WO2018161438A1 - 净水系统 - Google Patents

净水系统 Download PDF

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Publication number
WO2018161438A1
WO2018161438A1 PCT/CN2017/086001 CN2017086001W WO2018161438A1 WO 2018161438 A1 WO2018161438 A1 WO 2018161438A1 CN 2017086001 W CN2017086001 W CN 2017086001W WO 2018161438 A1 WO2018161438 A1 WO 2018161438A1
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WO
WIPO (PCT)
Prior art keywords
filter element
water
mouth
filter
pretreatment
Prior art date
Application number
PCT/CN2017/086001
Other languages
English (en)
French (fr)
Inventor
张兴致
何志锋
Original Assignee
佛山市顺德区美的饮水机制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201710132568.2A external-priority patent/CN108569727B/zh
Priority claimed from CN201720219849.7U external-priority patent/CN206562312U/zh
Application filed by 佛山市顺德区美的饮水机制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的饮水机制造有限公司
Priority to US15/542,934 priority Critical patent/US20190382297A1/en
Priority to EP17734221.9A priority patent/EP3594183B1/en
Priority to RU2017127735A priority patent/RU2667289C1/ru
Priority to KR1020177023398A priority patent/KR20180108411A/ko
Publication of WO2018161438A1 publication Critical patent/WO2018161438A1/zh

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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
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • 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
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/14—Cartridge filters of the throw-away type having more than one filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • 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
    • B01D61/08—Apparatus therefor
    • 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
    • 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
    • B01D63/10—Spiral-wound membrane modules
    • 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
    • B01D63/10—Spiral-wound membrane modules
    • B01D63/107—Specific properties of the central tube or the permeate channel
    • 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
    • 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
    • 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
    • B01D2313/00—Details relating to membrane modules or apparatus
    • B01D2313/13—Specific connectors
    • 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
    • B01D2317/00—Membrane module arrangements within a plant or an apparatus
    • B01D2317/02—Elements in series
    • B01D2317/025—Permeate series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/08—Construction of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D27/00—Cartridge filters of the throw-away type
    • B01D27/14—Cartridge filters of the throw-away type having more than one filtering element
    • B01D27/146—Cartridge filters of the throw-away type having more than one filtering element connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
    • 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

Definitions

  • the invention relates to the technical field of water treatment, in particular to a water purification system.
  • the booster pump installed in the water purification system is prone to blockage problems during long-term use, which affects the use and life of the water purification system. Therefore, improvement is needed.
  • the pretreatment filter element and the fine filter element of the filter assembly are sequentially disposed from the outside to the inside, and the filter assembly and the mouth-feel filter element are arranged in the up-and-down direction, thereby making the composite filter element integrally set up.
  • the water purification system further includes: a water inlet solenoid valve, the water inlet electromagnetic A valve is coupled between the booster pump and the pretreated water inlet.
  • a water inlet solenoid valve downstream of the pretreatment filter element, the risk of clogging of the solenoid valve can be reduced, the life of the water purification system can be further increased, and the reliability of the water purification system can be further improved.
  • the raw water inlet and the pretreated water inlet are located at an upper end of the filter housing, and the pretreated water outlet, the pure water outlet, and the concentrated water outlet are located at the The lower end of the filter housing.
  • the mouthfeel cartridge is located above the filter assembly. Thereby, the structure of the entire composite filter element is made reasonable and stable.
  • the first end cover and the second end cover are provided to facilitate the installation and assembly of the composite filter element, and the mouth filter element is disposed in the second end cover, which is beneficial to the design of the water channel in the composite filter element and enables the composite filter element to be
  • the waterway has a simple structure and can guarantee the quality of the water.
  • the water purification system further includes: a connection housing disposed in the end cover body and connected to the central water collection tube, the connection housing and the second end
  • the concentrated water passage is defined between the cover, the mouth 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.
  • an annular protrusion is formed on the connecting shell, and a water outlet end of the central water collecting tube is fitted in the ring Inside the bulge.
  • the water purification system 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 mouth-feeling filter element and The mouthpiece filter is connected.
  • the mouth-shaped filter element can be conveniently positioned in the connection housing.
  • 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.
  • 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.
  • Figure 4 is an enlarged view of a portion A in Figure 3.
  • Filter housing 11 raw water inlet 111, pure water outlet 112, concentrated water outlet 113, pretreated water outlet 114, pretreated water inlet 115,
  • 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, and a first receiving cavity 1243.
  • a second end cover 125 an end cap body 1251, a third flange portion 12511, a partition plate 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.
  • Concentrated water channel a1 circulation channel a2, pure water channel a3,
  • the water inlet pipe b1 The pure water pipe b2, the concentrated water pipe b3, and the pretreatment pipeline b4.
  • 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 water purification system 100 in accordance with an embodiment of the present invention will now be described with reference to Figs.
  • a water purification system 100 includes a composite filter element assembly 1, a booster pump 4, and a wastewater solenoid valve 7.
  • the composite filter element assembly 1 includes a filter housing 11 and a composite filter element 12 disposed in the filter housing 11.
  • the composite filter element 12 includes a filter assembly and a mouth-feel filter element 123 arranged in an up-and-down direction, and the filter assembly includes the outer and inner portions of the filter assembly.
  • Pre-processed filter element 121 and fine filter element 122 spaced apart from each other, taste filter element 123 and fine filter element 122 is connected and located downstream of the fine filter element 122.
  • the composite filter element 12 is integrally arranged to form a body arrangement, thereby being
  • the diameter of the small composite filter element 12 is favorable for the pressure resistance of the filter casing 11, the structure is simple, the volume is small, the miniaturization of the whole machine is facilitated, and the quality of the effluent is good.
  • the pretreatment filter element 121 may be a PAC (PP And C, PP cotton and activated carbon composite filter element 12) 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 mouth filter 123 can be an activated carbon layer.
  • the mouth filter 123 can be an activated carbon rod.
  • the mouth filter 123 can remove volatile organic compounds, residual residual chlorine, and can retain necessary minerals such as trace amounts of calcium, silicic acid, carbonate, etc.
  • the palate is sweet and soft.
  • the filter housing 11 has a raw water inlet 111, a pretreated water outlet 114, a pretreated water inlet 115, a pure water outlet 112, and a concentrated water outlet 113.
  • the pretreatment water outlet 114 is in communication with the outlet end of the pretreatment filter element 121, and the pretreatment water inlet 115 is in communication with the inlet end of the fine filter cartridge 122.
  • One end of the booster pump 4 is connected to the pretreatment water outlet 114 and the other end is connected to the pretreatment water inlet 115 for supplying water flowing out of the pretreatment water outlet 114 to the pretreatment water inlet 115.
  • the booster pump 4 is disposed downstream of the pretreatment filter element 121, so that the water entering the booster pump 4 is filtered through the pretreatment filter element 121, so that the risk of clogging of the booster pump 4 can be reduced, and the water purification system 100 can be increased.
  • the life is increased to improve the reliability of the water purification system 100.
  • spacing the pretreatment filter element 121 and the fine filter element 122 apart it is possible to prevent the water treated by the pretreatment filter element 121 from being pressurized by the booster pump 4 and directly entering the fine filter element 122 for filtration.
  • the wastewater solenoid valve 7 is connected to the concentrated water outlet 113, and the wastewater solenoid valve 7 is used to adjust the proportion of the wastewater to balance the working pressure of the water purification system 100.
  • raw water enters the filter housing 11 from the raw water inlet 111 on the filter housing 11 and is initially filtered through the pretreatment filter element 121 of the filter assembly.
  • the preliminary filtered water passing through the pretreatment filter element 121 flows out of the composite filter element 1 through the pretreatment water outlet 114 on the filter casing 11 and is pressurized by the booster pump 4, whereby the raw water can be made to enter the booster pump 4
  • Initial filtration reduces the risk of clogging of booster pump 4.
  • the pressurized water flows into the composite filter element assembly 1 through the pretreated water inlet 115 on the filter housing 11 and is finely filtered by the fine filter element 122.
  • the pure water formed by the filtration of the fine filter element 122 is filtered by the mouth filter element 123 to improve the mouthfeel, and finally the purified water which has improved the taste is discharged through the pure water outlet 112 on the filter casing 11 for drinking, and the concentrated water is produced through the filter case.
  • the concentrated water outlet 113 on the 11 exits the composite filter element assembly 1 and is discharged from the water purification system via the waste water solenoid valve 7. 100.
  • the pre-processing filter element 121 and the fine filter element 122 of the filter assembly are sequentially disposed from the outside to the inside, and the filter assembly and the mouth-feel filter element 123 are arranged in the up-and-down direction, thereby making the composite filter element 12 is integrally arranged to form a body arrangement, so that the diameter of the composite filter element 12 can be reduced, the pressure resistance of the filter housing 11 is favorable, the structure is simple, the volume is small, the miniaturization of the whole machine is facilitated, and the quality of the effluent is good, and at the same time it will increase.
  • the pressure pump 4 is disposed downstream of the pretreatment filter element 121, so that the water entering the booster pump 4 is filtered through the pretreatment filter element 121, thereby reducing the risk of clogging of the booster pump 4, increasing the life of the water purification system 100, and improving the purified water.
  • the reliability of system 100 is disposed downstream of the pretreatment filter element 121, so that the water entering the booster pump 4 is filtered through the pretreatment filter element 121, thereby reducing the risk of clogging of the booster pump 4, increasing the life of the water purification system 100, and improving the purified water. The reliability of system 100.
  • the water purification system 100 further includes an inlet water solenoid valve 3 connected between the booster pump 4 and the pretreatment water inlet 115.
  • an inlet water solenoid valve 3 connected between the booster pump 4 and the pretreatment water inlet 115.
  • the raw water inlet 111 and the pretreated water inlet 115 are located at the upper end of the filter housing 11, and the pretreated water outlet 114, the pure water outlet 112, and the concentrated water outlet 113 are located in the filter housing 11. Lower end.
  • the distribution of the raw water inlet 111, the pretreated water outlet 114, the pretreated water inlet 115, the pure water outlet 112, and the concentrated water outlet 113 on the filter casing 11 is made reasonable and contributes to the design of the water passage in the composite filter element assembly 1.
  • a 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 fine filter cartridge 122 includes a central header 1221 and a fine filter membrane 1222 wound around the central header 1221, the raw water inlet 111 and the pre-treatment cartridge 121.
  • the inlet end is connected.
  • the fine filter membrane 1222 of the fine filter cartridge 122 may be a reverse osmosis membrane or a nanofiltration membrane, and the fine filter cartridge 122 may intercept bacterial viruses, heavy metals, etc., and the fine filter cartridge 122 may be fabricated by a multi-film sheet rolling technique. The performance of the fine filter cartridge 122 can be improved.
  • the composite filter element 12 further includes a first end cap 124 and a second end cap 125.
  • the first end cap 124 is annular, and the first end cap 124 is disposed at one end of the filter assembly (for example, referring to the first end cap 124 in FIG. 3) It is disposed at the lower end of the filter assembly) and is connected to the pretreatment filter element 121.
  • the circumference of the first end cap 124 is formed with an upwardly extending first flange portion 1241 and located inside the first flange portion 1241 and in the radial direction of the first end cover 124.
  • a second flange portion 1242 is disposed, 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 received in the first receiving cavity 1243.
  • the inner side wall of the first flange portion 1241 and the outer side wall of the second flange portion 1242 are closely matched.
  • the second end cover 125 includes an end cap body 1251 that is annular and one end of the end cap body 1251 (refer to FIG. 3
  • the lower end of the middle end cover body 1251 extends in the axial direction (refer to the up and down direction in FIG. 3) and is a cylindrical partition 1252 which is provided at the other end of the filter assembly (for example, referring to the end in FIG. 3)
  • a cover body 1251 is provided at an upper end of the filter assembly) and is connected to the pretreatment filter element 121.
  • the partition plate 1252 is located between the pretreatment filter element 121 and the fine filter element 122 to space the pretreatment filter element 121 from the fine filter element 122, thereby conveniently separating the pretreatment filter element 121 from the fine filter element 122 to prevent pre-prevention.
  • the water treated by the treatment cartridge 121 is not pressurized by the booster pump 4 and directly enters the fine filter cartridge 122 for filtration.
  • the outer peripheral edge of the lower end of the end cap body 1251 is further formed with a downwardly extending third flange portion 12511.
  • the third flange portion 12511 and the partition plate 1252 form an annular second receiving cavity 1253, and the pretreatment filter core 121
  • the upper end is received in the second accommodating cavity 1253 and is closely matched with the inner side wall of the third burring portion 12511 and the outer side wall of the partition plate 1252, 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 end cap body 1251, the mouth-feel filter element 123 is connected to the central water collection tube 1221, and the mouth-feel filter element 123 is provided with a pure water passage a3 suitable for pure water to flow out, and the pure water passage a3 is connected with the pure water outlet 112, and the taste is sensed.
  • a concentrated water passage a1 and a flow passage a2 which are sequentially disposed from the outside to the inside and are spaced apart from each other are defined, and the circulation passage a2 communicates with the center water collection tube 1221, and the concentrated water outlet 113 and the concentrated water passage a1 Connected.
  • first end cover 124 and the second end cover 125 are provided to facilitate the installation and assembly of the composite filter element 12, and the mouth filter element 123 is disposed in the second end cover 125, which is beneficial to the water path in the composite filter element 12.
  • the design and the water path structure in the composite filter element 12 are simple, and the quality of the water can be ensured.
  • the raw water is firstly filtered by the pretreatment filter element 121, and the water after the preliminary filtration through the pretreatment filter element 121 passes through the filter casing 11
  • the upper pretreated water outlet 114 flows out of the composite filter element assembly 1 and is pressurized by the booster pump 4.
  • the pressurized water flows into the composite filter element assembly 1 through the pretreated water inlet 115 on the filter housing 11 and is finely filtered by the fine filter element 122.
  • the pure water formed by the filtration of the fine filter element 122 is collected by the central water collection tube 1221 of the fine filter element 122, and the pure water in the center water collection tube 1221 is filtered through the flow-through filter element 123 of the flow channel a2 to improve the taste and improve the taste.
  • the pure water flows out through the pure water passage a3 on the mouth filter cartridge 123 and the pure water outlet 112 on the filter casing 11 for drinking.
  • the produced concentrated water is discharged from the water purification system 100 through the concentrated water passage a1 and the concentrated water outlet 113 on the filter casing 11.
  • the water purification system 100 further includes: a connecting shell 126 disposed in the end cap body 1251 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 connecting shell 126 disposed in the end cap body 1251 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 between the inner wall of the connecting shell 126 and the mouth filter 123.
  • the gap constitutes the flow passage a2.
  • 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 is 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 protrusion.
  • 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 center water collecting tube 1221, thereby ensuring the connection between the connecting housing 126 and the central water collecting tube 1221.
  • the sealing property of the connection prevents the concentrated water in the concentrated water passage a1 from entering the connecting casing 126.
  • the water purification system 100 further includes: a first positioning member 127 and a second positioning member 128, wherein the first positioning member 127 and the second positioning member 128 are respectively disposed in the axial direction of the mouth filter 123 Both ends are connected to the mouth filter element 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. Referring to the lower end of the mouth filter element 123 in FIG.
  • the pure water passage a3 in the mouth filter element 123 is separated from the center water collection tube 1221, and the water in the center water collection tube 1221 is prevented from passing through the mouth-feeling 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 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 mouth-feeling 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, so that pure water in the pure water passage a3 can flow out through the water passing hole 1284 on the second positioning member 128. For drinking.
  • 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 water purification system 100 in accordance with an embodiment of the present invention will now be described with reference to Figures 1-4.
  • the water purification system 100 includes the above-described composite filter element assembly 1, booster pump 4, and waste water solenoid valve 7. Further, the water purification system 100 further includes an inlet water pipe b1, a pure water pipe b2, a concentrated water pipe b3, a pretreatment pipe b4, a water inlet solenoid valve 3, a check valve 5, a high pressure switch 6, and a faucet 8.
  • the composite filter element assembly 1 includes the filter housing 11 and the composite filter element 12, and the composite filter element 12 includes the filter assembly, the first end cover 124, the second end cover 125, the mouth filter element 123, the connection housing 126, and the first positioning member. 127 and second positioning member 128. Further, the filter assembly includes the above-mentioned pretreatment filter element 121 and the fine filter element 122.
  • the first end cap 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 at the filter.
  • the top end of the assembly 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-shaped filter element 123 is disposed in the connecting case 126, and the first positioning member 127 and the second positioning member 128 are respectively disposed at the lower end and the upper end of the mouth-feeling 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 of the fifth flange portion 1272 is spaced apart from the inner peripheral wall of the connecting shell 126. At this time, the first positioning member 127 and the connecting shell 126 are connected.
  • the gap between the inner walls and the gap between the outer peripheral wall of the mouth-feeling filter element 123 and the inner wall of the connecting case 126 constitute 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.
  • the water inlet pipe b1 is connected to the raw water inlet 111 of the filter casing 11, and one end of the pretreatment pipeline b4 and the pretreatment outlet The other end is connected to the pretreatment inlet, and the booster pump 4 and the inlet solenoid valve 3 are connected in series in the pretreatment line b4.
  • 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 8 are sequentially connected in series in the pure water pipe b2 in the direction of the water flow, and the check valve 5 is in pure
  • the water outlet 112 is unidirectionally turned in the direction of the faucet 8.
  • 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 detect the faucet according to the water pressure in the pure water pipe b2. 8 is open or closed.
  • 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 line and flows into the composite filter element assembly 1 from the raw water inlet 111 on the filter housing 11.
  • the raw water flowing into the composite filter element assembly 1 is firstly filtered by the pretreatment filter element 121, and the water after preliminary filtration by the pretreatment filter element 121 flows out of the composite filter element assembly 1 through the pretreatment water outlet 114 on the filter casing 11 and flows into the pretreatment.
  • the water flowing into the pretreatment line b4 is pressurized by the booster pump 4, flows into the composite filter element 1 through the pretreated water inlet 115 on the filter casing 11, and is finely filtered by the fine filter element 122. .
  • the pure water formed by the filtration of the fine filter element 122 is collected by the central water collection tube 1221 of the fine filter element 122, and the pure water in the center water collection tube 1221 is filtered through the flow-through filter element 123 of the flow channel a2 to improve the taste and improve the taste.
  • the pure water flows out through the pure water passage a3 on the mouth filter 123 and the pure water outlet 112 on the filter casing 11 and flows into the pure water pipe b2, and finally flows out through the faucet 8 for drinking.
  • the produced concentrated water flows into the concentrated water line b3 through the concentrated water passage a1 and the concentrated water outlet 113 on the filter casing 11, and finally exits the water purification system 100 through the waste water solenoid valve 7.

Abstract

一种净水系统（100），包括：复合滤芯组件（1）、增压泵（4）和废水电磁阀（7）。复合滤芯组件（1）包括滤壳（11）和复合滤芯（12），滤壳（11）具有原水进口（111）、预处理水出口（114）、预处理水进口（115）、纯水出口（112）和浓缩水出口（113），复合滤芯（12）包括沿上下方向排布的过滤组件和口感滤芯（123），预处理水出口（114）与过滤组件的预处理滤芯（121）的出水端及增压泵（4）连通，预处理水进口（115）与过滤组件的精细过滤滤芯（122）的进水端及增压泵（4）连通。

Description

净水系统 技术领域
本发明涉及水处理技术领域，尤其是涉及一种净水系统。
背景技术
相关技术中，净水系统中目前常用的复合滤芯有碳棒+超滤滤芯、PP+活性炭复合滤芯、颗粒活性炭+超滤等，而由于密封耐压和性能方面的原因，关于纳滤膜或者反渗透膜的复合滤芯很少。仅几个关于反渗透膜的复合滤芯，其中用于改善口感的后置活性炭滤芯依然放置在一体化滤芯的外面，不利于整机尺寸的小型化。
另外，净水系统中设置的增压泵在长期的使用过程中易出现堵塞问题，影响了净水系统的使用和寿命。因此，需要改进。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种净水系统，所述净水系统结构简单、尺寸小、可靠性高、使用寿命长。
根据本发明实施例的净水系统，包括：复合滤芯组件，所述复合滤芯组件包括滤壳和设在所述滤壳内的复合滤芯，所述滤壳具有原水进口、预处理水出口、预处理水进口、纯水出口和浓缩水出口，所述复合滤芯包括沿上下方向排布的过滤组件和口感滤芯，所述过滤组件包括由外向内依次设置且相互间隔开的预处理滤芯和精细过滤滤芯，所述口感滤芯与所述精细过滤滤芯相连且位于所述精细过滤滤芯的下游，所述预处理水出口与所述预处理滤芯的出水端连通，所述预处理水进口与所述精细过滤滤芯的进水端连通；增压泵，所述增压泵的一端与所述预处理水出口相连且另一端与所述预处理水进口相连，所述增压泵用于将从所述预处理水出口流出的水输送至所述预处理水进口；废水电磁阀，所述废水电磁阀与所述浓缩水出口相连。
根据本发明实施例的净水系统，通过将过滤组件的预处理滤芯和精细过滤滤芯由外向内依次设置，并将过滤组件与口感滤芯沿上下方向排布，由此使得复合滤芯整体设置成立体排布，从而可以减小复合滤芯的直径，对滤壳耐压有利，结构简单、体积小，有利于整机的小型化，并且出水的品质好，并且同时将增压泵设在预处理滤芯的下游，使得进入增压泵的水经过预处理滤芯进行过滤，从而可以减少增压泵的堵塞风险，增加净水系统的寿命，提高净水系统的可靠性。
根据本发明的一些可选实施例，所述净水系统还包括：进水电磁阀，所述进水电磁 阀连接在所述增压泵和所述预处理水进口之间。由此，通过将进水电磁阀设置在预处理滤芯的下游，可以减少电磁阀的堵塞风险，进一步地增加净水系统的寿命，并进一步地提高净水系统的可靠性。
根据本发明的一些可选实施例，所述原水进口和所述预处理水进口位于所述滤壳的上端，所述预处理水出口、所述纯水出口和所述浓缩水出口位于所述滤壳的下端。由此，使得原水进口、预处理水出口、预处理水进口、纯水出口和浓缩水出口在滤壳上的分布合理且有利于复合滤芯组件内水路的设计。
根据本发明的一些可选实施例，所述口感滤芯位于所述过滤组件的上方。由此，使得整个复合滤芯的结构合理、稳定。
根据本发明的一些可选实施例，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，所述原水进口与所述预处理滤芯的进水端连通；所述复合滤芯还包括：第一端盖，所述第一端盖呈环形，所述第一端盖设在所述过滤组件的一端且与所述预处理滤芯相连；第二端盖，所述第二端盖包括呈环形的端盖本体和从所述端盖本体的一端沿轴向延伸且呈筒形的隔板，所述端盖本体设在所述过滤组件的另一端且与所述预处理滤芯相连，所述隔板位于所述预处理滤芯与所述精细过滤滤芯之间以将所述预处理滤芯与所述精细过滤滤芯间隔开，所述口感滤芯设在所述端盖本体内，所述口感滤芯与所述中心集水管相连且所述口感滤芯上设有适于纯水流出的纯水通道，所述纯水通道与所述纯水出口连通，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，所述浓缩水出口与浓缩水通道连通。
由此，通过设置的第一端盖和第二端盖，方便了复合滤芯的安装和装配，并将口感滤芯设在第二端盖内，有利于复合滤芯内水路的设计且使得复合滤芯内的水路结构简单，同时可以保证出水品质。
根据本发明进一步的实施例，所述净水系统还包括：连接壳，所述连接壳设在所述端盖本体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。由此，通过设置的连接壳，方便了口感滤芯的装配，并且可以方便地将口感滤芯与过滤组件隔开。
可选地，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。由此，通过设置的凸块，便于流通通道的形成。
可选地，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。由此，方便了口感滤芯与精细过滤滤芯的连接，且连接快捷、可靠。
可选地，所述净水系统还包括：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。由此，通过设置的第一定位件和第二定位件，可以方便将口感滤芯定位在连接壳内。
进一步地，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。
由此，通过将口感滤芯设置呈管状，方便口感滤芯上的纯水通道的形成，并且通过第一定位件上的第一限位凸起和第二定位件上的第二限位凸起分别与口感滤芯的内孔的配合，使得口感滤芯的安装、定位更加方便、快捷，且使得复合滤芯内的流道结构简单。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本发明实施例的净水系统的示意图；
图2是根据本发明实施例的复合滤芯组件的示意图；
图3是根据本发明实施例的复合滤芯的示意图；
图4是图3中A处的放大图。
附图标记：
净水系统100，
复合滤芯组件1，
滤壳11，原水进口111，纯水出口112，浓缩水出口113，预处理水出口114，预处理水进口115，
复合滤芯12，预处理滤芯121，精细过滤滤芯122，中心集水管1221，精细过滤膜1222，口感滤芯123，
第一端盖124，第一翻边部1241，第二翻边部1242，第一容纳腔1243，
第二端盖125，端盖本体1251，第三翻边部12511，隔板1252，第二容纳腔1253，
连接壳126，凸块1261，环形凸起1262，通孔1263，密封件1264，
第一定位件127，第一定位本体1271，第五翻边部1272，第一限位凸起1273，
第二定位件128，第二定位本体1281，第六翻边部1282，第二限位凸起1283，通水孔1284，
进水电磁阀3，增压泵4，单向阀5，高压开关6，废水电磁阀7，水龙头8，
浓缩水通道a1，流通通道a2，纯水通道a3，
进水管路b1，纯水管路b2，浓缩水管路b3，预处理管路b4。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面参考图1-图4描述根据本发明实施例的净水系统100。
如图1-图4所示，根据本发明实施例的净水系统100，包括：复合滤芯组件1、增压泵4和废水电磁阀7。
具体而言，复合滤芯组件1包括滤壳11和设在滤壳11内的复合滤芯12，复合滤芯12包括沿上下方向排布的过滤组件和口感滤芯123，过滤组件包括由外向内依次设置且相互间隔开的预处理滤芯121和精细过滤滤芯122，口感滤芯123与精细过滤滤芯 122相连且位于精细过滤滤芯122的下游。通过将过滤组件的预处理滤芯121和精细过滤滤芯122由外向内依次设置，并将过滤组件与口感滤芯123沿上下方向排布，由此使得复合滤芯12整体设置成立体排布，从而可以减小复合滤芯12的直径，对滤壳11耐压有利，结构简单、体积小，有利于整机的小型化，并且出水的品质好。
其中，预处理滤芯121可以为PAC(PP And C，PP棉和活性炭复合滤芯12)预处理滤芯121，例如预处理滤芯121可以包括沿复合滤芯12的径向由外至内依次分布的PP无纺布卷绕层(PP无纺布卷绕层的精度可以设置为5um)和活性炭纤维卷绕层，预处理滤芯121可以有效去除铁锈、泥沙、吸附水中的异色、异味、余氯及部分有机物，确保进入精细过滤滤芯122的水质，延长精细过滤滤芯122的寿命。口感滤芯123可以为活性炭层，例如口感滤芯123可以为活性炭棒，口感滤芯123可以去除挥发性有机物、残余余氯，并可以保留必须的矿物质如微量钙、硅酸、碳酸根等，可以使口感甘甜、柔和。
滤壳11具有原水进口111、预处理水出口114、预处理水进口115、纯水出口112和浓缩水出口113。预处理水出口114与预处理滤芯121的出水端连通，预处理水进口115与精细过滤滤芯122的进水端连通。增压泵4的一端与预处理水出口114相连且另一端与预处理水进口115相连，增压泵4用于将从预处理水出口114流出的水输送至预处理水进口115。由此，将增压泵4设在预处理滤芯121的下游，使得进入增压泵4的水经过预处理滤芯121进行过滤，从而可以减少增压泵4的堵塞风险，增加净水系统100的寿命，提高净水系统100的可靠性。并且，通过将预处理滤芯121和精细过滤滤芯122间隔开，可以防止经预处理滤芯121处理后的水未通过增压泵4增压而直接进入精细过滤滤芯122进行过滤。
废水电磁阀7与浓缩水出口113相连，废水电磁阀7用于调节废水比例，以平衡净水系统100的工作压力。
下面参照图1-图4简要说明净水系统100的工作过程。
参照图1-图4，原水从滤壳11上的原水进口111进入滤壳11内，并通过过滤组件的预处理滤芯121进行初步过滤。经预处理滤芯121进行初步过滤后的水经滤壳11上的预处理水出口114流出复合滤芯组件1并通过增压泵4进行增压，由此，可以使得原水进入增压泵4之前进行初步过滤，降低增压泵4堵塞风险。增压后的水通过滤壳11上的预处理水进口115流入复合滤芯组件1内，并通过精细过滤滤芯122进行精细过滤。经精细过滤滤芯122过滤后形成的纯水通过口感滤芯123进行过滤并改善口感，最后经过改善口感的纯水通过滤壳11上的纯水出口112流出以饮用，而产生的浓缩水经滤壳11上的浓缩水出口113流出复合滤芯组件1并经废水电磁阀7排出净水系统 100。
根据本发明实施例的净水系统100，通过将过滤组件的预处理滤芯121和精细过滤滤芯122由外向内依次设置，并将过滤组件与口感滤芯123沿上下方向排布，由此使得复合滤芯12整体设置成立体排布，从而可以减小复合滤芯12的直径，对滤壳11耐压有利，结构简单、体积小，有利于整机的小型化，并且出水的品质好，并且同时将增压泵4设在预处理滤芯121的下游，使得进入增压泵4的水经过预处理滤芯121进行过滤，从而可以减少增压泵4的堵塞风险，增加净水系统100的寿命，提高净水系统100的可靠性。
根据本发明的一些可选实施例，参照图1，所述净水系统100还包括：进水电磁阀3，进水电磁阀3连接在增压泵4和预处理水进口115之间。由此，通过将进水电磁阀3设置在预处理滤芯121的下游，可以减少进水电磁阀3的堵塞风险，进一步地增加净水系统100的寿命，并进一步地提高净水系统100的可靠性。
根据本发明的一些可选实施例，参照图2，原水进口111和预处理水进口115位于滤壳11的上端，预处理水出口114、纯水出口112和浓缩水出口113位于滤壳11的下端。由此，使得原水进口111、预处理水出口114、预处理水进口115、纯水出口112和浓缩水出口113在滤壳11上的分布合理且有利于复合滤芯组件1内水路的设计。
根据本发明的一些可选实施例，参照图3，口感滤芯123位于所述过滤组件的上方。由此，通过将口感滤芯123设在过滤组件的上方，使得整个复合滤芯12的结构合理、稳定，同时方便复合滤芯12内部的流路设计。
根据本发明的一些可选实施例，参照图3和图4，精细过滤滤芯122包括中心集水管1221和卷绕在中心集水管1221上的精细过滤膜1222，原水进口111与预处理滤芯121的进水端连通。其中，精细过滤滤芯122的精细过滤膜1222可以为反渗透膜或纳滤膜，精细过滤滤芯122可以拦截细菌病毒、重金属等，精细过滤滤芯122可以采用多膜页卷制技术制成，由此可以提高精细过滤滤芯122的性能。
复合滤芯12还包括：第一端盖124和第二端盖125，第一端盖124呈环形，第一端盖124设在过滤组件的一端(例如，参照图3中的第一端盖124设在过滤组件的下端)且与预处理滤芯121相连。例如，在图3的示例中，第一端盖124的周沿形成有向上延伸的第一翻边部1241以及位于第一翻边部1241的内侧且在第一端盖124的径向方向上间隔开设置的第二翻边部1242，第一翻边部1241和第二翻边部1242之间形成环形的第一容纳腔1243，预处理滤芯121的下端容纳在上述第一容纳腔1243内且与第一翻边部1241的内侧壁和第二翻边部1242的外侧壁紧密配合。
第二端盖125包括呈环形的端盖本体1251和从端盖本体1251的一端(参照图3 中端盖本体1251的下端)沿轴向(参照图3中的上下方向)延伸且呈筒形的隔板1252，端盖本体1251设在过滤组件的另一端(例如，参照图3中的端盖本体1251设在过滤组件的上端)且与预处理滤芯121相连。隔板1252位于预处理滤芯121与精细过滤滤芯122之间以将预处理滤芯121与精细过滤滤芯122间隔开，由此可以方便地将预处理滤芯121与精细过滤滤芯122隔开，防止经预处理滤芯121处理后的水未通过增压泵4增压而直接进入精细过滤滤芯122进行过滤。端盖本体1251的下端的外周沿还形成有向下延伸的第三翻边部12511，第三翻边部12511和上述隔板1252之间形成环形的第二容纳腔1253，预处理滤芯121的上端容纳在上述第二容纳腔1253内且与第三翻边部12511的内侧壁和隔板1252的外侧壁紧密配合，从而可以使第二端盖125与预处理滤芯121稳定、可靠地连接。
口感滤芯123设在端盖本体1251内，口感滤芯123与中心集水管1221相连且口感滤芯123上设有适于纯水流出的纯水通道a3，纯水通道a3与纯水出口112连通，口感滤芯123与第二端盖125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a1和流通通道a2，流通通道a2与中心集水管1221连通，浓缩水出口113与浓缩水通道a1连通。
由此，通过设置的第一端盖124和第二端盖125，方便了复合滤芯12的安装和装配，并将口感滤芯123设在第二端盖125内，有利于复合滤芯12内水路的设计且使得复合滤芯12内的水路结构简单，同时可以保证出水品质。
下面参照图1-图4简要说明上述复合滤芯12的过滤过程。
参照图3(图中的箭头方向为水流方向)并结合图1、图2和图4，原水先通过预处理滤芯121进行初步过滤，经预处理滤芯121进行初步过滤后的水经滤壳11上的预处理水出口114流出复合滤芯组件1并通过增压泵4进行增压。增压后的水通过滤壳11上的预处理水进口115流入复合滤芯组件1内，并通过精细过滤滤芯122进行精细过滤。经精细过滤滤芯122过滤后形成的纯水通过精细过滤滤芯122的中心集水管1221进行收集，中心集水管1221内的纯水通过上述流通通道a2流入口感滤芯123进行过滤并改善口感，经改善口感的纯水通过口感滤芯123上的纯水通道a3及滤壳11上的纯水出口112流出以饮用。而产生的浓缩水经浓缩水通道a1及滤壳11上的浓缩水出口113排出净水系统100。
根据本发明进一步的实施例，参照图3和图4，所述净水系统100还包括：连接壳126，连接壳126设在端盖本体1251内且与中心集水管1221相连，连接壳126与第二端盖125之间限定出浓缩水通道a1，口感滤芯123设在连接壳126内，口感滤芯123与连接壳126的内壁之间限定出流通通道a2。由此，通过设置的连接壳126，方便了 口感滤芯123的装配，并且可以方便地将口感滤芯123与过滤组件隔开。
可选地，参照图4，连接壳126的内壁与口感滤芯123之间设有凸块1261以使连接壳126的内壁与口感滤芯123间隔开，连接壳126的内壁与口感滤芯123之间的间隙构成流通通道a2。由此，通过设置的凸块1261，使得连接壳126的内壁与口感滤芯123间隔开，以便于在口感滤芯123与连接壳126的内壁之间形成上述的流通通道a2，从而使得从精细过滤滤芯122的中心集水管1221内出来的水顺利流入口感滤芯123进行过滤。可选地，上述凸块1261可以形成在连接壳126的内壁上，凸块1261可以为一个且形成为环形，凸块1261也可以杆状且可以包括间隔分布的多个。
可选地，参照图3和图4，连接壳126上形成有环形凸起1262，中心集水管1221的出水端(参照图3和图4中的中心集水管1221的上端)配合在环形凸起1262内。由此，通过中心集水管1221配合在连接壳126的环形凸起1262内，方便了口感滤芯123与精细过滤滤芯122的连接，且连接快捷、可靠，并且使得中心集水管1221内的纯水顺利流入连接壳126内。
进一步地，参照图4，上述环形凸起1262的内周壁与中心集水管1221的外周壁之间可以设置密封件1264(例如密封圈)，由此可以保证连接壳126与中心集水管1221之间连接的密封性，防止浓缩水通道a1内的浓缩水进入连接壳126内。
可选地，参照图3和图4，净水系统100还包括：第一定位件127和第二定位件128，第一定位件127和第二定位件128分别设在口感滤芯123的轴向两端且与口感滤芯123相连。由此，通过设置的第一定位件127和第二定位件128，可以对口感滤芯123在轴向(参照图3中的上下方向)上进行限位，从而可以方便地将口感滤芯123定位在连接壳126内，使得复合滤芯12的结构稳定可靠。
进一步地，参照图3和图4，口感滤芯123呈管状，口感滤芯123的轴向两端均可以敞开，由此使得口感滤芯123的结构简单、易于加工成型，口感滤芯123的内孔构成纯水通道a3，从而无需另外在口感滤芯123上设置纯水通道a3。第一定位件127包括第一定位本体1271和形成在第一定位本体1271上的第一限位凸起1273，第一定位本体1271封盖所述口感滤芯123的邻近中心集水管1221的一端(参照图3中口感滤芯123的下端)，以使口感滤芯123内的纯水通道a3与中心集水管1221隔开，防止中心集水管1221内的水未经过口感滤芯123而直接进入纯水通道a3内，第一限位凸起1273配合在口感滤芯123的内孔内。
第二定位件128包括第二定位本体1281和形成在第二定位本体1281上的第二限位凸起1283，第二定位本体1281设在口感滤芯123的远离中心集水管1221的一端(参照图3中口感滤芯123的上端)，第二限位凸起1283配合在口感滤芯123的内孔内且 第二限位凸起1283上形成有沿轴向贯通第二定位件128的通水孔1284，由此纯水通道a3内的纯水可以通过第二定位件128上的通水孔1284流出以供饮用。
由此，通过将口感滤芯123设置呈管状，方便口感滤芯123上的纯水通道a3的形成，并且通过第一定位件127上的第一限位凸起1273和第二定位件128上的第二限位凸起1283分别与口感滤芯123的内孔的配合，使得口感滤芯123的安装、定位更加方便、快捷，且使得复合滤芯12内的流道结构简单。
下面参照图1-图4描述根据本发明一个具体实施例的净水系统100。
参照图1-图4，在本实施例中，净水系统100包括上述的复合滤芯组件1、增压泵4、废水电磁阀7。进一步地，净水系统100还包括进水管路b1、纯水管路b2、浓缩水管路b3、预处理管路b4、进水电磁阀3、单向阀5、高压开关6和水龙头8。
其中，复合滤芯组件1包括上述的滤壳11和复合滤芯12，复合滤芯12包括上述的过滤组件、第一端盖124、第二端盖125、口感滤芯123、连接壳126、第一定位件127和第二定位件128。进一步地，过滤组件包括上述预处理滤芯121和精细过滤滤芯122，第一端盖124设在过滤组件的底部且与预处理滤芯121和精细过滤滤芯122均相连，第二端盖125设在过滤组件的顶端且与预处理滤芯121相连。连接壳126设在第二端盖125内，连接壳126的上端敞开且其下端具有连通其内腔的通孔1263，该通孔1263的周沿形成有向下延伸的环形凸起1262，中心集水管1221的上端配合在环形凸起1262内。
口感滤芯123设在连接壳126内，第一定位件127和第二定位件128分别设在口感滤芯123的下端和上端。连接壳126的底壁上形成有上述凸块1261，第一定位件127位于连接壳126内且第一定位件127的第一定位本体1271支撑在上述凸块1261上以使第一定位本体1271与连接壳126的底壁间隔开，从而使得中心集水管1221内的纯水可以顺利流入连接壳126的流通通道a2内。
第一定位本体1271呈圆形，第一定位本体1271的周沿形成有向上延伸的第五翻边部1272，口感滤芯123的下端与第五翻边部1272的内周壁止抵，从而可以进一步地增加第一定位件127与口感滤芯123配合的稳定性，第五翻边部1272第五翻边部1272与连接壳126的内周壁间隔开，此时第一定位件127与连接壳126的内壁之间的间隙及口感滤芯123的外周壁与连接壳126的内壁之间的间隙共同构成上述流通通道a2。第二定位本体1281呈圆形，第二定位本体1281的周沿形成有向下延伸的第六翻边部1282，口感滤芯123的上端与第六翻边部1282的内周壁止抵，从而可以进一步地增加第二定位件128与口感滤芯123配合的稳定性。
进水管路b1与滤壳11的原水进口111相连，预处理管路b4的一端与预处理出口 相连且另一端与预处理进口相连，水流方向上增压泵4和进水电磁阀3串接在预处理管路b4上。纯水管路b2与滤壳11上的纯水出口112相连，在水流方向上单向阀5、高压开关6和水龙头8依次串接在纯水管路b2上，单向阀5在从纯水出口112至水龙头8的方向上单向导通，单向阀5用于防止纯水管路b2内的水倒流至复合滤芯12内，高压开关6可以根据纯水管路b2内水压检测水龙头8是处于打开状态还是关闭状态。
由此，在水龙头8打开时，净水系统100开启工作，进水电磁阀3打开，高压开关6闭合，原水进入原水管路中并从滤壳11上的原水进口111流入复合滤芯组件1内，流入复合滤芯组件1内的原水先通过预处理滤芯121进行初步过滤，经预处理滤芯121进行初步过滤后的水经滤壳11上的预处理水出口114流出复合滤芯组件1并流入预处理管路b4内，流入预处理管路b4内的水通过增压泵4进行增压后通过滤壳11上的预处理水进口115流入复合滤芯组件1内，并通过精细过滤滤芯122进行精细过滤。
经精细过滤滤芯122过滤后形成的纯水通过精细过滤滤芯122的中心集水管1221进行收集，中心集水管1221内的纯水通过上述流通通道a2流入口感滤芯123进行过滤并改善口感，经改善口感的纯水通过口感滤芯123上的纯水通道a3及滤壳11上的纯水出口112流出并流入纯水管路b2内，最后通过水龙头8流出饮用。而产生的浓缩水经浓缩水通道a1及滤壳11上的浓缩水出口113流入浓缩水管路b3，最后经废水电磁阀7后排出净水系统100。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种净水系统，其特征在于，包括：
    复合滤芯组件，所述复合滤芯组件包括滤壳和设在所述滤壳内的复合滤芯，所述滤壳具有原水进口、预处理水出口、预处理水进口、纯水出口和浓缩水出口，所述复合滤芯包括沿上下方向排布的过滤组件和口感滤芯，所述过滤组件包括由外向内依次设置且相互间隔开的预处理滤芯和精细过滤滤芯，所述口感滤芯与所述精细过滤滤芯相连且位于所述精细过滤滤芯的下游，所述预处理水出口与所述预处理滤芯的出水端连通，所述预处理水进口与所述精细过滤滤芯的进水端连通；
    增压泵，所述增压泵的一端与所述预处理水出口相连且另一端与所述预处理水进口相连，所述增压泵用于将从所述预处理水出口流出的水输送至所述预处理水进口；
    废水电磁阀，所述废水电磁阀与所述浓缩水出口相连。
  2. 根据权利要求1所述的净水系统，其特征在于，还包括：进水电磁阀，所述进水电磁阀连接在所述增压泵和所述预处理水进口之间。
  3. 根据权利要求1或2所述的净水系统，其特征在于，所述原水进口和所述预处理水进口位于所述滤壳的上端，所述预处理水出口、所述纯水出口和所述浓缩水出口位于所述滤壳的下端。
  4. 根据权利要求1-3中任一项所述的净水系统，其特征在于，所述口感滤芯位于所述过滤组件的上方。
  5. 根据权利要求1-4中任一项所述的净水系统，其特征在于，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，所述原水进口与所述预处理滤芯的进水端连通；
    所述复合滤芯还包括：
    第一端盖，所述第一端盖呈环形，所述第一端盖设在所述过滤组件的一端且与所述预处理滤芯相连；
    第二端盖，所述第二端盖包括呈环形的端盖本体和从所述端盖本体的一端沿轴向延伸且呈筒形的隔板，所述端盖本体设在所述过滤组件的另一端且与所述预处理滤芯相连，所述隔板位于所述预处理滤芯与所述精细过滤滤芯之间以将所述预处理滤芯与所述精细过滤滤芯间隔开，
    所述口感滤芯设在所述端盖本体内，所述口感滤芯与所述中心集水管相连且所述口感滤芯上设有适于纯水流出的纯水通道，所述纯水通道与所述纯水出口连通，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，所述浓缩水出口与浓缩水通道连通。
  6. 根据权利要求5所述的净水系统，其特征在于，还包括：连接壳，所述连接壳设在所述端盖本体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。
  7. 根据权利要求6所述的净水系统，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。
  8. 根据权利要求6或7所述的净水系统，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。
  9. 根据权利要求6-8中任一项所述的净水系统，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。
  10. 根据权利要求9所述的净水系统，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。
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