WO2018161439A1 - 复合滤芯、复合滤芯组件及净水系统 - Google Patents
复合滤芯、复合滤芯组件及净水系统 Download PDFInfo
- Publication number
- WO2018161439A1 WO2018161439A1 PCT/CN2017/086002 CN2017086002W WO2018161439A1 WO 2018161439 A1 WO2018161439 A1 WO 2018161439A1 CN 2017086002 W CN2017086002 W CN 2017086002W WO 2018161439 A1 WO2018161439 A1 WO 2018161439A1
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- WIPO (PCT)
- Prior art keywords
- filter element
- filter
- mouth
- water
- composite
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 180
- 239000002131 composite material Substances 0.000 title claims abstract description 90
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 235000019659 mouth feeling Nutrition 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 238000001223 reverse osmosis Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001728 nano-filtration Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010013911 Dysgeusia Diseases 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- 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
- B01D61/04—Feed pretreatment
-
- 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
- B01D61/10—Accessories; Auxiliary operations
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
- C02F9/20—Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/06—Specific process operations in the permeate stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2626—Absorption or adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2649—Filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/21—Specific headers, end caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/44—Cartridge types
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/90—Additional auxiliary systems integrated with the module or apparatus
- B01D2313/901—Integrated prefilter
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
-
- 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
Definitions
- 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.
- the commonly used composite filter elements include carbon rod + ultrafiltration filter element, PP + activated carbon composite filter element, granular activated carbon + ultrafiltration, etc., and the composite of nanofiltration membrane or reverse osmosis membrane due to sealing pressure resistance and performance reasons.
- the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a composite filter element which is simple, compact, small in diameter and good in pressure resistance.
- the invention further proposes a composite filter element assembly having the above composite filter element.
- the present invention also proposes a water purification system having the above composite filter element assembly.
- a composite filter cartridge includes: a filter assembly including a pretreatment filter cartridge and a fine filter cartridge disposed in order from the outside to the inside, the fine filter cartridge including a central water collection tube and a winding a fine filter membrane on the central water collecting pipe; a first end cover, the first end cover is disposed at one axial end of the filter assembly and connected to the filter assembly to cover an axial end of the filter assembly; a second end cover having a cylindrical shape, the second end cover being disposed at the other axial end of the filter assembly and connected to the pretreatment filter element; the mouth filter element, the mouth filter element being disposed at In the second end cover, the mouth-feeling filter element is connected to the central water collecting tube and located downstream of the fine filter element, and the mouth-shaped filter element and the second end cover are defined to be arranged from the outside to the inside. Condensed water passages and flow passages spaced apart from each other, the circulation passages being in communication with the central water collection tube, the mouth-shaped filter element
- the pre-processing filter element and the fine filter element are arranged in order from the outside to the inside, and the mouth-shaped filter element located downstream of the fine filter element is disposed at the axial end of the fine filter element, thereby making the composite filter element as a whole
- the arrangement of the body arrangement is arranged, so that the diameter of the composite filter element can be reduced, the pressure resistance of the filter case on which the composite filter element is placed is favorable, the structure is simple, the volume is small, the miniaturization of the whole machine is facilitated, and the quality of the water discharge is good.
- the filter assembly and the mouthfeel filter are arranged in an up and down direction.
- the three-dimensional arrangement of the composite filter element in the up and down direction can be realized, and the diameter of the composite filter element can be reduced, which is advantageous for reducing the size of the whole machine.
- the mouthfeel filter is located above the filter assembly. Thereby, the structure of the entire composite filter element is made reasonable and stable.
- the composite filter cartridge further includes: a connecting shell disposed in the second end cap and connected to the central water collecting pipe, the connecting shell and the first The concentrated water passage is defined between the two end caps, the mouthfeel filter is disposed in the connecting shell, and the flow passage is defined between the mouth filter and the inner wall of the connecting shell.
- a bump is disposed between the inner wall of the connecting shell and the mouth filter to separate an inner wall of the connecting shell from the mouth filter, and between the inner wall of the connecting shell and the mouth filter The gap constitutes the flow passage. Thereby, the formation of the flow passage is facilitated by the provided bumps.
- an annular protrusion is formed on the connecting shell, and a water outlet end of the central water collecting tube is fitted in the annular protrusion.
- the composite filter element further includes: a first positioning member and a second positioning member, wherein the first positioning member and the second positioning member are respectively disposed at axial ends of the mouthfeel filter element And connected to the mouth filter.
- the mouth-effect filter element has a tubular shape, and the inner hole of the mouth-effect filter element constitutes the pure water passage
- the first positioning member includes a first positioning body and a first limit formed on the first positioning body a first positioning body covering an end of the mouth-shaped filter element adjacent to the central water collecting tube
- the first limiting protrusion is fitted in an inner hole of the mouth-feeling filter element
- the second positioning member The second positioning body and the second limiting protrusion formed on the second positioning body, the second positioning body is disposed at an end of the mouth-feeling filter core away from the central water collecting tube
- the second limit The protrusion is fitted in the inner hole of the mouth-shaped filter element
- the second limiting protrusion is formed with a water-passing hole extending through the second positioning member in the axial direction.
- the formation of the pure water passage on the mouth filter element is facilitated, and the first limit protrusion on the first positioning member and the second limit protrusion on the second positioning member are respectively.
- the cooperation with the inner hole of the mouth filter element makes the installation and positioning of the mouth filter element more convenient and quick, and the structure of the flow channel in the composite filter element is simple.
- a composite filter element assembly comprising: a filter housing having a raw water inlet, a pure water outlet, and a concentrated water outlet formed thereon; the composite filter cartridge according to the first aspect of the present invention, The composite filter element is disposed in the filter housing, the raw water inlet is in communication with the inlet end of the pretreatment filter element, and the pure water outlet is in communication with the pure water passage, the concentrated water outlet and the concentrated water outlet The channels are connected.
- the composite filter element assembly according to the embodiment of the present invention by providing the above composite filter element, due to the straightness of the composite filter element
- the diameter is reduced, which is favorable for the pressure resistance of the filter casing, improves the reliability of the composite filter element assembly, and is advantageous for miniaturization of the whole machine, and the quality of the effluent is good.
- the miniaturization of the whole machine is facilitated, and the quality of the effluent is good.
- FIG. 1 is a schematic view of a water purification system in accordance with an embodiment of the present invention
- FIG. 2 is a schematic illustration of a composite cartridge assembly in accordance with an embodiment of the present invention.
- FIG. 3 is a schematic view of a composite filter cartridge in accordance with an embodiment of the present invention.
- Figure 4 is an enlarged view of a portion A in Figure 3.
- Composite filter element 12 pretreatment filter element 121, fine filter element 122, central water collection tube 1221, fine filtration membrane 1222, taste filter element 123,
- first end cover 124 a first end cover 124, a first flange portion 1241, a second flange portion 1242, a first receiving cavity 1243, and a mounting boss 1244.
- a second end cover 125 a third flange portion 1251, a fourth flange portion 1252, and a second receiving cavity 1253.
- first positioning member 127 a first positioning member 127, a first positioning body 1271, a fifth flange portion 1272, and a first limiting protrusion 1273.
- Front filter 2 water inlet solenoid valve 3, booster pump 4, check valve 5, high pressure switch 6, waste water solenoid valve 7,
- Concentrated water channel a1 circulation channel a2, pure water channel a3,
- the water inlet pipe b1 The water inlet pipe b1, the pure water pipe b2, and the concentrated water pipe b3.
- connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
- a composite filter element 12 in accordance with an embodiment of the first aspect of the present invention is described below with reference to FIGS. 3 and 4.
- a composite filter element 12 includes a filter assembly, a first end cap 124, a second end cap 125, and a mouthfeel filter 123.
- the filter assembly includes a pretreatment filter element 121 and a fine filter cartridge 122 that are disposed in order from the outside to the inside, and the fine filter cartridge 122 includes a center water collection tube 1221 and a fine filtration membrane 1222 wound around the center water collection tube 1221.
- the pretreatment filter element 121 may be a PAC (PP And C, PP cotton and activated carbon composite filter element) pretreatment filter element 121.
- the pretreatment filter element 121 may include PP which is sequentially distributed from the outside to the inside along the radial direction of the composite filter element 12.
- the woven fabric winding layer (the precision of the PP non-woven fabric winding layer can be set to 5 um) and the activated carbon fiber winding layer, the pretreatment filter element 121 can effectively remove rust, sediment, adsorption of color, odor, residual chlorine and Part of the organic matter ensures the water quality entering the fine filter element 122 and prolongs the life of the fine filter element 122.
- the fine filter membrane 1222 of the fine filter cartridge 122 can be a reverse osmosis membrane or a nanofiltration membrane, and the fine filter cartridge 122 can intercept bacterial viruses, heavy metals, etc., and the fine filter cartridge 122 can be made by a multi-film sheet rolling technique, thereby improving The performance of the fine filter cartridge 122.
- a first end cap 124 is provided at one axial end of the filter assembly (eg, disposed at a lower end of the filter assembly with reference to the first end cap 124 of FIG. 3) and is coupled to the filter assembly to cap the axial end of the filter assembly.
- the first end cover 124 may be formed in a disc shape, and the circumference of the first end cover 124 is formed with an upwardly extending first flange portion 1241 and at the inner side of the first flange portion 1241 and at the first end cover 124.
- a second flange portion 1242 is disposed in the radial direction, and an annular first receiving cavity 1243 is formed between the first flange portion 1241 and the second flange portion 1242.
- the lower end of the pretreatment filter element 121 is accommodated in the above
- the inside of the receiving cavity 1243 is in close fitting with the inner side wall of the first flange portion 1241 and the outer sidewall of the second flange portion 1242.
- the first end cover 124 further defines a mounting boss 1244 extending toward the fine filter element 122.
- the mounting boss 1244 is fitted in the central water collecting tube 1221 of the fine filter element 122, so that the first end cover 124 and the filter assembly can be stabilized. Connect reliably.
- the second end cover 125 has a cylindrical shape, and the second end cover 125 is disposed at the other axial end of the filter assembly (for example, the second end cover 125 of FIG. 3 is disposed at the upper end of the filter assembly) and is connected to the pretreatment filter element 121.
- the outer peripheral edge and the inner peripheral edge of the lower end of the second end cover 125 are respectively formed with a downwardly extending third flange portion 1251, a fourth flange portion 1252, and a third flange portion.
- An annular second receiving cavity 1253 is formed between the 1251 and the fourth flange portion 1252.
- the upper end of the pretreatment filter element 121 is received in the second receiving cavity 1253 and the inner side wall and the fourth flange of the third flange portion 1251.
- the outer side wall of the portion 1252 is tightly fitted so that the second end cover 125 can be stably and reliably connected to the pretreatment filter element 121.
- the mouth-shaped filter element 123 is disposed in the second end cover 125.
- the mouth-feel filter element 123 is connected to the central water collection tube 1221 and located downstream of the fine filter element 122.
- the mouth-feel filter element 123 can be an activated carbon layer.
- the mouth-feel filter element 123 can be an activated carbon rod, and the mouth-feel filter element 123 It can remove volatile organic compounds, residual residual chlorine, and can retain the necessary minerals such as trace calcium, silicic acid, carbonate, etc., which can make the taste sweet and soft.
- the concentrating filter element 123 and the second end cover 125 define a condensed water passage a1 and a flow passage a2 which are sequentially arranged from the outside to the inside and are spaced apart from each other.
- the circulation passage a2 communicates with the central water collection tube 1221, and the taste filter element 123 is provided with pure The pure water passage a3 from which the water flows.
- the raw water is firstly filtered by the pretreatment filter element 121, and then finely filtered by the fine filter element 122, and the water filtered by the fine filter element 122 is divided into two parts: one part is The pure water and the pure water are collected through the central water collection tube 1221 of the fine filter element 122, and the pure water in the central water collection tube 1221 is filtered through the flow-through filter element 123 of the flow passage a2 to improve the taste, and the pure water filtered by the mouth filter element 123 is filtered.
- the pure water passage a3 on the mouthpiece core flows out; the other part is concentrated water, and the concentrated water is discharged through the concentration passage 12 to the composite filter element 12.
- the composite filter element 12 is integrally disposed as a body arrangement, so that the diameter of the composite filter element 12 can be reduced, and the filter case 11 of the composite filter element 12 can be placed.
- the pressure resistance is favorable, the structure is simple, the volume is small, and the whole machine is miniaturized, and the mouth can be adjusted and the reverse osmosis filtered water can be realized, so that the quality of the effluent is good.
- the integrated filter element 123 and the pre-processing filter element 121 and the fine filter element 122 are integrated into one body.
- the filter element reduces the number of joints and thus reduces the risk of water leakage.
- When replacing the filter element only one filter element needs to be replaced at one time, which reduces the frequency of user replacement and is convenient for the user.
- the pretreatment filter element 121 and the fine filter element 122 are sequentially disposed from the outside to the inside, and the mouth-shaped filter element 123 located downstream of the fine filter element 122 is disposed at the axial end of the fine filter element 122. Therefore, the composite filter element 12 is integrally disposed to form a body arrangement, so that the diameter of the composite filter element 12 can be reduced, and the pressure resistance of the filter case 11 on which the composite filter element 12 is placed is favorable, the structure is simple, the volume is small, and the whole machine is small. The quality of the water is good.
- the filter assembly and the mouthfeel filter 123 are arranged in the up and down direction.
- the three-dimensional arrangement of the composite filter element 12 in the up and down direction can be achieved, and the diameter of the composite filter element 12 can be reduced, which is advantageous for reducing the size of the whole machine.
- the mouthfeel filter 123 is located above the filter assembly.
- the structure of the entire composite filter element 12 is reasonable and stable, and the flow path design inside the composite filter element 12 is facilitated.
- the composite filter element 12 further includes: a connecting shell 126 disposed in the second end cap 125 and connected to the central water collecting tube 1221, the connecting shell 126 and A concentrated water passage a1 is defined between the second end covers 125, and the mouth-shaped filter element 123 is disposed in the connecting shell 126, and the flow passage a2 is defined between the mouth-shaped filter element 123 and the inner wall of the connecting shell 126.
- a bump 1261 is disposed between the inner wall of the connecting shell 126 and the mouth filter 123 to separate the inner wall of the connecting shell 126 from the mouth filter 123, and the gap between the inner wall of the connecting shell 126 and the mouth filter 123
- the circulation passage a2 is formed.
- the inner wall of the connecting shell 126 is spaced apart from the mouth-feeling filter 123 by the protrusion 1261 provided, so that the above-mentioned flow passage a2 is formed between the mouth-shaped filter element 123 and the inner wall of the connecting shell 126, thereby making the filter from the fine filter
- the water from the center water collection tube 1221 of 122 smoothly flows through the inlet filter element 123 for filtration.
- the above-mentioned bumps 1261 may be formed on the inner wall of the connecting shell 126.
- the bumps 1261 may be one and formed into a ring shape, and the bumps 1261 may also be rod-shaped and may include a plurality of spaced apart distributions.
- the connecting shell 126 may be formed with an annular protrusion 1262, and the water outlet end of the center water collecting tube 1221 (refer to the upper end of the center water collecting tube 1221 in FIGS. 3 and 4) is fitted to the annular convex portion.
- the inner water collecting tube 1221 is fitted into the annular protrusion 1262 of the connecting shell 126, which facilitates the connection between the mouth filter element 123 and the fine filter element 122, and the connection is quick and reliable, and the pure water in the center water collecting tube 1221 is smooth. It flows into the connection housing 126.
- a sealing member 1264 (for example, a sealing ring) may be disposed between the inner peripheral wall of the annular protrusion 1262 and the outer peripheral wall of the central water collecting tube 1221, thereby ensuring the connection between the connecting housing 126 and the central water collecting tube 1221.
- the sealing property prevents the concentrated water in the concentrated water passage a1 from entering the connecting case 126.
- the composite filter element 12 further includes: a first positioning member 127 and a second positioning member 128.
- the first positioning member 127 and the second positioning member 128 are respectively disposed on the mouth filter 123. Both ends of the axial direction are connected to the mouth filter 123.
- the mouth-shaped filter element 123 can be restrained in the axial direction (refer to the up-and-down direction in FIG. 3), so that the mouth-shaped filter element 123 can be conveniently positioned at
- the inside of the connecting shell 126 makes the structure of the composite filter element 12 stable and reliable.
- the mouth-shaped filter element 123 is tubular, and both ends of the mouth-shaped filter element 123 can be opened, thereby making the structure of the mouth-feeling filter element 123 simple and easy to process, and the inner hole of the mouth-shaped filter element 123 is pure.
- the water passage a3 eliminates the need to additionally provide a pure water passage a3 on the mouth filter cartridge 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-shaped filter element 123 adjacent to the central water collecting tube 1221.
- the lower end of the mouthpiece filter element 123 is separated from the center water collection tube 1221 to prevent the water in the center water collection tube 1221 from being filtered through the mouth filter element 123 and directly entering the pure water channel a3.
- the first limiting protrusion 1273 is fitted in the inner hole of the mouth filter element 123.
- the second positioning member 128 includes a second positioning body 1281 and a second limiting protrusion 1283 formed on the second positioning body 1281.
- the second positioning body 1281 is disposed at an end of the mouth-shaped filter element 123 away from the central water collecting tube 1221. 3, the upper end of the mouthpiece filter 123), the second limiting protrusion 1283 is fitted in the inner hole of the mouth-shaped filter element 123, and the second limiting protrusion 1283 is formed with a water-passing hole 1284 extending through the second positioning member 128 in the axial direction. Therefore, the pure water in the pure water passage a3 can flow out through the water passing hole 1284 in the second positioning member 128 for reference.
- the formation of the pure water passage a3 on the mouth-shaped filter element 123 is facilitated by arranging the mouth-feel filter element 123 in a tubular shape, and passes through the first limiting protrusion 1273 on the first positioning member 127 and the second positioning member 128.
- the cooperation of the second limiting protrusions 1283 and the inner holes of the mouth-shaped filter element 123 respectively makes the installation and positioning of the mouth-shaped filter element 123 more convenient and quick, and the structure of the flow channel in the composite filter element 12 is simple.
- a composite filter element 12 in accordance with an embodiment of the present invention is described below with reference to FIGS. 3 and 4.
- the composite filter element 12 includes the above filter assembly, first end cover 124, second end cover 125, mouth filter element 123, connection housing 126, first positioning member 127, and second Positioning member 128.
- the filter assembly includes the above-mentioned pretreatment filter element 121 and the fine filter element 122.
- the first end cover 124 is disposed at the bottom of the filter assembly and is connected to both the pretreatment filter element 121 and the fine filter element 122, and the second end cover 125 is disposed on the filter assembly.
- the top end is connected to the pretreatment filter element 121.
- the connecting shell 126 is disposed in the second end cover 125.
- the upper end of the connecting shell 126 is open and the lower end has a through hole 1263 communicating with the inner cavity thereof.
- the periphery of the through hole 1263 is formed with a downwardly extending annular protrusion 1262, the center
- the upper end of the water collection tube 1221 is fitted in the annular projection 1262.
- the mouth filter element 123 is disposed in the connecting shell 126, and the first positioning member 127 and the second positioning member 128 are respectively disposed on the mouthfeel The lower end and the upper end of the filter element 123.
- the first positioning body 127 is located in the connecting housing 126 and the first positioning body 1271 of the first positioning member 127 is supported on the protruding block 1261 to make the first positioning body 1271. It is spaced apart from the bottom wall of the connecting case 126 so that the pure water in the center water collecting pipe 1221 can smoothly flow into the flow passage a2 of the connecting case 126.
- the first positioning body 1271 has a circular shape.
- the periphery of the first positioning body 1271 is formed with an upwardly extending fifth flange portion 1272.
- the lower end of the mouth-shaped filter element 123 and the inner peripheral wall of the fifth flange portion 1272 are resisted, so that further The stability of the first positioning member 127 and the mouth-shaped filter element 123 is increased.
- the fifth flange portion 1272 is spaced apart from the inner peripheral wall of the connecting shell 126. At this time, the gap between the first positioning member 127 and the inner wall of the connecting shell 126 and The gap between the outer peripheral wall of the mouth filter 123 and the inner wall of the connecting case 126 constitutes the above-described flow passage a2.
- the second positioning body 1281 has a circular shape, and the circumference of the second positioning body 1281 is formed with a sixth flange portion 1282 extending downward. The upper end of the mouth-shaped filter element 123 and the inner peripheral wall of the sixth flange portion 1282 are resisted, so that The stability of the second positioning member 128 and the mouth filter cartridge 123 is further increased.
- a composite filter element assembly 1 according to an embodiment of the second aspect of the present invention will now be described with reference to Figs.
- a composite filter element assembly 1 according to an embodiment of the second aspect of the present invention comprises: a filter housing 11 and a composite filter element 12 according to the first aspect of the present invention, wherein the filter housing 11 is formed with raw water.
- the inlet 111, the pure water outlet 112 and the concentrated water outlet 113, the raw water inlet 111, the pure water outlet 112 and the concentrated water outlet 113 may be formed at the lower end of the filter casing 11, the composite filter element 12 is disposed in the filter casing 11, the raw water inlet 111 and the pre-water inlet 111
- the inlet end of the treatment cartridge 121 is in communication
- the pure water outlet 112 is in communication with the pure water passage a3
- the concentrated water outlet 113 is in communication with the concentrated water passage a1. Therefore, the raw water can enter the filter casing 11 through the raw water inlet 111 of the filter casing 11 and flow into the pretreatment filter core 121 through the inlet end of the pretreatment filter element 121 for preliminary filtration.
- the water after preliminary filtration through the pretreatment filter element 121 is subjected to fine filtration in sequence.
- the pure water entering the pure water passage a3 flows out through the pure water outlet 112 on the filter casing 11 to be consumed, and the concentrated water entering the concentrated water passage a1 passes through the concentrated water outlet on the filter casing 11. 113 discharges the filter housing 11.
- the pressure resistance of the filter casing 11 is required to be low, thereby contributing to the pressure resistance of the filter casing 11, reducing the cost and reliability of the composite filter element assembly 1, and Conducive to the miniaturization of the whole machine, while ensuring good effluent quality.
- the composite filter element assembly 1 of the embodiment of the present invention by providing the composite filter element 12 described above, since the diameter of the composite filter element 12 is reduced, the pressure resistance of the filter case 11 is favorable, and the reliability of the composite filter element assembly 1 is improved, and at the same time, it is advantageous.
- the miniaturization of the whole machine and the quality of the effluent are good.
- a water purification system 100 according to an embodiment of the third aspect of the present invention will now be described with reference to Figs.
- a water purification system 100 includes: a composite filter element assembly 1 according to the above second embodiment of the present invention.
- the miniaturization of the whole machine is facilitated, and the quality of the effluent is good.
- the water purification system 100 includes: an inlet water pipe b1, a pure water pipe b2, a concentrated water pipe b3, a pre-filter net 2, a water inlet solenoid valve 3, and a booster pump 4. , composite filter element 1, check valve 5, high pressure switch 6, faucet and waste water solenoid valve 7.
- the water inlet pipe b1 is connected to the raw water inlet 111 of the filter casing 11, and in the direction of water flow, the front filter net 2, the water inlet solenoid valve 3 and the booster pump 4 are sequentially connected in series to the water inlet pipe b1, and the front filter net 2
- the water inlet solenoid valve 3 is used to control the on and off of the water inlet pipe b1, and the booster pump 4 is used to increase the water inlet pressure.
- the pure water pipe b2 is connected to the pure water outlet 112 on the filter casing 11, and the check valve 5, the high pressure switch 6 and the faucet are sequentially connected in series on the pure water pipe b2 in the direction of the water flow, and the check valve 5 is in the pure water.
- the outlet 112 is unidirectionally guided in the direction of the faucet, and the check valve 5 is used to prevent the water in the pure water pipe b2 from flowing back into the composite filter element 12.
- the high pressure switch 6 can be detected according to the water pressure in the pure water pipe b2. Open or closed.
- the waste water solenoid valve 7 is connected in series to the concentrated water line b3, and the waste water electromagnetic valve 7 is used to adjust the proportion of the waste water to balance the working pressure of the water purification system 100.
- the water purification system 100 is opened, the water inlet solenoid valve 3 is opened, the high pressure switch 6 is closed, the raw water enters the raw water pipeline and flows through the pre-filter 2, the inlet solenoid valve 3 and The pump 4 is pressurized, and then flows into the composite filter element 12 through the raw water inlet 111 on the filter casing 11 for purification treatment.
- the water treated by the composite filter element 12 is partially pure water and flows into the pure water pipe through the pure water outlet 112 on the filter casing 11.
- the faucet flows out of the reference, and the other part is concentrated water and flows into the concentrated water pipe b3 through the concentrated water outlet 113 on the filter casing 11 to be discharged.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims (10)
- 一种复合滤芯,其特征在于,包括:过滤组件,所述过滤组件包括由外向内依次设置的预处理滤芯和精细过滤滤芯,所述精细过滤滤芯包括中心集水管和卷绕在所述中心集水管上的精细过滤膜;第一端盖,所述第一端盖设在所述过滤组件的轴向一端且与所述过滤组件相连以封盖所述过滤组件的轴向一端;第二端盖,所述第二端盖呈筒形,所述第二端盖设在所述过滤组件的轴向另一端且与所述预处理滤芯相连;口感滤芯,所述口感滤芯设在所述第二端盖内,所述口感滤芯与所述中心集水管相连且位于所述精细过滤滤芯的下游,所述口感滤芯与所述第二端盖之间限定出由外向内依次设置且相互间隔开的浓缩水通道和流通通道,所述流通通道与所述中心集水管连通,所述口感滤芯上设有供纯水流出的纯水通道。
- 根据权利要求1所述的复合滤芯,其特征在于,所述过滤组件与所述口感滤芯沿上下方向排布。
- 根据权利要求2所述的复合滤芯,其特征在于,所述口感滤芯位于所述过滤组件的上方。
- 根据权利要求1-3中任一项所述的复合滤芯,其特征在于,还包括:连接壳,所述连接壳设在所述第二端盖内且与所述中心集水管相连,所述连接壳与所述第二端盖之间限定出所述浓缩水通道,所述口感滤芯设在所述连接壳内,所述口感滤芯与所述连接壳的内壁之间限定出所述流通通道。
- 根据权利要求4所述的复合滤芯,其特征在于,所述连接壳的内壁与所述口感滤芯之间设有凸块以使所述连接壳的内壁与所述口感滤芯间隔开,所述连接壳的内壁与所述口感滤芯之间的间隙构成所述流通通道。
- 根据权利要求4或5所述的复合滤芯,其特征在于,所述连接壳上形成有环形凸起,所述中心集水管的出水端配合在所述环形凸起内。
- 根据权利要求4-6中任一项所述的复合滤芯,其特征在于,还包括:第一定位件和第二定位件,所述第一定位件和所述第二定位件分别设在所述口感滤芯的轴向两端且与所述口感滤芯相连。
- 根据权利要求7所述的复合滤芯,其特征在于,所述口感滤芯呈管状,所述口感滤芯的内孔构成所述纯水通道,所述第一定位件包括第一定位本体和形成在所述第一定位本体上的第一限位凸起,所述第一定位本体封盖所述口感滤芯的邻近所述中心 集水管的一端,所述第一限位凸起配合在所述口感滤芯的内孔内,所述第二定位件包括第二定位本体和形成在所述第二定位本体上的第二限位凸起,所述第二定位本体设在所述口感滤芯的远离所述中心集水管的一端,所述第二限位凸起配合在所述口感滤芯的内孔内且所述第二限位凸起上形成有沿轴向贯通所述第二定位件的通水孔。
- 一种复合滤芯组件,其特征在于,包括:滤壳,所述滤壳上形成有原水进口、纯水出口和浓缩水出口;根据权利要求1-8中任一项所述的复合滤芯,所述复合滤芯设在所述滤壳内,所述原水进口与所述预处理滤芯的进水端连通,所述纯水出口与所述纯水通道连通,所述浓缩水出口与所述浓缩水通道连通。
- 一种净水系统,其特征在于,包括:根据权利要求9所述的复合滤芯组件。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17735369.5A EP3424886B1 (en) | 2017-03-07 | 2017-05-25 | Composite filter element, composite filter element assembly, and water purification system |
RU2017128093A RU2676282C1 (ru) | 2017-03-07 | 2017-05-25 | Картридж составного фильтра, узел картриджа составного фильтра и система очистки воды |
KR1020177023397A KR20180108410A (ko) | 2017-03-07 | 2017-05-25 | 복합 필터 소자, 복합 필터 소자 어셈블리 및 정수 시스템 |
US15/545,730 US20200038809A1 (en) | 2017-03-07 | 2017-05-25 | Composite filter cartridge, composite filter cartridge assembly and water purification system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720219850.XU CN206562355U (zh) | 2017-03-07 | 2017-03-07 | 复合滤芯、复合滤芯组件及净水系统 |
CN201710132572.9A CN108569787B (zh) | 2017-03-07 | 2017-03-07 | 复合滤芯、复合滤芯组件及净水系统 |
CN201720219850.X | 2017-03-07 | ||
CN201710132572.9 | 2017-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018161439A1 true WO2018161439A1 (zh) | 2018-09-13 |
Family
ID=61691602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2017/086002 WO2018161439A1 (zh) | 2017-03-07 | 2017-05-25 | 复合滤芯、复合滤芯组件及净水系统 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200038809A1 (zh) |
EP (1) | EP3424886B1 (zh) |
KR (1) | KR20180108410A (zh) |
RU (1) | RU2676282C1 (zh) |
WO (1) | WO2018161439A1 (zh) |
Cited By (2)
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CN110255744A (zh) * | 2019-08-02 | 2019-09-20 | 珠海格力电器股份有限公司 | 一种复合滤芯组件和净水系统 |
CN114159882A (zh) * | 2021-06-03 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | 复合滤芯的前置滤芯和具有其的复合滤芯 |
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CN111747555A (zh) * | 2020-08-06 | 2020-10-09 | 唯赛勃环保设备有限公司 | 一种模块化净水器过滤结构 |
US12268990B2 (en) * | 2020-12-07 | 2025-04-08 | James Benjamin Hanks | Reverse osmosis filter system |
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- 2017-05-25 WO PCT/CN2017/086002 patent/WO2018161439A1/zh active Application Filing
- 2017-05-25 KR KR1020177023397A patent/KR20180108410A/ko not_active Ceased
- 2017-05-25 US US15/545,730 patent/US20200038809A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
RU2676282C1 (ru) | 2018-12-27 |
EP3424886A4 (en) | 2019-01-09 |
EP3424886B1 (en) | 2023-01-18 |
EP3424886A1 (en) | 2019-01-09 |
KR20180108410A (ko) | 2018-10-04 |
US20200038809A1 (en) | 2020-02-06 |
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