Cross-flow filter assembly

Abstract

The utility model discloses a cross-flow filter component, which relates to the technical field of filter equipment, and adopts the technical scheme that the cross-flow filter component comprises a hollow pipe and a filter element arranged in the hollow pipe, a backflow hole is formed in the side wall of the hollow pipe, a backflow pipe is arranged on the backflow hole, a discharge port is formed in the side wall of the backflow pipe, and a push block is connected in the backflow pipe in a sliding manner; the side wall of the pushing block abuts against the inner wall of the backflow pipe, and a pushing assembly connected with the pushing block is arranged on the backflow pipe and used for pushing the pushing block to slide in the length direction of the backflow pipe. According to the cross-flow filtering assembly, the pushing block is pushed to slide in the length direction of the backflow pipe through the pushing assembly, the pushing block can scrape the inner wall of the backflow pipe in the sliding process, impurities attached to the inner wall of the backflow pipe are scraped off, then the pushing block is pushed back into the hollow pipe through the backflow hole, the pushing block and other impurities can be discharged together during follow-up discharging, impurity removal is thorough, and the service life of the cross-flow filtering assembly is prolonged. And the operation is convenient, time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, specifically a cross-flow filtration component. Background Technology

[0002] Cross-flow filtration uses a circulating pump to move the material to be filtered at high speed through filter membrane channels of different pore sizes. Under pressure, the filtrate passes through tangentially, while the unfiltered liquid forms turbulence due to high-speed movement, continuously washing the inner surface of the membrane rod and carrying away a small amount of solid matter adhering to the membrane, thereby preventing membrane blockage and maintaining normal filtration.

[0003] Existing cross-flow filter elements typically include a hollow tube, an upper seal, a lower seal, and a hollow fiber ultrafiltration membrane. The upper and lower seals fix the two ends of the hollow fiber ultrafiltration membrane to the two ends of the hollow tube. An inlet is provided on the lower seal, and a reflux hole is provided on the side wall of the hollow tube at the upper seal end. A reflux pipe is connected to the reflux hole, and an outlet is formed by passing through the upper seal at the end of the hollow fiber ultrafiltration membrane. The principle is as follows: the feed solution to be filtered enters the hollow tube through the inlet. During the axial transport along the hollow tube, it permeates radially from the outside to the inside of the hollow fiber ultrafiltration membrane under the action of pressure difference, becoming permeate. The permeate flows within the hollow fiber ultrafiltration membrane to the upper seal end and finally exits from the outlet. The trapped impurities collect on the outside of the hollow fiber ultrafiltration membrane and are transported with the feed solution to the upper seal end, flowing into the reflux pipe through the reflux hole and then exiting through the reflux pipe.

[0004] Currently, after long-term use of cross-flow filter components, impurities tend to adhere to the inner wall of the return pipe used for discharging impurities. Excessive impurity adhesion can easily lead to blockage of the return pipe, resulting in poor discharge and requiring cleaning and unblocking. Currently, it is usually necessary to use a tool to insert into the return pipe to unblock the return hole. This requires bringing your own tool, and the tool must be aligned with the return pipe when inserted, which is a relatively troublesome, time-consuming and labor-intensive operation. Utility Model Content

[0005] The purpose of this invention is to provide a cross-flow filter component to solve the above-mentioned problems.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a cross-flow filter assembly, comprising a hollow tube and a filter element disposed inside the hollow tube, a return hole is provided on the side wall of the hollow tube, a return pipe is provided on the return hole, an outlet is provided on the side wall of the return pipe, a push block is slidably connected inside the return pipe, the side wall of the push block abuts against the inner wall of the return pipe, and a pushing component connected to the push block is provided on the return pipe, the pushing component being used to push the push block to slide along the length direction of the return pipe.

[0007] As a further feature of this invention, the pushing component includes a threaded rod threadedly connected to the return pipe, one end of which extends into the return pipe and is rotatably connected to the push block.

[0008] As a further feature of this utility model, a gripping knob is connected to the end of the threaded rod away from the push block, and several anti-slip grooves are provided on the side wall of the gripping knob.

[0009] As a further feature of this invention, a piston is provided on the push block.

[0010] As a further feature of this invention, a groove is provided on the inner wall of the return pipe along the length direction, and a slider is provided on the side wall of the push block that is slidably connected inside the groove.

[0011] As a further feature of this invention, the reflux pipe is provided with a threaded pipe, and the hollow pipe sidewall is provided with a threaded hole that matches the threaded pipe, and the threaded hole is connected to the reflux hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, by setting a pusher block and a pushing component, allows the pusher block to slide along the length of the return pipe when the cross-flow filter component becomes clogged due to long-term use. During the sliding process, the pusher block scrapes the inner wall of the return pipe, removing the impurities adhering to the inner wall. Then, it is pushed back into the hollow pipe through the return hole, so that it can be discharged together with other impurities during subsequent discharge. This method is thorough in removing impurities, convenient in operation, and saves time and effort. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a half-sectional view of the present invention;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a half-sectional view of the reflux pipe, pusher block, and pusher assembly in this utility model.

[0018] Reference numerals: 1. Hollow tube; 2. Filter element; 3. Return hole; 4. Return pipe; 5. Discharge port; 6. Push block; 7. Threaded rod; 8. Grip knob; 9. Anti-slip groove; 10. Piston; 11. Slide groove; 12. Slider; 13. Threaded tube; 14. Threaded hole. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 As shown, a cross-flow filter assembly includes a hollow tube 1 and a filter element 2 disposed inside the hollow tube 1. A return hole 3 is formed on the side wall of the hollow tube 1, and a return pipe 4 is disposed on the return hole 3. An outlet 5 is formed on the side wall of the return pipe 4, and a push block 6 is slidably connected inside the return pipe 4. The side wall of the push block 6 abuts against the inner wall of the return pipe 4. A pushing component connected to the push block 6 is disposed on the return pipe 4, and the pushing component is used to push the push block 6 to slide along the length direction of the return pipe 4. When impurities flow out through the return hole 3, they will flow into the return pipe 4 and eventually be discharged through the outlet 5. When the cross-flow filter assembly becomes clogged due to long-term use, the push component can push the push block 6 to slide along the length direction of the return pipe 4. During the sliding process, the push block 6 will scrape the inner wall of the return pipe 4, scraping off the impurities adhering to the inner wall of the return pipe 4, and then push it back into the hollow tube 1 through the return hole 3. This allows it to be discharged later. Impurities are discharged together, ensuring thorough impurity removal. The operation is convenient, saving time and effort. A groove 11 is formed along the length of the inner wall of the return pipe 4, and a slider 12 is slidably connected inside the groove 11 on the side wall of the push block 6. When the push block 6 slides along the length of the return pipe 4, the slider 12 slides within the groove 11. The groove 11 limits the sliding direction of the slider 12, thus limiting the sliding direction of the push block 6, making the sliding of the push block 6 within the return pipe 4 easier and smoother. A threaded tube 13 is provided on the return pipe 4, and a threaded hole 14 matching the threaded tube 13 is formed on the side wall of the hollow tube 1. The threaded hole 14 is connected to the return hole 3. When the return pipe 4 is deformed or damaged due to long-term use, the return pipe 4 can be screwed down to unscrew the threaded tube 13 from the threaded hole 14, allowing the return pipe 4 to be removed and replaced, extending the service life of the cross-flow filter assembly.

[0021] Please see Figure 2-4As shown, the pushing component includes a threaded rod 7 threadedly connected to the return pipe 4, with one end of the threaded rod 7 extending into the return pipe 4 and rotatably connected to the push block 6. By screwing the threaded rod 7, it is made to continuously penetrate deeper into the return pipe 4, thereby pushing the push block 6 to slide along the length of the return pipe 4 to achieve impurity removal. The operation is relatively convenient and simple. A grip knob 8 is connected to the end of the threaded rod 7 away from the push block 6, and several anti-slip grooves 9 are provided on the side wall of the grip knob 8. By screwing the grip knob 8, the threaded screw can be driven to rotate. The grip knob 8 is designed to provide a force point for rotating the threaded screw, making the operation easier and less strenuous. The anti-slip grooves 9 increase the coefficient of friction on the side wall of the grip knob 8, making it less likely to slip when screwing the grip knob 8. A piston 10 is provided on the push block 6. The piston 10 is made of nitrile rubber, which has good elasticity and a tighter contact with the side wall of the return pipe 4, thereby improving the impurity removal effect of the push block 6.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cross-flow filtration assembly, comprising a hollow tube (1) and a filter element (2) disposed inside the hollow tube (1), wherein a return hole (3) is provided on the side wall of the hollow tube (1), and a return pipe (4) is provided on the return hole (3), characterized in that: The return pipe (4) has an outlet (5) on its side wall. A push block (6) is slidably connected inside the return pipe (4). The side wall of the push block (6) abuts against the inner wall of the return pipe (4). A push assembly connected to the push block (6) is provided on the return pipe (4). The push assembly is used to push the push block (6) to slide along the length of the return pipe (4).

2. The cross-flow filtering component according to claim 1, characterized in that: The push assembly includes a threaded rod (7) threadedly connected to the return pipe (4), one end of which extends into the return pipe (4) and is rotatably connected to the push block (6).

3. The cross-flow filter assembly according to claim 2, characterized in that: The threaded rod (7) is connected to a gripping knob (8) at the end away from the push block (6), and the gripping knob (8) has several anti-slip grooves (9) on its side wall.

4. The cross-flow filtering component according to claim 1, characterized in that: A piston (10) is provided on the push block (6).

5. A cross-flow filtering component according to claim 1, characterized in that: The inner wall of the return pipe (4) is provided with a groove (11) along the length direction, and the push block (6) is provided with a slider (12) that is slidably connected inside the groove (11) on the side wall.

6. A cross-flow filtering component according to claim 1, characterized in that: The return pipe (4) is provided with a threaded pipe (13), and the hollow pipe (1) has a threaded hole (14) on its side wall that matches the threaded pipe (13). The threaded hole (14) is connected to the return hole (3).

Images