A water treatment membrane module cleaning device

Abstract

The utility model relates to water treatment technical field, concretely is a kind of water treatment membrane module cleaning device, including bottom plate, the bottom plate top one side fixed mounting has control module, the top fixed mounting of bottom plate has cleaning tank, the fixing device for fixing water treatment membrane module is installed in the cleaning tank, the top of bottom plate is installed with moving mechanism, and cleaning mechanism is installed on the moving mechanism;The moving mechanism includes support frame, guide rod, moving block, screw rod, support plate and moving motor, the support plate is equipped with four, four The support plate fixed mounting is in the top of bottom plate, this water treatment membrane module cleaning device can directly strip stubborn dirt, need not rely on the slow action of soaking or circulation, the synchronous operation of moving and rotating makes single group membrane module cleaning time shorten, and need not repeat cleaning, significantly reduce the shutdown loss of water treatment system due to membrane cleaning, improve overall operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a water treatment membrane module cleaning device. Background Technology

[0002] Water treatment membrane technology, as one of the core technologies for water purification, wastewater treatment, and water resource recycling, is widely used in municipal water supply, industrial wastewater treatment, and seawater desalination. During long-term operation, water treatment membrane modules (such as ultrafiltration membranes and reverse osmosis membranes) are prone to accumulating contaminants (such as organic matter, colloids, microorganisms, and inorganic scale) on their membrane surfaces, leading to decreased membrane flux, reduced filtration efficiency, and even shortened membrane module lifespan. Therefore, regular and efficient cleaning of water treatment membrane modules is crucial for maintaining their normal operation.

[0003] Currently, common water treatment membrane modules often employ online cleaning. Online cleaning typically uses internal circulation rinsing, but this method has cleaning blind spots and limited effectiveness in cleaning stubborn dirt inside complex flow channels, resulting in incomplete cleaning and low efficiency. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a water treatment membrane module cleaning device. The technical solution adopted is as follows: a base plate is included, a control module is fixedly installed on one side of the top of the base plate, a cleaning box is fixedly installed on the top of the base plate, a fixture for fixing the water treatment membrane module is installed in the cleaning box, a moving mechanism is installed on the top of the base plate, and a cleaning mechanism is installed on the moving mechanism. The moving mechanism includes a support frame, a guide rod, a moving block, a lead screw, a support plate, and a moving motor. Four support plates are provided, and the four support plates are fixedly installed on the top of the base plate. The opposite sides of the upper ends of two support plates on the same side are rotatably connected to both ends of the lead screw. One end of the lead screw passes through a threaded hole on the side of one of the moving blocks. The two ends of the guide rod are fixedly connected to the opposite sides of the other two support plates. One end of the guide rod passes through a sliding hole on the side of another moving block. The tops of the two moving blocks are respectively fixedly connected to the bottoms of both ends of the support frame. The support frame is U-shaped. The moving motor is fixedly installed on the side of the upper end of one of the support plates. The output shaft of the moving motor passes through a through hole in the support plate and is fixedly connected to one end of the lead screw. The cleaning mechanism includes a water tank, a rotary motor, and a rotary joint. The rotary joint is fixedly installed in a through hole on the lower side of the support frame. The rotating end of the rotary joint is connected to one end of a rotating tube, and the other end of the rotating tube is sealed. At least four nozzles are installed on the side of the sealed end of the rotating tube, and the nozzles communicate with the interior of the rotating tube. A through hole is provided on the side of one end of the cleaning tank to mate with the rotating tube and the nozzles. The water tank is fixedly installed on the top of one end of the base plate. The water outlet on the side of the water tank is connected to one end of a water pipe, and the other end of the water pipe is connected to the rotary joint. The water pipe is a flexible hose, and a water pump is installed on the water pipe. The water pump is fixedly installed on the side of the water tank. The rotary motor is fixedly installed on the side of the lower end of the support frame. The output shaft of the rotary motor passes through a through hole on the support frame and is fixedly connected to the middle of the end face of the drive gear. The drive gear meshes with a transmission gear, and the transmission gear is fixedly installed on the rotating tube. The moving motor, water pump, and rotary motor are electrically connected to the control module.

[0005] As a preferred technical solution of this utility model, the fixing device includes a handwheel, a screw, a movable plate, and a fixed plate. The middle part of the end face of the handwheel is fixedly connected to one end of the screw. The other end of the screw passes through a screw hole on the side of the cleaning tank and is rotatably connected to the side of the movable plate. The movable plate is L-shaped, and the sides of both ends of the movable plate contact the inner wall of the cleaning tank. The two ends of the fixed plate are fixedly connected to the opposite sides of the other end of the cleaning tank. The side of the fixed plate is provided with a through hole that cooperates with the nozzle and the rotating tube.

[0006] As a preferred embodiment of this utility model, the sides of the two movable blocks are respectively fixedly connected to the sides of one end of the two reinforcing plates, and the sides of the other end of the two reinforcing plates are fixedly connected to the sides of the middle part of the support frame.

[0007] As a preferred embodiment of this utility model, a U-shaped mesh plate is fixedly installed on the side of the movable plate, and a positioning ring is fixedly installed on the side of the mesh plate.

[0008] As a preferred embodiment of this utility model, a support ring is fixedly installed on the inner wall of the lower end of the cleaning tank. A filter screen is placed on the top of the support ring, and filter cotton is fixedly connected to the bottom of the filter screen. The water outlet on the side of the lower end of the cleaning tank is connected to one end of a circulation pipe, and the other end of the circulation pipe is connected to the water inlet on the side of the water tank. A circulation pump is installed on the circulation pipe, and the circulation pump is fixedly installed on the side of the cleaning tank. The circulation pump is electrically connected to the control module.

[0009] The beneficial effects of this utility model are as follows: 1. This utility model uses a moving mechanism to drive the cleaning mechanism to move smoothly along the length of the membrane module, ensuring that the cleaning range covers the entire length of the membrane module; the rotary motor drives the rotating tube and nozzle to rotate 360 ​​degrees through gear transmission, so that the cleaning fluid is sprayed onto the membrane surface and the inside of the flow channel at multiple angles and with high impact force. This can not only penetrate deep into the internal flow channel of the membrane module to flush out colloids and microorganisms, but also dissolve inorganic salt scale, thoroughly solving the problem of local fouling residue. The high-flow-rate cleaning fluid with pressurized nozzles can directly remove stubborn fouling without relying on the slow action of soaking or circulation. The synchronous operation of movement and rotation shortens the cleaning time of a single membrane module and eliminates the need for repeated cleaning, significantly reducing downtime losses caused by membrane cleaning in the water treatment system and improving overall operating efficiency.

[0010] 2. The fixture can clamp membrane modules of different diameters and lengths, and the mesh plate and positioning ring can position the membrane modules to prevent them from shaking or misaligning during cleaning. It combines stable fixation with membrane protection. The filter screen and filter cotton can filter out suspended pollutants in the cleaning wastewater. The circulating pump returns the filtered cleaning liquid to the water tank for reuse, reducing the cost of use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cleaning mechanism of this utility model; Figure 3 This is a schematic diagram of the fixture structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the cleaning box of this utility model; Figure 5 This is a schematic diagram of the cross-sectional structure of the filter screen and filter cotton of this utility model.

[0012] In the diagram: 1. Base plate, 2. Control module, 3. Cleaning tank, 4. Fixing device, 41. Handwheel, 42. Screw, 43. Moving plate, 44. Fixing plate, 5. Moving mechanism, 51. Support frame, 52. Guide rod, 53. Moving block, 54. Lead screw, 55. Support plate, 56. Moving motor, 6. Cleaning mechanism, 61. Nozzle, 62. Water tank, 63. Water pump, 64. Rotary pipe, 65. Water pipe, 66. Drive gear, 67. Transmission gear, 68. Rotary motor, 69. Rotary joint, 7. Reinforcing plate, 8. Mesh plate, 9. Positioning ring, 10. Support ring, 11. Filter screen, 12. Filter cotton, 13. Circulation pipe, 14. Circulation pump. Detailed Implementation

[0013] Example 1 like Figures 1 to 5As shown, this utility model discloses a water treatment membrane module cleaning device. The technical solution adopted is as follows: it includes a base plate 1, a control module 2 is fixedly installed on one side of the top of the base plate 1, a cleaning tank 3 is fixedly installed on the top of the base plate 1, and a fixture 4 for fixing the water treatment membrane module is installed inside the cleaning tank 3. The fixture 4 includes a handwheel 41, a screw 42, a moving plate 43, and a fixed plate 44. The middle part of the end face of the handwheel 41 is fixedly connected to one end of the screw 42, and the other end of the screw 42 passes through a screw hole on the side of the cleaning tank 3 and is rotatably connected to the side of the moving plate 43. The moving plate 43 is L-shaped, and the sides of both ends of the moving plate 43 contact the inner wall of the cleaning tank 3. A U-shaped mesh plate 8 is fixedly installed on the side of the moving plate 43, and a positioning ring 9 is fixedly installed on the side of the mesh plate 8. The two ends of the fixed plate 44 are fixedly connected to the opposite sides inside the other end of the cleaning tank 3. A through hole is opened on the side of the fixed plate 44 to cooperate with the nozzle 61 and the rotating tube 64. The clamping device 4 can clamp membrane modules of different diameters and lengths, and can also position the membrane modules through the screen plate 8 and the positioning ring 9 to prevent the membrane modules from shaking or misaligning during cleaning, thus achieving both stable fixation and membrane protection. A moving mechanism 5 is installed on the top of the base plate 1, and a cleaning mechanism 6 is installed on the moving mechanism 5. A support ring 10 is fixedly installed on the inner wall of the lower end of the cleaning tank 3. A filter screen 11 is placed on the top of the support ring 10, and a filter cotton 12 is fixedly connected to the bottom of the filter screen 11. The water outlet on the lower side of the cleaning tank 3 is connected to one end of the circulation pipe 13, and the other end of the circulation pipe 13 is connected to the water inlet on the side of the water tank 62. A circulation pump 14 is installed on the circulation pipe 13 and is fixedly installed on the side of the cleaning tank 3. The circulation pump 14 is electrically connected to the control module 2. The filter screen 11 and the filter cotton 12 can filter out suspended pollutants in the cleaning wastewater. The circulation pump 14 returns the filtered cleaning liquid to the water tank 62 for reuse, reducing the cost of use. The moving mechanism 5 includes a support frame 51, a guide rod 52, a moving block 53, a lead screw 54, a support plate 55, and a moving motor 56. There are four support plates 55, which are fixedly installed on the top of the base plate 1. The opposite sides of the upper ends of two support plates 55 on the same side are rotatably connected to the two ends of the lead screw 54. One end of the lead screw 54 passes through the thread hole on the side of one of the moving blocks 53. The two ends of the guide rod 52 are fixedly connected to the opposite sides of the other two support plates 55. One end of the guide rod 52 passes through the sliding hole on the side of another moving block 53. The tops of the two moving blocks 53 are fixedly connected to the bottoms of both ends of the support frame 51. The support frame 51 is U-shaped. The sides of the two moving blocks 53 are fixedly connected to the sides of one end of the two reinforcing plates 7. The sides of the other ends of the two reinforcing plates 7 are fixedly connected to the side of the middle part of the support frame 51. The moving motor 56 is fixedly installed on the side of the upper end of one of the support plates 55. The output shaft of the moving motor 56 passes through the through hole on the support 55 and is fixedly connected to one end of the lead screw 54. The cleaning mechanism 6 includes a water tank 62, a rotary motor 68, and a rotary joint 69. The rotary joint 69 is fixedly installed in a through hole on the lower side of the support frame 51. The rotating end of the rotary joint 69 is connected to one end of a rotating tube 64, and the other end of the rotating tube 64 is sealed. At least four nozzles 61 are installed on the side of the sealed end of the rotating tube 64, and the nozzles 61 communicate with the interior of the rotating tube 64. A through hole is provided on the side of one end of the cleaning tank 3 to mate with the rotating tube 64 and the nozzles 61. The water tank 62 is fixedly installed on the top of one end of the base plate 1. The water outlet on the side of the water tank 62 is connected to one end of a water pipe 65. The other end of 65 is connected to the rotary joint 69. The water pipe 65 is a flexible hose, and a water pump 63 is installed on the water pipe 65. The water pump 63 is fixedly installed on the side of the water tank 62. The rotary motor 68 is fixedly installed on the side of the lower end of the support frame 51. The output shaft of the rotary motor 68 passes through the through hole on the support frame 51 and is fixedly connected to the middle of the end face of the drive gear 66. The drive gear 66 meshes with the transmission gear 67. The transmission gear 67 is fixedly installed on the rotary tube 64. The moving motor 56, the water pump 63 and the rotary motor 68 are electrically connected to the control module 2. The rotary motor 68 drives the rotary tube 64 and the nozzle 61 to rotate 360 ​​degrees through gear transmission, so that the cleaning liquid is sprayed into the membrane and the flow channel with multiple angles and high impact force, penetrating deep into the flow channel of the membrane module to flush out colloids and microorganisms, dissolve inorganic salt scale, and completely solve the problem of local dirt residue. The high-flow-rate cleaning fluid from the pressurized nozzle 61 can directly remove stubborn dirt without relying on the slow action of soaking or circulation. The synchronous operation of movement and rotation shortens the cleaning time of a single membrane module and eliminates the need for repeated cleaning, significantly reducing downtime losses caused by membrane cleaning in the water treatment system and improving overall operating efficiency.

[0014] The working principle of this utility model is as follows: The water treatment membrane module to be cleaned is placed in the cleaning tank 3, so that one end of the membrane module is attached to the fixing plate 44. The handwheel 41 of the fixing device 4 is rotated, which drives the screw 42 to rotate and pushes the moving plate 43 to slide along the inner wall of the cleaning tank 3. The membrane module is positioned by the U-shaped mesh plate 8 and the positioning ring 9 on the side of the moving plate 43 until the moving plate 43 and the fixing plate 44 clamp the membrane module together. The control module 2 simultaneously starts the moving mechanism 5 and the cleaning mechanism 6. The water pump 63 pressurizes the cleaning liquid in the water tank 62 and delivers it to the rotating tube 64 through the hose 65 and the rotary joint 69. Then it is sprayed out from the nozzle 61 under high pressure. At the same time, the rotating motor 68 drives the drive gear 66 to rotate. Through the meshing with the transmission gear 67, the rotating tube 64 and the nozzle 61 are driven to make a 360° circular motion. The moving motor 56 drives the lead screw 54 to rotate, so that the lead screw 54 and the guide rod 52 are sleeved on the lead screw 54 and the guide rod 52 are rotated. The moving block 53 drives the support frame 51 and the cleaning mechanism 6 to move smoothly along the length of the membrane module, allowing the nozzle 61 to enter the interior of the membrane module and achieve multi-dimensional coverage cleaning of the membrane module. This creates a ring-shaped spray zone for the high-pressure cleaning fluid, which can penetrate deep into the internal flow channels of the membrane module to flush out colloids and microorganisms, dissolve inorganic salt scale, and thoroughly solve the problem of local dead corners in traditional internal circulation rinsing. The waste liquid generated during the cleaning process flows into the bottom of the cleaning tank 3 under the action of gravity. After two stages of filtration, the filter screen 11 intercepts large particulate pollutants and the filter cotton 12 adsorbs fine impurities. Then, the circulation pump 14 is started, and the filtered cleaning liquid is sent back to the water tank 62 for reuse through the circulation pipe 13. When the cleaning is completed, the control module 2 sequentially shuts down the rotary motor 68, the water pump 63, the moving motor 56, and the circulation pump 14, and rotates the handwheel 41 in the opposite direction to loosen the moving plate 43 and remove the cleaned membrane module.

[0015] In practical use, depending on the composition of the impurities filtered out by the membrane module, one of the following can be selected: clean water, acidic cleaning solution, or alkaline cleaning solution. Acidic cleaning solution can be used for inorganic salt scale, while alkaline cleaning solution can be used for organic matter.

[0016] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0017] Components not described in detail in this article are existing technologies.

[0018] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A water treatment membrane module cleaning device, characterized in that, Includes a base plate (1), a control module (2) is fixedly installed on one side of the top of the base plate (1), a cleaning tank (3) is fixedly installed on the top of the base plate (1), a fixture (4) for fixing the water treatment membrane assembly is installed in the cleaning tank (3), a moving mechanism (5) is installed on the top of the base plate (1), and a cleaning mechanism (6) is installed on the moving mechanism (5). The moving mechanism (5) includes a support frame (51), a guide rod (52), a moving block (53), a lead screw (54), a support plate (55), and a moving motor (56). Four support plates (55) are provided, and the four support plates (55) are fixedly installed on the top of the base plate (1). The opposite sides of the upper ends of two support plates (55) on the same side are rotatably connected to both ends of the lead screw (54). One end of the lead screw (54) passes through a threaded hole on the side of one of the moving blocks (53). The guide rod (52)... Both ends are fixedly connected to the opposite sides of the other two support plates (55). One end of the guide rod (52) passes through the sliding hole on the side of another moving block (53). The tops of the two moving blocks (53) are fixedly connected to the bottoms of both ends of the support frame (51). The support frame (51) is U-shaped. The moving motor (56) is fixedly installed on the side of the upper end of one of the support plates (55). The output shaft of the moving motor (56) passes through the through hole on the support plate (55) and is fixedly connected to one end of the lead screw (54). The cleaning mechanism (6) includes a water tank (62), a rotary motor (68), and a rotary joint (69). The rotary joint (69) is fixedly installed in a through hole on the lower side of the support frame (51). The rotating end of the rotary joint (69) is connected to one end of the rotating tube (64). The other end of the rotating tube (64) is sealed. At least four nozzles (61) are installed on the side of the sealed end of the rotating tube (64). The nozzles (61) communicate with the interior of the rotating tube (64). A through hole is provided on the side of one end of the cleaning tank (3) to cooperate with the rotating tube (64) and the nozzles (61). The water tank (62) is fixedly installed on the top of one end of the base plate (1). The water outlet on the side of the water tank (62) is connected to the water pipe. One end of the water pipe (65) is connected to the other end of the water pipe (65) and connected to the rotary joint (69). The water pipe (65) is a flexible hose. A water pump (63) is installed on the water pipe (65). The water pump (63) is fixedly installed on the side of the water tank (62). The rotary motor (68) is fixedly installed on the side of the lower end of the support frame (51). The output shaft of the rotary motor (68) passes through the through hole on the support frame (51) and is fixedly connected to the middle of the end face of the drive gear (66). The drive gear (66) meshes with the transmission gear (67). The transmission gear (67) is fixedly installed on the rotary tube (64). The moving motor (56), the water pump (63) and the rotary motor (68) are electrically connected to the control module (2).

2. The water treatment membrane module cleaning device according to claim 1, characterized in that: The fixture (4) includes a handwheel (41), a screw (42), a movable plate (43), and a fixed plate (44). The middle part of the end face of the handwheel (41) is fixedly connected to one end of the screw (42). The other end of the screw (42) passes through the screw hole on the side of the cleaning tank (3) and is rotatably connected to the side of the movable plate (43). The movable plate (43) is L-shaped. The sides of both ends of the movable plate (43) are in contact with the inner wall of the cleaning tank (3). The two ends of the fixed plate (44) are fixedly connected to the opposite side of the other end of the cleaning tank (3). The side of the fixed plate (44) is provided with a through hole that cooperates with the nozzle (61) and the rotating tube (64).

3. The water treatment membrane module cleaning device according to claim 1, characterized in that: The sides of the two movable blocks (53) are fixedly connected to the sides of one end of the two reinforcing plates (7), and the sides of the other end of the two reinforcing plates (7) are fixedly connected to the sides of the middle part of the support frame (51).

4. A water treatment membrane module cleaning device according to claim 2, characterized in that: A U-shaped mesh plate (8) is fixedly installed on the side of the movable plate (43), and a positioning ring (9) is fixedly installed on the side of the mesh plate (8).

5. A water treatment membrane module cleaning device according to claim 1, characterized in that: A support ring (10) is fixedly installed on the inner wall of the lower end of the cleaning tank (3). A filter screen (11) is placed on the top of the support ring (10). A filter cotton (12) is fixedly connected to the bottom of the filter screen (11). The water outlet on the side of the lower end of the cleaning tank (3) is connected to one end of the circulation pipe (13). The other end of the circulation pipe (13) is connected to the water inlet on the side of the water tank (62). A circulation pump (14) is installed on the circulation pipe (13). The circulation pump (14) is fixedly installed on the side of the cleaning tank (3). The circulation pump (14) is electrically connected to the control module (2).

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