Membrane filament distribution frame for column type membrane module
By setting "<" shaped flow holes and limiting grooves on the membrane fiber distribution frame, the problem of poor resin adhesion is solved, achieving higher bonding strength and adaptability, and making it suitable for different membrane fiber processing methods of column membrane modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU WARD PLASTIC CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-01
AI Technical Summary
The existing membrane fiber distribution frame has poor adhesion to the resin adhesive, which easily leads to delamination problems, and it is difficult to adapt to the needs of different membrane fiber processing methods.
A membrane fiber distribution frame was designed, including a central tube, a partition plate and an arc plate. "<" shaped glue flow holes were set to enhance the glue adhesion. Through the cooperation of limiting members and limiting grooves, it can adapt to different membrane fiber processing methods.
It improves the bonding strength between the resin adhesive and the membrane fiber distribution frame, avoids delamination, and is applicable to different membrane fiber processing technologies, thus improving overall strength and versatility.
Smart Images

Figure CN224180647U_ABST
Abstract
Description
A membrane fiber distribution frame for column membrane modules Technical Field
[0001] This utility model belongs to the field of column membrane technology, and specifically relates to a membrane fiber distribution frame for column membrane modules. Background Technology
[0002] Hollow fiber column membrane modules are high-efficiency separation devices based on hollow fiber membrane technology, widely used in biopharmaceuticals, water treatment, food and beverage processing, and gas separation. Their core features include high specific surface area, low shear force, and modular design, enabling precise molecular-level separation and concentration. Inside the hollow fiber column membrane module, membrane fibers are fixed to membrane fiber distribution frames at both ends, and end-sealed with resin to form resin end faces. This allows raw water to enter the membrane housing cavity through one end of the column membrane module and be filtered by the membrane fibers. The filtered concentrate is discharged from the concentrate outlet of the hollow fiber column membrane module, while the permeate, i.e., the product water, flows out from the product water outlet.
[0003] The membrane fiber distribution frame increases resin strength, enhancing the strength of the resin end faces under water flow impact, and also serves a water distribution function. The frame has multiple zones, each filled with membrane fibers. The frame is typically made of plastic, which has relatively poor adhesion to the resin adhesive, making it prone to delamination. Summary of the Invention
[0004] To address the aforementioned issues, this invention provides a membrane fiber distribution frame for columnar membrane modules, which enhances the bond between the resin adhesive and the membrane fiber distribution frame, thereby improving overall strength.
[0005] Therefore, the technical solution of this utility model is: a membrane fiber distribution frame for a column-type membrane module, including a distribution frame body, the distribution frame body including a central tube, a plurality of partition plates are provided on the outside of the central tube, and a plurality of first adhesive flow holes are provided on the partition plates, which can connect the two sides of the partition plates; an arc plate is installed between two adjacent partition plates, and a plurality of second adhesive flow holes are provided on the arc plate, and all the arc plates are assembled into a circle.
[0006] Based on the above scheme and as a preferred embodiment of the above scheme: both sides of the first dispensing hole are inclined inward to form a "<" shaped flow channel inside the dispensing hole.
[0007] 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.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: a first buckle part is provided in the middle of one side of the arc plate, and two second buckle parts are provided at the upper and lower ends of the other side; the first buckle part of the arc plate and the second buckle part of the adjacent arc plate are fastened to the same fixing post.
[0009] Based on the above scheme and as a preferred embodiment of the above scheme: it also includes a membrane shell and a limiting member. The main body of the distribution frame is placed inside the membrane shell, and a limiting groove is provided on the inner wall of the membrane shell; a bayonet is provided on the fixing post of the partition plate, and the limiting member passes through the buckle part of the arc plate and is inserted into the bayonet; the tail of the limiting member works in conjunction with the limiting groove.
[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the buckle part is composed of a fixing plate and a clamping plate, which are arranged in a figure-eight shape; a fixing hole is provided between the fixing plate and the clamping plate, and the buckle on the partition plate is opposite to the fixing hole on the arc plate.
[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the head of the limiting member has a triangular structure, and the fixing plate and the clamping plate abut against the head of the limiting member.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. Set “<” shaped glue flow holes on the partition plate. When pouring glue, the glue flows into the glue flow holes, which can increase the bonding between the distribution frame and the glue, and connect the resin glue of two adjacent areas, increasing the overall firmness and making it less likely to delamination problems.
[0014] 2. A limiting groove is provided on the membrane shell. Limiting components can be selectively installed on the circumference of the distribution frame body according to different membrane fiber processing methods, making it suitable for various membrane fiber processing methods and highly versatile. When the membrane fiber processing involves direct injection and static solidification, the limiting components are inserted on the circumference of the distribution frame. The cooperation between the limiting components and the limiting grooves prevents the membrane fiber from rotating. When the membrane fiber processing involves centrifugal injection and solidification, the limiting components are removed, eliminating the limiting function and facilitating membrane fiber rotation processing. Attached Figure Description
[0015] Figure 1 is a structural schematic diagram of Embodiment 1;
[0016] Figure 2 is a structural cross-sectional view of Embodiment 1;
[0017] Figure 3 is a magnified view of a portion of Figure 2;
[0018] Figure 4 is a schematic diagram of the main structure of the distribution frame in Example 1;
[0019] Figure 5 is a diagram of the internal structure of the first flow channel in Example 1;
[0020] Figure 6 is a schematic diagram of the split structure of the main body of the distribution frame in Example 1;
[0021] Figure 7 is a schematic diagram of the arc-shaped plate in Example 1;
[0022] Figure 8 is a schematic diagram of the membrane shell structure in Example 1;
[0023] Figure 9 is a schematic diagram of the main structure of the distribution frame in Example 2;
[0024] Figure 10 is a top view of the main structure of the distribution frame in Example 2.
[0025] The components in the diagram are labeled as follows: main body of distribution frame 1, central tube 11, concentrated water inlet 12, partition plate 13, first dispensing hole 14, "<" shaped flow channel 15, fixing column 16, bayonet 17, membrane shell 2, limiting groove 21, limiting component 3, limiting component head 31, arc plate 4, second dispensing hole 41, first snap-fit part 42, second snap-fit part 43, fixing plate 44, clamping plate 45, fixing hole 46. Detailed Implementation
[0026] 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.
[0027] 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.
[0028] Example 1
[0029] The membrane fiber distribution frame described in this embodiment includes a distribution frame body 1, a membrane shell 2, and a limiting member 3. The distribution frame body 1 is placed inside the membrane shell 2, and a limiting groove 21 is provided on the inner wall of the membrane shell 2. The distribution frame body 1 includes a central tube 11, and a concentrate inlet 12 is provided on the side wall of the central tube 11. The central tube 11 can be connected to a concentrate interface to facilitate the flow of concentrate.
[0030] The central tube 11 is provided with several partition plates 13 on its outer side, which divide the interior of the membrane shell 2 into multiple different regions, each filled with membrane filaments. Each partition plate 13 has several first flow holes 14, which connect the regions on both sides of the partition plate. Both sides of the first flow holes 14 are inclined inwards, forming a "<"-shaped flow channel 15 within the flow hole. Compared to straight holes, the "<"-shaped first flow holes 14 can accommodate more resin and bond more tightly to the resin, resulting in better overall strength.
[0031] A fixing post 16 is provided on the outer side of the partition plate 13. An arc-shaped plate 4 is installed between two adjacent partition plates 13. The arc-shaped plate 4 is provided with several second glue dispensing holes 41 to improve the bonding force between the distribution frame body 1 and the membrane shell 2. A first snap-fit part 42 is provided in the middle of one side of the arc-shaped plate 4, and two second snap-fit parts 43 are provided at the upper and lower ends of the other side. The first snap-fit part 42 of the arc-shaped plate 4 and the second snap-fit parts 43 of the adjacent arc-shaped plates are snapped onto the same fixing post 16, and all the arc-shaped plates 4 are assembled into a circle.
[0032] Both the first latching part 42 and the second latching part 43 are composed of a fixing plate 44 and a clamping plate 45, which are arranged in a V-shape. The clamping plate can undergo slight deformation and is latched onto the fixing post 16. A fixing hole 46 is provided between the fixing plate 44 and the clamping plate 45. A latching slot 17 is provided on the fixing post 16 of the partition plate, and the latching slot 17 is positioned opposite to the fixing hole 46 on the arc-shaped plate 4. The limiting member 3 passes through the fixing hole 46 of the arc-shaped plate latching part and is inserted into the latching slot 17. The head 31 of the limiting member has a triangular structure, and the fixing plate 44, the clamping plate 45 and the head 31 of the limiting member abut against each other. The tail of the limiting member 3 is inserted into the limiting groove 21, which can restrict the rotation of the distribution frame body 1. It is suitable for the processing method of direct glue injection static solidification of membrane fibers.
[0033] Example 2
[0034] When the membrane fiber processing adopts the centrifugal injection and solidification process, the limiting piece 3 on the circumference of the main body 1 of the distribution frame is removed. At this time, there is still a limiting groove on the membrane shell, but without the limiting piece, the limiting groove will not affect the rotation of the main body of the distribution frame. The limiting function is canceled, which facilitates the rotation processing of the membrane fiber.
[0035] 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 fiber distribution frame for a columnar membrane module, characterized in that: The system includes a distribution frame body, which includes a central tube. Several partition plates are provided on the outer side of the central tube, and several first glue-flowing holes are provided on the partition plates to connect the areas on both sides of the partition plates. An arc-shaped plate is installed between two adjacent partition plates, and several second glue-flowing holes are provided on the arc-shaped plate. All the arc-shaped plates are assembled into a circle.
2. The membrane fiber distribution frame for a columnar membrane module as described in claim 1, characterized in that: Both sides of the first dispensing orifice are inclined inward, forming a "<" shaped flow channel inside the dispensing orifice.
3. The membrane fiber distribution frame for a columnar membrane module as described in claim 1, 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.
4. A membrane fiber distribution frame for a columnar membrane module as described in claim 3, characterized in that: The arc-shaped plate has a first latching part in the middle of one side and two second latching parts at the top and bottom of the other side; the first latching part of the arc-shaped plate and the second latching part of the adjacent arc-shaped plate are fastened to the same fixing post.
5. A membrane fiber distribution frame for a columnar membrane module as described in claim 3, characterized in that: It also includes a membrane shell and a limiting component. The main body of the distribution frame is placed inside the membrane shell, and a limiting groove is provided on the inner wall of the membrane shell. The fixing post of the partition plate is provided with a bayonet, and the limiting component passes through the buckle part of the arc plate and is inserted into the bayonet. The tail of the limiting component works in conjunction with the limiting groove.
6. A membrane fiber distribution frame for a columnar membrane module as described in claim 5, characterized in that: The buckle part consists of a fixing plate and a clamping plate, which are arranged in a figure-eight shape; a fixing hole is provided between the fixing plate and the clamping plate, and the buckle on the partition plate is opposite to the fixing hole on the arc plate.
7. A membrane fiber distribution frame for a columnar membrane module as described in claim 6, characterized in that: The head of the limiting component has a triangular structure, and the fixing plate and the clamping plate abut against the head of the limiting component.