Filtering assembly and membrane bag

Abstract

The utility model discloses a filtering assembly, which comprises a filtering unit, the filtering unit comprises a first screen mesh, a second screen mesh and a filtering membrane which are mutually overlapped, the filtering membrane is arranged between the first screen mesh and the second screen mesh, and the first screen mesh, the second screen mesh and the filtering membrane are respectively provided with a first through hole and a second through hole which correspond to each other in position. The first screen mesh and the second screen mesh respectively comprise a sealing part and a grid part, the first through holes of the first screen mesh are formed in the grid part of the first screen mesh, the second through holes of the first screen mesh are formed in the sealing part of the first screen mesh, the first through holes of the second screen mesh are formed in the sealing part of the second screen mesh, and the second through holes of the second screen mesh are formed in the grid part of the second screen mesh. The membrane bag is composed of the two plate bodies and the filter assembly, the two plate bodies and the first screen and the second screen of the filter assembly are all provided with the positioning holes corresponding in position, the plate bodies and the filter assembly are fixed through the fasteners, and therefore the membrane bag can be detached, the filter membrane can be replaced, and the use cost of the membrane bag is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane modules, and more specifically, to a filtering component and a membrane module. Background Art

[0002] The existing ultrafiltration membrane modules on the market are expensive, and the membrane sheets in the membrane module are contaminated and cannot be used after multiple uses. Therefore, a reusable membrane module is needed to reduce the use cost. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a filtering component, which includes a filtering unit. The filtering unit includes a first screen, a second screen and a filtering membrane that are stacked on each other. The filtering membrane is placed between the first screen and the second screen. The first screen, the second screen and the filtering membrane are all provided with first through holes and second through holes corresponding in position. The first screen and the second screen both include a sealing part and a grid part. The first through hole of the first screen is placed in the grid part of the first screen, and the second through hole of the first screen is placed in the sealing part of the first screen. The first through hole of the second screen is placed in the sealing part of the second screen, and the second through hole of the second screen is placed in the grid part of the second screen.

[0006] Further, the filtering unit includes a first diagonal line and a second diagonal line. There are two first through holes which are respectively placed at both ends of the first diagonal line, and there are two second diagonal lines which are respectively placed at both ends of the first diagonal line.

[0007] Further, the sealing part of the first screen is placed at two corners corresponding to the first diagonal line.

[0008] Further, the sealing part of the second screen is placed at two corners corresponding to the second diagonal line.

[0009] Further, the diameter of the first through hole is larger than the diameter of the second through hole.

[0010] Further, there are multiple filtering units, and a partition membrane is arranged between adjacent filtering units.

[0011] The utility model also discloses a membrane module, which includes two plate bodies. A filtering component is arranged between the two plate bodies. The plate bodies, the first screen and the second screen are all provided with positioning holes corresponding in position. The first screen, the second screen and the two plate bodies are fixed by fasteners passing through the positioning holes.

[0012] Further, the plate body is provided with a first inlet / outlet hole corresponding to the first through hole and a second inlet / outlet hole corresponding to the second through hole. The two plate bodies are provided with at least two first inlets / outlets and at least one second inlet / outlet hole in total.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The membrane package is composed of two plate bodies and a filter assembly disposed between the plate bodies. Position-corresponding positioning holes are provided on the two plate bodies, on the first screen and the second screen of the filter assembly. The plate body and the filter assembly are fixed by fasteners, so as to facilitate the disassembly of the membrane package and the replacement of the filter membrane, thereby reducing the use cost of the membrane package. Description of the Drawings

[0015] Figure 1 is a structural utility model diagram of the present utility model;

[0016] Figure 2 is an exploded view of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the first screen of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the second screen of the present utility model;

[0019] Reference numerals: plate body 100, first inlet / outlet hole 110, second inlet / outlet hole 120, positioning hole 130, first screen 200, first through hole 201, second through hole 202, sealing part 210, grid part 220, filter membrane 300, first diagonal line 310, second diagonal line, second screen 400, partition membrane 500, filter unit 600. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Refer to Figures 1 to 4, A membrane package, comprising two plate bodies 100, a filter assembly is arranged between the two bodies, the filter assembly is composed of a plurality of filter units 600, and a partition membrane 500 is arranged between adjacent filter units 600. The filter unit 600 includes a first screen 200, a second screen 400, and a filter membrane 300 disposed between the first screen 200 and the second screen 400. The three are overlapped with each other. Positioning holes 130 are provided at the edges of the plate body 100, the first screen 200, and the second screen 400, and the positions of the positioning holes 130 of the three correspond to each other, so that the plate body 100 and the filter assembly can be fixed by fasteners passing through the positioning holes 130 of the three, so that the filter unit 600 can be disassembled to facilitate the replacement of the filter membrane 300, thereby reducing the use cost of the membrane package.

[0022] Both the first screen 200 and the second screen 400 include a sealing portion 210 and a grid portion 220. In the first screen 200, its first through hole 201 is disposed in the sealing portion 210, and the second through hole 202 is disposed in the grid portion 220. At the same time, in the second screen 400, its first through hole 201 is disposed in the grid portion 220, and the second through hole 202 is disposed in the sealing portion 210, so that the positions of the two sealing portions 210 in the first screen 200 and the second screen 400 are opposite.

[0023] Specifically, the first screen 200, the second screen 400, and the filter membrane 300 in the filter unit 600 are all rectangular structures, and the filter unit 600 includes a first diagonal line 310 and a second diagonal line 320. The first diagonal line 310 and the second diagonal line 320 are also the diagonal lines of the first screen 200, the second screen 400, and the filter membrane 300. The first through hole 201 is disposed at both ends of the first diagonal line 310, and the second through hole 202 is disposed at both ends of the second diagonal line 320. The sealing portion 210 in the first screen 200 is disposed at the two top corners where the first diagonal line 310 is located. The sealing portion 210 in the second screen 400 is disposed at the two top corners where the second diagonal line 320 is located.

[0024] On the plate body 100, there are provided two first inlet and outlet holes 110 corresponding to the positions of the two first through holes 201 respectively, and two second inlet and outlet holes 120 corresponding to the positions of the two second through holes 202 respectively. The stock solution enters the first screen 200 of each unit from the first inlet and outlet holes 110. Since the meshes of the screen increase the resistance suffered by the stock solution in the screen, the pressure in the first screen 200 increases. As a result, part of the stock solution passes through the filter membrane 300 and enters the second screen 400 to become the filtrate, while the other part remains in the first screen 200. Since the first through hole 201 of the first screen 200 is provided on the mesh part 220, and the second through hole 202 is provided on the sealing part 210, the stock solution located on the mesh part 220 cannot flow through the second through hole 202. Thus, the stock solution flowing in the first screen 200 can only be discharged from the filtration unit 600 through another first through hole 201 and the corresponding another first inlet and outlet hole 110, and then enters the filtration unit 600 again for filtration, cycling until the stock solution continuously decreases. Since the first through hole 201 of the second screen 400 is placed on the sealing part 210, and the second through hole 202 is placed on the mesh part 220, the filtrate filtered into the second screen 400 cannot communicate with the first through hole 201, and thus can only be discharged outside the filtration assembly through the second through hole 202 and the second inlet and outlet hole 120 corresponding to the second through hole 202, so that the filtrate is separated from the stock solution.

[0025] The diameter of the first through hole 201 is larger than that of the second through hole 202, which is convenient for distinguishing the holes for the inlet and outlet of the stock solution and the holes for the filtration of the filtrate, and is convenient for the connection of the entire filtration pipeline.

[0026] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A filter assembly, characterized in that: The invention comprises a filter unit (600), wherein the filter unit (600) comprises a first screen (200), a second screen (400) and a filter membrane (300) which are overlapped with each other, wherein the filter membrane (300) is arranged between the first screen (200) and the second screen (400), wherein the first screen (200), the second screen (400) and the filter membrane (300) are all provided with a first through hole (201) and a second through hole (202) which are located in a corresponding position, and wherein the first screen (200) and the second screen (400) both comprise a sealing portion (210). ) and a mesh portion (220), the first through hole (201) of the first sieve (200) is placed in the mesh portion (220) of the first sieve (200), the second through hole (202) of the first sieve (200) is placed in the sealing portion (210) of the first sieve (200), the first through hole (201) of the second sieve (400) is placed in the sealing portion (210) of the second sieve (400), and the second through hole (202) of the second sieve (400) is placed in the mesh portion (220) of the second sieve (400).

2. A filter assembly according to claim 1, characterized in that: The filter unit (600) comprises a first diagonal line (310) and a second diagonal line (320), two first through holes (201) are provided and are respectively disposed at two ends of the first diagonal line (310), and two second diagonal lines (320) are provided and are respectively disposed at two ends of the first diagonal line (310).

3. A filter assembly according to claim 2, characterized in that: The sealing portion (210) of the first screen (200) is disposed at two corners corresponding to the first diagonal line (310).

4. A filter assembly according to claim 2, characterized in that: The sealing portion (210) of the second screen (400) is disposed at two corners corresponding to the second diagonal line (320).

5. A filter assembly according to claim 1, characterized in that: The diameter of the first through hole (201) is greater than the diameter of the second through hole (202).

6. A filter assembly according to claim 1, characterized in that: A plurality of the filter units (600) are provided, and a separation membrane (500) is provided between adjacent filter units (600).

7. A membrane package, characterized in that The filter assembly comprises the filter assembly according to any one of claims 1 to 6.

8. A membrane package according to claim 7, characterized in that: The membrane package also includes two plate bodies (100), and the filter assembly is placed between the two plate bodies (100). The plate bodies (100), the first screen (200) and the second screen (400) are all provided with corresponding positioning holes (130). The first screen (200), the second screen (400) and the two plate bodies (100) are fixed by fasteners passing through the positioning holes (130).

9. A membrane package according to claim 8, characterized in that: The plate body (100) is provided with a first inlet and outlet hole (110) corresponding to the first through hole (201) and a second inlet and outlet hole (120) corresponding to the second through hole (202), and the two plate bodies (100) are provided with at least two first inlet and outlet holes (110) and at least one second inlet and outlet hole (120) in total.

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