CN210915441U - Multistage reverse osmosis filtering component - Google Patents
Multistage reverse osmosis filtering component Download PDFInfo
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- CN210915441U CN210915441U CN201921678116.5U CN201921678116U CN210915441U CN 210915441 U CN210915441 U CN 210915441U CN 201921678116 U CN201921678116 U CN 201921678116U CN 210915441 U CN210915441 U CN 210915441U
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- reverse osmosis
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Abstract
The utility model discloses a multistage reverse osmosis filter assembly, which relates to the technical field of water treatment, and comprises a shell, wherein a shell cavity of the shell is sequentially divided into a water inlet section, a filter section and a water outlet section from a raw water inlet to a concentrated water outlet, the water inlet section is of a structure with gradually narrowed diameter, at least 2 reverse osmosis filter elements are arranged in the filter section, a transition passage is connected between adjacent reverse osmosis filter elements, the diameters of two ends of the transition passage are respectively larger than or equal to the diameter of the reverse osmosis filter element connected with the end part of the transition passage, and the diameter of each reverse osmosis filter element is gradually reduced along the direction from the raw water inlet to the; the reverse osmosis filter element comprises a central tube and reverse osmosis membranes wound on the central tube, each reverse osmosis filter element and the transition channel share the central tube, one end of the central tube close to the raw water inlet is sealed, and one end of the central tube close to the concentrated water outlet is opened and penetrates out of the center of the end cover. The utility model relates to a rationally, simple structure, water recovery rate are high, and waste water discharge is few, and energy saving consumes, improves the filter effect.
Description
Technical Field
The utility model relates to a water treatment technical field especially relates to a multistage reverse osmosis filter assembly.
Background
The common product structure of reverse osmosis technology in water treatment is as follows: a central tube with a plurality of holes, and a plurality of layers of reverse osmosis membranes and diversion nets which are alternately stacked and coiled on the central tube form a reverse osmosis filter element, which generally has a cylindrical pressure container as a shell, and the central tube penetrates through two ends of the shell.
In the use process, raw water enters the reverse osmosis membrane element from one end of the shell, and under the action of pressure, part of water is filtered by the reverse osmosis membrane and then is changed into pure water which enters the central pipe and flows out of the central pipe, and the other part of water is used as waste water and flows out of the other end of the shell.
In order to ensure that the effluent has high purity, a plurality of reverse osmosis filtering assemblies which are connected in parallel or in series are generally required to be filtered, so a plurality of pipelines are required to be installed, and each processing unit is dispersed, thus occupying a large amount of installation area, and leading to more complicated installation and management and low working efficiency; in addition, after filtration, the outlet water pressure is reduced, and the outlet water is required to be pressurized and conveyed to the next reverse osmosis filtration component again for filtration, so that the energy consumption is improved, and the operation and maintenance cost is increased.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a multistage reverse osmosis filter assembly which has simple structure, easy use, small occupied area, good filtering effect and no need of repeated pressurization
In order to realize the purpose of the utility model, the utility model adopts the technical scheme that: a multi-stage reverse osmosis filter assembly comprises a shell and end covers arranged at two ends of the shell, wherein a raw water inlet is formed in one end cover, a concentrated water outlet is formed in the other end cover, and the multi-stage reverse osmosis filter assembly is characterized in that a shell cavity of the shell is sequentially divided into a water inlet section, a filter section and a water outlet section from the raw water inlet to the concentrated water outlet, the water inlet section is of a structure with a gradually narrowed diameter, the water outlet section is of a structure with a gradually enlarged diameter, at least 2 reverse osmosis filter elements are arranged in the filter section, a transition channel is connected between adjacent reverse osmosis filter elements and is of a structure with a gradually narrowed diameter, the diameters of two ends of the transition channel are respectively larger than or equal to the diameters of the reverse osmosis filter elements connected with the end part of the transition; the reverse osmosis filter core includes center tube and the reverse osmosis membrane of coiling on the center tube, and each reverse osmosis filter core, transition passageway share a center tube, has seted up a plurality of limbers on the center tube of reverse osmosis membrane coiling department, the one end that the nearly raw water of center tube import is sealed, and the one end opening of the nearly dense water export of center tube is worn out the center of end cover.
Raw water enters from a raw water inlet, one part of the raw water is converted into purified water through a reverse osmosis filter element and enters a central pipe, the other part of the raw water is concentrated water and enters a next reverse osmosis filter element for filtration treatment, the concentrated water after multiple times of filtration treatment flows out from a concentrated water outlet, and the purified water flows out from a pipe cavity of the central pipe.
Furthermore, two ends of the reverse osmosis membrane are folded and then wound on the central tube, two ends of the reverse osmosis membrane at the parallel folding position are bonded through a sealant, a water inlet flow channel is formed between the inner surfaces of the two ends, and a water production flow channel is formed between the adjacent outer surface and the outer surface of the two ends and the outer wall of the central tube; the tail end of the reverse osmosis membrane after being wound is adhered to the reverse osmosis membrane roll through a sealant, and the adjacent outer surfaces of the two ends of the reverse osmosis membrane vertical to the folded position and the outer surfaces of the two ends of the reverse osmosis membrane are adhered to the central tube through the sealant; the water inlet flow passage is communicated with the water inlet section, the transition passage and the water outlet section, and the water production flow passage is communicated with the central pipe.
Further, the length of the reverse osmosis filter element from the raw water inlet to the concentrated water outlet is reduced in sequence.
Furthermore, a sealing ring sleeve is arranged between the reverse osmosis membrane and the inner wall of the shell.
Further, the central tube is glued to the end cap.
Further, the shell is a glass fiber reinforced plastic shell.
The utility model has the advantages that: the reverse osmosis component has the advantages of reasonable design, simple structure, convenient production, high water recovery rate, less wastewater discharge, reduction of water resource waste and great social benefit; the diameter of water flow through gradually narrows the section of intaking and go out the water section, and the velocity of flow increases, and water pressure increases promptly need not to pressurize in addition, and energy saving improves the filter effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the reverse osmosis filter element of the present invention.
In the figure: the water purifier comprises a shell 1, an end cover 2, a raw water inlet 3, a concentrated water outlet 4, a water inlet section 5, a filtering section 6, a water outlet section 7, a reverse osmosis filter element 8, a transition passage 9, a central tube 10, a reverse osmosis membrane 11, a sealing ring sleeve 12, a limber hole 13, a water inlet flow passage 14 and a water production flow passage 15.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a multi-stage reverse osmosis filter assembly comprises a housing 1, end caps 2 installed at two ends of the housing 1, a raw water inlet 3 formed on one end cap 2, a concentrated water outlet 4 formed on the other end cap 2, the housing 1 is a glass fiber reinforced plastic housing 1, a housing cavity of the housing 1 is sequentially divided into a water inlet section 5, a filter section 6 and a water outlet section 7 from the raw water inlet 3 to the concentrated water outlet 4, the water inlet section 5 is of a gradually narrowed diameter structure, the water outlet section 7 is of a gradually enlarged diameter structure, at least one reverse osmosis filter element 8 is arranged in the filter section 6, a sealing ring sleeve 12 is arranged between a reverse osmosis membrane 11 and the inner wall of the housing 1, a transition channel 9 is connected between adjacent reverse osmosis filter elements 8, the transition channel 9 is of a gradually narrowed diameter structure, the diameters at two ends of the transition channel 9 are respectively greater than or equal to the diameter of the reverse osmosis filter element 8 connected with the end of the transition channel 9, the, the lengths of the reverse osmosis filter elements 8 in the direction from the raw water inlet 3 to the concentrated water outlet 4 are sequentially reduced; the reverse osmosis filter element 8 comprises a central tube 10 and reverse osmosis membranes 11 wound on the central tube 10, each reverse osmosis filter element 8 and the transition channel 9 share the central tube 10, a plurality of water through holes 13 are formed in the central tube 10 at the winding position of the reverse osmosis membranes 11, one end, close to the raw water inlet 3, of the central tube 10 is closed, one end, close to the concentrated water outlet 4, of the central tube 10 is opened and penetrates out of the center of the end cover 2, and the central tube 10 is bonded on the end cover 2 through glue; two ends of the reverse osmosis membrane 11 are folded in half and then wound on the central tube 10, two ends of the reverse osmosis membrane 11 at the parallel folding position are bonded through a sealant, a water inlet flow passage 14 is formed between the inner surfaces of the two ends, and a water production flow passage 15 is formed between the adjacent outer surface and the outer surface of the two ends and the outer wall of the central tube 10; the tail end of the reverse osmosis membrane 11 after winding is adhered to the reverse osmosis membrane roll through a sealant, and the adjacent outer surfaces of the two ends of the reverse osmosis membrane 11 vertical to the folded position and the outer surfaces of the two ends of the reverse osmosis membrane are adhered to the central tube 10 through the sealant; the water inlet flow passage 14 is communicated with the water inlet section 5, the transition passage 9 and the water outlet section 7, and the water production flow passage 15 is communicated with the central pipe 10.
Raw water enters from a raw water inlet 3, one part of the raw water is converted into purified water through a reverse osmosis filter element 8 and enters a central tube 10, the other part of the raw water is concentrated water and enters a next reverse osmosis filter element 8 for filtration treatment, the concentrated water after multiple filtration treatments flows out from a concentrated water outlet 4, and the purified water flows out from a tube cavity of the central tube 10.
The filtration principle of the reverse osmosis filter element is as follows: raw water firstly enters the water inlet channel 14 from one end of the reverse osmosis membrane 11, part of the water is filtered by the reverse osmosis membrane 11 to form purified water, the purified water enters the water production channel 15 and flows into the central tube 10 along the water production channel 15, and the remaining unfiltered concentrated water flows out from the other end face of the reverse osmosis membrane 11 along the water inlet channel 14.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (6)
1. A multi-stage reverse osmosis filter assembly comprises a shell and end covers arranged at two ends of the shell, wherein a raw water inlet is formed in one end cover, a concentrated water outlet is formed in the other end cover, and the multi-stage reverse osmosis filter assembly is characterized in that a shell cavity of the shell is sequentially divided into a water inlet section, a filter section and a water outlet section from the raw water inlet to the concentrated water outlet, the water inlet section is of a structure with a gradually narrowed diameter, the water outlet section is of a structure with a gradually enlarged diameter, at least 2 reverse osmosis filter elements are arranged in the filter section, a transition channel is connected between adjacent reverse osmosis filter elements and is of a structure with a gradually narrowed diameter, the diameters of two ends of the transition channel are respectively larger than or equal to the diameters of the reverse osmosis filter elements connected with the end part of the transition; the reverse osmosis filter core includes center tube and the reverse osmosis membrane of coiling on the center tube, and each reverse osmosis filter core, transition passageway share a center tube, has seted up a plurality of limbers on the center tube of reverse osmosis membrane coiling department, the one end that the nearly raw water of center tube import is sealed, and the one end opening of the nearly dense water export of center tube is worn out the center of end cover.
2. The multistage reverse osmosis filtration assembly of claim 1, wherein two ends of the reverse osmosis membrane are folded in half and then wound on the central tube, two ends of the reverse osmosis membrane at the parallel folding position are bonded by a sealant, a water inlet channel is formed between the inner surfaces of the two ends, and a water production channel is formed between the adjacent outer surface and the outer surface of the two ends and the outer wall of the central tube; the tail end of the reverse osmosis membrane after being wound is adhered to the reverse osmosis membrane roll through a sealant, and the adjacent outer surfaces of the two ends of the reverse osmosis membrane vertical to the folded position and the outer surfaces of the two ends of the reverse osmosis membrane are adhered to the central tube through the sealant; the water inlet flow passage is communicated with the water inlet section, the transition passage and the water outlet section, and the water production flow passage is communicated with the central pipe.
3. The multi-stage reverse osmosis filtration module of claim 1, wherein the reverse osmosis cartridges decrease in length from the raw water inlet to the concentrated water outlet.
4. The multi-stage reverse osmosis filtration module of claim 1, wherein a sealing collar is disposed between the reverse osmosis membrane and an inner wall of the housing.
5. The multi-stage reverse osmosis filtration module of claim 1, wherein the center tube is glued to the end cap.
6. The multi-stage reverse osmosis filtration assembly of claim 1, wherein the housing is a fiberglass housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921678116.5U CN210915441U (en) | 2019-10-09 | 2019-10-09 | Multistage reverse osmosis filtering component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921678116.5U CN210915441U (en) | 2019-10-09 | 2019-10-09 | Multistage reverse osmosis filtering component |
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| Publication Number | Publication Date |
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| CN210915441U true CN210915441U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921678116.5U Active CN210915441U (en) | 2019-10-09 | 2019-10-09 | Multistage reverse osmosis filtering component |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299625A (en) * | 2020-11-03 | 2021-02-02 | 浙江海洋大学 | Sanitary water cleaning and purifying device for ship |
| CN114570077A (en) * | 2022-03-25 | 2022-06-03 | 珠海格力电器股份有限公司 | Stage type filter element and water purifying device |
| CN114618201A (en) * | 2022-03-25 | 2022-06-14 | 珠海格力电器股份有限公司 | Stage type filter element assembly and water purifying device |
| CN114618200A (en) * | 2022-03-25 | 2022-06-14 | 珠海格力电器股份有限公司 | Stage type filter element assembly and water purifying device |
| WO2023179012A1 (en) * | 2022-03-25 | 2023-09-28 | 珠海格力电器股份有限公司 | Stage filter element, stage filter element assembly, water purification device, and water purification system |
-
2019
- 2019-10-09 CN CN201921678116.5U patent/CN210915441U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299625A (en) * | 2020-11-03 | 2021-02-02 | 浙江海洋大学 | Sanitary water cleaning and purifying device for ship |
| CN114570077A (en) * | 2022-03-25 | 2022-06-03 | 珠海格力电器股份有限公司 | Stage type filter element and water purifying device |
| CN114618201A (en) * | 2022-03-25 | 2022-06-14 | 珠海格力电器股份有限公司 | Stage type filter element assembly and water purifying device |
| CN114618200A (en) * | 2022-03-25 | 2022-06-14 | 珠海格力电器股份有限公司 | Stage type filter element assembly and water purifying device |
| WO2023179012A1 (en) * | 2022-03-25 | 2023-09-28 | 珠海格力电器股份有限公司 | Stage filter element, stage filter element assembly, water purification device, and water purification system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multistage reverse osmosis filtering component Effective date of registration: 20210901 Granted publication date: 20200703 Pledgee: Wuxi Branch of China CITIC Bank Co., Ltd Pledgor: JIANGSU WATER ENVIRONMENTAL PROTECTION Co.,Ltd. Registration number: Y2021320010342 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |