CN108569787B - Composite filter element, composite filter element assembly and water purification system - Google Patents
Composite filter element, composite filter element assembly and water purification system Download PDFInfo
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- CN108569787B CN108569787B CN201710132572.9A CN201710132572A CN108569787B CN 108569787 B CN108569787 B CN 108569787B CN 201710132572 A CN201710132572 A CN 201710132572A CN 108569787 B CN108569787 B CN 108569787B
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- filter element
- filter
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- water
- collecting pipe
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/06—Tubular membrane modules
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a composite filter element, a composite filter element component and a water purification system, wherein the composite filter element comprises: the filter comprises a filter component, a first end cover, a second end cover and a taste filter element. The filter component comprises a pretreatment filter core and a fine filter core which are sequentially arranged from outside to inside, the fine filter core comprises a central water collecting pipe and a fine filter membrane wound on the central water collecting pipe, a first end cover is arranged at one axial end of the filter component and is connected with the filter component, a second end cover is arranged at the other axial end of the filter component and is connected with the pretreatment filter core, a taste filter core is arranged in the second end cover, the taste filter core is connected with the central water collecting pipe and is positioned at the downstream of the fine filter core, a concentrated water channel and a circulating channel which are mutually spaced are defined between the taste filter core and the second end cover, the circulating channel is communicated with the central water collecting pipe, and a pure water channel for pure water to flow out is arranged on the taste filter core. The composite filter element has the advantages of simple and compact structure, small diameter, good pressure resistance and good quality of effluent.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a composite filter element, a composite filter element assembly and a water purification system.
Background
In the related art, the conventional composite filter element comprises a carbon rod, an ultrafiltration filter element, a PP (polypropylene) and active carbon composite filter element, a granular active carbon and ultrafiltration filter element, and the like, but the composite filter element related to a nanofiltration membrane or a reverse osmosis membrane is few due to the reasons of sealing pressure resistance and performance. Only a few composite filter elements related to reverse osmosis membranes, wherein the rear activated carbon filter element for improving the taste is still placed outside the integrated filter element, which is not beneficial to the miniaturization of the whole machine.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the composite filter element which has the advantages of simple and compact structure, small diameter and good pressure resistance.
The invention also provides a composite filter element assembly with the composite filter element.
The invention also provides a water purification system with the composite filter element assembly.
An embodiment of a composite filter cartridge according to the first aspect of the invention comprises: the filter assembly comprises a pretreatment filter element and a fine filter element which are sequentially arranged from outside to inside, and the fine filter element comprises a central water collecting pipe and a fine filter membrane wound on the central water collecting pipe; the first end cover is arranged at one axial end of the filter assembly and is connected with the filter assembly to cover one axial end of the filter assembly; the second end cover is cylindrical, is arranged at the other axial end of the filter assembly and is connected with the pretreatment filter element; the taste filter core, taste filter core is established in the second end cover, taste filter core with the center water collecting pipe links to each other and is located the low reaches of fine filtration filter core, taste filter core with inject concentrated water passageway and the circulation passageway that sets gradually and separate each other from outside to inside between the second end cover, the circulation passageway with center water collecting pipe intercommunication, be equipped with the pure water passageway that supplies the pure water to flow on the taste filter core.
According to the composite filter element provided by the embodiment of the invention, the pretreatment filter element and the fine filter element are sequentially arranged from outside to inside, and the taste filter element positioned at the downstream of the fine filter element is arranged at the axial end of the fine filter element, so that the composite filter element is integrally arranged in a three-dimensional arrangement, the diameter of the composite filter element can be reduced, the pressure resistance of a filter shell for placing the composite filter element is favorable, the structure is simple, the volume is small, the miniaturization of the whole machine is favorable, and the quality of water outlet is good.
According to some alternative embodiments of the invention, the filter assembly and the mouthfeel cartridge are arranged in an up-down direction. Therefore, the three-dimensional arrangement of the composite filter element in the up-down direction can be realized, the diameter of the composite filter element is reduced, and the size of the whole machine is reduced.
Further, the mouthfeel cartridge is positioned above the filter assembly. Therefore, the whole composite filter element has reasonable and stable structure.
According to some optional embodiments of the invention, the composite filter element further comprises: the connecting shell is arranged in the second end cover and is connected with the central water collecting pipe, the concentrated water channel is defined between the connecting shell and the second end cover, the taste filter element is arranged in the connecting shell, and the circulation channel is defined between the taste filter element and the inner wall of the connecting shell. Therefore, the assembly of the taste filter element is facilitated through the arranged connecting shell, and the taste filter element can be conveniently separated from the filter assembly.
Further, a bump is arranged between the inner wall of the connecting shell and the taste filter element so that the inner wall of the connecting shell is spaced apart from the taste filter element, and a gap between the inner wall of the connecting shell and the taste filter element forms the circulation channel. Therefore, the formation of the circulation channel is facilitated by the arranged convex blocks.
Optionally, an annular protrusion is formed on the connection shell, and the water outlet end of the central water collecting pipe is matched in the annular protrusion. Therefore, the connection of the taste filter element and the fine filter element is convenient, and the connection is quick and reliable.
According to a further embodiment of the invention, the composite filter cartridge further comprises: the first locating piece and the second locating piece are respectively arranged at two axial ends of the taste filter element and are connected with the taste filter element. Therefore, the taste filter element can be conveniently positioned in the connecting shell through the first positioning piece and the second positioning piece.
Further, taste filter core is the tubulose, taste filter core's hole constitutes pure water passageway, first locating part includes first locating body and forms first spacing arch on the first locating body, first locating body closing cap taste filter core's the one end of being close to the center water collecting pipe, first spacing arch cooperates in the taste filter core's hole, the second locating part includes second locating body and forms the spacing arch of second on the second locating body, the second locating body is established taste filter core keep away from the one end of center water collecting pipe, the spacing arch cooperation of second is in the taste filter core's hole just be formed with along the axial link up on the spacing arch of second the limp hole of second locating part.
From this, be the tubulose through setting up taste filter core, the formation of the pure water passageway on the convenient taste filter core to through the cooperation of the spacing arch of first spacing arch on the first locating part and the hole of taste filter core on the second locating part respectively, make installation, the location of taste filter core more convenient, swift, and make the runner simple structure in the compound filter core.
A composite filter element assembly according to an embodiment of the second aspect of the invention, comprising: a filter shell, wherein a raw water inlet, a pure water outlet and a concentrated water outlet are formed on the filter shell; according to the composite filter element of the embodiment of the first aspect of the invention, the composite filter element is arranged in the filter shell, the raw water inlet is communicated with the water inlet end of the pretreatment filter element, the pure water outlet is communicated with the pure water channel, and the concentrated water outlet is communicated with the concentrated water channel.
According to the composite filter element assembly provided by the embodiment of the invention, due to the fact that the diameter of the composite filter element is reduced, the composite filter element assembly is beneficial to pressure resistance of the filter shell, the reliability of the composite filter element assembly is improved, meanwhile, the miniaturization of the whole machine is facilitated, and the quality of water outlet is good.
According to an embodiment of the third aspect of the present invention, a water purification system includes: a composite filter element assembly according to an embodiment of the second aspect of the invention.
According to the water purifying system provided by the embodiment of the invention, the composite filter element component is arranged, so that the miniaturization of the whole machine is facilitated, and the quality of water outlet is good.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a water purification system according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a composite filter element assembly according to an embodiment of the invention;
FIG. 3 is a schematic illustration of a composite filter cartridge according to an embodiment of the invention;
fig. 4 is an enlarged view at a in fig. 3.
Reference numerals:
the water purification system 100,
the composite filter element assembly 1 is provided with a plurality of filter elements,
a filter housing 11, a raw water inlet 111, a pure water outlet 112, a concentrate water outlet 113,
a composite filter element 12, a pretreatment filter element 121, a fine filtration filter element 122, a center water collection tube 1221, a fine filtration membrane 1222, a mouthfeel filter element 123,
the first end cap 124, the first cuff portion 1241, the second cuff portion 1242, the first receiving cavity 1243, the mounting boss 1244,
the second end cap 125, the third burring portion 1251, the fourth burring portion 1252, the second accommodation chamber 1253,
the connecting housing 126, the boss 1261, the annular boss 1262, the through hole 1263, the seal 1264,
the first positioning member 127, the first positioning body 1271, the fifth flange portion 1272, the first stop protrusion 1273,
a second positioning member 128, a second positioning body 1281, a sixth flange portion 1282, a second limiting projection 1283, a water passage 1284,
a prepositive filter screen 2, a water inlet electromagnetic valve 3, a booster pump 4, a one-way valve 5, a high-voltage switch 6, a waste water electromagnetic valve 7,
a concentrated water passage a1, a flow passage a2, a pure water passage a3,
a water inlet pipeline b1, a pure water pipeline b2 and a concentrated water pipeline b3.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A composite filter element 12 according to an embodiment of the first aspect of the invention is described below with reference to fig. 3 and 4.
As shown in fig. 3 and 4, the composite filter element 12 according to an embodiment of the invention comprises: a filter assembly, a first end cap 124, a second end cap 125, and a mouth feel filter element 123.
Specifically, the filter assembly includes a pretreatment filter element 121 and a fine filter element 122 disposed in this order from the outside to the inside, the fine filter element 122 including a center water collection pipe 1221 and a fine filter membrane 1222 wound around the center water collection pipe 1221. Wherein, the pretreatment filter element 121 may be PAC (PP And C, PP cotton And activated carbon composite filter element), for example, the pretreatment filter element 121 may include a PP nonwoven fabric winding layer (PP nonwoven fabric winding layer precision may be set to 5 um) And an activated carbon fiber winding layer sequentially distributed from outside to inside along the radial direction of the composite filter element 12, and the pretreatment filter element 121 may effectively remove rust, silt, foreign odor, residual chlorine And part of organic matters in adsorbed water, ensure water quality entering the fine filter element 122, and prolong the service life of the fine filter element 122. The fine filter membrane 1222 of the fine filter element 122 may be a reverse osmosis membrane or a nanofiltration membrane, the fine filter element 122 may intercept bacterial viruses, heavy metals, etc., and the fine filter element 122 may be manufactured by a multi-membrane sheet rolling technology, thereby improving the performance of the fine filter element 122.
The first end cap 124 is disposed at one axial end of the filter assembly (e.g., at a lower end of the filter assembly with reference to the first end cap 124 in fig. 3) and is connected to the filter assembly to close off the one axial end of the filter assembly. For example, in the example of fig. 3, the first end cap 124 may be formed in a disc shape, the peripheral edge of the first end cap 124 is formed with a first burring part 1241 extending upward and a second burring part 1242 located inside the first burring part 1241 and disposed at intervals in the radial direction of the first end cap 124, an annular first accommodation chamber 1243 is formed between the first burring part 1241 and the second burring part 1242, and the lower end of the pre-treatment cartridge 121 is accommodated in the above-mentioned first accommodation chamber 1243 and is tightly fitted with the inner side wall of the first burring part 1241 and the outer side wall of the second burring part 1242. The upper portion of the first end cap 124 also defines a mounting boss 1244 extending toward the fine filter cartridge 122, the mounting boss 1244 fitting within the central water collection tube 1221 of the fine filter cartridge 122 to provide a stable and secure connection of the first end cap 124 to the filter assembly.
The second end cap 125 has a cylindrical shape, and the second end cap 125 is provided at the other axial end of the filter assembly (for example, at the upper end of the filter assembly with reference to the second end cap 125 in fig. 3) and is connected to the pretreatment cartridge 121. For example, in the example of fig. 3, the third and fourth burring parts 1251 and 1252 extending downward are formed on the outer and inner peripheral edges of the lower end of the second end cap 125, respectively, and a second receiving chamber 1253 having a ring shape is formed between the third and fourth burring parts 1251 and 1252, and the upper end of the pre-treatment cartridge 121 is received in the second receiving chamber 1253 and is closely fitted with the inner sidewall of the third burring part 1251 and the outer sidewall of the fourth burring part 1252, so that the second end cap 125 can be stably and reliably connected to the pre-treatment cartridge 121.
The taste filter element 123 is disposed in the second end cover 125, the taste filter element 123 is connected with the central water collecting pipe 1221 and is located at the downstream of the fine filter element 122, the taste filter element 123 may be an activated carbon layer, for example, the taste filter element 123 may be an activated carbon rod, the taste filter element 123 may remove volatile organic matters and residual chlorine, and may retain necessary minerals such as trace calcium, silicic acid, carbonate and the like, so that the taste is sweet and soft. A concentrated water channel a1 and a circulating channel a2 which are sequentially arranged from outside to inside and are mutually spaced are defined between the taste filter element 123 and the second end cover 125, the circulating channel a2 is communicated with the central water collecting pipe 1221, and a pure water channel a3 for pure water to flow out is arranged on the taste filter element 123.
The operation of the composite filter element 12 is briefly described below with reference to fig. 3.
Referring to fig. 3 (the arrow direction in the drawing is the water flow direction), raw water is primarily filtered through a pretreatment filter element 121, and then finely filtered through a fine filter element 122, and the water filtered through the fine filter element 122 is divided into two parts: wherein a part of the pure water is collected by a central water collecting pipe 1221 of the fine filter element 122, the pure water in the central water collecting pipe 1221 flows into the taste filter element 123 through the flow channel a2 to be filtered so as to improve the taste, and the pure water filtered by the taste filter element 123 flows out through a pure water channel a3 on the taste filter element; the other part is concentrated water, and the concentrated water is discharged out of the composite filter element 12 through a concentrated channel.
Through setting up taste filter core 123 at the axial end of meticulous filter core 122, make compound filter core 12 wholly set up to arrange in the body from this to can reduce the diameter of compound filter core 12, be favorable to placing the withstand voltage of the filter shell 11 of this compound filter core 12, simple structure, small, be favorable to the miniaturization of complete machine, and can realize both can adjust the taste and can realize reverse osmosis filtration water simultaneously, make the quality of leaving water good.
And, through the filter core that combines taste filter core 123, pretreatment filter core 121 and meticulous filter core 122 into the integration, reduced the joint quantity to reduce the risk of leaking. When the filter element is replaced, only one filter element needs to be replaced integrally at a time, so that the replacement frequency of a user is reduced, and the use of the user is facilitated.
According to the composite filter element 12 provided by the embodiment of the invention, the pretreatment filter element 121 and the fine filter element 122 are sequentially arranged from outside to inside, and the taste filter element 123 positioned at the downstream of the fine filter element 122 is arranged at the axial end of the fine filter element 122, so that the composite filter element 12 is integrally arranged to be vertically arranged, the diameter of the composite filter element 12 can be reduced, the pressure resistance of the filter shell 11 for placing the composite filter element 12 is beneficial, the structure is simple, the volume is small, the miniaturization of the whole machine is facilitated, and the quality of water outlet is good.
According to some alternative embodiments of the present invention, referring to fig. 3, the filter assembly is arranged in an up-down direction with the mouth feel filter element 123. Therefore, the three-dimensional arrangement of the composite filter element 12 in the up-down direction can be realized, the diameter of the composite filter element 12 is reduced, and the size of the whole machine is reduced.
Further, referring to fig. 3, the mouth feel filter element 123 is positioned above the filter assembly. Therefore, the taste filter element 123 is arranged above the filter assembly, so that the whole composite filter element 12 is reasonable and stable in structure, and meanwhile, the flow path design inside the composite filter element 12 is convenient.
According to some alternative embodiments of the present invention, referring to fig. 3 and 4, the composite filter element 12 further comprises: the connection shell 126, the connection shell 126 is arranged in the second end cover 125 and is connected with the central water collecting pipe 1221, a concentrated water channel a1 is defined between the connection shell 126 and the second end cover 125, the taste filter element 123 is arranged in the connection shell 126, and a circulating channel a2 is defined between the taste filter element 123 and the inner wall of the connection shell 126. Thus, the assembly of the mouth feel filter cartridge 123 is facilitated by the provision of the connection housing 126, and the mouth feel filter cartridge 123 can be conveniently spaced from the filter assembly.
Further, referring to fig. 4, a protrusion 1261 is provided between the inner wall of the connection housing 126 and the mouth feel filter element 123 so that the inner wall of the connection housing 126 is spaced apart from the mouth feel filter element 123, and a gap between the inner wall of the connection housing 126 and the mouth feel filter element 123 constitutes a flow passage a2. Thus, through the provided protrusion 1261, the inner wall of the connection housing 126 is spaced apart from the taste filter element 123, so that the above-mentioned flow channel a2 is formed between the taste filter element 123 and the inner wall of the connection housing 126, and thus the water coming out of the central water collecting pipe 1221 of the fine filter element 122 smoothly flows into the taste filter element 123 for filtering. Alternatively, the protrusion 1261 may be formed on the inner wall of the connection housing 126, the protrusion 1261 may be one and formed in a ring shape, and the protrusion 1261 may be rod-shaped and may include a plurality of protrusions spaced apart from one another.
Alternatively, referring to fig. 3 and 4, an annular protrusion 1262 may be formed on the connection housing 126, and the water outlet end of the center water collecting pipe 1221 (referring to the upper end of the center water collecting pipe 1221 in fig. 3 and 4) is fitted in the annular protrusion 1262. Thus, the connection of the mouth feel filter element 123 and the fine filter element 122 is facilitated by the fitting of the center water collecting pipe 1221 in the annular projection 1262 of the connection housing 126, and the connection is quick and reliable, and the pure water in the center water collecting pipe 1221 smoothly flows into the connection housing 126.
Further, a sealing member 1264 (e.g., a seal ring) may be provided between the inner peripheral wall of the above-mentioned annular projection 1262 and the outer peripheral wall of the center water collecting pipe 1221, whereby the sealing property of the connection between the connection housing 126 and the center water collecting pipe 1221 can be ensured, preventing the concentrated water in the concentrated water passage a1 from entering the connection housing 126.
According to a further embodiment of the invention, referring to fig. 3 and 4, the composite filter cartridge 12 further comprises: the first positioning piece 127 and the second positioning piece 128 are respectively arranged at two axial ends of the taste filter element 123 and are connected with the taste filter element 123. Thus, the first positioning member 127 and the second positioning member 128 can position the mouth feel filter element 123 in the axial direction (up-down direction in fig. 3), so that the mouth feel filter element 123 can be positioned in the connecting shell 126 conveniently, and the structure of the composite filter element 12 is stable and reliable.
Further, referring to fig. 3 and 4, the taste filter element 123 is tubular, and both ends of the taste filter element 123 in the axial direction can be opened, so that the taste filter element 123 has a simple structure and is easy to process and form, and the inner hole of the taste filter element 123 forms the pure water channel a3, so that the pure water channel a3 does not need to be additionally arranged on the taste filter element 123. The first positioning member 127 includes a first positioning body 1271 and a first limiting protrusion 1273 formed on the first positioning body 1271, the first positioning body 1271 covers one end of the mouth feel filter element 123 adjacent to the center water collecting pipe 1221 (refer to the lower end of the mouth feel filter element 123 in fig. 3) so that the pure water passage a3 in the mouth feel filter element 123 is separated from the center water collecting pipe 1221, water in the center water collecting pipe 1221 is prevented from directly entering the pure water passage a3 without being filtered by the mouth feel filter element 123, and the first limiting protrusion 1273 is fitted in the inner hole of the mouth feel filter element 123.
The second positioning member 128 includes a second positioning body 1281 and a second limiting projection 1283 formed on the second positioning body 1281, the second positioning body 1281 is disposed at one end of the mouth feel filter element 123 away from the central water collecting pipe 1221 (refer to the upper end of the mouth feel filter element 123 in fig. 3), the second limiting projection 1283 is fitted in the inner hole of the mouth feel filter element 123 and a water through hole 1284 penetrating the second positioning member 128 along the axial direction is formed on the second limiting projection 1283, so that pure water in the pure water channel a3 can flow out through the water through hole 1284 on the second positioning member 128 for reference.
From this, through setting up taste filter core 123 to be tubulose, make things convenient for the formation of pure water passageway a3 on the taste filter core 123 to through the cooperation of the spacing protruding 1283 of first spacing on the first locating part 127 and the hole of taste filter core 123 on the second locating part 128 respectively, make installation, the location of taste filter core 123 more convenient, swift, and make the runner simple structure in the compound filter core 12.
A composite filter element 12 according to one embodiment of the present invention is described below with reference to fig. 3 and 4.
Referring to fig. 3 and 4, in this embodiment, the composite filter element 12 includes the filter assembly described above, a first end cap 124, a second end cap 125, a mouth feel filter element 123, a connector housing 126, a first positioning member 127, and a second positioning member 128. Wherein, filter assembly includes above-mentioned pretreatment filter element 121 and meticulous filter element 122, and first end cover 124 is established in filter assembly's bottom and is all continuous with pretreatment filter element 121 and meticulous filter element 122, and second end cover 125 is established on filter assembly's top and is continuous with pretreatment filter element 121. The connection housing 126 is provided in the second end cap 125, the connection housing 126 is opened at an upper end thereof and has a through hole 1263 communicating with an inner cavity thereof at a lower end thereof, an annular protrusion 1262 extending downward is formed at a circumferential edge of the through hole 1263, and an upper end of the center water collecting pipe 1221 is fitted in the annular protrusion 1262.
The mouth feel filter element 123 is provided in the connection housing 126, and the first positioning member 127 and the second positioning member 128 are provided at the lower end and the upper end of the mouth feel filter element 123, respectively. The above-mentioned projection 1261 is formed on the bottom wall of the connection housing 126, the first positioning member 127 is located in the connection housing 126 and the first positioning body 1271 of the first positioning member 127 is supported on the above-mentioned projection 1261 so that the first positioning body 1271 is spaced apart from the bottom wall of the connection housing 126, so that pure water in the central water collecting pipe 1221 can smoothly flow into the flow passage a2 of the connection housing 126.
The first positioning body 1271 is circular, the periphery of the first positioning body 1271 is provided with a fifth flanging part 1272 extending upwards, the lower end of the taste filter element 123 is abutted against the inner peripheral wall of the fifth flanging part 1272, so that the stability of the cooperation of the first positioning piece 127 and the taste filter element 123 can be further increased, the fifth flanging part 1272 is spaced from the inner peripheral wall of the connecting shell 126, and at the moment, the gap between the first positioning piece 127 and the inner wall of the connecting shell 126 and the gap between the outer peripheral wall of the taste filter element 123 and the inner wall of the connecting shell 126 jointly form the circulation channel a2. The second positioning body 1281 is circular, and a sixth flanging part 1282 extending downwards is formed on the periphery of the second positioning body 1281, and the upper end of the taste filter element 123 is abutted against the inner peripheral wall of the sixth flanging part 1282, so that the stability of the cooperation of the second positioning piece 128 and the taste filter element 123 can be further increased.
A composite filter element assembly 1 according to an embodiment of the second aspect of the invention is described below with reference to fig. 2-4.
As shown in fig. 2-4, a composite filter element assembly 1 according to an embodiment of the second aspect of the invention comprises: the filter housing 11 and the composite filter element 12 according to the above-described first aspect of the present invention, the filter housing 11 is formed with a raw water inlet 111, a pure water outlet 112, and a concentrate water outlet 113, the raw water inlet 111, the pure water outlet 112, and the concentrate water outlet 113 may be formed at a lower end of the filter housing 11, the composite filter element 12 is provided in the filter housing 11, the raw water inlet 111 communicates with the water inlet end of the pretreatment filter element 121, the pure water outlet 112 communicates with the pure water passage a3, and the concentrate water outlet 113 communicates with the concentrate water passage a 1. Thus, raw water can enter the filter shell 11 through the raw water inlet 111 of the filter shell 11, flows into the pretreatment filter core 121 through the water inlet end of the pretreatment filter core 121 for preliminary filtration, water after preliminary filtration by the pretreatment filter core 121 is sequentially filtered by the fine filter core 122 and the taste filter core 123, and pure water entering the pure water channel a3 flows out through the pure water outlet 112 on the filter shell 11 to be drunk, and concentrated water entering the concentrated water channel a1 is discharged out of the filter shell 11 through the concentrated water outlet 113 on the filter shell 11.
It can be appreciated that the diameter of the composite filter element 12 is reduced, so that the pressure resistance requirement on the filter shell 11 is low, the pressure resistance of the filter shell 11 is facilitated, the cost and reliability of the composite filter element assembly 1 are reduced, the miniaturization of the whole machine is facilitated, and meanwhile, the good water outlet quality can be ensured.
According to the composite filter element assembly 1 provided by the embodiment of the invention, due to the arrangement of the composite filter element 12, the diameter of the composite filter element 12 is reduced, so that the pressure resistance of the filter shell 11 is facilitated, the reliability of the composite filter element assembly 1 is improved, the miniaturization of the whole machine is facilitated, and the quality of water outlet is good.
A water purification system 100 according to an embodiment of the third aspect of the present invention is described below with reference to fig. 1 to 4.
As shown in fig. 1 to 4, a water purification system 100 according to an embodiment of the third aspect of the present invention includes: the composite filter element assembly 1 according to the above-described second aspect embodiment of the invention.
According to the water purifying system 100 provided by the embodiment of the invention, the composite filter element assembly 1 is arranged, so that the miniaturization of the whole machine is facilitated, and the quality of the discharged water is good.
In one embodiment of the present invention, referring to fig. 1, a water purification system 100 includes: the water inlet pipeline b1, the pure water pipeline b2, the concentrated water pipeline b3, the preposed filter screen 2, the water inlet electromagnetic valve 3, the booster pump 4, the composite filter element assembly 1, the one-way valve 5, the high-pressure switch 6, the tap and the wastewater electromagnetic valve 7. Wherein, inlet line b1 links to each other with the raw water import 111 of straining shell 11, and leading filter screen 2, water inlet solenoid valve 3 and booster pump 4 concatenate in proper order on inlet line b1 in the rivers direction, and leading filter screen 2 is arranged in filtering rust, silt etc. that the size is great in the raw water, and water inlet solenoid valve 3 is used for controlling the break-make of inlet line b1, and booster pump 4 is used for improving the water pressure.
The pure water pipeline b2 is connected with the pure water outlet 112 on the filter shell 11, the check valve 5, the high-pressure switch 6 and the water tap are sequentially connected in series on the pure water pipeline b2 in the water flow direction, the check valve 5 is in one-way conduction in the direction from the pure water outlet 112 to the water tap, the check valve 5 is used for preventing water in the pure water pipeline b2 from flowing backwards into the composite filter element 12, and the high-pressure switch 6 can detect whether the water tap is in an open state or a closed state according to the water pressure in the pure water pipeline b 2. The waste water solenoid valve 7 is connected in series with the concentrated water pipeline b3, and the waste water solenoid valve 7 is used for adjusting the proportion of waste water so as to balance the working pressure of the water purifying system 100.
Thus, when the faucet is opened, the water purification system 100 is opened to operate, the water inlet electromagnetic valve 3 is opened, the high-pressure switch 6 is closed, raw water enters the raw water pipeline and sequentially flows through the front filter screen 2, the water inlet electromagnetic valve 3 and the booster pump 4, then flows into the composite filter element 12 through the raw water inlet 111 on the filter shell 11 to be purified, water treated by the composite filter element 12 flows into the pure water pipeline b2 through the pure water outlet 112 on the filter shell 11, finally flows out through the faucet for reference, and the other part flows into the concentrated water pipeline b3 through the concentrated water outlet 113 on the filter shell 11 to be discharged.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A composite filter cartridge, comprising:
the filter assembly comprises a pretreatment filter element and a fine filter element which are sequentially arranged from outside to inside, and the fine filter element comprises a central water collecting pipe and a fine filter membrane wound on the central water collecting pipe;
the first end cover is arranged at one axial end of the filter assembly and is connected with the filter assembly to cover one axial end of the filter assembly;
the second end cover is cylindrical, is arranged at the other axial end of the filter assembly and is connected with the pretreatment filter element;
the taste filter element is arranged in the second end cover, is connected with the central water collecting pipe and is positioned at the downstream of the fine filter element, a concentrated water channel and a circulating channel which are sequentially arranged from outside to inside and are mutually spaced are defined between the taste filter element and the second end cover, the circulating channel is communicated with the central water collecting pipe, and a pure water channel for pure water to flow out is formed in the taste filter element;
the taste filter element is positioned above the filter component;
the connecting shell is arranged in the second end cover and is connected with the central water collecting pipe, the concentrated water channel is defined between the connecting shell and the second end cover, the taste filter element is arranged in the connecting shell, and the circulation channel is defined between the taste filter element and the inner wall of the connecting shell;
a bump is arranged between the inner wall of the connecting shell and the taste filter element so that the inner wall of the connecting shell is spaced apart from the taste filter element, and a gap between the inner wall of the connecting shell and the taste filter element forms the circulation channel;
the connecting shell is provided with an annular bulge, and the water outlet end of the central water collecting pipe is matched in the annular bulge.
2. The composite filter element of claim 1, wherein the filter element and the mouth feel filter element are arranged in an up-down direction.
3. The composite filter element of claim 1, further comprising: the first locating piece and the second locating piece are respectively arranged at two axial ends of the taste filter element and are connected with the taste filter element.
4. A composite filter element according to claim 3, wherein the mouth-feel filter element is tubular, the inner bore of the mouth-feel filter element constitutes the pure water channel, the first positioning member comprises a first positioning body and a first limiting protrusion formed on the first positioning body, the first positioning body covers one end of the mouth-feel filter element adjacent to the central water collecting pipe, the first limiting protrusion is fitted in the inner bore of the mouth-feel filter element, the second positioning member comprises a second positioning body and a second limiting protrusion formed on the second positioning body, the second positioning body is arranged at one end of the mouth-feel filter element far away from the central water collecting pipe, the second limiting protrusion is fitted in the inner bore of the mouth-feel filter element, and a water through hole axially penetrating through the second positioning member is formed on the second limiting protrusion.
5. A composite filter element assembly, comprising:
a filter shell, wherein a raw water inlet, a pure water outlet and a concentrated water outlet are formed on the filter shell;
the composite filter cartridge according to any one of claims 1-4, provided within the filter housing, the raw water inlet communicating with a water inlet end of the pretreatment filter cartridge, the pure water outlet communicating with the pure water passage, and the concentrate water outlet communicating with the concentrate water passage.
6. A water purification system, comprising: a composite filter element assembly according to claim 5.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132572.9A CN108569787B (en) | 2017-03-07 | 2017-03-07 | Composite filter element, composite filter element assembly and water purification system |
| RU2017128093A RU2676282C1 (en) | 2017-03-07 | 2017-05-25 | Composite filter unit cartridge, composite filter unit cartridge assembly and water purification system |
| US15/545,730 US20200038809A1 (en) | 2017-03-07 | 2017-05-25 | Composite filter cartridge, composite filter cartridge assembly and water purification system |
| EP17735369.5A EP3424886B1 (en) | 2017-03-07 | 2017-05-25 | Composite filter element, composite filter element assembly, and water purification system |
| PCT/CN2017/086002 WO2018161439A1 (en) | 2017-03-07 | 2017-05-25 | Composite filter element, composite filter element assembly, and water purification system |
| KR1020177023397A KR20180108410A (en) | 2017-03-07 | 2017-05-25 | Composite filter element, composite filter element assembly and water purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132572.9A CN108569787B (en) | 2017-03-07 | 2017-03-07 | Composite filter element, composite filter element assembly and water purification system |
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| Publication Number | Publication Date |
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| CN108569787A CN108569787A (en) | 2018-09-25 |
| CN108569787B true CN108569787B (en) | 2023-09-19 |
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| CN201710132572.9A Active CN108569787B (en) | 2017-03-07 | 2017-03-07 | Composite filter element, composite filter element assembly and water purification system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911986A (en) * | 2019-02-13 | 2019-06-21 | 韩佳环保设备有限公司 | Integral type integrated water purifier filter core and water purifier |
| CN109987741A (en) * | 2019-03-30 | 2019-07-09 | 佛山市云米电器科技有限公司 | A kind of filter assemblies structure of filter core |
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| CN205367921U (en) * | 2015-12-16 | 2016-07-06 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element , composite filter element subassembly and purifier |
| CN205528039U (en) * | 2016-01-25 | 2016-08-31 | 日出东方太阳能股份有限公司 | Ordinary pressure pipeline formula purifier |
| CN206562355U (en) * | 2017-03-07 | 2017-10-17 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element, composite filter element component and water cleaning systems |
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| CN205170533U (en) * | 2015-10-29 | 2016-04-20 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element and have its water processing system |
| CN205367921U (en) * | 2015-12-16 | 2016-07-06 | 佛山市顺德区美的饮水机制造有限公司 | Composite filter element , composite filter element subassembly and purifier |
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