An ultrafiltration membrane cleaning device

Abstract

The utility model discloses a kind of ultrafiltration membrane cleaning devices, including two side plates, two side plates are fixedly connected with cleaning frame between, the top of the cleaning frame is equipped with guiding assembly, the inside rotation of the cleaning frame is connected with the round roller of hollow structure, the inner wall of the cleaning frame is equipped with two round holes, the inner wall of two round holes is fixedly connected with metal pipe, the end of two metal pipes is fixedly interconnected with the round sleeve of hollow structure. Hollow fiber membrane silk in moving process, both by multiple water outlets in round sleeve multidirectional washing, also through the synergistic effect of cleaning fluid flow and membrane silk self-moving, realize the efficient removal of surface pollutants, overcome the limitations of traditional soaking or one-way washing;Through end cap linkage double filter screen design, filter screen position can be switched quickly without stopping, ensure that cleaning fluid continues to filter while completing the replacement of dirty filter screen, guarantee production continuity and cleaning quality.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane production technology, and in particular to an ultrafiltration membrane cleaning device. Background Technology

[0002] Hollow fiber ultrafiltration membranes are widely used in water purification, solution separation, and wastewater purification and reuse. During the production of hollow fiber ultrafiltration membranes, various chemical solvents (such as NMP and DMAC) are typically used as solvents or additives. These solvents play a crucial role in the ultrafiltration membrane formation process, but incomplete evaporation or residual solvents can affect the performance and purity of the ultrafiltration membrane. Therefore, a cleaning step is necessary to ensure that there are no residual solvents or additives on the surface and inside the hollow fiber ultrafiltration membrane, thereby improving the purity and quality of the ultrafiltration membrane.

[0003] In existing technologies, existing processes mostly rely on the passive immersion of membrane fibers in cleaning solution or rinsing by flow in only one direction, which is difficult to effectively remove contaminants from the surface of membrane fibers, resulting in incomplete cleaning and affecting membrane flux and service life. Traditional filtration structures require shutdown for disassembly and replacement, which not only affects production efficiency but may also lead to discontinuous membrane fiber cleaning due to frequent interruptions, increasing process costs. Therefore, we propose an ultrafiltration membrane cleaning device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ultrafiltration membrane cleaning device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ultrafiltration membrane cleaning device includes two side plates, with a cleaning frame fixedly connected between the two side plates. A guide assembly is provided on the top of the cleaning frame. A hollow circular roller is rotatably connected inside the cleaning frame. Two circular holes are opened on the inner wall of the cleaning frame, and metal tubes are fixedly connected to the inner walls of the two circular holes. Hollow circular sleeves are fixedly connected to one end of each of the two metal tubes. Multiple water outlet holes are evenly opened on the inner walls of the two circular sleeves. A transparent acrylic tube is fixedly connected to one end of the two metal tubes. A circular tube is slidably connected to the inner wall of one end of the transparent acrylic tube, and a filter assembly is provided on the outer wall of the circular tube.

[0007] Preferably, the guide assembly includes four support plates, the bottom of each of the four support plates is fixedly connected to the top of the cleaning frame, and each of the four support plates is rotatably connected to a guide roller in pairs. The outer walls of the two guide rollers are evenly provided with multiple annular grooves.

[0008] Preferably, the filter assembly includes two U-shaped pads, the outer wall of the circular tube has two grooves, the inner walls of the two grooves are fixedly connected to the bottom of the two U-shaped pads respectively, the top of the U-shaped pads is fixedly connected to a filter screen, and one end of the circular tube is fixedly connected to an end cap.

[0009] Preferably, a water pump is fixedly connected to the outer wall of the cleaning frame, and the output end of the water pump is fixedly connected to the top of the transparent acrylic tube.

[0010] Preferably, a plurality of sealing rings are uniformly and fixedly embedded on the outer wall of the circular tube, and the outer wall of the sealing rings is pressed against the inner wall of the transparent acrylic tube.

[0011] Preferably, the outer wall of the end cap is pressed against the outer wall of the transparent acrylic tube.

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

[0013] In this solution, the hollow fiber membrane fibers are subjected to multi-directional flushing from multiple water outlets within the sleeve during movement. Furthermore, the synergistic effect of the cleaning fluid flow and the membrane fiber movement itself enables efficient removal of surface contaminants, overcoming the limitations of traditional soaking or unidirectional flushing. Through the end cap linkage dual filter screen design, the filter screen position can be quickly switched without stopping the machine, ensuring continuous filtration of the cleaning fluid while replacing the dirty filter screen, thus guaranteeing production continuity and cleaning quality. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view cross-sectional structural diagram of an ultrafiltration membrane cleaning device proposed in this utility model;

[0016] Figure 2 This is a side view cross-sectional structural diagram of an ultrafiltration membrane cleaning device proposed in this utility model;

[0017] Figure 3 This utility model proposes an ultrafiltration membrane cleaning device. Figure 1 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This utility model proposes an ultrafiltration membrane cleaning device. Figure 2 A magnified structural diagram of part B in the diagram;

[0019] Figure 5 This is a partial three-dimensional structural diagram of an ultrafiltration membrane cleaning device proposed in this utility model.

[0020] In the diagram: 1. Side plate; 2. Cleaning frame; 3. Support plate; 4. Guide roller; 5. Circular roller; 6. Water pump; 7. Metal pipe; 8. Circular sleeve; 9. Water outlet; 10. Transparent acrylic tube; 11. Circular tube; 12. U-shaped pad; 13. Filter screen; 14. End cap; 15. Sealing ring. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Depend on Figures 1-5 As shown, an ultrafiltration membrane cleaning device is disclosed, comprising two side plates 1, a cleaning frame 2 fixedly connected between the two side plates 1, a hollow roller 5 rotatably connected inside the cleaning frame 2, bearings fixedly fitted at both ends of the roller 5, the outer rings of the two bearings fixedly connected to the inner wall of the cleaning frame 2, a water pump 6 fixedly connected to the outer wall of the cleaning frame 2, the output end of the water pump 6 fixedly connected to the top of the transparent acrylic tube 10, and the operation of the water pump 6 transports the cleaning liquid in the cleaning frame 2 to the interior of the transparent acrylic tube 10.

[0023] The inner wall of the cleaning frame 2 has two round holes, and the inner walls of the two round holes are fixedly connected to metal tubes 7. One end of each of the two metal tubes 7 is fixedly connected to a hollow circular sleeve 8. The two metal tubes 7 are far from the circular tube 11. The inner walls of the two circular sleeves 8 are evenly provided with multiple water outlet holes 9. One end of each of the two metal tubes 7 is fixedly connected to the same transparent acrylic tube 10. The inner wall of one end of the transparent acrylic tube 10 is slidably connected to the circular tube 11, and the circular tube 11 slides along the transparent acrylic tube 10.

[0024] The top of the cleaning frame 2 is provided with a guide assembly, which includes four support plates 3. The bottom of the four support plates 3 is fixedly connected to the top of the cleaning frame 2. The four support plates 3 are rotatably connected to guide rollers 4 in pairs. Existing bearings are fixedly sleeved at both ends of the two guide rollers 4. The outer ring of the bearing is fixedly connected to the outer wall of the support plate 3. Multiple annular grooves are evenly opened on the outer wall of the two guide rollers 4. The multiple annular grooves assist the movement and guidance of multiple hollow fiber membrane filaments.

[0025] The outer wall of the circular tube 11 is provided with a filter assembly, which includes two U-shaped pads 12. Two grooves are opened on the outer wall of the circular tube 11. The inner walls of the two grooves are fixedly connected to the bottom of the two U-shaped pads 12 respectively. The top of the U-shaped pads 12 is fixedly connected to the filter screen 13 by existing screws. The U-shaped pads 12 support the filter screen 13. One end of the circular tube 11 is fixedly connected to an end cap 14. Multiple sealing rings 15 are evenly fixedly embedded on the outer wall of the circular tube 11. The outer wall of the sealing rings 15 is pressed against the inner wall of the transparent acrylic tube 10. The multiple sealing rings 15 increase the sealing between the circular tube 11 and the transparent acrylic tube 10. The outer wall of the end cap 14 is pressed against the outer wall of the transparent acrylic tube 10. The end cap 14 is marked so that the filter screen 13 is aligned with the water inlet end of the water pump 6.

[0026] Working principle: During use, the hollow fiber membrane filaments pass through multiple annular grooves on the two guide rollers 4 and through the inside of the two circular sleeves 8, passing through the bottom of the circular roller 5 in the middle. The hollow fiber membrane filaments are pulled by the existing winding and unwinding equipment. During the movement, the cleaning fluid in the cleaning frame 2 is transported to the inside of the transparent acrylic tube 10 by the water pump 6. The water inlet is located above the filter screen 13 near the end cap 14. The incoming water is filtered through the filter screen 13 and then enters the transparent acrylic tube 10 and the inside of the two metal tubes 7. The cleaning fluid enters the two circular sleeves 8 and exits from multiple water outlets 9 inside the two circular sleeves 8. The process involves flushing multiple hollow fiber membrane filaments. Simultaneously, as these filaments pass through the cleaning frame 2, they are cleaned through the flow of the cleaning solution and their own movement. When it is necessary to replace the filter screen 13, the end cap 14 is moved outward, causing two filter screens 13 to move. This allows the other filter screen 13, which is not currently filtering, to move to the position of the previously filtered filter screen 13, thus achieving a repositioning effect. This eliminates the need to stop the machine to replace the previously filtered filter screen 13. After replacement, the round tube 11 is pushed into the transparent acrylic tube 10, allowing the new filter screen 13 to filter the incoming cleaning solution again.

[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrafiltration membrane cleaning device, comprising two side plates (1), characterized in that, A cleaning frame (2) is fixedly connected between two side plates (1). A guide assembly is provided on the top of the cleaning frame (2). A hollow circular roller (5) is rotatably connected inside the cleaning frame (2). Two circular holes are opened on the inner wall of the cleaning frame (2). Metal tubes (7) are fixedly connected to the inner walls of the two circular holes. Hollow circular sleeves (8) are fixedly connected to one end of the two metal tubes (7). Multiple water outlet holes (9) are evenly opened on the inner walls of the two circular sleeves (8). The same transparent acrylic tube (10) is fixedly connected to one end of the two metal tubes (7). A circular tube (11) is slidably connected to the inner wall of one end of the transparent acrylic tube (10). A filter assembly is provided on the outer wall of the circular tube (11).

2. The ultrafiltration membrane cleaning device according to claim 1, characterized in that, The guide assembly includes four support plates (3), the bottom of each of the four support plates (3) is fixedly connected to the top of the cleaning frame (2), and each of the four support plates (3) is rotatably connected to a guide roller (4) in pairs. Multiple annular grooves are evenly provided on the outer wall of each of the two guide rollers (4).

3. The apparatus for cleaning an ultrafiltration membrane according to claim 1, wherein The filter assembly includes two U-shaped pads (12), and the outer wall of the round tube (11) has two grooves. The inner walls of the two grooves are fixedly connected to the bottom of the two U-shaped pads (12), respectively. A filter screen (13) is fixedly connected to the top of the U-shaped pads (12), and an end cap (14) is fixedly connected to one end of the round tube (11).

4. The ultrafiltration membrane cleaning device according to claim 1, characterized in that, A water pump (6) is fixedly connected to the outer wall of the cleaning frame (2), and the output end of the water pump (6) is fixedly connected to the top of the transparent acrylic tube (10).

5. The ultrafiltration membrane cleaning device according to claim 1, wherein Multiple sealing rings (15) are uniformly embedded on the outer wall of the round tube (11), and the outer wall of the sealing ring (15) is pressed against the inner wall of the transparent acrylic tube (10).

6. The ultrafiltration membrane cleaning device according to claim 3, characterized in that, The outer wall of the end cap (14) is pressed against the outer wall of the transparent acrylic tube (10).

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