A filter cartridge cleaning device
By using a multi-port connection structure and a drive device to generate tangential flow cleaning fluid shear force on the filter element surface, the problem of low efficiency in simultaneous cleaning of multiple filter elements in the prior art is solved, achieving a more efficient cleaning effect and greater applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN DEKUN WATER TREATMENT EQUIP CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-10
AI Technical Summary
Existing filter cleaning devices cannot perform simultaneous cleaning of multiple filters and have low cleaning efficiency, which may lead to back pressure, desalination layer shedding, and reduced cleaning effect.
It adopts a multi-port connection structure and drive device, and uses a rotary joint and gear transmission to make the cleaning fluid flow tangentially on the surface of the filter element, forming a shear force to achieve synchronous cleaning of multiple filter elements. It also adapts to the installation of filter elements of different lengths through a stepper motor and lead screw structure.
It improves the efficiency and applicability of filter element cleaning, ensures that the cleaning solution is evenly distributed on the filter element surface, avoids local concentrations that are too high or too low, and enhances the cleaning effect.
Smart Images

Figure CN224474876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of filter element cleaning devices, specifically a filter element cleaning device. Background Technology
[0002] As a core component of reverse osmosis equipment, the RO reverse osmosis membrane needs to be cleaned after prolonged use. It is usually cleaned with a cleaning solution, but the existing cleaning equipment takes a long time and cannot improve the cleaning efficiency, so it has certain defects.
[0003] To overcome the aforementioned defects, Chinese patent CN222239653U, a reverse osmosis membrane cleaning device, points out that effective cleaning of RO reverse osmosis membranes can be achieved through immersion and bubble impact. Indeed, this patent can overcome the above-mentioned technical defects to a certain extent, but there are still some shortcomings. First, it cannot achieve simultaneous cleaning of multiple sets. Second, if gas is introduced into the permeate side for backflushing, back pressure may be generated (permeate side pressure > concentrate side pressure), causing the desalination layer to fall off (membrane element shrinkage / expansion deformation), which requires the addition of detection equipment, undoubtedly increasing the cost of the cleaning device. Furthermore, excessive foam volume hinders the contact between bubbles and the membrane surface, and at the same time reduces dispersibility and adsorption capacity, thus reducing the cleaning effect. Therefore, although this patent can improve the cleaning efficiency to a certain extent, there are still some problems and defects.
[0004] Therefore, in order to overcome the shortcomings of the prior art and improve the cleaning efficiency while simultaneously cleaning multiple sets of filters, a filter cleaning device is proposed to overcome the shortcomings of the prior art. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a filter cartridge cleaning device that solves the problem that existing methods for cleaning RO reverse osmosis membranes (filter cartridges) cannot further improve cleaning efficiency when cleaning multiple sets simultaneously.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter element cleaning device, including a base frame, a left side box mounted on the upper end of the base frame, and a transmission structure. A right side box is connected to the transmission structure. A multi-port connection structure is installed on the outer surface of the left side box and the surface of the right side box. A drive structure is installed on the inner side of the right side box. The drive structure is connected to the multi-port connection structure and drives the multi-port connection structure to rotate. A filter element is installed between the two sets of multi-port connection structures. The multi-port connection structure includes a rotating box, an outlet pipe, a rotary joint, a transfer box, a branch pipe, an inlet pipe, and an internal gear. The outlet pipe passes through the left side box and is connected to the rotary joint at one end. The rotating box is hollow inside. A transfer box is installed on the inner side of the rotating box and is connected to the other end of the rotary joint. Branch pipes are arranged in a circular array on the surface of the transfer box and extend outward to one side of the rotating box. The inlet pipe passes through the right side box and is connected to another set of rotary joints. A filter element is connected between the two sets of branch pipes. An internal gear is installed on the outer side of one set of rotating boxes and is connected to the drive structure.
[0007] Furthermore, the drive structure includes a geared motor, a rotating shaft, and gears; the geared motor is installed on the inner side of the right side box, and its output end is connected to a rotating shaft that passes through the right side box. Gears that form a gear transmission with the internal gears are installed on the surface of the rotating shaft.
[0008] Furthermore, a top plate is installed on the upper end face of the right side box, and a second mounting plate is installed on the lower end face of the top plate. An opening is provided on the surface of the second mounting plate, through which the rotating shaft passes and is connected to the inner ring of the second bearing installed in the opening.
[0009] As a preferred technical solution, the transmission structure includes a stepper motor, a lead screw, a bearing housing, a guide rail, and a slider; the guide rail is symmetrically installed on the upper end face of the base frame, and a slider is movably installed on the upper end face of the guide rail, wherein the right side box is connected to the slider, and a stepper motor is installed on the inner side of the left side box, the output end of which is connected to a lead screw and passes through the right side box to form a meshing transmission with the right side box, and a bearing housing is also installed at the upper end of the base frame, with one end of the lead screw connected to the bearing housing.
[0010] Furthermore, an mounting plate is installed on the upper end of the slider, a connecting plate is installed on the upper end of the mounting plate, a connecting post is installed on the surface of the connecting plate, one end of the connecting post is connected to the surface of the right side box, and a bearing is installed on the surface of the connecting post, the bearing being in contact with the surface of the rotating box.
[0011] Compared with the prior art, the present invention provides a filter element cleaning device, which has the following beneficial effects:
[0012] 1. This device, through its drive mechanism and multi-port connection structure, is described in the following reference. Figure 5 , Figure 6 , Figure 7As can be seen, multiple filter elements are installed between two sets of branch pipes, and then a servo motor drives the rotating shaft to rotate. This, in turn, drives the rotation of the rotating box through gear and internal gear transmission, specifically through a rotary joint. This allows the cleaning solution to flow tangentially on the membrane surface through the slow rotation after entering the branch pipe and then the filter element through the inlet pipe. This creates a "shearing force," making the cleaning solution more evenly distributed inside the membrane module and avoiding local concentrations that are too high or too low. This improves the cleaning efficiency while simultaneously cleaning multiple sets of filter elements.
[0013] 2. This device, through a stepper motor, lead screw, guide rail, and slider, enables the right-side box to move along the guide rail, allowing for the installation of filter elements of different lengths and specifications, thereby improving the applicability of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the present invention;
[0015] Figure 2 This utility model Figure 1 A three-dimensional schematic diagram;
[0016] Figure 3 This utility model Figure 1 A three-dimensional schematic diagram;
[0017] Figure 4 This utility model Figure 1 The diagram on the left;
[0018] Figure 5 This utility model Figure 4 AA sectional view;
[0019] Figure 6 This is a schematic diagram of the multi-port connection structure of this utility model;
[0020] Figure 7 This utility model Figure 6 A magnified view of part A.
[0021] In the diagram: 1. Base frame; 2. Left side box; 3. Guide rail; 4. Right side box; 5. Slider; 6. Mounting plate one; 7. Connecting column; 8. Bearing one; 9. Connecting plate; 10. Rotary box; 11. Filter element; 12. Stepper motor; 13. Lead screw; 14. Bearing seat; 15. Liquid outlet pipe; 16. Rotary joint; 17. Transfer box; 18. Branch pipe; 19. Gear motor; 20. Rotating shaft; 21. Top plate; 22. Mounting plate two; 23. Bearing two; 24. Liquid inlet pipe; 25. Gear; 26. Internal gear. Detailed Implementation
[0022] 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.
[0023] Example
[0024] Please see Figure 1-7 This utility model provides the following technical solution: a filter element cleaning device, including a base frame 1, a left side box 2 installed on the upper end of the base frame 1, and a transmission structure. A right side box 4 is connected to the transmission structure. Multi-port connection structures are installed on the outer surface of the left side box 2 and the surface of the right side box 4. A drive structure is installed on the inner side of the right side box 4. The drive structure is connected to the multi-port connection structures and drives the multi-port connection structures to rotate. A filter element 11 is installed between the two sets of multi-port connection structures. The multi-port connection structure includes a rotating box 10, a liquid outlet pipe 15, a rotary joint 16, a transfer box 17, and a branch pipe 18. The rotating box 10 has an inlet pipe 24 and an internal gear 26. The outlet pipe 15 passes through the left side box 2 and is connected to the rotary joint 16 at one end. The rotating box 10 is hollow inside. A transfer box 17 is installed on the inner side of the rotating box 10 and is connected to the other end of the rotary joint 16. Branch pipes 18 are arranged in a ring array on the surface of the transfer box 17 and extend outward to one side of the rotating box 10. The inlet pipe 24 passes through the right side box 4 and is connected to another set of rotary joints 16. A filter element 11 is connected between the two sets of branch pipes 18. An internal gear 26 is installed on the outer side of one set of rotating boxes 10 and is connected to the drive structure.
[0025] In this embodiment, the specific working principle is as follows: This device installs the filter element 11 on two sets of branch pipes 18. The cleaning solution enters the transfer box 17 through the inlet pipe 24 and the rotary joint 16, and then enters the branch pipes 18, thus allowing the cleaning solution to enter the filter element 11. The cleaned water is discharged through the outlet pipe 15. At this time, the drive structure drives the rotary box 10 to rotate, so that the filter element 11 installed on the branch pipe 18 rotates slowly while being cleaned under the action of the rotary joint 16. This generates tangential flow on the membrane surface, forming a "shear force", which makes the cleaning solution more evenly distributed inside the membrane module and avoids local concentrations that are too high or too low. This improves the cleaning efficiency while cleaning multiple sets of filter elements simultaneously. Furthermore, the transmission structure can be activated according to the length specifications of the filter element 11 to move the right side box 4, thereby improving the applicability of the device.
[0026] Based on the above, in order to achieve the rotation of the rotating box 10, the specific details of the drive structure can be found in [reference needed]. Figure 5 and Figure 7 As can be seen, the drive structure includes a geared motor 19, a rotating shaft 20, and a gear 25. The geared motor 19 is installed on the inner side of the right side box 4, and its output end is connected to the rotating shaft 20 that passes through the right side box 4. The rotating shaft 20 has a gear 25 installed on its surface that forms a gear transmission with the internal gear 26. The geared motor 19 drives the rotating shaft 20 to rotate, and then drives the rotating box 10 to rotate through the meshing of the gear 25 and the internal gear 26.
[0027] Based on the above, in order to improve the stability of the rotating shaft 20 during rotation, please refer to the following: Figure 5 and Figure 7 As can be seen, a top plate 21 is installed on the upper end face of the right side box 4, and a mounting plate 22 is installed on the lower end face of the top plate 21. An opening is provided on the surface of the mounting plate 22, and its rotating shaft 20 passes through the opening and is connected to the inner ring of the bearing 23 installed in the opening.
[0028] For details on how the right-side box 4 moves via the transmission structure, please refer to [link / reference needed]. Figure 2 , Figure 3 , Figure 5 , Figure 6 As can be seen, the transmission structure includes a stepper motor 12, a lead screw 13, a bearing seat 14, a guide rail 3, and a slider 5. The guide rail 3 is symmetrically installed on the upper surface of the base frame 1, and the slider 5 is movably installed on the upper surface of the guide rail 3. The right box 4 is connected to the slider 5. The stepper motor 12 is installed on the inner side of the left box 2. Its output end is connected to the lead screw 13 and passes through the right box 4 to form a meshing transmission with the right box 4. The bearing seat 14 is also installed at the upper end of the base frame 1. One end of the lead screw 13 is connected to the bearing seat 14. The stepper motor 12 drives the lead screw 13 to rotate, thereby driving the right box 4 to move and adjust along the direction of the guide rail 3 through the meshing transmission with the right box 4, so as to realize the installation of filter elements 11 with different length specifications.
[0029] Based on the above, in order to improve the stability of the rotating box 10 during rotation, please refer to the following: Figure 3 and Figure 6 As can be seen, an mounting plate 6 is also installed on the upper end of the slider 5, a connecting plate 9 is installed on the upper end of the mounting plate 6, a connecting post 7 is installed on the surface of the connecting plate 9, one end of the connecting post 7 is connected to the surface of the right box 4, and a bearing 8 is installed on the surface of the connecting post 7, and the bearing 8 is in contact with the surface of the rotating box 10.
[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A filter element cleaning device, comprising a base frame (1), a left side box (2) mounted on the upper end of the base frame (1), and a transmission structure, wherein a right side box (4) is connected to the transmission structure, characterized in that: A multi-port connection structure is installed on the outer surface of the left box (2) and the surface of the right box (4). A drive structure is installed on the inner side of the right box (4). The drive structure is connected to the multi-port connection structure and drives the multi-port connection structure to rotate. A filter element (11) is installed between the two sets of multi-port connection structures. The multi-port connection structure includes a rotating box (10), an outlet pipe (15), a rotary joint (16), a transfer box (17), a branch pipe (18), an inlet pipe (24), and an internal gear (26). The outlet pipe (15) passes through the left box (2) and one end is connected to the rotary joint (18). 6) Connection: The interior of the rotating box (10) is hollow. A transfer box (17) is installed on the inner side of the rotating box (10) and connected to the other end of the rotary joint (16). Branch pipes (18) are arranged in a ring array on the surface of the transfer box (17) and extend outward to one side of the rotating box (10). The liquid inlet pipe (24) passes through the right side box (4) and is connected to another set of rotary joints (16). A filter element (11) is connected between the two sets of branch pipes (18). An internal gear (26) is installed on the outer side of one set of rotating boxes (10) and connected to the drive structure.
2. The filter element cleaning device according to claim 1, characterized in that: The drive structure includes a geared motor (19), a rotating shaft (20), and a gear (25). The geared motor (19) is installed on the inner side of the right side box (4), and its output end is connected to the rotating shaft (20) that passes through the right side box (4). The rotating shaft (20) is mounted on the surface of the rotating shaft (20) to form a gear transmission with the internal gear (26).
3. The filter element cleaning device according to claim 2, characterized in that: The upper end face of the right side box (4) is equipped with a top plate (21), and the lower end face of the top plate (21) is equipped with a mounting plate two (22). The surface of the mounting plate two (22) has an opening, through which its rotating shaft (20) passes and is connected to the inner ring of the bearing two (23) installed in the opening.
4. The filter element cleaning device according to claim 1, characterized in that: The transmission structure includes a stepper motor (12), a lead screw (13), a bearing seat (14), a guide rail (3), and a slider (5). The guide rail (3) is symmetrically installed on the upper surface of the base frame (1), and the slider (5) is movably installed on the upper surface of the guide rail (3). The right side box (4) is connected to the slider (5). The stepper motor (12) is installed on the inner side of the left side box (2), and its output end is connected to the lead screw (13) and passes through the right side box (4) to form a meshing transmission with the right side box (4). The bearing seat (14) is also installed at the upper end of the base frame (1), and one end of its lead screw (13) is connected to the bearing seat (14).
5. A filter element cleaning device according to claim 4, characterized in that: The upper end of the slider (5) is also equipped with an installation plate (6), the upper end of the installation plate (6) is equipped with a connecting plate (9), the surface of the connecting plate (9) is equipped with a connecting column (7), one end of the connecting column (7) is connected to the surface of the right side box (4), and a bearing (8) is installed on the surface of the connecting column (7), and the bearing (8) is in contact with the surface of the rotating box (10).