Hollow fiber membrane module

Abstract

The utility model discloses a hollow fiber membrane component, which belongs to the field of hollow fiber membranes, and comprises a water collecting pipe, support columns, an aeration main pipe, aeration branch pipes, an external thread pipe and a hollow fiber membrane piece, the support columns are fixed on the left side and the right side of the top of the aeration main pipe, and the water collecting pipe is fixed at the top ends of the support columns. The bottom of the water collecting pipe is fixedly communicated with a plurality of external threaded pipes, the top of the hollow fiber membrane part is in threaded connection with the external threaded pipes, the bottom end of the hollow fiber membrane part is a free end, the free end is located above the aeration main pipe and can freely swing, the top of the aeration main pipe is fixedly communicated with a plurality of aeration branch pipes, and the aeration branch pipes extend upwards. The aeration main pipe is arranged between the two adjacent hollow fiber membrane pieces and / or in the hollow fiber membrane pieces, and is communicated with external aeration equipment. According to the utility model, the hollow fiber membrane piece can be detached and replaced, and the whole equipment does not need to be replaced, so that more resources and cost are saved.

Description

Technical Field

[0001] The utility model belongs to the field of hollow fiber membranes, in particular to a hollow fiber membrane component. Background Art

[0002] Hollow fiber membrane components are mainly used for sewage treatment in municipal, electric power, steel, petrochemical, textile, food and other fields.

[0003] The hollow fiber membrane assembly with publication number CN206577605U comprises a water collecting pipe, a membrane fixing layer, a hollow fiber membrane bundle and an aeration pipe; the membrane fixing layer is arranged below the water collecting pipe, the hollow fiber membrane bundle is formed by a plurality of U-shaped membrane wires being aligned, the lower end of the U-shaped membrane wire can swing freely, and the upper end is sealed by the membrane fixing layer and connected to the water collecting pipe; the aeration pipe comprises a joint, a main pipe and a plurality of branch pipes, one end of the joint is connected to an air intake device, and the other end is connected to the main pipe, the joint is arranged above the water collecting pipe, the main pipe is arranged in the water collecting pipe, and the lower end of the main pipe passes through the water collecting pipe and is connected to the branch pipe; the branch pipes are evenly arranged between the U-shaped membrane wires and arranged in parallel with the U-shaped membrane wires, and a large number of aeration holes are arranged on the branch pipes. However, after long-term use, the hollow fiber membrane bundle still has dust and impurities that are difficult to be cleaned by aeration, which will cause the use effect of the hollow fiber membrane bundle to deteriorate. However, the hollow fiber membrane component and the water collecting pipe of the above-mentioned patent are fixedly connected as a whole. If the hollow fiber membrane bundle needs to be replaced, the entire device needs to be replaced, resulting in waste of resources and high costs. Utility Model Content

[0004] The purpose of the utility model is to provide a hollow fiber membrane component to overcome at least one of the above-mentioned defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a hollow fiber membrane component, comprising a water collecting pipe, a support column, an aeration main pipe, an aeration branch pipe, an externally threaded pipe, and a hollow fiber membrane component. Support columns are fixed on both sides of the top of the aeration main pipe, a water collecting pipe is fixed on the top of the support column, a plurality of externally threaded pipes are fixedly connected to the bottom of the water collecting pipe, the top of the hollow fiber membrane component is threadedly connected to the externally threaded pipe, the bottom end of the hollow fiber membrane component is a free end, the free end is located above the aeration main pipe and can swing freely, a plurality of aeration branch pipes are fixedly connected to the top of the aeration main pipe, the aeration branch pipes extend upward and are located between two adjacent hollow fiber membrane components and / or in the hollow fiber membrane component, and the aeration main pipe is connected to an external aeration device.

[0007] Preferably, the hollow fiber membrane component includes a membrane fixing block, a sealing ring, an internal threaded tube, and a plurality of hollow fiber membrane bundles. The bottom of the membrane fixing block is fixedly connected to the plurality of hollow fiber membrane bundles. The interior of the membrane fixing block has a first cavity. The top of the membrane fixing block has a protrusion protruding upward. The top wall of the membrane fixing block is fixed with an internal threaded tube, which surrounds the protrusion and is connected to the first cavity. The internal threaded tube is threadedly connected to the outside of the external threaded tube, and a sealing ring is arranged between the protrusion and the internal threaded tube.

[0008] Preferably, the hollow fiber membrane bundle is bent into a U shape, and a plurality of hollow fiber membrane bundles are distributed at equal intervals along the length direction of the membrane fixing block.

[0009] Preferably, the plurality of externally threaded pipes are distributed at equal intervals along the length direction of the water collecting pipe.

[0010] Preferably, the aeration branch pipe includes a first branch pipe and a second branch pipe, the first branch pipe is located between two adjacent hollow fiber membrane components, the second branch pipe is located in the middle of the hollow fiber membrane component, the first branch pipe is provided with a plurality of first aeration holes, and the second branch pipe is provided with a plurality of second aeration holes.

[0011] Preferably, the plurality of first aeration holes include a plurality of first aeration hole groups equidistantly distributed along the length direction of the first branch pipe, each first aeration hole group includes a plurality of first aeration holes equidistantly distributed along the circumference of the first branch pipe, and the plurality of second aeration holes include a plurality of second aeration hole groups equidistantly distributed along the length direction of the second branch pipe, each second aeration hole group includes a plurality of second aeration holes equidistantly distributed along the circumference of the second branch pipe.

[0012] Preferably, a plurality of third aeration holes are formed on the top wall of the aeration main pipe.

[0013] Preferably, the support column has a second cavity inside, and the inner side wall of the support column is provided with a fourth aeration hole, which is communicated with the second cavity.

[0014] The beneficial effects of the utility model are:

[0015] 1. The hollow fiber membrane components are screwed to the external threaded pipe to make the hollow fiber membrane components detachable. When the hollow fiber membrane bundle needs to be replaced, the hollow fiber membrane components can be disassembled and replaced without replacing the entire equipment, which saves more resources and costs.

[0016] 2. It can be combined at will, and hollow fiber membranes of different specifications can be replaced to meet different usage requirements, with wide applicability.

[0017] 3. The detachable threaded connection makes disassembly and assembly very convenient.

[0018] 4. By combining the hollow fiber membrane with a free end with the aeration main pipe arranged below the free end and the aeration branch pipe passing between two adjacent hollow fiber membranes and / or in the hollow fiber membrane, the hollow fiber membrane can be cleaned from bottom to top, from outside to inside, and from inside to outside, so that the cleaning is more comprehensive and thorough, and the overall aeration cleaning effect is better.

[0019] 5. The arrangement of the second cavity and the fourth aeration hole enables the support column to not only support the water collecting pipe, but also realize the lateral inward aeration, further improving the aeration and cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the matching structure of the externally threaded pipe and the hollow fiber membrane element of the utility model.

[0022] Figure 3 It is a left-side structural schematic diagram of the membrane fixing block, the internally threaded tube and the hollow fiber membrane bundle of the utility model.

[0023] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure of A.

[0024] Figure 5 It is a partial cross-sectional structural schematic diagram of the aeration main pipe of the utility model.

[0025] Figure 6 It is a partial cross-sectional structural schematic diagram of the support column of the utility model.

[0026] The markings in the attached drawings are: 1-water collecting pipe, 2-support column, 3-aeration main pipe, 4-aeration branch pipe, 5-external threaded pipe, 6-hollow fiber membrane, 61-membrane fixing block, 62-sealing ring, 63-internal threaded pipe, 64-hollow fiber membrane bundle, 65-first cavity, 66-protrusion, 41-first branch pipe, 42-second branch pipe, 411-first aeration hole, 421-second aeration hole, 31-third aeration hole, 21-second cavity, 22-fourth aeration hole. DETAILED DESCRIPTION

[0027] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0028] Contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] like Figures 1 to 6 As shown, a hollow fiber membrane assembly provided in this embodiment includes a water collecting pipe 1, a support column 2, an aeration main pipe 3, an aeration branch pipe 4, an externally threaded pipe 5, and a hollow fiber membrane member 6. Support columns 2 are fixed on both sides of the top of the aeration main pipe 3, the water collecting pipe 1 is fixed on the top of the support column 2, the bottom of the water collecting pipe 1 is fixedly connected with a plurality of externally threaded pipes 5, the top of the hollow fiber membrane member 6 is threadedly connected to the externally threaded pipe 5, the bottom end of the hollow fiber membrane member 6 is a free end, the free end is located above the aeration main pipe 3, and can swing freely, the top of the aeration main pipe 3 is fixedly connected with a plurality of aeration branch pipes 4, the aeration branch pipes 4 extend upward, and are located between two adjacent hollow fiber membrane members 6 and / or in the hollow fiber membrane member 6, and the aeration main pipe 3 is connected with an external aeration device. The hollow fiber membrane 6 is screwed to the external threaded tube 5 so that the hollow fiber membrane 6 is detachable. When the hollow fiber membrane bundle 64 needs to be replaced, the hollow fiber membrane 6 can be disassembled and replaced without replacing the entire equipment, which saves more resources and saves costs. It can be combined at will, and hollow fiber membranes 6 of different specifications can be replaced to meet different usage requirements, and it has wide applicability. The detachable threaded connection is very convenient for disassembly and assembly. Through the hollow fiber membrane 6 with a free end combined with the aeration main pipe 3 arranged below the free end, and the aeration branch pipe 4 passing between two adjacent hollow fiber membranes 6 and / or in the hollow fiber membrane 6, the hollow fiber membrane 6 can be cleaned from bottom to top, from outside to inside, and from inside to outside, and the cleaning is more comprehensive and thorough, so that the overall aeration cleaning effect is better.

[0030] The hollow fiber membrane member 6 comprises a membrane fixing block 61, a sealing ring 62, an internally threaded tube 63, and a plurality of hollow fiber membrane bundles 64. The bottom of the membrane fixing block 61 is fixedly connected with a plurality of hollow fiber membrane bundles 64. The interior of the membrane fixing block 61 has a first cavity 65. The top of the membrane fixing block 61 has a protrusion 66 protruding upward. The top wall of the membrane fixing block 61 is fixed with an internally threaded tube 63. The internally threaded tube 63 surrounds the protrusion 66 and is connected with the first cavity 65. The internally threaded tube 63 is screwed to the outside of the externally threaded tube 5. A sealing ring 62 is arranged between the protrusion 66 and the internally threaded tube 63. The sealing ring 62 plays a sealing role. When the utility model is used, it is immersed in the sewage to be cleaned, and the aeration main pipe 3 is connected with the external aeration equipment. The treated water obtained after the sewage is filtered through the hollow fiber membrane bundle 64 enters the first cavity 65 for collection, and enters the water collecting pipe 1 through the externally threaded tube 5 and is collected in the water collecting tank. When the hollow fiber membrane 6 needs to be disassembled, it is only necessary to screw the membrane fixing block 61 to drive the internal threaded tube 63 to rotate, so that the internal threaded tube 63 and the external threaded tube 5 can be disassembled and assembled, and the hollow fiber membrane 6 is completed, which is convenient for disassembly and assembly.

[0031] The hollow fiber membrane bundle 64 is bent into a U shape, and a plurality of hollow fiber membrane bundles 64 are evenly spaced along the length direction of the membrane fixing block 61. A plurality of externally threaded tubes 5 are evenly spaced along the length direction of the water collecting pipe 1, that is, a plurality of hollow fiber membrane members 6 are evenly spaced along the length direction of the water collecting pipe 1. By combining the evenly spaced hollow fiber membrane members 6 with the evenly spaced hollow fiber membrane bundles 64, a better filtering effect is achieved.

[0032] The aeration branch pipe 4 includes a first branch pipe 41 and a second branch pipe 42. The first branch pipe 41 is located between two adjacent hollow fiber membrane members 6, and the second branch pipe 42 is located in the middle of the hollow fiber membrane member 6. The first branch pipe 41 is provided with a plurality of first aeration holes 411, and the second branch pipe 42 is provided with a plurality of second aeration holes 421. The plurality of first aeration holes 411 include a plurality of first aeration hole groups equidistantly distributed along the length direction of the first branch pipe 41, and each first aeration hole group includes a plurality of first aeration holes 411 equidistantly distributed along the circumference of the first branch pipe 41. The plurality of second aeration holes 421 include a plurality of second aeration hole groups equidistantly distributed along the length direction of the second branch pipe 42, and each second aeration hole group includes a plurality of second aeration holes 421 equidistantly distributed along the circumference of the second branch pipe 42. By providing the first aeration holes 411 and the second aeration holes 421 , the hollow fiber membrane member 6 can be aerated and cleaned in all directions from outside to inside and from inside to outside.

[0033] A plurality of third aeration holes 31 are provided on the top wall of the aeration main pipe 3, and the third aeration holes 31 are used to perform aeration and cleaning operations from bottom to top.

[0034] The support column 2 has a second cavity 21 inside, and a fourth aeration hole 22 is provided on the inner wall of the support column 2, and the fourth aeration hole 22 is connected to the second cavity 21. The second cavity 21 and the fourth aeration hole 22 are arranged so that the support column 2 not only supports the water collecting pipe 1, but also realizes the lateral inward aeration, thereby further improving the aeration cleaning efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hollow fiber membrane module, characterized in that: It includes a water collecting pipe, a supporting column, an aeration main pipe, an aeration branch pipe, an externally threaded pipe, and a hollow fiber membrane component; Support columns are fixed on both the left and right sides of the top of the aeration main pipe, and a water collecting pipe is fixed on the top of the support column; The bottom of the water collecting pipe is fixedly connected with a plurality of external threaded pipes; The top of the hollow fiber membrane is threadedly connected to the external threaded pipe, and the bottom end of the hollow fiber membrane is a free end, which is located above the aeration main pipe and can swing freely; The top of the aeration main pipe is fixedly connected with a plurality of aeration branch pipes, the aeration branch pipes extend upward and are located between two adjacent hollow fiber membrane components and / or inside the hollow fiber membrane components; The aeration main pipe is communicated with external aeration equipment.

2. The hollow fiber membrane module according to claim 1, characterized in that: The hollow fiber membrane component includes a membrane fixing block, a sealing ring, an internally threaded tube, and a plurality of hollow fiber membrane bundles; The bottom of the membrane fixing block is fixedly connected to a plurality of hollow fiber membrane bundles; The membrane fixing block has a first cavity inside, and the top of the membrane fixing block has a protruding portion protruding upward. An internal threaded tube is fixed to the top wall of the membrane fixing block, and the internal threaded tube surrounds the protruding portion and is connected to the first cavity. The internal threaded tube is threadedly connected to the outside of the external threaded tube, and a sealing ring is arranged between the protruding portion and the internal threaded tube.

3. The hollow fiber membrane module according to claim 2, characterized in that: The hollow fiber membrane bundle is bent into a U shape; The plurality of hollow fiber membrane bundles are distributed at equal intervals along the length direction of the membrane fixing block.

4. The hollow fiber membrane module according to claim 1, characterized in that: The plurality of externally threaded pipes are distributed at equal intervals along the length direction of the water collecting pipe.

5. The hollow fiber membrane module according to claim 3, characterized in that: The aeration branch pipe includes a first branch pipe and a second branch pipe; The first branch pipe is located between two adjacent hollow fiber membrane elements; The second branch pipe is located in the middle of the hollow fiber membrane element; The first branch pipe is provided with a plurality of first aeration holes; The second branch pipe is provided with a plurality of second aeration holes.

6. The hollow fiber membrane module according to claim 5, characterized in that: The plurality of first aeration holes include a plurality of groups of first aeration hole groups equidistantly distributed along the length direction of the first branch pipe, and each group of the first aeration hole groups includes a plurality of first aeration holes equidistantly distributed along the circumference direction of the first branch pipe; The plurality of second aeration holes include a plurality of second aeration hole groups equidistantly distributed along the length direction of the second branch pipe, and each of the second aeration hole groups includes a plurality of second aeration holes equidistantly distributed along the circumference of the second branch pipe.

7. The hollow fiber membrane module according to claim 1, characterized in that: The top wall of the aeration main pipe is provided with a plurality of third aeration holes.

8. The hollow fiber membrane module according to claim 1, characterized in that: The support column has a second cavity inside, and the inner side wall of the support column is provided with a fourth aeration hole, which is communicated with the second cavity.

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