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CN-224221107-U - Cross-flow filter assembly

CN224221107UCN 224221107 UCN224221107 UCN 224221107UCN-224221107-U

Abstract

The utility model discloses a cross-flow filter assembly, which relates to the technical field of filter equipment and adopts the technical scheme that the cross-flow filter assembly comprises a hollow pipe and a filter element arranged in the hollow pipe, wherein 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, a push block is connected in the backflow pipe in a sliding manner, the side wall of the push block is in contact with the inner wall of the backflow pipe, a push assembly connected with the push block is arranged on the backflow pipe, and the push assembly is used for pushing the push block to slide along the length direction of the backflow pipe. According to the cross-flow filtering assembly, the pushing block is pushed by the pushing assembly to slide along the length direction of the return pipe, so that the pushing block can scrape the inner wall of the return pipe in the sliding process, impurities adhered to the inner wall of the return pipe are scraped off, and then pushed back into the hollow pipe through the return hole, so that the cross-flow filtering assembly can be discharged together with other impurities in the subsequent discharge process, the impurity removal is thorough, the operation is convenient, and the time and the labor are saved.

Inventors

  • ZHANG JIANSONG
  • FAN GUOWEI

Assignees

  • 绍兴市凯宏膜技术有限公司

Dates

Publication Date
20260512
Application Date
20250417

Claims (6)

  1. 1. The cross flow filtering assembly comprises a hollow pipe (1) and a filter element (2) arranged in the hollow pipe (1), wherein a backflow hole (3) is formed in the side wall of the hollow pipe (1), and a backflow pipe (4) is arranged on the backflow hole (3), and the cross flow filtering assembly is characterized in that a discharge outlet (5) is formed in the side wall of the backflow pipe (4), a pushing block (6) is connected inside the backflow pipe (4) in a sliding mode, the side wall of the pushing block (6) is in contact with the inner wall of the backflow pipe (4), a pushing assembly connected with the pushing block (6) is arranged on the backflow pipe (4), and the pushing assembly is used for pushing the pushing block (6) to slide along the length direction of the backflow pipe (4).
  2. 2. A cross-flow filter assembly according to claim 1, wherein the pushing assembly comprises a threaded rod (7) screwed on the return pipe (4), and one end of the threaded rod (7) extends into the return pipe (4) and is rotatably connected with the pushing block (6).
  3. 3. The cross-flow filtering assembly according to claim 2, wherein one end of the threaded rod (7) far away from the push block (6) is connected with a holding knob (8), and a plurality of anti-slip grooves (9) are formed in the side wall of the holding knob (8).
  4. 4. A cross-flow filter assembly according to claim 1, characterized in that the push block (6) is provided with a piston (10).
  5. 5. The cross-flow filter assembly according to claim 1, wherein the inner wall of the return pipe (4) is provided with a sliding groove (11) along the length direction, and the side wall of the push block (6) is provided with a sliding block (12) which is in sliding connection with the inside of the sliding groove (11).
  6. 6. A cross-flow filter assembly according to claim 1, wherein the return pipe (4) is provided with a threaded pipe (13), the side wall of the hollow pipe (1) is provided with a threaded hole (14) matched with the threaded pipe (13), and the threaded hole (14) is communicated with the return hole (3).

Description

Cross-flow filter assembly Technical Field The utility model relates to the technical field of filtering equipment, in particular to a cross-flow filtering component. Background The cross-flow filtration is that substances to be filtered move at high speed in the pore canal of the filter membrane with different apertures by a circulating pump, and the filtrate is filtered out in a tangential passing mode under the action of pressure, so that no turbulence is formed by the filtrate due to the high-speed movement, the inner surface of the membrane rod is continuously washed, and a small amount of solid matters attached to the membrane are taken away, thereby preventing the filter membrane from being blocked and keeping the normal operation of filtration. The conventional cross-flow filter generally comprises a hollow tube, an upper sealing part, a lower sealing part and a dry hollow fiber ultrafiltration membrane, wherein the upper sealing part and the lower sealing part fix the two ends of the hollow fiber ultrafiltration membrane at the two ends of the hollow tube, an inlet is arranged on the lower sealing part, a backflow hole is arranged on the side wall of the hollow tube at the end of the upper sealing part, a backflow pipe is connected to the backflow hole, and the end part of the hollow fiber ultrafiltration membrane penetrates through the upper sealing part to form an outlet. The principle is that the stock solution to be filtered enters the hollow tube from the inlet, and permeates the hollow fiber ultrafiltration membrane from outside to inside in the radial direction under the action of pressure difference in the axial conveying process of the hollow tube to become permeate, the permeate flows to the end of the upper sealing part in the hollow fiber ultrafiltration membrane and finally is discharged from the outlet, and the trapped impurities are collected outside the hollow fiber ultrafiltration membrane and conveyed to the end of the upper sealing part along with the flow of the stock solution, flow into the return pipe through the return hole and are discharged through the return pipe. At present, after the cross flow filter is used for a long time, the back pipe inner wall for discharging impurity is easy to adhere impurity, and impurity adhesion is too much to lead to the back pipe to block up easily to lead to discharging unsmoothly, need clear up the mediation, current mode mediation reflow hole that needs to insert the back pipe with the instrument usually, both need from taking the instrument, and need aim at the back pipe again when the instrument inserts, the operation is comparatively troublesome, wastes time and energy. Disclosure of utility model The present utility model is directed to a cross-flow filter assembly that solves the above-mentioned problems. The cross-flow filtering assembly comprises a hollow pipe and a filter element arranged in the hollow pipe, wherein a backflow hole is formed in the side wall of the hollow pipe, a backflow pipe is arranged on the backflow hole, a discharge outlet is formed in the side wall of the backflow pipe, a pushing block is connected in a sliding mode in the backflow pipe, the side wall of the pushing block is in contact with the inner wall of the backflow pipe, a pushing assembly connected with the pushing block is arranged on the backflow pipe, and the pushing assembly is used for pushing the pushing block to slide along the length direction of the backflow pipe. As a further arrangement of the utility model, the push assembly comprises a threaded rod threadedly connected to the return tube, one end of the threaded rod extending into the return tube and being rotatably connected to the push block. As a further arrangement of the utility model, one end of the threaded rod, which is far away from the push block, is connected with a holding knob, and a plurality of anti-slip grooves are formed in the side wall of the holding knob. As a further arrangement of the utility model, the push block is provided with a piston. As a further arrangement of the utility model, a chute is arranged on the inner wall of the return pipe along the length direction, and a sliding block which is in sliding connection with the inside of the chute is arranged on the side wall of the push block. As a further arrangement of the utility model, the reflux pipe is provided with a threaded pipe, the side wall of the hollow pipe is provided with a threaded hole matched with the threaded pipe, and the threaded hole is communicated with the reflux hole. Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, by arranging the push block and the push component, when the cross-flow filter component is blocked due to long-term use, the push block can be pushed by the push component to slide along the length direction of the return pipe, so that the push block can scrape the inner wall of the return pipe in the sliding pro