High-turbidity-resistant hollow fiber membrane module applicable to high-COD (Chemical Oxygen Demand) environment

Abstract

The utility model discloses a high-turbidity-resistant hollow fiber membrane module suitable for a high-COD environment, which comprises a base, a membrane shell is arranged at the top of the base, a top seat is detachably arranged at the top of the membrane shell, a fixed seat is arranged at the bottom of the top seat, a plurality of filter membrane modules are arranged at the bottom of the fixed seat, and a mounting and dismounting module is arranged between the membrane shell and the fixed seat. The mounting and dismounting assembly comprises four limiting blocks, the four limiting blocks are movably connected to the outer side of the membrane shell, limiting grooves are formed in the four sides of the fixing base, and the limiting blocks are matched with the limiting grooves in size and position.

Description

Technical Field

[0001] The present application relates to the field of fiber membrane components, and in particular to a high-turbidity resistant hollow fiber membrane component suitable for use in high COD environments. Background Art

[0002] Chemical oxygen demand, or COD, is a commonly used comprehensive indicator for evaluating the degree of water pollution. In a high COD environment, the concentration of impurities such as organic matter and microorganisms is relatively high. The hollow fiber membrane module uses a hollow fiber membrane as the filtration medium and uses the micropores on the membrane wall for screening and adsorption separation. Through the filtering effect of the membrane module, it can effectively intercept impurities in the wastewater while allowing solvents and small molecules to pass through, thereby achieving wastewater purification.

[0003] However, in the process of implementing relevant technical solutions, it was found that at least the following technical problems exist: when the hollow fiber membrane assembly filters highly turbid water through hollow fiber membrane filaments, the hollow fiber membrane filaments are generally cylindrical components arranged at the bottom of the top seat. After long-term use, many impurities will adhere to the hollow fiber membrane filaments, causing blockage or damage. The top seat and the hollow fiber membrane filaments need to be removed from the membrane shell. The top seat and the membrane shell are connected by bolts, which are inconvenient to disassemble. It is not convenient to clean and replace the blocked or damaged hollow fiber membrane filaments, which affects the filtration efficiency of highly turbid water. Utility Model Content

[0004] The present application solves the problem of inconvenient disassembly of hollow fiber membranes in the prior art by providing a high-turbidity resistant hollow fiber membrane assembly suitable for high COD environments, and achieves the effect of quickly disassembling the top seat and hollow fiber membranes.

[0005] The present application provides a high-turbidity resistant hollow fiber membrane assembly suitable for high COD environments, comprising a base, a membrane shell being provided on the top of the base, a top seat being detachably provided on the top of the membrane shell, a fixed seat being provided at the bottom of the top seat, a plurality of filter membrane assemblies being provided at the bottom of the fixed seat, an installation and disassembly component being provided between the membrane shell and the fixed seat, the installation and disassembly component comprising four limit blocks, the four limit blocks being movably connected to the outer side of the membrane shell, limit grooves being provided on the four sides of the fixed seat, and the limit blocks matching the size and position of the limit grooves.

[0006] Furthermore, the installation and removal assembly also includes: a knob fixedly arranged on the outside of the limit block; a spring sleeved on the outside of the limit block, and the spring is arranged between the membrane shell and the knob.

[0007] Furthermore, a connecting seat is provided at the bottom of the four limit blocks, and the connecting seat is fixedly provided on the outside of the membrane shell. A clamping block is fixedly provided on the outside of the knob, and a clamping slot is provided on the top of the connecting seat. After the clamping block is rotated, it is clamped into the inside of the clamping slot.

[0008] Furthermore, the bottom of the fixing seat is in the shape of a frustum, and the inclined surface of the bottom of the fixing seat is in contact with and connected to the limiting block.

[0009] Furthermore, multiple filter membrane assemblies are arranged in a ring at the bottom of the fixed seat, and the filter membrane assembly includes: a filter mesh layer, which is arranged at the bottom of the fixed seat, and the membrane holes of the filter mesh layer are asymmetric wedge-shaped membrane holes; multiple hollow fiber bundles are arranged in a ring inside the filter mesh layer.

[0010] Furthermore, a water inlet is provided on one side of the bottom of the base, a water production port is provided on the top of the top seat, and a concentrated water port is provided on the side of the top of the top seat.

[0011] The technical solution provided by this application has at least the following technical effects or advantages:

[0012] The limit block is inserted into the limit groove of the fixing seat by the elastic force of the spring, so that the top seat and the membrane shell are fixed. By pulling out the knob and rotating the block into the slot, the limit block is moved out of the limit groove, and the fixation can be released. The top seat and the filter membrane assembly can be taken out of the membrane shell, and the filter mesh layer and the hollow fiber bundle can be replaced and cleaned, so that the filter membrane assembly will not be affected by blockage and damage after long-term use, thereby improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the hollow fiber membrane assembly in the embodiment of the present application;

[0014] Figure 2 This is a schematic structural diagram of the filtration membrane assembly in the embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing seat in the embodiment of the present application;

[0016] Figure 4 This is a schematic structural diagram of the fixing seat in an embodiment of the present application;

[0017] In the figure: 10, base; 20, membrane shell; 30, top seat; 40, fixing seat; 41, limiting groove; 50, filter membrane assembly; 60, installation and removal assembly; 70, water inlet; 80, water outlet; 90, concentrate outlet; 51, filter mesh layer; 52, hollow fiber bundle; 61, limiting block; 62, knob; 63, spring; 64, clamping block; 65, connecting seat; 66, clamping groove. DETAILED DESCRIPTION

[0018] The embodiment of the present application discloses a high-turbidity resistant hollow fiber membrane assembly suitable for high COD environments. The elastic force of the spring 63 drives the limit block 61 to extend into the limit groove 41 on the fixed seat 40, thereby fixing the fixed seat 40 on the membrane shell 20. The limit block 61 is driven outward by the knob 62. The rotation of the knob 62 causes the block 64 to be inserted into the slot 66, so that the top seat 30 and the filter membrane assembly 50 can be quickly taken out of the membrane shell 20, making it convenient to clean and replace the fixed seat 40.

[0019] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Please refer to Figure 1 and Figure 2 The present embodiment provides a high-turbidity resistant hollow fiber membrane assembly suitable for use in a high COD environment, comprising a base 10, a membrane shell 20 being provided on the top of the base 10, a top seat 30 being detachably provided on the top of the membrane shell 20, a fixing seat 40 being provided at the bottom of the top seat 30, a plurality of filter membrane assemblies 50 being provided at the bottom of the fixing seat 40, the plurality of filter membrane assemblies 50 being arranged in a ring at the bottom of the fixing seat 40, the filter membrane assembly 50 comprising a filter mesh layer 51 and a hollow fiber bundle 52, the filter mesh layer 51 being provided at the bottom of the fixing seat 40, and the membrane pores of the filter mesh layer 51 being asymmetric wedge-shaped membrane pores, which can intercept sewage on the surface of the membrane filaments so that the internal pores will not be blocked. A plurality of hollow fiber bundles 52 are arranged in a ring inside the filter mesh layer 51. A water inlet 70 is provided on one side of the bottom of the base 10, a water outlet 80 is provided on the top of the top seat 30, and a concentrated water outlet 90 is provided on the side of the top of the top seat 30. During the water production operation, a circulating cross-flow air scrubbing method is adopted so that the pollutants intercepted on the surface of the membrane fibers are continuously washed away to prevent the continuous accumulation of pollutants. Highly turbid water enters the base 10 and the membrane shell 20 from the water inlet 70, is sucked upward into the membrane shell 20 by the pump body at the top, and is filtered by the filter membrane assembly 50 on the membrane shell 20. The filtered clean water is output from the water outlet 80 at the top, and the treated high-concentration wastewater is discharged from the concentrated water outlet 90.

[0021] Please refer to Figure 1-Figure 4, a mounting assembly 60 is provided between the membrane shell 20 and the fixed seat 40, and the mounting assembly 60 includes four limit blocks 61, a knob 62, a spring 63, a card block 64, and a connecting seat 65. The four limit blocks 61 are all movably connected to the outside of the membrane shell 20, and the four sides of the fixed seat 40 are provided with limit grooves 41. The limit blocks 61 match the size and position of the limit grooves 41. The shape of the bottom of the fixed seat 40 is a frustum, and the inclined surface of the bottom of the fixed seat 40 is in contact with the limit block 61. The knob 62 is fixedly arranged on the outside of the limit block 61, and the spring 63 is sleeved on the limit block 61 to drive the outside, and the spring 63 is arranged on the membrane The cone at the bottom of the fixing seat 40 is passed between the shell 20 and the knob 62, so that when the fixing seat 40 is extended into the membrane shell 20, the inclined position of the bottom of the fixing seat 40 can squeeze the limit block 61 extending into the membrane shell 20, so that the limit block 61 is forced to move outward, so that the spring 63 is stretched, and the elastic force of the spring 63 drives the limit block 61 to extend into the limit groove 41 when the limit block 61 is opposite to the limit groove 41, so that the membrane shell 20 and the fixing seat 40 are fixed together, and the filter membrane assembly 50 at the bottom of the fixing seat 40 is installed in the membrane shell 20, so that the filter membrane assembly 50 can filter highly turbid water normally.

[0022] Please refer to Figure 1-Figure 4 The locking block 64 is engaged with the inner part of the locking groove 66 after the locking block 64 is rotated, and the locking block 61 is moved outward by pulling the knob 62, so that the locking block 61 is separated from the limiting groove 41, thereby releasing the fixation between the membrane shell 20 and the fixing seat 40. By rotating the knob 62, the locking block 64 on the outer side of the knob 62 is rotated into the locking groove 66 on the connecting seat 65, so that the knob 62 is stuck, so that the limiting block 61 will not extend into the limiting groove 41 due to the elastic force of the spring 63, so that the fixing seat 40 can be smoothly taken out of the membrane shell 20, thereby smoothly cleaning and replacing the filter membrane assembly 50 at the bottom of the fixing seat 40, preventing the filter pores from being blocked by impurities on the filter membrane assembly 50 and the filter membrane assembly 50 from being damaged and affecting the normal filtering work.

[0023] This application can explain its functional principles through the following operation methods:

[0024] When in use, the top seat 30 and the fixing seat 40 are installed on the membrane shell 20 from the top of the membrane shell 20, and the truncated cone inclined surface at the bottom of the fixing seat 40 contacts the limit blocks 61 on the four sides. As the fixing seat 40 moves downward, the inclined surface pushes the limit blocks 61 on the four sides to move outward, so that the fixing seat 40 can be smoothly placed in the membrane shell 20, and the spring 63 between the knob 62 and the membrane shell 20 is stretched, and the filter membrane assembly 50 at the bottom of the fixing seat 40 is smoothly installed in the membrane shell 20. High turbidity water enters the base 10 and the membrane shell 20 from the water inlet 70 on the bottom side, and the water outlet 80 is connected to the pump body. The pump body and water input cause the high turbidity water to rise along the membrane shell 20, and the high turbidity water is filtered by the hollow fiber bundle 52 in the multi-layer filter membrane assembly 50 in the membrane shell 20. The asymmetric wedge-shaped membrane holes on the filter mesh layer 51 can intercept sewage on the membrane wire surface, so that the internal holes will not be blocked. Plug, purified water is discharged from the water outlet 80, and the treated high-concentration wastewater is discharged from the concentrated water outlet 90. After long-term use, when the filter membrane assembly 50 needs to be cleaned and replaced, the four knobs 62 are pulled outward one by one, so that the knob 62 drives the limit block 61 to move outward from the limit groove 41, thereby releasing the fixation between the membrane shell 20 and the fixing seat 40, and then the knob 62 is rotated so that the block 64 on the outside of the knob 62 is rotated into the groove 66 at the top of the connecting seat 65, and the knob 62 is stuck, so that the elastic force of the spring 63 will not cause the limit block 61 to be reinserted into the limit groove 41, so that the top seat 30 and the filter membrane assembly 50 can be smoothly taken out of the membrane shell 20, and the filter membrane assembly 50 is replaced and cleaned to prevent the filter holes from being blocked by impurities on the filter membrane assembly 50 and the filter membrane assembly 50 from being damaged and affecting the normal filtration work.

[0025] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0026] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment, comprising a base (10), a membrane shell (20) being provided on the top of the base (10), characterized in that: The top of the membrane shell (20) is detachably provided with a top seat (30), the bottom of the top seat (30) is provided with a fixed seat (40), the bottom of the fixed seat (40) is provided with a plurality of filter membrane assemblies (50), and an installation and disassembly component (60) is provided between the membrane shell (20) and the fixed seat (40), and the installation and disassembly component (60) includes four limit blocks (61), and the four limit blocks (61) are movably connected to the outer side of the membrane shell (20), and the four sides of the fixed seat (40) are provided with limit grooves (41), and the size and position of the limit blocks (61) match the limit grooves (41).

2. The high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment according to claim 1, characterized in that: The installation and removal assembly (60) further comprises: A knob (62) is fixedly arranged on the outer side of the limit block (61); The spring (63) is sleeved on the outer side of the limit block (61), and the spring (63) is arranged between the membrane shell (20) and the knob (62).

3. The high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment according to claim 2, characterized in that: A connecting seat (65) is provided at the bottom of the four limit blocks (61), and the connecting seat (65) is fixedly provided on the outside of the membrane shell (20). A clamping block (64) is fixedly provided on the outside of the knob (62), and a clamping slot (66) is provided on the top of the connecting seat (65). After the clamping block (64) is rotated, it is clamped into the inside of the clamping slot (66).

4. The high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment according to claim 1, characterized in that: The bottom of the fixing seat (40) is in the shape of a truncated cone, and the inclined surface of the bottom of the fixing seat (40) is in contact with and connected to the limiting block (61).

5. The high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment according to claim 1, characterized in that: A plurality of the filter membrane assemblies (50) are arranged in a ring shape at the bottom of the fixing seat (40), and the filter membrane assembly (50) includes: A filter mesh layer (51) is arranged at the bottom of the fixing seat (40), and the membrane holes of the filter mesh layer (51) are asymmetric wedge-shaped membrane holes; A plurality of hollow fiber bundles (52) are arranged in a ring shape inside the filter mesh layer (51).

6. The high turbidity resistant hollow fiber membrane module suitable for use in a high COD environment according to claim 1, characterized in that: A water inlet (70) is provided on one side of the bottom of the base (10), a water outlet (80) is provided on the top of the top seat (30), and a concentrated water outlet (90) is provided on the side of the top of the top seat (30).

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