CN110304750B - Composite filter element assembly and water purification system - Google Patents
Composite filter element assembly and water purification system Download PDFInfo
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- CN110304750B CN110304750B CN201910711365.8A CN201910711365A CN110304750B CN 110304750 B CN110304750 B CN 110304750B CN 201910711365 A CN201910711365 A CN 201910711365A CN 110304750 B CN110304750 B CN 110304750B
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- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 321
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000000746 purification Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 22
- 238000002203 pretreatment Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 5
- 239000012267 brine Substances 0.000 claims description 4
- 238000001471 micro-filtration Methods 0.000 claims description 4
- 238000001728 nano-filtration Methods 0.000 claims description 4
- 238000001223 reverse osmosis Methods 0.000 claims description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 4
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims 5
- 239000007921 spray Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- 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
- C02F2201/004—Seals, connections
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/02—Location of water treatment or water treatment device as part of a bottle
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a composite filter element assembly and a water purification system, wherein the composite filter element assembly comprises a bottle body, a first dividing piece is arranged in the bottle body and used for dividing an inner cavity of the bottle body into a pretreatment cavity and a post-treatment cavity in the axial direction, at least two stages of filter elements are arranged in the pretreatment cavity, a fine filter element and a post-treatment function filter element are arranged in the post-treatment cavity, and pretreated water obtained through filter element filtration in the pretreatment cavity can enter the post-treatment cavity and sequentially pass through the fine filter element and the post-treatment function filter element for filtration. At least four stages of filter elements are integrated in the bottle body, and the filter elements for pretreatment and the filter elements for post-treatment are respectively arranged in the pretreatment cavity and the post-treatment cavity which are formed by the segmentation, so that the water production quality is improved, and the whole volume is reduced.
Description
Technical Field
The invention relates to the field of water purification, in particular to a composite filter element assembly and a water purification system.
Background
Along with the improvement of the living standard of people, the water quality requirement on drinking water is higher and higher. For this purpose, a multistage filter element is generally used for treating raw water to meet the high quality requirement. The traditional mode is to connect multistage filter cores in series in the water purification system, and one filter core is correspondingly arranged in one bottle, so that the whole system has huge structure, high requirement on installation space and high cost. Therefore, it is important to reduce the size of the whole machine structure under the condition of guaranteeing the water quality.
Disclosure of Invention
Based on this, it is necessary to provide a composite filter element assembly and a water purification system to reduce the overall structural size while guaranteeing water quality.
The utility model provides a compound filter core subassembly, includes the bottle, be equipped with first segmentation piece in the bottle, be used for with the inner chamber of bottle is cut apart into pretreatment cavity and post-treatment cavity in the axial, be equipped with at least two-stage filter core in the pretreatment cavity, be equipped with fine filtration filter core and post-treatment cavity, through the pretreatment water that the filter core filters in the pretreatment cavity obtained can get into in the post-treatment cavity is passed through in proper order fine filtration filter core and post-treatment function filter core filters.
The above-mentioned scheme provides a compound filter element assembly, through will the inner chamber of bottle is cut apart into pretreatment cavity and aftertreatment cavity in the axial, then set up at least two-stage filter core in the pretreatment cavity, carry out the preliminary treatment, with fine filtration filter core and post-functional filter core setting in the aftertreatment cavity, the process filter core filters the pretreatment water that obtains in the pretreatment cavity then gets into in the aftertreatment cavity, the process fine filtration filter core and further filtration of post-functional filter core obtain the pure water. Therefore, at least four stages of filter elements are integrated in the bottle body, the filter elements for pretreatment and the filter elements for post-treatment are respectively arranged in the pretreatment cavity and the post-treatment cavity which are formed by the segmentation, the water production quality is improved, and the whole volume is reduced.
In one embodiment, the post-functional filter element comprises a first post-treatment filter element and a second post-treatment filter element, the fine filter element is inserted into the post-treatment cavity, the first post-treatment filter element and the second post-treatment filter element are inserted into the fine filter element, and the first post-treatment filter element and the second post-treatment filter element are sequentially distributed in the axial direction of the bottle body.
In one embodiment, a post-treatment central tube is arranged in the post-treatment cavity, the fine filter element is sleeved outside the post-treatment central tube, the first post-treatment filter element and the second post-treatment filter element are positioned in the post-treatment central tube, the first post-treatment filter element and the second post-treatment filter element are sequentially distributed in the axial direction of the post-treatment central tube, the second post-treatment filter element is positioned at one side, far away from the first partition member, of the first post-treatment filter element, and the pre-treatment water entering the post-treatment cavity can sequentially pass through the fine filter element, the first post-treatment filter element and the second post-treatment filter element to form pure water after being filtered.
In one embodiment, a second partition member for partitioning the first aftertreatment filter element from the second aftertreatment filter element is arranged in the aftertreatment center tube, a first water guide hole for communicating a water production cavity of the first aftertreatment filter element with a water inlet of the second aftertreatment filter element is formed in the second partition member, a water outlet of the aftertreatment center tube is communicated with a water outlet of the second aftertreatment filter element, a water guide hole is formed in a portion, corresponding to the first aftertreatment filter element, of the aftertreatment center tube, and the bottom end of the aftertreatment center tube is in butt joint with the first partition member.
In one embodiment, a third partition member for partitioning the first post-treatment filter element and the second post-treatment filter element is arranged in the center of the post-treatment center tube, a second water guide hole for communicating a water producing cavity of the first post-treatment filter element and a water inlet of the second post-treatment filter element is formed in the third partition member, a water outlet of the post-treatment center tube is communicated with a water outlet of the second post-treatment filter element, a groove is formed in the outer wall of the post-treatment center tube and is used for forming a water flow passage with the fine filter element, a water delivery passage is formed in the wall of the post-treatment center tube, one end of the water delivery passage is communicated with the water flow passage, the other end of the water delivery passage penetrates through the bottom end face of the post-treatment center tube, a bottom cover of the post-treatment center tube is provided with a post-treatment lower cover, the bottom end face of the post-treatment center tube and the post-treatment lower cover are arranged at intervals, and the inner wall of the post-treatment center tube and the first post-treatment filter element are arranged at intervals.
In one embodiment, a first sealing element is arranged between the outer wall of the post-treatment central tube and the post-treatment lower cover, and an abutting block is arranged between the bottom end face of the post-treatment central tube and the post-treatment lower cover.
In one embodiment, a second seal is provided between the third partition and the inner wall of the aftertreatment center tube.
In one embodiment, an auxiliary sleeve is inserted in the post-treatment cavity, the outer wall of the fine filter element is arranged at intervals between the fine filter element and the bottle body, the auxiliary sleeve is sleeved outside the fine filter element, an auxiliary through hole is formed in the bottom wall of the auxiliary sleeve, one end of the post-treatment central tube, which is provided with a water outlet, penetrates through the auxiliary through hole and then is communicated with the pure water outlet of the bottle body, the auxiliary sleeve is arranged at intervals between the top end of the post-treatment central tube and the fine filter element, a saline sealing ring is arranged between the auxiliary sleeve and the outer wall of the fine filter element, a gap between the fine filter element and the bottle body is divided into a pre-treatment water pressurizing cavity and a concentrated water cavity, the concentrated water cavity is communicated with the concentrated water outlet of the bottle body, and a gap for communicating the post-treatment water inlet of the bottle body and the pre-treatment water pressurizing cavity is formed between the auxiliary sleeve and the bottle body.
In one embodiment, the wall of the auxiliary sleeve is provided with a water guide groove which is arranged along the axial direction, and the water guide groove is communicated between the post-treatment water inlet and the pre-treatment water pressurizing cavity.
In one embodiment, the fine filter element is a roll-type reverse osmosis filter element or a roll-type nanofiltration filter element, the first post-treatment filter element is a sintered carbon rod, and the second post-treatment filter element is a microfiltration membrane filter element or an ultrafiltration membrane filter element.
In one embodiment, the first partition member is a pretreatment upper cover covered on a filter element in the pretreatment cavity, and a third sealing member is arranged between the pretreatment upper cover and the bottle body.
In one embodiment, a first pretreatment filter core and a second pretreatment filter core are arranged in the pretreatment cavity, the first pretreatment filter core is sleeved outside the second pretreatment filter core, and raw water entering from the raw water inlet of the bottle body is filtered through the first pretreatment filter core and the second pretreatment filter core in sequence to form pretreated water.
In one embodiment, the first pretreatment filter element is a spray-melt PP cotton filter element or a folded paper PP cotton filter element, and the second pretreatment filter element is a sintered carbon rod.
In one embodiment, the bottle body comprises a bottle body and a bottle end cover, the bottle end cover is arranged at one end of the bottle body to form the pretreatment cavity, a raw water inlet and a pretreatment water outlet of the bottle body are arranged on the bottle end cover, a pretreatment lower cover is arranged between the end face of the first pretreatment filter element and the bottle end cover, the pretreatment lower cover is arranged at the end of the first pretreatment filter element and the end of the second pretreatment filter element, the pretreatment lower cover and the bottle end cover are arranged at intervals, the outer side wall of the first pretreatment filter element and the bottle body are arranged at intervals, an installation through hole is formed in the pretreatment lower cover, the side wall of the installation through hole extends to be communicated with the pretreatment water outlet, a pretreatment central pipe is inserted in the installation through hole, the pretreatment central pipe extends to the second pretreatment filter element, or the pretreatment lower cover is provided with an installation through hole, the pretreatment central pipe is inserted in the installation through hole, the lower end of the pretreatment central pipe penetrates through the pretreatment central pipe to be installed to the pretreatment central pipe, and the pretreatment central pipe extends to the second pretreatment central pipe, and the pretreatment central pipe extends to the pretreatment central pipe is arranged between the pretreatment central pipe and the pretreatment central pipe, and the pretreatment central pipe extends to the pretreatment central pipe.
In one embodiment, the pretreatment center tube is spaced from the second pretreatment cartridge, and the pretreatment center tube extends to a position proximate to the first separator.
In one embodiment, a support bump is provided between the pretreatment lower cap and the bottle cap.
In one embodiment, the side wall forming the installation through hole is inserted into the pretreatment water outlet, a fourth sealing element is arranged between the side wall forming the installation through hole and the bottle end cover, or the lower end of the pretreatment central tube is inserted into the pretreatment water outlet, a fourth sealing element is arranged between the pretreatment central tube and the bottle end cover, or the auxiliary tube is inserted into the pretreatment water outlet, and a fourth sealing element is arranged between the auxiliary tube and the bottle end cover.
In one embodiment, the raw water inlet and the pretreatment water outlet on the bottle body are arranged at one end, the post-treatment water inlet, the pure water outlet and the concentrated water outlet on the bottle body are arranged at the other end, the raw water inlet is provided with a one-way check valve, the water outlet of the one-way check valve faces into the pretreatment cavity, and the pretreatment water outlet is provided with a water stop valve.
The water purification system comprises the composite filter element assembly, wherein a pretreatment water pipeline is communicated between a pretreatment water outlet and a post-treatment water inlet of the bottle body, a pressurizing pump and a water inlet switch valve are arranged on the pretreatment water pipeline, and the water inlet switch valve is positioned on one side, close to the pretreatment water outlet, of the pressurizing pump.
The scheme provides a water purification system, and the pretreatment water through the two-stage filtration in the pretreatment cavity passes through the pretreatment water pipeline gets into the aftertreatment cavity under the effect of pressurization pump, the pretreatment water in the entering aftertreatment cavity forms the pure water after the filtration of fine filtration filter core and post-functional filter core, realizes at least four-stage filtration. The at least four-stage filter element is respectively arranged in the pretreatment cavity and the post-treatment cavity of the bottle body, so that the integration of the at least four-stage filter function is realized, and the whole volume is reduced.
In one embodiment, the water purification system further comprises a water faucet and a pure water pipeline, one end of the pure water pipeline is communicated with the pure water outlet of the bottle body, the other end of the pure water pipeline is communicated with the water faucet, a water outlet switch valve is arranged on the pure water pipeline, a concentrated water outlet of the bottle body is provided with a concentrated water pipeline, and a wastewater switch valve is arranged on the concentrated water pipeline.
Drawings
FIG. 1 is a cross-sectional view of the composite filter element assembly of the present embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a partial enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C;
Fig. 5 is a system diagram of the water purification system according to the present embodiment.
Reference numerals illustrate:
10. A water purification system, 11, a pretreatment water pipeline, 111, a booster pump, 112, a water inlet switch valve, 12, a tap, 13, a pure water pipeline, 131, a water outlet switch valve, 14, a concentrated water pipeline, 141, a waste water switch valve, 20, a composite filter element assembly, 21, a bottle body, 211, a bottle body, 212, a bottle end cover, 213, a first dividing piece, 2131, a pretreatment cavity, 2132, a post-treatment cavity, 2133, a third sealing piece, 214, a raw water inlet, 2141, a one-way check valve, 215, a pretreatment water outlet, 2151, a water stop valve, 216, a post-treatment water inlet, 217, a pure water outlet, 218, a concentrated water outlet, 22A, a first pretreatment filter element, 22B, a second pretreatment filter element, 23A, a fine filter element, 23B, a first post-treatment filter element, 23C, a second post-treatment filter element, 24, a pretreatment center tube, 241, a fourth seal member, 25, a pretreatment lower cover, 251, a support boss, 26, a post-treatment center tube, 261, a third partition member, 2611, a second water guide hole, 2612, a second seal member, 27, a post-treatment lower cover, 271, a first seal member, 272, an abutment block, 28, an auxiliary sleeve, 281, a water guide groove, 282, a pretreatment water pressurizing cavity, 283, a dense water cavity, 29, and a brine seal ring.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
As shown in fig. 1, in one embodiment, a composite filter element assembly 20 is provided and includes a bottle 21, wherein a first dividing member 213 is disposed in the bottle 21 to divide an inner cavity of the bottle 21 into a pretreatment cavity 2131 and a post-treatment cavity 2132 in an axial direction. Raw water is subjected to a pretreatment process in the pretreatment chamber 2131, and then is subjected to a post-treatment process in the post-treatment chamber 2132, thereby obtaining pure water.
Specifically, as shown in fig. 1, at least two stages of filter elements are disposed in the pretreatment chamber 2131, and a fine filter element 23A and a post-functional filter element are disposed in the post-treatment chamber 2132. Raw water entering the pretreatment cavity 2131 is filtered by at least two stages of filter elements to obtain pretreated water. The pretreated water enters the post-treatment cavity 2132 again, and pure water is obtained after the filtration of the fine filter element 23A and the post-functional filter element for users to use.
In the above-mentioned scheme, the inner cavity of the bottle 21 is axially divided into the pretreatment cavity 2131 and the post-treatment cavity 2132, and then at least two stages of filter elements are disposed in the pretreatment cavity 2131, so as to pretreat raw water, and the fine filter element 23A and the post-functional filter element are disposed in the post-treatment cavity 2132. Thereby integrating at least four-stage filter elements in the bottle body 21, realizing at least four-stage filtration, improving the quality of produced water and reducing the volume of the whole machine.
Specifically, in one embodiment, as shown in fig. 1, the post-functional filter element includes a first post-treatment filter element 23B and a second post-treatment filter element 23C, the fine filter element 23A is inserted into the post-treatment cavity 2132, the first post-treatment filter element 23B and the second post-treatment filter element 23C are both inserted into the fine filter element 23A, and the first post-treatment filter element 23B and the second post-treatment filter element 23C are sequentially distributed in the axial direction of the bottle 21.
Thus, the pretreated water entering the post-treatment chamber 2132 is filtered by the fine filter element 23A, and the water passing through the fine filter element 23A is filtered by the first post-treatment element 23B and the second post-treatment element 23C. The three-stage filtration in the post-treatment cavity 2132 is realized, and meanwhile, the space occupied by the whole filter element is reduced. The water filtered by the fine filter element 23A may pass through the first post-treatment element 23B and then pass through the second post-treatment element 23C, or may pass through the second post-treatment element 23C and then pass through the first post-treatment element 23B, so long as the pretreated water in the post-treatment cavity 2132 may be subjected to three-stage filtration to obtain pure water, thereby improving the quality of produced water.
Further specifically, in one embodiment, a post-treatment central tube 26 is disposed in the post-treatment cavity 2132, the fine filter element 23A is sleeved outside the post-treatment central tube 26, the first post-treatment filter element 23B and the second post-treatment filter element 23C are located in the post-treatment central tube 26, the first post-treatment filter element 23B and the second post-treatment filter element 23C are sequentially distributed in the axial direction of the post-treatment central tube 26, the second post-treatment filter element 23C is located at a side of the first post-treatment filter element 23B away from the first partition 213, and the pre-treatment water entering the post-treatment cavity 2132 can sequentially pass through the fine filter element 23A, the first post-treatment filter element 23B and the second post-treatment filter element 23C to form pure water after being filtered.
By further providing the post-treatment center pipe 26, the water filtered by the fine filter element 23A is filtered by passing through the first post-treatment element 23B and the second post-treatment element 23C in order under the isolation and guide of the post-treatment center pipe 26.
Further, in one embodiment, a partition member is disposed in the post-treatment center tube 26 to partition the first post-treatment filter element 23B and the second post-treatment filter element 23C, and a water guide hole is formed in the partition member, so that under the control of the post-treatment center tube 26, the water filtered by the fine filter element 23A can flow into the second post-treatment filter element 23C from the water guide hole for further filtration only after being filtered by the first post-treatment filter element 23B.
More specifically, in one embodiment, a water diversion hole may be disposed on the post-treatment center pipe 26 at a position corresponding to the first post-treatment filter element 23B, the bottom end of the post-treatment center pipe 26 abuts against the first dividing member 213, the dividing member disposed between the first post-treatment filter element 23B and the second post-treatment filter element 23C is a second dividing member, the water diversion hole on the second dividing member is a first water diversion hole, and after the water filtered by the fine filtration filter element 23A in the post-treatment cavity 2132 is filtered by the first post-treatment filter element 23B only through the water diversion hole, the water flows into the second post-treatment filter element 23C from the first water diversion hole on the second dividing member to perform a further filtration process.
Alternatively, in one embodiment, as shown in fig. 1, a groove may be provided on the outer wall of the post-treatment central tube 26, so as to form a water flow passage with the fine filter element 23A, a water delivery passage is provided on the wall of the post-treatment central tube 26, one end of the water delivery passage is communicated with the water flow passage, and the other end of the water delivery passage penetrates through the bottom end face of the post-treatment central tube 26. The bottom end cover of the post-treatment center tube 26 is provided with a post-treatment lower cover 27, the bottom end surface of the post-treatment center tube 26 is arranged at intervals between the post-treatment lower cover 27, and the inner wall of the post-treatment center tube 26 is arranged at intervals with the first post-treatment filter element 23B. The end of the first post-treatment filter element 23B abuts the post-treatment lower cover 27. The dividing member in the post-treatment center tube 26 is a third dividing member 261, the post-treatment center tube 26 is divided into an upper cavity and a lower cavity, the first post-treatment filter element 23B is located in the lower cavity, the second post-treatment filter element 23C is located in the upper cavity, and the water guide hole on the third dividing member 261 is a second water guide hole 2611.
Based on the water delivery passage penetrating to the bottom end surface of the post-treatment center tube 26, water flowing into the post-treatment center tube 26 from the water delivery passage on the post-treatment center tube 26 first enters a gap between the first post-treatment filter element 23B and the post-treatment center tube 26, is filtered by the first post-treatment filter element 23B, and then enters the second post-treatment filter element 23C from the second water guide hole 2611 for filtering.
Further, in one embodiment, as shown in fig. 1, a second sealing member 2612 is disposed between the third partition member 261 and the inner wall of the post-treatment central tube 26, so as to ensure the isolation tightness between the space where the first post-treatment filter element 23B is located and the space where the second post-treatment filter element 23C is located, so that only the water filtered by the first post-treatment filter element 23B enters the upper cavity through the second water guiding hole on the third partition member 261 and is filtered by the second post-treatment filter element 23C.
Further, in one embodiment, as shown in fig. 2, a first sealing member 271 is disposed between the outer wall of the post-treatment center tube 26 and the post-treatment lower cover 27, and an abutment block 272 is disposed between the bottom end surface of the post-treatment center tube 26 and the post-treatment lower cover 27. So that water entering the water delivery passage can flow into the post-treatment center tube 26 from a gap between the bottom end surface of the post-treatment center tube 26 and the post-treatment lower cover 27, and a two-stage filtration process is performed.
Preferably, the abutment block 272 is located outside the water outlet of the water delivery passage on the bottom end face of the post-treatment center tube 26, thereby further avoiding the abutment block 272 from blocking the flow of water.
Further, in one embodiment, as shown in fig. 1 and 4, an auxiliary sleeve 28 is inserted into the post-treatment cavity 2132. The outer wall of the fine filter element 23A is arranged at intervals with the bottle body 21, and the auxiliary sleeve 28 is sleeved outside the fine filter element 23A. The bottom wall of the auxiliary sleeve 28 is provided with an auxiliary through hole, and one end of the post-treatment central tube 26 provided with a water outlet passes through the auxiliary through hole and then is communicated with the pure water outlet 217 of the bottle body 21. The auxiliary sleeve 28 is arranged at an interval between the top end of the post-treatment central tube 26 and the fine filter element 23A, and a brine sealing ring 29 is arranged between the auxiliary sleeve 28 and the outer wall of the fine filter element 23A to divide the gap between the fine filter element 23A and the bottle 21 into a pre-treatment water pressurizing cavity 282 and a concentrated water cavity 283. The concentrate chamber 283 communicates with the concentrate outlet 218 of the bottle 21. A gap is formed between the auxiliary sleeve 28 and the bottle body 21, which communicates the post-treatment water inlet 216 with the pre-treatment water pressurizing chamber 282.
Thus, in the use process, the pressurized pretreated water is introduced into the pretreated water pressurization cavity 282, under the filtration of the fine filtration filter element 23A, pure water enters the first post-treatment filter element 23B through the post-treatment central tube 26, and concentrated water reaches the concentrated water cavity 283 along the fine filtration filter element 23A and flows out from the concentrated water outlet 218. The brine seal 29 ensures the separation between the pretreated water pressurization cavity 282 and the concentrated water cavity 283, thereby avoiding water channeling.
Specifically, in one embodiment, as shown in fig. 4, the wall of the auxiliary sleeve 28 is provided with a water guiding groove 281 disposed along the axial direction, and the water guiding groove 281 is communicated between the post-treatment water inlet 216 and the pre-treatment water pressurizing cavity 282. As shown in fig. 1 and 4, the water introduced from the post-treatment water inlet 216 passes through the water guide groove 281 and reaches the gap between the fine filter element 23A and the bottle 21.
Further specifically, in one embodiment, the fine filter element 23A is a roll-type reverse osmosis filter element or a roll-type nanofiltration filter element, the first post-treatment filter element 23B is a sintered carbon rod, and the second post-treatment filter element 23C is a microfiltration membrane filter element or an ultrafiltration membrane filter element.
Further, in one embodiment, as shown in fig. 1 and 2, the first dividing member 213 is a pretreatment upper cover covering the filter element in the pretreatment cavity 2131, and a third sealing member 2133 is disposed between the pretreatment upper cover and the bottle body 21.
That is, the first divider 213 blocks the bottle 21, and the pretreatment chamber 2131 and the post-treatment chamber 2132 are not in communication with each other at the first divider 213.
Further, in one embodiment, as shown in fig. 1, a first pretreatment filter element 22A and a second pretreatment filter element 22B are disposed in the pretreatment cavity 2131, the first pretreatment filter element 22A is sleeved outside the second pretreatment filter element 22B, raw water entering from the raw water inlet 214 of the bottle 21 sequentially passes through the first pretreatment filter element 22A and the second pretreatment filter element 22B, and pretreatment water is formed after filtration, and flows out from the pretreatment water outlet 215.
Alternatively, the first pretreatment cartridge 22A and the second pretreatment cartridge 22B may be stacked in the pretreatment chamber 2131, for example, the first pretreatment cartridge 22A and the second pretreatment cartridge 22B may be intercepted between the raw water inlet 214 and the pretreatment water outlet 215 of the bottle 21. Raw water entering from the raw water inlet 214 is filtered by the first pretreatment filter 22A and the second pretreatment filter 22B in sequence to form pretreated water, and the pretreated water flows out from the pretreatment water outlet 215.
However, the first pretreatment filter element 22A and the second pretreatment filter element 22B are sleeved, so that the filtration efficiency and the filtration quality can be improved, and the occupation of the whole space can be reduced.
Further specifically, the first pretreatment filter element 22A may be a spray-melt PP cotton filter element or a folded paper PP cotton filter element, and is used for taking out larger suspended matters, sediment, rust and other pollutants in the water body; the second pretreatment filter element 22B may be a sintered carbon rod, and is used for adsorbing and removing residual chlorine, small molecular organic matters and the like in the water body.
Further, as shown in fig. 1 and 2, when the first pretreatment cartridge 22A and the second pretreatment cartridge 22B are disposed in the pretreatment chamber 2131, the pretreatment upper cover is disposed on the upper ends of the first pretreatment cartridge 22A and the second pretreatment cartridge 22B. The pretreatment upper cover and the first pretreatment filter element 22A and the second pretreatment filter element 22B can be connected by bonding.
Further, in one embodiment, as shown in fig. 1 and 3, the bottle body 21 includes a bottle body 211 and a bottle cap 212, and the bottle cap 212 is capped at one end of the bottle body 211 to form the pretreatment cavity 2131. Alternatively, the bottle 21 may be an integrally formed housing structure.
When the bottle body 21 includes the bottle body 211 and the bottle cap 212, the raw water inlet 214 and the pretreatment water outlet 215 are both provided on the bottle cap 212. During the assembly process, the bottle end cover 212 is covered after at least two stages of filter elements in the pretreatment cavity 2131 are installed in place, so that the assembly is simple.
Further, as shown in fig. 1 and fig. 3, a pretreatment lower cover 25 is disposed between the end face of the first pretreatment filter element 22A and the bottle end cover 212, the pretreatment lower cover 25 is disposed at the end portions of the first pretreatment filter element 22A and the second pretreatment filter element 22B, the pretreatment lower cover 25 and the bottle end cover 212 are disposed at intervals, and the outer side wall of the first pretreatment filter element 22A and the bottle body 211 are disposed at intervals to form a cavity for storing raw water. As shown in fig. 1, raw water entering from the raw water inlet 214 flows into a gap between the first pretreatment cartridge 22A and the bottle body 211 from a gap between the pretreatment lower cover 25 and the bottle cap 212, and is filtered by the first pretreatment cartridge 22A and the second pretreatment cartridge 22B, and is discharged from the pretreatment water outlet 215.
Further, as shown in fig. 1 and 3, the pretreatment lower cover 25 is provided with a mounting through hole, a side wall forming the mounting through hole extends to be communicated with the pretreatment water outlet 215, a pretreatment central tube 24 is inserted into the mounting through hole, and the pretreatment central tube 24 extends into the second pretreatment filter element 22B. The pretreated water filtered by the first pretreatment cartridge 22A and the second pretreatment cartridge 22B flows into the installation through-hole from the pretreatment center pipe 24 and then flows out from the pretreatment water outlet 215.
Or the lower end of the pretreatment center tube 24 passes through the installation through hole to be communicated with the pretreatment water outlet 215, the upper end of the pretreatment center tube 24 extends into the second pretreatment filter element, and the pretreatment water obtained by filtering through the first pretreatment filter element 22A and the second pretreatment filter element 22B flows out of the pretreatment center tube 24. It should be noted that the upper end and the lower end of the pretreatment center tube 24 are described herein for convenience of understanding, and the two ends of the pretreatment center tube 24 in the state shown in fig. 1 are not limited to the orientation, and the two ends of the pretreatment center tube 24 will be changed when the installation angle of the entire composite filter element assembly 20 is changed.
Or the lower end of the pretreatment central tube 24 is just located in the installation through hole, and an auxiliary tube is further arranged between the installation through hole and the pretreatment water outlet 215 and used for communicating the installation through hole and the pretreatment water outlet. The pretreated water filtered by the first pretreatment filter element 22A and the second pretreatment filter element 22B is collected in the pretreatment central tube 24, and then flows out after passing through the installation through hole, the auxiliary tube and the pretreatment water outlet in sequence.
Preferably, the pre-treatment center tube 24 described herein may be a complete tube without water holes in the tube wall. Further, the pretreatment center tube 24 is spaced from the second pretreatment cartridge 22B, and the pretreatment center tube 24 extends to a position close to the first separator 213. So that the first pretreatment filter element 22A and the second pretreatment filter element 22B participate in the filtration process in the axial height more, that is, the first pretreatment filter element 22A and the second pretreatment filter element 22B are fully utilized. The produced pretreated water can flow out of the pretreatment center pipe 24 only when the pretreated water produced by filtration reaches the end of the pretreatment center pipe 24 near the first partition 213.
In one embodiment, as shown in fig. 1, when the first pretreatment filter 22A is sleeved outside the second pretreatment filter 22B, the pretreatment upper cover and the pretreatment lower cover 25 are respectively provided at two ends of the first pretreatment filter 22A and the second pretreatment filter 22B. So that the raw water entering the pretreatment chamber 2131 is filtered by the first pretreatment cartridge 22A and the second pretreatment cartridge 22B in order, and then collected by the pretreatment center tube 24 and flows out of the pretreatment water outlet 215.
Further, in one embodiment, as shown in fig. 1 and 3, a support bump 251 is provided between the pretreatment lower cap 25 and the bottle cap 212. The support projection 251 does not form a continuous ring, i.e., the support projection 251 supports the pretreatment lower cover 25 on the bottle cap 212, but the gap between the raw water inlet 214, the pretreatment lower cover 25 and the bottle cap 212, and the gap between the first pretreatment cartridge 22A and the bottle body 211 remain conductive, and the raw water flowing from the raw water inlet 214 can reach the gap between the first pretreatment cartridge 22A and the bottle body 211.
Further, in one embodiment, as shown in fig. 3, the sidewall forming the installation through hole is inserted into the pretreatment water outlet 215, and a fourth sealing member 241 is provided between the bottle cap 212 and the sidewall forming the installation through hole to improve the sealing performance of the pretreatment cavity 2131.
Or in one embodiment, the lower end of the pre-treatment center tube 24 is inserted in the pre-treatment water outlet 215 such that the fourth seal 241 is disposed between the pre-treatment center tube 24 and the bottle cap 212. Or when the auxiliary tube is provided, the auxiliary tube is inserted in the pre-treatment water outlet 215, and the fourth seal 241 is provided between the auxiliary tube and the bottle cap 212.
Further, in one embodiment, as shown in fig. 1, 3 and 4, the raw water inlet 214 and the pretreatment water outlet 215 on the bottle 21 are provided at one end, and the post-treatment water inlet 216, the pure water outlet 217 and the concentrated water outlet 218 on the bottle are provided at the other end. Thereby being convenient for being applicable to water purifiers such as kitchen formulas and table tops, and further reducing the size of the whole machine.
Further, as shown in fig. 1 and 3, the raw water inlet 214 is provided with a one-way check valve 2141, and a water outlet of the one-way check valve 2141 faces into the pretreatment cavity 2131; the pre-treatment water outlet 215 is provided with a water stop valve 2151. Thereby avoiding the outflow of water from the bottle 21 when the cartridge is replaced.
Moreover, in one embodiment, the first pretreatment filter 22A is a folded paper PP cotton filter, the second pretreatment filter 22B is a sintered carbon rod, the fine filter 23A is a roll reverse osmosis filter or a roll nanofiltration filter, the first post-treatment filter 23B is a sintered carbon rod, and the second post-treatment filter 23C is a microfiltration membrane filter or an ultrafiltration membrane filter. The arrangement can enable the service life of each stage of filter element to be approximately consistent in the using process, thereby improving the efficiency of replacing the filter element.
Further, in another embodiment, as shown in fig. 5, a water purification system 10 is provided, which includes the above-mentioned composite filter element assembly 20, a pretreated water pipeline 11 is connected between a pretreated water outlet 215 of the bottle 21 and a post-treated water inlet 216, a booster pump 111 and a water inlet switch valve 112 are disposed on the pretreated water pipeline 11, and the water inlet switch valve 112 is located on one side of the booster pump 111 close to the pretreated water outlet 215.
The above solution provides a water purification system 10, in which the pretreated water filtered by at least two stages in the pretreatment cavity 2131 enters the post-treatment cavity 2132 through the pretreated water pipeline 11, and under the action of the pressurizing pump 111, the pretreated water entering the post-treatment cavity 2132 forms pure water under the filtration of the fine filtration filter element 23A and the post-functional filter element, so as to realize at least four-stage filtration. The filter elements for at least four-stage filtration are respectively arranged in the pretreatment cavity 2131 and the post-treatment cavity 2132 of the bottle body 21, so that the integration of the at least four-stage filtration function is realized, and the whole volume is reduced.
Moreover, when the water gaps are distributed at the two ends of the bottle body 21, the layout of the whole system is simpler, and the volume of the water purifying system 10 is further reduced.
Further, in one embodiment, the water purification system 10 further includes a faucet 12 and a pure water pipeline 13, one end of the pure water pipeline 13 is communicated with a pure water outlet 217 of the bottle 21, the other end of the pure water pipeline 13 is communicated with the faucet 12, a water outlet switch valve 131 is disposed on the pure water pipeline 13, a concentrated water outlet 218 of the bottle 21 is disposed on the concentrated water pipeline 14, and a wastewater switch valve 141 is disposed on the concentrated water pipeline 14.
In the normal drinking process, the water outlet switch valve 131 is opened, and pure water reaches the faucet 12 through the pure water pipeline 13; the concentrate flows out of the concentrate line 14. During flushing, the water outlet switch valve 131 is closed, and the flushing waste water is discharged from the concentrated water pipeline 14.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (20)
1. The composite filter element assembly is characterized by comprising a bottle body, wherein a first dividing piece is arranged in the bottle body and is used for dividing an inner cavity of the bottle body into a pretreatment cavity and a post-treatment cavity in the axial direction, at least two stages of filter elements are arranged in the pretreatment cavity, a fine filter element and a post-treatment function filter element are arranged in the post-treatment cavity, and pretreated water obtained through filter element filtration in the pretreatment cavity can enter the post-treatment cavity and sequentially pass through the fine filter element and the post-treatment function filter element for filtration;
The first dividing piece is used for dividing the bottle body, and the pretreatment cavity and the post-treatment cavity are not communicated with each other at the first dividing piece.
2. The composite filter element assembly of claim 1, wherein the post-functional filter element comprises a first post-treatment filter element and a second post-treatment filter element, the fine filter element is inserted into the post-treatment cavity, the first post-treatment filter element and the second post-treatment filter element are both inserted into the fine filter element, and the first post-treatment filter element and the second post-treatment filter element are sequentially distributed in an axial direction of the bottle.
3. The composite filter element assembly according to claim 2, wherein a post-treatment central tube is provided in the post-treatment cavity, the fine filter element is sleeved outside the post-treatment central tube, the first post-treatment filter element and the second post-treatment filter element are positioned in the post-treatment central tube, the first post-treatment filter element and the second post-treatment filter element are sequentially distributed in the axial direction of the post-treatment central tube, the second post-treatment filter element is positioned at one side of the first post-treatment filter element away from the first partition member, and the pre-treatment water entering the post-treatment cavity can be filtered by the fine filter element, the first post-treatment filter element and the second post-treatment filter element in sequence to form pure water.
4. A composite filter element assembly according to claim 3, wherein a second partition member is provided in the post-treatment center tube to partition the first and second post-treatment filter elements, a first water guide hole is provided in the second partition member to communicate a water producing chamber of the first post-treatment filter element with a water inlet of the second post-treatment filter element, a water outlet of the post-treatment center tube is communicated with a water outlet of the second post-treatment filter element, a water guide hole is provided in a portion of the post-treatment center tube corresponding to the first post-treatment filter element, and a bottom end of the post-treatment center tube is abutted to the first partition member.
5. A composite filter element assembly according to claim 3, wherein a third partition member for partitioning the first and second post-treatment filter elements is provided in the post-treatment center tube, a second water guide hole for communicating the water producing chamber of the first post-treatment filter element with the water inlet of the second post-treatment filter element is provided in the third partition member, the water outlet of the post-treatment center tube is communicated with the water outlet of the second post-treatment filter element, a groove is provided in the outer wall of the post-treatment center tube for forming a water flow passage with the fine filter element, a water delivery passage is provided in the wall of the post-treatment center tube, one end of the water delivery passage is communicated with the water flow passage, the other end of the water delivery passage penetrates the bottom end face of the post-treatment center tube, a post-treatment lower cover is provided in the bottom end face of the post-treatment center tube and is provided in the space between the post-treatment lower cover, and the inner wall of the post-treatment center tube and the first post-treatment filter element are provided in the space between the bottom end face of the post-treatment center tube and the first post-treatment filter element.
6. The composite filter element assembly of claim 5, wherein a first seal is provided between the outer wall of the post-treatment center tube and the post-treatment lower cap, and an abutment block is provided between the bottom end face of the post-treatment center tube and the post-treatment lower cap.
7. The composite filter element assembly of claim 5, wherein a second seal is provided between the third segment and an inner wall of the aftertreatment center tube.
8. The composite filter element assembly according to claim 3, wherein an auxiliary sleeve is inserted in the post-treatment cavity, an interval is arranged between the outer wall of the fine filter element and the bottle body, the auxiliary sleeve is sleeved outside the fine filter element, an auxiliary through hole is arranged on the bottom wall of the auxiliary sleeve, one end of the post-treatment central tube provided with a water outlet penetrates through the auxiliary through hole and then is communicated with the pure water outlet of the bottle body, an interval is arranged between the auxiliary sleeve and the top end of the post-treatment central tube and the fine filter element, a brine seal ring is arranged between the auxiliary sleeve and the outer wall of the fine filter element, a gap between the fine filter element and the bottle body is divided into a pre-treatment water pressurizing cavity and a concentrated water cavity, the concentrated water cavity is communicated with the concentrated water outlet of the bottle body, and a gap is reserved between the auxiliary sleeve and the bottle body and communicated with the post-treatment water inlet of the bottle body and the pre-treatment water pressurizing cavity.
9. The composite filter element assembly of claim 8, wherein the wall of the auxiliary sleeve is provided with a water guide groove arranged along the axial direction, and the water guide groove is communicated between the post-treatment water inlet and the pre-treatment water pressurizing cavity.
10. The composite filter element assembly of claim 2, wherein the fine filtration filter element is a roll-up reverse osmosis filter element or a roll-up nanofiltration filter element, the first post-treatment filter element is a sintered carbon rod, and the second post-treatment filter element is a microfiltration or ultrafiltration membrane filter element.
11. A composite filter element assembly according to any one of claims 1 to 9, wherein the first segment is a pretreatment upper cap that is capped over a filter element located in the pretreatment cavity, a third seal being provided between the pretreatment upper cap and the bottle.
12. The composite filter element assembly according to any one of claims 1 to 9, wherein a first pretreatment filter element and a second pretreatment filter element are arranged in the pretreatment cavity, the first pretreatment filter element is sleeved outside the second pretreatment filter element, and raw water entering from a raw water inlet of the bottle body is filtered through the first pretreatment filter element and the second pretreatment filter element in sequence to form pretreated water.
13. The composite filter element assembly of claim 12, wherein the first pretreatment filter element is a spray fused PP cotton filter element or a folded paper PP cotton filter element and the second pretreatment filter element is a sintered carbon rod.
14. The composite filter element assembly according to claim 12, wherein the bottle body comprises a bottle body and a bottle end cover, the bottle end cover is arranged at one end of the bottle body to form the pretreatment cavity, a raw water inlet and a pretreatment water outlet of the bottle body are arranged on the bottle end cover, a pretreatment lower cover is arranged between the end face of the first pretreatment filter element and the bottle end cover, the pretreatment lower cover is arranged at the end parts of the first pretreatment filter element and the second pretreatment filter element, the pretreatment lower cover is arranged at an interval with the bottle end cover, the outer side wall of the first pretreatment filter element is arranged at an interval with the bottle body, an installation through hole is formed in the pretreatment lower cover, the side wall of the installation through hole extends to be communicated with the pretreatment water outlet, a pretreatment central tube is inserted in the installation through hole, the pretreatment central tube extends to the second pretreatment filter element, or the pretreatment lower cover is provided with an installation through hole, the pretreatment lower cover is inserted in the installation through hole, the pretreatment central tube extends to the pretreatment central tube, and the pretreatment central tube extends to the pretreatment central tube is arranged between the pretreatment central tube and the pretreatment central tube.
15. The composite filter element assembly of claim 14, wherein the pretreatment center tube is spaced from the second pretreatment filter element, the pretreatment center tube extending to a position proximate the first segment.
16. The composite filter element assembly of claim 14, wherein support lugs are provided between the pretreatment lower cap and the bottle cap.
17. The composite filter element assembly of claim 14, wherein a sidewall forming the mounting through-hole is inserted in the pre-treatment water outlet, and a fourth seal is provided between the sidewall forming the mounting through-hole and the bottle end cap, or a lower end of the pre-treatment center tube is inserted in the pre-treatment water outlet, a fourth seal is provided between the pre-treatment center tube and the bottle end cap, or the auxiliary tube is inserted in the pre-treatment water outlet, and a fourth seal is provided between the auxiliary tube and the bottle end cap.
18. The composite filter element assembly according to any one of claims 1 to 9, wherein a raw water inlet and a pretreatment water outlet on the bottle are provided at one end, a post-treatment water inlet, a pure water outlet and a concentrated water outlet on the bottle are provided at the other end, the raw water inlet is provided with a one-way check valve, a water outlet of the one-way check valve faces into the pretreatment cavity, and the pretreatment water outlet is provided with a water stop valve.
19. A water purification system, characterized by comprising the composite filter element assembly according to any one of claims 1 to 18, wherein a pretreatment water pipeline is communicated between a pretreatment water outlet and a post-treatment water inlet of the bottle body, a pressurizing pump and a water inlet switch valve are arranged on the pretreatment water pipeline, and the water inlet switch valve is positioned on one side of the pressurizing pump close to the pretreatment water outlet.
20. The water purification system of claim 19, further comprising a faucet and a purified water pipeline, wherein one end of the purified water pipeline is communicated with the purified water outlet of the bottle, the other end of the purified water pipeline is communicated with the faucet, a water outlet switch valve is arranged on the purified water pipeline, a concentrated water outlet of the bottle is provided with a concentrated water pipeline, and a wastewater switch valve is arranged on the concentrated water pipeline.
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| CN110980984B (en) * | 2019-11-22 | 2024-09-24 | 珠海格力电器股份有限公司 | Filter element assembly and ultrafiltration water purifier |
| CN110734156B (en) * | 2019-11-22 | 2024-06-21 | 珠海格力电器股份有限公司 | Filter element assembly and ultrafiltration water purifier |
| CN111217467A (en) * | 2020-02-19 | 2020-06-02 | 珠海格力电器股份有限公司 | Water purifier filter element, water purification system and water purifier |
| CN112156655A (en) * | 2020-08-06 | 2021-01-01 | 宁波方太厨具有限公司 | Composite filter element structure for water purifier |
| CN111807539B (en) * | 2020-08-06 | 2024-08-20 | 珠海格力电器股份有限公司 | Composite filter element and water purifier system |
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| CN104291463A (en) * | 2014-09-22 | 2015-01-21 | 珠海格力电器股份有限公司 | Water purification system |
| CN107804924A (en) * | 2017-12-08 | 2018-03-16 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of composite filter element and purifier |
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| CN108569727B (en) * | 2017-03-07 | 2023-09-26 | 佛山市顺德区美的饮水机制造有限公司 | water purification system |
| CN206562313U (en) * | 2017-03-07 | 2017-10-17 | 佛山市顺德区美的饮水机制造有限公司 | Water cleaning systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104291463A (en) * | 2014-09-22 | 2015-01-21 | 珠海格力电器股份有限公司 | Water purification system |
| CN107804924A (en) * | 2017-12-08 | 2018-03-16 | 浙江朗诗德健康饮水设备股份有限公司 | A kind of composite filter element and purifier |
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