二过滤单元的端面，所述过渡流道与所述第三均布流道相连。Optionally, a first inner end cover is provided in the first filter unit, and the first inner end cover is sealed in the second filter channel and the fourth uniformly distributed flow channel toward the second filter On the end surface of the unit, the transition flow channel is connected to the third uniform flow channel.
可选的，所述第一过滤单元内设有第一外端盖和水路间隔筒，所述第一外端盖封在所述第一过滤通道、所述第二均布流道的朝向所述第二过滤单元的端面，所述水路间隔筒与所述第一外端盖相连且间隔在所述第二均布流道和所述第三均布流道之间。Optionally, a first outer end cap and a waterway spacer are provided in the first filter unit, and the first outer end cap is sealed in the direction of the first filter channel and the second uniform flow channel On the end surface of the second filter unit, the water channel spacer is connected to the first outer end cover and is spaced between the second uniform distribution channel and the third uniform distribution channel.
可选的，所述第一过滤单元内设有第二内端盖和第二外端盖，所述第二外端盖封在所述第一过滤通道的远离所述第二过滤单元的端面，所述第二内端盖封在所述第二过滤通道的远离所述第二过滤单元的端面。Optionally, a second inner end cap and a second outer end cap are provided in the first filter unit, and the second outer end cap is sealed on an end surface of the first filter channel away from the second filter unit , The second inner end cover is sealed on an end surface of the second filter channel away from the second filter unit.
可选的，还包括：第三端盖和第四端盖，所述第三端盖封在所述第三过滤通道和所述废水流通腔的朝向所述第一过滤单元的一端，所述第四端盖封在所述第三过滤通道和所述过滤水流通腔的远离所述第一过滤单元的一端。Optionally, the method further includes: a third end cover and a fourth end cover, the third end cover is sealed at an end of the third filtration channel and the waste water circulation cavity facing the first filtration unit, the The fourth end cap is sealed at an end of the third filter channel and the filtered water circulation cavity away from the first filter unit.
可选的，所述第二过滤单元内设有中心管和多个废水集管，多个所述废水集管环绕所述中心管设置，所述过滤膜为反渗透膜片袋，所述反渗透膜片袋具有第一部分和第二部分，每一所述废水集管和所述中心管被至少一个所述反渗透膜片袋的第一部分隔开，多个所述反渗透膜片袋的所述第二部分形成围绕在所述中心管组的周围的多层薄膜组件，多个所述反渗透膜片袋卷制形成的筒体构成所述第三过滤件，所述中心管连通所述过渡流道且管壁上设有过滤水入孔，所述废水集管连通所述第五进出口且管壁上设有废水入孔。Optionally, a center tube and a plurality of waste water headers are provided in the second filter unit, and a plurality of the waste water headers are disposed around the center tube, the filter membrane is a reverse osmosis membrane bag, and the reverse The osmotic membrane bag has a first part and a second part, each of the wastewater header and the central pipe are separated by at least one first part of the reverse osmosis membrane bag, a plurality of the reverse osmosis membrane bag The second part forms a multi-layer membrane module surrounding the central tube group, and a plurality of reverse osmosis membrane bag roll-formed cylinders constitute the third filter element, and the central tube communicates with the The transition flow channel is provided with a filtered water inlet hole on the pipe wall, the waste water header is connected to the fifth inlet and outlet and a waste water inlet hole is provided on the pipe wall.
可选的，所述第一过滤单元内设有间隔支架，所述间隔支架设在所述第二均布流道内。Optionally, a spacer bracket is provided in the first filter unit, and the spacer bracket is provided in the second uniform flow channel.
根据本申请实施例的净水***，包括：复合滤芯组件，所述复合滤芯组件的壳体内沿轴向间隔开设置有第一过滤单元和第二过滤单元，所述第一过滤单元具有第一进出口、第二进出口和第三进出口，所述第二过滤单元具有第四进出口，所述第一过滤单元和所述第二过滤单元之间设有过渡流道，其中，所述第一过滤单元内依次设置有第一均布流道、第一过滤通道、第二均布流道、第三均布流道、第二过滤通道和第四均布流道，所述第一过滤通道内设有第一过滤件，所述第二过滤通道内设有第二过滤件，所述第一均布流道与所述第二均布流道通过所述第一过滤通道连通，所述第三均布流道与所述第四均布流道通过所述第二过滤通道连通，所述第二均布流道与所述第三均布流道之间隔绝不流通，所述第一均布流道连接所述第一进出口，所述第二均布流道连接所述第二进 出口，所述第三均布流道和所述第四均布流道中的一个连接所述第三进出口，所述第三均布流道和所述第四均布流道中的另一个连接所述过渡流道，所述第二过滤单元内设有第三过滤件；进水管，所述进水管连接所述复合滤芯组件的所述第一进出口；纯水管，所述纯水管连接所述复合滤芯组件的所述第三进出口；第一转换管，所述第一转换管分别连接所述第二进出口和所述第四进出口；增压泵，所述增压泵串联连接在所述第一转换管上。A water purification system according to an embodiment of the present application includes: a composite filter element assembly, and a first filter unit and a second filter unit are axially spaced apart in a housing of the composite filter element assembly, the first filter unit having a first The second inlet and outlet, the second inlet and the third inlet, the second filter unit has a fourth inlet and outlet, and a transition flow channel is provided between the first filter unit and the second filter unit, wherein A first uniform flow channel, a first filter channel, a second uniform flow channel, a third uniform flow channel, a second filter channel and a fourth uniform flow channel are arranged in this order in the first filtering unit A first filter element is provided in the filter channel, and a second filter element is provided in the second filter channel, and the first uniform flow channel and the second uniform flow channel communicate through the first filter channel, The third uniformly distributed flow channel and the fourth uniformly distributed flow channel communicate with each other through the second filtering channel, and the second uniformly distributed flow channel is isolated from the third uniformly distributed flow channel The first uniform flow channel is connected to the first inlet and outlet, and the second uniform flow channel Connected to the second inlet and outlet, one of the third uniformly distributed flow channel and the fourth uniformly distributed flow channel is connected to the third inlet and outlet, the third uniformly distributed flow channel and the fourth uniformly distributed flow channel The other of the flow channels is connected to the transitional flow channel, and a third filter element is provided in the second filter unit; a water inlet pipe, the water inlet pipe is connected to the first inlet and outlet of the composite filter element assembly; a pure water pipe , The pure water pipe is connected to the third inlet and outlet of the composite filter element assembly; a first conversion pipe is connected to the second inlet and the fourth inlet and outlet respectively; booster pump , The booster pump is connected in series on the first conversion tube.
根据本申请实施例的净水***，第一过滤单元和第二过滤单元在轴向间隔开设置，并由过渡流道连接，两过滤单元配合紧凑，且节省了第三过滤件和第二过滤件之间连通的外部的连接管道，节省了外部管道的数量，增加了整体净水***布置的简易性和运行的可靠性。各个管路设置较为集中，布置容易。第一过滤单元内依次设有四种均布流道和两种通道，两种通道内分别布置一种过滤件，使得第一过滤单元内的整体结构紧凑，且集成了两种过滤功能。第二均布流道与第三均布流道之间隔绝不流通，使得第一过滤件，第二过滤件分别形成前、后置过滤，形成两种不同的过滤体系。第二过滤单元内设置第三过滤件，可进一步增加净水***整体的过滤功能，提升最终出水的品质。通过净水***的各管道连接，进入净水***的原水先经第一过滤单元的第一过滤件初步净化，然后进入第二过滤单元进行过滤，之后再回到第一过滤单元由第二过滤件进行过滤。其中，在进入第二过滤单元前要经增压泵增压，使水流能够高压通过第三过滤件，提高过滤效率。而复合滤芯组件如此设置，将可以常压过滤或者低压过滤的过滤件集中在第一过滤单元内，将需要高压过滤的过滤件集中在第二过滤单元内，将二者分开设置，第一过滤单元的各部分连接可以按照常压要求进行装配，避免装配成本过高，而第二过滤单元的各部分连接按照高压要求进行装配。According to the water purification system of the embodiment of the present application, the first filter unit and the second filter unit are spaced apart in the axial direction and connected by the transition flow channel, the two filter units are compactly matched, and the third filter and the second filter are saved The external connecting pipes connected between the pieces save the number of external pipes and increase the ease of layout and reliability of the overall water purification system. All pipelines are relatively centralized and easy to arrange. The first filtering unit is provided with four uniform flow channels and two channels in sequence, and a filter element is arranged in each of the two channels, so that the overall structure of the first filtering unit is compact and two filtering functions are integrated. The second uniformly distributed flow channel and the third uniformly distributed flow channel are isolated from each other and do not circulate, so that the first filter element and the second filter element respectively form front and rear filters, forming two different filter systems. A third filter element is provided in the second filter unit, which can further increase the overall filtering function of the water purification system and improve the quality of the final water output. Through the connection of the pipes of the water purification system, the raw water entering the water purification system is preliminarily purified by the first filtering element of the first filtering unit, then enters the second filtering unit for filtering, and then returns to the first filtering unit for filtering by the second Filter. Among them, before entering the second filter unit, it is pressurized by a booster pump, so that the water flow can pass through the third filter element at a high pressure, and the filtration efficiency is improved. The composite filter element assembly is arranged in such a way that the filter elements that can be filtered under normal pressure or low pressure are concentrated in the first filter unit, and the filter elements that require high-pressure filtration are concentrated in the second filter unit, and the two are separately set. The connection of each part of the unit can be assembled according to the requirements of normal pressure to avoid excessive assembly cost, and the connection of each part of the second filter unit is assembled according to the requirements of high pressure.
可选的，净水***还包括：第二转换控制阀，所述第二转换控制阀串联连接在所述第一转换管上。Optionally, the water purification system further includes: a second switching control valve connected in series to the first switching tube.
可选的，净水***还包括：串联连接在所述纯水管上的高压开关，所述高压开关与所述第二转换控制阀电联接。Optionally, the water purification system further includes a high-pressure switch connected in series on the pure water pipe, and the high-pressure switch is electrically connected to the second conversion control valve.
可选的，净水***还包括：串联连接在所述纯水管上的第一单向阀。Optionally, the water purification system further includes: a first one-way valve connected in series on the pure water pipe.
可选的，所述第二过滤单元具有第五进出口，所述第二过滤单元内设有过滤水流通腔和废水流通腔，所述过滤水流通腔和所述废水流通腔之间设有过滤膜，所述过滤水流通腔连通所述过渡流道，所述废水流通腔连通所述第五进出口。Optionally, the second filter unit has a fifth inlet and outlet, the second filter unit is provided with a filtered water circulation cavity and a waste water circulation cavity, and the filtered water circulation cavity and the waste water circulation cavity are provided between In the filtration membrane, the filtered water circulation cavity communicates with the transition flow channel, and the waste water circulation cavity communicates with the fifth inlet and outlet.
可选的，净水***还包括：废水管，所述废水管连接所述复合滤芯组件的所述第五进出口；废水阀，所述废水阀串联连接在所述废水管上。Optionally, the water purification system further includes: a waste water pipe connected to the fifth inlet and outlet of the composite filter element assembly; a waste water valve connected in series to the waste water pipe.
可选的，净水***还包括：第一转换控制阀，所述第一转换控制阀串联连接在所述 废水管上，所述第一转换控制阀位于所述废水阀与所述第五进出口之间；第二转换管，所述第二转换管分别连接所述第一转换管和所述废水管，所述第二转换管与所述废水管的连接点位于所述废水阀和所述第一转换控制阀之间，所述第二转换管与所述第一转换管的连接点位于所述增压泵和所述第二进出口之间。Optionally, the water purification system further includes: a first switching control valve, the first switching control valve is connected in series to the waste water pipe, the first switching control valve is located between the waste water valve and the fifth inlet Between outlets; a second conversion tube, the second conversion tube is connected to the first conversion tube and the waste water pipe, the connection point of the second conversion tube and the waste water pipe is located in the waste water valve and the Between the first switching control valve, the connection point of the second switching tube and the first switching tube is located between the booster pump and the second inlet and outlet.
可选的，净水***还包括：第二转换控制阀，所述第二转换控制阀串联连接在所述第一转换管上，所述第二转换控制阀位于所述第二转换管与第一转换管的连接点与所述第二进出口之间。Optionally, the water purification system further includes: a second switching control valve connected in series to the first switching tube, and the second switching control valve is located between the second switching tube and the second A connection point between a conversion tube and the second inlet and outlet.
可选的，净水***还包括：串联连接在所述纯水管上的高压开关，所述高压开关与所述增压泵电联接。Optionally, the water purification system further includes a high-pressure switch connected in series on the pure water pipe, and the high-pressure switch is electrically connected to the booster pump.
可选的，所述增压泵与所述第一转换控制阀电连接，且所述增压泵与所述第一转换控制阀同开同关。Optionally, the booster pump is electrically connected to the first switching control valve, and the booster pump and the first switching control valve are both open and closed.
可选的，净水***还包括：串联连接在所述纯水管上的第一单向阀。Optionally, the water purification system further includes: a first one-way valve connected in series on the pure water pipe.
可选的，净水***还包括：串联连接在所述废水管上的第二单向阀，所述第二单向阀位于所述第二转换管在所述废水管上的连接点与所述废水阀之间。Optionally, the water purification system further includes: a second one-way valve connected in series on the waste water pipe, the second one-way valve located on the connection point of the second conversion pipe on the waste water pipe and the Between the waste valves.
可选的，所述废水阀为可调废水阀，所述废水阀为累计制冲洗或待机冲洗。Optionally, the waste water valve is an adjustable waste water valve, and the waste water valve is cumulative flushing or standby flushing.
可选的，所述第一过滤件为无纺布、聚丙烯层、碳纤维卷制而成的卷筒，所述第二过滤件为碳筒。Optionally, the first filter element is a roll made of non-woven fabric, polypropylene layer, and carbon fiber, and the second filter element is a carbon tube.
可选的，所述第一过滤件外套在所述第二过滤件的外侧，所述第一过滤件和所述第二过滤件之间通过水路间隔筒间隔开，所述第一过滤件的外周侧形成所述第一均布流道，所述第一过滤件与所述水路间隔筒之间限定出所述第二均布流道，所述第二过滤件与所述水路间隔筒之间限定出所述第三均布流道，所述第二过滤件环绕的内腔构成所述第四均布流道。Optionally, the first filter element is coated on the outer side of the second filter element, and the first filter element and the second filter element are separated by a waterway spacer, the first filter element The first uniformly distributed flow channel is formed on the outer peripheral side, and the second uniformly distributed flow channel is defined between the first filter element and the waterway spacer, and the second filter element and the waterway spacer The third uniformly distributed flow channel is defined between them, and the inner cavity surrounded by the second filter element constitutes the fourth uniformly distributed flow channel.
可选的，所述第二过滤单元包括：反渗透膜元件，所述反渗透膜元件包括：中心管组和多个反渗透膜片袋，所述中心管组包括中心管和多个间隔开设置的废水管，多个所述废水管环绕所述中心管设置，所述中心管的管壁上设有过滤水入孔，所述废水管的管壁上设有废水入孔；所述反渗透膜片袋具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述中心管被至少一个所述反渗透膜片袋的第一部分隔开，多个所述反渗透膜片袋的所述第二部分形成围绕在所述中心管组的周围的多层薄膜组件；其中，从所述第四进出口进入所述第二过滤单元的水经所述反渗透膜片袋过滤后流向所述过滤水入孔，所述中心管的管腔构成所述过滤水流通腔，所述废水管的管腔构成所述废水流通腔，所述反渗透膜片袋构成所述过滤膜。Optionally, the second filtration unit includes: a reverse osmosis membrane element, the reverse osmosis membrane element includes: a central tube group and a plurality of reverse osmosis membrane sheet bags, the central tube group includes a central tube and a plurality of spaced apart A waste water pipe is provided, and a plurality of the waste water pipes are arranged around the central pipe. The wall of the central pipe is provided with a filtered water inlet hole, and the waste water pipe is provided with a waste water inlet hole; The permeable membrane bag has a first part located inside the central tube group and a second part located outside the central tube group, each of the waste water tube and the central tube is separated by at least one of the reverse osmosis membrane bag The first part is spaced apart, and the second parts of the plurality of reverse osmosis membrane sheet bags form a multi-layer membrane module surrounding the central tube group; wherein, the second inlet and outlet enter the second The water of the filtering unit is filtered by the reverse osmosis membrane bag and flows to the filtered water inlet hole. The lumen of the center tube constitutes the filtered water circulation cavity, and the lumen of the wastewater pipe constitutes the wastewater circulation cavity , The reverse osmosis membrane bag constitutes the filtration membrane
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明 显，或通过本申请的实践了解到。Additional aspects and advantages of the present application will be partially given in the following description, and some will become apparent from the following description, or be learned through the practice of the present application.
附图说明BRIEF DESCRIPTION
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
图1为本申请一个实施例的复合滤芯组件的总体结构示意图。FIG. 1 is a schematic diagram of the overall structure of a composite filter element assembly according to an embodiment of the present application.
图2为本申请一个实施例的复合滤芯组件的流道结构的总体结构示意图。2 is a schematic diagram of the overall structure of the flow channel structure of a composite filter element assembly according to an embodiment of the present application.
图3为图2的俯视结构示意图。FIG. 3 is a schematic top view of FIG. 2.
图4为图2的仰视结构示意图。4 is a schematic diagram of the bottom view of FIG. 2.
图5为本申请一个实施例的第三端盖的侧视结构示意图。FIG. 5 is a schematic structural side view of a third end cap according to an embodiment of the present application.
图6为本申请一个实施例的第三端盖的俯视图。6 is a top view of a third end cap according to an embodiment of the application.
图7为本申请一个实施例的第三端盖的仰视图。7 is a bottom view of a third end cap according to an embodiment of this application.
图8为本申请一个实施例的第四端盖的仰视图。8 is a bottom view of a fourth end cap according to an embodiment of the application.
图9为本申请一个实施例的第四端盖的俯视图。9 is a top view of a fourth end cap according to an embodiment of the application.
图10为本申请一个实施例的中心管和废水集管的立体结构示意图。FIG. 10 is a schematic diagram of a three-dimensional structure of a center pipe and a waste water header according to an embodiment of the present application.
图11为本申请一个实施例的一片反渗透过滤膜片袋和中心管、一个废水集管配合的俯视图。FIG. 11 is a plan view of a reverse osmosis filter membrane bag, a central tube, and a waste water collecting pipe according to an embodiment of the present application.
图12为本申请一个实施例中螺旋卷式反渗透膜元件的俯视图。12 is a top view of a spiral wound reverse osmosis membrane element in an embodiment of the present application.
图13为本申请第一个实施例的净水***的总体结构示意图。13 is a schematic diagram of the overall structure of the water purification system of the first embodiment of the present application.
图14为本申请第二个实施例的净水***正常过滤回流制水时的总体示意图。FIG. 14 is an overall schematic diagram of the water purification system of the second embodiment of the present application when normally filtering and returning water to make water.
图15为本申请第二个实施例的净水***冲洗废水阀时的总体示意图。FIG. 15 is an overall schematic diagram of the second embodiment of the present application when flushing a waste water valve with a water purification system.
图16为本申请两个实施例的净水***中的复合滤芯组件的总体结构示意图。16 is a schematic diagram of the overall structure of a composite filter element assembly in a water purification system according to two embodiments of this application.
图17为图16的俯视图。Fig. 17 is a top view of Fig. 16.
图18为图16的仰视图。Fig. 18 is a bottom view of Fig. 16.
附图标记：Reference mark:
复合滤芯组件1000；Composite filter element assembly 1000;
第一过滤单元100；The first filter unit 100;
第一过滤件10；第一均布流道11；第二均布流道12；第一过滤通道13；The first filter 10; the first uniform flow channel 11; the second uniform flow channel 12; the first filter channel 13;
第一进出口101；第二进出口102；The first import and export 101; the second import and export 102;
第二过滤件20；第三均布流道21；第四均布流道22；第二过滤通道23；过渡流道24； Second filter 20; third uniform flow channel 21; fourth uniform flow channel 22; second filter channel 23; transition flow channel 24;
第三进出口201；The third import and export 201;
第二过滤单元200；The second filter unit 200;
第三过滤件30；第五均布流道31；第三过滤通道32；中心管33；废水集管34；过滤膜35；The third filter 30; the fifth uniform flow channel 31; the third filter channel 32; the central tube 33; the waste water header 34; the filter membrane 35;
第五进出口301；第四进出口302；Fifth Import and Export 301; Fourth Import and Export 302;
第一内端盖41；第一外端盖42；第二内端盖43；第二外端盖44；第二中端盖45；水路间隔筒46；First inner end cap 41; first outer end cap 42; second inner end cap 43; second outer end cap 44; second middle end cap 45; waterway spacer 46;
第三端盖47；第二插管471；第三插管472；第一定位凸起473；第一装配定位结构474； Third end cap 47; second cannula 471; third cannula 472; first positioning protrusion 473; first assembly positioning structure 474;
第四端盖48；第四插管481；排废口482；第二定位凸起483；第二装配定位结构484； Fourth end cap 48; fourth cannula 481; waste discharge port 482; second positioning protrusion 483; second assembly positioning structure 484;
间隔支架49； Spacer bracket 49;
壳体300；壳体上盖310；壳体下盖320； Housing 300; housing upper cover 310; housing lower cover 320;
净水***2000； Water purification system 2000;
进水管400； Inlet pipe 400;
纯水管500；高压开关510；第一单向阀520； Pure water pipe 500; high pressure switch 510; first check valve 520;
废水管600；废水阀610；第一转换控制阀620；第二单向阀630； Waste water pipe 600; waste water valve 610; first switching control valve 620; second check valve 630;
第一转换管700；增压泵710；第二转换控制阀720；First switching tube 700; booster pump 710; second switching control valve 720;
第二转换管800；第三转换控制阀810；The second switching tube 800; the third switching control valve 810;
水龙头900。 Water tap 900.
具体实施方式detailed description
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.
下面参考附图来详细描述根据本申请实施例的本申请实施例的复合滤芯组件1000的流道结构。The flow channel structure of the composite filter element assembly 1000 according to an embodiment of the present application will be described in detail below with reference to the drawings.
根据本申请实施例的一种复合滤芯组件1000的流道结构，如图2所示，包括：沿轴向间隔开设置的第一过滤单元100和第二过滤单元200。A flow channel structure of a composite filter element assembly 1000 according to an embodiment of the present application, as shown in FIG. 2, includes: a first filter unit 100 and a second filter unit 200 spaced apart in the axial direction.
第一过滤单元100具有第一进出口101、第二进出口102和第三进出口201，第二过滤单元200具有第四进出口302，第一过滤单元100和第二过滤单元200之间设有过渡流道24。此处的第一过滤单元100和第二过滤单元200在轴向间隔开设置，并通过 过渡流道24连接，第一过滤单元100和第二过滤单元200配合紧凑，形成整体，且节省了部分外部的连接管道。The first filter unit 100 has a first inlet 101, a second inlet 102, and a third inlet 201, the second filter unit 200 has a fourth inlet 302, and a first filter unit 100 and a second filter unit 200 are provided between There is a transition channel 24. Here, the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction and are connected by the transition flow channel 24. The first filter unit 100 and the second filter unit 200 are compactly matched to form a whole and save part External connection pipes.
其中，第一过滤单元100内沿径向由外到内依次设置有第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22。The first filtering unit 100 is provided with a first uniform flow channel 11, a first filtering channel 13, a second uniform flow channel 12, a third uniform flow channel 21, a second The filter channel 23 and the fourth uniformly distributed flow channel 22.
第一过滤通道13内设有第一过滤件10，第二过滤通道23内设有第二过滤件20。此处，第一过滤件10和第二过滤件20两个净化水路，可增加第一过滤单元100的过滤性能，满足不同的水质出水效果要求。A first filter element 10 is provided in the first filter channel 13, and a second filter element 20 is provided in the second filter channel 23. Here, the two purified water paths of the first filter element 10 and the second filter element 20 can increase the filtration performance of the first filter unit 100 and meet different requirements of water quality water discharge effect.
第一均布流道11与第二均布流道12通过第一过滤通道13连通，第三均布流道21与第四均布流道22通过第二过滤通道23连通。此处，第一过滤通道13两边的均布流道中的一个可均布第一过滤件10过滤前的液体，另一个则可均布第一过滤件10过滤后的液体，第一过滤件10两边受压均匀。同样地，第二过滤通道23两边的均布流道中的一个可均布第二过滤件20过滤前的液体，另一个可均布第二过滤件20过滤后的液体，第二过滤件20两边受压均匀。The first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13, and the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with the second filter channel 23. Here, one of the uniform flow channels on both sides of the first filter channel 13 can evenly distribute the liquid before the first filter 10 is filtered, and the other can evenly distribute the liquid after the first filter 10 is filtered, the first filter 10 Both sides are evenly pressed. Similarly, one of the uniform flow channels on both sides of the second filter channel 23 can evenly distribute the liquid before the second filter 20 is filtered, and the other can evenly distribute the liquid after the second filter 20 is filtered, and both sides of the second filter 20 Even pressure.
第二均布流道12与第三均布流道21之间隔绝不流通。隔绝不流通的两个均布流道，使第一过滤单元100内两个相互独立的净化水路，工作时互不干扰。其中一个净化水路的出水可直接作为另一个净化水路的进水；其中一个净化水路的出水，也可以通到外部其他过滤组件过滤后，再作为另一个净化水路的进水。The second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21 are isolated and not in circulation. The two evenly distributed flow channels are isolated, so that the two independent purified water channels in the first filter unit 100 do not interfere with each other during operation. The effluent of one purified water channel can be directly used as the influent of another purified water channel; the effluent of one purified water channel can also be filtered by other external filtering components and then used as the inlet water of another purified water channel.
第一均布流道11连接第一进出口101，第二均布流道12连接第二进出口102。此处，第一进出口101如果作为第一过滤件10的液体进口，第二进出口102则作为第一过滤件10的液体出口；第一进出口101如果作为第一过滤件10的液体出口，第二进出口102则作为第一过滤件10的液体进口。The first uniform flow channel 11 is connected to the first inlet 101, and the second uniform flow channel 12 is connected to the second inlet 102. Here, if the first inlet 101 is used as the liquid inlet of the first filter 10, the second inlet 102 is used as the liquid outlet of the first filter 10; if the first inlet 101 is used as the liquid outlet of the first filter 10 The second inlet 102 serves as the liquid inlet of the first filter 10.
第三均布流道21和第四均布流道22中的一个连接第三进出口201，第三均布流道21和第四均布流道22中的另一个连接过渡流道24。此处，当第三均布流道21连接过渡流道24时，第四均布流道22则连接第三进出口201；当第三均布流道21连接第三进出口201时，第四均布流道22则连接过渡流道24。One of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the third inlet and outlet 201, and the other of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the transition flow channel 24. Here, when the third uniform distribution channel 21 is connected to the transition channel 24, the fourth uniform distribution channel 22 is connected to the third inlet 201; when the third uniform distribution channel 21 is connected to the third inlet 201, the first The four uniformly distributed flow channels 22 are connected to the transition flow channels 24.
第二过滤单元200内设有第三过滤件30。此处，第三过滤件30可进一步增加复合滤芯组件1000整体的过滤功能，提升出水的品质。The second filter unit 200 is provided with a third filter 30. Here, the third filter element 30 can further increase the overall filtering function of the composite filter element assembly 1000 to improve the quality of the water.
可以理解的是，第一过滤单元100内沿径向依次设有四个均布流道和两个过滤通道，以形成两个相互独立的净化水路，两个过滤通道内分别布置有过滤件。使得第一过滤单元100内的整体结构紧凑，且使得第一过滤单元100内集成了两道水质过滤环节，再加上第二过滤单元200内的一组过滤件，使得本申请的复合滤芯组件1000整体具有三道水质过滤环节。It can be understood that four uniformly distributed flow channels and two filter channels are sequentially arranged in the first filter unit 100 in the radial direction to form two mutually independent purified water channels, and filter elements are respectively arranged in the two filter channels. The overall structure of the first filter unit 100 is made compact, and two water quality filtration links are integrated in the first filter unit 100, and a set of filter elements in the second filter unit 200 makes the composite filter element assembly of the present application The whole 1000 has three water quality filtration links.
第一过滤单元100和第二过滤单元200在轴向间隔开设置，第二过滤件20两侧的其中一个均布流道通过过渡流道24连接第三过滤件30，两过滤单元(100，200)配合紧凑，节省了第三过滤件30过滤后的水在流向第二过滤件20过滤时所需要铺设的外部连接管道；或节省了第二过滤件20过滤后的水在流向第三过滤件30过滤时所需要铺设的外部连接管道。有利于复合滤芯组件1000减小整体尺寸，有利于简化外部管路的布置。The first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and one of the evenly distributed flow channels on both sides of the second filter element 20 is connected to the third filter element 30 through the transition flow channel 24. The two filter units (100, 200) With a compact fit, it saves the external connection pipes that the filtered water of the third filter 30 needs to lay when flowing to the second filter 20; or saves the filtered water of the second filter 20 when flowing to the third filter The external connection pipes required for the filtering of the piece 30. It is advantageous for the composite filter element assembly 1000 to reduce the overall size, and for simplifying the arrangement of external piping.
从第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22的布局位置来看，水流在穿过第一过滤件10和第二过滤件20时，大部分沿第一过滤单元100的径向穿过，穿过路径短、流通量大。而且径向穿过时对过滤件表面的杂质具有冲刷作用，水流更易冲开杂质后穿过过滤件。而每个过滤件在进出水时大部分水流基本沿轴向流动，这样不仅有利于水流均布，也有利于将冲刷下的杂质带到第一过滤单元100的轴向一端，避免杂质堵在过滤件表面。From the layout position of the first uniform flow channel 11, the first filter channel 13, the second uniform distribution channel 12, the third uniform distribution channel 21, the second filter channel 23, and the fourth uniform distribution channel 22, When passing through the first filter element 10 and the second filter element 20, most of the water flow passes in the radial direction of the first filter unit 100, and the passing path is short and the flow volume is large. In addition, it has a flushing effect on the impurities on the surface of the filter when passing radially, and the water flow is more likely to wash away the impurities and then pass through the filter. Most of the water flow of each filter element basically flows in the axial direction when entering and exiting the water, which is not only conducive to the uniform distribution of the water flow, but also helps to carry the washed impurities to the axial end of the first filter unit 100 to avoid the impurities from blocking Filter surface.
将第一过滤单元100和第二过滤单元200设置在同一个复合滤芯组件1000内，一体化程度高，有利于减小结构尺寸，当复合滤芯组件1000安装时只需要一套定位、安装结构，装配简单、省时。The first filter unit 100 and the second filter unit 200 are arranged in the same composite filter element assembly 1000, and the degree of integration is high, which is conducive to reducing the structural size. When the composite filter element assembly 1000 is installed, only one set of positioning and installation structure is required. Simple assembly and time saving.
在本申请的其他一些示例中，如图1所示，复合滤芯组件1000包括壳体300，壳体300的两端设有壳体上盖310、壳体下盖320。壳体300内沿着轴向长度形成了第一过滤单元100和第二过滤单元200。当需要更换第一过滤件10和第二过滤件20时，仅需将打开壳体上盖310，当需要更换第三过滤件30时，仅需要打开壳体下盖320。In some other examples of the present application, as shown in FIG. 1, the composite filter element assembly 1000 includes a housing 300, and a housing upper cover 310 and a housing lower cover 320 are provided at both ends of the housing 300. A first filter unit 100 and a second filter unit 200 are formed in the housing 300 along the axial length. When the first filter element 10 and the second filter element 20 need to be replaced, only the housing upper cover 310 needs to be opened, and when the third filter element 30 needs to be replaced, only the housing lower cover 320 needs to be opened.
在本申请的一些实施例中，如图2所示，第一过滤单元100内设有间隔支架49，间隔支架49设在第二均布流道12内。间隔支架49使第二均布流道12保持特定的宽度，以及特定的形状，保证了良好的流体流通性能。In some embodiments of the present application, as shown in FIG. 2, a spacer bracket 49 is provided in the first filter unit 100, and the spacer bracket 49 is provided in the second uniform flow channel 12. The spacing bracket 49 maintains the second uniform flow channel 12 with a specific width and a specific shape, ensuring good fluid circulation performance.
可选地，间隔支架49与第一过滤件10共同卷制而成。间隔支架49可保证第一过滤件10整体卷制的松紧度及强度。Optionally, the spacer bracket 49 is rolled together with the first filter 10. The spacing bracket 49 can ensure the tightness and strength of the entire rolled first filter element 10.
在本申请一些示例中，第一过滤件10为由无纺布、聚丙烯层、碳纤维卷制而成的卷筒。使用寿命较长。当用于自来水的过滤时，可初步去除泥沙、铁锈及余氯。当然，第一过滤件10也可以仅由其中一种或两种材料的滤层卷制而成，这里不做具体限制。In some examples of the present application, the first filter 10 is a roll made of non-woven fabric, polypropylene layer, and carbon fiber. Long service life. When used in the filtration of tap water, it can initially remove sediment, rust and residual chlorine. Of course, the first filter element 10 may also be formed by rolling only one or two materials of the filter layer, which is not specifically limited here.
在本申请一些示例中，第二过滤件20为中空的碳棒。可用于自来水的终滤，碳棒可滤除水体中异味、有机物、胶体、铁及余氯等，使第二过滤件20控制出水后的饮用水水质条件，改善口感。当然，第二过滤件20也可由活性炭颗粒、滤网及框架组合而成，不局限于碳棒的设置形式。另外，碳过滤介质，也可以更换成KDF55处理介质(高 纯铜/锌合金介质)，通过电化学反应去除水中的余氯、减少矿物结垢、减少氧化亚铁等悬浮固体物质、抑制微生物、去除重金属。In some examples of this application, the second filter 20 is a hollow carbon rod. It can be used for the final filtration of tap water. The carbon rod can filter out the odor, organic matter, colloid, iron and residual chlorine in the water body, so that the second filter 20 controls the drinking water quality conditions after the water is discharged, and improves the taste. Of course, the second filter 20 can also be formed by a combination of activated carbon particles, filter screens and frames, and is not limited to the arrangement of carbon rods. In addition, the carbon filter medium can also be replaced with KDF55 treatment medium (high purity copper / zinc alloy medium) to remove residual chlorine in water through electrochemical reaction, reduce mineral scaling, reduce suspended solids such as ferrous oxide, and inhibit microorganisms, Remove heavy metals.
在本申请的一些实施例中，如图2、图3、图4所示，第二过滤单元200具有第五进出口301。第二过滤单元200内设有过滤水流通腔和废水流通腔，过滤水流通腔和废水流通腔之间设有过滤膜35，过滤水流通腔连通过渡流道24，废水流通腔连通第五进出口301。此处的第五进出口301，为第二过滤单元200经过滤后产生的废水的排出口。相应地，第四进出口302则为第二过滤单元200的待过滤液体的进口。In some embodiments of the present application, as shown in FIGS. 2, 3 and 4, the second filter unit 200 has a fifth inlet and outlet 301. The second filter unit 200 is provided with a filtered water circulation cavity and a waste water circulation cavity, a filter membrane 35 is provided between the filtered water circulation cavity and the waste water circulation cavity, the filtered water circulation cavity is connected to the transition flow channel 24, and the waste water circulation cavity is connected to the fifth inlet Exit 301. The fifth inlet and outlet 301 here is the outlet of the waste water generated by the second filter unit 200 after being filtered. Correspondingly, the fourth inlet 302 is the inlet of the liquid to be filtered of the second filter unit 200.
这里，第三过滤件30包括过滤水流通腔和废水流通腔之间的过滤膜35。本申请限定有“第一”、“第二”、“第三”、“第四”、“第五”的特征可以明示或者隐含地包括一个或者更多个该特征，用于区别描述特征，无顺序之分，无轻重之分。Here, the third filter 30 includes a filter membrane 35 that filters the water circulation chamber and the waste water circulation chamber. This application is limited to "first", "second", "third", "fourth", "fifth" features can explicitly or implicitly include one or more of the features, used to distinguish the description of features , No order, no importance.
可选地，如图2所示，第二过滤单元200内沿径向由外到内依次设置有第五均布流道31、第三过滤通道32，第三过滤通道32环绕过滤水流通腔和废水流通腔设置，第三过滤通道32内设有第三过滤件30，废水流通腔与第五均布流道31通过第三过滤通道32连通，第五均布流道31连通第四进出口302。这里，从第四进出口302进入的液体，在第五均布流道31中进行分配和分布，均布在第三过滤件30的外侧，经过第三过滤件30过滤后，高盐度的废水则流向废水流通腔，并经由第五进出口301排出(如图4中所示)。Optionally, as shown in FIG. 2, a second uniformly distributed flow channel 31 and a third filter channel 32 are provided in this order from the outside to the inside of the second filter unit 200, and the third filter channel 32 surrounds the filtered water circulation cavity It is provided with the waste water circulation cavity. The third filter channel 32 is provided with a third filter element 30. The waste water circulation cavity and the fifth uniform distribution channel 31 communicate with each other through the third filter channel 32, and the fifth uniform distribution channel 31 communicates with the fourth inlet Exit 302. Here, the liquid entering from the fourth inlet and outlet 302 is distributed and distributed in the fifth uniform distribution channel 31, and is evenly distributed on the outer side of the third filter 30. After filtering through the third filter 30, the high salinity The waste water flows to the waste water circulation chamber and is discharged through the fifth inlet and outlet 301 (as shown in FIG. 4).
水流在穿过第三过滤件30时，大部分沿第二过滤单元200的径向穿过，穿过路径短、流通量大，而且径向穿过时对过滤膜35表面的杂质具有冲刷作用，水流更易冲开杂质后穿过过滤膜35。When the water flow passes through the third filter element 30, most of it passes in the radial direction of the second filter unit 200, the passing path is short, and the flow rate is large, and it has a scouring effect on the impurities on the surface of the filter membrane 35 when passing radially The water flow is easier to wash away impurities and pass through the filter membrane 35.
而第三过滤件30外侧的第五均布流道31的进出水、中心管33内侧进出水大部分水流基本沿轴向流动，这样不仅有利于水流均布，也有利于将第三过滤件30表面冲刷下的杂质带到第二过滤单元200的轴向一端，避免杂质堵在过滤表面。The inlet and outlet water of the fifth uniform distribution channel 31 outside the third filter 30 and the inlet and outlet water inside the central tube 33 mostly flow in the axial direction, which is not only conducive to the uniform distribution of the water flow, but also to the third filter The impurities washed by the surface are brought to the axial end of the second filter unit 200 to prevent the impurities from being blocked on the filter surface.
在一些实施例中，如图2、图6、图7、图8、图9所示，第二过滤单元200内设有中心管33和多个废水集管34，多个废水集管34环绕中心管33设置，中心管33的外周上设有过滤膜35，中心管33连通过渡流道24且管壁上设有过滤水入孔。中心管33外周上的过滤膜35为反渗透膜，仅可以通过盐度较小、水质较好的纯水。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。In some embodiments, as shown in FIG. 2, FIG. 6, FIG. 7, FIG. 8, and FIG. 9, the second filter unit 200 is provided with a central tube 33 and a plurality of wastewater headers 34, which are surrounded by a plurality of wastewater headers 34 The central tube 33 is provided. A filter membrane 35 is provided on the outer periphery of the central tube 33. The central tube 33 communicates with the transition channel 24 and a filtered water inlet hole is provided on the tube wall. The filter membrane 35 on the outer periphery of the central tube 33 is a reverse osmosis membrane, and can only pass pure water with a lower salinity and better water quality. In the description of this application, unless otherwise stated, the meaning of "plurality" is two or more.
在一些具体实施例中，如图10-图12所示，中心管33、多个废水集管34和过滤膜35构成螺旋卷式反渗透膜元件。中心管33的管腔构成上述过滤水流通腔，废水集管34 的管腔构成上述废水流通腔。In some specific embodiments, as shown in FIGS. 10-12, the central tube 33, a plurality of wastewater headers 34, and the filtration membrane 35 constitute a spiral wound reverse osmosis membrane element. The lumen of the center tube 33 constitutes the above-mentioned filtered water circulation cavity, and the lumen of the wastewater header 34 constitutes the above-mentioned wastewater circulation cavity.
过滤膜35为多组，过滤膜35为反渗透膜片袋，反渗透膜片袋具有第一部分和第二部分，每一废水集管34和中心管33被至少一个反渗透膜片袋的第一部分隔开，多个反渗透膜片袋的第二部分形成围绕在中心管33及多个废水集管34组成的管组的周围，形成多层薄膜组件。The filtration membrane 35 is a plurality of groups. The filtration membrane 35 is a reverse osmosis membrane bag. The reverse osmosis membrane bag has a first part and a second part. Each wastewater header 34 and central tube 33 are separated by at least one reverse osmosis membrane bag. A part is separated, and the second part of the plurality of reverse osmosis membrane bag is formed around the tube group composed of the central tube 33 and the plurality of waste water collecting pipes 34 to form a multi-layer membrane module.
从第四进出口302进入第二过滤单元200的水经反渗透膜片袋过滤后，沿反渗透膜片袋的第二部分朝向中心管33螺旋流动，流动的过程中水分子不断地渗透到反渗透膜片袋内，渗透到反渗透膜片袋内的纯净水也沿螺旋方向朝向中心管33流动。最终纯净水从流向中心管33的过滤水入孔，朝向过渡流道24流动。过滤后剩下的高盐度废水则流向废水集管34的管壁上的废水集孔，废水集管34与第五进出口301相连，从第五进出口301处排出废水。可选地，本申请的第三过滤件30为反渗透膜元件(RO膜元件)。The water that enters the second filter unit 200 from the fourth inlet and outlet 302 is filtered by the reverse osmosis membrane bag, and spirally flows along the second part of the reverse osmosis membrane bag toward the central tube 33. During the flow process, water molecules continuously permeate to In the reverse osmosis membrane bag, the purified water that has penetrated into the reverse osmosis membrane bag also flows toward the central tube 33 in the spiral direction. Finally, pure water flows from the filtered water inlet hole of the central tube 33 toward the transition flow channel 24. The high salinity wastewater remaining after the filtration flows to the wastewater collection hole on the wall of the wastewater header 34, which is connected to the fifth inlet 301 and discharges the wastewater from the fifth inlet 301. Optionally, the third filter 30 of the present application is a reverse osmosis membrane element (RO membrane element).
优选地，反渗透膜元件采用侧流节水膜，通过侧流进水，提高膜表面流速，保证纯水的高回收率，以及过滤膜35较长的使用寿命。Preferably, the reverse osmosis membrane element adopts a lateral flow water-saving membrane, and the lateral flow enters water to increase the flow rate of the membrane surface, ensure a high recovery rate of pure water, and a longer service life of the filtration membrane 35.
可选地，第三过滤件30也可为超滤膜组件，具体可选用市场上已有的超滤膜滤芯。超滤过滤以及反渗透过滤的原理和技术均为本领域技术人员所熟知的现有技术，在本申请中不再赘述。另外，当第三过滤件30采用上述过滤件时，需要对液体提前进行加压再泵入第四进出口302中。Optionally, the third filter element 30 may also be an ultrafiltration membrane module, specifically, an ultrafiltration membrane filter element available on the market may be used. The principles and techniques of ultrafiltration filtration and reverse osmosis filtration are all well-known technologies known to those skilled in the art, and will not be repeated in this application. In addition, when the third filter 30 uses the above filter, the liquid needs to be pressurized in advance and then pumped into the fourth inlet 302.
在本申请的一些实施例中，如图2所示，第四均布流道22为柱形，第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23为依次层套设置的环形。此处，第四均布流道22处于第一过滤单元100的中心，其为柱形。第四均布流道22的外侧套着一圈第二过滤通道23，第二过滤通道23的外侧套着一圈第三均布流道21，第三均布流道21的外侧套着一圈第二均布流道12，第二均布流道12的外侧套着一圈第一过滤通道13，第一过滤通道13的外侧套着一圈第一均布流道11。由此，每一层过滤件过滤面积都较大，过滤件布流均匀，第一过滤单元100整体布置紧凑、占用的安装空间少、集成度高。In some embodiments of the present application, as shown in FIG. 2, the fourth uniform flow channel 22 is cylindrical, the first uniform flow channel 11, the first filter channel 13, the second uniform flow channel 12, and the third The uniformly distributed flow channel 21 and the second filter channel 23 are ring-shaped arranged in layers. Here, the fourth uniform flow channel 22 is at the center of the first filter unit 100, which is cylindrical. A circle of the second filter channel 23 is sleeved on the outside of the fourth uniform flow channel 22, a circle of the third uniform flow channel 21 is sleeved on the outer side of the second filter channel 23, and a circle of the third uniform flow channel 21 is sleeved on the outside A circle of the second uniformly distributed flow channel 12 is enclosed. A circle of the first filter channel 13 is sheathed on the outside of the second uniformly distributed channel 12, and a circle of the first uniformly distributed channel 11 is sheathed on the outside of the first filter channel 13. As a result, the filter area of each layer of filter elements is large, the filter elements are evenly distributed, the first filter unit 100 has a compact overall layout, occupies less installation space, and has a high degree of integration.
在本申请的一些实施例中，如图2所示，第一过滤单元100内设有第一内端盖41，第一内端盖41封在第二过滤通道23和第四均布流道22的朝向第二过滤单元200的端面，以堵住第二均过滤通道23及第四均布流道22。这里说的第一内端盖41堵住第二均过滤通道23及第四均布流道22，指的是第一内端盖41封住了第二均过滤通道23及第四均布流道22的轴向端面，使第二均过滤通道23及第四均布流道22内的水不能从 朝向过渡流道24的轴向端面流出或者流入。下文提及到的某端盖堵住某过滤通道和某均布流道时，其含义也均是如此，后文将不再赘述。In some embodiments of the present application, as shown in FIG. 2, a first inner end cover 41 is provided in the first filter unit 100, and the first inner end cover 41 is sealed in the second filter channel 23 and the fourth uniform flow channel The end surface of 22 faces the second filtering unit 200 to block the second uniform filtering channel 23 and the fourth uniformly distributed flow channel 22. Here, the first inner end cover 41 blocks the second uniform filtering channel 23 and the fourth uniform distribution channel 22, which means that the first inner end cover 41 seals the second uniform filtering channel 23 and the fourth uniform distribution channel The axial end surface of the channel 22 prevents the water in the second uniform filtering channel 23 and the fourth uniform distribution channel 22 from flowing out or flowing in from the axial end surface toward the transition channel 24. When a certain end cover mentioned below blocks a certain filter channel and a uniformly distributed flow channel, the meanings are also the same, and will not be described in detail later.
在图2中，过渡流道24与第三均布流道21相连。第二过滤单元200中第三过滤件30中心管33中的液体可由过渡流道24与第一过滤单元100中第二过滤件20一侧的第三均布流道21中的液体相连。In FIG. 2, the transition flow channel 24 is connected to the third uniform flow channel 21. The liquid in the central tube 33 of the third filter 30 in the second filter unit 200 can be connected to the liquid in the third uniform flow channel 21 on the second filter 20 side of the first filter unit 100 by the transition channel 24.
有利地，第二过滤件20的两端分别与第二过滤通道23的端面平齐，由于第一内端盖41封闭了第二过滤通道23，则第一内端盖41同样封闭了第二过滤件20和第四均布流道22的底部，且为第二过滤件20提供了底部的支撑，有效地防止了第二过滤件20两侧的待净化的液体，和已经净化后的液体在底部相串，保证了第二过滤件20的过滤效果。可选地，第一内端盖41上设有伸入到第四均布流道22中的内凸缘，内凸缘的外周面与第二过滤件20的内周面接触。可选地，第一内端盖41的外周边设有外翻边，外翻边的内侧面与第二过滤件20的外周面接触。内凸缘和外翻边每一样的设置，都可增强第一内端盖41对第四均布流道22和第二过滤件20的端面的液体封挡效果；且能够形成对第一内端盖41和第二过滤件20的防呆配合，容易装配。Advantageously, the two ends of the second filter element 20 are flush with the end faces of the second filter channel 23 respectively. Since the first inner end cover 41 closes the second filter channel 23, the first inner end cover 41 also closes the second The bottom of the filter element 20 and the fourth uniform flow channel 22, and provides the bottom support for the second filter element 20, effectively preventing the liquid to be purified on both sides of the second filter element 20, and the liquid after purification It is connected at the bottom to ensure the filtering effect of the second filter 20. Optionally, the first inner end cover 41 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer circumferential surface of the inner flange contacts the inner circumferential surface of the second filter element 20. Optionally, the outer periphery of the first inner end cover 41 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the second filter 20. The same arrangement of the inner flange and the outer flange can enhance the liquid blocking effect of the first inner end cover 41 on the end surfaces of the fourth uniform flow channel 22 and the second filter element 20; The end cover 41 and the second filter element 20 have a foolproof fit, and are easy to assemble.
具体地，第二过滤件20的轴端端面胶粘在第一内端盖41上，这样不仅装配方便，而且便于一体芯的安装。可选地，第二过滤件20通过一圈热熔胶密封连接在第一内端盖41上。Specifically, the axial end surface of the second filter 20 is glued to the first inner end cover 41, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the second filter element 20 is sealingly connected to the first inner end cover 41 by a ring of hot melt adhesive.
在本申请的一些实施例中，如图2所示，第一过滤单元100内设有第一外端盖42和水路间隔筒46，第一外端盖42封在第一过滤通道13、第二均布流道12的朝向第二过滤单元200的端面，水路间隔筒46与第一外端盖42相连且间隔在第二均布流道12和第三均布流道21之间。如图2中，第一外端盖42封闭了第一过滤件10、第二均布流道12的底部，且为第一过滤件10提供了支撑，有效地防止了第一过滤件10两侧的待净化的液体和已经净化后的液体在底部相串，保证了第一过滤件10的过滤效果。水路间隔筒46将第二均布流道12和第三均布流道21产生可靠的分隔，避免第一过滤件10和第二过滤件20内的液体发生串流、避免各均布流道中的水质降低。In some embodiments of the present application, as shown in FIG. 2, the first filter unit 100 is provided with a first outer end cover 42 and a waterway spacer 46. The first outer end cover 42 is sealed in the first filter channel 13 and the second The end surface of the second uniform flow channel 12 facing the second filter unit 200, the waterway spacer 46 is connected to the first outer end cover 42 and is spaced between the second uniform flow channel 12 and the third uniform flow channel 21. As shown in FIG. 2, the first outer end cover 42 closes the bottoms of the first filter element 10 and the second uniform flow channel 12 and provides support for the first filter element 10, effectively preventing the first filter element 10 from The liquid to be purified on the side and the liquid that has been purified are connected in series at the bottom, ensuring the filtering effect of the first filter 10. The waterway spacer 46 produces a reliable separation of the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21, avoids cross-flow of the liquid in the first filter element 10 and the second filter element 20, and prevents each uniformly distributed flow channel The water quality is reduced.
可选地，水路间隔筒46与第一外端盖42为一体成型件。一体成型方便加工制造。一体成型后水路间隔筒46与第一外端盖42之间不易出现间隙，位置相对稳定。一体成型也方便装配，且保证长期使用后，第三均布流道21和第二均布流道12之间不易串流。而且形成整体件后对第一过滤件10、第二过滤件20都能起到良好的支撑作用。可选地，第一外端盖42中部向上凸出形成凸台，第一内端盖41悬置于凸台上方。即，第一内端盖41与凸台之间有一定间隙，使第三均布流道21与过渡流道24保持连通，使第二过 滤件20和第三过滤件30之间的净化水路串联。也就是说，第二过滤件20过滤后的水可经过渡流道24流向第三过滤件30，由第三过滤件30再次过滤；或者，第三过滤件30过滤后的水可经过渡流道24流向第二过滤件20，由第二过滤件20再次过滤。可选地，第一外端盖42将第一过滤单元100和第二过滤单元200在轴向上分隔开来，第一外端盖42在轴向方向设有过渡流道24。第一外端盖42使第一过滤件10、第二过滤件20和第三过滤件30在轴向上初步分开，且其上的过渡流道24使第二过滤件20和第三过滤件30之间形成串联关系。节省了第二过滤件20和第三过滤件30之间连接所需的外部管道。Optionally, the waterway spacer 46 and the first outer end cover 42 are an integrally formed piece. One-piece molding is convenient for processing and manufacturing. After the integral molding, the gap between the water channel spacer 46 and the first outer end cover 42 is less likely to occur, and the position is relatively stable. The one-piece molding is also convenient for assembly, and after long-term use, it is not easy for cross-flow between the third uniformly distributed flow channel 21 and the second uniformly distributed flow channel 12. Moreover, after forming an integral piece, the first filter element 10 and the second filter element 20 can play a good supporting role. Optionally, the middle of the first outer end cover 42 protrudes upward to form a boss, and the first inner end cover 41 is suspended above the boss. That is, there is a certain gap between the first inner end cover 41 and the boss, so that the third uniform flow channel 21 and the transition flow channel 24 are kept in communication, and the purified water path between the second filter 20 and the third filter 30 is maintained Tandem. In other words, the water filtered by the second filter 20 can flow to the third filter 30 through the transition channel 24, and then filtered again by the third filter 30; or, the water filtered by the third filter 30 can pass the transition flow The channel 24 flows to the second filter element 20, where it is filtered again. Optionally, the first outer end cover 42 separates the first filter unit 100 and the second filter unit 200 in the axial direction, and the first outer end cover 42 is provided with a transition flow channel 24 in the axial direction. The first outer end cap 42 makes the first filter element 10, the second filter element 20, and the third filter element 30 separate in the axial direction, and the transition flow channel 24 thereon makes the second filter element 20 and the third filter element Form a series relationship between 30. The external piping required for the connection between the second filter element 20 and the third filter element 30 is saved.
可选地，第一外端盖42的外周边设有外翻边，外翻边的内侧面与第一过滤件10的外周面接触。外翻边外套在第一外端盖42的中部凸台的外侧，外翻边与中部凸台的两侧阻挡，可增强第一外端盖42对第一过滤件10的端面的液体封挡效果；且能够形成对第一过滤件10的防呆配合，容易装配。Optionally, the outer periphery of the first outer end cover 42 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the first filter 10. The outer burring jacket is on the outside of the middle boss of the first outer end cover 42. The outer burring blocks both sides of the middle boss, which can enhance the liquid blocking of the first outer end cover 42 from the end surface of the first filter 10 Effect; and can form a foolproof first filter 10, easy to assemble.
具体地，第一过滤件10的轴端端面胶粘在第一外端盖42上，这样不仅装配方便，而且便于一体芯的安装。可选地，第一过滤件10通过一圈热熔胶密封连接在第一外端盖42上。Specifically, the end surface of the first filter element 10 is glued to the first outer end cover 42, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the first filter element 10 is sealingly connected to the first outer end cover 42 by a ring of hot melt adhesive.
可选地，第一内端盖41与第一外端盖42之间的缝隙较小，第一内端盖41在受到朝向第一外端盖42的作用力时与第一外端盖42相接触，当过渡流道24进水挤开第一内端盖41时，缝隙变大，水路流通更加畅通。将第一内端盖41设置成与第一外端盖42小距离的悬置设计，能使水流在经第二过滤件20时水压能达到微妙的平衡。即当第四均布流道22内水压大于过渡流道24处水压时，第一内端盖41能够暂时封住过渡流道24。Optionally, the gap between the first inner end cover 41 and the first outer end cover 42 is small, and the first inner end cover 41 is in contact with the first outer end cover 42 when subjected to a force toward the first outer end cover 42 In contact, when the transition flow channel 24 enters the water and squeezes the first inner end cover 41, the gap becomes larger, and the water flow is more smooth. The first inner end cover 41 is arranged in a suspension design at a small distance from the first outer end cover 42, so that the water pressure can reach a delicate balance when the water flows through the second filter 20. That is, when the water pressure in the fourth uniform flow channel 22 is greater than the water pressure at the transition channel 24, the first inner end cover 41 can temporarily seal the transition channel 24.
在本申请的一些实施例中，如图2所示，第一过滤单元100内设有第二内端盖43和第二外端盖44，第二外端盖44封在第一过滤通道13的远离第二过滤单元200的端面，第二内端盖43封在第二过滤通道23的远离第二过滤单元200的端面。In some embodiments of the present application, as shown in FIG. 2, a second inner end cap 43 and a second outer end cap 44 are provided in the first filter unit 100, and the second outer end cap 44 is sealed in the first filter channel 13 The second inner end cap 43 is sealed on the end surface of the second filter channel 23 that is away from the second filter unit 200.
这里，第二内端盖43封闭了第二过滤通道23的顶部，且为第二过滤件20提供了顶部的连接，为第三进出口201提供了走向，有效地防止了第二过滤件20两侧的待净化的液体，和已经净化后的液体在顶部相串，进一步保证了第二过滤件20的过滤效果。经第二过滤组件20过滤后的流体聚集在第四均布流道22中，可由第三进出口201向外排出。Here, the second inner end cover 43 closes the top of the second filter channel 23, and provides the top connection for the second filter element 20, provides a direction for the third inlet and outlet 201, and effectively prevents the second filter element 20 The liquid to be purified on both sides is in series with the liquid after purification on the top, which further ensures the filtering effect of the second filter 20. The fluid filtered by the second filter assembly 20 collects in the fourth uniform flow channel 22 and can be discharged outward from the third inlet 201.
相应地，第二外端盖44封闭了第一过滤通道13、第二均布流道12的顶部，且为第一过滤通道13中的第一过滤件10提供了连接，为第一进出口101、第二进出口102进 行了分隔，有效地防止了第一过滤件10两侧的待净化的液体和已经净化后的液体在顶部相串，进一步保证了第一过滤件10的过滤效果。Correspondingly, the second outer end cover 44 closes the tops of the first filter channel 13 and the second uniform flow channel 12, and provides a connection for the first filter element 10 in the first filter channel 13 to provide the first inlet and outlet 101. The second inlet and outlet 102 are separated, which effectively prevents the liquid to be purified on both sides of the first filter element 10 and the purified liquid from intersecting at the top, further ensuring the filtering effect of the first filter element 10.
可选地，第二内端盖43的周边设有向下的外翻边，外翻边的内侧面与第二过滤件20的外周面接触。第二内端盖43上设有伸入到第四均布流道22中的内凸缘，内凸缘的外周面与第二过滤件20的内周面接触。内凸缘和外翻边每一样的设置，使第二内端盖43与第二过滤件20之间的连接更为紧密，增加连接的可靠性。且都可增强第二内端盖43对第二过滤件20的端面的液体封挡效果，且能够形成对第二内端盖43的防呆配合，容易装配。Optionally, the periphery of the second inner end cover 43 is provided with a downward burring, and the inner side of the burring is in contact with the outer peripheral surface of the second filter 20. The second inner end cover 43 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer peripheral surface of the inner flange contacts the inner peripheral surface of the second filter 20. The same arrangement of the inner flange and the outer flange makes the connection between the second inner end cap 43 and the second filter element 20 tighter and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second inner end cover 43 on the end surface of the second filter 20, and can form a foolproof fit for the second inner end cover 43, which is easy to assemble.
具体地，第二过滤件20的轴端端面胶粘在第二内端盖43上，这样不仅装配方便，而且便于一体芯的安装。可选地，第二过滤件20通过一圈热熔胶密封连接在第二内端盖43上。Specifically, the axial end surface of the second filter element 20 is glued to the second inner end cover 43, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the second filter element 20 is sealingly connected to the second inner end cover 43 by a ring of hot melt adhesive.
有利地，第二外端盖44配合在第一过滤件10的远离过渡流道24的轴向端面上，以堵住第一过滤件10。Advantageously, the second outer end cap 44 is fitted on the axial end surface of the first filter element 10 away from the transition channel 24 to block the first filter element 10.
可选地，第二外端盖44的周边设有向下的外翻边，外翻边的内侧面与第一过滤件10的外周面接触。外翻边的设置，使第二外端盖44与第一过滤件10之间的连接更为紧密，增加连接的可靠性。且都可增强第二外端盖44对第一过滤件10的端面的液体封挡效果，且能够形成对第一过滤件10的防呆配合，容易装配。Optionally, the periphery of the second outer end cover 44 is provided with a downward burring edge, and the inner side of the burring edge is in contact with the outer circumferential surface of the first filter 10. The setting of the outer flange makes the connection between the second outer end cover 44 and the first filter element 10 tighter, and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second outer end cover 44 on the end surface of the first filter 10, and can form a foolproof fit for the first filter 10, which is easy to assemble.
具体地，第一过滤件10的轴端端面胶粘在第二外端盖44上，这样不仅装配方便，而且便于一体芯的安装。可选地，第一过滤件10通过一圈热熔胶密封连接在第二外端盖44上。Specifically, the axial end surface of the first filter element 10 is glued to the second outer end cover 44, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the first filter element 10 is sealingly connected to the second outer end cover 44 by a ring of hot melt adhesive.
可选地，第二外端盖44套在第二内端盖43的外侧，第二外端盖44和第二内端盖43之间还套有第二中端盖45，第二中端盖45和第二外端盖44之间的流路连通第二进出口102。第二中端盖45对第一过滤单元100上部起到了进一步的密封，将第二均布流道12和第三均布流道21进一步分隔开来，也有利于第二进出口102和第三进出口201的分隔布置。Optionally, the second outer end cap 44 is sleeved on the outer side of the second inner end cap 43, and a second middle end cap 45 and a second middle end are also sleeved between the second outer end cap 44 and the second inner end cap 43 The flow path between the cover 45 and the second outer end cover 44 communicates with the second inlet and outlet 102. The second middle end cap 45 further seals the upper part of the first filter unit 100, further separating the second uniform flow channel 12 and the third uniform flow channel 21, which is also beneficial to the second inlet 102 and The partition arrangement of the third inlet 201.
设置第二中端盖45，而不是将第二中端盖45与水路间隔筒46一体成型，一方面是利于开模，另一方面是装配需要，提高整体装配的可靠性。Providing the second middle end cap 45 instead of integrally forming the second middle end cap 45 and the waterway spacer 46 is advantageous for mold opening on the one hand, and assembly needs on the other hand, improving the reliability of the overall assembly.
在本申请实施例中，也可以不设置第二中端盖45，这样水路间隔筒46可以直接与第二内端盖43相连，这样节省零件数量。但是由于第二过滤件20要装配到水路间隔筒46的内侧，水路间隔筒46开口小了则装不进去，水路间隔筒46开口大了则会影响第二外端盖44与第一过滤件10的装配，整体装配难度加大。In the embodiment of the present application, the second middle end cap 45 may not be provided, so that the waterway spacer 46 can be directly connected to the second inner end cap 43, which saves the number of parts. However, since the second filter 20 is to be assembled to the inside of the water channel spacer 46, the opening of the water channel spacer 46 is too small to fit in, and the large opening of the water channel spacer 46 will affect the second outer end cap 44 and the first filter The assembly of 10 makes the overall assembly more difficult.
因此这里提出设置第二中端盖45，装配时先将第二过滤件20等零件装入水路间隔 筒46内，然后再将第二中端盖45连接在水路间隔筒46上，则满足装配需要，提高整体装配的可靠性。另一方面，当水路间隔筒46与第一外端盖42一体成型时，可利用一体注塑方式制造，此时为方便开模，不宜一体注塑出第二中端盖45。Therefore, it is proposed to provide a second middle end cap 45. When assembling, first install the second filter 20 and other parts into the waterway spacer 46, and then connect the second middle end cap 45 to the waterway spacer 46, then the assembly is satisfied Need to improve the reliability of the overall assembly. On the other hand, when the waterway spacer 46 is integrally formed with the first outer end cap 42, it can be manufactured by an integral injection method. At this time, it is not convenient to integrally inject the second middle end cap 45 to facilitate mold opening.
可选地，第二中端盖45、第二内端盖43、第二外端盖44的顶部平齐。有利于壳体上盖310对第一过滤单元100的盖封，方便装配。Optionally, the tops of the second middle end cap 45, the second inner end cap 43, and the second outer end cap 44 are flush. It is advantageous for sealing the first filter unit 100 by the upper cover 310 of the casing, and is convenient for assembly.
在图2的示例中，第二中端盖45与第二外端盖44之间的距离较小，能使水流在经第一过滤件10时水压能达到微妙的平衡。即当水路间隔筒46内侧水压大于外侧水压时，第二中端盖45可能被挤在第二外端盖44上，减缓第一过滤件10的过滤速度。当正常运转时，水流挤开第二中端盖45，正常朝向第二进出口102流动。In the example of FIG. 2, the distance between the second middle end cap 45 and the second outer end cap 44 is small, so that the water pressure can reach a delicate balance when the water flows through the first filter 10. That is, when the water pressure inside the water channel spacer 46 is greater than the outside water pressure, the second middle end cap 45 may be squeezed on the second outer end cap 44 to slow down the filtering speed of the first filter 10. During normal operation, the water flow squeezes away the second middle end cap 45 and normally flows toward the second inlet and outlet 102.
在一些具体示例中，第一过滤单元100内所有零件预先装配成一体件，即将第一过滤件10、第二过滤件20、第一内端盖41、第一外端盖42、第二内端盖43、第二外端盖44、第二中端盖45预先连接成一体成前后置一体化滤芯。甚至密封圈，也可以预先装配。In some specific examples, all parts in the first filter unit 100 are pre-assembled into an integral piece, that is, the first filter element 10, the second filter element 20, the first inner end cap 41, the first outer end cap 42, the second inner The end cap 43, the second outer end cap 44, and the second middle end cap 45 are pre-connected to be integrated into a front and rear integrated filter element. Even the sealing ring can be pre-assembled.
这样的前后置一体化滤芯，在装配时可直接插在壳体300内的隔板和壳体上盖310之间，整机装配过程得到了大大简化。而且如果壳体上盖310是可拆卸连接在瓶体上的，那用户在使用后，也可以自行更换前后置一体化滤芯，而且用户自己更换时的操作步骤也非常容易，提高了用户的换芯体验、减小了换芯成本。Such a front-rear integrated filter element can be directly inserted between the partition plate in the casing 300 and the upper cover 310 of the casing during assembly, and the assembly process of the whole machine is greatly simplified. Moreover, if the upper cover 310 of the casing is detachably connected to the bottle body, the user can also replace the front and rear integrated filter elements after use, and the operation steps when the user replaces it are also very easy, which improves the user's replacement. Core experience, reducing the cost of core replacement.
在本申请的一些实施例中，如图2、图5、图6、图7、图8、图9所示，复合滤芯组件1000的流道结构还包括：第三端盖47和第四端盖48，第三端盖47封在第三过滤通道32和废水流通腔的朝向第一过滤单元100的一端，第四端盖48封在第三过滤通道32和过滤水流通腔的远离第一过滤单元100的一端。第三端盖47和第四端盖48为第三过滤件30及中心管33、废水集管34提供了限位安装。In some embodiments of the present application, as shown in FIGS. 2, 5, 6, 7, 8, and 9, the flow channel structure of the composite filter element assembly 1000 further includes: a third end cap 47 and a fourth end The cover 48 and the third end cap 47 are sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the first end of the filtered water circulation cavity away from the first One end of the filter unit 100. The third end cap 47 and the fourth end cap 48 provide limit installation for the third filter 30, the central pipe 33, and the waste water header 34.
这里，第三端盖47封闭了第三过滤件30和废水流通腔的顶部，且为第三过滤件30提供了顶部的连接，有效地防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在顶部相串；第四端盖48封闭了第三过滤件30和过滤水流通腔的底部，且为第三过滤件30提供了底部的密封和支撑，有效地防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在底部相串，保证了第三过滤件30的过滤效果。Here, the third end cap 47 closes the top of the third filter 30 and the waste water circulation cavity, and provides the top connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 It is connected with the purified liquid at the top; the fourth end cap 48 closes the bottom of the third filter element 30 and the filtered water circulation cavity, and provides the bottom seal and support for the third filter element 30, which effectively prevents The liquid to be purified on both sides of the third filter 30 and the liquid after purification are connected at the bottom to ensure the filtering effect of the third filter 30.
具体地，如图2、图5、图6、图7所示，第三端盖47的两端设有相通的第二插管471和第三插管472，第二插管471插接在过渡流道24内，第三插管472与中心管33相连。这里，第三端盖47封闭了第三过滤件30的顶部，且为第三过滤件30提供了顶部的支撑连接，有效防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在 顶部相串。Specifically, as shown in FIG. 2, FIG. 5, FIG. 6, and FIG. 7, both ends of the third end cap 47 are provided with a second cannula 471 and a third cannula 472 that communicate with each other. In the transition channel 24, the third insertion tube 472 is connected to the center tube 33. Here, the third end cap 47 closes the top of the third filter 30 and provides a top support connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 and the Liquids are tandem at the top.
其中，第三端盖47通过第二插管471插接在过渡流道24内，一方面便于密封，防止第二过滤单元200内高压水未经第三过滤件30过滤就流向过渡流道24，另一方面利用过渡流道24定位，提高定位精度的同时还能降低装配难度。Among them, the third end cap 47 is inserted into the transition flow channel 24 through the second insertion tube 471, on the one hand, it is convenient to seal, and prevents the high-pressure water in the second filtration unit 200 from flowing to the transition flow channel 24 without being filtered by the third filter 30 On the other hand, the use of the transition runner 24 for positioning improves positioning accuracy while reducing assembly difficulty.
第三端盖47通过第三插管472插接在中心管33上，一方面利用第三插管472与中心管33管壁之间的面接触实现密封，另一方面方便中心管33的定位与安装，防止长期使用后中心管33歪斜、漏水。The third end cap 47 is inserted into the central tube 33 through the third insertion tube 472. On the one hand, the surface contact between the third insertion tube 472 and the wall of the central tube 33 is used to achieve sealing, and on the other hand, the positioning of the central tube 33 is facilitated. With the installation, the center tube 33 is prevented from skewing and leaking after long-term use.
另外，如图7所示，第三端盖47上设有第一定位凸起473，第一定位凸起473与废水集管34对应设置，废水集管34的一端插在第一定位凸起473上，此第一定位凸起473具有一定的防呆配合功能，方便第三端盖47与废水集管34定位安装，防止长期使用后废水集管34歪斜。In addition, as shown in FIG. 7, the third end cap 47 is provided with a first positioning protrusion 473, which is corresponding to the wastewater header 34, and one end of the wastewater header 34 is inserted in the first positioning protrusion On the 473, the first positioning protrusion 473 has a certain foolproof coordination function, which is convenient for the positioning and installation of the third end cap 47 and the waste water header 34, and prevents the waste water header 34 from skewing after long-term use.
可选地，如图6、图7所示，第三端盖47的周壁上设有第一装配定位结构474，多个第一装配定位结构474沿周向间隔开设置，多个第一装配定位结构474止抵在壳体300的内壁上，提高第三过滤件30在第二过滤单元200内的对中度，避免第三过滤件30整体歪斜导致无法在过渡流道24处良好配合。Optionally, as shown in FIGS. 6 and 7, a first assembly positioning structure 474 is provided on the peripheral wall of the third end cap 47, and a plurality of first assembly positioning structures 474 are spaced apart in the circumferential direction, and a plurality of first assemblies The positioning structure 474 abuts against the inner wall of the housing 300 to increase the centering of the third filter 30 in the second filter unit 200, and to prevent the third filter 30 from being skewed as a whole to prevent the transition channel 24 from fitting well.
有利地，第二插管471与过渡流道24之间设有密封圈。Advantageously, a sealing ring is provided between the second cannula 471 and the transition flow channel 24.
具体地，如图8、图9所示，第四端盖48上设有第四插管481，第四端盖48上设有分别与废水集管34、第五进出口301相连的排废口482。Specifically, as shown in FIGS. 8 and 9, the fourth end cap 48 is provided with a fourth insertion tube 481, and the fourth end cap 48 is provided with waste discharges connected to the wastewater header 34 and the fifth inlet 301 respectively Mouth 482.
另外，如图9所示，第四端盖48的中部凸出设有第二定位凸起483，第二定位凸起483与中心管33对应设置，中心管33的一端插在第二定位凸起483上，此第二定位凸起483具有封堵功能，也具有一定的防呆配合功能，方便第四端盖48与中心管33定位安装，防止长期使用时中心管33歪斜，且可封闭中心管33下部，防止中心管33中的液体流出。In addition, as shown in FIG. 9, a second positioning protrusion 483 is protruded from the middle of the fourth end cover 48. The second positioning protrusion 483 is corresponding to the central tube 33, and one end of the central tube 33 is inserted into the second positioning protrusion From 483, the second positioning protrusion 483 has a blocking function, and also has a certain foolproof coordination function, which facilitates the positioning and installation of the fourth end cap 48 and the central tube 33, prevents the central tube 33 from skewing and can be closed during long-term use The lower portion of the center tube 33 prevents the liquid in the center tube 33 from flowing out.
可选地，如图8、图9所示，第四端盖48的周壁上设有第二装配定位结构484，多个第二装配定位结构484沿周向间隔开设置，多个第二装配定位结构484止抵在壳体300的内壁上，提高第三过滤件30在第二过滤单元200内的对中度，避免第三过滤件30整体歪斜导致无法在与第五进出口301连接的接管处良好配合。Optionally, as shown in FIGS. 8 and 9, a second assembly positioning structure 484 is provided on the peripheral wall of the fourth end cap 48, a plurality of second assembly positioning structures 484 are spaced apart along the circumferential direction, and a plurality of second assemblies The positioning structure 484 stops against the inner wall of the housing 300 to improve the alignment of the third filter element 30 in the second filter unit 200, and to prevent the third filter element 30 from being skewed as a whole Good coordination at the takeover.
下面参考图5-图18描述本申请实施例的复合滤芯组件1000的结构。The structure of the composite filter element assembly 1000 of the embodiment of the present application will be described below with reference to FIGS. 5-18.
根据本申请实施例的一种复合滤芯组件1000，如图16所示，复合滤芯组件1000的壳体300内设有沿轴向间隔开设置的第一过滤单元100和第二过滤单元200。According to a composite filter element assembly 1000 according to an embodiment of the present application, as shown in FIG. 16, the housing 300 of the composite filter element assembly 1000 is provided with a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction.
第一过滤单元100具有第一进出口101、第二进出口102和第三进出口201，第二过滤单元200具有第四进出口302，第一过滤单元100和第二过滤单元200之间设有过渡流道24。此处的第一过滤单元100和第二过滤单元200在轴向间隔开设置，并通过过渡流道24连接，第一过滤单元100和第二过滤单元200配合紧凑，形成整体，且节省了部分外部的连接管道。The first filter unit 100 has a first inlet 101, a second inlet 102, and a third inlet 201, the second filter unit 200 has a fourth inlet 302, and a first filter unit 100 and a second filter unit 200 are provided between There is a transition channel 24. Here, the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction and are connected by the transition flow channel 24. The first filter unit 100 and the second filter unit 200 are compactly matched to form a whole and save part External connection pipes.
其中，第一过滤单元100内沿径向由外到内依次设置有第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22。The first filtering unit 100 is provided with a first uniform flow channel 11, a first filtering channel 13, a second uniform flow channel 12, a third uniform flow channel 21, a second The filter channel 23 and the fourth uniformly distributed flow channel 22.
第一过滤通道13内设有第一过滤件10，第二过滤通道23内设有第二过滤件20。此处，第一过滤件10和第二过滤件20两个净化水路，可增加第一过滤单元100的过滤性能，满足不同的水质出水效果要求。A first filter element 10 is provided in the first filter channel 13, and a second filter element 20 is provided in the second filter channel 23. Here, the two purified water paths of the first filter element 10 and the second filter element 20 can increase the filtration performance of the first filter unit 100 and meet different requirements of water quality water discharge effect.
第一均布流道11与第二均布流道12通过第一过滤通道13连通，第三均布流道21与第四均布流道22通过第二过滤通道23连通。此处，第一过滤通道13两边的均布流道中的一个可均布第一过滤件10过滤前的液体，另一个则可均布第一过滤件10过滤后的液体，第一过滤件10两边受压均匀。同样地，第二过滤通道23两边的均布流道中的一个可均布第二过滤件20过滤前的液体，另一个可均布第二过滤件20过滤后的液体，第二过滤件20两边受压均匀。The first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13, and the third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with the second filter channel 23. Here, one of the uniform flow channels on both sides of the first filter channel 13 can evenly distribute the liquid before the first filter 10 is filtered, and the other can evenly distribute the liquid after the first filter 10 is filtered, the first filter 10 Both sides are evenly pressed. Similarly, one of the uniform flow channels on both sides of the second filter channel 23 can evenly distribute the liquid before the second filter 20 is filtered, and the other can evenly distribute the liquid after the second filter 20 is filtered, and both sides of the second filter 20 Even pressure.
第二均布流道12与第三均布流道21之间隔绝不流通。隔绝不流通的两个均布流道，使第一过滤单元100内两个相互独立的净化水路，工作时互不干扰。其中一个净化水路的出水可直接作为另一个净化水路的进水；其中一个净化水路的出水，也可以通到外部其他过滤组件过滤后，再作为另一个净化水路的进水。The second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21 are isolated and not in circulation. The two evenly distributed flow channels are isolated, so that the two independent purified water channels in the first filter unit 100 do not interfere with each other during operation. The effluent of one purified water channel can be directly used as the influent of another purified water channel; the effluent of one purified water channel can also be filtered by other external filtering components and then used as the inlet water of another purified water channel.
第一均布流道11连接第一进出口101，第二均布流道12连接第二进出口102。此处，第一进出口101如果作为第一过滤件10的液体进口，第二进出口102则作为第一过滤件10的液体出口；第一进出口101如果作为第一过滤件10的液体出口，第二进出口102则作为第一过滤件10的液体进口。The first uniform flow channel 11 is connected to the first inlet 101, and the second uniform flow channel 12 is connected to the second inlet 102. Here, if the first inlet 101 is used as the liquid inlet of the first filter 10, the second inlet 102 is used as the liquid outlet of the first filter 10; if the first inlet 101 is used as the liquid outlet of the first filter 10 The second inlet 102 serves as the liquid inlet of the first filter 10.
第三均布流道21和第四均布流道22中的一个连接第三进出口201，第三均布流道21和第四均布流道22中的另一个连接过渡流道24。此处，当第三均布流道21连接过渡流道24时，第四均布流道22则连接第三进出口201；当第三均布流道21连接第三进出口201时，第四均布流道22则连接过渡流道24。One of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the third inlet and outlet 201, and the other of the third uniform flow channel 21 and the fourth uniform flow channel 22 is connected to the transition flow channel 24. Here, when the third uniform distribution channel 21 is connected to the transition channel 24, the fourth uniform distribution channel 22 is connected to the third inlet 201; when the third uniform distribution channel 21 is connected to the third inlet 201, the first The four uniformly distributed flow channels 22 are connected to the transition flow channels 24.
第二过滤单元200内设有第三过滤件30。此处，第三过滤件30可进一步增加复合滤芯组件1000整体的过滤功能，提升出水的品质。The second filter unit 200 is provided with a third filter 30. Here, the third filter element 30 can further increase the overall filtering function of the composite filter element assembly 1000 to improve the quality of the water.
可以理解的是，第一过滤单元100内沿径向依次设有四个均布流道和两个过滤通道，以形成两个相互独立的净化水路，两个过滤通道内分别布置有过滤件。使得第一过滤单 元100内的整体结构紧凑，且使得第一过滤单元100内集成了两道水质过滤环节，再加上第二过滤单元200内的一组过滤件，使得本申请的复合滤芯组件1000整体具有三道水质过滤环节。It can be understood that four uniformly distributed flow channels and two filter channels are sequentially arranged in the first filter unit 100 in the radial direction to form two mutually independent purified water channels, and filter elements are respectively arranged in the two filter channels. The overall structure of the first filter unit 100 is made compact, and two water quality filtration links are integrated in the first filter unit 100, and a set of filter elements in the second filter unit 200 makes the composite filter element assembly of the present application The whole 1000 has three water quality filtration links.
第一过滤单元100和第二过滤单元200在轴向间隔开设置，第二过滤件20两侧的其中一个均布流道通过过渡流道24连接第三过滤件30，两过滤单元(100，200)配合紧凑，节省了第三过滤件30过滤后的水在流向第二过滤件20过滤时所需要铺设的外部连接管道；或节省了第二过滤件20过滤后的水在流向第三过滤件30过滤时所需要铺设的外部连接管道。有利于复合滤芯组件1000减小整体尺寸，有利于简化外部管路的布置。The first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and one of the evenly distributed flow channels on both sides of the second filter element 20 is connected to the third filter element 30 through the transition flow channel 24. The two filter units (100, 200) With a compact fit, it saves the external connection pipes that the filtered water of the third filter 30 needs to lay when flowing to the second filter 20; or saves the filtered water of the second filter 20 when flowing to the third filter The external connection pipes required for the filtering of the piece 30. It is advantageous for the composite filter element assembly 1000 to reduce the overall size, and for simplifying the arrangement of external piping.
从第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22的布局位置来看，水流在穿过第一过滤件10和第二过滤件20时，大部分沿第一过滤单元100的径向穿过，穿过路径短、流通量大。而且径向穿过时对过滤件表面的杂质具有冲刷作用，水流更易冲开杂质后穿过过滤件。而每个过滤件在进出水时大部分水流基本沿轴向流动，这样不仅有利于水流均布，也有利于将冲刷下的杂质带到第一过滤单元100的轴向一端，避免杂质堵在过滤件表面。From the layout position of the first uniform flow channel 11, the first filter channel 13, the second uniform distribution channel 12, the third uniform distribution channel 21, the second filter channel 23, and the fourth uniform distribution channel 22, When passing through the first filter element 10 and the second filter element 20, most of the water flow passes in the radial direction of the first filter unit 100, and the passing path is short and the flow volume is large. In addition, it has a flushing effect on the impurities on the surface of the filter when passing radially, and the water flow is more likely to wash away the impurities and then pass through the filter. Most of the water flow of each filter element basically flows in the axial direction when entering and exiting the water, which is not only conducive to the uniform distribution of the water flow, but also helps to carry the washed impurities to the axial end of the first filter unit 100 to avoid the impurities from blocking Filter surface.
将第一过滤单元100和第二过滤单元200设置在同一个复合滤芯组件1000内，一体化程度高，有利于减小结构尺寸，当复合滤芯组件1000安装时只需要一套定位、安装结构，装配简单、省时。The first filter unit 100 and the second filter unit 200 are arranged in the same composite filter element assembly 1000, and the degree of integration is high, which is conducive to reducing the structural size. When the composite filter element assembly 1000 is installed, only one set of positioning and installation structure is required. Simple assembly and time saving.
在本申请的其他一些示例中，如图13所示，复合滤芯组件1000的壳体300两端敞开，壳体300的两端设有壳体上盖310、壳体下盖320。当需要更换第一过滤件10和第二过滤件20时，仅需将打开壳体上盖310，当需要更换第三过滤件30时，仅需要打开壳体下盖320。In some other examples of the present application, as shown in FIG. 13, both ends of the housing 300 of the composite filter element assembly 1000 are open, and both ends of the housing 300 are provided with a housing upper cover 310 and a housing lower cover 320. When the first filter element 10 and the second filter element 20 need to be replaced, only the housing upper cover 310 needs to be opened, and when the third filter element 30 needs to be replaced, only the housing lower cover 320 needs to be opened.
在本申请的一些实施例中，如图16所示，第一过滤单元100内设有间隔支架49，间隔支架49设在第二均布流道12内。间隔支架49使第二均布流道12保持特定的宽度，以及特定的形状，保证了良好的流体流通性能。In some embodiments of the present application, as shown in FIG. 16, the first filter unit 100 is provided with a spacer bracket 49, and the spacer bracket 49 is disposed in the second uniform flow channel 12. The spacing bracket 49 maintains the second uniform flow channel 12 with a specific width and a specific shape, ensuring good fluid circulation performance.
可选地，间隔支架49与第一过滤件10共同卷制而成。间隔支架49可保证第一过滤件10整体卷制的松紧度及强度。Optionally, the spacer bracket 49 is rolled together with the first filter 10. The spacing bracket 49 can ensure the tightness and strength of the entire rolled first filter element 10.
在本申请一些示例中，第一过滤件10为由无纺布、聚丙烯层、碳纤维卷制而成的卷筒。使用寿命较长。当用于自来水的过滤时，可初步去除泥沙、铁锈及余氯。当然，第一过滤件10也可以仅由其中一种或两种材料的滤层卷制而成，这里不做具体限制。In some examples of the present application, the first filter 10 is a roll made of non-woven fabric, polypropylene layer, and carbon fiber. Long service life. When used in the filtration of tap water, it can initially remove sediment, rust and residual chlorine. Of course, the first filter element 10 may also be formed by rolling only one or two materials of the filter layer, which is not specifically limited here.
在本申请一些示例中，第二过滤件20为中空的碳棒。可用于自来水的终滤，碳棒 可滤除水体中异味、有机物、胶体、铁及余氯等，使第二过滤件20控制出水后的饮用水水质条件，改善口感。当然，第二过滤件20也可由活性炭颗粒、滤网及框架组合而成，不局限于碳棒的设置形式。另外，碳过滤介质，也可以更换成KDF55处理介质(高纯铜/锌合金介质)，通过电化学反应去除水中的余氯、减少矿物结垢、减少氧化亚铁等悬浮固体物质、抑制微生物、去除重金属。In some examples of this application, the second filter 20 is a hollow carbon rod. It can be used for the final filtration of tap water. The carbon rod can filter out the odor, organic matter, colloid, iron and residual chlorine in the water body, so that the second filter 20 can control the drinking water quality after the water is discharged, and improve the taste. Of course, the second filter 20 can also be formed by a combination of activated carbon particles, filter screens and frames, and is not limited to the arrangement of carbon rods. In addition, the carbon filter medium can also be replaced with KDF55 treatment medium (high purity copper / zinc alloy medium) to remove residual chlorine in water through electrochemical reaction, reduce mineral scaling, reduce suspended solids such as ferrous oxide, and inhibit microorganisms, Remove heavy metals.
在本申请的一些实施例中，如图16、图17、图18所示，第二过滤单元200具有第五进出口301。第二过滤单元200内设有过滤水流通腔和废水流通腔，过滤水流通腔和废水流通腔之间设有过滤膜35，过滤水流通腔连通过渡流道24，废水流通腔连通第五进出口301。此处的第五进出口301，为第二过滤单元200经过滤后产生的废水的排出口。相应地，第四进出口302则为第二过滤单元200的待过滤液体的进口。In some embodiments of the present application, as shown in FIGS. 16, 17 and 18, the second filter unit 200 has a fifth inlet and outlet 301. The second filter unit 200 is provided with a filtered water circulation cavity and a waste water circulation cavity, a filter membrane 35 is provided between the filtered water circulation cavity and the waste water circulation cavity, the filtered water circulation cavity is connected to the transition flow channel 24, and the waste water circulation cavity is connected to the fifth inlet Exit 301. The fifth inlet and outlet 301 here is the outlet of the waste water generated by the second filter unit 200 after being filtered. Correspondingly, the fourth inlet 302 is the inlet of the liquid to be filtered of the second filter unit 200.
这里，第三过滤件30包括过滤水流通腔和废水流通腔之间的过滤膜35。本申请限定有“第一”、“第二”、“第三”、“第四”、“第五”的特征可以明示或者隐含地包括一个或者更多个该特征，用于区别描述特征，无顺序之分，无轻重之分。Here, the third filter 30 includes a filter membrane 35 that filters the water circulation chamber and the waste water circulation chamber. This application is limited to "first", "second", "third", "fourth", "fifth" features can explicitly or implicitly include one or more of the features, used to distinguish the description of features , No order, no importance.
可选地，如图16所示，第二过滤单元200内沿径向由外到内依次设置有第五均布流道31、第三过滤通道32，第三过滤通道32环绕过滤水流通腔和废水流通腔设置，第三过滤通道32内设有第三过滤件30，废水流通腔与第五均布流道31通过第三过滤通道32连通，第五均布流道31连通第四进出口302。这里，从第四进出口302进入的液体，在第五均布流道31中进行分配和分布，均布在第三过滤件30的外侧，经过第三过滤件30过滤后，高盐度的废水则流向废水流通腔，并经由第五进出口301排出(如图18中所示)。Optionally, as shown in FIG. 16, the second filtering unit 200 is provided with a fifth uniform flow channel 31 and a third filtering channel 32 in this order from the outside to the inside in the radial direction, and the third filtering channel 32 surrounds the filtered water circulation cavity It is provided with the waste water circulation cavity. The third filter channel 32 is provided with a third filter element 30. The waste water circulation cavity and the fifth uniform distribution channel 31 communicate with each other through the third filter channel 32, and the fifth uniform distribution channel 31 communicates with the fourth inlet Exit 302. Here, the liquid entering from the fourth inlet and outlet 302 is distributed and distributed in the fifth uniform distribution channel 31, and is evenly distributed on the outer side of the third filter 30. After filtering through the third filter 30, the high salinity The waste water flows to the waste water circulation chamber and is discharged through the fifth inlet and outlet 301 (as shown in FIG. 18).
水流在穿过第三过滤件30时，大部分沿第二过滤单元200的径向穿过，穿过路径短、流通量大，而且径向穿过时对过滤膜35表面的杂质具有冲刷作用，水流更易冲开杂质后穿过过滤膜35。When the water flow passes through the third filter element 30, most of it passes in the radial direction of the second filter unit 200, the passing path is short, and the flow rate is large, and it has a scouring effect on the impurities on the surface of the filter membrane 35 when passing radially The water flow is easier to wash away impurities and pass through the filter membrane 35.
而第三过滤件30外侧的第五均布流道31的进出水、中心管33内侧进出水大部分水流基本沿轴向流动，这样不仅有利于水流均布，也有利于将第三过滤件30表面冲刷下的杂质带到第二过滤单元200的轴向一端，避免杂质堵在过滤表面。The inlet and outlet water of the fifth uniform distribution channel 31 outside the third filter 30 and the inlet and outlet water inside the central tube 33 mostly flow in the axial direction, which is not only conducive to the uniform distribution of the water flow, but also to the third filter The impurities washed by the surface are brought to the axial end of the second filter unit 200 to prevent the impurities from being blocked on the filter surface.
在一些实施例中，如图6、图7、图8、图9、图16所示，第二过滤单元200内设有中心管33和多个废水集管34，多个废水集管34环绕中心管33设置，中心管33的外周上设有过滤膜35，中心管33连通过渡流道24且管壁上设有过滤水入孔。中心管33外周上的过滤膜35为反渗透膜，仅可以通过盐度较小、水质较好的纯水。在本申请 的描述中，除非另有说明，“多个”的含义是两个或两个以上。In some embodiments, as shown in FIG. 6, FIG. 7, FIG. 8, FIG. 9, and FIG. 16, the second filter unit 200 is provided with a central tube 33 and a plurality of wastewater headers 34, which are surrounded by a plurality of wastewater headers 34 The central tube 33 is provided. A filter membrane 35 is provided on the outer periphery of the central tube 33. The central tube 33 communicates with the transition channel 24 and a filtered water inlet hole is provided on the tube wall. The filter membrane 35 on the outer periphery of the central tube 33 is a reverse osmosis membrane, and can only pass pure water with a lower salinity and better water quality. In the description of this application, unless otherwise stated, "plurality" means two or more.
在一些具体实施例中，如图10-图12所示，中心管33、多个废水集管34和过滤膜35构成螺旋卷式反渗透膜元件。中心管33的管腔构成上述过滤水流通腔，废水集管34的管腔构成上述废水流通腔。In some specific embodiments, as shown in FIGS. 10-12, the central tube 33, a plurality of wastewater headers 34, and the filtration membrane 35 constitute a spiral wound reverse osmosis membrane element. The lumen of the center tube 33 constitutes the above-mentioned filtered water circulation cavity, and the lumen of the wastewater header 34 constitutes the above-mentioned wastewater circulation cavity.
过滤膜35为多组，过滤膜35为反渗透膜片袋，反渗透膜片袋具有第一部分和第二部分，每一废水集管34和中心管33被至少一个反渗透膜片袋的第一部分隔开，多个反渗透膜片袋的第二部分形成围绕在中心管33及多个废水集管34组成的管组的周围，形成多层薄膜组件。The filtration membrane 35 is a plurality of groups. The filtration membrane 35 is a reverse osmosis membrane bag. The reverse osmosis membrane bag has a first part and a second part. Each wastewater header 34 and central tube 33 are separated by at least one reverse osmosis membrane bag. A part is separated, and the second part of the plurality of reverse osmosis membrane bag is formed around the tube group composed of the central tube 33 and the plurality of waste water collecting pipes 34 to form a multi-layer membrane module.
从第四进出口302进入第二过滤单元200的水经反渗透膜片袋过滤后，沿反渗透膜片袋的第二部分朝向中心管33螺旋流动，流动的过程中水分子不断地渗透到反渗透膜片袋内，渗透到反渗透膜片袋内的纯净水也沿螺旋方向朝向中心管33流动。最终纯净水从流向中心管33的过滤水入孔，朝向过渡流道24流动。过滤后剩下的高盐度废水则流向废水集管34的管壁上的废水集孔，废水集管34与第五进出口301相连，从第五进出口301处排出废水。可选地，本申请的第三过滤件30为反渗透膜元件(RO膜元件)。The water that enters the second filter unit 200 from the fourth inlet and outlet 302 is filtered by the reverse osmosis membrane bag, and spirally flows along the second part of the reverse osmosis membrane bag toward the central tube 33. During the flow process, water molecules continuously permeate to In the reverse osmosis membrane bag, the purified water that has penetrated into the reverse osmosis membrane bag also flows toward the central tube 33 in the spiral direction. Finally, pure water flows from the filtered water inlet hole of the central tube 33 toward the transition flow channel 24. The high salinity wastewater remaining after the filtration flows to the wastewater collection hole on the wall of the wastewater header 34, which is connected to the fifth inlet 301 and discharges the wastewater from the fifth inlet 301. Optionally, the third filter 30 of the present application is a reverse osmosis membrane element (RO membrane element).
优选地，反渗透膜元件采用侧流节水膜，通过侧流进水，提高膜表面流速，保证纯水的高回收率，以及过滤膜35较长的使用寿命。Preferably, the reverse osmosis membrane element adopts a lateral flow water-saving membrane, and the lateral flow enters water to increase the flow rate of the membrane surface, ensure a high recovery rate of pure water, and a longer service life of the filtration membrane 35.
可选地，第三过滤件30也可为超滤膜组件，具体可选用市场上已有的超滤膜滤芯。超滤过滤以及反渗透过滤的原理和技术均为本领域技术人员所熟知的现有技术，在本申请中不再赘述。另外，当第三过滤件30采用上述过滤件时，需要对液体提前进行加压再泵入第四进出口302中。Optionally, the third filter element 30 may also be an ultrafiltration membrane module, specifically, an ultrafiltration membrane filter element available on the market may be used. The principles and techniques of ultrafiltration filtration and reverse osmosis filtration are all well-known technologies known to those skilled in the art, and will not be repeated in this application. In addition, when the third filter 30 uses the above filter, the liquid needs to be pressurized in advance and then pumped into the fourth inlet 302.
在本申请的一些实施例中，如图16所示，第四均布流道22为柱形，第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23为依次层套设置的环形。此处，第四均布流道22处于第一过滤单元100的中心，其为柱形。第四均布流道22的外侧套着一圈第二过滤通道23，第二过滤通道23的外侧套着一圈第三均布流道21，第三均布流道21的外侧套着一圈第二均布流道12，第二均布流道12的外侧套着一圈第一过滤通道13，第一过滤通道13的外侧套着一圈第一均布流道11。由此，每一层过滤件过滤面积都较大，过滤件布流均匀，第一过滤单元100整体布置紧凑、占用的安装空间少、集成度高。In some embodiments of the present application, as shown in FIG. 16, the fourth uniform flow channel 22 is cylindrical, the first uniform flow channel 11, the first filter channel 13, the second uniform flow channel 12, and the third The uniformly distributed flow channel 21 and the second filter channel 23 are ring-shaped arranged in layers. Here, the fourth uniform flow channel 22 is at the center of the first filter unit 100, which is cylindrical. A circle of the second filter channel 23 is sleeved on the outside of the fourth uniform flow channel 22, a circle of the third uniform flow channel 21 is sleeved on the outer side of the second filter channel 23, and a circle of the third uniform flow channel 21 is sleeved on the outside A circle of the second uniformly distributed flow channel 12 is enclosed. A circle of the first filter channel 13 is sheathed on the outside of the second uniformly distributed channel 12, and a circle of the first uniformly distributed channel 11 is sheathed on the outside of the first filter channel 13. As a result, the filter area of each layer of filter elements is large, the filter elements are evenly distributed, the first filter unit 100 has a compact overall layout, occupies less installation space, and has a high degree of integration.
在本申请的一些实施例中，如图16所示，第一过滤单元100内设有第一内端盖41，第一内端盖41封在第二过滤通道23和第四均布流道22的朝向第二过滤单元200的端 面，以堵住第二均过滤通道23及第四均布流道22。这里说的第一内端盖41堵住第二均过滤通道23及第四均布流道22，指的是第一内端盖41封住了第二均过滤通道23及第四均布流道22的轴向端面，使第二均过滤通道23及第四均布流道22内的水不能从朝向过渡流道24的轴向端面流出或者流入。下文提及到的某端盖堵住某过滤通道和某均布流道时，其含义也均是如此，后文将不再赘述。In some embodiments of the present application, as shown in FIG. 16, a first inner end cover 41 is provided in the first filter unit 100, and the first inner end cover 41 is sealed in the second filter channel 23 and the fourth uniform flow channel The end surface of 22 faces the second filtering unit 200 to block the second uniform filtering channel 23 and the fourth uniformly distributed flow channel 22. Here, the first inner end cover 41 blocks the second uniform filtering channel 23 and the fourth uniform distribution channel 22, which means that the first inner end cover 41 seals the second uniform filtering channel 23 and the fourth uniform distribution channel The axial end surface of the channel 22 prevents the water in the second uniform filtering channel 23 and the fourth uniform distribution channel 22 from flowing out or flowing in from the axial end surface toward the transition channel 24. When a certain end cover mentioned below blocks a certain filter channel and a uniformly distributed flow channel, the meanings are also the same, and will not be described in detail later.
在图16中，过渡流道24与第三均布流道21相连。第二过滤单元200中第三过滤件30中心管33中的液体可由过渡流道24与第一过滤单元100中第二过滤件20一侧的第三均布流道21中的液体相连。In FIG. 16, the transition flow channel 24 is connected to the third uniform flow channel 21. The liquid in the central tube 33 of the third filter 30 in the second filter unit 200 can be connected to the liquid in the third uniform flow channel 21 on the second filter 20 side of the first filter unit 100 by the transition channel 24.
有利地，第二过滤件20的两端分别与第二过滤通道23的端面平齐，由于第一内端盖41封闭了第二过滤通道23，则第一内端盖41同样封闭了第二过滤件20和第四均布流道22的底部，且为第二过滤件20提供了底部的支撑，有效地防止了第二过滤件20两侧的待净化的液体，和已经净化后的液体在底部相串，保证了第二过滤件20的过滤效果。可选地，第一内端盖41上设有伸入到第四均布流道22中的内凸缘，内凸缘的外周面与第二过滤件20的内周面接触。可选地，第一内端盖41的外周边设有外翻边，外翻边的内侧面与第二过滤件20的外周面接触。内凸缘和外翻边每一样的设置，都可增强第一内端盖41对第四均布流道22和第二过滤件20的端面的液体封挡效果；且能够形成对第一内端盖41和第二过滤件20的防呆配合，容易装配。Advantageously, the two ends of the second filter element 20 are flush with the end faces of the second filter channel 23 respectively. Since the first inner end cover 41 closes the second filter channel 23, the first inner end cover 41 also closes the second The bottom of the filter element 20 and the fourth uniform flow channel 22, and provides the bottom support for the second filter element 20, effectively preventing the liquid to be purified on both sides of the second filter element 20, and the liquid after purification It is connected at the bottom to ensure the filtering effect of the second filter 20. Optionally, the first inner end cover 41 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer circumferential surface of the inner flange contacts the inner circumferential surface of the second filter element 20. Optionally, the outer periphery of the first inner end cover 41 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the second filter 20. The same arrangement of the inner flange and the outer flange can enhance the liquid blocking effect of the first inner end cover 41 on the end surfaces of the fourth uniform flow channel 22 and the second filter element 20; The end cover 41 and the second filter element 20 have a foolproof fit, and are easy to assemble.
具体地，第二过滤件20的轴端端面胶粘在第一内端盖41上，这样不仅装配方便，而且便于一体芯的安装。可选地，第二过滤件20通过一圈热熔胶密封连接在第一内端盖41上。Specifically, the axial end surface of the second filter 20 is glued to the first inner end cover 41, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the second filter element 20 is sealingly connected to the first inner end cover 41 by a ring of hot melt adhesive.
在本申请的一些实施例中，如图16所示，第一过滤单元100内设有第一外端盖42和水路间隔筒46，第一外端盖42封在第一过滤通道13、第二均布流道12的朝向第二过滤单元200的端面，水路间隔筒46与第一外端盖42相连且间隔在第二均布流道12和第三均布流道21之间。如图16中，第一外端盖42封闭了第一过滤件10、第二均布流道12的底部，且为第一过滤件10提供了支撑，有效地防止了第一过滤件10两侧的待净化的液体和已经净化后的液体在底部相串，保证了第一过滤件10的过滤效果。水路间隔筒46将第二均布流道12和第三均布流道21产生可靠的分隔，避免第一过滤件10和第二过滤件20内的液体发生串流、避免各均布流道中的水质降低。In some embodiments of the present application, as shown in FIG. 16, the first filter unit 100 is provided with a first outer end cover 42 and a waterway spacer 46, and the first outer end cover 42 is sealed in the first filter channel 13, the first The end surface of the second uniform flow channel 12 facing the second filter unit 200, the waterway spacer 46 is connected to the first outer end cover 42 and is spaced between the second uniform flow channel 12 and the third uniform flow channel 21. As shown in FIG. 16, the first outer end cover 42 closes the bottoms of the first filter element 10 and the second uniform flow channel 12, and provides support for the first filter element 10, effectively preventing the first filter element 10 from The liquid to be purified on the side and the liquid that has been purified are connected in series at the bottom, ensuring the filtering effect of the first filter 10. The waterway spacer 46 produces a reliable separation of the second uniformly distributed flow channel 12 and the third uniformly distributed flow channel 21, avoids cross-flow of the liquid in the first filter element 10 and the second filter element 20, and prevents each uniformly distributed flow channel The water quality is reduced.
可选地，水路间隔筒46与第一外端盖42为一体成型件。一体成型方便加工制造。一体成型后水路间隔筒46与第一外端盖42之间不易出现间隙，位置相对稳定。一体成型也方便装配，且保证长期使用后，第三均布流道21和第二均布流道12之间不易串流。 而且形成整体件后对第一过滤件10、第二过滤件20都能起到良好的支撑作用。可选地，第一外端盖42中部向上凸出形成凸台，第一内端盖41悬置于凸台上方。即，第一内端盖41与凸台之间有一定间隙，使第三均布流道21与过渡流道24保持连通，使第二过滤件20和第三过滤件30之间的净化水路串联。也就是说，第二过滤件20过滤后的水可经过渡流道24流向第三过滤件30，由第三过滤件30再次过滤；或者，第三过滤件30过滤后的水可经过渡流道24流向第二过滤件20，由第二过滤件20再次过滤。可选地，第一外端盖42将第一过滤单元100和第二过滤单元200在轴向上分隔开来，第一外端盖42在轴向方向设有过渡流道24。第一外端盖42使第一过滤件10、第二过滤件20和第三过滤件30在轴向上初步分开，且其上的过渡流道24使第二过滤件20和第三过滤件30之间形成串联关系。节省了第二过滤件20和第三过滤件30之间连接所需的外部管道。Optionally, the waterway spacer 46 and the first outer end cover 42 are an integrally formed piece. One-piece molding is convenient for processing and manufacturing. After the integral molding, the gap between the water channel spacer 46 and the first outer end cover 42 is less likely to occur, and the position is relatively stable. The one-piece molding is also convenient for assembly, and after long-term use, it is not easy for cross-flow between the third uniformly distributed flow channel 21 and the second uniformly distributed flow channel 12. Moreover, after forming an integral piece, the first filter element 10 and the second filter element 20 can play a good supporting role. Optionally, the middle of the first outer end cover 42 protrudes upward to form a boss, and the first inner end cover 41 is suspended above the boss. That is, there is a certain gap between the first inner end cover 41 and the boss, so that the third uniform flow channel 21 and the transition flow channel 24 are kept in communication, and the purified water path between the second filter 20 and the third filter 30 is maintained Tandem. In other words, the water filtered by the second filter 20 can flow to the third filter 30 through the transition channel 24, and then filtered again by the third filter 30; or, the water filtered by the third filter 30 can pass the transition flow The channel 24 flows to the second filter element 20, where it is filtered again. Optionally, the first outer end cover 42 separates the first filter unit 100 and the second filter unit 200 in the axial direction, and the first outer end cover 42 is provided with a transition flow channel 24 in the axial direction. The first outer end cap 42 makes the first filter element 10, the second filter element 20, and the third filter element 30 separate in the axial direction, and the transition flow channel 24 thereon makes the second filter element 20 and the third filter element Form a series relationship between 30. The external piping required for the connection between the second filter element 20 and the third filter element 30 is saved.
可选地，第一外端盖42的外周边设有外翻边，外翻边的内侧面与第一过滤件10的外周面接触。外翻边外套在第一外端盖42的中部凸台的外侧，外翻边与中部凸台的两侧阻挡，可增强第一外端盖42对第一过滤件10的端面的液体封挡效果；且能够形成对第一过滤件10的防呆配合，容易装配。Optionally, the outer periphery of the first outer end cover 42 is provided with a flange, and the inner side of the flange is in contact with the outer surface of the first filter 10. The outer burring jacket is on the outside of the middle boss of the first outer end cover 42. The outer burring blocks both sides of the middle boss, which can enhance the liquid blocking of the first outer end cover 42 from the end surface of the first filter 10 Effect; and can form a foolproof first filter 10, easy to assemble.
具体地，第一过滤件10的轴端端面胶粘在第一外端盖42上，这样不仅装配方便，而且便于一体芯的安装。可选地，第一过滤件10通过一圈热熔胶密封连接在第一外端盖42上。Specifically, the end surface of the first filter element 10 is glued to the first outer end cover 42, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the first filter element 10 is sealingly connected to the first outer end cover 42 by a ring of hot melt adhesive.
可选地，第一内端盖41与第一外端盖42之间的缝隙较小，第一内端盖41在受到朝向第一外端盖42的作用力时与第一外端盖42相接触，当过渡流道24进水挤开第一内端盖41时，缝隙变大，水路流通更加畅通。将第一内端盖41设置成与第一外端盖42小距离的悬置设计，能使水流在经第二过滤件20时水压能达到微妙的平衡。即当第四均布流道22内水压大于过渡流道24处水压时，第一内端盖41能够暂时封住过渡流道24。Optionally, the gap between the first inner end cover 41 and the first outer end cover 42 is small, and the first inner end cover 41 is in contact with the first outer end cover 42 when subjected to a force toward the first outer end cover 42 In contact, when the transition flow channel 24 enters the water and squeezes the first inner end cover 41, the gap becomes larger, and the water flow is more smooth. The first inner end cover 41 is arranged in a suspension design at a small distance from the first outer end cover 42, so that the water pressure can reach a delicate balance when the water flows through the second filter 20. That is, when the water pressure in the fourth uniform flow channel 22 is greater than the water pressure at the transition channel 24, the first inner end cover 41 can temporarily seal the transition channel 24.
在本申请的一些实施例中，如图16所示，第一过滤单元100内设有第二内端盖43和第二外端盖44，第二外端盖44封在第一过滤通道13的远离第二过滤单元200的端面，第二内端盖43封在第二过滤通道23的远离第二过滤单元200的端面。In some embodiments of the present application, as shown in FIG. 16, a second inner end cap 43 and a second outer end cap 44 are provided in the first filter unit 100, and the second outer end cap 44 is sealed in the first filter channel 13 The second inner end cap 43 is sealed on the end surface of the second filter channel 23 that is away from the second filter unit 200.
这里，第二内端盖43封闭了第二过滤通道23的顶部，且为第二过滤件20提供了顶部的连接，为第三进出口201提供了走向，有效地防止了第二过滤件20两侧的待净化的液体，和已经净化后的液体在顶部相串，进一步保证了第二过滤件20的过滤效果。经第二过滤组件20过滤后的流体聚集在第四均布流道22中，可由第三进出口201向外 排出。Here, the second inner end cover 43 closes the top of the second filter channel 23, and provides the top connection for the second filter element 20, provides a direction for the third inlet and outlet 201, and effectively prevents the second filter element 20 The liquid to be purified on both sides is in series with the liquid after purification on the top, which further ensures the filtering effect of the second filter 20. The fluid filtered by the second filter assembly 20 is collected in the fourth uniform flow channel 22, and can be discharged outward through the third inlet and outlet 201.
相应地，第二外端盖44封闭了第一过滤通道13、第二均布流道12的顶部，且为第一过滤通道13中的第一过滤件10提供了连接，为第一进出口101、第二进出口102进行了分隔，有效地防止了第一过滤件10两侧的待净化的液体和已经净化后的液体在顶部相串，进一步保证了第一过滤件10的过滤效果。Correspondingly, the second outer end cover 44 closes the tops of the first filter channel 13 and the second uniform flow channel 12, and provides a connection for the first filter element 10 in the first filter channel 13 to provide the first inlet and outlet 101. The second inlet and outlet 102 are separated, which effectively prevents the liquid to be purified on both sides of the first filter element 10 and the purified liquid from intersecting at the top, further ensuring the filtering effect of the first filter element 10.
可选地，第二内端盖43的周边设有向下的外翻边，外翻边的内侧面与第二过滤件20的外周面接触。第二内端盖43上设有伸入到第四均布流道22中的内凸缘，内凸缘的外周面与第二过滤件20的内周面接触。内凸缘和外翻边每一样的设置，使第二内端盖43与第二过滤件20之间的连接更为紧密，增加连接的可靠性。且都可增强第二内端盖43对第二过滤件20的端面的液体封挡效果，且能够形成对第二内端盖43的防呆配合，容易装配。Optionally, the periphery of the second inner end cover 43 is provided with a downward burring, and the inner side of the burring is in contact with the outer peripheral surface of the second filter 20. The second inner end cover 43 is provided with an inner flange extending into the fourth uniform flow channel 22, and the outer peripheral surface of the inner flange contacts the inner peripheral surface of the second filter 20. The same arrangement of the inner flange and the outer flange makes the connection between the second inner end cap 43 and the second filter element 20 tighter and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second inner end cover 43 on the end surface of the second filter 20, and can form a foolproof fit for the second inner end cover 43, which is easy to assemble.
具体地，第二过滤件20的轴端端面胶粘在第二内端盖43上，这样不仅装配方便，而且便于一体芯的安装。可选地，第二过滤件20通过一圈热熔胶密封连接在第二内端盖43上。Specifically, the axial end surface of the second filter element 20 is glued to the second inner end cover 43, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the second filter element 20 is sealingly connected to the second inner end cover 43 by a ring of hot melt adhesive.
有利地，第二外端盖44配合在第一过滤件10的远离过渡流道24的轴向端面上，以堵住第一过滤件10。Advantageously, the second outer end cap 44 is fitted on the axial end surface of the first filter element 10 away from the transition channel 24 to block the first filter element 10.
可选地，第二外端盖44的周边设有向下的外翻边，外翻边的内侧面与第一过滤件10的外周面接触。外翻边的设置，使第二外端盖44与第一过滤件10之间的连接更为紧密，增加连接的可靠性。且都可增强第二外端盖44对第一过滤件10的端面的液体封挡效果，且能够形成对第一过滤件10的防呆配合，容易装配。Optionally, the periphery of the second outer end cover 44 is provided with a downward burring edge, and the inner side of the burring edge is in contact with the outer circumferential surface of the first filter 10. The setting of the outer flange makes the connection between the second outer end cover 44 and the first filter element 10 tighter, and increases the reliability of the connection. Both of them can enhance the liquid blocking effect of the second outer end cover 44 on the end surface of the first filter 10, and can form a foolproof fit for the first filter 10, which is easy to assemble.
具体地，第一过滤件10的轴端端面胶粘在第二外端盖44上，这样不仅装配方便，而且便于一体芯的安装。可选地，第一过滤件10通过一圈热熔胶密封连接在第二外端盖44上。Specifically, the axial end surface of the first filter element 10 is glued to the second outer end cover 44, which not only facilitates assembly, but also facilitates the installation of the integrated core. Optionally, the first filter element 10 is sealingly connected to the second outer end cover 44 by a ring of hot melt adhesive.
可选地，第二外端盖44套在第二内端盖43的外侧，第二外端盖44和第二内端盖43之间还套有第二中端盖45，第二中端盖45和第二外端盖44之间的流路连通第二进出口102。第二中端盖45对第一过滤单元100上部起到了进一步的密封，将第二均布流道12和第三均布流道21进一步分隔开来，也有利于第二进出口102和第三进出口201的分隔布置。Optionally, the second outer end cap 44 is sleeved on the outer side of the second inner end cap 43, and a second middle end cap 45 and a second middle end are also sleeved between the second outer end cap 44 and the second inner end cap 43 The flow path between the cover 45 and the second outer end cover 44 communicates with the second inlet and outlet 102. The second middle end cap 45 further seals the upper part of the first filter unit 100, further separating the second uniform flow channel 12 and the third uniform flow channel 21, which is also beneficial to the second inlet 102 and The partition arrangement of the third inlet 201.
设置第二中端盖45，而不是将第二中端盖45与水路间隔筒46一体成型，一方面是利于开模，另一方面是装配需要，提高整体装配的可靠性。Providing the second middle end cap 45 instead of integrally forming the second middle end cap 45 and the waterway spacer 46 is advantageous for mold opening on the one hand, and assembly needs on the other hand, improving the reliability of the overall assembly.
在本申请实施例中，也可以不设置第二中端盖45，这样水路间隔筒46可以直接与第二内端盖43相连，这样节省零件数量。但是由于第二过滤件20要装配到水路间隔筒 46的内侧，水路间隔筒46开口小了则装不进去，水路间隔筒46开口大了则会影响第二外端盖44与第一过滤件10的装配，整体装配难度加大。In the embodiment of the present application, the second middle end cap 45 may not be provided, so that the waterway spacer 46 can be directly connected to the second inner end cap 43, which saves the number of parts. However, since the second filter 20 is to be assembled to the inside of the water channel spacer 46, the opening of the water channel spacer 46 is too small to fit in, and the large opening of the water channel spacer 46 will affect the second outer end cap 44 and the first filter The assembly of 10 makes the overall assembly more difficult.
因此这里提出设置第二中端盖45，装配时先将第二过滤件20等零件装入水路间隔筒46内，然后再将第二中端盖45连接在水路间隔筒46上，则满足装配需要，提高整体装配的可靠性。另一方面，当水路间隔筒46与第一外端盖42一体成型时，可利用一体注塑方式制造，此时为方便开模，不宜一体注塑出第二中端盖45。Therefore, it is proposed to provide a second middle end cap 45. When assembling, first install the second filter 20 and other parts into the waterway spacer 46, and then connect the second middle end cap 45 to the waterway spacer 46, then the assembly is satisfied Need to improve the reliability of the overall assembly. On the other hand, when the waterway spacer 46 is integrally formed with the first outer end cap 42, it can be manufactured by an integral injection method. At this time, it is not convenient to integrally inject the second middle end cap 45 to facilitate mold opening.
可选地，第二中端盖45、第二内端盖43、第二外端盖44的顶部平齐。有利于壳体上盖310对第一过滤单元100的盖封，方便装配。Optionally, the tops of the second middle end cap 45, the second inner end cap 43, and the second outer end cap 44 are flush. It is advantageous for sealing the first filter unit 100 by the upper cover 310 of the casing, and is convenient for assembly.
在图16的示例中，第二中端盖45与第二外端盖44之间的距离较小，能使水流在经第一过滤件10时水压能达到微妙的平衡。即当水路间隔筒46内侧水压大于外侧水压时，第二中端盖45可能被挤在第二外端盖44上，减缓第一过滤件10的过滤速度。当正常运转时，水流挤开第二中端盖45，正常朝向第二进出口102流动。In the example of FIG. 16, the distance between the second middle end cap 45 and the second outer end cap 44 is small, so that the water pressure can reach a delicate balance when the water flows through the first filter 10. That is, when the water pressure inside the water channel spacer 46 is greater than the outside water pressure, the second middle end cap 45 may be squeezed on the second outer end cap 44 to slow down the filtering speed of the first filter 10. During normal operation, the water flow squeezes away the second middle end cap 45 and normally flows toward the second inlet and outlet 102.
在一些具体示例中，第一过滤单元100内所有零件预先装配成一体件，即将第一过滤件10、第二过滤件20、第一内端盖41、第一外端盖42、第二内端盖43、第二外端盖44、第二中端盖45预先连接成一体成前后置一体化滤芯。甚至密封圈，也可以预先装配。In some specific examples, all parts in the first filter unit 100 are pre-assembled into an integral piece, that is, the first filter element 10, the second filter element 20, the first inner end cap 41, the first outer end cap 42, the second inner The end cap 43, the second outer end cap 44, and the second middle end cap 45 are pre-connected to be integrated into a front and rear integrated filter element. Even the sealing ring can be pre-assembled.
这样的前后置一体化滤芯，在装配时可直接插在壳体300内的隔板和壳体上盖310之间，整机装配过程得到了大大简化。而且如果壳体上盖310是可拆卸连接在瓶体上的，那用户在使用后，也可以自行更换前后置一体化滤芯，而且用户自己更换时的操作步骤也非常容易，提高了用户的换芯体验、减小了换芯成本。Such a front-rear integrated filter element can be directly inserted between the partition plate in the casing 300 and the upper cover 310 of the casing during assembly, and the assembly process of the whole machine is greatly simplified. Moreover, if the upper cover 310 of the casing is detachably connected to the bottle body, the user can also replace the front and rear integrated filter elements after use, and the operation steps when the user replaces it are also very easy, which improves the user's replacement. Core experience, reducing the cost of core replacement.
在本申请的一些实施例中，如图5、图6、图7、图8、图9、图16所示，复合滤芯组件1000还包括：第三端盖47和第四端盖48，第三端盖47封在第三过滤通道32和废水流通腔的朝向第一过滤单元100的一端，第四端盖48封在第三过滤通道32和过滤水流通腔的远离第一过滤单元100的一端。第三端盖47和第四端盖48为第三过滤件30及中心管33、废水集管34提供了限位安装。In some embodiments of the present application, as shown in FIGS. 5, 6, 7, 8, 9, and 16, the composite filter element assembly 1000 further includes: a third end cover 47 and a fourth end cover 48, The three end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 One end. The third end cap 47 and the fourth end cap 48 provide limit installation for the third filter 30, the central pipe 33, and the waste water header 34.
这里，第三端盖47封闭了第三过滤件30和废水流通腔的顶部，且为第三过滤件30提供了顶部的连接，有效地防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在顶部相串；第四端盖48封闭了第三过滤件30和过滤水流通腔的底部，且为第三过滤件30提供了底部的密封和支撑，有效地防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在底部相串，保证了第三过滤件30的过滤效果。Here, the third end cap 47 closes the top of the third filter 30 and the waste water circulation cavity, and provides the top connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 It is connected with the purified liquid at the top; the fourth end cap 48 closes the bottom of the third filter element 30 and the filtered water circulation cavity, and provides the bottom seal and support for the third filter element 30, which effectively prevents The liquid to be purified on both sides of the third filter 30 and the liquid after purification are connected at the bottom to ensure the filtering effect of the third filter 30.
具体地，如图5、图6、图7、图16所示，第三端盖47的两端设有相通的第二插管471和第三插管472，第二插管471插接在过渡流道24内，第三插管472与中心管33相连。这里，第三端盖47封闭了第三过滤件30的顶部，且为第三过滤件30提供了顶部的支撑连接，有效防止了第三过滤件30两侧的待净化的液体和已经净化后的液体在顶部相串。Specifically, as shown in FIG. 5, FIG. 6, FIG. 7, and FIG. 16, the two ends of the third end cap 47 are provided with the second cannula 471 and the third cannula 472 communicating with each other. In the transition channel 24, the third insertion tube 472 is connected to the center tube 33. Here, the third end cap 47 closes the top of the third filter 30 and provides a top support connection for the third filter 30, effectively preventing the liquid to be purified on both sides of the third filter 30 and the Liquids are tandem at the top.
其中，第三端盖47通过第二插管471插接在过渡流道24内，一方面便于密封，防止第二过滤单元200内高压水未经第三过滤件30过滤就流向过渡流道24，另一方面利用过渡流道24定位，提高定位精度的同时还能降低装配难度。Among them, the third end cap 47 is inserted into the transition flow channel 24 through the second insertion tube 471, on the one hand, it is convenient to seal, and prevents the high-pressure water in the second filtration unit 200 from flowing to the transition flow channel 24 without being filtered by the third filter 30 On the other hand, the use of the transition runner 24 for positioning improves positioning accuracy while reducing assembly difficulty.
第三端盖47通过第三插管472插接在中心管33上，一方面利用第三插管472与中心管33管壁之间的面接触实现密封，另一方面方便中心管33的定位与安装，防止长期使用后中心管33歪斜、漏水。The third end cap 47 is inserted into the central tube 33 through the third insertion tube 472. On the one hand, the surface contact between the third insertion tube 472 and the wall of the central tube 33 is used to achieve sealing, and on the other hand, the positioning of the central tube 33 is facilitated. With the installation, the center tube 33 is prevented from skewing and leaking after long-term use.
另外，如图7所示，第三端盖47上设有第一定位凸起473，第一定位凸起473与废水集管34对应设置，废水集管34的一端插在第一定位凸起473上，此第一定位凸起473具有一定的防呆配合功能，方便第三端盖47与废水集管34定位安装，防止长期使用后废水集管34歪斜。In addition, as shown in FIG. 7, the third end cap 47 is provided with a first positioning protrusion 473, which is corresponding to the wastewater header 34, and one end of the wastewater header 34 is inserted in the first positioning protrusion On the 473, the first positioning protrusion 473 has a certain foolproof coordination function, which is convenient for the positioning and installation of the third end cap 47 and the waste water header 34, and prevents the waste water header 34 from skewing after long-term use.
可选地，如图6、图7所示，第三端盖47的周壁上设有第一装配定位结构474，多个第一装配定位结构474沿周向间隔开设置，多个第一装配定位结构474止抵在壳体300的内壁上，提高第三过滤件30在第二过滤单元200内的对中度，避免第三过滤件30整体歪斜导致无法在过渡流道24处良好配合。Optionally, as shown in FIGS. 6 and 7, a first assembly positioning structure 474 is provided on the peripheral wall of the third end cap 47, and a plurality of first assembly positioning structures 474 are spaced apart in the circumferential direction, and a plurality of first assemblies The positioning structure 474 abuts against the inner wall of the housing 300 to increase the centering of the third filter 30 in the second filter unit 200, and to prevent the third filter 30 from being skewed as a whole to prevent the transition channel 24 from fitting well.
有利地，第二插管471与过渡流道24之间设有密封圈。Advantageously, a sealing ring is provided between the second cannula 471 and the transition flow channel 24.
具体地，如图8、图9所示，第四端盖48上设有第四插管481，第四端盖48上设有分别与废水集管34、第五进出口301相连的排废口482。Specifically, as shown in FIGS. 8 and 9, the fourth end cap 48 is provided with a fourth insertion tube 481, and the fourth end cap 48 is provided with waste discharges connected to the wastewater header 34 and the fifth inlet 301 respectively Mouth 482.
另外，如图9所示，第四端盖48的中部凸出设有第二定位凸起483，第二定位凸起483与中心管33对应设置，中心管33的一端插在第二定位凸起483上，此第二定位凸起483具有封堵功能，也具有一定的防呆配合功能，方便第四端盖48与中心管33定位安装，防止长期使用时中心管33歪斜，且可封闭中心管33下部，防止中心管33中的液体流出。In addition, as shown in FIG. 9, a second positioning protrusion 483 is protruded from the middle of the fourth end cover 48. The second positioning protrusion 483 is corresponding to the central tube 33, and one end of the central tube 33 is inserted into the second positioning protrusion From 483, the second positioning protrusion 483 has a blocking function, and also has a certain foolproof coordination function, which facilitates the positioning and installation of the fourth end cap 48 and the central tube 33, prevents the central tube 33 from skewing and can be closed during long-term use The lower portion of the center tube 33 prevents the liquid in the center tube 33 from flowing out.
可选地，如图8、图9所示，第四端盖48的周壁上设有第二装配定位结构484，多个第二装配定位结构484沿周向间隔开设置，多个第二装配定位结构484止抵在壳体300的内壁上，提高第三过滤件30在第二过滤单元200内的对中度，避免第三过滤件30整体歪斜导致无法在与第五进出口301连接的接管处良好配合。Optionally, as shown in FIGS. 8 and 9, a second assembly positioning structure 484 is provided on the peripheral wall of the fourth end cap 48, a plurality of second assembly positioning structures 484 are spaced apart along the circumferential direction, and a plurality of second assemblies The positioning structure 484 stops against the inner wall of the housing 300 to improve the alignment of the third filter element 30 in the second filter unit 200, and to prevent the third filter element 30 from being skewed as a whole Good coordination at the takeover.
下面参考图13描述本申请第一个实施例的净水***2000。The water purification system 2000 of the first embodiment of the present application will be described below with reference to FIG. 13.
根据本申请实施例的一种净水***2000，包括：复合滤芯组件1000、进水管400、纯水管500、第一转换管700、增压泵710。A water purification system 2000 according to an embodiment of the present application includes: a composite filter element assembly 1000, a water inlet pipe 400, a pure water pipe 500, a first conversion pipe 700, and a booster pump 710.
复合滤芯组件1000的结构在前部已做具体描述，在此不做赘述。The structure of the composite filter element assembly 1000 has been described in detail at the front, and will not be repeated here.
如图13所示，进水管400连接复合滤芯组件1000的第一进出口101。此处，通过进水管400，可以将待净化的自来水(或者来自其他水源的原水)通入复合滤芯组件1000中，第一过滤件10将对自来水进行初滤。As shown in FIG. 13, the water inlet pipe 400 is connected to the first inlet and outlet 101 of the composite filter element assembly 1000. Here, through the water inlet pipe 400, tap water (or raw water from other water sources) to be purified can be passed into the composite filter element assembly 1000, and the first filter 10 will perform preliminary filtering on the tap water.
纯水管500连接复合滤芯组件1000的第三进出口201。此处，经过复合滤芯组件1000多级过滤后的纯水可由纯水管500向外导出。The pure water pipe 500 is connected to the third inlet 201 of the composite filter element assembly 1000. Here, the pure water after the multi-stage filtration of the composite filter element assembly 1000 can be led out by the pure water pipe 500.
第一转换管700分别连接第二进出口102和第四进出口302，增压泵710串联连接在第一转换管700上。第一转换管700连通了第一过滤件10和第三过滤件20之间的流道，使经过第一过滤件10过滤后的前置出水进入到第三过滤件20中的第五均布流道31中。经过增压泵710增压后再进入第三过滤件20过滤，可加快过滤的速度，提高过滤的效率。当第三过滤件20采用反渗透膜组件或超滤膜组件时，可完成低离子浓度的前置出水向高离子浓度的废水以及纯水转换。The first conversion tube 700 is respectively connected to the second inlet 102 and the fourth inlet 302, and the booster pump 710 is connected in series to the first conversion tube 700. The first conversion tube 700 communicates with the flow path between the first filter element 10 and the third filter element 20, so that the pre-filtered water filtered by the first filter element 10 enters the fifth uniform distribution in the third filter element 20 In the flow channel 31. After being boosted by the booster pump 710 and then entering the third filter 20 for filtering, the filtering speed can be accelerated and the filtering efficiency can be improved. When the third filter element 20 adopts a reverse osmosis membrane module or an ultrafiltration membrane module, the conversion of low-ion concentration pre-effluent to high-ion concentration wastewater and pure water can be completed.
可以理解的是，本申请中第一过滤单元100和第二过滤单元200在轴向间隔开设置，并由过渡流道24连接，两过滤单元配合紧凑，过渡流道24代替了第三过滤件30和第二过滤件20之间连通所需的外部连接管道，即节省了第二过滤件20的外部进水连接管道，也节省了第三过滤件30的外部出水连接管道，使净水***2000整体节省了外部管道的数量和布置难度，增加了净水***2000整体设计的简易性，增加了净水***2000运行的可靠性。It can be understood that in this application, the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and are connected by the transition flow channel 24, the two filter units are compactly matched, and the transition flow channel 24 replaces the third filter element The external connection pipes required for communication between 30 and the second filter element 20 save the external water inlet connection pipe of the second filter element 20 and the external water outlet connection pipe of the third filter element 30 to make the water purification system 2000 as a whole saves the number of external pipes and the difficulty of layout, increases the simplicity of the overall design of the water purification system 2000, and increases the reliability of the operation of the water purification system 2000.
相比于三种滤芯分别设置在各自的滤芯壳体内，三个滤芯壳体之间分别使用外部管道进行连通的布置方式而言，本申请的净水***2000大大减少了整体的布置空间，节约了外部管道的布置，***中布设的外部管路较为集中，布置容易。Compared with the arrangement in which the three filter elements are respectively arranged in the respective filter element shells and the three filter element shells are respectively communicated with external pipes, the water purification system 2000 of the present application greatly reduces the overall layout space and saves In addition to the layout of external pipelines, the external pipelines arranged in the system are relatively concentrated and easy to arrange.
通过净水***2000的各管道连接，进入净水***2000的原水先经第一过滤单元100的第一过滤件10初步净化，然后进入第二过滤单元200进行过滤，之后再回到第一过滤单元100由第二过滤件20进行过滤。其中，在进入第二过滤单元200前要经增压泵710增压，使水流能够高压通过第三过滤件30，提高过滤效率。而复合滤芯组件1000如此设置，将可以常压过滤或者低压过滤的过滤件(第一过滤件10，第二过滤件20)集中在第一过滤单元100内，将需要高压过滤的过滤件(第三过滤件30)集中在第二过滤单元200内，将二者分开设置，第一过滤单元100的各部分连接可以按照常压要求 进行装配，避免装配成本过高，而第二过滤单元200的各部分连接按照高压要求进行装配。By connecting the pipes of the water purification system 2000, the raw water entering the water purification system 2000 is preliminarily purified by the first filtering element 10 of the first filtering unit 100, then enters the second filtering unit 200 for filtering, and then returns to the first filtering The unit 100 is filtered by the second filter 20. Among them, before entering the second filter unit 200, it is pressurized by the booster pump 710, so that the water flow can pass through the third filter 30 at a high pressure, and the filtration efficiency is improved. The composite filter element assembly 1000 is arranged in such a manner that the filter elements (first filter element 10, second filter element 20) that can be filtered under normal pressure or low pressure are concentrated in the first filter unit 100, and the filter element that requires high-pressure filtration (section Three filter elements 30) are concentrated in the second filter unit 200, and the two are arranged separately. The connection of each part of the first filter unit 100 can be assembled according to the requirements of normal pressure, to avoid excessive assembly costs, and the second filter unit 200 The connection of each part is assembled according to the high voltage requirements.
在本申请的一些实施例中，如图13所示，净水***2000还包括：第二转换控制阀720。第二转换控制阀720串联连接在第一转换管700上，第二转换控制阀720可控制第一转换管700中的水流的流通和切断。通过阻断第一转换管700上水流的流动来判断***，第二转换控制阀720与增压泵710距离近，保证判断时增压泵710内不再有水流流动，对增压泵710具有保护作用。而且由于第二过滤单元200水压高于第一过滤单元100的水压的原因，在第一转换管700上设置第二转换控制阀720来控制整个***，还能避免第二过滤单元200内水流沿第一转换管700逆流。In some embodiments of the present application, as shown in FIG. 13, the water purification system 2000 further includes: a second switching control valve 720. The second switching control valve 720 is connected in series to the first switching tube 700, and the second switching control valve 720 can control the circulation and shutoff of the water flow in the first switching tube 700. The system is judged by blocking the flow of water on the first switching tube 700. The second switching control valve 720 is close to the booster pump 710 to ensure that there is no longer any water flow in the booster pump 710 during the judgment, which protects the booster pump 710 effect. Moreover, because the water pressure of the second filter unit 200 is higher than that of the first filter unit 100, a second switch control valve 720 is provided on the first switch tube 700 to control the entire system, and the second filter unit 200 can be avoided. The water flow is countercurrent along the first conversion tube 700.
在本申请的一些示例中，净水***2000还包括：串联连接在纯水管500上的高压开关510，高压开关510与第二转换控制阀720电联接。高压开关510设置在纯水管500上，当检测到纯水出口处压力高于预设值时，则关闭第二转换控制阀720，使复合滤芯组件1000停止净水。高压开关510与第二转换控制阀720电连接，可控制第二转换控制阀720的开闭，以使出水管500、第一转换管700内的水压保持稳定，使整个净水***2000中各个水路协调运行。In some examples of the present application, the water purification system 2000 further includes: a high-pressure switch 510 connected in series on the pure water pipe 500, and the high-pressure switch 510 is electrically coupled to the second transfer control valve 720. The high-pressure switch 510 is provided on the pure water pipe 500. When it is detected that the pressure at the pure water outlet is higher than a preset value, the second switching control valve 720 is closed, so that the composite filter element assembly 1000 stops purifying water. The high-pressure switch 510 is electrically connected to the second switching control valve 720, and can control the opening and closing of the second switching control valve 720, so that the water pressure in the outlet pipe 500 and the first switching pipe 700 is kept stable, so that the entire water purification system 2000 Coordinated operation of various waterways.
可选地，如图13所示，净水***2000还包括：串联连接在纯水管500上的第一单向阀520。此第一单向阀520保证从第二过滤件20中过滤后的饮用水流向最终的用水端，而不倒流，使得净水***2000运行稳定可靠。Optionally, as shown in FIG. 13, the water purification system 2000 further includes: a first one-way valve 520 connected in series on the pure water pipe 500. The first one-way valve 520 ensures that the drinking water filtered from the second filter 20 flows to the final water end without reverse flow, so that the water purification system 2000 operates stably and reliably.
可选地，纯水管500的末端连通供用户使用饮用水的水龙头900，方便用户直接使用高品质纯水。Optionally, the end of the pure water pipe 500 is connected to a faucet 900 for drinking water for the user, which is convenient for the user to directly use high-quality pure water.
在本申请的一些实施例中，如图13所示，净水***2000还包括：废水管600和废水阀610。废水管600连接复合滤芯组件1000的第五进出口301，废水阀610则串联连接在废水管600上。废水阀610开启可控制第三过滤单元30内的高盐量的废水向外排出，保证第三过滤组件30的正常工作。In some embodiments of the present application, as shown in FIG. 13, the water purification system 2000 further includes: a waste water pipe 600 and a waste water valve 610. The waste water pipe 600 is connected to the fifth inlet 301 of the composite filter element assembly 1000, and the waste water valve 610 is connected in series to the waste water pipe 600. The opening of the waste water valve 610 can control the discharge of waste water with high salt content in the third filter unit 30 to ensure the normal operation of the third filter assembly 30.
可选地，废水阀610为可调废水阀。Optionally, the waste water valve 610 is an adjustable waste water valve.
在一些示例中，废水阀610为累计制冲洗。即当废液累计到一定量时，控制***控制废水阀610开启一次。In some examples, the waste water valve 610 is a cumulative flush. That is, when the waste liquid accumulates to a certain amount, the control system controls the waste water valve 610 to open once.
在一些示例中，废水阀610为待机冲洗。In some examples, the waste water valve 610 is a standby flush.
可调废水阀保证废水阀610自身不堵塞，同时保证第三过滤件30的使用寿命。当第三过滤件30工作一段时间后，积累了一定量的废水，开启废水阀610排液，避免废 水长期积在第三过滤件30表面损伤第三过滤件30，提升第三过滤件30整体的使用率，提高滤水流速；减少高盐度的废水持续对废水阀610的腐蚀，延长废水阀610的使用寿命。The adjustable waste water valve ensures that the waste water valve 610 itself is not blocked, and at the same time ensures the service life of the third filter 30. After the third filter 30 has been working for a period of time, a certain amount of waste water has been accumulated, and the waste water valve 610 is opened to discharge liquid, so as to prevent the long-term accumulation of waste water on the surface of the third filter 30 to damage the third filter 30, and enhance the entirety of the third filter 30 The utilization rate of water can increase the flow rate of filtered water; reduce the continuous corrosion of waste water valve 610 by high-salinity waste water and prolong the service life of waste water valve 610.
下面参考图14-图15描述本申请第二个实施例的净水***2000。The water purification system 2000 of the second embodiment of the present application will be described below with reference to FIGS. 14-15.
根据本申请实施例的一种净水***2000，包括：复合滤芯组件1000、进水管400、纯水管500、废水管600、废水阀610、第一转换控制阀620、第一转换管700、增压泵710、第二转换管800。复合滤芯组件1000的结构在前部已做具体描述，在此不做赘述。A water purification system 2000 according to an embodiment of the present application includes: a composite filter element assembly 1000, an inlet pipe 400, a pure water pipe 500, a waste water pipe 600, a waste water valve 610, a first switching control valve 620, a first switching pipe 700, Booster pump 710, second conversion tube 800. The structure of the composite filter element assembly 1000 has been described in detail at the front, and will not be repeated here.
如图14、图15所示，进水管400连接复合滤芯组件1000的第一进出口101。此处，通过进水管400，可以将待净化的自来水(或者来自其他水源的原水)通入复合滤芯组件1000中，第一过滤件10将对自来水进行初滤。As shown in FIGS. 14 and 15, the water inlet pipe 400 is connected to the first inlet 101 of the composite filter element assembly 1000. Here, through the water inlet pipe 400, tap water (or raw water from other water sources) to be purified can be passed into the composite filter element assembly 1000, and the first filter 10 will perform preliminary filtering on the tap water.
纯水管500连接复合滤芯组件1000的第三进出口201。此处，经过复合滤芯组件1000多级过滤后的纯水通过第三进出口201流出后，由纯水管500向外导出。The pure water pipe 500 is connected to the third inlet 201 of the composite filter element assembly 1000. Here, the pure water after the multi-stage filtration of the composite filter element assembly 1000 flows out through the third inlet and outlet 201, and then is led out by the pure water pipe 500.
废水管600连接复合滤芯组件1000的第五进出口301。此处，通过废水管600，可以将经过第二过滤件20过滤后产生的高盐度废水向外导出。The waste water pipe 600 is connected to the fifth inlet 301 of the composite filter element assembly 1000. Here, through the waste water pipe 600, the high-salinity waste water generated after being filtered by the second filter 20 can be led out.
废水阀610串联连接在废水管600上。废水阀610开启可控制第三过滤单元30内的高盐量的废水向外排出，保证第三过滤组件30的正常工作。The waste water valve 610 is connected to the waste water pipe 600 in series. The opening of the waste water valve 610 can control the discharge of waste water with high salt content in the third filter unit 30 to ensure the normal operation of the third filter assembly 30.
第一转换控制阀620串联连接在废水管600上，第一转换控制阀620位于废水阀610与第五进出口301之间。此处的第一转换控制阀620，可控制第五进出口301及与其相连的一段废水管600中是否向后端的废水管600排液。第一转换控制阀620的设置，可防止第三过滤件30中的废水在压力下，通过连通的废水管600直达废水阀610，这就能够减缓废水阀610的电导率提升，初步保证废水阀610不易结垢。The first switching control valve 620 is connected in series to the waste water pipe 600, and the first switching control valve 620 is located between the waste water valve 610 and the fifth inlet 301. Here, the first switching control valve 620 can control whether the fifth inlet and outlet 301 and a section of the waste water pipe 600 connected thereto discharge liquid to the waste water pipe 600 at the rear end. The setting of the first switching control valve 620 can prevent the waste water in the third filter 30 from reaching the waste water valve 610 through the connected waste water pipe 600 under pressure, which can slow down the conductivity increase of the waste water valve 610 and initially guarantee the waste water valve 610 is not easy to scale.
第一转换管700分别连接第二进出口102和第四进出口302，增压泵710串联连接在第一转换管700上。第一转换管700连通了第一过滤件10和第三过滤件20之间的流道，使经过第一过滤件10过滤后的前置出水进入到第三过滤件30中的第五均布流道31中。经过增压泵710增压后再进入第三过滤件30过滤，可加快过滤的速度，提高过滤的效率。当第三过滤件20采用反渗透膜组件或超滤膜组件时，可完成低离子浓度的前置出水向高离子浓度的废水以及纯水转换。The first conversion tube 700 is respectively connected to the second inlet 102 and the fourth inlet 302, and the booster pump 710 is connected in series to the first conversion tube 700. The first conversion tube 700 communicates with the flow path between the first filter element 10 and the third filter element 20, so that the pre-filtered water filtered by the first filter element 10 enters the fifth uniform distribution in the third filter element 30 In the flow channel 31. After being boosted by the booster pump 710 and then entering the third filter 30 for filtering, the filtering speed can be accelerated and the filtering efficiency can be improved. When the third filter element 20 adopts a reverse osmosis membrane module or an ultrafiltration membrane module, the conversion of low-ion concentration pre-effluent to high-ion concentration wastewater and pure water can be completed.
第二转换管800分别连接第一转换管700和废水管600，第二转换管800与废水管600的连接点位于废水阀610和第一转换控制阀620之间，第二转换管800与第一转换管700的连接点位于增压泵710和第二进出口102之间。此处的第二转换管800作为连接低盐度的前置水的支路。The second conversion pipe 800 is connected to the first conversion pipe 700 and the waste water pipe 600 respectively. The connection point of the second conversion pipe 800 and the waste water pipe 600 is located between the waste water valve 610 and the first conversion control valve 620, and the second conversion pipe 800 is connected to the first The connection point of a conversion tube 700 is located between the booster pump 710 and the second inlet and outlet 102. The second conversion tube 800 here serves as a branch connecting the low-salinity pre-water.
可以理解的是，如图15所示，在置换过程中，关闭第一转换控制阀620、增压泵710，使第一转换管700切断后净水***2000停止净水时，第二转换管800可将低盐度的前置水导入到废水阀610中，将废水阀610中高盐度的废液置换，减轻废水阀610中积垢的概率，增加废水阀610的使用寿命，进一步保证废水阀610不结构的可靠性。It can be understood that, as shown in FIG. 15, during the replacement process, the first switching control valve 620 and the booster pump 710 are closed, so that after the first switching tube 700 is cut off and the water purification system 2000 stops purifying water, the second switching tube 800 can introduce low salinity pre-water into the waste water valve 610, replace the high salinity waste liquid in the waste water valve 610, reduce the probability of scaling in the waste water valve 610, increase the service life of the waste water valve 610, and further ensure the waste water Valve 610 is not structurally reliable.
如图14所示，在正常的过滤回流过程中，第一转换控制阀620、增压泵710开启，废水阀610关闭，高盐度的废水不仅流向废水阀610的前端废水管600，也会流向第二转向管800，并回流到增压泵710前的第一转换管700中，随着盐度较低的前置出水继续进入第三过滤件30前进行过滤，第二转换管800可以减小第三过滤件30的膜前压力，防止膜前压太高导致膜破损，延长第三过滤件30的使用寿命。而且由第三过滤件30过滤后的水可以从第二转换管800、第一转换管700再回到第二过滤单元200内再次过滤，多重过滤下，大部分水分子都能通过第三过滤件30后流向第一过滤单元100，如此废水量排的并不多，可保证纯水的回收率。As shown in FIG. 14, in the normal filtration and reflux process, the first switching control valve 620 and the booster pump 710 are opened, and the waste water valve 610 is closed. Flow to the second diverting tube 800 and return to the first conversion tube 700 before the booster pump 710. As the pre-outlet with lower salinity continues to filter before entering the third filter 30, the second conversion tube 800 can The pre-membrane pressure of the third filter 30 is reduced to prevent the membrane from being damaged due to the high pre-membrane pressure, and the service life of the third filter 30 is extended. Moreover, the water filtered by the third filter 30 can be filtered from the second conversion tube 800, the first conversion tube 700, and then returned to the second filter unit 200. Under multiple filtration, most of the water molecules can pass through the third filter The piece 30 flows to the first filtering unit 100, so that the amount of waste water is not discharged much, and the recovery rate of pure water can be ensured.
本申请中第一过滤单元100和第二过滤单元200在轴向间隔开设置，并由过渡流道24连接，两过滤单元配合紧凑，过渡流道24代替了第三过滤件30和第二过滤件20之间连通所需的外部连接管道，既节省了第二过滤件20的外部进水连接管道，也节省了第三过滤件30的外部出水连接管道，使净水***2000整体节省了外部管道的数量和布置难度，增加了净水***2000整体设计的简易性，防止***堵塞，增加了净水***2000运行的可靠性。In this application, the first filter unit 100 and the second filter unit 200 are spaced apart in the axial direction, and are connected by the transition flow channel 24. The two filter units are compactly matched. The transition flow channel 24 replaces the third filter 30 and the second filter The external connection pipes required for the communication between the pieces 20 not only save the external water inlet connection pipe of the second filter element 20, but also save the external water outlet connection pipe of the third filter element 30, so that the water purification system 2000 overall saves the external The number of pipes and the difficulty of layout increase the simplicity of the overall design of the water purification system 2000, prevent system clogging, and increase the reliability of the water purification system 2000 operation.
相比于三种滤芯分别设置在各自的滤芯壳体内，三个滤芯壳体之间分别使用外部管道进行连通的布置方式而言，本申请的净水***2000大大减少了整体的布置空间，节约了外部管道的布置，***中布设的外部管路较为集中，布置容易。Compared with the arrangement in which the three filter elements are respectively arranged in the respective filter element shells and the three filter element shells are respectively communicated with external pipes, the water purification system 2000 of the present application greatly reduces the overall layout space and saves In addition to the layout of external pipelines, the external pipelines arranged in the system are relatively concentrated and easy to arrange.
通过净水***2000的各管道连接，进入净水***2000的原水先经第一过滤单元100的第一过滤件10初步净化，然后进入第二过滤单元200进行过滤，之后再回到第一过滤单元100由第二过滤件20进行过滤。其中，在进入第二过滤单元200前要经增压泵710增压，使水流能够高压通过第三过滤件30，提高过滤效率。而复合滤芯组件1000如此设置，将可以常压过滤或者低压过滤的过滤件(第一过滤件10，第二过滤件20)集中在第一过滤单元100内，将需要高压过滤的过滤件(第三过滤件30)集中在第二过滤单元200内，将二者分开设置，第一过滤单元100的各部分连接可以按照常压要求进行装配，避免装配成本过高，而第二过滤单元200的各部分连接按照高压要求进行装配。By connecting the pipes of the water purification system 2000, the raw water entering the water purification system 2000 is preliminarily purified by the first filtering element 10 of the first filtering unit 100, then enters the second filtering unit 200 for filtering, and then returns to the first filtering The unit 100 is filtered by the second filter 20. Among them, before entering the second filter unit 200, it is pressurized by the booster pump 710, so that the water flow can pass through the third filter 30 at a high pressure, and the filtration efficiency is improved. The composite filter element assembly 1000 is arranged in such a manner that the filter elements (first filter element 10, second filter element 20) that can be filtered under normal pressure or low pressure are concentrated in the first filter unit 100, and the filter element that requires high-pressure filtration (section Three filter elements 30) are concentrated in the second filter unit 200, and the two are arranged separately. The connection of each part of the first filter unit 100 can be assembled according to the requirements of normal pressure, to avoid excessive assembly costs, and the second filter unit 200 The connection of each part is assembled according to the high voltage requirements.
在本申请的一些实施例中，如图14、图15所示，净水***2000还包括：第二转换控制阀720，第二转换控制阀720串联连接在第一转换管700上，第二转换控制阀720位于第二转换管800与第一转换管700的连接点与第二进出口102之间。此处，第二转换控制阀720可控制第一转换管700和第二转换管800中的前置出水的水流的流通和切断。通过阻断第一转换管700上水流的流动来判断***，由于第二过滤单元200水压高于第一过滤单元100的水压的原因，在第一转换管700上设置第二转换控制阀720来控制整个***，还能避免第二过滤单元200内水流沿第一转换管700逆流。In some embodiments of the present application, as shown in FIGS. 14 and 15, the water purification system 2000 further includes: a second switching control valve 720, the second switching control valve 720 is connected in series to the first switching tube 700, the second The switching control valve 720 is located between the connection point of the second switching tube 800 and the first switching tube 700 and the second inlet and outlet 102. Here, the second switching control valve 720 may control the circulation and cutoff of the water flow of the pre-exit water in the first switching tube 700 and the second switching tube 800. The system is judged by blocking the flow of the water flow on the first switching tube 700. Since the water pressure of the second filtering unit 200 is higher than the water pressure of the first filtering unit 100, a second switching control valve 720 is provided on the first switching tube 700 To control the entire system, it can also prevent the water flow in the second filter unit 200 from flowing back along the first conversion tube 700.
在本申请的一些示例中，净水***2000还包括：串联连接在纯水管500上的高压开关510，高压开关510与增压泵710电联接。高压开关510设置在纯水管500上，当检测到纯水出口(第三进出口201)处压力高于预设值时，则关闭增压泵710，使复合滤芯组件1000停止净水制水。高压开关510与增压泵710电连接，可控制增压泵710的启闭，使第三过滤件30能够正常运行并净化制水。In some examples of the present application, the water purification system 2000 further includes: a high-pressure switch 510 connected in series on the pure water pipe 500, and the high-pressure switch 510 is electrically coupled with the booster pump 710. The high-pressure switch 510 is provided on the pure water pipe 500. When it is detected that the pressure at the pure water outlet (the third inlet 201) is higher than the preset value, the booster pump 710 is turned off to stop the composite filter element assembly 1000 from purifying water . The high-pressure switch 510 is electrically connected to the booster pump 710, and can control the opening and closing of the booster pump 710, so that the third filter 30 can operate normally and purify the water.
在本申请的一些示例中，增压泵710与第一转换控制阀620电连接，且增压泵710与第一转换控制阀620同开同关。增压泵710与第一转换控制阀620有任何一个停止运行，则另一个联动停止，使净水***2000停止正常的过滤，进而开启回流置换过滤废水阀610中高盐度的废水。有利于两种流路状态的切换和控制。In some examples of the present application, the booster pump 710 is electrically connected to the first switching control valve 620, and the booster pump 710 and the first switching control valve 620 are opened and closed at the same time. If any one of the booster pump 710 and the first switching control valve 620 is stopped, the other is stopped in conjunction, so that the water purification system 2000 stops normal filtration, and then the high-salinity waste water in the reflux replacement filtration waste water valve 610 is opened. Facilitates the switching and control of the two flow path states.
可选地，如图14、图15所示，净水***2000还包括：串联连接在纯水管500上的第一单向阀520。此第一单向阀520保证从第二过滤件20中过滤后的饮用水流向最终的用水端，而不倒流，使得净水***2000运行稳定可靠。Optionally, as shown in FIGS. 14 and 15, the water purification system 2000 further includes: a first one-way valve 520 connected in series on the pure water pipe 500. The first one-way valve 520 ensures that the drinking water filtered from the second filter 20 flows to the final water end without reverse flow, so that the water purification system 2000 operates stably and reliably.
在本申请的一些示例中，如图14、图15所示，净水***2000还包括：串联连接在废水管600上的第二单向阀630，第二单向阀630位于第二转换管800在废水管600上的连接点与废水阀610之间。此第二单向阀630保证在正常过滤时从废水管600前端流出的高盐度废水始终朝向废水阀610流出，而不倒流；保证在置换废水阀610时从第二转换管800流出的低盐度的前置出水始终朝向废水阀620流出，而不倒流，保证了净水***2000运行稳定可靠，各管路***不发生干扰。In some examples of the present application, as shown in FIGS. 14 and 15, the water purification system 2000 further includes: a second one-way valve 630 connected in series to the waste water pipe 600, and the second one-way valve 630 is located in the second conversion pipe 800 is between the connection point on the waste water pipe 600 and the waste water valve 610. This second one-way valve 630 ensures that the high-salinity waste water flowing out from the front end of the waste water pipe 600 during normal filtration always flows toward the waste water valve 610 without reverse flow; it ensures that the low outflow from the second conversion pipe 800 when replacing the waste water valve 610 The pre-salted water of the salinity always flows toward the waste water valve 620 without reverse flow, which ensures the stable and reliable operation of the water purification system 2000 and the interference of each pipeline system.
可选地，废水阀610为可调废水阀。Optionally, the waste water valve 610 is an adjustable waste water valve.
在一些示例中，废水阀610为累计制冲洗。即当废液累计到一定量时，或正常过滤净化制水总时间累计到一定时间时，控制***控制废水阀610开启一次。In some examples, the waste water valve 610 is a cumulative flush. That is, when the waste liquid accumulates to a certain amount, or when the total time for normal filtration and purification of water production accumulates to a certain time, the control system controls the waste water valve 610 to open once.
在一些示例中，废水阀610为待机冲洗。In some examples, the waste water valve 610 is a standby flush.
可选地，在第二转换管800上，设有第三转换控制阀810。第三转换控制阀810可控制第二转换管800的水路流通或切断。在正常过滤制水时，第三转换控制阀810中为 高盐度的废水；在反冲洗置换时，第三转换控制阀810中为低盐度的前置出水。第三转换阀810为普通废水电磁阀，其为单向出废水保压，反向直排的形式。Optionally, a third switching control valve 810 is provided on the second switching tube 800. The third switching control valve 810 can control the flow path of the second switching tube 800 or cut off. During normal filtration of water production, the third switching control valve 810 is high salinity wastewater; during backwashing replacement, the third switching control valve 810 is low salinity pre-effluent. The third switching valve 810 is a common waste water solenoid valve, which is in the form of one-way outflow waste water holding pressure and reverse straight discharge.
为更好理解本申请实施例的方案，下面结合图1-图18描述本申请的具体实施例中复合滤芯组件1000的流道结构、复合滤芯组件1000和净水***2000。To better understand the solution of the embodiment of the present application, the flow channel structure of the composite filter element assembly 1000, the composite filter element assembly 1000 and the water purification system 2000 in the specific embodiment of the present application will be described below with reference to FIGS. 1-18.
实施例1Example 1
下述具体实施例以净化自来水为例来讲述复合滤芯组件1000的三级过滤功能，并说明复合滤芯组件1000的高度集成化一体设计结构。另外，第一过滤件10作为初级过滤件为例进行说明；第三过滤件30以作为中间过滤为例进行说明。第二过滤件20作为终级过滤为例进行说明。The following specific embodiments use purified tap water as an example to describe the three-stage filtration function of the composite filter element assembly 1000, and explain the highly integrated integrated design structure of the composite filter element assembly 1000. In addition, the first filter 10 will be described as an example of the primary filter; the third filter 30 will be described as an example of intermediate filter. The second filter 20 will be described as an example of final filtration.
如图1、图2所示，一种复合滤芯组件1000的流道结构，整个复合滤芯组件1000常态下呈竖直状态装设。包括壳体300，以及在壳体300中沿轴向间隔开设置的第一过滤单元100和第二过滤单元200，第一过滤单元100和第二过滤单元200之间设有过渡流道24连通。As shown in FIGS. 1 and 2, in a flow channel structure of a composite filter element assembly 1000, the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
第一过滤单元100内沿径向由外到内依次设置有层叠布置的第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22。第一过滤通道13内设有无纺布、聚丙烯层、碳纤维和间隔支架49卷制而成的卷筒型的第一过滤件10。第一过滤件10作为自来水的初滤单元，间隔支架49支设在第二均布流道12内。In the first filtering unit 100, a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22. The first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49. The first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
如图2所示，第一均布流道11与第二均布流道12通过第一过滤通道13连通，第一均布流道11连接自来水原水的第一进出口101，第二均布流道12连接第二进出口102，经过第一过滤件10过滤后的前置水从第二进出口102流出。As shown in FIG. 2, the first uniformly distributed flow channel 11 and the second uniformly distributed flow channel 12 communicate with each other through the first filter channel 13. The first uniformly distributed flow channel 11 is connected to the first inlet and outlet 101 of tap water raw water, and the second uniformly distributed flow channel 11 The flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
如图2所示，第二过滤通道23内设有中空的碳棒作为第二过滤件20。第二过滤件20作为饮用水出水前的终滤单元。第三均布流道21与第四均布流道22通过第二过滤通道23连通。第三均布流道21连接过渡流道24，第四均布流道22连接第三进出口201，第三进出口201作为饮用水的最终出口。As shown in FIG. 2, a hollow carbon rod is provided in the second filter channel 23 as the second filter 20. The second filter 20 serves as a final filtering unit before drinking water is discharged. The third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with each other through the second filter channel 23. The third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
第二均布流道12与第三均布流道21之间通过水路间隔筒46间隔开。第一过滤单元100内设有第一内端盖41、第一外端盖42、第二中端盖45、第二内端盖43、第二外端盖44，第一内端盖41封在第二过滤通道23和第四均布流道22的朝向第二过滤单元200的端面。第一外端盖42封在第一过滤通道13、第二均布流道12的朝向第二过滤单元200的端面。第一内端盖41的底部和第一外端盖42的顶部之间形成有一定间隙。第 一外端盖42与水路间隔筒46的底部相连且两者为一体成型。第二外端盖44封在第一过滤通道13的远离第二过滤单元200的端面，第二内端盖43封在第二过滤通道23的远离第二过滤单元200的端面。第二外端盖44和第二内端盖43之间还套有第二中端盖45，第二中端盖45和第二外端盖44之间的流路连通第二进出口102。The second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46. The first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200. The first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42. The first outer end cap 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed. The second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200. A second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
如图2、图3、图4所示，第二过滤单元200内设有由侧流反渗透膜组件构成的第三过滤件30，第三过滤件30作为碳滤之前的中间过滤。第二过滤单元200内沿径向由外到内依次设置有第五均布流道31、第三过滤通道32，第三过滤通道32环绕过滤水流通腔和废水流通腔设置，第三过滤通道32内设有第三过滤件30，废水流通腔与第五均布流道31通过第三过滤通道32连通，废水流通腔还连通了反渗透膜组件中的废水集管34，第五均布流道31连通第四进出口302，第四进出口302与第二进出口102之间通过外部管路连通，且在前置水进入第四进出口302之前，需进行加压。第二过滤单元200内设有过滤水流通腔和废水流通腔，过滤水流通腔和废水流通腔之间设有过滤膜35，过滤水流通腔连通过渡流道24，过渡流道24连通反渗透膜组件的中心管33，废水流通腔连通第五进出口301，第五进出口301作为反渗透膜组件净化前置水后的废水排出口。As shown in FIGS. 2, 3, and 4, the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module. The third filter 30 serves as an intermediate filter before carbon filtration. In the second filter unit 200, a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction. The third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage The third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution The flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required. The second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber. A filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber. The filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis The central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
如图5、图6、图7、图8、图9所示，第二过滤单元200内设有第三端盖47和第四端盖48。第三端盖47封在第三过滤通道32和废水流通腔的朝向第一过滤单元100的一端，第四端盖48封在第三过滤通道32和过滤水流通腔的远离第一过滤单元100的一端。第三端盖47和第四端盖48之间支设了五根废水集管34，第四端盖48的中部支撑中心管33的底端，第三端盖47的中部设有过孔，过孔中设有相互嵌套的第二插管471和第三插管472，中心管33的顶端与第三插管472连接，第二插管471与过渡流道24连接。As shown in FIGS. 5, 6, 7, 8, and 9, the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48. The third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end. Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48. The middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole. A second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
这里，第一过滤单元100为低压部，内部均布流道和过滤通道的水压较低。而第二过滤单元200为高压部，内部均布流道和过滤通道的水压较高。从第二进出口102排出的水，在经泵增压后，流向第四进出口302。Here, the first filter unit 100 is a low-pressure part, and the water pressure of the uniform distribution channel and the filter channel is low. The second filter unit 200 is a high-pressure part, and the water pressure of the uniform distribution channel and the filter channel is high. The water discharged from the second inlet and outlet 102 flows to the fourth inlet and outlet 302 after being pressurized by the pump.
整个自来水的过滤过程为，自来水从第一进出口101进入第一均布流道11，并向径向内侧流动，经过第一过滤件10的过滤后流向第二均布流道12，并从上部的第二进出口102作为前置水流出。流出后的前置水经过加压并泵入第四进出口302，并在第五均布流道31中均布，从侧流反渗透节水膜的侧向流入并由第三过滤件30过滤，高盐度的废水由废水集管34收集并从第五进出口301排出，纯水则由中心管33向上收集穿过过渡流道24。纯水从过渡流道24进入第三均布流道21，并经第二过滤件20过滤，进入第四均布流道22，并从第三进出口201流出饮用。The entire tap water filtration process is that tap water enters the first uniform flow channel 11 from the first inlet and outlet 101 and flows radially inward, and after filtering by the first filter 10, flows to the second uniform flow channel 12 and from The upper second inlet / outlet 102 flows out as pre-water. The outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform flow channel 31, flowing in from the side of the lateral flow reverse osmosis water-saving membrane and passed by the third filter 30 After filtering, the high-salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet and outlet 301, and the pure water is collected by the central tube 33 and passes through the transition channel 24. The pure water enters the third uniform distribution channel 21 from the transition channel 24, and is filtered by the second filter 20, enters the fourth uniform distribution channel 22, and flows out of the third inlet 201 for drinking.
实施例2Example 2
一种净水***2000，包括：复合滤芯组件1000、进水管400、纯水管500、高压开关510、第一单向阀520、废水管600、废水阀610、第一转换管700、增压泵710、第二转换控制阀720和水龙头900。A water purification system 2000 includes: a composite filter element assembly 1000, a water inlet pipe 400, a pure water pipe 500, a high-pressure switch 510, a first check valve 520, a waste water pipe 600, a waste water valve 610, a first conversion pipe 700, a boost The pump 710, the second switching control valve 720 and the faucet 900.
如图13、图16所示，一种复合滤芯组件1000，整个复合滤芯组件1000常态下呈竖直状态装设。包括壳体300，以及在壳体300中沿轴向间隔开设置的第一过滤单元100和第二过滤单元200，第一过滤单元100和第二过滤单元200之间设有过渡流道24连通。As shown in FIG. 13 and FIG. 16, a composite filter element assembly 1000, the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
第一过滤单元100内沿径向由外到内依次设置有层叠布置的第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22。第一过滤通道13内设有无纺布、聚丙烯层、碳纤维和间隔支架49卷制而成的卷筒型的第一过滤件10。第一过滤件10作为自来水的初滤单元，间隔支架49支设在第二均布流道12内。In the first filtering unit 100, a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22. The first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49. The first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
如图16所示，第一均布流道11与第二均布流道12通过第一过滤通道13连通，第一均布流道11连接自来水原水的第一进出口101，第二均布流道12连接第二进出口102，经过第一过滤件10过滤后的前置水从第二进出口102流出。As shown in FIG. 16, the first uniform flow channel 11 and the second uniform flow channel 12 communicate with each other through the first filter channel 13. The first uniform flow channel 11 is connected to the first inlet 101 of the tap water raw water, and the second uniform distribution channel 11 The flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
如图16所示，第二过滤通道23内设有中空的碳棒作为第二过滤件20。第二过滤件20作为饮用水出水前的终滤单元。第三均布流道21与第四均布流道22通过第二过滤通道23连通。第三均布流道21连接过渡流道24，第四均布流道22连接第三进出口201，第三进出口201作为饮用水的最终出口。As shown in FIG. 16, a hollow carbon rod is provided in the second filter channel 23 as the second filter 20. The second filter 20 serves as a final filtering unit before drinking water is discharged. The third uniform flow channel 21 and the fourth uniform flow channel 22 communicate with each other through the second filter channel 23. The third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
第二均布流道12与第三均布流道21之间通过水路间隔筒46间隔开。第一过滤单元100内设有第一内端盖41、第一外端盖42、第二中端盖45、第二内端盖43、第二外端盖44，第一内端盖41封在第二过滤通道23和第四均布流道22的朝向第二过滤单元200的端面。第一外端盖42封在第一过滤通道13、第二均布流道12的朝向第二过滤单元200的端面。第一内端盖41的底部和第一外端盖42的顶部之间形成有一定间隙。第一外端盖42与水路间隔筒46的底部相连且两者为一体成型。第二外端盖44封在第一过滤通道13的远离第二过滤单元200的端面，第二内端盖43封在第二过滤通道23的远离第二过滤单元200的端面。第二外端盖44和第二内端盖43之间还套有第二中端盖45，第二中端盖45和第二外端盖44之间的流路连通第二进出口102。The second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46. The first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200. The first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42. The first outer end cover 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed. The second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200. A second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
如图16、图17、图18所示，第二过滤单元200内设有由侧流反渗透膜组件构成的第三过滤件30，第三过滤件30作为碳滤之前的中间过滤。第二过滤单元200内沿径向 由外到内依次设置有第五均布流道31、第三过滤通道32，第三过滤通道32环绕过滤水流通腔和废水流通腔设置，第三过滤通道32内设有第三过滤件30，废水流通腔与第五均布流道31通过第三过滤通道32连通，废水流通腔还连通了反渗透膜组件中的废水集管34，第五均布流道31连通第四进出口302，第四进出口302与第二进出口102之间通过外部管路连通，且在前置水进入第四进出口302之前，需进行加压。第二过滤单元200内设有过滤水流通腔和废水流通腔，过滤水流通腔和废水流通腔之间设有过滤膜35，过滤水流通腔连通过渡流道24，过渡流道24连通反渗透膜组件的中心管33，废水流通腔连通第五进出口301，第五进出口301作为反渗透膜组件净化前置水后的废水排出口。As shown in FIG. 16, FIG. 17 and FIG. 18, the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module. The third filter 30 serves as an intermediate filter before carbon filtration. In the second filter unit 200, a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction. The third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage The third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution The flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required. The second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber. A filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber. The filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis The central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
如图5、图6、图7、图8、图9、图10、图11、图12所示，第二过滤单元200内设有第三端盖47和第四端盖48。第三端盖47封在第三过滤通道32和废水流通腔的朝向第一过滤单元100的一端，第四端盖48封在第三过滤通道32和过滤水流通腔的远离第一过滤单元100的一端。第三端盖47和第四端盖48之间支设了五根废水集管34，第四端盖48的中部支撑中心管33的底端，第三端盖47的中部设有过孔，过孔中设有相互嵌套的第二插管471和第三插管472，中心管33的顶端与第三插管472连接，第二插管471与过渡流道24连接。As shown in FIGS. 5, 6, 7, 8, 9, 10, 11, and 12, the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48. The third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end. Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48. The middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole. A second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
如图13、图16所示，复合滤芯组件1000的壳体上盖310上设有可进自来水的第一进出口101，第一进出口101连接自来水的进水管400。As shown in FIGS. 13 and 16, the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a first inlet 101 for tap water, and the first inlet 101 is connected to a water inlet pipe 400 for tap water.
复合滤芯组件1000的壳体上盖310上设有可出高品质纯水的第三进出口201，第三进出口201连接纯水管500的一端。靠近第三进出口201的纯水管500上设有第一单向阀520，纯水管500上还设有一个高压开关510，纯水管500的末端连通出水的水龙头900。The upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a third inlet 201 that can output high-quality pure water, and the third inlet 201 is connected to one end of the pure water pipe 500. A first check valve 520 is provided on the pure water pipe 500 near the third inlet 201. A high-pressure switch 510 is also provided on the pure water pipe 500, and the end of the pure water pipe 500 is connected to the faucet 900 for water.
复合滤芯组件1000的壳体上盖310上设有可出前置水的第二进出口102，第二进出口102连接第一转换管700的一端。The upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a second inlet and outlet 102 that can supply pre-water, and the second inlet and outlet 102 is connected to one end of the first conversion tube 700.
复合滤芯组件1000的壳体下盖320上设有可进反渗透前置水的第四进出口302，第四进出口302连接第一转换管700的另一端。第一转换管700上串联设有增压泵710和第二转换控制阀720，且第二转换控制阀720位于靠近第二进出口102的一端。高压开关510和第二转换控制阀720电连接。The lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fourth inlet 302 into which reverse osmosis pre-water can enter. The fourth inlet 302 is connected to the other end of the first conversion tube 700. The first switching tube 700 is provided with a booster pump 710 and a second switching control valve 720 in series, and the second switching control valve 720 is located at an end close to the second inlet and outlet 102. The high-pressure switch 510 and the second switching control valve 720 are electrically connected.
复合滤芯组件1000的壳体下盖320上设有可排出反渗透过滤时的高盐度废水的第五进出口301，第五进出口的一端连通废水管600，废水管600上设有废水阀610。其中废水阀610采用累计制冲洗的可调废水阀。The lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fifth inlet and outlet 301 that can discharge high salinity waste water during reverse osmosis filtration. One end of the fifth inlet and outlet is connected to the waste water pipe 600. 610. Among them, the waste water valve 610 adopts an adjustable waste water valve for flushing.
整个自来水的过滤过程为，保持第二转换控制阀720、增压泵710、第一单向阀520、高压开关510开启。自来水从进水管400进入，并由第一进出口101进入第一均布流道11，并向径向内侧流动，经过第一过滤件10(以无纺布、聚丙烯层、碳纤维和间隔支架49卷制而成的卷筒型的初级过滤件)的过滤后流向第二均布流道12，并从上部的第二进出口102作为前置水流出进入到第一转换管700中。The entire tap water filtration process is to keep the second switching control valve 720, booster pump 710, first check valve 520, and high pressure switch 510 open. The tap water enters from the inlet pipe 400 and enters the first uniform flow channel 11 from the first inlet and outlet 101, and flows radially inward, passing through the first filter element 10 (with nonwoven fabric, polypropylene layer, carbon fiber, and spacer bracket 49 is a roll-shaped primary filter element after being filtered, flows to the second uniform distribution channel 12, and flows out from the second inlet and outlet 102 at the upper part as pre-water into the first conversion tube 700.
流出后的前置水经过增压并泵入第四进出口302，并在第五均布流道31中均布，从第三过滤件30(侧流反渗透节水膜)的侧面周向流入并由第三过滤件30过滤，高盐度的废水由废水集管34收集并从第五进出口301排出到废水管600中，在累计到一定时间或废液量后，废水阀610开启一次排液。纯水则由中心管33向上收集穿过过渡口332。纯水从过渡口332进入第三均布流道21，并经第二过滤件20(碳筒)过滤，进入第四均布流道22，并从第三进出口201流出到纯水管500上，经过第一单向阀520后流出到水龙头900，供用户饮用。The outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform distribution channel 31, from the side of the third filter 30 (side flow reverse osmosis water-saving membrane) Inflow and filtering by the third filter 30, high salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet 301 to the wastewater pipe 600, after a certain time or the amount of waste liquid is accumulated, the wastewater valve 610 opens Discharge once. The pure water is collected by the central tube 33 upward and passes through the transition port 332. Pure water enters the third uniform flow channel 21 from the transition port 332, and is filtered by the second filter 20 (carbon cartridge), enters the fourth uniform distribution channel 22, and flows out from the third inlet 201 to the pure water pipe 500 On the first, after the first one-way valve 520 flows out to the faucet 900 for the user to drink.
实施例3Example 3
如图14和图15所示，一种净水***2000，包括：复合滤芯组件1000、进水管400、纯水管500、高压开关510、第一单向阀520、废水管600、废水阀610、第一转换控制阀620、第二单向阀630、第一转换管700、增压泵710、第二转换控制阀720、第二转换管800、第三转换控制阀810和水龙头900。As shown in FIGS. 14 and 15, a water purification system 2000 includes: a composite filter element assembly 1000, an inlet pipe 400, a pure water pipe 500, a high-pressure switch 510, a first check valve 520, a waste pipe 600, and a waste valve 610 The first switching control valve 620, the second check valve 630, the first switching tube 700, the booster pump 710, the second switching control valve 720, the second switching tube 800, the third switching control valve 810, and the faucet 900.
如图14、图15所示，一种复合滤芯组件1000，整个复合滤芯组件1000常态下呈竖直状态装设。包括壳体300，以及在壳体300中沿轴向间隔开设置的第一过滤单元100和第二过滤单元200，第一过滤单元100和第二过滤单元200之间设有过渡流道24连通。As shown in FIG. 14 and FIG. 15, a composite filter element assembly 1000, the entire composite filter element assembly 1000 is normally installed in a vertical state. It includes a housing 300, and a first filter unit 100 and a second filter unit 200 that are spaced apart in the axial direction in the housing 300, and a transition flow channel 24 is provided between the first filter unit 100 and the second filter unit 200 to communicate .
第一过滤单元100内沿径向由外到内依次设置有层叠布置的第一均布流道11、第一过滤通道13、第二均布流道12、第三均布流道21、第二过滤通道23和第四均布流道22。第一过滤通道13内设有无纺布、聚丙烯层、碳纤维和间隔支架49卷制而成的卷筒型的第一过滤件10。第一过滤件10作为自来水的初滤单元，间隔支架49支设在第二均布流道12内。In the first filtering unit 100, a first uniformly distributed flow channel 11, a first filter channel 13, a second uniformly distributed flow channel 12, a third uniformly distributed flow channel 21, a third The second filter channel 23 and the fourth uniform distribution channel 22. The first filter channel 13 is provided with a roll-shaped first filter element 10 rolled by a non-woven fabric, a polypropylene layer, carbon fiber, and a spacer 49. The first filter element 10 serves as a preliminary filtering unit for tap water, and a spacer 49 is supported in the second uniform flow channel 12.
如图15所示，第一均布流道11与第二均布流道12通过第一过滤通道13连通，第一均布流道11连接自来水原水的第一进出口101，第二均布流道12连接第二进出口102，经过第一过滤件10过滤后的前置水从第二进出口102流出。As shown in FIG. 15, the first uniformly distributed flow channel 11 and the second uniformly distributed flow channel 12 communicate with each other through the first filter channel 13, the first uniformly distributed flow channel 11 is connected to the first inlet and outlet 101 of tap water raw water, and the second uniformly distributed flow channel 11 The flow channel 12 is connected to the second inlet and outlet 102, and the pre-water filtered by the first filter 10 flows out from the second inlet and outlet 102.
如图15所示，第二过滤通道23内设有中空的碳棒作为第二过滤件20。第二过滤件20作为饮用水出水前的终滤单元。第三均布流道21与第四均布流道22通过第二过滤 通道23连通。第三均布流道21连接过渡流道24，第四均布流道22连接第三进出口201，第三进出口201作为饮用水的最终出口。As shown in FIG. 15, a hollow carbon rod is provided in the second filter channel 23 as the second filter 20. The second filter 20 serves as a final filtering unit before drinking water is discharged. The third uniform distribution channel 21 and the fourth uniform distribution channel 22 communicate with each other through the second filtering channel 23. The third uniform distribution channel 21 is connected to the transition channel 24, and the fourth uniform distribution channel 22 is connected to the third inlet 201, which serves as the final outlet of drinking water.
第二均布流道12与第三均布流道21之间通过水路间隔筒46间隔开。第一过滤单元100内设有第一内端盖41、第一外端盖42、第二中端盖45、第二内端盖43、第二外端盖44，第一内端盖41封在第二过滤通道23和第四均布流道22的朝向第二过滤单元200的端面。第一外端盖42封在第一过滤通道13、第二均布流道12的朝向第二过滤单元200的端面。第一内端盖41的底部和第一外端盖42的顶部之间形成有一定间隙。第一外端盖42与水路间隔筒46的底部相连且两者为一体成型。第二外端盖44封在第一过滤通道13的远离第二过滤单元200的端面，第二内端盖43封在第二过滤通道23的远离第二过滤单元200的端面。第二外端盖44和第二内端盖43之间还套有第二中端盖45，第二中端盖45和第二外端盖44之间的流路连通第二进出口102。The second uniformly distributed flow path 12 and the third uniformly distributed flow path 21 are spaced apart by a waterway spacer 46. The first filter unit 100 is provided with a first inner end cap 41, a first outer end cap 42, a second middle end cap 45, a second inner end cap 43, a second outer end cap 44, and the first inner end cap 41 is sealed At the end surfaces of the second filter channel 23 and the fourth uniform flow channel 22 facing the second filter unit 200. The first outer end cover 42 is sealed on the end surfaces of the first filter channel 13 and the second uniform flow channel 12 facing the second filter unit 200. A certain gap is formed between the bottom of the first inner end cover 41 and the top of the first outer end cover 42. The first outer end cover 42 is connected to the bottom of the waterway spacer 46 and the two are integrally formed. The second outer end cap 44 is sealed on the end surface of the first filter channel 13 away from the second filter unit 200, and the second inner end cap 43 is sealed on the end surface of the second filter channel 23 away from the second filter unit 200. A second middle end cap 45 is also sleeved between the second outer end cap 44 and the second inner end cap 43, and the flow path between the second middle end cap 45 and the second outer end cap 44 communicates with the second inlet 102.
如图15、图16、图17所示，第二过滤单元200内设有由侧流反渗透膜组件构成的第三过滤件30，第三过滤件30作为碳滤之前的中间过滤。第二过滤单元200内沿径向由外到内依次设置有第五均布流道31、第三过滤通道32，第三过滤通道32环绕过滤水流通腔和废水流通腔设置，第三过滤通道32内设有第三过滤件30，废水流通腔与第五均布流道31通过第三过滤通道32连通，废水流通腔还连通了反渗透膜组件中的废水集管34，第五均布流道31连通第四进出口302，第四进出口302与第二进出口102之间通过外部管路连通，且在前置水进入第四进出口302之前，需进行加压。第二过滤单元200内设有过滤水流通腔和废水流通腔，过滤水流通腔和废水流通腔之间设有过滤膜35，过滤水流通腔连通过渡流道24，过渡流道24连通反渗透膜组件的中心管33，废水流通腔连通第五进出口301，第五进出口301作为反渗透膜组件净化前置水后的废水排出口。As shown in FIG. 15, FIG. 16 and FIG. 17, the second filter unit 200 is provided with a third filter 30 composed of a lateral flow reverse osmosis membrane module. The third filter 30 serves as an intermediate filter before carbon filtration. In the second filter unit 200, a fifth uniform flow channel 31 and a third filter channel 32 are provided in this order from outside to inside in the radial direction. The third filter channel 32 is disposed around the filtered water circulation chamber and the waste water circulation chamber, and the third filter passage The third filter 30 is provided in the 32, the waste water circulation cavity and the fifth uniform distribution channel 31 are communicated through the third filter channel 32, and the waste water circulation cavity is also connected to the wastewater header 34 in the reverse osmosis membrane module, the fifth uniform distribution The flow channel 31 communicates with the fourth inlet and outlet 302, and the fourth inlet and outlet 302 and the second inlet and outlet 102 are communicated through an external pipeline, and before the pre-water enters the fourth inlet and outlet 302, pressurization is required. The second filter unit 200 is provided with a filtered water circulation chamber and a waste water circulation chamber. A filter membrane 35 is provided between the filtered water circulation chamber and the waste water circulation chamber. The filtered water circulation chamber communicates with the transition channel 24, and the transition channel 24 communicates with reverse osmosis The central pipe 33 of the membrane module and the waste water circulation cavity communicate with the fifth inlet 301, and the fifth inlet 301 serves as a waste water outlet for the reverse osmosis membrane module to purify the pre-water.
如图5、图6、图7、图8、图18所示，第二过滤单元200内设有第三端盖47和第四端盖48。第三端盖47封在第三过滤通道32和废水流通腔的朝向第一过滤单元100的一端，第四端盖48封在第三过滤通道32和过滤水流通腔的远离第一过滤单元100的一端。第三端盖47和第四端盖48之间支设了五根废水集管34，第四端盖48的中部支撑中心管33的底端，第三端盖47的中部设有过孔，过孔中设有相互嵌套的第二插管471和第三插管472，中心管33的顶端与第三插管472连接，第二插管471与过渡流道24连接。As shown in FIGS. 5, 6, 7, 8, and 18, the second filter unit 200 is provided with a third end cap 47 and a fourth end cap 48. The third end cap 47 is sealed at the end of the third filter channel 32 and the waste water circulation cavity facing the first filter unit 100, and the fourth end cap 48 is sealed at the third filter channel 32 and the end of the filtered water circulation cavity away from the first filter unit 100 At the end. Five wastewater headers 34 are supported between the third end cover 47 and the fourth end cover 48. The middle of the fourth end cover 48 supports the bottom end of the central tube 33, and the middle of the third end cover 47 is provided with a through hole. A second cannula 471 and a third cannula 472 nested in each other are provided in the through hole, the top end of the central tube 33 is connected to the third cannula 472, and the second cannula 471 is connected to the transition flow channel 24.
如图14-图16所示，复合滤芯组件1000的壳体上盖310上设有可进自来水的第一进出口101，第一进出口101连接自来水的进水管400。As shown in FIGS. 14-16, the upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a first inlet 101 for tap water, and the first inlet 101 is connected to the inlet pipe 400 for tap water.
复合滤芯组件1000的壳体上盖310上设有可出高品质纯水的第三进出口201，第三 进出口201连接纯水管500的一端。靠近第三进出口201的纯水管500上设有第一单向阀520。纯水管500上还设有一个高压开关510。纯水管500的末端连通出水的水龙头900。The upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a third inlet 201 that can output high-quality pure water. A first check valve 520 is provided on the pure water pipe 500 near the third inlet 201. A high-pressure switch 510 is also provided on the pure water pipe 500. The end of the pure water pipe 500 communicates with the water tap 900.
复合滤芯组件1000的壳体上盖310上设有可出前置水的第二进出口102，第二进出口102连接第一转换管700的一端。The upper cover 310 of the housing of the composite filter element assembly 1000 is provided with a second inlet and outlet 102 that can supply pre-water, and the second inlet and outlet 102 is connected to one end of the first conversion tube 700.
复合滤芯组件1000的壳体下盖320上设有可进反渗透前置水的第四进出口302，第四进出口302连接第一转换管700的另一端。第一转换管700上串联设有增压泵710和第二转换控制阀720，且第二转换控制阀720靠近第二进出口102的一端。高压开关510和增压泵710电连接。The lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fourth inlet 302 into which reverse osmosis pre-water can enter. The fourth inlet 302 is connected to the other end of the first conversion tube 700. The first switching tube 700 is provided with a booster pump 710 and a second switching control valve 720 in series, and the second switching control valve 720 is close to one end of the second inlet and outlet 102. The high-pressure switch 510 and the booster pump 710 are electrically connected.
复合滤芯组件1000的壳体下盖320上设有可排出反渗透过滤时的高盐度废水的第五进出口301，第五进出口301的一端连通废水管600，废水管600上设有废水阀610。其中废水阀610采用累计制冲洗的可调废水阀。第一转换控制阀620位于废水阀610与第五进出口301之间。The lower cover 320 of the housing of the composite filter element assembly 1000 is provided with a fifth inlet and outlet 301 that can discharge high salinity wastewater during reverse osmosis filtration. One end of the fifth inlet and outlet 301 communicates with the wastewater pipe 600, and the wastewater pipe 600 is provided with wastewater Valve 610. Among them, the waste water valve 610 adopts an adjustable waste water valve for flushing. The first switching control valve 620 is located between the waste water valve 610 and the fifth inlet and outlet 301.
作为支路的第二转换管800分别连接第一转换管700和废水管600，第二转换管800与废水管600的连接点位于废水阀610和第一转换控制阀620之间，第二转换管800与第一转换管700的连接点位于增压泵710和第二转换控制阀720之间。在第二转换管800上，设有第三转换控制阀810。The second conversion pipe 800 as a branch is connected to the first conversion pipe 700 and the waste water pipe 600 respectively. The connection point of the second conversion pipe 800 and the waste water pipe 600 is located between the waste water valve 610 and the first conversion control valve 620. The connection point of the tube 800 and the first switching tube 700 is located between the booster pump 710 and the second switching control valve 720. A third switching control valve 810 is provided on the second switching tube 800.
第二单向阀630位于第二转换管800在废水管600上的连接点与废水阀610之间。The second one-way valve 630 is located between the connection point of the second switching tube 800 on the waste water pipe 600 and the waste water valve 610.
整个自来水的过滤净水过程为，保持第一转换控制阀620、第二转换控制阀720、增压泵710、第一单向阀520、第二单向阀630、高压开关510、第三转换控制阀810开启。自来水从进水管400进入，并由第一进出口101进入第一均布流道11，并向径向内侧流动，经过第一过滤件10(以无纺布、聚丙烯层、碳纤维和间隔支架49卷制而成的卷筒型的初级过滤件)的过滤后流向第二均布流道12，并从上部的第二进出口102作为前置水流出进入到第一转换管700中。The entire tap water filtration and purification process is to maintain the first switching control valve 620, the second switching control valve 720, the booster pump 710, the first check valve 520, the second check valve 630, the high-pressure switch 510, the third switching The control valve 810 opens. The tap water enters from the water inlet pipe 400, enters the first uniform flow channel 11 from the first inlet and outlet 101, and flows radially inward, passing through the first filter 10 (with nonwoven fabric, polypropylene layer, carbon fiber, and spacer bracket) 49 is a roll-shaped primary filter element after being filtered, flows to the second uniform distribution channel 12, and flows out from the second inlet and outlet 102 at the upper part as pre-water into the first conversion tube 700.
流出后的前置水经过增压并泵入第四进出口302，并在第五均布流道31中均布，从第三过滤件30(侧流反渗透节水膜)的侧面周向流入并由第三过滤件30过滤，高盐度的废水由废水集管34收集并从第五进出口301排出到废水管600中，在累计到一定时间或废液量后，废水阀610开启一次排液。其中一部分高盐度的废水从第二转换管800中进入，并回流到增压泵710之前，提高了纯水的回收率。纯水则由中心管33向上收集穿过过渡口332。纯水从过渡口332进入第三均布流道21，并经第二过滤件20(炭筒)过滤，进入第四均布流道22，并从第三进出口201流出到纯水管500上，经过第 一单向阀520后流出到水龙头900，供用户饮用。The outgoing pre-water is pressurized and pumped into the fourth inlet and outlet 302, and is evenly distributed in the fifth uniform distribution channel 31, circumferentially from the side of the third filter 30 (side flow reverse osmosis water-saving membrane) Inflow and filtering by the third filter 30, high salinity wastewater is collected by the wastewater header 34 and discharged from the fifth inlet 301 to the wastewater pipe 600, after a certain time or the amount of waste liquid is accumulated, the wastewater valve 610 opens Discharge once. A part of the high-salinity wastewater enters the second conversion tube 800 and returns to the booster pump 710 before it improves the recovery rate of pure water. The pure water is collected by the central tube 33 upward and passes through the transition port 332. Pure water enters the third uniform flow channel 21 from the transition port 332, and is filtered by the second filter 20 (charcoal cartridge), enters the fourth uniform distribution channel 22, and flows out from the third inlet 201 to the pure water pipe 500 On the first, after the first one-way valve 520 flows out to the faucet 900 for the user to drink.
过滤完成时，关闭第一转换控制阀620，在自来水压的推动下置换废水阀610中高盐度的水，此过程持续15～20秒，保证废水阀610无电导率超高水的残留，此置换水为初滤后的前置出水。When the filtration is completed, the first switching control valve 620 is closed, and the high salinity water in the waste water valve 610 is replaced by the tap water pressure. This process lasts 15 to 20 seconds to ensure that the waste water valve 610 has no residual water with high conductivity. The replacement water is the pre-outlet water after the initial filtration.
整个废水阀610的冲洗过程为，关闭增压泵710、第一转换控制阀620使净水过滤停止，保持第二转换控制阀720、第一单向阀520、第二单向阀630、高压开关510、第三转换控制阀810开启。此时从第二进出口102流出的前置水流出进入到第一转换管700中后直接流入第二转换管800中，并通到废水阀610前，开启废水阀610彻底置换高浓度的废水，防止废水阀610结垢。The entire flushing process of the waste water valve 610 is to close the booster pump 710 and the first switching control valve 620 to stop the filtration of purified water, and maintain the second switching control valve 720, the first check valve 520, the second check valve 630, and the high pressure The switch 510 and the third switching control valve 810 are opened. At this time, the pre-water flowing out of the second inlet and outlet 102 flows into the first conversion pipe 700 and then directly flows into the second conversion pipe 800, and before passing to the waste water valve 610, the waste water valve 610 is opened to completely replace the high-concentration waste water To prevent scaling of the waste water valve 610.
在本申请的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“竖直”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "top", "bottom", "inner", "outer", " The azimuth or positional relationship indicated by "axial", "radial", "vertical", etc. is based on the azimuth or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood in specific situations.
根据本申请实施例的复合滤芯组件1000的流道结构及净水***2000的其他构成例如各个过滤组件的过滤功能、各过滤组件的材质的选择对于本领域普通技术人员而言都是已知的，这里不再详细描述。The flow channel structure of the composite filter element assembly 1000 and other components of the water purification system 2000 according to the embodiments of the present application, such as the filtration function of each filter assembly and the selection of the material of each filter assembly, are known to those of ordinary skill in the art. , Will not be described in detail here.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the description referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means specific features described in conjunction with the embodiment or examples , Structure, material or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic expression of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。Although the embodiments of the present application have been shown and described, those of ordinary skill in the art may understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and purpose of the present application, The scope of the application is defined by the claims and their equivalents.

Claims (26)

  1. 一种复合滤芯组件的流道结构，其特征在于，包括：沿轴向间隔开设置的第一过滤单元和第二过滤单元，所述第一过滤单元具有第一进出口、第二进出口和第三进出口，所述第二过滤单元具有第四进出口，所述第一过滤单元和所述第二过滤单元之间设有过渡流道，其中，A flow channel structure of a composite filter element assembly is characterized by comprising: a first filter unit and a second filter unit spaced apart in the axial direction, the first filter unit having a first inlet and a second inlet and outlet A third inlet and outlet, the second filter unit has a fourth inlet and outlet, and a transition flow channel is provided between the first filter unit and the second filter unit, wherein,
    所述第一过滤单元内沿径向由外到内依次设置有第一均布流道、第一过滤通道、第二均布流道、第三均布流道、第二过滤通道和第四均布流道，所述第一过滤通道内设有第一过滤件，所述第二过滤通道内设有第二过滤件，所述第一均布流道与所述第二均布流道通过所述第一过滤通道连通，所述第三均布流道与所述第四均布流道通过所述第二过滤通道连通，所述第二均布流道与所述第三均布流道之间隔绝不流通，所述第一均布流道连接所述第一进出口，所述第二均布流道连接所述第二进出口，所述第三均布流道和所述第四均布流道中的一个连接所述第三进出口，所述第三均布流道和所述第四均布流道中的另一个连接所述过渡流道；In the first filter unit, a first uniform flow channel, a first filter channel, a second uniform flow channel, a third uniform flow channel, a second filter channel, and a fourth A uniform flow channel, a first filter element is provided in the first filter channel, a second filter element is provided in the second filter channel, the first uniform flow channel and the second uniform flow channel Communicating through the first filter channel, the third uniform flow channel and the fourth uniform flow channel communicating through the second filter channel, the second uniform flow channel and the third uniform distribution channel The flow channels are isolated and do not circulate, the first uniform flow channel is connected to the first inlet and outlet, the second uniform flow channel is connected to the second inlet and outlet, the third uniform flow channel and all One of the fourth uniformly distributed flow channels is connected to the third inlet and outlet, and the other of the third uniformly distributed flow channels and the fourth uniformly distributed flow channels is connected to the transitional flow channel;
    所述第二过滤单元内设有第三过滤件。A third filter element is provided in the second filter unit.
  2. 根据权利要求1所述的复合滤芯组件的流道结构，其特征在于，所述第二过滤单元具有第五进出口，所述第二过滤单元内设有过滤水流通腔和废水流通腔，所述过滤水流通腔和所述废水流通腔之间设有过滤膜，所述过滤水流通腔连通所述过渡流道，所述废水流通腔连通所述第五进出口。The flow channel structure of the composite filter element assembly according to claim 1, wherein the second filter unit has a fifth inlet and outlet, and the second filter unit is provided with a filtered water circulation chamber and a waste water circulation chamber. A filter membrane is provided between the filtered water circulation cavity and the wastewater circulation cavity, the filtered water circulation cavity communicates with the transition flow channel, and the wastewater circulation cavity communicates with the fifth inlet and outlet.
  3. 根据权利要求2所述的复合滤芯组件的流道结构，其特征在于，所述第二过滤单元内沿径向由外到内依次设置有第五均布流道、第三过滤通道，所述第三过滤通道环绕所述过滤水流通腔和所述废水流通腔设置，所述第三过滤通道内设有所述第三过滤件，The flow channel structure of the composite filter element assembly according to claim 2, wherein a fifth uniformly distributed flow channel and a third filter channel are sequentially arranged in the second filter unit from the outside to the inside in the radial direction. A third filter channel is disposed around the filtered water circulation cavity and the wastewater circulation cavity, and the third filter element is provided in the third filter channel,
    所述废水流通腔与所述第五均布流道通过所述第三过滤通道连通，所述第五均布流道连通所述第四进出口。The waste water circulation cavity and the fifth uniform flow channel communicate with each other through the third filter channel, and the fifth uniform flow channel communicates with the fourth inlet and outlet.
  4. 根据权利要求1～3中任一项所述的复合滤芯组件的流道结构，其特征在于，所述第四均布流道为柱形，所述第一均布流道、所述第一过滤通道、所述第二均布流道、所述第三均布流道、所述第二过滤通道为依次层套设置的环形。The flow path structure of a composite filter element assembly according to any one of claims 1 to 3, wherein the fourth uniform flow path is cylindrical, and the first uniform flow path and the first The filter channel, the second uniformly distributed flow channel, the third uniformly distributed flow channel, and the second filter channel are annularly arranged in turn.
  5. 根据权利要求1～4中任一项所述的复合滤芯组件的流道结构，其特征在于，所述第一过滤单元内设有第一内端盖，所述第一内端盖封在所述第二过滤通道和所述第四均布流道的朝向所述第二过滤单元的端面，所述过渡流道与所述第三均布流道相连。The flow channel structure of a composite filter element assembly according to any one of claims 1 to 4, wherein a first inner end cover is provided in the first filter unit, and the first inner end cover is sealed in End surfaces of the second filter channel and the fourth uniformly distributed flow channel facing the second filter unit are connected to the third uniformly distributed flow channel.
  6. 根据权利要求1～5中任一项所述的复合滤芯组件的流道结构，其特征在于，所 述第一过滤单元内设有第一外端盖和水路间隔筒，所述第一外端盖封在所述第一过滤通道、所述第二均布流道的朝向所述第二过滤单元的端面，所述水路间隔筒与所述第一外端盖相连且间隔在所述第二均布流道和所述第三均布流道之间。The flow channel structure of the composite filter element assembly according to any one of claims 1 to 5, wherein a first outer end cover and a waterway spacer are provided in the first filter unit, and the first outer end The cover is sealed on an end surface of the first filtering channel and the second uniform flow channel facing the second filtering unit, and the waterway spacer is connected to the first outer end cover and spaced apart from the second Between the uniformly distributed flow channel and the third uniformly distributed flow channel.
  7. 根据权利要求1～6中任一项所述的复合滤芯组件的流道结构，其特征在于，所述第一过滤单元内设有第二内端盖和第二外端盖，所述第二外端盖封在所述第一过滤通道的远离所述第二过滤单元的端面，所述第二内端盖封在所述第二过滤通道的远离所述第二过滤单元的端面。The flow channel structure of a composite filter element assembly according to any one of claims 1 to 6, wherein a second inner end cap and a second outer end cap are provided in the first filter unit, and the second The outer end cap is sealed on the end surface of the first filter channel away from the second filter unit, and the second inner end cap is sealed on the end surface of the second filter channel away from the second filter unit.
  8. 根据权利要求3所述的复合滤芯组件的流道结构，其特征在于，还包括：第三端盖和第四端盖，所述第三端盖封在所述第三过滤通道和所述废水流通腔的朝向所述第一过滤单元的一端，所述第四端盖封在所述第三过滤通道和所述过滤水流通腔的远离所述第一过滤单元的一端。The flow channel structure of the composite filter element assembly according to claim 3, further comprising: a third end cap and a fourth end cap, the third end cap is sealed in the third filter channel and the wastewater An end of the flow chamber facing the first filter unit, the fourth end cap is sealed at an end of the third filter channel and the filtered water flow chamber away from the first filter unit.
  9. 根据权利要求2或3所述的复合滤芯组件的流道结构，其特征在于，所述第二过滤单元内设有中心管和多个废水集管，多个所述废水集管环绕所述中心管设置，所述过滤膜为反渗透膜片袋，所述反渗透膜片袋具有第一部分和第二部分，每一所述废水集管和所述中心管被至少一个所述反渗透膜片袋的第一部分隔开，多个所述反渗透膜片袋的所述第二部分形成围绕在所述中心管组的周围的多层薄膜组件，多个所述反渗透膜片袋卷制形成的筒体构成所述第三过滤件，所述中心管连通所述过渡流道且管壁上设有过滤水入孔，所述废水集管连通所述第五进出口且管壁上设有废水入孔。The flow channel structure of a composite filter element assembly according to claim 2 or 3, characterized in that the second filter unit is provided with a central tube and a plurality of wastewater headers, and the plurality of wastewater headers surround the center A tube is provided, and the filtration membrane is a reverse osmosis membrane bag, the reverse osmosis membrane bag has a first part and a second part, each of the wastewater header and the central tube is separated by at least one reverse osmosis membrane The first part of the bag is spaced apart, the second parts of the plurality of reverse osmosis membrane sheet bags form a multi-layer membrane module surrounding the central tube group, and the plurality of reverse osmosis membrane sheet bags are formed by rolling The cylindrical body constitutes the third filter element, the central tube communicates with the transition flow channel and a filter water inlet is provided on the tube wall, the wastewater header communicates with the fifth inlet and outlet and the tube wall is provided with Waste water enters the hole.
  10. 根据权利要求1～9中任一项所述的复合滤芯组件的流道结构，其特征在于，所述第一过滤单元内设有间隔支架，所述间隔支架设在所述第二均布流道内。The flow channel structure of a composite filter element assembly according to any one of claims 1 to 9, wherein a spacer bracket is provided in the first filter unit, and the spacer bracket is provided on the second uniform flow Inside.
  11. 一种净水***，其特征在于，包括：A water purification system, characterized in that it includes:
    复合滤芯组件，所述复合滤芯组件为根据权利要求1所述的复合滤芯组件的流道结构；A composite filter element assembly, which is a flow channel structure of the composite filter element assembly according to claim 1;
    进水管，所述进水管连接所述复合滤芯组件的所述第一进出口；An inlet pipe connected to the first inlet and outlet of the composite filter element assembly;
    纯水管，所述纯水管连接所述复合滤芯组件的所述第三进出口；A pure water pipe, the pure water pipe is connected to the third inlet and outlet of the composite filter element assembly;
    第一转换管，所述第一转换管分别连接所述第二进出口和所述第四进出口；A first conversion tube, the first conversion tube is connected to the second inlet and the fourth inlet respectively;
    增压泵，所述增压泵串联连接在所述第一转换管上。A booster pump connected in series to the first conversion tube.
  12. 根据权利要求11所述的净水***，其特征在于，还包括：第二转换控制阀，所述第二转换控制阀串联连接在所述第一转换管上。The water purification system according to claim 11, further comprising: a second switching control valve, the second switching control valve is connected in series to the first switching tube.
  13. 根据权利要求12所述的净水***，其特征在于，还包括：串联连接在所述纯水管上的高压开关，所述高压开关与所述第二转换控制阀电联接。The water purification system according to claim 12, further comprising: a high-pressure switch connected in series to the pure water pipe, the high-pressure switch being electrically connected to the second transfer control valve.
  14. 根据权利要求11～13中任一项所述的净水***，其特征在于，还包括：串联连 接在所述纯水管上的第一单向阀。The water purification system according to any one of claims 11 to 13, further comprising a first check valve connected in series to the pure water pipe.
  15. 根据权利要求11～14中任一项所述的净水***，其特征在于，所述第二过滤单元具有第五进出口，所述第二过滤单元内设有过滤水流通腔和废水流通腔，所述过滤水流通腔和所述废水流通腔之间设有过滤膜，所述过滤水流通腔连通所述过渡流道，所述废水流通腔连通所述第五进出口。The water purification system according to any one of claims 11 to 14, wherein the second filter unit has a fifth inlet and outlet, and the second filter unit is provided with a filtered water circulation chamber and a waste water circulation chamber A filter membrane is provided between the filtered water circulation cavity and the wastewater circulation cavity, the filtered water circulation cavity communicates with the transition flow channel, and the wastewater circulation cavity communicates with the fifth inlet and outlet.
  16. 根据权利要求15所述的净水***，其特征在于，还包括：The water purification system according to claim 15, further comprising:
    废水管，所述废水管连接所述复合滤芯组件的所述第五进出口；A waste water pipe connected to the fifth inlet and outlet of the composite filter element assembly;
    废水阀，所述废水阀串联连接在所述废水管上。A waste water valve connected in series to the waste water pipe.
  17. 根据权利要求16所述的净水***，其特征在于，还包括：The water purification system according to claim 16, further comprising:
    第一转换控制阀，所述第一转换控制阀串联连接在所述废水管上，所述第一转换控制阀位于所述废水阀与所述第五进出口之间；A first switching control valve, the first switching control valve is connected in series on the waste water pipe, and the first switching control valve is located between the waste water valve and the fifth inlet and outlet;
    第二转换管，所述第二转换管分别连接所述第一转换管和所述废水管，所述第二转换管与所述废水管的连接点位于所述废水阀和所述第一转换控制阀之间，所述第二转换管与所述第一转换管的连接点位于所述增压泵和所述第二进出口之间。A second conversion tube, which is respectively connected to the first conversion tube and the waste water tube, and the connection point of the second conversion tube and the waste water tube is located at the waste water valve and the first conversion tube Between control valves, the connection point of the second switching tube and the first switching tube is located between the booster pump and the second inlet and outlet.
  18. 根据权利要求17所述的净水***，其特征在于，还包括：第二转换控制阀，所述第二转换控制阀串联连接在所述第一转换管上，所述第二转换控制阀位于所述第二转换管与第一转换管的连接点与所述第二进出口之间。The water purification system according to claim 17, further comprising: a second switching control valve, the second switching control valve is connected in series to the first switching tube, and the second switching control valve is located at A connection point between the second conversion tube and the first conversion tube and the second inlet and outlet.
  19. 根据权利要求17所述的净水***，其特征在于，还包括：串联连接在所述纯水管上的高压开关，所述高压开关与所述增压泵电联接。The water purification system according to claim 17, further comprising: a high-pressure switch connected in series to the pure water pipe, the high-pressure switch being electrically connected to the booster pump.
  20. 根据权利要求17、18或19所述的净水***，其特征在于，所述增压泵与所述第一转换控制阀电连接，且所述增压泵与所述第一转换控制阀同开同关。The water purification system according to claim 17, 18 or 19, wherein the booster pump is electrically connected to the first switching control valve, and the booster pump is the same as the first switching control valve Open and close.
  21. 根据权利要求17～20中任一项所述的净水***，其特征在于，还包括：串联连接在所述纯水管上的第一单向阀。The water purification system according to any one of claims 17 to 20, further comprising: a first check valve connected in series to the pure water pipe.
  22. 根据权利要求17～21中任一项所述的净水***，其特征在于，还包括：串联连接在所述废水管上的第二单向阀，所述第二单向阀位于所述第二转换管在所述废水管上的连接点与所述废水阀之间。The water purification system according to any one of claims 17 to 21, further comprising: a second one-way valve connected in series to the waste water pipe, the second one-way valve located at the first The connection point between the second conversion tube on the waste water pipe and the waste water valve.
  23. 根据权利要求16～22中任一项所述的净水***，其特征在于，所述废水阀为可调废水阀，所述废水阀为累计制冲洗或待机冲洗。The water purification system according to any one of claims 16 to 22, wherein the waste water valve is an adjustable waste water valve, and the waste water valve is a cumulative flush or standby flush.
  24. 根据权利要求11～23中任一项所述的净水***，其特征在于，所述第一过滤件为无纺布、聚丙烯层、碳纤维卷制而成的卷筒，所述第二过滤件为碳筒。The water purification system according to any one of claims 11 to 23, characterized in that the first filter is a roll made of non-woven fabric, polypropylene layer, and carbon fiber, and the second filter The piece is a carbon tube.
  25. 根据权利要求11～24中任一项所述的净水***，其特征在于，所述第一过滤件外套在所述第二过滤件的外侧，所述第一过滤件和所述第二过滤件之间通过水路间隔筒 间隔开，所述第一过滤件的外周侧形成所述第一均布流道，所述第一过滤件与所述水路间隔筒之间限定出所述第二均布流道，所述第二过滤件与所述水路间隔筒之间限定出所述第三均布流道，所述第二过滤件环绕的内腔构成所述第四均布流道。The water purification system according to any one of claims 11 to 24, wherein the first filter element is coated on the outside of the second filter element, and the first filter element and the second filter element The pieces are spaced apart by a waterway spacer, the outer periphery of the first filter element forms the first uniform flow path, and the second filter element defines the second uniformity between the first filter element and the waterway spacer In the distribution channel, the third uniform distribution channel is defined between the second filter element and the waterway spacer, and the inner cavity surrounded by the second filter component constitutes the fourth uniform distribution channel.
  26. 根据权利要求15～25中任一项所述的净水***，其特征在于，所述第二过滤单元包括：反渗透膜元件，所述反渗透膜元件包括：中心管组和多个反渗透膜片袋，所述中心管组包括中心管和多个间隔开设置的废水管，多个所述废水管环绕所述中心管设置，所述中心管的管壁上设有过滤水入孔，所述废水管的管壁上设有废水入孔；The water purification system according to any one of claims 15 to 25, wherein the second filtration unit includes: a reverse osmosis membrane element, and the reverse osmosis membrane element includes: a central tube group and a plurality of reverse osmosis For a membrane bag, the central tube group includes a central tube and a plurality of spaced-apart waste water pipes, and a plurality of the waste water pipes are arranged around the center pipe, and a filtered water inlet hole is provided on the wall of the center pipe A waste water inlet hole is arranged on the wall of the waste water pipe;
    所述反渗透膜片袋具有位于所述中心管组内部的第一部分和位于所述中心管组外部的第二部分，每一所述废水管和所述中心管被至少一个所述反渗透膜片袋的第一部分隔开，多个所述反渗透膜片袋的所述第二部分形成围绕在所述中心管组的周围的多层薄膜组件；其中，The reverse osmosis membrane sheet bag has a first portion located inside the central tube group and a second portion located outside the central tube group, each of the waste water tube and the central tube is separated by at least one reverse osmosis membrane The first portion of the sheet bag is spaced apart, and the second portions of the plurality of reverse osmosis membrane sheet bags form a multilayer membrane assembly surrounding the central tube group; wherein,
    从所述第四进出口进入所述第二过滤单元的水经所述反渗透膜片袋过滤后流向所述过滤水入孔，所述中心管的管腔构成所述过滤水流通腔，所述废水管的管腔构成所述废水流通腔，所述反渗透膜片袋构成所述过滤膜。The water that enters the second filter unit from the fourth inlet and outlet passes through the reverse osmosis membrane bag and then flows to the filtered water inlet hole. The lumen of the center tube constitutes the filtered water circulation cavity. The lumen of the wastewater pipe constitutes the wastewater circulation cavity, and the reverse osmosis membrane bag constitutes the filter membrane.
PCT/CN2019/114555 2018-10-31 2019-10-31 Flow channel structure for composite filter cartridge assembly and water purification system WO2020088557A1 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
CN201811291164.9A CN111115878A (en) 2018-10-31 2018-10-31 Water purification system
CN201811289134.4 2018-10-31
CN201821786338.4U CN209307046U (en) 2018-10-31 2018-10-31 The flow passage structure of composite filter element component
CN201821786338.4 2018-10-31
CN201821786755.9 2018-10-31
CN201811291171.9 2018-10-31
CN201821790153.0 2018-10-31
CN201811289134.4A CN111115868A (en) 2018-10-31 2018-10-31 Flow passage structure of composite filter element assembly
CN201821790153.0U CN209367960U (en) 2018-10-31 2018-10-31 Water purification system
CN201811291171.9A CN111115879A (en) 2018-10-31 2018-10-31 Water purification system
CN201821786755.9U CN209481320U (en) 2018-10-31 2018-10-31 Water purification system
CN201811291164.9 2018-10-31

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