CN206562313U - Water cleaning systems - Google Patents

Water cleaning systems Download PDF

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Publication number
CN206562313U
CN206562313U CN201720219926.9U CN201720219926U CN206562313U CN 206562313 U CN206562313 U CN 206562313U CN 201720219926 U CN201720219926 U CN 201720219926U CN 206562313 U CN206562313 U CN 206562313U
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CN
China
Prior art keywords
water
filter core
mouthfeel
filter
pure water
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN201720219926.9U
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Chinese (zh)
Inventor
张兴致
何志锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
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.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201720219926.9U priority Critical patent/CN206562313U/en
Priority to PCT/CN2017/086003 priority patent/WO2018161440A1/en
Priority to EP17743234.1A priority patent/EP3392200B1/en
Priority to US15/545,731 priority patent/US20200039855A1/en
Priority to RU2017128475A priority patent/RU2664934C1/en
Priority to KR1020177023396A priority patent/KR101995359B1/en
Application granted granted Critical
Publication of CN206562313U publication Critical patent/CN206562313U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of water cleaning systems, including:Composite filter element component, booster pump, waste water magnetic valve and water-storing device.Composite filter element component includes filter housing and composite filter element, composite filter element includes ecto-entad and spaced preprocessing filter element and fine filtering filter core and the mouthfeel filter core positioned at fine filtering filter core downstream, the pretreated water outlet of filter housing, the water side of pretreated water import respectively with preprocessing filter element, the water inlet end connection of fine filtering filter core, the pure water mouthful of filter housing is connected with the water side of fine filtering filter core and connected with the water inlet end of mouthfeel filter core, the two ends of booster pump are exported with the pretreated water of filter housing respectively, pretreated water import is connected, waste water magnetic valve is connected with the concentration water out of filter housing, water-storing device is connected with the pure water mouthful of filter housing.According to water cleaning systems of the present utility model, simple in construction, size is small, and can meet the big throughput requirements of user by the water-storing device of setting, while the blocking risk of booster pump can be reduced.

Description

Water cleaning systems
Technical field
The utility model is related to water-treatment technology field, more particularly, to a kind of water cleaning systems.
Background technology
In correlation technique, integrated composite filter element is due to the advantages of small volume, joint lack, making its answering in water cleaning systems With with study it is more and more.And the post active carbon filter core for being used to improve mouthfeel in water cleaning systems is generally positioned at Integral filter element Outside, be unfavorable for the miniaturization of package size.
In addition, when there is hydraulic pressure deficiency, the water flux for easily causing whole water cleaning systems is reduced, so that water purification system The water yield of system is few, it is impossible to meet the big throughput requirements of user.Moreover, the booster pump set in water cleaning systems is in long-term use During easily there is blockage problem, have impact on use and the life-span of water cleaning systems.Accordingly, it would be desirable to improve.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried Go out a kind of water cleaning systems, the water cleaning systems are simple in construction, joint is few, size is small, reliability is high, service life length and can expire The big throughput requirements of sufficient user.
According to the water cleaning systems of the utility model embodiment, including:Composite filter element component, the composite filter element component includes There is filter housing and the composite filter element being located in the filter housing, the filter housing original water inlet, pretreated water outlet, pretreated water to enter Mouth, pure water mouth, pure water outlet and concentration water out, the composite filter element include filter assemblies and mouthfeel filter core, the filtering group Part is set gradually and spaced preprocessing filter element and fine filtering filter core including ecto-entad, the mouthfeel filter core and institute State fine filtering filter core to be connected and positioned at the downstream of the fine filtering filter core, the pretreated water outlet is filtered with the pretreatment The water side connection of core, the pretreated water import is connected with the water inlet end of the fine filtering filter core, the pure water mouthful and institute State the water side connection of fine filtering filter core and connected with the water inlet end of the mouthfeel filter core;Booster pump, the one of the booster pump End is connected and the other end is connected with the pretreated water import with pretreated water outlet, and the booster pump is for will be from described The water of pretreated water outlet outflow is delivered to the pretreated water import;Waste water magnetic valve, the waste water magnetic valve with it is described dense Water outlet is connected;Water-storing device, the water-storing device is connected with the pure water mouthful, and the water-storing device is used to store from described The pure water of pure water mouthful outflow.
According to the water cleaning systems of the utility model embodiment, by the way that mouthfeel filter core and being combined into one of filter assemblies are filtered Core, is further conducive to the miniaturization of package size, reduces joint quantity and leak risk, and fill by the retaining of setting Put, pure water can be stored in water-storing device, thus can still meet the big throughput requirements of user when hydraulic pressure is not enough, together When booster pump is located to the downstream of preprocessing filter element so that the water for entering booster pump is filtered by preprocessing filter element so that The blocking risk of booster pump can be reduced, increases the life-span of water cleaning systems, the reliability of water cleaning systems is improved.
According to some alternative embodiments of the present utility model, the water cleaning systems also include:First entering water electromagnetic valve, it is described First entering water electromagnetic valve is connected between the booster pump and the pretreated water import.Thus, by the way that entering water electromagnetic valve is set Put in the downstream of preprocessing filter element, it is possible to reduce the blocking risk of magnetic valve, further increase the life-span of water cleaning systems, go forward side by side Improve to one step the reliability of water cleaning systems.
According to some alternative embodiments of the present utility model, the original water inlet and the pretreated water import are positioned at described The upper end of filter housing, the pretreated water outlet, the pure water mouthful, pure water outlet and the concentration water out are located at the filter The lower end of shell.As a result, the outlet of original water inlet, pretreated water, pretreated water import, pure water mouthful, pure water outlet and condensed water Outlet being reasonably distributed on filter housing and the design for being conducive to water route in composite filter element component.
According to some alternative embodiments of the present utility model, the water-storing device includes:Retaining for storing pure water is held Device;Low tension switch, the low tension switch is connected between the water storage container and the pure water mouthful;Water pump, the water pump connection Between the water storage container and the pure water mouthful, the water pump is described pure for the pure water in the water storage container to be delivered to The mouth of a river.Thus, the pure water in water storage container is delivered to by pure water mouthful by water pump, increases the water yield of cleaning system, led to simultaneously The low tension switch set is crossed, the reliability of water cleaning systems can be improved.
Further, the water-storing device also includes:Second entering water electromagnetic valve, one end of second entering water electromagnetic valve with The pure water mouthful is connected and the other end is connected with the low tension switch.Thus, can be square by the second entering water electromagnetic valve of setting Just the break-make in water route is controlled.
According to some alternative embodiments of the present utility model, the filter assemblies are arranged along the vertical direction with the mouthfeel filter core Cloth.Thus, it is possible to realize the spatial arrangement of composite filter element in the vertical direction, reduce the diameter of composite filter element, be conducive to reducing The size of complete machine.
According to some alternative embodiments of the present utility model, the fine filtering filter core include center collector pipe and wound on Fine filtering film on the center collector pipe, the original water inlet is connected with the water inlet end of the preprocessing filter element, it is described in Heart collector pipe constitutes the water side of the fine filtering filter core;The composite filter element also includes:First end cap, first end cap In a ring, first end cap is located at one end of the filter assemblies and is connected with the preprocessing filter element;Second end cap, it is described Second end cap includes end cap body in a ring and axially extended and dividing plate cylindrical in shape from one end of the end cap body, institute State end cap body to be located at the other end of the filter assemblies and with the preprocessing filter element be connected, the dividing plate is located at the pre- place Manage between filter core and the fine filtering filter core so that the preprocessing filter element to be spaced apart with the fine filtering filter core, the mouth Sense filter core is located in the end cap body, and the mouthfeel filter core is connected with the center collector pipe and the mouthfeel filter core is provided with The pure water passage flowed out suitable for pure water, the pure water passage and the pure water outlet, the mouthfeel filter core and described second Ecto-entad is limited between end cap to set gradually and spaced concentration aquaporin and circulation passage, the circulation passage The water inlet end and the circulation passage for constituting the mouthfeel filter core connect the pure water mouthful and the center collector pipe, the concentration Water out is connected with concentration aquaporin.
Thus, the installation and assembling of composite filter element are facilitated by the first end cap and the second end cap of setting, and by mouthfeel Filter core is located in the second end cap, is conducive to the design in water route in composite filter element and make it that the waterway structure in composite filter element is simple, Water outlet quality can be ensured simultaneously.
According to the utility model further embodiment, the water cleaning systems also include:Shell is connected, the connection shell is located at It is connected in the end cap body and with the center collector pipe, is limited between the connection shell and second end cap described dense Shrink passage, the mouthfeel filter core is located in the connection shell, is limited between the inwall of the mouthfeel filter core and the connection shell Go out the circulation passage.Thus, by the connection shell of setting, the assembling of mouthfeel filter core is facilitated, and can be easily by mouth Sense filter core is separated with filter assemblies.
Alternatively, projection is provided with so that the inwall of the connection shell between the inwall and the mouthfeel filter core of the connection shell It is spaced apart with the mouthfeel filter core, it is logical that the gap between the inwall and the mouthfeel filter core of the connection shell constitutes the circulation Road.Thus, by the projection of setting, it is easy to the formation of circulation passage.
Alternatively, annular protrusion is formed with the connection shell, the water side of the center collector pipe coordinates in the ring In shape is raised.Thus, the connection of mouthfeel filter core and fine filtering filter core is facilitated, and connection is quick, reliable.
Alternatively, the water cleaning systems also include:First keeper and the second keeper, first keeper and described Second keeper is respectively provided at the axial two ends of the mouthfeel filter core and is connected with the mouthfeel filter core.Thus, setting is passed through First keeper and the second keeper, can facilitate and mouthfeel filter core is positioned in connection shell.
Further, in a tubular form, the endoporus of the mouthfeel filter core constitutes the pure water passage to the mouthfeel filter core, and described the Positioning piece includes the first locating bodies and forms the first spacing preiection on first locating bodies, first positioning Body covers one end of the neighbouring center collector pipe of the mouthfeel filter core, and first spacing preiection coordinates in the mouthfeel In the endoporus of filter core, second keeper includes the second locating bodies and the second limit formed on second locating bodies Position is raised, and second locating bodies are located at one end of the remote center collector pipe of the mouthfeel filter core, second limit Position male cooperation is formed with second described in insertion vertically in the endoporus of the mouthfeel filter core and on second spacing preiection The limbers of keeper.
Thus, by the way that mouthfeel filter core is set in a tubular form, the formation of the pure water passage on mouthfeel filter core is facilitated, and pass through The second spacing preiection on the first spacing preiection and the second keeper on first keeper respectively with the endoporus of mouthfeel filter core Coordinate so that installation, the positioning of mouthfeel filter core are more convenient, fast, and make it that the flow passage structure in composite filter element is simple.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein:
Fig. 1 is the schematic diagram of the water cleaning systems according to the utility model embodiment;
Fig. 2 is the schematic diagram of the composite filter element component according to the utility model embodiment;
Fig. 3 is the schematic diagram of the composite filter element according to the utility model embodiment;
Fig. 4 is the enlarged drawing at A in Fig. 3.
Reference:
Water cleaning systems 100,
Composite filter element component 1,
Filter housing 11, original water inlet 111, pure water outlet 112 concentrates water out 113, pretreated water outlet 114, pretreated water Import 115, pure water mouthful 116,
Composite filter element 12, preprocessing filter element 121, fine filtering filter core 122, center collector pipe 1221, fine filtering film 1222, mouthfeel filter core 123,
First end cap 124, the first turn-up portion 1241, the second turn-up portion 1242, the first accommodating chamber 1243,
Second end cap 125, end cap body 1251, the 3rd turn-up portion 12511, dividing plate 1252, the second accommodating chamber 1253,
Connection shell 126, projection 1261, annular protrusion 1262, through hole 1263, seal 1264,
First keeper 127, the first locating bodies 1271, the 5th turn-up portion 1272, the first spacing preiection 1273,
Second keeper 128, the second locating bodies 1281, the 6th turn-up portion 1282, the second spacing preiection 1283, limbers 1284,
First entering water electromagnetic valve 3, booster pump 4, check valve 5, high-voltage switch gear 6, waste water magnetic valve 7, tap 8,
Water storage container 91, water pump 92, low tension switch 93, the second entering water electromagnetic valve 94,
Aquaporin a1, circulation passage a2, pure water passage a3 are concentrated,
Inlet pipeline b1, pure water pipeline b2, concentrate water lines b3, pre-process pipeline b4, retaining pipeline b5.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", " vertical ", " level ", The orientation or position relationship of the instruction such as " top ", " bottom " " interior ", " outer ", " axial direction ", " radial direction ", " circumference " are based on shown in the drawings Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, defining " first ", one or more spy can be expressed or be implicitly included to the feature of " second " Levy.In description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.
The water cleaning systems 100 according to the utility model embodiment are described below with reference to Fig. 1-Fig. 4.
As Figure 1-Figure 4, according to the water cleaning systems 100 of the utility model embodiment, including:Composite filter element component 1, increasing Press pump 4, waste water magnetic valve 7 and water-storing device.
Composite filter element component 1 includes filter housing 11 and the composite filter element 12 being located in filter housing 11, and filter housing 11 has original water inlet 111st, pretreated water outlet 114, pretreated water import 115, pure water mouthful 116, pure water outlet 112 and concentration water out 113, are combined Filter core 12 includes filter assemblies and mouthfeel filter core 123, and filter assemblies are set gradually and spaced pre- including ecto-entad Filter core 121 and fine filtering filter core 122 are handled, mouthfeel filter core 123 is connected with fine filtering filter core 122 and positioned at fine filtering filter The downstream of core 122, pretreated water outlet 114 connect with the water side of preprocessing filter element 121, pretreated water import 115 and finely The water inlet end connection of filter core 122, pure water mouthfuls 116 connected with the water side of fine filtering filter core 122 and with mouthfeel filter core 123 Water inlet end connection.Thus, by by mouthfeel filter core 123 and filter assemblies being combined into one filter core, being further conducive to The miniaturization of package size, reduces joint quantity and leak risk.
Wherein, preprocessing filter element 121 can pre-process filter for PAC (PP And C, PP cottons and active carbon composite filter core 12) Core 121, such as preprocessing filter element 121 can include the PP nonwoven fabric rolls being sequentially distributed from outside to inside along the radial direction of composite filter element 12 Winding layer (precision of PP nonwoven fabric roll winding layer could be arranged to 5um) and NACF winding layer, preprocessing filter element 121 can have Heterochromatic, peculiar smell, chlorine residue and partial organic substances that effect is gone in removing rust, silt, absorption water, it is ensured that enter fine filtering filter core 122 Water quality, the life-span of extension fine filtering filter core 122.Mouthfeel filter core 123 can be active carbon layer, and for example mouthfeel filter core 123 can Think active carbon stick, mouthfeel filter core 123 can remove volatile organic matter, remaining chlorine residue, it is possible to retain necessary mineral matter Such as micro-calcium, silicic acid, carbonate, can make taste and sweet mouthfeel, soft.
One end of booster pump 4 is connected with pretreated water outlet 114 and the other end is connected with pretreated water import 115, supercharging Pump 4 is used to the water for exporting 114 outflows from pretreated water being delivered to pretreated water import 115.Thus, booster pump 4 is located at pre- Handle the downstream of filter core 121 so that the water for entering booster pump 4 is filtered by preprocessing filter element 121, so as to reduce increasing The blocking risk of press pump 4, increases the life-span of water cleaning systems 100, improves the reliability of water cleaning systems 100.Also, by that will locate in advance Manage filter core 121 and fine filtering filter core 122 is spaced apart, the water after the preprocessed processing of filter core 121 can be prevented not by supercharging Pump 4 is pressurized and is directly entered fine filtering filter core 122 and is filtered.
Waste water magnetic valve 7 is connected with concentration water out 113, and waste water magnetic valve 7 is used to adjust waste water ratio, to balance water purification The operating pressure of system 100.
Water-storing device is connected with pure water mouthful 116, and water-storing device is used to store the pure water from the outflow of pure water mouthful 116.Wastewater by Electric Magnet valve is connected with concentration water out 113.Thus, by the water-storing device of setting, pure water can be stored in water-storing device, by This can still meet the big throughput requirements of user when hydraulic pressure is not enough.
The course of work of water cleaning systems 100 is briefly explained referring to Fig. 1-Fig. 4.
Reference picture 1- Fig. 4, raw water enters in filter housing 11 from the original water inlet 111 on filter housing 11, and passes through filter assemblies Preprocessing filter element 121 is tentatively filtered.Preprocessed filter core 121 carries out the water after tentatively filtering through the pretreatment on filter housing 11 The outflow composite filter element of water out 114 component 1 is simultaneously pressurized by booster pump 4, thus, it is possible to which so that raw water enters booster pump 4 Tentatively filtered before, reduction booster pump 4 blocks risk.Water after supercharging passes through the pretreated water import 115 on filter housing 11 Flow into composite filter element component 1, and fine filtering is carried out by fine filtering filter core 122.After being filtered through fine filtering filter core 122 The pure water of formation is flowed out and flowed into water-storing device by the pure water mouthful 116 on filter housing 11, and water-storing device stores the pure water to treat Drink.And the condensed water produced discharges water cleaning systems 100 through the concentration water out 113 on filter housing 11.
When needing drinking-water, the pure water of storage can be returned in filter housing 11 and entered by pure water mouthful 116 in water-storing device The water inlet end of mouthfeel filter core 123, while the raw water entered from original water inlet 111 enters after can passing sequentially through filter assemblies filtering The water inlet end of mouthfeel filter core 123.Pure water into the water inlet end of mouthfeel filter core 123 is filtered by mouthfeel filter core 123 and improves mouth After sense, flowed out by the pure water outlet 112 on filter housing 11 to drink.Thus, it is possible to increase the water outlet of water flux and unit interval Amount, the big throughput requirements of user can be still met when hydraulic pressure is not enough.Also, by the way that water-storing device is arranged on into mouthfeel filter core 123 upstream, can remove pure water resting period in water-storing device long produced peculiar smell, it is ensured that water cleaning systems 100 are most Whole water outlet quality.
According to the water cleaning systems 100 of the utility model embodiment, by the way that mouthfeel filter core 123 and filter assemblies are combined into one Body filter core, is further conducive to the miniaturization of package size, reduces joint quantity and leak risk, and pass through setting Pure water, can be stored in water-storing device by water-storing device, thus can still meet the big flux of user when hydraulic pressure is not enough Demand, while booster pump 4 to be located to the downstream of preprocessing filter element 121 so that the water for entering booster pump 4 passes through preprocessing filter element 121 are filtered, and so as to reduce the blocking risk of booster pump 4, are increased the life-span of water cleaning systems 100, are improved water cleaning systems 100 reliability.
According to some alternative embodiments of the present utility model, reference picture 1, water cleaning systems 100 also include:First water inlet electromagnetism Valve 3, the first entering water electromagnetic valve 3 is connected between booster pump 4 and pretreated water import 115.Thus, by the way that entering water electromagnetic valve is set Put in the downstream of preprocessing filter element 121, it is possible to reduce the blocking risk of magnetic valve, further increase the longevity of water cleaning systems 100 Life, and further improve the reliability of water cleaning systems 100.
According to some alternative embodiments of the present utility model, reference picture 2, original water inlet 111 and pretreated water import 115 In the upper end of filter housing 11, pretreated water outlet 114, pure water mouthful 116, pure water outlet 112 and concentration water out 113 are located at filter housing 11 Lower end.As a result, original water inlet 111, pretreated water outlet 114, pretreated water import 115, pure water mouthfuls 116, pure water go out Mouth 112 and concentration being reasonably distributed on filter housing 11 of water out 113 and the design for being conducive to water route in composite filter element component 1.
According to some alternative embodiments of the present utility model, reference picture 1, water-storing device includes:Storage for storing pure water Water receptacle 91, low tension switch 93 and water pump 92.Low tension switch 93 is connected between water storage container 91 and pure water mouthful 116, and low pressure is opened 93 are closed by the hydraulic pressure in signal piping to judge whether the pure water in water storage container 91 is full.Pure water in water storage container 91 When completely, the hydraulic pressure in pipeline is larger, and now low tension switch 93 disconnects, and prevents in water storage container 91 that pressure is excessive and produces leakage The problems such as water, damage, improve the reliability of water cleaning systems 100;When water level in water storage container 91 is relatively low, the hydraulic pressure in pipeline Relatively low, low tension switch 93 is closed.Water pump 92 is connected between water storage container 91 and pure water mouthful 116, and water pump 92 is used to hold retaining Pure water in device 91 is delivered to pure water mouthful 116.Thus, the pure water in water storage container 91 is delivered to by pure water mouthful by water pump 92 116, increase the water yield of cleaning system, while by the low tension switch 93 of setting, the reliable of water cleaning systems 100 can be improved Property.Alternatively, water storage container 91 can be the water outlet equipments such as water bag or pressurized tank.
Further, reference picture 1, water-storing device also includes:Second entering water electromagnetic valve 94, the one of the second entering water electromagnetic valve 94 End is connected with pure water mouthful 116 and the other end is connected with low tension switch 93.Thus, by the second entering water electromagnetic valve 94 of setting with it is low Compress switch and 93 use cooperatively, both can easily control the break-make in water route, while the reliable of water cleaning systems 100 can be improved Property.
According to some alternative embodiments of the present utility model, reference picture 3, filter assemblies are vertically square with mouthfeel filter core 123 To arrangement.Thus, it is possible to realize the spatial arrangement of composite filter element 12 in the vertical direction, reduce the diameter of composite filter element 12, have Beneficial to the size for reducing complete machine.For example, mouthfeel filter core 123 can be located at the top of filter assemblies so that whole composite filter element 12 It is rational in infrastructure, stably, while facilitating the flow path designs inside composite filter element 12.
According to some alternative embodiments of the present utility model, reference picture 3 and Fig. 4, fine filtering filter core 122 include center collection Water pipe 1221 and the fine filtering film 1222 on center collector pipe 1221, original water inlet 111 and preprocessing filter element 121 Water inlet end is connected, and center collector pipe 1221 constitutes the water side of fine filtering filter core 122.Wherein, the essence of fine filtering filter core 122 Thin filter membrane 1222 can be reverse osmosis membrane or NF membrane, and fine filtering filter core 122 can intercept bacterial virus, heavy metal etc., Fine filtering filter core 122 can roll technology using multimembrane page and be made, it is possible thereby to improve the performance of fine filtering filter core 122.
Composite filter element 12 also includes:First end cap 124 and the second end cap 125, the first end cap 124 in a ring, the first end cap 124 are located at one end (lower end that filter assemblies are located at for example, referring to the first end cap 124 in Fig. 3) of filter assemblies and locate with pre- Filter core 121 is managed to be connected.For example, in the example of fig. 3, the week edge of the first end cap 124 is formed with the first turn-up portion upwardly extended 1241 and second turning over of setting is spaced apart in the radial direction positioned at the inner side of the first turn-up portion 1241 and in the first end cap 124 Edge 1242, forms the first accommodating chamber 1243 of annular, pretreatment filter between the first turn-up portion 1241 and the second turn-up portion 1242 The lower end of core 121 be contained in above-mentioned first accommodating chamber 1243 and with the madial wall and the second turn-up portion of the first turn-up portion 1241 1242 lateral wall is fitted close.
Second end cap 125 includes end cap body 1251 in a ring and one end (middle-end of reference picture 3 from end cap body 1251 The lower end of lid body 1251) vertically (above-below direction in reference picture 3) extension and dividing plate 1252 cylindrical in shape, end cap body 1251 be located at the other end (upper end that filter assemblies are located at for example, referring to the end cap body 1251 in Fig. 3) of filter assemblies and with Preprocessing filter element 121 is connected.Dividing plate 1252 is located between preprocessing filter element 121 and fine filtering filter core 122 to filter pretreatment Core 121 is spaced apart with fine filtering filter core 122, it is possible thereby to easily by preprocessing filter element 121 and fine filtering filter core 122 every Open, prevent the water after the preprocessed processing of filter core 121 not to be pressurized by booster pump 4 and be directly entered fine filtering filter core 122 and enter Row filtering.The periphery edge of the lower end of end cap body 1251 is also formed with the 3rd turn-up portion 12511 extended downwardly, the 3rd turn-up portion The second accommodating chamber 1253 of annular is formed between 12511 and aforementioned barriers 1252, the upper end of preprocessing filter element 121 is contained in above-mentioned Interior and the madial wall with the 3rd turn-up portion 12511 and dividing plate 1252 the lateral wall of second accommodating chamber 1253 is fitted close, so as to So as to the second end cap 125 and the stabilization of preprocessing filter element 121, reliably be connected.
Mouthfeel filter core 123 is located in end cap body 1251, and mouthfeel filter core 123 is connected with center collector pipe 1221 and mouthfeel is filtered Core 123, which is provided with, to be suitable to pure water passage a3, pure water passage a3 and the pure water outlet 112 that pure water flows out and connects, mouthfeel filter core 123 and Ecto-entad is limited between second end cap 125 to set gradually and spaced concentration aquaporin a1 and circulation passage a2, Circulation passage a2 constitutes the water inlet end of mouthfeel filter core 123 and circulation passage a2 connection pure water Kou116He centers collector pipe 1221, dense Water outlet 113 is connected with concentration aquaporin a1.
Thus, by the first end cap 124 and the second end cap 125 of setting, the installation and assembling of composite filter element 12 are facilitated, And mouthfeel filter core 123 is located in the second end cap 125, be conducive to the design in water route and so that composite filter element 12 in composite filter element 12 Interior waterway structure is simple, while can ensure water outlet quality.
The filter process of above-mentioned composite filter element 12 is briefly explained referring to Fig. 1-Fig. 4.
Reference picture 3 (direction of arrow in figure is water (flow) direction) simultaneously combines Fig. 1, Fig. 2 and Fig. 4, and raw water first passes through pretreatment Filter core 121 is tentatively filtered, and the water that preprocessed filter core 121 carries out after tentatively filtering is exported through the pretreated water on filter housing 11 114 outflow composite filter element components 1 are simultaneously pressurized by booster pump 4.Water after supercharging is entered by the pretreated water on filter housing 11 Mouth 115 is flowed into composite filter element components 1, and passes through the progress fine filtering of fine filtering filter core 122.Through fine filtering filter core 122 The moisture of filtering is into two parts:A portion is pure water, and pure water is entered by the center collector pipe 1221 of fine filtering filter core 122 Row is collected, and the pure water in center collector pipe 1221 flows into above-mentioned circulation passage a2, and is flowed into by the pure water mouthful 116 on filter housing 11 Stored in water-storing device;Another part is condensed water, and the condensed water on the concentrated aquaporin a1 of condensed water and filter housing 11 goes out The outflow of mouth 113 simultaneously passes through the discharge water cleaning systems 100 of waste water magnetic valve 7.
When needing drinking-water, the pure water of storage can be returned in filter housing 11 and entered by pure water mouthful 116 in water-storing device In above-mentioned circulation passage a2, while the raw water entered from original water inlet 111 can pass sequentially through the preprocessing filter element of filter assemblies 121 and fine filtering filter core 122 filtered, wherein pure water is flowed into above-mentioned circulation passage a2 through center collector pipe 1221.Enter Enter pure water in circulation passage a2 and filter and improve the pure water flowed on mouthfeel filter core 123 after mouthfeel by mouthfeel filter core 123 to lead to Road a3, is then flowed out to drink by the pure water outlet 112 on filter housing 11.
According to the utility model further embodiment, reference picture 3 and Fig. 4, water cleaning systems 100 also include:Connect shell 126, connection shell 126 is located at the Nei Qieyu centers collector pipe 1221 of end cap body 1251 and is connected, and connects the end cap 125 of shell 126 and second Between limit concentration aquaporin a1, mouthfeel filter core 123 be located at connection shell 126 in, mouthfeel filter core 123 is with being connected the interior of shell 126 Circulation passage a2 is limited between wall.Thus, by the connection shell 126 of setting, the assembling of mouthfeel filter core 123 is facilitated, and Easily mouthfeel filter core 123 and filter assemblies can be separated.
Alternatively, reference picture 4, are provided with projection 1261 so that connection shell between the inwall and mouthfeel filter core 123 that connect shell 126 126 inwall is spaced apart with mouthfeel filter core 123, is connected the gap between the inwall and mouthfeel filter core 123 of shell 126 and is constituted to circulate and leads to Road a2.Thus, pass through the projection 1261 of setting so that inwall and the mouthfeel filter core 123 of connection shell 126 be spaced apart in Above-mentioned circulation passage a2 is formed between mouthfeel filter core 123 and the inwall for connecting shell 126, so that from fine filtering filter core Water in 122 center collector pipe 1221 out smoothly flows into mouthfeel filter core 123 and filtered.Alternatively, above-mentioned projection 1261 It can be formed on the inwall of connection shell 126, projection 1261 can be one and be formed as annular, and projection 1261 can also be shaft-like And can be multiple including what is be spaced apart.
Alternatively, on reference picture 3 and Fig. 4, connection shell 126 it is formed with annular protrusion 1262, center collector pipe 1221 goes out Water end (W.E.) (upper end of reference picture 3 and Fig. 4 center collector pipe 1221) coordinates in annular protrusion 1262.Thus, center collection is passed through Water pipe 1221 coordinates in the annular protrusion 1262 of connection shell 126, facilitates mouthfeel filter core 123 and fine filtering filter core 122 Connection, and connection is quick, reliable, and the pure water in center collector pipe 1221 is smoothly flowed into connection shell 126.
Further, reference picture 4, between the internal perisporium of above-mentioned annular protrusion 1262 and the periphery wall of center collector pipe 1221 Seal 1264 (such as sealing ring) can be set, it is possible thereby to ensure to connect between connection Ke126Yu centers collector pipe 1221 Sealing, prevent from concentrating the condensed water in aquaporin a1 and enter in connection shell 126.
Alternatively, reference picture 3 and Fig. 4, water cleaning systems 100 also include:First keeper 127 and the second keeper 128, the The keeper 128 of positioning piece 127 and second is respectively provided at the axial two ends of mouthfeel filter core 123 and is connected with mouthfeel filter core 123.By This, can be to mouthfeel filter core 123 in axial direction (in reference picture 3 by the first keeper 127 and the second keeper 128 of setting Above-below direction) on carry out it is spacing, so as to easily by mouthfeel filter core 123 be positioned at connection shell 126 in so that composite filter element 12 Stability Analysis of Structures is reliable.
Further, reference picture 3 and Fig. 4, in a tubular form, the axial two ends of mouthfeel filter core 123 can be opened mouthfeel filter core 123 Open, so that mouthfeel filter core 123 is simple in construction, easily processed into type, the endoporus of mouthfeel filter core 123 constitutes pure water passage A3, without setting pure water passage a3 on mouthfeel filter core 123 in addition.First keeper 127 includes the first locating bodies 1271 the first spacing preiection 1273 with formation on the first locating bodies 1271, the first locating bodies 1271 capping mouthfeel filter core One end (lower end of mouthfeel filter core 123 in reference picture 3) of 123 neighbouring center collector pipe 1221, so that in mouthfeel filter core 123 Pure water passage a3 is separated with center collector pipe 1221, prevents that the water in center collector pipe 1221 is straight without mouthfeel filter core 123 Tap into pure water passage a3, the first spacing preiection 1273 coordinates in the endoporus of mouthfeel filter core 123.
It is second spacing that second keeper 128 includes the second locating bodies 1281 and formed on the second locating bodies 1281 Projection 1283, the second locating bodies 1281 are located at one end of the remote center collector pipe 1221 of mouthfeel filter core 123 (in reference picture 3 The upper end of mouthfeel filter core 123), the second spacing preiection 1283 coordinates in the endoporus of mouthfeel filter core 123 and the second spacing preiection The limbers 1284 of the second keeper of insertion vertically 128 is formed with 1283, thus the pure water in pure water passage a3 can lead to Flow out to drink in the limbers 1284 crossed on the second keeper 128.
Thus, by the way that mouthfeel filter core 123 is set in a tubular form, the formation of the pure water passage a3 on mouthfeel filter core 123 is facilitated, And pass through the second spacing preiection 1283 on the first spacing preiection 1273 and the second keeper 128 on the first keeper 127 Respectively with the cooperation of the endoporus of mouthfeel filter core 123 so that installation, the positioning of mouthfeel filter core 123 are more convenient, fast, and cause Flow passage structure in composite filter element 12 is simple.
The water cleaning systems 100 according to one specific embodiment of the utility model are described referring to Fig. 1-Fig. 4.
Reference picture 1- Fig. 4, in the present embodiment, water cleaning systems 100 include above-mentioned composite filter element component 1, booster pump 4, Waste water magnetic valve 7 and water-storing device.Further, water cleaning systems 100 also include inlet pipeline b1, pure water pipeline b2, condensed water Pipeline b3, pretreatment pipeline b4, retaining pipeline b5, the first entering water electromagnetic valve 3, check valve 5, high-voltage switch gear 6 and tap 8.Store Water installations include above-mentioned water storage container 91, low tension switch 93, the entering water electromagnetic valve 94 of water pump 92 and second.
Wherein, composite filter element component 1 includes above-mentioned filter housing 11 and composite filter element 12, and composite filter element 12 includes above-mentioned mistake Filter component, the first end cap 124, the second end cap 125, mouthfeel filter core 123, connection shell 126, the first keeper 127 and the second positioning Part 128.Further, filter assemblies include above-mentioned preprocessing filter element 121 and fine filtering filter core 122, and the first end cap 124 is located at The bottom of filter assemblies and it is connected with preprocessing filter element 121 and fine filtering filter core 122, the second end cap 125 is located at filtering group The top of part and it is connected with preprocessing filter element 121.Connection shell 126 is located in the second end cap 125, connects the open upper end of shell 126 And its lower end has the through hole 1263 for connecting its inner chamber, the week edge of the through hole 1263 is formed with the annular protrusion extended downwardly 1262, the upper end of center collector pipe 1221 coordinates in annular protrusion 1262.
Mouthfeel filter core 123 is located in connection shell 126, and the first keeper 127 and the second keeper 128 are respectively provided at mouthfeel filter The lower end and upper end of core 123.Above-mentioned projection 1261 is formed with the bottom wall for connecting shell 126, the first keeper 127 is located at connection shell 126 interior and the first keeper 127 the first locating bodies 1271 are supported on above-mentioned projection 1261 so that the first locating bodies 1271 are spaced apart with connecting the bottom wall of shell 126, so that the pure water in center collector pipe 1221 can smoothly flow into connection shell In 126 circulation passage a2.
First locating bodies 1271 are rounded, and the week edge of the first locating bodies 1271 is formed with the 5th flange upwardly extended The internal perisporium of portion 1272, the lower end of mouthfeel filter core 123 and the 5th turn-up portion 1272 stops to so as to further increase by first The stability that keeper 127 coordinates with mouthfeel filter core 123, the turn-up portion 1272 of the 5th turn-up portion 1272 the 5th is with being connected shell 126 Internal perisporium is spaced apart, now the gap between the first keeper 127 and the inwall for connecting shell 126 and the periphery of mouthfeel filter core 123 Gap between wall and the inwall for connecting shell 126 collectively forms above-mentioned circulation passage a2.Second locating bodies 1281 are rounded, the The week of two locating bodies 1281, the upper end of mouthfeel filter core 123 was turned over the 6th along the 6th turn-up portion 1282 extended downwardly is formed with The internal perisporium of edge 1282 stops to so as to further increase the stabilization that the second keeper 128 coordinates with mouthfeel filter core 123 Property.
Inlet pipeline b1 is connected with the original water inlet 111 of filter housing 11, pretreatment pipeline b4 one end and pretreatment outlet phase Connect and the other end is connected with pretreatment import, the entering water electromagnetic valve 3 of booster pump 4 and first is serially connected in pretreatment pipeline in water (flow) direction On b4.Retaining pipeline b5 two ends are connected with pure water mouthful 116, the second entering water electromagnetic valve 94, low tension switch 93, water storage container 91 And water pump 92 is sequentially connected in series on retaining pipeline b5.Pure water pipeline b2 is connected with the pure water outlet 112 on filter housing 11, in current side Upward check valve 5, high-voltage switch gear 6 and tap 8 are sequentially connected in series on pure water pipeline b2, check valve 5 from pure water outlet 112 to One-way conduction on the direction of tap 8, check valve 5 is used to prevent in aqueous reflux to the composite filter element 12 in pure water pipeline b2, high Compress switch 6 can according in pure water pipeline b2 hydraulic pressure detection tap 8 be in open mode or closed mode.
Thus, when tap 8 is opened, water cleaning systems 100 open work, and the first entering water electromagnetic valve 3 and second enters water power Magnet valve 94 is opened, and high-voltage switch gear 6 and low tension switch 93 are closed, and raw water enters in inlet pipeline b1 and from the original on filter housing 11 Water inlet 111 is flowed into composite filter element component 1, and the raw water flowed into composite filter element component 1 first passes through preprocessing filter element 121 and carried out Preliminary filtering, it is compound through the outflow of pretreated water outlet 114 on filter housing 11 that preprocessed filter core 121 carries out the water after tentatively filtering Element kit 1 is simultaneously flowed into the b4 of pretreated tube road, is flowed into after the water in pretreatment pipeline b4 is pressurized by booster pump 4 and is passed through Pretreated water import 115 on filter housing 11 is flowed into composite filter element component 1, and carries out finely mistake by fine filtering filter core 122 Filter.
The center collector pipe 1221 that the pure water formed after being filtered through fine filtering filter core 122 passes through fine filtering filter core 122 It is collected, the pure water in center collector pipe 1221 is flowed out and flowed into by the pure water mouthful 116 on circulation passage a2 and filter housing 11 In retaining pipeline b5.The pure water flowed into retaining pipeline b5 flows through flowed into after the second entering water electromagnetic valve 94, low tension switch 93 successively Stored in water storage container 91.And produce the concentrated aquaporin a1 of condensed water and filter housing 11 on concentration water out 113 flow into it is dense Shrink pipeline b3, most discharges water cleaning systems 100 after Wastewater by Electric magnet valve 7 afterwards.
When needing drinking-water, water pump 92 is opened, from filter housing 11 after the pure water of storage pressurizes through water pump 92 in water storage container 91 On pure water mouthfuls 116 flow into above-mentioned circulation passage a2, then filtered by mouthfeel filter core 123 and improve mouthfeel, finally Flow into pure water pipeline b2, drunk finally by the outflow of tap 8 through the pure water outlet 112 on filter housing 11.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can in an appropriate manner be combined in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle of the present utility model and objective, replaced And modification, scope of the present utility model limits by claim and its equivalent.

Claims (12)

1. a kind of water cleaning systems, it is characterised in that including:
Composite filter element component, the composite filter element component includes filter housing and the composite filter element being located in the filter housing, the filter housing With original water inlet, pretreated water outlet, pretreated water import, pure water mouthful, pure water outlet and concentration water out, the composite filter Core includes filter assemblies and mouthfeel filter core, and the filter assemblies are set gradually and spaced pretreatment including ecto-entad Filter core and fine filtering filter core, the mouthfeel filter core are connected with the fine filtering filter core and positioned at the fine filtering filter core Downstream, the pretreated water outlet connect with the water side of the preprocessing filter element, the pretreated water import and it is described finely The water inlet end connection of filter core, pure water mouth connected with the water side of the fine filtering filter core and with the mouthfeel filter core Water inlet end connection;
Booster pump, one end of the booster pump is connected and the other end and the pretreated water import phase with pretreated water outlet Even, the booster pump is used to the water for exporting outflow from the pretreated water being delivered to the pretreated water import;
Waste water magnetic valve, the waste water magnetic valve is connected with the concentration water out;
Water-storing device, the water-storing device is connected with the pure water mouthful, and the water-storing device is used to store to flow from the pure water mouthful The pure water gone out.
2. water cleaning systems according to claim 1, it is characterised in that also include:First entering water electromagnetic valve, described first enters Water solenoid valve is connected between the booster pump and the pretreated water import.
3. water cleaning systems according to claim 1, it is characterised in that the original water inlet and pretreated water import position In the upper end of the filter housing, the pretreated water outlet, the pure water mouthful, pure water outlet and the concentration water out are located at The lower end of the filter housing.
4. water cleaning systems according to claim 1, it is characterised in that the water-storing device includes:
Water storage container for storing pure water;
Low tension switch, the low tension switch is connected between the water storage container and the pure water mouthful;
Water pump, the water pump is connected between the water storage container and the pure water mouthful, and the water pump is used to hold the retaining Pure water in device is delivered to the pure water mouthful.
5. water cleaning systems according to claim 4, it is characterised in that the water-storing device also includes:Second water inlet electromagnetism Valve, one end of second entering water electromagnetic valve is connected with pure water mouth and the other end is connected with the low tension switch.
6. the water cleaning systems according to any one of claim 1-5, it is characterised in that the filter assemblies and the mouthfeel Filter core is arranged along the vertical direction.
7. the water cleaning systems according to any one of claim 1-5, it is characterised in that during the fine filtering filter core includes Heart collector pipe and the fine filtering film on the center collector pipe, the original water inlet enter with the preprocessing filter element Water end (W.E.) is connected, and the center collector pipe constitutes the water side of the fine filtering filter core;
The composite filter element also includes:
First end cap, first end cap in a ring, first end cap be located at one end of the filter assemblies and with it is described pre- Filter core is handled to be connected;
Second end cap, second end cap includes end cap body in a ring and axially extended from one end of the end cap body And dividing plate cylindrical in shape, the end cap body is located at the other end of the filter assemblies and is connected with the preprocessing filter element, institute Dividing plate is stated to be located between the preprocessing filter element and the fine filtering filter core with by the preprocessing filter element and the fine mistake Filter core is filtered to be spaced apart,
The mouthfeel filter core is located in the end cap body, and the mouthfeel filter core is connected and the mouthfeel with the center collector pipe Filter core, which is provided with, is suitable to the pure water passage that pure water flows out, the pure water passage and the pure water outlet, the mouthfeel filter core Ecto-entad is limited between second end cap to set gradually and spaced concentration aquaporin and circulation passage, institute State the water inlet end of the circulation passage composition mouthfeel filter core and the circulation passage connects the pure water mouthful and the center is catchmented Pipe, the concentration water out is connected with concentration aquaporin.
8. water cleaning systems according to claim 7, it is characterised in that also include:Shell is connected, the connection shell is located at described It is connected in end cap body and with the center collector pipe, the condensed water is limited between the connection shell and second end cap Passage, the mouthfeel filter core is located in the connection shell, and institute is limited between the inwall of the mouthfeel filter core and the connection shell State circulation passage.
9. water cleaning systems according to claim 8, it is characterised in that the inwall of the connection shell and the mouthfeel filter core it Between be provided with projection so that the inwall of the connection shell is spaced apart with the mouthfeel filter core, the inwall and the mouthfeel for connecting shell Gap between filter core constitutes the circulation passage.
10. water cleaning systems according to claim 8, it is characterised in that be formed with annular protrusion on the connection shell, described The water side of center collector pipe coordinates in the annular protrusion.
11. water cleaning systems according to claim 8, it is characterised in that also include:First keeper and the second keeper, First keeper and second keeper be respectively provided at the axial two ends of the mouthfeel filter core and with the mouthfeel filter core It is connected.
12. water cleaning systems according to claim 11, it is characterised in that the mouthfeel filter core in a tubular form, filter by the mouthfeel The endoporus of core constitutes the pure water passage, and first keeper includes the first locating bodies and formed to position this described first The first spacing preiection on body, first locating bodies cover the one of the neighbouring center collector pipe of the mouthfeel filter core End, first spacing preiection coordinates in the endoporus of the mouthfeel filter core, and second keeper includes the second locating bodies With second spacing preiection of the formation on second locating bodies, second locating bodies are located at the remote of the mouthfeel filter core From one end of the center collector pipe, second spacing preiection coordinates in the endoporus of the mouthfeel filter core and second limit The limbers of the second keeper described in insertion vertically is formed with the projection of position.
CN201720219926.9U 2017-03-07 2017-03-07 Water cleaning systems Expired - Fee Related CN206562313U (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201720219926.9U CN206562313U (en) 2017-03-07 2017-03-07 Water cleaning systems
PCT/CN2017/086003 WO2018161440A1 (en) 2017-03-07 2017-05-25 Water purification system
EP17743234.1A EP3392200B1 (en) 2017-03-07 2017-05-25 Water purification system
US15/545,731 US20200039855A1 (en) 2017-03-07 2017-05-25 Water purification system
RU2017128475A RU2664934C1 (en) 2017-03-07 2017-05-25 Water treatment system
KR1020177023396A KR101995359B1 (en) 2017-03-07 2017-05-25 Water purification system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720219926.9U CN206562313U (en) 2017-03-07 2017-03-07 Water cleaning systems

Publications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018161441A1 (en) * 2017-03-07 2018-09-13 佛山市顺德区美的饮水机制造有限公司 Water purification system
CN108569785A (en) * 2017-03-07 2018-09-25 佛山市顺德区美的饮水机制造有限公司 Water cleaning systems
US10370268B2 (en) 2017-03-07 2019-08-06 Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. Water purification system
CN110304750A (en) * 2019-08-02 2019-10-08 珠海格力电器股份有限公司 Composite filter element assembly and water purification system
EP3549653A4 (en) * 2017-10-30 2020-01-22 Foshan Shunde Midea Water Dispenser MFG. Co., Ltd Composite filter element assembly and water purification system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018161441A1 (en) * 2017-03-07 2018-09-13 佛山市顺德区美的饮水机制造有限公司 Water purification system
CN108569785A (en) * 2017-03-07 2018-09-25 佛山市顺德区美的饮水机制造有限公司 Water cleaning systems
US10370268B2 (en) 2017-03-07 2019-08-06 Foshan Shunde Midea Water Dispenser Mfg. Co., Ltd. Water purification system
CN108569785B (en) * 2017-03-07 2023-09-19 佛山市顺德区美的饮水机制造有限公司 water purification system
EP3549653A4 (en) * 2017-10-30 2020-01-22 Foshan Shunde Midea Water Dispenser MFG. Co., Ltd Composite filter element assembly and water purification system
CN110304750A (en) * 2019-08-02 2019-10-08 珠海格力电器股份有限公司 Composite filter element assembly and water purification system

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