Submerged membrane separator
The design of flexible water production branch pipes and detachable adapters solves the problem of easy damage to the water production outlet during the disassembly of submerged membrane separators, thus reducing operating costs.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Filing Date
- 2025-12-26
- Publication Date
- 2026-07-09
AI Technical Summary
When disassembling the membrane module, the product water outlet of the existing submerged membrane separator is easily damaged, resulting in the scrapping of the entire membrane module and increasing the operating cost.
The design incorporates flexible permeate branch pipes and detachable adapters. By detachably connecting the flexible permeate branch pipes to the adapters, the permeate branch pipes are prevented from being disassembled along with the membrane module, thus reducing the likelihood of damage to the permeate outlet.
It effectively reduces the chance of damage to the product water outlet and lowers the operating cost of the submerged membrane separator.
Smart Images
Figure CN2025146041_09072026_PF_FP_ABST
Abstract
Description
Submerged membrane separator
[0001] This application claims priority to Chinese Patent Application No. 202411994243.1, filed with the Chinese Patent Office on December 31, 2024, entitled "Immersed Membrane Separator", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of microfiltration or ultrafiltration membrane separation technology, and in particular to an immersion membrane separator. Background Technology
[0003] The submerged membrane separator is the core component of a submerged membrane filtration (SMF) system. It includes membrane modules, permeate branch pipes, and permeate main pipes, and is placed in the membrane tank for use. During operation, the membrane modules need to be disassembled periodically for inspection, cleaning, and other operations.
[0004] Currently, the process of disassembling the membrane module in submerged membrane separators on the market can easily damage the product water outlet of the membrane module. Moreover, since the membrane module is a complete assembly, once the product water outlet is damaged, the entire membrane module must be replaced, resulting in high operating costs for submerged membrane separators.
[0005] Therefore, how to reduce the probability of damage to the water production outlet is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0006] To address the aforementioned technical problems, this application provides a submerged membrane separator, comprising membrane modules, a first adapter, permeate branch pipes, and a permeate main pipe. Multiple rows of membrane modules are arranged sequentially along a front-to-back direction. Each row of membrane modules includes a membrane element and an upper water collection pipe located above the membrane element. Each row of membrane modules has a permeate outlet on its upper water collection pipe. Multiple interfaces are sequentially spaced along the length of the permeate main pipe. A first adapter connects each permeate outlet to a first port of each permeate branch pipe. The first adapter is detachably connected to at least one of the permeate outlet and the first port of the permeate branch pipe. The second port of each permeate branch pipe is connected to one of the interfaces.
[0007] In one embodiment of a submerged membrane separator, the permeate manifold is arranged on the left or right side of the multi-row membrane assembly and extends in the front-to-back direction, and is lower than the permeate outlet.
[0008] In one embodiment of a submerged membrane separator, the first port of the permeate branch pipe and the permeate outlet are arranged facing left or right, and the two ends of the first adapter are respectively inserted into the first port of the permeate branch pipe and the permeate outlet along the left and right directions, wherein the permeate branch pipe is a flexible pipe.
[0009] In one embodiment of a submerged membrane separator, the permeate branch pipe is a flexible pipe, one end of the first adapter passes through the first port and is inserted into the permeate branch pipe, and a detachable first clamp is provided outside the permeate branch pipe to tighten the permeate branch pipe and the first adapter.
[0010] In one embodiment of the submerged membrane separator, one end of the first adapter passes through the product water outlet and is inserted into the upper water collection pipe, and a sealing ring is provided between the first adapter and the upper water collection pipe for sealing.
[0011] One embodiment of a submerged membrane separator includes a second adapter, with each port of the main permeate pipe connected to one of the second adapters, and each of the second adapters being detachably connected to a second port of a branch permeate pipe.
[0012] In one embodiment of a submerged membrane separator, the permeate branch pipe is a flexible pipe, one end of the second adapter passes through the second port and is inserted into the corresponding permeate branch pipe, and a detachable second clamp is provided outside the permeate branch pipe to tighten the permeate branch pipe and the second adapter.
[0013] One embodiment of a submerged membrane separator includes a support and a pressing member. The support has multiple slots arranged sequentially in a front-to-back direction. Each row of membrane modules is inserted into one of the slots. The pressing member presses against the multiple rows of membrane modules. The pressing member is detachably connected to the support or to the side wall of the membrane tank where the submerged membrane separator is located. Each slot has an upper opening. After the pressing member is removed, the membrane module can move upward and leave the slot through the upper opening.
[0014] In one embodiment of a submerged membrane separator, each slot includes an upper slot and a lower slot aligned vertically, the upper slot being located on the upper part of the support, the lower slot being located on the lower part of the support, the support including a support beam at least partially located on the bottom side of the lower slot to support the membrane assembly within the slot, and the upper slot being lower than the upper water collection pipe.
[0015] One embodiment of a submerged membrane separator includes an aeration assembly, which includes a collector frame and an aeration pipeline. The collector frame is fixed to the lower part of the support frame and has a flow channel inside. The collector frame has an air source interface (181a) for connecting to an external air source. The aeration pipeline is located below the membrane assembly and communicates with the internal flow channel of the collector frame. The aeration pipeline (182) has aeration holes.
[0016] The submerged membrane separator provided in this application, when disassembling the membrane module, has a first adapter connected between each permeate outlet of the membrane module and the first port of each permeate branch pipe. The first adapter is detachably connected to at least one of the permeate outlet and the first port of the permeate branch pipe. When disassembling the membrane module, the connection between the membrane module and the permeate branch pipe can be disconnected by separating the first adapter from the first port of the permeate branch pipe. In this case, the membrane module and the first adapter are disassembled together. Alternatively, the connection between the membrane module and the first adapter can be disconnected by separating the first adapter from the permeate outlet. In this case, the membrane module is disassembled separately. Both cases can disconnect the connection between the membrane module and the permeate branch pipe, avoiding the membrane module and the permeate branch pipe being disassembled together. If the membrane module and the permeate branch pipe are disassembled together, the permeate branch pipe is relatively long and therefore easily touched by the operator. Moreover, since one end of the permeate branch pipe is connected to the permeate outlet of the membrane module, if the operator accidentally touches the permeate branch pipe, it can easily damage the side wall of the permeate outlet, rendering the entire membrane module unusable. In contrast, the permeate branch pipe of this application is not disassembled with the membrane module, thus solving the problem of easy damage to the permeate outlet, reducing the probability of damage to the permeate outlet, and thereby reducing the operating cost of the submerged membrane separator. Attached Figure Description
[0017] Figure 1 is a perspective view of an embodiment of the water production device of the submersible membrane filtration system provided in this application;
[0018] Figure 2 is a partial enlarged view of the slot location in Figure 1;
[0019] Figure 3 is a partial enlarged view of the slot location in Figure 1;
[0020] Figure 4 is a partial enlarged view of the connection position between the water collection pipe and the water production branch pipe in Figure 1;
[0021] Figure 5 is a partial enlarged view of the connection position between the water supply branch pipe and the water supply main pipe in Figure 1;
[0022] Figure 6 is a partial side view of Figure 1;
[0023] Figure 7 is a cross-sectional view of the first adapter in Figure 6;
[0024] The reference numerals in the attached drawings are explained as follows: 11 Membrane module, 111 Membrane element, 112 Upper water collection pipe, A Permeate outlet, 113 Lower water collection pipe, 114 Connecting pipe, 12 First adapter, B First limiting surface, C Second limiting surface, 13 Permeate branch pipe, 14 Permeate main pipe, 14a Interface, 15 Second adapter, 16 Support, 161 Upper slot, 162 Lower slot, 163 Support beam, 17 Pressing component, 18 Aeration assembly, 181 Collector frame, 181a Air source interface, 182 Aeration pipeline, 19 First clamp, 20 Second clamp. Detailed Implementation
[0025] To enable those skilled in the art to better understand the technical solution of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] As shown in Figure 1, the submerged membrane separator provided in this application includes a membrane module 11, a first adapter 12, a product water branch pipe 13, and a product water main pipe 14.
[0027] The multi-row membrane modules 11 are arranged sequentially. In the description of this application, the arrangement direction of the multi-row membrane modules 11 is the front-back direction. In the description of this application, the up-down direction refers to the direction perpendicular to the front-back direction, and the left-right direction refers to the direction perpendicular to both the front-back direction and the up-down direction.
[0028] As shown in Figure 6, each row of membrane modules 11 includes a membrane element 111 and an upper water collection pipe 112 located above the membrane element 111. In the illustrated embodiment, each row of membrane modules 11 also includes a lower water collection pipe 113 located below the membrane element 111 and a connecting pipe 114 connecting the upper water collection pipe 112 and the lower water collection pipe 113. The upper water collection pipe 112 and the lower water collection pipe 113 extend in the left-right direction, and the connecting pipe 114 extends in the up-down direction. This application does not limit the type of membrane module 11 or the type of membrane element 111. For example, common curtain membrane modules, bundle membrane modules, plate and frame membrane modules, and column membrane modules are all acceptable. For example, common hollow fiber membrane elements, flat sheet membrane elements, and tubular membrane elements are all acceptable.
[0029] As shown in Figure 6, each row of membrane modules 11 has a product water outlet A on its upper water collection pipe 112. In the illustrated embodiment, the upper water collection pipe 112 extends in the left-right direction, and each end of the upper water collection pipe 112 has a product water outlet A. Alternatively, each row of membrane modules 11 may have only one product water outlet A on its upper water collection pipe 112.
[0030] As shown in Figure 1, multiple interfaces 14a are arranged sequentially at intervals along the length of the permeate main pipe 14. In the illustrated embodiment, the permeate main pipe 14 extends in the front-to-back direction, and one permeate main pipe 14 is provided on each of the left and right sides of the multi-row membrane module 11, for a total of two permeate main pipes 14. Alternatively, the submerged membrane separator may also be provided with only one permeate main pipe 14.
[0031] As shown in Figure 1, a first adapter 12 is connected between each water outlet A and the first port of each water branch pipe 13. The first adapter 12 is detachably connected to at least one of the first port of the water branch pipe 13 and the water outlet A. Specifically, the first adapter 12 may be detachably connected to the first port of the water branch pipe 13, while being fixedly connected to or integrated with the water outlet A; or the first adapter 12 may be detachably connected to the water outlet A, while being fixedly connected to or integrated with the first port of the water branch pipe 13; or the first adapter 12 may be detachably connected to the water outlet A and also detachably connected to the first port of the water branch pipe 13.
[0032] The second port of each water production branch pipe 13 is connected to an interface 14a on the main water production pipe 14. In the illustrated embodiment, the water production branch pipe 13 connected to the water production outlet A at the left end is connected to the corresponding interface 14a on the main water production pipe 14 on the left side, and the water production branch pipe 13 connected to the water production outlet A at the right end is connected to the corresponding interface 14a on the main water production pipe 14 on the right side. The first port of the water production branch pipe 13 is higher than the second port.
[0033] During operation, the submerged membrane separator is located inside the membrane tank, and the water to be treated is introduced into the membrane tank. Impurities in the water are trapped inside the membrane tank by the membrane element 111, while the permeate flows through the micropores of the membrane element 111 via the upper water collection pipe 112, the permeate branch pipe 13, and the permeate main pipe 14 to the permeate tank. The membrane module 11 needs to be disassembled periodically for cleaning, maintenance, and other operations.
[0034] Previously, when disassembling the membrane module 11, the permeate branch pipe 13 would be removed along with the membrane module 11. After removal, the permeate branch pipe 13 was relatively long and therefore easily touched by the operator. Moreover, since one end of the permeate branch pipe 13 was connected to the permeate outlet A of the membrane module 11, if the operator accidentally touched the permeate branch pipe 13, it could easily damage the side wall of the permeate outlet A, resulting in a high probability of damage to the permeate outlet A, or even rendering the entire membrane module 11 unusable.
[0035] The submerged membrane separator provided in this application allows for the disconnection of the membrane module 11 and the permeate branch pipe 13 by separating the first adapter 12 from the first port of the permeate branch pipe 13 during disassembly. In this case, the membrane module 11 and the first adapter 12 are disassembled together, while the permeate branch pipe 13 remains intact. This solves the problem of easy damage to the permeate outlet A, reduces the probability of damage to the permeate outlet A, and consequently lowers the operating cost of the submerged membrane separator. It should be noted that because the length of the first adapter 12 is much shorter than the length of the permeate branch pipe 13, it is less likely to be touched by the operator. Furthermore, the first adapter 12 does not have bends like the permeate branch pipe 13, so even if it is touched by the operator, it will not generate a large prying force on the side wall of the permeate outlet A, thus preventing damage to the side wall of the permeate outlet A.
[0036] Alternatively, when disassembling the membrane module 11, the connection between the membrane module 11 and the first adapter 12 can be disconnected by separating the first adapter 12 and the product water outlet A. In this case, the membrane module 11 is disassembled separately, while the product water branch pipe 13 and the first adapter 12 are not disassembled. This solves the problem of easy damage to the product water outlet A, reduces the probability of damage to the product water outlet A, and thus reduces the operating cost of the submerged membrane separator.
[0037] In some embodiments, as shown in FIG1, the submerged membrane separator includes a support 16 and a pressing member 17. The support 16 is provided with multiple slots arranged sequentially in the front-to-back direction. Each membrane module 11 is inserted into a slot. The pressing member 17 presses against the membrane module 11. The pressing member 17 is detachably connected to the support 16 or the side wall of the membrane tank where the submerged membrane separator is located. Each slot is provided with an upper slot opening. After the pressing member 17 is removed, the membrane module 11 can move upward and leave the slot from the upper slot opening. With this design, when disassembling the membrane module 11, first remove the pressure member 17 and disconnect the membrane module 11 from the permeate branch pipe 13. Then, move the membrane module 11 upwards so that it leaves the slot from the upper groove. When assembling the membrane module 11, first move the membrane module 11 downwards so that it is inserted into the slot from the upper groove. Then, reassemble the pressure member 17 and restore the connection between the membrane module 11 and the permeate branch pipe 13. The disassembly and assembly process of the membrane module 11 does not require the use of hoisting equipment and can be completed manually, avoiding the problem of damage to the membrane module 11 caused by using hoisting equipment in narrow spaces. In the illustrated embodiment, the pressure member 17 is a beam structure extending in the front-to-back direction. The front and rear ends of the beam structure are respectively provided with connection holes and are connected to the bracket 16 by threaded fasteners. In actual implementation, it is not limited to this, as long as it can be detachably connected to the bracket 16 or the side wall of the membrane tank where the submerged membrane separator is located and can press against the top of each row of membrane modules 11.
[0038] In some embodiments, the permeate main pipe 14 is arranged on the left or right side of the membrane module 11 and extends in the front-to-back direction, and is lower than the permeate outlet A, preferably 200mm-400mm lower. For example, in the illustrated embodiment, two permeate main pipes 14 are provided, both extending in the front-to-back direction. One permeate main pipe 14 is arranged on the left side of the membrane module 11 and is lower than the left-end permeate outlet A, and the other permeate main pipe 14 is arranged on the right side of the membrane module 11 and is lower than the right-end permeate outlet A. This design facilitates the neat arrangement of the permeate branch pipes 13 and ensures that the permeate main pipe 14 does not interfere with the upward movement of the membrane module 11.
[0039] In some embodiments, the first port of the permeate branch pipe 13 is positioned to the left or right, and the permeate outlet A is also positioned to the left or right. The two ends of the first adapter 12 are respectively inserted into the first port of the corresponding permeate branch pipe 13 and the permeate outlet A along the left-right direction. Furthermore, the permeate branch pipe 13 is a flexible pipe. With this design, when disassembling the membrane module 11, the connection between the first port of the permeate branch pipe 13 and the first adapter 12 can be disconnected by pulling the permeate branch pipe 13 horizontally to the left or right. Thus, disconnecting the first port of the permeate branch pipe 13 from the first adapter 12 does not require the membrane module 11 to move upwards, thereby shortening the total upward distance the membrane module 11 needs to move during disassembly. This eliminates the need to reserve a large space above the membrane tank, contributing to the compactness of the entire water treatment equipment.
[0040] In some embodiments, as shown in Figure 4, the permeate branch pipe 13 is a flexible pipe. One end of the first adapter 12 passes through the first port and is inserted into the permeate branch pipe 13. A detachable first clamp 19 is provided outside the permeate branch pipe 13 to tighten the permeate branch pipe 13 and the first adapter 12. With this design, under the tightening action of the first clamp 19, the flexible permeate branch pipe 13 and the first adapter 12 are in close contact to achieve a seal, preventing leakage at the connection between the permeate branch pipe 13 and the first adapter 12. Furthermore, after removing the first clamp 19, the first adapter 12 can be easily removed from the permeate branch pipe 13, thereby facilitating the disassembly of the membrane module 11. Specifically, in the illustrated embodiment, the two ends of the first clamp 19 are connected by threaded fasteners, and the first clamp 19 is tightened or loosened by screwing the threaded fasteners. Specifically, in the illustrated embodiment, as shown in Figure 7, the outer circumferential surface of the portion of the first adapter 12 inserted into the water production branch pipe 13 is provided with a first cylindrical surface, a conical surface, and a second cylindrical surface in sequence. The small-diameter end of the conical surface is close to the first cylindrical surface, and the large-diameter end of the conical surface is close to the second cylindrical surface. The diameter of the large-diameter end of the conical surface is larger than the diameter of both the first and second cylindrical surfaces. This can improve the connection stability and sealing of the water production branch pipe 13 and the first adapter 12.
[0041] In some embodiments, the other end of the first adapter 12 passes through the water outlet A and is inserted into the upper water collection pipe 112. A sealing ring is provided between the first adapter 12 and the upper water collection pipe 112 for sealing, preventing leakage at the connection between the first adapter 12 and the upper water collection pipe 112. At the same time, the sealing ring also plays a role in reducing friction, preventing damage to the water outlet A when assembling the first adapter 12 and the upper water collection pipe 112. Specifically, in the illustrated embodiment, as shown in Figure 6, the upper water collection pipe 112 is provided with a cylindrical hole 112a, one end of which is the water outlet A. As shown in Figure 7, the outer circumferential surface of the portion of the first adapter 12 inserted into the upper water collection pipe 112 is a cylindrical surface adapted to the cylindrical hole 112a, and the cylindrical surface is provided with three sealing grooves for installing the sealing ring.
[0042] In some embodiments, as shown in FIG7, an intermediate section is provided between the portion of the first adapter 12 inserted into the upper water collection pipe 112 and the portion inserted into the water production branch pipe 13. The two ends of the intermediate section are respectively provided with a first limiting surface B and a second limiting surface C. The first limiting surface B abuts against one end face of the upper water collection pipe 112 to limit the depth of the first adapter 12 inserted into the upper water collection pipe 112, and the second limiting surface C abuts against one end face of the water production branch pipe 13 to limit the depth of the first adapter 12 inserted into the water production branch pipe 13.
[0043] In some embodiments, as shown in Figure 5, the submerged membrane separator includes a second adapter 15. Each port 14a of the permeate main pipe 14 is connected to a second adapter 15, and each second adapter 15 is detachably connected to the second port of a permeate branch pipe 13. This design facilitates the replacement of the permeate branch pipe 13. Specifically, in the illustrated embodiment, one end of the second adapter 15 extends into the permeate branch pipe 13 through the second port, and a detachable second clamp 20 is provided outside the permeate branch pipe 13 to tighten the permeate branch pipe 13 and the second adapter 15. This design ensures that the flexible permeate branch pipe 13 and the second adapter 15 are in close contact under the tightening action of the second clamp 20, achieving a seal and preventing leakage at the connection between the permeate branch pipe 13 and the second adapter 15. Furthermore, after removing the second clamp 20, the second adapter 15 can be easily removed from the permeate branch pipe 13, thus facilitating the replacement of the permeate branch pipe 13. Specifically, in the illustrated embodiment, the two ends of the second clamp 20 are connected by threaded fasteners, and the second clamp 20 is tightened or loosened by tightening the threaded fasteners. The structure of the part of the second adapter 15 inserted into the water production branch pipe 13 can be designed to be the same as the part of the first adapter 12 inserted into the water production branch pipe 13. The second adapter 15 can be welded to the main water production pipe 14.
[0044] In some embodiments, as shown in Figures 2 and 3, each slot of the support 16 includes an upper slot 161 and a lower slot 162 aligned vertically. The upper slot 161 is located on the upper part of the support 16, and the lower slot 162 is located on the lower part of the support 16. The support 16 includes a support beam 163, which is at least partially located on the bottom side of the lower slot 162 to support the membrane assembly 11 within the slot. The upper slot 161 is lower than the upper water collection pipe 112, so that the upper slot 161 does not interfere with the connection between the permeate branch pipe 13 and the upper water collection pipe 112.
[0045] In some embodiments, the support 16 is a frame structure. For example, in the illustrated embodiment, the support column includes four vertically extending columns, with crossbeams connecting the upper and lower parts of the four columns. This type of support 16 has good overall integrity and can be hoisted using lifting equipment.
[0046] In some embodiments, as shown in FIG1, the submerged membrane separator includes an aeration assembly 18, which includes a collector frame 181 and an aeration pipe 182. The collector frame 181 is fixed to the lower part of the support 16, and has a flow channel inside. The collector frame 181 has an air source interface 181a for connecting to an external air source. The aeration pipe 182 is located below the membrane module 11, and communicates with the internal flow channel of the collector frame 181. The aeration pipe 182 has aeration holes.
[0047] In some embodiments, the spacing between adjacent membrane modules 11 is 40mm to 100mm, preferably 45mm to 75mm, and more preferably 50mm to 70mm. This ensures water treatment performance while preventing friction between the membrane modules 11 and adjacent membrane modules 11 during vertical movement.
[0048] In some embodiments, the width of the membrane module 11 is no greater than 1500 mm, preferably no greater than 1000 mm, and more preferably no greater than 850 mm. The height of the membrane module 11 is no greater than 2000 mm, and the length of the membrane element 111 is no greater than 2100 mm. The thickness of the membrane module 11 is no greater than 60 mm, preferably no greater than 50 mm, and more preferably no greater than 30 mm. This ensures that the weight of a single row of membrane modules 11 is not too high, facilitating manual up-and-down movement of the membrane modules 11.
[0049] In some embodiments, the relaxation degree of membrane element 111 is no greater than 5%.
[0050] In some embodiments, the height of the upper water collection pipe 112 of the membrane module 11 is not less than 60 mm, preferably not less than 100 mm, and more preferably not less than 120 mm. This ensures the water production rate.
[0051] In some embodiments, the flexible permeate branch pipe 13 has an inner diameter of 15mm-20mm and a wall thickness of 2mm-3mm. This ensures that the permeate branch pipe 13 is not easily damaged when it is bent during the disassembly and assembly of the membrane assembly 11.
[0052] In some embodiments, the main body of the flexible water production branch pipe 13 is made of polyvinyl chloride (PVC) and has a steel wire lining.
[0053] In some embodiments, the permeate branch pipes 13 and the permeate main pipe 14 on the left and right sides of the membrane module 11 are symmetrical.
[0054] The above embodiments can be freely combined without conflict.
[0055] The above examples illustrate the principles and implementation methods of this application. The descriptions of the embodiments are merely for the purpose of helping to understand the methods and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.
Claims
1. A submersible membrane separator, characterized in that, The submerged membrane separator includes a membrane module (11), a first adapter (12), a permeate branch pipe (13), and a permeate main pipe (14). Multiple rows of the membrane modules (11) are arranged sequentially in the front-to-back direction. Each row of the membrane modules (11) includes a membrane element (111) and an upper water collection pipe (112) located above the membrane element (111). Each row of the membrane modules (11) has a permeate outlet (A) in the upper water collection pipe (112). Multiple interfaces (14a) are arranged sequentially at intervals along the length of the permeate main pipe (14). Each permeate outlet (A) is connected to the first port of each permeate branch pipe (13) by a first adapter (12). The first adapter (12) is detachably connected to at least one of the permeate outlet (A) and the first port of the permeate branch pipe (13). The second port of each permeate branch pipe (13) is connected to one of the interfaces (14a).
2. The submersible membrane separator according to claim 1, characterized in that, The main water pipe (14) is arranged on the left or right side of the multi-row membrane module (11) and extends in the front-back direction and is lower than the water outlet (A).
3. The submersible membrane separator according to claim 1, characterized in that, The first port of the water production branch pipe (13) and the water production outlet (A) are arranged to face left or right. The two ends of the first adapter (12) are respectively inserted into the first port of the water production branch pipe (13) and the water production outlet (A) in the left and right directions. The water production branch pipe (13) is a flexible pipe.
4. The submersible membrane separator according to claim 1, characterized in that, The water production branch pipe (13) is a flexible pipe. One end of the first adapter (12) passes through the first port and is inserted into the water production branch pipe (13). A detachable first clamp (19) is provided outside the water production branch pipe (13) to tighten the water production branch pipe (13) and the first adapter (12).
5. The submersible membrane separator according to claim 1, characterized in that, One end of the first adapter (12) passes through the water outlet (A) and is inserted into the upper water collection pipe (112), and a sealing ring is provided between the first adapter (12) and the upper water collection pipe (112) for sealing.
6. The submersible membrane separator according to claim 1, characterized in that, The submerged membrane separator includes a second adapter (15), and each port (14a) of the main water pipe (14) is connected to a second adapter (15), and each second adapter (15) is detachably connected to a second port of a branch water pipe (13).
7. The submersible membrane separator according to claim 6, characterized in that, The water production branch pipe (13) is a flexible pipe. One end of the second adapter (15) passes through the second port and is inserted into the water production branch pipe (13). A detachable second clamp (20) is provided outside the water production branch pipe (13) to tighten the water production branch pipe (13) and the second adapter (15).
8. The submersible membrane separator according to any one of claims 1-7, characterized in that, The submerged membrane separator includes a support (16) and a pressing member (17). The support (16) has multiple slots arranged sequentially in the front-to-back direction. Each row of membrane modules (11) is inserted into one of the slots. The pressing member (17) presses against the multiple rows of membrane modules (11). The pressing member (17) is detachably connected to the support (16) or the side wall of the membrane tank where the submerged membrane separator is located. Each slot has an upper slot opening. After the pressing member (17) is removed, the membrane module (11) can move upward and leave the slot from the upper slot opening.
9. The submersible membrane separator according to claim 8, characterized in that, Each of the slots includes an upper slot (161) and a lower slot (162) aligned vertically. The upper slot (161) is located on the upper part of the support (16), and the lower slot (162) is located on the lower part of the support (16). The support (16) includes a support beam (163), which is at least partially located on the bottom side of the lower slot (162) to support the membrane assembly (11) within the slot. The upper slot (161) is lower than the upper water collection pipe (112).
10. The submersible membrane separator according to claim 8, characterized in that, The submerged membrane separator includes an aeration assembly (18), which includes a collection frame (181) and an aeration pipe (182). The collection frame (181) is fixed to the lower part of the support (16). The collection frame (181) has a flow channel inside and an air source interface (181a) for connecting to an external air source. The aeration pipe (182) is located below the membrane assembly (11) and is connected to the internal flow channel of the collection frame (181). The aeration pipe (182) has aeration holes.