Membrane assembly capable of realizing uniform aeration

Abstract

The utility model discloses a membrane component capable of uniformly aerating, which comprises a membrane shell, a membrane wire distribution frame and an aerating pipe, the membrane wire distribution frame is arranged in the membrane shell, the membrane wire distribution frame is provided with a central pipe, the outer side of the central pipe is provided with a plurality of partition plates, the upper ends of the partition plates are provided with hollow aerating channels, two sides of the aerating channels are provided with aerating holes, and the aerating holes are communicated with the central pipe. An air inlet hole is formed in the pipe wall of the central pipe, and the upper end of the aeration pipe extends into the central pipe and is communicated with the aeration channel through the air inlet hole. According to the utility model, the partition plate is provided with the aeration channel and the aeration holes on the two sides, so that a three-dimensional aeration mode that gas radiates and diffuses from the center of the membrane module to the periphery is realized, different areas of membrane wires can be covered, and the aeration uniformity is obviously improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of column membrane modules, and specifically relates to a membrane module that can uniformly aerate. Background Technology

[0002] The internal membrane fibers of the hollow fiber column membrane module are fixed on the membrane fiber distribution frame at both ends. The resin end face is formed by end sealing with resin, so that the raw water enters the inner cavity of the membrane shell module through one end of the column membrane module and is filtered by the membrane fibers. The filtered concentrate is discharged from the concentrate port of the hollow fiber column membrane module, while the permeate after filtration, i.e. the product water, flows out from the product water port.

[0003] Currently, most industry solutions for membrane fiber fouling involve aeration. This is achieved by creating openings at the bottom of the module, allowing gas to enter the module through pores distributed on the end face. However, this unidirectional aeration results in poor uniformity and ineffective aeration, thus impacting the cleaning performance of the membrane fibers. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a membrane module capable of uniform aeration, which improves aeration efficiency and better cleans dirt from the membrane fibers.

[0005] Therefore, the technical solution of this utility model is: a membrane module capable of uniform aeration, comprising a membrane shell, a membrane fiber distribution frame, and an aeration pipe. The membrane fiber distribution frame is placed inside the membrane shell, and the membrane fiber distribution frame has a central tube. Several partition plates are provided on the outside of the central tube. The upper end of the partition plate has a hollow aeration channel, and aeration holes are provided on both sides of the aeration channel. An air inlet is provided on the wall of the central tube, and the upper end of the aeration pipe extends into the central tube and is connected to the aeration channel through the air inlet.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the central tube has a double-layer structure, with multiple hollow connecting columns between the inner tube and the outer tube, and the interior of the connecting columns is an air passage connecting the air inlet and the aeration channel, and the partition plate is fixed on the outer tube.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the upper end of the aeration pipe extends into the inner pipe and is sealed to the inner pipe by a sealing ring.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the membrane shell is fixed to the water inlet end cap as a whole, the water inlet end cap has a water inlet on the side and an air inlet at the bottom, and the aeration pipe is placed inside the water inlet end cap and connected to the air inlet.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the partition plate is provided with a number of first adhesive flow holes, which can connect the two sides of the partition plate; an arc-shaped plate is installed between two adjacent partition plates, the arc-shaped plate is provided with a number of second adhesive flow holes, and all the arc-shaped plates are assembled into a circle.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: a fixing post is provided on the outer side of the partition plate, and a buckle part is provided on both sides of the arc plate, and the buckle part is fastened to the fixing post.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The partition plate is equipped with aeration channels and aeration holes on both sides, realizing a three-dimensional aeration mode in which gas radiates and diffuses from the center of the membrane module to the surrounding area, which can cover different areas of the membrane fibers and significantly improve the uniformity of aeration.

[0013] 2. The aeration holes are distributed on both sides of the partition plate, which can form a bidirectional airflow to flush the membrane fiber surface on both sides, which can reduce sludge adhesion and extend the cleaning cycle.

[0014] 3. The separator plate is equipped with the first flow hole and the arc plate is equipped with the second flow hole to ensure that the resin is evenly filled during the end-sealing process and to avoid the membrane fibers being not firmly fixed. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the parts of this utility model;

[0017] Figure 3 This is an axial structural cross-sectional view of the present invention;

[0018] Figure 4 This is a radial structural cross-sectional view of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the membrane filament distribution frame of this utility model;

[0020] Figure 6 This is a schematic diagram of the split structure of the membrane filament distribution frame of this utility model;

[0021] Figure 7 This is a cross-sectional view of the membrane filament distribution frame of this utility model;

[0022] Figure 8 This is a schematic diagram of the installation of this utility model.

[0023] The components in the diagram are labeled as follows: membrane shell 1, membrane fiber distribution frame 2, central tube 21, inner tube 211, outer tube 212, connecting column 213, partition plate 22, first glue flow hole 221, fixing column 222, arc plate 23, second glue flow hole 231, snap fastener 24, aeration channel 25, first aeration hole 26, air inlet 27, aeration pipe 3, aeration hood 31, extension 32, second aeration hole 33, air inlet end cap 4, water inlet 41, and air inlet 42. Detailed Implementation

[0024] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0026] See the attached drawings. The membrane module capable of uniform aeration described in this embodiment includes a membrane shell 1 (only the bottom part of the membrane shell is shown in the figure for ease of illustration), a membrane fiber distribution frame 2, an aeration pipe 3, and an air inlet cap 4. The membrane shell 1 and the water inlet cap 4 are fixed together. The water inlet cap 4 has a water inlet 41 on its side and an air inlet 42 at its bottom. The aeration pipe 3 is placed inside the water inlet cap 4 and is connected to the air inlet 42.

[0027] The membrane fiber distribution frame 2 is placed inside the membrane shell 1. The membrane fiber distribution frame 2 is provided with a central tube 21. The central tube 21 has a double-layer structure. There are multiple hollow connecting columns 213 between the inner tube 211 and the outer tube 212. The inner tube 211 and the outer tube 212 are water inlet channels, and water flows into the membrane shell 1 from the gap between adjacent connecting columns 213.

[0028] The outer tube 212 is provided with several partition plates 22, which divide the interior of the membrane shell 1 into multiple different regions, and the regions are filled with membrane filaments; the partition plates 22 are provided with several first adhesive flow holes 221, which can connect the regions on both sides of the partition plate, so that they can be more tightly bonded with the adhesive and have better overall strength.

[0029] A fixing post 222 is provided on the outer side of the partition plate 22, and an arc plate 23 is installed between two adjacent partition plates 22. The arc plate 23 is provided with several second adhesive flow holes 231 to improve the bonding force between the distribution frame body 2 and the membrane shell 1. A buckle part 24 is provided in the middle of the side of the arc plate 23, which can be snapped onto the fixing post 222 and all the arc plates are assembled into a circle.

[0030] The upper end of the partition plate 22 is hollow, forming an aeration channel 25. Several first aeration holes 26 are provided on both sides of the aeration channel 25. An air inlet 27 is provided on the wall of the inner tube 211 of the central tube. The interior of the connecting column 213 is an air passage connecting the air inlet 27 and the aeration channel 25. The upper end of the aeration pipe 3 extends into the inner tube 211 and is sealed to the inner tube 211 by a sealing ring. The upper end of the aeration pipe 3 is connected to the aeration channel 25 through the air inlet 27, allowing the first aeration holes 26 to aerate outwards.

[0031] The top of the aeration pipe 3 is inserted into the inner tube 211 of the central tube. An aeration hood 31 is provided below the aeration pipe 3. The aeration hood 31 is provided with multiple extensions 32. The extensions are provided with second aeration holes 33. The second aeration holes 33 are opposite to the openings on the end face of the membrane fibers, so that the end face can still be aerated. They cooperate with the first aeration holes 26 to make the aeration more uniform.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A membrane module capable of uniform aeration, characterized in that: The device includes a membrane shell, a membrane fiber distribution frame, and an aeration pipe. The membrane fiber distribution frame is placed inside the membrane shell and has a central tube. Several partition plates are provided on the outside of the central tube. The upper end of the partition plates has a hollow aeration channel, and aeration holes are provided on both sides of the aeration channel. An air inlet is provided on the wall of the central tube. The upper end of the aeration pipe extends into the central tube and is connected to the aeration channel through the air inlet.

2. The membrane module capable of uniform aeration as described in claim 1, characterized in that: The central tube has a double-layer structure, with multiple hollow connecting columns between the inner and outer tubes. The interior of the connecting columns is an air passage connecting the air inlet and the aeration channel. The partition plate is fixed on the outer tube.

3. The membrane module capable of uniform aeration as described in claim 2, characterized in that: The upper end of the aeration pipe extends into the inner pipe and is sealed to the inner pipe by a sealing ring.

4. The membrane module capable of uniform aeration as described in claim 1, characterized in that: The membrane shell is fixed to the water inlet end cap as a whole. The water inlet end cap has a water inlet on the side and an air inlet at the bottom. The aeration pipe is placed inside the water inlet end cap and is connected to the air inlet.

5. A membrane module capable of uniform aeration as described in claim 1, characterized in that: The partition plate is provided with a number of first adhesive flow holes, which can connect the two sides of the partition plate; an arc plate is installed between two adjacent partition plates, and the arc plate is provided with a number of second adhesive flow holes, and all the arc plates are assembled into a circle.

6. A membrane module capable of uniform aeration as described in claim 5, characterized in that: The outer side of the partition plate is provided with a fixing post, and the two sides of the arc plate are provided with extended buckle parts, which are snapped onto the fixing post.

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