An outer pressure type hollow fiber membrane module

Abstract

The utility model relates to hollow fiber module technical field, and disclose a kind of outer pressure type hollow fiber membrane module, including shell, the rear side of shell is fixedly connected with fixed block, the rear side of fixed block is fixedly connected with water inlet pipeline, water inlet pipeline is connected with the inside of shell and fixed block, the front side of shell is provided with dismounting block, the front side of dismounting block is fixedly connected with water outlet pipeline, water outlet pipeline is connected with the inside of shell and dismounting block, the outer surface of dismounting block is fixedly connected with antiskid strip, the inside of shell is provided with several hollow fiber membrane bodies, and dismounting mechanism is arranged on shell and dismounting block, hollow fiber membrane body can be disassembled and replaced by dismounting mechanism, by this mode, when needing to replace, only internal hollow fiber membrane body can be replaced, further make the shell of module can be recycled, further avoid the waste of resources, also reduce the use cost of module.

Description

Technical Field

[0001] This utility model relates to the field of hollow fiber module technology, specifically an external pressure hollow fiber membrane module. Background Technology

[0002] Hollow fiber ultrafiltration membrane modules are mainly composed of two parts: hollow fibers and membrane shell. According to the different water inlet methods, hollow fiber ultrafiltration membranes are divided into two types: internal pressure type and external pressure type. When the external pressure type hollow fiber ultrafiltration membrane is working, the water to be treated is supplied to the outside of the hollow fiber membrane. Under pressure, the water is filtered from the outside of the membrane to the inside (hollow part), while impurities are trapped on the outside of the membrane.

[0003] Existing external pressure hollow fiber membrane modules are generally designed as a single unit, meaning the filter element and the membrane housing are glued together. The final membrane element is not removable, which means that when replacing it, the entire external pressure hollow fiber membrane module must be disassembled. However, during operation, the module housing is not significantly affected, so the replaced module housing is often in a usable state. Replacing the housing directly is a waste of resources and increases the cost of using the module. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an externally pressurized hollow fiber membrane module that allows for the replacement of only the internal hollow fiber membrane when replacement is needed. This enables the outer shell of the module to be recycled, thereby avoiding resource waste and reducing the cost of using the module.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an external pressure hollow fiber membrane module, including a shell, a fixing block fixedly connected to the rear side of the shell, and a water inlet pipe fixedly connected to the rear side of the fixing block, the water inlet pipe being connected to the interior of the shell and the fixing block;

[0008] A disassembly block is provided on the front side of the outer casing. A water outlet pipe is fixedly connected to the front side of the disassembly block. The water outlet pipe is connected to the interior of the outer casing and the disassembly block.

[0009] The outer surface of the disassembly block is fixedly connected with anti-slip strips, and the interior of the outer shell is provided with several hollow fiber membrane bodies. The feature is that the outer shell and the disassembly block are provided with disassembly and assembly mechanisms, which can disassemble and replace the hollow fiber membrane bodies.

[0010] The disassembly and assembly mechanism includes a connecting plate, a connecting threaded groove, two limit grooves, two limit blocks, a rubber pad, and a connecting threaded ring.

[0011] Preferably, the connecting plate is disposed inside the housing, the connecting thread groove is formed on the front side of the housing, and the connecting plate is disposed inside the connecting thread groove.

[0012] Preferably, the front ends of several hollow fiber membrane bodies extend through the connecting plate, and the several hollow fiber membrane bodies are fixedly connected to the connecting plate, with two limiting grooves formed on the rear wall of the connecting thread groove.

[0013] Preferably, the two limiting grooves are arranged symmetrically from top to bottom, and the two limiting blocks are fixedly connected to the rear side of the connecting plate, with the two limiting blocks arranged symmetrically from top to bottom.

[0014] Preferably, the two limiting blocks are adapted to the two limiting grooves to form a limiting fixation, and the rubber pad is fixedly connected to the front side of the connecting plate. The rubber pad is an annular shape adapted to the connecting thread groove.

[0015] Preferably, the connecting threaded ring is fixedly connected to the rear side of the disassembly block, and the connecting threaded ring and the connecting threaded groove are threadedly connected.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an external pressure hollow fiber membrane module, which has the following beneficial effects:

[0018] (1) In this external pressure hollow fiber membrane module, the rotating disassembly block and the presence of anti-slip strips increase the friction between the disassembly block and the hand, making it easier to disassemble and install the disassembly block. After that, the disassembly block can be removed, and then the hollow fiber membrane body can be moved forward to take it out for replacement. The hollow fiber membrane body will then drive the connecting plate to move and be taken out synchronously. Then, the new hollow fiber membrane body and the connecting plate are placed inside the shell. The connecting plate will be inside the connecting thread groove, and the two limiting blocks will move into the two limiting grooves respectively, which will play a role in limiting and fixing the hollow fiber membrane body and the connecting plate. At the same time, the disassembly block is threaded together with the shell. In this way, when replacement is needed, only the internal hollow fiber membrane body can be replaced, so that the shell of the module can be recycled, thereby avoiding waste of resources and reducing the cost of using the module.

[0019] (2) When the disassembly block is connected to the outer shell, the connecting threaded ring will come into contact with the rubber pad, and the connecting threaded ring will squeeze the rubber pad, thereby ensuring the sealing of the connection between the connecting threaded ring and the connecting plate, and thus ensuring the sealing of the external pressure hollow fiber membrane module during operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an external pressure hollow fiber membrane module according to the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure of the disassembly and assembly block of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal connection structure of the outer shell of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Fixing block; 3. Inlet pipe; 4. Disassembly block; 5. Outlet pipe; 6. Anti-slip strip; 7. Hollow fiber membrane body; 8. Connecting plate; 9. Connecting threaded groove; 10. Limiting groove; 11. Limiting block; 12. Rubber pad; 13. Connecting threaded ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 3 This utility model provides a new technical solution: an external pressure hollow fiber membrane module, including a shell 1, a fixing block 2 fixedly connected to the rear side of the shell 1, a water inlet pipe 3 fixedly connected to the rear side of the fixing block 2, the water inlet pipe 3 communicating with the interior of the shell 1 and the fixing block 2, a disassembly block 4 provided on the front side of the shell 1, a water outlet pipe 5 fixedly connected to the front side of the disassembly block 4, the water outlet pipe 5 communicating with the interior of the shell 1 and the disassembly block 4, an anti-slip strip 6 fixedly connected to the outer surface of the disassembly block 4, a plurality of hollow fiber membrane bodies 7 provided inside the shell 1, the rear sides of the plurality of hollow fiber membrane bodies 7 are all in a closed state, a disassembly mechanism is provided on the shell 1 and the disassembly block 4, the hollow fiber membrane bodies 7 can be disassembled and replaced by the disassembly mechanism, the disassembly mechanism includes a connecting plate 8, a connecting threaded groove 9, two limiting grooves 10, two limiting blocks 11, a rubber pad 12 and a connecting threaded ring 13.

[0026] Furthermore, the connecting plate 8 is disposed inside the outer shell 1, the connecting thread groove 9 is opened on the front side of the outer shell 1, the connecting plate 8 is disposed inside the connecting thread groove 9, the front ends of several hollow fiber membrane bodies 7 extend through the connecting plate 8, and several hollow fiber membrane bodies 7 are fixedly connected to the connecting plate 8, two limiting grooves 10 are opened on the rear wall of the connecting thread groove 9, the two limiting grooves 10 are arranged symmetrically from top to bottom, two limiting blocks 11 are fixedly connected to the rear side of the connecting plate 8, the two limiting blocks 11 are arranged symmetrically from top to bottom, the two limiting blocks 11 are adapted to the two limiting grooves 10 to form a limiting fixation, the rubber pad 12 is fixedly connected to the front side of the connecting plate 8, the rubber pad 12 is an annular shape adapted to the connecting thread groove 9, and the connecting thread ring 13 is fixedly connected to the rear side of the disassembly block 4, and the connecting thread ring 13 is threadedly connected to the connecting thread groove 9.

[0027] Furthermore, when the hollow fiber membrane body 7 needs to be replaced, the operator rotates the disassembly block 4. The anti-slip strip 6 increases the friction between the disassembly block 4 and the hand, facilitating the disassembly and installation of the disassembly block 4. The disassembly block 4 then drives the connecting threaded ring 13 to rotate synchronously, and the connecting threaded ring 13 connects with the connecting threaded groove 9. This releases the threaded connection between the disassembly block 4 and the outer shell 1, allowing the disassembly block 4 to be removed. The hollow fiber membrane body 7 is then moved forward and removed for replacement. The hollow fiber membrane body 7 then drives the connecting plate 8 to move and be removed synchronously. The new hollow fiber membrane body 7 and connecting plate 8 are then placed inside the outer shell 1, with the connecting plate 8 positioned inside the connecting threaded groove 9. The connecting plate 8 is then rotated... The two limiting blocks 11 are aligned with the two limiting grooves 10, and then the two limiting blocks 11 move into the two limiting grooves 10 respectively, thereby limiting and fixing the hollow fiber membrane body 7 and the connecting plate 8. At the same time, the disassembly block 4 is threadedly connected to the outer shell 1. At this time, the connecting threaded ring 13 will contact the rubber gasket 12, and the connecting threaded ring 13 will squeeze the rubber gasket 12, thereby ensuring the sealing of the connection between the connecting threaded ring 13 and the connecting plate 8, and thus ensuring the sealing of the external pressure hollow fiber membrane module during operation. In this way, when replacement is required, only the internal hollow fiber membrane body 7 can be replaced, so that the outer shell 1 of the module can be recycled, thereby avoiding waste of resources and reducing the cost of using the module.

[0028] Working principle: When the hollow fiber membrane body 7 needs to be replaced, the operator rotates the disassembly block 4. The anti-slip strip 6 increases the friction between the disassembly block 4 and the hand, facilitating the disassembly and installation of the disassembly block 4. The disassembly block 4 then drives the connecting threaded ring 13 to rotate synchronously. The connecting threaded ring 13 then connects with the connecting threaded groove 9, thus releasing the threaded connection between the disassembly block 4 and the outer shell 1. The disassembly block 4 can then be removed, and the hollow fiber membrane body 7 can be moved forward to remove it for replacement. The hollow fiber membrane body 7 then drives the connecting plate 8 to move and be removed synchronously. Finally, the new hollow fiber membrane body 7 and... The connecting plate 8 is placed inside the outer casing 1 and is located inside the connecting threaded groove 9. By rotating the connecting plate 8, the two limiting blocks 11 are aligned with the two limiting grooves 10. The two limiting blocks 11 then move into the two limiting grooves 10 respectively, thereby limiting and fixing the hollow fiber membrane body 7 and the connecting plate 8. At the same time, the disassembly block 4 is threadedly connected to the outer casing 1. At this time, the connecting threaded ring 13 contacts the rubber gasket 12, and the connecting threaded ring 13 squeezes the rubber gasket 12, thereby ensuring the sealing of the connection between the connecting threaded ring 13 and the connecting plate 8, and thus ensuring the sealing of the external pressure hollow fiber membrane module during operation.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An external pressure hollow fiber membrane module, comprising a shell (1), a fixing block (2) fixedly connected to the rear side of the shell (1), a water inlet pipe (3) fixedly connected to the rear side of the fixing block (2), and the water inlet pipe (3) communicating with the interior of the shell (1) and the fixing block (2); A disassembly block (4) is provided on the front side of the outer shell (1). A water outlet pipe (5) is fixedly connected to the front side of the disassembly block (4). The water outlet pipe (5) is connected to the interior of the outer shell (1) and the disassembly block (4). The outer surface of the disassembly block (4) is fixedly connected with anti-slip strips (6), and the interior of the outer shell (1) is provided with several hollow fiber membrane bodies (7), characterized in that: The outer shell (1) and the disassembly block (4) are provided with disassembly and assembly mechanisms, through which the hollow fiber membrane body (7) can be disassembled and replaced; The disassembly and assembly mechanism includes a connecting plate (8), a connecting threaded groove (9), two limiting grooves (10), two limiting blocks (11), a rubber pad (12), and a connecting threaded ring (13).

2. The external pressure hollow fiber membrane module according to claim 1, characterized in that: The connecting plate (8) is located inside the outer shell (1), and the connecting thread groove (9) is located on the front side of the outer shell (1). The connecting plate (8) is located inside the connecting thread groove (9).

3. The external pressure hollow fiber membrane module according to claim 1, characterized in that: The front ends of several hollow fiber membrane bodies (7) extend through the connecting plate (8), and several hollow fiber membrane bodies (7) are fixedly connected to the connecting plate (8). Two limiting grooves (10) are opened on the rear wall of the connecting thread groove (9).

4. The external pressure hollow fiber membrane module according to claim 3, characterized in that: The two limiting grooves (10) are arranged symmetrically up and down, and the two limiting blocks (11) are fixedly connected to the rear side of the connecting plate (8). The two limiting blocks (11) are arranged symmetrically up and down.

5. The external pressure hollow fiber membrane module according to claim 4, characterized in that: The two limiting blocks (11) are adapted to the two limiting grooves (10) to form a limiting fixation. The rubber pad (12) is fixedly connected to the front side of the connecting plate (8). The rubber pad (12) is an annular shape adapted to the connecting thread groove (9).

6. The external pressure hollow fiber membrane module according to claim 1, characterized in that: The connecting threaded ring (13) is fixedly connected to the rear side of the disassembly block (4), and the connecting threaded ring (13) is threadedly connected to the connecting threaded groove (9).

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