CN111252924A - Compound filter element group spare and water purification system - Google Patents

Compound filter element group spare and water purification system Download PDF

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Publication number
CN111252924A
CN111252924A CN202010103367.1A CN202010103367A CN111252924A CN 111252924 A CN111252924 A CN 111252924A CN 202010103367 A CN202010103367 A CN 202010103367A CN 111252924 A CN111252924 A CN 111252924A
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CN
China
Prior art keywords
filter element
shell
filter
communicated
reverse osmosis
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Pending
Application number
CN202010103367.1A
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Chinese (zh)
Inventor
柏长升
滕勇
刘明
姜研
刘德茂
高威
李友铃
申鸿海
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202010103367.1A priority Critical patent/CN111252924A/en
Publication of CN111252924A publication Critical patent/CN111252924A/en
Pending legal-status Critical Current

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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • 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
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • 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
    • C02F2303/02—Odour removal or prevention of malodour
    • 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
    • C02F2303/04—Disinfection

Abstract

The invention provides a composite filter element assembly and a water purification system, wherein the composite filter element assembly comprises a first shell, and a front filter element and a rear filter element are arranged in the first shell; the filter is characterized by also comprising a filter flask, wherein a raw water inlet and a first-stage filtering outlet are respectively arranged on the first shell and communicated with the front filter element, and the first-stage filtering outlet is communicated with the inside of the filter flask; still include the second shell, the inside reverse osmosis membrane that is provided with of second shell, the second shell have with the leading filtration back mouth of a river of filter flask inside intercommunication and with the communicating second export of the rearmounted filter core in the first shell. The invention can effectively ensure that the service lives of the two filter elements are synchronous, and when the service lives of the two filter elements reach the service life period, the front and rear filter elements can reach the service life period, and can be disassembled and replaced, so that the utilization rate of the front and rear filter elements can be maximized, the filtering effect is improved, and the cost is effectively reduced.

Description

Compound filter element group spare and water purification system
Technical Field
The invention belongs to the technical field of water purification, and particularly relates to a composite filter element assembly and a water purification system.
Background
In the existing filter element technology, a composite filter element is adopted to improve the water purification efficiency of water, but the multistage filter elements are different in positions such as front or rear positions, so that the condition that the service lives of the filter material structures are asynchronous even if the filter material structures made of the same materials are different is caused, but the integral structure of the filter element is inconvenient to disassemble, so that the filter element with short service life is still not required to be replaced when the service life of the filter element is prolonged, and therefore the utilization efficiency of the filter element is low and the cost is consumed if the filter element is integrally replaced at the moment, the filter effect is poor if the filter element is not replaced, and the water purification efficiency is low.
The composite filter element assembly and the water purification system are researched and designed due to the technical problems that the filter effect is poor, the utilization efficiency is low, the cost is consumed and the like because the service lives of the filter material structures are asynchronous in the composite filter element assembly in the prior art.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem of overcoming the defect of poor filtering effect caused by asynchronous service life of the filter material structure of the composite filter element assembly in the prior art, thereby providing the composite filter element assembly and the water purifying system.
The present invention provides a composite filter element assembly comprising:
the first shell is internally provided with a front filter element and a rear filter element at the same time; the filter is characterized by further comprising a filter bottle, wherein a raw water inlet and a first-stage filtering outlet are formed in the first shell and communicated with the front filter element respectively, and the first-stage filtering outlet is communicated with the inside of the filter bottle;
still include the second shell, the inside reverse osmosis membrane that is provided with of second shell, the second shell have with the inside leading filtration back mouth of a river of intercommunication of filter flask and with in the first shell the communicating second export of rearmounted filter core.
Preferably, the first and second electrodes are formed of a metal,
a sealing part is arranged between the front filter element and the rear filter element; and/or the material of the front filter element and the rear filter element is activated carbon.
Preferably, the first and second electrodes are formed of a metal,
the first shell and the second shell are connected and arranged, and the first shell and the second shell are arranged in the filter bottle.
Preferably, the first and second electrodes are formed of a metal,
the first shell and the second shell are connected through threads.
Preferably, the first and second electrodes are formed of a metal,
the reverse osmosis membrane is wound on the central pipe, and one axial end of the central pipe is communicated with the second outlet on the second shell;
the central tube is provided with a through hole penetrating through the inner wall and the outer wall of the central tube so as to allow water filtered out by the reverse osmosis membrane to enter the central tube, or the central tube is made of a material capable of allowing fluid to pass through.
Preferably, the first and second electrodes are formed of a metal,
the second shell is also provided with a concentrated water channel, one end of the concentrated water channel is communicated with the water filtered by the reverse osmosis membrane, and the other end of the concentrated water channel is communicated to a concentrated water outlet; and/or a pure water channel is further arranged on the second shell, one end of the pure water channel is communicated with the water in the first shell and filtered by the post-filter element, and the other end of the pure water channel is communicated to a pure water outlet.
Preferably, the first and second electrodes are formed of a metal,
the first shell is provided with a second inlet, one end of the second inlet is communicated with the second outlet of the second shell, and the other end of the second inlet is communicated with the rear filter element.
Preferably, the first and second electrodes are formed of a metal,
and a third outlet is formed in the first shell, one end of the third outlet is communicated with the rear filter element, and the other end of the third outlet is communicated with the pure water channel of the second shell.
Preferably, the first and second electrodes are formed of a metal,
and a waterproof sealing ring is also arranged in the filter flask and between the reverse osmosis membrane and the inner wall of the filter flask.
The invention also provides a water purification system comprising the composite filter element assembly as described in any one of the preceding claims.
The composite filter element assembly and the water purification system provided by the invention have the following beneficial effects:
the invention arranges two split shells, a front filter element and a rear filter element in a first shell, a reverse osmosis membrane in a second shell, and through the arrangement of the water path, the water firstly enters the preposed filter element, then enters the filter flask, enters the reverse osmosis membrane in the second shell through the preposed filtering rear water inlet for filtering, and finally enters the postposition filter element in the first shell for filtering, so that the preposed filter element and the postposition filter element are arranged in the same shell, because the filter materials of the front filter element and the rear filter element are usually the same or mostly the same, the filter materials are arranged in the same cavity, so that the service lives of the two filter elements can be effectively ensured to be synchronous, when the service life reaches the service life, the front and rear filter elements can reach the service life, and are disassembled and replaced, so that the utilization rate of the front and rear filter elements is maximized, the filtering effect is improved, and the cost is effectively reduced.
Drawings
FIG. 1 is a schematic view of the internal structure of a composite filter element assembly of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
The reference numbers in the figures denote:
1. a first housing; 11. a raw water inlet; 12. a first stage filtration outlet; 13. a second inlet; 14. a third outlet; 2. a front filter element; 3. a post-positioned filter element; 4. a filter flask; 5. a second housing; 51. a front filtering rear water inlet; 52. a second outlet; 53. a concentrated water channel; 54. a concentrated water outlet; 55. a pure water channel; 56. a pure water outlet; 6. a reverse osmosis membrane; 7. a sealing member; 8. a central tube; 9. a waterproof sealing ring; 10. and an upper cover plate.
Detailed Description
As shown in fig. 1-2, the present invention provides a composite filter element assembly comprising:
the filter comprises a first shell 1, a second shell and a third shell, wherein a front filter element 2 and a rear filter element 3 are arranged in the first shell; the filter is characterized by further comprising a filter bottle 4, a raw water inlet 11 and a first-stage filtering outlet 12 are respectively arranged on the first shell 1 and communicated with the front filter element 2, and the first filtering outlet is communicated with the inside of the filter bottle 4;
the filter bottle further comprises a second shell 5, a reverse osmosis membrane 6 is arranged inside the second shell 5, and the second shell 5 is provided with a front filtering rear water inlet 51 communicated with the inside of the filter bottle 4 and a second outlet 52 communicated with the rear filter element 3 in the first shell 1.
The invention arranges two split shells, a front filter element and a rear filter element in a first shell, a reverse osmosis membrane in a second shell, and through the arrangement of the water path, the water firstly enters the preposed filter element, then enters the filter flask, enters the reverse osmosis membrane in the second shell through the preposed filtering rear water inlet for filtering, and finally enters the postposition filter element in the first shell for filtering, so that the preposed filter element and the postposition filter element are arranged in the same shell, because the filter materials of the front filter element and the rear filter element are usually the same or mostly the same, the filter materials are arranged in the same cavity, so that the service lives of the two filter elements can be effectively ensured to be synchronous, when the service life reaches the service life, the front and rear filter elements can reach the service life, and are disassembled and replaced, so that the utilization rate of the front and rear filter elements is maximized, the filtering effect is improved, and the cost is effectively reduced.
The invention integrates the front filter element and the rear filter element in a cavity to realize the disassembly, and meanwhile, the service lives of the two filter elements are close to each other (generally, the service life of a reverse osmosis membrane is longest, PP cotton is shortest, a front active carbon field is the third field, and a rear active carbon field is the second field, so that the quick-wear part is considered to be replaced firstly); filter materials such as a reverse osmosis membrane filter element and the like are integrated in a cavity to form a filter element; the filter element formed by the front filter element and the rear filter element is connected with the reverse osmosis membrane filter element by screw threads to form a composite filter element.
The front filter element and the rear filter element are arranged along the direction of the central tube, the central tube is divided into two parts, and water through holes are formed in the periphery of the upper half part; the upper end is made into a step shape, the front filter element and the rear filter element are embedded into the upper end of the central tube, and a sealing part is arranged between the front filter element and the rear filter element; the lower end of the central tube is provided with a reverse osmosis membrane, and the outer part of the central tube is provided with a shell and a filter flask; the front filter element and the rear filter element are combined into a filter element and can be disassembled; and simultaneously, the filter core formed by the reverse osmosis membrane is screwed with the filter core through threads, so that a composite filter core is formed.
The water route of this filter core is: raw water is filtered by a preposed filter element and then reaches a central tube and a filter flask to form purified water; the water purification gets into the reverse osmosis membrane filter core along waterway channel and filters, forms the pure water, and the pure water is used for drinking through rearmounted filter core again, and dense water is direct to be discharged from the discharge water route.
Preferably, the first and second electrodes are formed of a metal,
a sealing part 7 is arranged between the front filter element 2 and the rear filter element 3; and/or the material of the front filter element 2 and the rear filter element 3 is active carbon. The front filter element and the rear filter element can be effectively sealed through the arrangement of the sealing part, so that the water filtered after the raw water enters the front filter element and the water passing through the reverse osmosis membrane and the rear filter element are effectively separated, the confusion of the water and the water is prevented, and the filtering precision is ensured; the front filter element and the rear filter element are both made of activated carbon, but the functions of the front filter element and the rear filter element are not completely the same, the front activated carbon is mainly used for removing chlorine, the rear activated carbon is mainly used for improving the taste, the front activated carbon and the rear activated carbon are vertically arranged in different cavities in the prior art, so that the service lives of the front activated carbon and the rear activated carbon are not synchronous, the utilization rate of one of the front activated carbon and the rear activated carbon is not maximized, or one of the front activated carbon and the rear activated carbon reaches the end of the service life too early to cause the situation that the filtering effect is poor, so that the service lives of the front activated carbon and the.
The connection mode of the front filter element and the rear filter element with the reverse osmosis membrane filter element can adopt other mechanical connection, electric connection and the like, and can be replaced.
The mode of arranging of filter core can multistage filter core establish ties, forms the composite filter core of upper end, and in the same way, the multistage filter core also can establish ties to the reverse osmosis membrane filter core of lower extreme, forms the composite filter core of lower extreme.
Preferably, the first and second electrodes are formed of a metal,
the first shell 1 and the second shell 5 are connected, and the first shell 1 and the second shell 5 are arranged inside the filter bottle 4. This is the preferred form of connection between the two housings of the invention, and the placement of the two housings in proximity enables the formation of a composite filter cartridge that is integral with the filter flask and further disposed within the interior of the filter flask to form a complete filter assembly.
Preferably, the first and second electrodes are formed of a metal,
the first housing 1 and the second housing 5 are connected through screw threads. The combination strength of the two can be enhanced through threaded connection, and the two shells can be firmly and effectively connected into a whole.
Preferably, the first and second electrodes are formed of a metal,
the reverse osmosis membrane 6 is also provided with a central pipe 8 inside, the reverse osmosis membrane 6 is wound on the central pipe 8, and one axial end of the central pipe 8 is communicated with the second outlet 52 on the second shell 5;
the central tube 8 is provided with a through hole penetrating through the inner wall and the outer wall of the central tube to allow water filtered out of the reverse osmosis membrane 6 to enter the central tube 8, or the central tube 8 is made of a material capable of allowing fluid to pass through. The central tube that sets up through reverse osmosis membrane inside can support reverse osmosis membrane, make things convenient for reverse osmosis membrane to convolute to the water that filters reverse osmosis membrane out is derived the second shell, and gets into the rearmounted filter core of first shell and carries out further filtering action.
The central tube is arranged to be a structure (preferably a carbon rod) allowing fluid to pass through, the reverse osmosis membrane is rolled on the central tube, and compared with the existing structure in which the central tube is arranged outside the carbon rod to wind the RO membrane, the structure of the central tube is effectively omitted, the volume of the rolled reverse osmosis composite filter element is reduced, and the space of the composite filter element is reduced.
Preferably, the first and second electrodes are formed of a metal,
the filter material that can allow the fluid to pass through includes: at least one of a carbon material, a polypropylene pp material, and a ceramic material. The filter material is the preferred material of the filter material, can allow water to effectively pass through, can filter the water passing through the filter material, can form a primary filtering effect while realizing the supporting function of the central tube, overcomes the defect of volume increase caused by the increase of the number of filter element stages, reduces the volume and saves the cost.
Preferably, the first and second electrodes are formed of a metal,
the central tube is of a cylindrical carbon rod structure consisting of the carbon material; or the central pipe is of a cylindrical PP structure made of the polypropylene PP material; or, the central tube 3 is a cylindrical ceramic tube structure made of the ceramic material. The filter material capable of allowing fluid to pass through can comprise: carbon rods, cylindrical polypropylene pp material filter materials, ceramic tubes and the like are preferably used for improving the taste of carbon as the material of the central tube of the roll-type membrane element, so that the plastic central tube used by the existing roll-type membrane can be abandoned, the use of the plastic central tube of the existing roll-type membrane element is avoided, and one membrane element can have two-stage filtering functions; the carbonaceous central tube is utilized, so that the subsequent reuse of the taste filter element can be avoided, and the membrane element integrates two-stage filtering functions of a fine filtering filter element and a rear taste filter element; the carbonaceous central tube does not have macroscopic macropore, and its surface is covered with structural micropore, compares in the visual macroporous central tube of traditional working of plastics, and roll-type diaphragm produced water is collected more easily. The PP cylindrical central tube can effectively remove various particle impurities in the filtered liquid, has a multilayer depth structure, large pollutant carrying capacity, large filtering flow, small pressure difference, no chemical adhesive, higher sanitation, higher safety, acid resistance, alkali resistance, organic solution and oil resistance, good chemical stability and integration of surface, deep layer and coarse and fine filtering; has the characteristics of large flow, corrosion resistance, high pressure resistance, low cost and the like. Used for blocking large granular substances such as rust, silt, worm eggs and the like in water. The ceramic tube-shape center tube can filter, antibiotic and activation treatment drinking water, harmful removal chlorine residue and suspended pollutant, organic chemical substance, colour and peculiar smell, can filter out the drinking water that reaches certain drinking standard through using this filter core.
Preferably, the first and second electrodes are formed of a metal,
the second shell 5 is also provided with a concentrated water channel 53, one end of the concentrated water channel 53 is communicated with the water filtered by the reverse osmosis membrane 6, and the other end of the concentrated water channel 53 is communicated to a concentrated water outlet 54; and/or a pure water channel 55 is further arranged on the second housing 5, one end of the pure water channel 55 is communicated with the water in the first housing 1 and filtered by the post-filter element 3, and the other end is communicated to a pure water outlet 56. The water precipitated by the reverse osmosis membrane (namely the water which cannot enter the reverse osmosis membrane) can be led out through the concentrated water channel arranged on the second shell to form waste water; the water which enters the reverse osmosis membrane and is further filtered by the post-positioned filter element can be led out through the pure water channel to form pure water; further, concentrated water, pure water, raw water and the like are integrally arranged in the integral filter element.
Preferably, the first and second electrodes are formed of a metal,
the first shell 1 is provided with a second inlet 13, one end of the second inlet 13 is communicated with the second outlet 52 of the second shell 5, and the other end is communicated with the rear filter element 3. The water that the second export of second shell came out can be switched on (being about to filter the water that obtains in the reverse osmosis membrane center tube) through the second import on the first shell, forms the effective switch-on of the water between rearmounted filter core and the reverse osmosis membrane.
Preferably, the first and second electrodes are formed of a metal,
the first housing 1 is provided with a third outlet 14, one end of the third outlet 14 is communicated with the rear filter element 3, and the other end is communicated with the pure water channel 55 of the second housing 5. The third export through first shell can be effectively with leading-in pure water passageway of water after the filtration of rearmounted filter core in the first shell, accomplish the process of switching on of pure water.
Preferably, the first and second electrodes are formed of a metal,
and a waterproof sealing ring 9 is also arranged in the filter flask 4 and between the reverse osmosis membrane 6 and the inner wall of the filter flask 4. Through the setting of water proof sealing washer can be isolated through the water that reverse osmosis membrane separated out with the filterable water of not reverse osmosis membrane, guarantee the effective derivation of dense water, guarantee filterable purity and precision.
The invention also provides a water purification system comprising the composite filter element assembly as described in any one of the preceding claims.
The invention integrates the front filter element and the rear filter element in a cavity to realize the disassembly, and the service lives of the two filter elements are approximate (generally, the service life of a reverse osmosis membrane is longest and can be generally used for more than 2 years, and PP cotton is generally 4-6 months, front active carbon is 8-12 months, and rear active carbon is 12-18 months, so that the wearing parts are considered to be replaced first); filter materials such as a reverse osmosis membrane filter element and the like are integrated in a cavity to form a filter element; the filter element formed by the front filter element and the rear filter element is connected with the reverse osmosis membrane filter element by screw threads to form a composite filter element.
The invention integrates the front-mounted filter element and the rear-mounted filter element in a cavity, integrates the filter elements such as a reverse osmosis membrane in a cavity, and forms a composite filter element by threaded connection, thereby saving the cost, ensuring the service life of the filter elements to be synchronous, and realizing the disassembly at the same time.
The invention is composed of an upper end cover, a preposed filter element, a postposition filter element, a sealing clapboard arranged between the preposed filter element and the postposition filter element, a central tube, a reverse osmosis membrane, a waterproof sealing ring, a reverse osmosis membrane shell and a filter bottle, wherein the central tube can prevent filtered water from being mixed with other water paths.
The front filter element and the rear filter element are integrated in a cavity, and are integrated in a cavity together with a reverse osmosis membrane filter element, and the front filter element, the rear filter element and the reverse osmosis membrane filter element are connected in series by threaded connection, so that a composite filter element is formed.
The front filter element and the rear filter element are arranged along the direction of the central tube, the central tube is divided into two parts, and water through holes are formed in the periphery of the upper half part; the upper end is made into a step shape, the front filter element and the rear filter element are embedded into the upper end of the central tube, and a sealing part is arranged between the front filter element and the rear filter element; the lower end of the central tube is provided with a reverse osmosis membrane, and the outer part of the central tube is provided with a shell and a filter flask; the front filter element and the rear filter element are combined into a filter element and can be disassembled; and simultaneously, the filter core formed by the reverse osmosis membrane is screwed with the filter core through threads, so that a composite filter core is formed.
The water route of this filter core is: raw water is filtered by a preposed filter element and then reaches a central tube and a filter flask to form purified water; the water purification gets into the reverse osmosis membrane filter core along waterway channel and filters, forms the pure water, and the pure water is used for drinking through rearmounted filter core again, and dense water is direct to be discharged from the discharge water route.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A composite filter element assembly, comprising: the method comprises the following steps:
the filter comprises a first shell (1), wherein a front filter element (2) and a rear filter element (3) are arranged in the first shell; the filter is characterized by further comprising a filter bottle (4), wherein a raw water inlet (11) and a first-stage filtering outlet (12) are respectively arranged on the first shell (1) and communicated with the front filter element (2), and the first-stage filtering outlet is communicated with the inside of the filter bottle (4);
the filter bottle is characterized by further comprising a second shell (5), wherein a reverse osmosis membrane (6) is arranged inside the second shell (5), and the second shell (5) is provided with a front-mounted filtering rear water inlet (51) communicated with the inside of the filter bottle (4) and a second outlet (52) communicated with the rear filter element (3) in the first shell (1).
2. The composite filter element assembly of claim 1, wherein:
a sealing part (7) is arranged between the front filter element (2) and the rear filter element (3); and/or the front filter element (2) and the rear filter element (3) are made of activated carbon.
3. The composite filter element assembly of claim 1 or 2, wherein:
the first shell (1) and the second shell (5) are connected, and the first shell (1) and the second shell (5) are arranged inside the filter bottle (4).
4. The composite filter element assembly of claim 3, wherein:
the first shell (1) and the second shell (5) are connected through threads.
5. The composite filter element assembly according to any one of claims 1-4, wherein:
a central pipe (8) is further arranged inside the reverse osmosis membrane (6), the reverse osmosis membrane (6) is wound on the central pipe (8), and one axial end of the central pipe (8) is communicated with the second outlet (52) on the second shell (5);
the central pipe (8) is provided with a through hole penetrating through the inner wall and the outer wall of the central pipe to allow water filtered out of the reverse osmosis membrane (6) to enter the central pipe (8), or the central pipe (8) is made of a material capable of allowing fluid to pass through.
6. The composite filter element assembly according to any one of claims 1-5, wherein:
the second shell (5) is also provided with a concentrated water channel (53), one end of the concentrated water channel (53) is communicated with the water filtered by the reverse osmosis membrane (6), and the other end of the concentrated water channel is communicated to a concentrated water outlet (54); and/or a pure water channel (55) is further arranged on the second shell (5), one end of the pure water channel (55) is communicated with water in the first shell (1) and filtered by the post-filter element (3), and the other end of the pure water channel is communicated to a pure water outlet (56).
7. The composite filter element assembly of claim 6, wherein:
the first shell (1) is provided with a second inlet (13), one end of the second inlet (13) is communicated with the second outlet (52) of the second shell (5), and the other end of the second inlet is communicated with the rear filter element (3).
8. The composite filter element assembly of claim 6, wherein:
and a third outlet (14) is formed in the first shell (1), one end of the third outlet (14) is communicated with the rear filter element (3), and the other end of the third outlet is communicated with the pure water channel (55) of the second shell (5).
9. The composite filter element assembly according to any one of claims 1-8, wherein:
and a waterproof sealing ring (9) is also arranged in the filter flask (4) and between the reverse osmosis membrane (6) and the inner wall of the filter flask (4).
10. A water purification system, its characterized in that: a composite filter element assembly comprising any one of claims 1-9.
CN202010103367.1A 2020-02-19 2020-02-19 Compound filter element group spare and water purification system Pending CN111252924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010103367.1A CN111252924A (en) 2020-02-19 2020-02-19 Compound filter element group spare and water purification system

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Application Number Priority Date Filing Date Title
CN202010103367.1A CN111252924A (en) 2020-02-19 2020-02-19 Compound filter element group spare and water purification system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113750802A (en) * 2021-09-24 2021-12-07 佛山市芯耀环保科技有限公司 Reverse osmosis membrane filter element and manufacturing method thereof
CN116102122A (en) * 2023-01-10 2023-05-12 珠海格力电器股份有限公司 Water purification system and flushing control method and device thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113750802A (en) * 2021-09-24 2021-12-07 佛山市芯耀环保科技有限公司 Reverse osmosis membrane filter element and manufacturing method thereof
CN116102122A (en) * 2023-01-10 2023-05-12 珠海格力电器股份有限公司 Water purification system and flushing control method and device thereof

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