CN117160238A - Assembled hollow fiber membrane assembly - Google Patents
Assembled hollow fiber membrane assembly Download PDFInfo
- Publication number
- CN117160238A CN117160238A CN202311447550.3A CN202311447550A CN117160238A CN 117160238 A CN117160238 A CN 117160238A CN 202311447550 A CN202311447550 A CN 202311447550A CN 117160238 A CN117160238 A CN 117160238A
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- Prior art keywords
- sleeve
- hollow fiber
- fiber membrane
- box
- water collecting
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- 239000012528 membrane Substances 0.000 title claims abstract description 59
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000005266 casting Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The invention belongs to the technical field of hollow fiber membrane assemblies, and particularly relates to an assembled hollow fiber membrane assembly, which comprises two fixed frames which are oppositely arranged, wherein a hollow fiber membrane is arranged between the two fixed frames, the upper end of the hollow fiber membrane is encapsulated in one fixed frame, the lower end of the hollow fiber membrane is encapsulated in the other fixed frame, the fixed frames comprise fixed boxes, a plurality of sections of casting boxes are inserted into the fixed boxes, and the sections of casting boxes are communicated through connecting pieces. Compared with the prior art, the invention can conveniently set a sufficient number of hollow fiber membranes by arranging the fixing box, the pouring box and the connecting piece, and fully utilizes the space, thereby achieving the maximum membrane area in the effective space and improving the water outlet efficiency.
Description
Technical Field
The invention belongs to the technical field of hollow fiber membrane components, and particularly relates to an assembled hollow fiber membrane component.
Background
The immersed curtain type hollow fiber membrane component in the prior art is divided into a casting box and a water collecting pipe. Firstly, the film wire is packaged on the casting box by using epoxy resin to play a role of packaging the film wire and fixing, then the casting box is cut, the casting box with the cut end is bonded into the water collecting pipe, the water collecting pipe and the film frame are connected together, and the water collecting pipe and the water circulating channel are reserved. However, the casting box and the water collecting pipe in the immersed curtain type hollow fiber membrane component cannot be increased or decreased according to the requirements.
Chinese patent CN207775020U discloses an immersed hollow fiber membrane component and a petrochemical wastewater treatment system, wherein the hollow fiber membrane component is structurally characterized in that an upper water collecting bin is arranged in an upper frame of a die carrier, a lower water collecting bin is arranged in a lower frame of the die carrier, hollow fiber membranes are longitudinally arranged into a curtain shape, the curtain-shaped hollow fiber membranes are arranged in a plurality of rows from front to back, the upper ends of the hollow fiber membranes are sealed in the upper water collecting bin, and the lower ends of the hollow fiber membranes are sealed in the lower water collecting bin, so that the inner cavities of the upper water collecting bin and the lower water collecting bin are communicated with the hollow fiber membranes; and a lifting hanging piece for hanging by a lifting hook is connected to the top of the die carrier.
In the scheme, the volume of the immersed hollow fiber membrane component is fixed, and enough hollow fiber membranes cannot be conveniently arranged according to needs, so that the water outlet efficiency is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an assembled hollow fiber membrane assembly to solve the problems that the volume of the hollow fiber membrane assembly is fixed, enough hollow fiber membranes can not be conveniently arranged according to the needs, and the water outlet efficiency is affected.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the assembled hollow fiber membrane assembly comprises two fixed frames which are oppositely arranged, a hollow fiber membrane is arranged between the two fixed frames, the upper end of the hollow fiber membrane is packaged in one fixed frame, the lower end of the hollow fiber membrane is packaged in the other fixed frame, the fixed frames comprise fixed boxes, a plurality of sections of pouring boxes are inserted in the fixed boxes, and the sections of pouring boxes are communicated through connecting pieces.
Through the setting of fixed box, pouring box and connecting piece, can conveniently set up the hollow fiber membrane of sufficient quantity, make full use of space to reach the biggest membrane area in effectual space, the biggest water yield promptly improves water efficiency.
Preferably, a supporting pipe is arranged between the two fixing frames, so that the supporting strength of the two fixing frames is ensured.
Preferably, the casting box comprises a side box and a middle box; the connecting piece comprises a frame and a connecting frame, the side boxes are connected with the middle boxes through the connecting frame, and the two adjacent middle boxes are connected through the connecting frame; the end parts of the side boxes are spliced and provided with frames, and supporting pipes are arranged in the frames and the connecting frames. When the hollow fiber membrane needs to be increased or decreased, the middle box arranged between the two side boxes is increased or decreased, so that the operation is convenient.
Preferably, the side edge box, the middle box and the bottom surface of the frame are provided with raised lines, and the fixed box is internally provided with a sliding groove in cooperation with the raised lines. The sliding of side box, middle box and frame in fixed box is guaranteed, and convenient sealed, convenient setting of assembling.
Preferably, one end of the side box is provided with a water collecting pipe I; the frame comprises a first sleeve, a second sleeve is arranged on the side surface of the first sleeve, and the center line of the first sleeve is perpendicular to the center line of the second sleeve; the first water collecting pipe is inserted into the first sleeve; the bottom surface of the sleeve and the bottom surface of the side box are spliced by the splicing component; the supporting tube is arranged in the second sleeve and is communicated with the first water collecting tube. The water filtered by the hollow fiber membrane in the side box flows into the first sleeve through the water collecting pipe, so that the water can be conveniently collected by an external pipeline. The first sleeve is connected with the side box in a plugging manner, so that the assembly is convenient.
Preferably, the first water collecting pipe is provided with a first through hole; the side wall of the first sleeve is provided with a second through hole; the second sleeve is internally provided with a first insertion pipe in a matched manner with the second through hole, and the supporting pipe is inserted outside the first insertion pipe. Through the arrangement of the first through hole and the second through hole, the supporting tube can also play a role in communication, so that the circulation of water in the two fixing frames is facilitated, and the collection is facilitated. And the first cannula is arranged, so that the stability and firmness of the arrangement of the support tube are ensured.
Preferably, the other end of the side box is provided with a water collecting pipe II; the connecting frame comprises a sleeve III; the side walls at two ends of the middle box are respectively provided with a water collecting pipe III, and the lengths of the water collecting pipes II and the water collecting pipes III are equal to half of the lengths of the sleeves III; the water collecting pipe II and the water collecting pipe III can be inserted into the sleeve pipe III; the side box bottom surface and the middle box bottom surface are spliced by the splicing component. The connection stability of the side edge box, the middle box and the connecting frame is ensured.
Preferably, a sleeve IV is arranged on the three side walls of the sleeve, and a through hole III is arranged on the three side walls of the sleeve; a second cannula is arranged in the fourth cannula in a matched manner with the third through hole, and a supporting tube is inserted outside the second cannula; the second water collecting pipe and the third water collecting pipe are provided with notches in cooperation with the third through hole. And the second cannula is arranged, so that the stability and firmness of the support tube are ensured. The notch and the through hole III are arranged, and the two fixing frames can be communicated through the supporting tube, so that water filtered by the hollow fiber membrane is conveniently collected.
Preferably, the second outer wall of the sleeve and the outer wall of the side box are connected through a buckle component; the four side walls of the sleeve are connected with the outer wall of the side box through a buckle component; the four side walls of the sleeve are connected with the outer wall of the middle box through a buckle component. The connection stability is ensured, and the assembly is convenient.
Preferably, the plug assembly comprises a slot and a plug rod; the buckle assembly comprises a clamping groove and a buckle.
The beneficial effects of the invention are as follows:
through the setting of fixed box, pouring box and connecting piece, can conveniently set up the hollow fiber membrane of sufficient quantity as required, make full use of space to reach the biggest membrane area in effectual space, the biggest water yield promptly, improve water efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of an exploded structure of a fixing frame according to the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a frame of the present invention;
FIG. 5 is an enlarged schematic view of portion B of FIG. 2;
fig. 6 is a schematic cross-sectional view of a connecting frame of the present invention.
In the figure: 1. a hollow fiber membrane; 2. a fixed box; 3. a support tube; 4. a side case; 5. a middle box; 6. a frame; 7. a connection frame; 8. a water collecting pipe I; 9. a water collecting pipe II; 10. a water collecting pipe III; 11. a convex strip; 201. a chute; 601. a first sleeve; 602. a second sleeve; 603. a second through hole; 604. a first cannula; 701. a third sleeve; 702. a fourth sleeve; 703. a third through hole; 704. a second cannula; 801. and a first through hole.
Detailed Description
The present invention is specifically described and illustrated below with reference to examples.
Example 1
As shown in fig. 1, the assembled hollow fiber membrane module comprises two fixed frames which are oppositely arranged, a hollow fiber membrane 1 is arranged between the two fixed frames, the upper end of the hollow fiber membrane 1 is encapsulated in one fixed frame, the lower end of the hollow fiber membrane 1 is encapsulated in the other fixed frame, the fixed frame comprises a fixed box 2, a plurality of sections of casting boxes are inserted into the fixed box 2, and the sections of casting boxes are communicated through connecting pieces.
And a supporting pipe 3 is arranged between the two fixed frames, so that the supporting strength of the two fixed frames is ensured.
The pouring box comprises a side box 4 and a middle box 5; the connecting piece comprises a frame 6 and a connecting frame 7, the side boxes 4 and the middle boxes 5 are connected through the connecting frame 7, and two adjacent middle boxes 5 are connected through the connecting frame 7; the end parts of the side edge boxes 4 are inserted and provided with side frames 6, and support pipes 3 are arranged in the side frames 6 and the connecting frames 7.
When the hollow fiber membrane needs to be increased or decreased, the middle box 5 arranged between the two side boxes 4 is increased or decreased, so that the operation is convenient. Through the setting of fixed box 2, pouring box and connecting piece, can conveniently set up the hollow fiber membrane of sufficient quantity, make full use of space to reach the biggest membrane area in effectual space, the biggest water yield promptly improves water yield efficiency.
As shown in fig. 2-4, the bottom surfaces of the side case 4, the middle case 5 and the frame 6 are provided with raised strips 11, and the fixed case 2 is internally provided with a chute 201 in cooperation with the raised strips 11. The sliding of the side box 4, the middle box 5 and the frame 6 in the fixed box 2 is guaranteed, the sealing is convenient, and the assembling and the setting are convenient.
One end of the side box 4 is provided with a water collecting pipe I8; the frame 6 comprises a first sleeve 601, a second sleeve 602 is arranged on the side face of the first sleeve 601, and the center line of the first sleeve 601 and the center line of the second sleeve 602 are arranged vertically; the water collecting pipe I8 is inserted into the sleeve I601; the bottom surface of the first sleeve 601 is spliced with the bottom surface of the side box 4 through a splicing component; the support tube 3 is arranged in the second sleeve 602 and is communicated with the first water collecting tube 8. The water filtered by the hollow fiber membrane in the side box 4 flows into the sleeve I601 through the water collecting pipe I8, so that the water can be conveniently collected by an external pipeline. The first sleeve 601 is connected with the side box 4 in a plugging manner, so that the assembly is convenient.
A first through hole 801 is formed in the first water collecting pipe 8; the side wall of the first sleeve 601 is provided with a second through hole 603; a first cannula 604 is arranged in the second cannula 602 in cooperation with a second through hole 603, and the support tube 3 is inserted outside the first cannula 604. Through the arrangement of the first through hole 801 and the second through hole 603, the supporting tube 3 can also play a role in communication, so that the circulation of water in the two fixing frames is facilitated, and the collection is facilitated. The first cannula 604 is arranged to ensure the stability and firmness of the arrangement of the support tube 3.
As shown in fig. 2, 5 and 6, the other end of the side box 4 is provided with a water collecting pipe II 9; the connecting frame 7 comprises a sleeve three 701; the side walls of the two ends of the middle box 5 are respectively provided with a water collecting pipe III 10, the length of the water collecting pipe II 9 and the water collecting pipe III 10 is equal to half of the length of the sleeve III 701, and the water collecting pipe II 9 and the water collecting pipe III 10 can be inserted into the sleeve III 701; the bottom surfaces of the side boxes 4 and the middle box 5 are spliced by a splicing component. The connection stability of the side box 4, the middle box 5 and the connecting frame 7 is ensured.
A fourth sleeve 702 is arranged on the side wall of the third sleeve 701, and a third through hole 703 is formed on the side wall of the third sleeve 701; a second cannula 704 is arranged in the fourth cannula 702 in cooperation with the third through hole 703, and the support tube 3 is inserted outside the second cannula 704; the end parts of the water collecting pipe II 9 and the water collecting pipe III 10 are matched with the through hole III 703 to form a notch. The second cannula 704 is arranged to ensure the stability and firmness of the arrangement of the support tube 3. The notch and the through hole III 703 are arranged, so that two fixing frames can be communicated through the supporting tube 3, and water filtered by the hollow fiber membrane is conveniently collected.
The outer wall of the second sleeve 602 is connected with the outer wall of the side box 4 through a buckle component; the side wall of the fourth sleeve 702 is connected with the outer wall of the side box 4 through a buckle component; the side wall of the fourth sleeve 702 is connected with the outer wall of the middle box 5 through a clamping assembly. The plug-in component comprises a slot and a plug-in rod; the buckle subassembly includes draw-in groove and buckle, guarantees the stability of connection, and conveniently assembles.
The support tube 3 is made of glass fiber reinforced plastic, and the support tube 3 of glass fiber reinforced plastic has certain support strength and anti-corrosion function and can ensure the circulation of water.
The side box 4, the water collecting pipe I8 and the water collecting pipe II 9 are integrally formed, the middle box 5 and the water collecting pipe III 10 are integrally formed, and the casting is performed by a one-step method; the one-step casting molding omits the step of head cutting and re-bonding, thereby reducing the complicated manufacturing process, reducing manpower and material resources and lowering the cost. And the adhesive can be reduced by casting through a one-step method, so that the quality hidden trouble such as water leakage caused by poor adhesive can be avoided.
Although the present invention has been described in detail by way of example with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions for embodiments of the present invention may be made by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications and substitutions are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides an pin-connected panel hollow fiber membrane module, includes two fixed frames that set up relatively, sets up hollow fiber membrane (1) between two fixed frames, and hollow fiber membrane (1) upper end encapsulation is in a fixed frame, and hollow fiber membrane (1) lower extreme encapsulation is in another fixed frame, its characterized in that, fixed frame includes fixed box (2), and fixed box (2) interpolation is equipped with multistage pouring box, and multistage pouring box passes through the connecting piece intercommunication.
2. The split hollow fiber membrane module according to claim 1, wherein a support tube (3) is provided between the two fixing frames.
3. The split hollow fiber membrane module according to claim 2, wherein the casting box comprises a side box (4) and a middle box (5); the connecting piece comprises a frame (6) and a connecting frame (7), the side edge boxes (4) and the middle boxes (5) are connected through the connecting frame (7), and the two adjacent middle boxes (5) are connected through the connecting frame (7); the end parts of the side boxes (4) are inserted and provided with frames (6), and supporting pipes (3) are arranged in the frames (6) and the connecting frames (7).
4. A split hollow fiber membrane module according to claim 3, wherein the side boxes (4), the middle box (5) and the bottom surface of the frame (6) are provided with raised strips (11), and the fixed box (2) is internally provided with sliding grooves (201) in combination with the raised strips (11).
5. A split hollow fiber membrane module according to claim 3, wherein a water collecting pipe I (8) is arranged at one end of the side box (4); the frame (6) comprises a first sleeve (601), a second sleeve (602) is arranged on the side face of the first sleeve (601), and the central lines of the first sleeve (601) and the second sleeve (602) are vertically arranged; the water collecting pipe I (8) is inserted into the sleeve I (601); the bottom surface of the first sleeve (601) is spliced with the bottom surface of the side box (4) through a splicing component; the supporting tube (3) is arranged in the second sleeve (602) and is communicated with the first water collecting tube (8).
6. The split hollow fiber membrane module according to claim 5, wherein the water collecting pipe I (8) is provided with a through hole I (801); the side wall of the first sleeve (601) is provided with a second through hole (603); the second sleeve (602) is internally provided with a first insertion pipe (604) matched with the second through hole (603), and the support pipe (3) is inserted outside the first insertion pipe (604).
7. A split hollow fiber membrane module according to claim 3, wherein the other end of the side box (4) is provided with a water collecting pipe II (9); the connecting frame (7) comprises a sleeve three (701); the side walls at two ends of the middle box (5) are respectively provided with a water collecting pipe III (10), the length of the water collecting pipe II (9) and the length of the water collecting pipe III (10) are equal to half of the length of the sleeve III (701), and the water collecting pipe II (9) and the water collecting pipe III (10) can be inserted into the sleeve III (701); the bottom surfaces of the side boxes (4) and the middle box (5) are spliced by a splicing component.
8. The split hollow fiber membrane module according to claim 7, wherein a fourth sleeve (702) is provided on a side wall of the third sleeve (701), and a third through hole (703) is provided on a side wall of the third sleeve (701); a second cannula (704) is arranged in the fourth cannula (702) in cooperation with the third through hole (703), and the support tube (3) is inserted outside the second cannula (704); the end parts of the water collecting pipe II (9) and the water collecting pipe III (10) are matched with the through hole III (703) to form a notch.
9. The assembled hollow fiber membrane module according to claim 8, wherein the outer wall of the second sleeve (602) and the outer wall of the side box (4) are connected through a buckle assembly; the side wall of the fourth sleeve (702) is connected with the outer wall of the side box (4) through a buckle component; the side wall of the fourth sleeve (702) is connected with the outer wall of the middle box (5) through a buckle component.
10. The split hollow fiber membrane module according to claim 9 wherein the plug assembly comprises a socket and a plug rod; the buckle assembly comprises a clamping groove and a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311447550.3A CN117160238B (en) | 2023-11-02 | 2023-11-02 | Assembled hollow fiber membrane assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311447550.3A CN117160238B (en) | 2023-11-02 | 2023-11-02 | Assembled hollow fiber membrane assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117160238A true CN117160238A (en) | 2023-12-05 |
| CN117160238B CN117160238B (en) | 2024-01-26 |
Family
ID=88939795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311447550.3A Active CN117160238B (en) | 2023-11-02 | 2023-11-02 | Assembled hollow fiber membrane assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117160238B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380316A (en) * | 2011-09-22 | 2012-03-21 | 张慧春 | Horizontal pressure leaching composite membrane filtering system |
| CN202762317U (en) * | 2012-06-28 | 2013-03-06 | 北京桑德环境工程有限公司 | Curtain-membrane water treatment component and tank-type water treatment unit |
| CN203694923U (en) * | 2014-02-21 | 2014-07-09 | 国家海洋局天津海水淡化与综合利用研究所 | Sealing head for curtain type hollow fiber membrane module |
| CN203990322U (en) * | 2014-08-06 | 2014-12-10 | 北京碧水源膜科技有限公司 | A kind of hollow fiber curtain type membrane component film frame adhering device |
| CN204134481U (en) * | 2014-09-02 | 2015-02-04 | 中山朗清膜业有限公司 | A kind of immersion fiber reinforcement type hollow fiber film assembly |
| US20160030889A1 (en) * | 2013-12-23 | 2016-02-04 | Econity Co., Ltd. | Cartridge-Type Hollow Fiber Membrane Module Comprising Submerged Hollow Fiber Membrane Unit Module with Free End and Submerged Apparatus for Water Treatment Comprising Air Diffuser Apparatus Capable Of Intermittent/Continuous Aeration and Its Aeration Method |
| CN207121467U (en) * | 2017-08-24 | 2018-03-20 | 联合环境技术（厦门）有限公司 | Spliced curtain type film assembly |
| CN210656327U (en) * | 2019-07-30 | 2020-06-02 | 三达膜科技（厦门）有限公司 | Support tubular curtain formula MBR membrane module |
| CN211636039U (en) * | 2019-12-27 | 2020-10-09 | 江苏艾乐膜科技有限公司 | Novel curtain type hollow fiber membrane component |
| CN213865502U (en) * | 2020-09-28 | 2021-08-03 | 宁波水艺膜科技发展有限公司 | Hollow fiber membrane element |
| CN215654726U (en) * | 2021-08-18 | 2022-01-28 | 山东招金膜天股份有限公司 | Submerged membrane module |
| CN219158859U (en) * | 2022-03-02 | 2023-06-09 | 上海美暖节能科技有限公司 | Coiled pipe type capillary heat-resistant window curtain |
-
2023
- 2023-11-02 CN CN202311447550.3A patent/CN117160238B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380316A (en) * | 2011-09-22 | 2012-03-21 | 张慧春 | Horizontal pressure leaching composite membrane filtering system |
| CN202762317U (en) * | 2012-06-28 | 2013-03-06 | 北京桑德环境工程有限公司 | Curtain-membrane water treatment component and tank-type water treatment unit |
| US20160030889A1 (en) * | 2013-12-23 | 2016-02-04 | Econity Co., Ltd. | Cartridge-Type Hollow Fiber Membrane Module Comprising Submerged Hollow Fiber Membrane Unit Module with Free End and Submerged Apparatus for Water Treatment Comprising Air Diffuser Apparatus Capable Of Intermittent/Continuous Aeration and Its Aeration Method |
| CN203694923U (en) * | 2014-02-21 | 2014-07-09 | 国家海洋局天津海水淡化与综合利用研究所 | Sealing head for curtain type hollow fiber membrane module |
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| CN204134481U (en) * | 2014-09-02 | 2015-02-04 | 中山朗清膜业有限公司 | A kind of immersion fiber reinforcement type hollow fiber film assembly |
| CN207121467U (en) * | 2017-08-24 | 2018-03-20 | 联合环境技术（厦门）有限公司 | Spliced curtain type film assembly |
| CN210656327U (en) * | 2019-07-30 | 2020-06-02 | 三达膜科技（厦门）有限公司 | Support tubular curtain formula MBR membrane module |
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| CN215654726U (en) * | 2021-08-18 | 2022-01-28 | 山东招金膜天股份有限公司 | Submerged membrane module |
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| Publication number | Publication date |
|---|---|
| CN117160238B (en) | 2024-01-26 |
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