Membrane shell structure of flat membrane

Abstract

According to the membrane shell structure of the flat membrane, one end of a membrane shell body is connected with a first fixing piece, and the side part of the first fixing piece is connected with a first end sealing plate; the other end of the membrane shell body is connected with a second fixing piece, and the side part of the second fixing piece is connected with a second end sealing plate; the center of the first end sealing plate is connected with a first water production short joint, and the center of the second end sealing plate is connected with a second water production short joint; an end water inlet is formed in the position, close to the first water production short joint, of the side part of the membrane shell body, and an end water outlet is formed in the position, close to the second water production short joint, of the side part of the membrane shell body; middle connecting pieces are arranged at the positions, between every two adjacent middle water outlets and middle water inlets, in the membrane shell body, and the multiple middle connecting pieces divide the membrane shell body into a plurality of membrane core spaces for containing the flat membrane cores. According to the utility model, a plurality of flat reverse osmosis membrane cores can be assembled on one membrane shell, the disassembly and assembly are convenient, and the operation and maintenance difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to a flat sheet membrane shell structure, belonging to the field of flat sheet reverse osmosis technology. Background Technology

[0002] Flat-sheet reverse osmosis membranes typically employ a sandwich structure, with the reverse osmosis membrane core in the middle and supported by quartz glass on both sides. Multiple sandwich-structured reverse osmosis membranes are pressed together by closely spaced triangular supports and connected together by flanges to form a reverse osmosis membrane module.

[0003] Flat-sheet reverse osmosis membrane housings are components that provide containers for flat-sheet reverse osmosis membrane elements. Traditional flat-sheet reverse osmosis membrane modules are all individually packaged, with each membrane element requiring its own housing and related connectors. This results in a large number of parts in flat-sheet reverse osmosis membrane modules, making disassembly, assembly, and maintenance inconvenient. Therefore, it is necessary to improve the design of the flat-sheet membrane housing and surrounding structure of flat-sheet reverse osmosis membrane modules. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a flat-sheet membrane housing structure that allows multiple flat-sheet reverse osmosis membrane cores to be assembled in a single housing, thus solving the problems of numerous components, inconvenient disassembly, assembly, and maintenance associated with traditional structures.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A flat membrane shell structure includes a membrane shell body, one end of which is connected to a first fixing member, and a first end sealing plate is connected to the side of the first fixing member; the other end of the membrane shell body is connected to a second fixing member, and a second end sealing plate is connected to the side of the second fixing member; a first water production short connector is connected to the center of the first end sealing plate, and a second water production short connector is connected to the center of the second end sealing plate;

[0006] An end inlet is formed on the side of the membrane housing body near the first water production short connector, and an end outlet is formed on the side of the membrane housing body near the second water production short connector.

[0007] A plurality of intermediate outlets and a plurality of intermediate inlets are provided between the end inlet and the end outlet; the intermediate outlets and intermediate inlets are arranged in sequence at intervals.

[0008] Inside the membrane housing, there are intermediate connecting members between two adjacent intermediate water outlets and intermediate water inlets. Several intermediate connecting members divide the membrane housing into several membrane core spaces that accommodate flat membrane cores.

[0009] As a preferred embodiment of the flat sheet membrane shell structure, a first water outlet is formed at the center of the first end sealing plate, and one end of the first water outlet short connector is inserted into the first water outlet; the other end of the first water outlet short connector is connected to the flat sheet membrane core inside the membrane shell body.

[0010] The center of the second end sealing plate has a second water outlet, one end of the second water outlet is inserted into the second water outlet; the other end of the second water outlet is connected to the flat membrane core inside the membrane shell body.

[0011] Both the first and second water-producing short connectors are equipped with connector sealing rings.

[0012] As a preferred embodiment of the flat membrane shell structure, a first slot is formed on the inner wall of one end of the membrane shell body, and the edge of the first fixing member is inserted into the first slot;

[0013] A second slot is formed on the inner wall of the other end of the membrane shell body, and the edge of the second fixing member is inserted into the second slot.

[0014] As a preferred embodiment of the flat membrane shell structure, a first sealing ring is filled between the first end sealing plate and the inner wall of the membrane shell body; a second sealing ring is filled between the second end sealing plate and the inner wall of the membrane shell body.

[0015] As a preferred embodiment of the flat membrane shell structure, the intermediate connector includes an intermediate support portion, an intermediate first interface portion, and an intermediate second interface portion; the intermediate first interface portion and the intermediate second interface portion are connected to both sides of the intermediate support portion.

[0016] As a preferred embodiment of the flat membrane shell structure, the edges of the intermediate support portion are provided with lip-shaped sealing rings; the intermediate first interface portion and the intermediate second interface portion are respectively provided with intermediate end sealing rings.

[0017] As a preferred embodiment of the flat membrane shell structure, several flat membrane cores within the membrane core spaces are connected in parallel within the same membrane shell body.

[0018] The beneficial effects of this utility model are as follows: A first fixing member is connected to one end of the membrane housing body, and a first end sealing plate is connected to the side of the first fixing member; a second fixing member is connected to the other end of the membrane housing body, and a second end sealing plate is connected to the side of the second fixing member; a first permeate short connector is connected to the center of the first end sealing plate, and a second permeate short connector is connected to the center of the second end sealing plate; an end inlet is formed on the side of the membrane housing body near the first permeate short connector, and an end outlet is formed on the side of the membrane housing body near the second permeate short connector; several intermediate outlets and several intermediate inlets are provided between the end inlets and end outlets; the intermediate outlets and intermediate inlets are arranged alternately; intermediate connecting members are provided inside the membrane housing body between adjacent intermediate outlets and intermediate inlets, and these intermediate connecting members divide the membrane housing body into several membrane core spaces for accommodating flat-sheet membrane cores. This utility model allows for the assembly of multiple flat-sheet reverse osmosis membrane cores into one membrane housing, reducing the number of components in the membrane module, making the flat-sheet membrane cores easier to assemble and disassemble, and reducing the difficulty of operation and maintenance. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is a schematic diagram of the flat membrane shell structure provided in the embodiments of this utility model;

[0022] Figure 2 This is a partial schematic diagram of the flat membrane shell structure provided in the embodiments of this utility model;

[0023] Figure 3 This is a schematic diagram of the intermediate connecting component of the flat membrane shell structure provided in the embodiments of this utility model;

[0024] Figure 4 This is a schematic diagram of the water production short connector of the flat membrane shell structure provided in the embodiment of this utility model.

[0025] In the figure, 1. Membrane housing body; 2. First fixing component; 3. First end sealing plate; 4. Second fixing component; 5. Second end sealing plate; 6. First product water short connector; 7. Second product water short connector; 8. End inlet; 9. End outlet; 10. Middle outlet; 11. Middle inlet; 12. Middle connector; 13. Membrane core space; 14. Connector sealing ring; 15. First sealing plate sealing ring; 16. Second sealing plate sealing ring; 17. Middle support part; 18. Middle first interface part; 19. Middle second interface part; 20. Lip sealing ring; 21. Middle end sealing ring. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figure 1 and Figure 2 This utility model provides a flat membrane shell structure, including a membrane shell body 1, one end of the membrane shell body 1 is connected to a first fixing member 2, and the side of the first fixing member 2 is connected to a first end sealing plate 3; the other end of the membrane shell body 1 is connected to a second fixing member 4, and the side of the second fixing member 4 is connected to a second end sealing plate 5; the center of the first end sealing plate 3 is connected to a first water production short connector 6, and the center of the second end sealing plate 5 is connected to a second water production short connector 7;

[0029] Wherein, an end inlet 8 is formed on the side of the membrane housing 1 near the first water production short connector 6, and an end outlet 9 is formed on the side of the membrane housing 1 near the second water production short connector 7; a plurality of intermediate outlets 10 and a plurality of intermediate inlets 11 are provided between the end inlet 8 and the end outlet 9; the intermediate outlets 10 and intermediate inlets 11 are arranged in sequence at intervals.

[0030] The membrane housing body 1 has intermediate connectors 12 located between two adjacent intermediate outlets 10 and intermediate inlet 11. Several intermediate connectors 12 divide the membrane housing body 1 into several membrane core spaces 13 for accommodating flat membrane cores. The flat membrane cores in the several membrane core spaces 13 are connected in parallel within the same membrane housing body 1, which reduces the number of parts in the membrane module and makes the flat membrane cores easier to disassemble and assemble, and reduces the difficulty of operation and maintenance.

[0031] In this embodiment, a first water outlet is formed at the center of the first end sealing plate 3, and one end of the first water outlet short connector 6 is inserted into the first water outlet; the other end of the first water outlet short connector 6 is connected to the flat membrane core inside the membrane housing body 1; a second water outlet is formed at the center of the second end sealing plate 5, and one end of the second water outlet short connector 7 is inserted into the second water outlet; the other end of the second water outlet short connector 7 is connected to the flat membrane core inside the membrane housing body 1; the first water outlet short connector 6 and the second water outlet short connector 7 are provided with connector sealing rings 14.

[0032] See Figure 1 , Figure 2 and Figure 4 Specifically, the first end sealing plate 3 is connected to the first product water short connector 6 through the first product water port, and the second end sealing plate 5 is connected to the second product water short connector 7 through the second product water port. At the same time, the first product water short connector 6 and the second product water short connector 7 are used for product water discharge. The other end of the first product water short connector 6 and the second product water short connector 7 are connected to the adjacent flat sheet membrane element for collection by the flat sheet membrane element. Both ends of the first product water short connector 6 and the second product water short connector 7 have two layers of joint sealing rings 14 to prevent the product water from mixing with the inlet or outlet water quality and affecting the outlet water quality.

[0033] In this embodiment, a first groove is formed on the inner wall of one end of the membrane housing body 1, and the edge of the first fixing member 2 is inserted into the first groove; a second groove is formed on the inner wall of the other end of the membrane housing body 1, and the edge of the second fixing member 4 is inserted into the second groove; a first sealing ring 15 is filled between the first end sealing plate 3 and the inner wall of the membrane housing body 1; a second sealing ring 16 is filled between the second end sealing plate 5 and the inner wall of the membrane housing body 1.

[0034] See Figure 1 and Figure 2 Specifically, one end of the membrane housing body 1 is sealed by inserting the edge of the first fixing member 2 into the first slot, and the other end of the membrane housing body 1 is sealed by inserting the edge of the second fixing member 4 into the second slot. The first fixing member 2, together with the first sealing ring 15 on the first end sealing plate 3, seals and fixes one end of the membrane housing body 1, and the second fixing member 4, together with the second sealing ring 16 on the second end sealing plate 5, seals and fixes the other end of the membrane housing body 1.

[0035] In this embodiment, the intermediate connector 12 includes an intermediate support portion 17, an intermediate first interface portion 18, and an intermediate second interface portion 19; the intermediate first interface portion 18 and the intermediate second interface portion 19 are connected to both sides of the intermediate support portion 17; the edges of the intermediate support portion 17 are provided with lip-shaped sealing rings 20; the intermediate first interface portion 18 and the intermediate second interface portion 19 are respectively provided with intermediate end sealing rings 21.

[0036] See Figure 3 Specifically, the intermediate connector 12 serves as the connector for the central permeate pipes of two adjacent flat-plate membrane elements within the membrane housing 1. It also separates the intermediate inlet 11 and intermediate outlet 10 of the two adjacent flat-plate membrane elements. A lip seal 20 is added to the intermediate support portion 17 of the intermediate connector 12 to prevent mixing of the inlet and outlet water. Two layers of intermediate end seals 21 are provided at the connection points of the intermediate first interface portion 18 and intermediate second interface portion 19 of the intermediate connector 12 to the flat-plate membrane elements to prevent mixing of the permeate water quality with the inlet or outlet water quality.

[0037] In one possible embodiment, the material of the membrane housing body 1 varies depending on the requirements, including but not limited to fiberglass, carbon steel, stainless steel, etc.; the pressure rating of the membrane housing body 1 varies depending on the requirements, including but not limited to pressure ratings such as 150psi, 300psi, 450psi, 600psi, 1200psi, 1500psi, etc.; the size, number, and spacing of the inlet and outlet on the membrane housing body 1 can be adjusted according to the membrane core size.

[0038] In summary, one end of the membrane housing body 1 of this utility model is connected to a first fixing member 2, and the side of the first fixing member 2 is connected to a first end sealing plate 3; the other end of the membrane housing body 1 is connected to a second fixing member 4, and the side of the second fixing member 4 is connected to a second end sealing plate 5; the center of the first end sealing plate 3 is connected to a first water production short connector 6, and the center of the second end sealing plate 5 is connected to a second water production short connector 7; an end water inlet 8 is formed on the side of the membrane housing body 1 near the first water production short connector 6, and an end water outlet 9 is formed on the side of the membrane housing body 1 near the second water production short connector 7; a plurality of intermediate water outlets 10 and a plurality of intermediate water inlets 11 are provided between the end water inlet 8 and the end water outlet 9; the intermediate water outlets 10 and intermediate water inlets 11 are arranged alternately; an intermediate connector 12 is provided inside the membrane housing body 1 between two adjacent intermediate water outlets 10 and intermediate water inlets 11, and the plurality of intermediate connectors 12 divide the membrane housing body 1 into a plurality of membrane core spaces 13 for accommodating flat membrane cores. The first end sealing plate 3 is connected to the first product water short connector 6 through the first product water port, and the second end sealing plate 5 is connected to the second product water short connector 7 through the second product water port. Simultaneously, the first product water short connector 6 and the second product water short connector 7 are used for product water discharge. The other ends of the first product water short connector 6 and the second product water short connector 7 are connected to adjacent flat sheet membrane elements for collection by the flat sheet membrane elements. Both ends of the first product water short connector 6 and the second product water short connector 7 have two layers of connector sealing rings 14 to prevent the product water from mixing with the influent or effluent water quality, thus affecting the effluent water quality. One end of the membrane housing body 1 is sealed by inserting the edge of the first fixing member 2 into the first slot, and the other end of the membrane housing body 1 is sealed by inserting the edge of the second fixing member 4 into the second slot. The first fixing member 2, in conjunction with the first sealing plate sealing ring 15 on the first end sealing plate 3, provides a sealing and fixing function for one end of the membrane housing body 1, and the second fixing member 4, in conjunction with the second sealing plate sealing ring 16 on the second end sealing plate 5, provides a sealing and fixing function for the other end of the membrane housing body 1. The intermediate connector 12 serves as the connection between the central permeate pipes of two adjacent flat-plate membrane elements within the membrane housing 1. It also separates the central inlet 11 and central outlet 10 of the two adjacent flat-plate membrane elements. A lip seal 20 is added to the central support portion 17 of the intermediate connector 12 to prevent mixing of the inlet and outlet water. Two layers of intermediate end seals 21 are provided at the connection points of the central first interface portion 18 and central second interface portion 19 of the intermediate connector 12 to the flat-plate membrane elements to prevent mixing of the permeate water quality with the inlet or outlet water quality. This invention allows for the assembly of multiple flat-plate reverse osmosis membrane elements within a single membrane housing, reducing the number of components in the membrane module, making the flat-plate membrane elements easier to assemble and disassemble, and lowering the difficulty of operation and maintenance.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A flat sheet membrane housing structure, characterized by, The membrane housing body (1) is connected to a first fixing member (2) at one end, and a first end sealing plate (3) is connected to the side of the first fixing member (2); a second fixing member (4) is connected to the other end of the membrane housing body (1), and a second end sealing plate (5) is connected to the side of the second fixing member (4); a first product water short connector (6) is connected to the center of the first end sealing plate (3), and a second product water short connector (7) is connected to the center of the second end sealing plate (5). An end inlet (8) is formed on the side of the membrane housing body (1) near the first water production short connector (6), and an end outlet (9) is formed on the side of the membrane housing body (1) near the second water production short connector (7). A plurality of intermediate outlets (10) and a plurality of intermediate inlets (11) are provided between the end inlet (8) and the end outlet (9); the intermediate outlets (10) and the intermediate inlets (11) are arranged alternately in sequence; Inside the membrane shell body (1), there is an intermediate connector (12) between two adjacent intermediate outlets (10) and intermediate inlet (11), and several intermediate connectors (12) divide the membrane shell body (1) into several membrane core spaces (13) for accommodating flat membrane cores.

2. A flat sheet membrane module according to claim 1, wherein, The first end cap (3) has a first water outlet in the center, and one end of the first water outlet short connector (6) is inserted into the first water outlet; the other end of the first water outlet short connector (6) is connected to the flat membrane core inside the membrane shell body (1). The second end sealing plate (5) has a second water outlet formed in the center, and one end of the second water outlet short connector (7) is inserted into the second water outlet; the other end of the second water outlet short connector (7) is connected to the flat membrane core inside the membrane shell body (1); The first water production short connector (6) and the second water production short connector (7) are provided with connector sealing rings (14).

3. A flat sheet membrane module according to claim 1, wherein A first slot is formed on the inner wall of one end of the membrane shell body (1), and the edge of the first fixing member (2) is inserted into the first slot; A second slot is formed on the inner wall of the other end of the membrane shell body (1), and the edge of the second fixing member (4) is inserted into the second slot.

4. The flat sheet membrane cartridge of claim 1, wherein, A first sealing ring (15) is filled between the first end sealing plate (3) and the inner wall of the membrane body (1); a second sealing ring (16) is filled between the second end sealing plate (5) and the inner wall of the membrane body (1).

5. A flat sheet membrane cartridge according to claim 1, wherein, The intermediate connector (12) includes an intermediate support (17), an intermediate first interface (18), and an intermediate second interface (19); the intermediate first interface (18) and the intermediate second interface (19) are connected to both sides of the intermediate support (17).

6. A flat sheet membrane cartridge according to claim 5, wherein, The edges of the intermediate support (17) are provided with lip-shaped sealing rings (20); the intermediate first interface (18) and the intermediate second interface (19) are respectively provided with intermediate end sealing rings (21).

7. A flat sheet membrane cartridge according to claim 1, wherein, The flat membrane cores inside several of the membrane core spaces (13) are formed in parallel inside the membrane shell body (1).

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