A cooling tower circulating water filtering device

Abstract

The invention relates to the technical field of filtering devices, and specifically discloses a cooling tower circulating water filtering device, comprising: a cylinder and a partition, wherein the partition is fixedly arranged inside the cylinder, and further comprising: a filter bag, a top extension rod, an expansion component, a cleaning component and a collecting box; the filter bag ring is arranged on the partition, the top extension rod ring is arranged in the cylinder, the expansion component is arranged on the top extension rod, the expansion component can expand the folded filter bag, the cleaning component is arranged inside the cleaning chamber, the collecting box is arranged inside the cleaning chamber, and the collecting box can collect cleaned impurities; a cooling tower circulating water filtering device of the invention can avoid folds and dirt from being hidden by the filter bags by folding and expanding the filter bags, and can clean the filter bags inside the filtering device, thereby avoiding manual removal and cleaning of the filter bags, reducing manual workload, and at the same time reducing the frequency of replacing the filter bags, saving economic costs.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, and in particular to a cooling tower circulating water filtering device. Background Art

[0002] The cooling tower circulating water filter device is a device used to improve the water quality of the cooling tower circulating water system, maintain cooling efficiency, and extend the service life of the equipment. The circulating water is continuously circulated in the cooling tower and will accumulate various impurities, such as suspended matter, silt, algae, microorganisms, etc. The filter device can effectively remove these impurities and prevent them from accumulating in the system, thereby ensuring the cooling effect of the cooling tower.

[0003] A Chinese patent with publication number CN209645974U discloses an easily replaceable bag filter, comprising: a filter cylinder, a filter cylinder cover installed on the top of the filter cylinder, a liquid inlet on one side of the filter cylinder, a liquid outlet at the bottom of the filter cylinder, two horizontally symmetrical mounting plates welded to the inner wall of the filter cylinder, a same filter screen cylinder fixedly installed at the bottom of the two mounting plates, a connecting fixing plate placed on the top of the two mounting plates, a same mounting frame fixedly installed at the bottom of the two connecting fixing plates, a filter bag fixedly installed at the bottom of the mounting frame, the filter bag is located in the filter screen cylinder, and a card slot is provided on the side of the two connecting fixing plates away from each other. This solution is convenient for opening the filter cylinder cover, cleaning the inside of the filter cylinder, disassembling the filter bag, and replacing the filter bag, and has a simple structure and is easy to use.

[0004] The above patent document can facilitate the opening of the filter cartridge cover, the disassembly of the filter bag, and the replacement of the filter bag. It has a simple structure and is easy to use. When cleaning the filter bag inside the bag filter, the filter bag material is relatively soft and prone to wrinkles and cleaning dead corners. It is generally necessary to manually take it out for cleaning or replacement, which increases the workload of manual labor. At the same time, since the cleaning of the filter bag is time-consuming and laborious, the filter bag is directly replaced after it is dirty, which makes the frequent replacement of the filter bag increase the cost of use. Summary of the invention

[0005] The present invention provides a cooling tower circulating water filter device, aiming to solve the problem in the related art that the filter bag is relatively soft, easily wrinkled and has dead corners when cleaning, and generally needs to be manually removed for cleaning or replaced, thereby increasing the manual workload. At the same time, frequent replacement of the filter bag increases the use cost of the filter device.

[0006] A cooling tower circulating water filtering device of the present invention comprises: a cylinder and a partition, wherein the partition is fixedly arranged inside the cylinder, the bottom wall of the partition to the inner bottom wall of the cylinder is a filtering cavity, the top wall of the partition to the inner top wall of the cylinder is a cleaning cavity, and further comprises: a filter bag, a top extension rod, an expansion support assembly, a cleaning assembly and a collection box;

[0007] The filter bag ring is arranged on the partition plate, the extending rod ring is arranged in the cleaning cavity of the cylinder, the extending rod is located below the filter bag and corresponds to the filter bag one by one, the extending rod can make the filter bag turned outward and located inside the cleaning cavity, the expansion assembly is arranged on the extending rod, the expansion assembly can expand the folded filter bag, the cleaning assembly is arranged inside the cleaning cavity, and the cleaning assembly can rotate along the circumference of the cylinder to clean multiple filter bags in turn, the cleaning assembly can clean the folded filter bag, and the collection box is arranged inside the cleaning cavity, and the collection box can collect the cleaned impurities.

[0008] The beneficial effects of the present invention are: by folding and expanding the filter bag to avoid folds and dirt hiding, the filter bag can be cleaned inside the filter device, thereby avoiding manual removal and cleaning of the filter bag, reducing manual workload, and at the same time reducing the frequency of filter bag replacement, saving economic costs.

[0009] Preferably, the bottom wall of the partition is ring-shaped with multiple filter cartridges 1, the top wall of the filter cartridge 1 is fixedly connected to the bottom wall of the partition, and multiple filter cartridges 2 are rotatably arranged on the upper part of the partition, and both the filter cartridges 1 and 2 are provided with water flow holes. When filtering water, the water flow holes on the filter cartridges 1 and 2 are correspondingly connected, and when cleaning, the water flow holes on the filter cartridges 1 and 2 are staggered and closed, a bottom plate is arranged at the bottom of the filter cartridge 1, a filter bag is arranged inside the filter cartridge 2, and a gear ring is arranged on the top of each filter cartridge 2.

[0010] The effect is to prevent the cleaned impurities from falling through the water holes or floating into the filter chamber, thus avoiding secondary pollution and ensuring the cleaning effect.

[0011] Preferably, a gear ring is rotatably provided on the cylinder, a full circle of teeth is provided on the outer circumferential surface of the gear ring, partial teeth one and partial teeth two are provided on the inner ring surface of the gear ring, and the partial teeth one and partial teeth two can mesh with the gear ring in sequence, a U-shaped fixing frame is provided on the outer circumferential surface of the cylinder, a motor is provided on the bottom wall of the U-shaped fixing frame, a rotating shaft is provided on the output end of the motor, a gear is provided on the outer circumferential surface of the rotating shaft, and the gear meshes with the teeth on the outer circumferential surface of the gear ring, a support plate is provided on the inner ring surface of the gear ring, and the cleaning component is provided on the top of the support plate.

[0012] Preferably, a partition plate 2 is provided inside the cylinder body, a top extension rod ring is arranged on the top of the partition plate 2, and a sealing cylinder is provided on the outer wall of each top extension rod, the top of the sealing cylinder is abutted against the bottom plate of the filter cartridge 1, the top end of the top extension rod extends to the inside of the filter cartridge 1, and the top extension rod is slidingly sealed in the filter cartridge 1, a top block is provided on the top of the top extension rod, the top block is a magnet block, and a magnet sheet is also provided at the bottom end of the filter bag, so that the top end of the top block is attracted to the magnet sheet at the bottom of the filter bag.

[0013] The effect is that the filter bag can be folded by the top extension rod, which is convenient for cleaning the impurity accumulation surface and improves the cleaning efficiency.

[0014] Preferably, the expansion support assembly includes: an expansion support plate, a slider 1, a slider 2, a strut 1, a strut 2, a driving gear and a driven gear, the extension rod is composed of an upper push rod and a lower push rod, and the diameter of the upper push rod is smaller than the diameter of the lower push rod, a plurality of grooves are provided on the outer circumference of the upper push rod, a bidirectional lead screw is provided in each groove, the slider 1 and the slider 2 are arranged on the outer circumference of the bidirectional lead screw, the bidirectional lead screw can make the slider 1 and the slider 2 move toward each other, one end of the strut 1 and the strut 2 are respectively hinged on the side walls of the slider 1 and the slider 2, the other end of the strut 1 and the strut 2 are hinged with a support sheet, and the expansion support plate is fixedly provided on the outer wall of one side of the support sheet.

[0015] The effect is that the filter bag can be expanded and stretched by the expansion component, thereby avoiding wrinkles or cleaning dead corners in the filter bag and improving the cleaning effect and efficiency.

[0016] Preferably, a motor is arranged inside the upper push rod, a driving gear is arranged on the top surface of the upper push rod, and an output end of the motor is connected to the driving gear, a driven gear is arranged at the top end of the bidirectional lead screw, and the driven gear is meshed with the driving gear.

[0017] Preferably, the cleaning assembly includes: a cleaning cylinder, an annular suction chamber and a cleaning ring, the cleaning cylinder is arranged on a support plate, the opening of the cleaning cylinder faces downward, the annular suction chamber is arranged on the outer circumferential surface of the cleaning cylinder, and the annular suction chamber is connected with the interior of the cleaning cylinder, and the collection box is connected with the annular suction chamber through a connecting tube.

[0018] Preferably, two screw rods are axially arranged inside the cleaning cylinder, a driving motor is arranged on the top of the cleaning cylinder, and the output end of the driving motor is transmission-connected to the screw rod, a guide frame is arranged on the outer wall of each screw rod, a cleaning ring is arranged between the two guide frames, and the cleaning ring is rotatably connected to the guide frame, a thread is arranged on the outer ring surface of the cleaning ring, the inner ring surface of the cleaning ring is cleaning material, a guide plate is arranged inside the cleaning cylinder, a spiral groove is opened on the guide plate, and the thread on the cleaning ring is meshed with the spiral groove on the guide plate.

[0019] The effect is that the cleaning ring can both rotate and move up and down, so that the filter bag can be cleaned in all directions without dead angles, ensuring the cleaning effect.

[0020] The beneficial effects of the present invention are:

[0021] When the filter bag needs to be cleaned, the cleaning assembly rotates to the top of one of the filter bags, and the extending rod under the filter bag extends upward. The extending rod pushes the bottom of the filter bag upward to move the bottom end of the filter bag from the filter cavity to the cleaning cavity, thereby folding the inner wall of the filter bag into the outer wall. Then the expansion assembly can expand the folded filter bag to make the filter bag more stable during cleaning and avoid dirt hiding in the folds of the filter bag. The cleaning assembly cleans the folded and expanded filter bag, and the collection box collects the impurities after cleaning, thereby avoiding manual removal and cleaning of the filter bag, reducing manual workload, and reducing the frequency of replacing the filter bag, saving economic costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the support plate structure of the present invention.

[0024] Figure 3 It is a schematic diagram of the filter bag structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the gear ring structure of the present invention.

[0026] Figure 5 It is a structural schematic diagram of a filter cartridge of the present invention.

[0027] Figure 6 It is a schematic diagram of the expansion support plate structure of the present invention.

[0028] Figure 7 It is a schematic diagram of the active gear structure of the present invention.

[0029] Figure 8 It is a schematic diagram of the cleaning cylinder structure of the present invention.

[0030] Fig. 9 It is a schematic diagram of the cleaning ring structure of the present invention.

[0031] Reference numerals:

[0032] 10. Cylinder; 11. Support legs; 12. Top cover; 20. Partition plate; 21. Filter cartridge 1; 22. Filter cartridge 2; 23. Filter bag; 25. Gear ring; 30. Gear ring; 31. U-shaped fixing frame; 32. Motor; 33. Rotating shaft; 34. Gear; 35. Partial tooth 1; 36. Partial tooth 2; 40. Partition plate 2; 41. Sealing cylinder; 42. Extending rod; 43. Expanding support plate; 44. Top block; 5 0. Support plate; 51. Water inlet hole; 52. Cleaning cylinder; 53. Annular suction chamber; 54. Driving motor; 55. Screw; 56. Guide frame; 57. Cleaning ring; 58. Guide plate; 60. Driving gear; 61. Driven gear; 62. Bidirectional screw; 63. Slider 1; 64. Support rod 1; 65. Slider 2; 66. Support rod 2; 67. Support sheet; 80. Collection box; 90. Water outlet. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 9 As shown, a cooling tower circulating water filtering device of the present invention comprises: a cylinder 10 and a partition 20, the partition 20 is fixedly arranged inside the cylinder 10, the bottom wall of the partition 20 to the inner bottom wall of the cylinder 10 is a filtering cavity, the top wall of the partition 20 to the inner top wall of the cylinder 10 is a cleaning cavity, and also comprises: a filter bag 23, a top extension rod 42, an expansion support assembly, a cleaning assembly and a collection box 80, the filter bag 23 is arranged on the partition 20 with a spacer ring, and the top extension rod 42 is arranged in a ring-shaped interval on the cleaning cavity of the cylinder 10 The cylinder 10 is provided with a cleaning assembly, and the cleaning assembly can rotate along the circumference of the cylinder 10, and the cleaning assembly can clean the folded filter bag 23. The collecting box 80 is provided inside the cleaning chamber, and the collecting box 80 can collect the cleaned impurities.

[0035] When the filter bag 23 needs to be cleaned, the cleaning assembly rotates to the top of one of the filter bags 23, and the extension rod 42 under the filter bag 23 extends upward. The extension rod 42 pushes the bottom of the filter bag 23 to move upward, so that the bottom end of the filter bag 23 moves from the filter cavity to the cleaning cavity, thereby folding the inner wall of the filter bag 23 into the outer wall. Then the expansion assembly can expand the folded filter bag 23 to make the filter bag 23 more stable during cleaning, while avoiding dirt hiding in the folds of the filter bag 23. The cleaning assembly cleans the folded and expanded filter bag 23, and the collection box 80 collects the impurities after cleaning, thereby avoiding the need to manually remove the filter bag 23 for cleaning, reducing the manual workload, and reducing the frequency of replacing the filter bag 23, saving economic costs.

[0036] like Figures 2 to 5 As shown, a plurality of filter cartridges 21 are provided around the bottom wall of the partition 20, and the top wall of the filter cartridge 21 is fixedly connected to the bottom wall of the partition 20, and a plurality of filter cartridges 22 are rotatably provided on the upper portion of the partition 20, and both the filter cartridges 21 and the filter cartridges 22 are provided with water flow holes. When filtering water, the water flow holes on the filter cartridges 21 and the filter cartridges 22 are correspondingly connected, and when cleaning, the water flow holes on the filter cartridges 21 and the filter cartridges 22 are staggered and closed, a bottom plate is provided at the bottom of the filter cartridge 21, a filter bag 23 is provided inside the filter cartridge 22, and the filter bag 23 is fixed to the filter cartridge 22 by a limiting structure. In this embodiment, the limiting structure is a bolt, and the filter bag 23 is fixed to the filter cartridge 22 by bolts, and a toothed ring 25 is provided on the top of each filter cartridge 22.

[0037] like Figure 4 As shown, a gear ring 30 is rotatably provided on the cylinder 10, and a full circle of teeth is provided on the outer circumferential surface of the gear ring 30, and a partial tooth 1 35 and a partial tooth 2 36 are provided on the inner ring surface of the gear ring 30, and the partial tooth 1 35 and the partial tooth 2 36 can mesh with the gear ring 25 in sequence, and a U-shaped fixing frame 31 is provided on the outer circumferential surface of the cylinder 10, and a motor 32 is provided on the bottom wall of the U-shaped fixing frame 31, and a rotating shaft 33 is provided on the output end of the motor 32, and a gear 34 is provided on the outer circumferential surface of the rotating shaft 33, and the gear 34 meshes with the teeth on the outer circumferential surface of the gear ring 30, and a support plate 50 is provided on the inner ring surface of the gear ring 30, and a cleaning component is provided on the top of the support plate 50.

[0038] When the filter bag 23 needs to be cleaned, the motor 32 drives the shaft 33 to rotate, and the rotation of the shaft 33 drives the gear 34 to rotate. Since the gear 34 is meshed with the teeth on the outer peripheral surface of the ring gear 30, the rotation of the gear 34 drives the ring gear 30 to rotate. The rotation of the ring gear 30 drives the partial teeth 1 35 and the partial teeth 2 36 to rotate. The partial teeth 1 35 are meshed with the gear ring 25. Therefore, the rotation of the ring gear 30 drives the filter cartridge 2 22 to rotate. The rotation of the filter cartridge 22 makes the water flow holes and the water flow holes on the filter cartridge 1 21 staggered and closed, thereby preventing the cleaned impurities from falling or floating into the filter cavity through the water flow holes. At the same time, the filter cartridge The first 21 and the second filter cartridge 22 guide the folding of the filter bag 23. The rotation of the ring gear 30 drives the support plate 50 to rotate at the same time. The rotation of the support plate 50 drives the cleaning component to rotate. After the cleaning component rotates to the top of one of the filter bags 23, the top extension rod 42 under the filter bag 23 will fold the filter bag 23 and expand it through the expansion component. Then the cleaning component cleans the folded filter bag 23. After cleaning, the ring gear 30 continues to rotate, and the local tooth second 36 engages with the ring gear 25 to make the water flow holes on the two filter cartridges communicate with each other. The filter bags 23 are cleaned in turn through the above working principle.

[0039] like Figures 3 to 7 As shown, a partition 2 40 is provided inside the cylinder 10, and a hole is opened in the partition 2 40. A push rod 42 is arranged on the top of the partition 2 40, and a sealing cylinder 41 is provided on the outer wall of each push rod 42. The sealing cylinder 41 can protect the push rod 42 and prevent the push rod 42 from being immersed in the filtered water. The top of the sealing cylinder 41 abuts against the bottom plate of the filter cartridge 21, and the top of the push rod 42 extends to the inside of the filter cartridge 21, and the push rod 42 is slidingly sealed in the filter cartridge 21. A top block 44 is provided on the top of the push rod 42, and the top block 44 is a magnet block. A magnet sheet is also provided at the bottom end of the filter bag 23, so that the top of the top block 44 is attracted to the magnet sheet at the bottom of the filter bag 23, which stabilizes the filter bag 23 and facilitates the folding of the filter bag 23.

[0040] When folding is required, the extension rod 42 pushes the filter bag 23 upward, pushing the filter bag 23 from the filter chamber to the cleaning chamber, thereby folding the inner wall of the filter bag 23 into the outer wall, and then the expansion component can expand the folded filter bag 23. At the same time, after the filter bag 23 is cleaned, the extension rod 42 moves downward. Since the magnet block and the magnet sheet are attracted to each other, the downward movement of the extension rod 42 can pull the filter bag 23 downward, thereby folding the filter bag 23 again to restore it to its original state.

[0041] like Figures 4 to 7As shown, the expansion support assembly includes: an expansion support plate 43, a slider 1 63, a slider 2 65, a support rod 1 64, a support rod 2 66, a driving gear 60 and a driven gear 61, the extension rod 42 is composed of an upper push rod and a lower push rod, and the diameter of the upper push rod is smaller than the diameter of the lower push rod, and a plurality of grooves are provided on the outer circumference of the upper push rod, and a bidirectional lead screw 62 is provided in each groove, and the slider 1 63 and the slider 2 65 are provided on the outer circumference of the bidirectional lead screw 62, and the bidirectional lead screw 62 can make the slider 1 63 and the slider 2 65 face each other Move, one end of the support rod 1 64 and the support rod 2 66 are hinged on the side walls of the slider 1 63 and the slider 2 65 respectively, and the other end of the support rod 1 64 and the support rod 2 66 is hinged to provide a support plate 67, and the expansion plate 43 is fixedly set on the outer wall of one side of the support plate 67. A motor is set inside the upper push rod, and the driving gear 60 is set on the top surface of the upper push rod, and the output end of the motor is connected to the driving gear 60, and the driven gear 61 is set at the top of the bidirectional lead screw 62, and the driven gear 61 is meshed with the driving gear 60.

[0042] When the folded filter bag 23 needs to be expanded, the motor drives the driving gear 60 to rotate. Since the driven gear 61 is meshed with the driving gear 60, the driving gear 60 rotates to drive the driven gear 61 to rotate. The driven gear 61 rotates to drive the bidirectional lead screw 62 to rotate. The bidirectional lead screw 62 rotates to drive the slider 1 63 and the slider 2 65 to move toward each other. The movement of the slider 1 63 and the slider 2 65 drives the support rod 1 64 and the support rod 2 66 to push the expansion plate 43 to move, so that the multiple expansion plates 43 are evenly expanded outward. The expansion plate 43 is an arc-shaped sheet, so that the filter bag 23 can be evenly expanded. The surface of the expanded filter bag 23 is flat to avoid wrinkles and dirt, thereby improving the cleaning effect and efficiency.

[0043] like Figures 8 to 9As shown, the cleaning assembly includes: a cleaning cylinder 52, an annular suction chamber 53 and a cleaning ring 57. The cleaning cylinder 52 is arranged on the support plate 50, and the opening of the cleaning cylinder 52 faces downward. The annular suction chamber 53 is arranged on the outer circumference of the cleaning cylinder 52, and the annular suction chamber 53 is connected with the inside of the cleaning cylinder 52, so that the impurities under cleaning can be sucked. The collecting box 80 is connected with the annular suction chamber 53 through a connecting pipe. Two screw rods 55 are axially arranged inside the cleaning cylinder 52. A driving motor 54 is arranged on the top of the cleaning cylinder 52, and the output end of the driving motor 54 is transmission-connected with the screw rod 55. The outer wall of each screw rod 55 is provided with a guide frame 56. 55 can drive the guide frame 56 to move up and down. The guide frame 56 is arc-shaped, and the end face of the guide frame 56 is U-shaped. The cleaning ring 57 is arranged between the two guide frames 56, and the cleaning ring 57 is rotatably connected with the guide frame 56. The outer ring surface of the cleaning ring 57 is provided with a thread, and the inner ring surface of the cleaning ring 57 is a cleaning material for cleaning the surface of the filter bag 23. A guide plate 58 is arranged inside the cleaning cylinder 52, and the guide plate 58 is provided with a spiral groove, and the thread on the cleaning ring 57 is meshed with the spiral groove on the guide plate 58. A guide rod is arranged inside the cleaning cylinder 52, and the guide rod runs through the guide frame 56 to make the movement of the guide frame 56 more stable.

[0044] When the folded filter bag 23 is to be cleaned, the driving motor 54 drives the screw rod 55 to rotate, and the rotation of the screw rod 55 drives the guide frame 56 to move from top to bottom, and the movement of the guide frame 56 drives the cleaning ring 57 to move. Since the thread on the cleaning ring 57 is engaged with the spiral groove on the guide plate 58, the cleaning ring 57 can move up and down and rotate, so that the filter bag 23 can be cleaned up and down and rotated, thereby improving the cleaning effect and efficiency of the filter bag 23. The cleaned impurities will fall into the annular cavity generated between the filter bag 23 and the cleaning cylinder 52, and then the annular suction cavity 53 will suck the impurities, and finally the impurities will be collected by the collection box 80.

[0045] like Figure 1 , Figure 2 and Figure 8 As shown, the outer peripheral surface of the cylinder 10 is provided with supporting legs 11, the top of the cylinder 10 is provided with a top cover 12, the top of the top cover 12 is provided with a water inlet, the water inlet is used to transport circulating water to the filter bag 23 for filtration, the bottom of the cylinder 10 is provided with a water outlet 90, the water outlet 90 is used to discharge the filtered circulating water, and the support plate 50 is provided with a water inlet hole 51, the water inlet hole 51 corresponds to the filter bag 23 one by one, so that the circulating water enters the filter bag 23 through the water inlet hole 51.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A cooling tower circulating water filtering device, comprising: The cylinder and the partition are fixedly arranged inside the cylinder, the bottom wall of the partition to the inner bottom wall of the cylinder is the filter cavity, and the top wall of the partition to the inner top wall of the cylinder is the cleaning cavity, characterized in that it also includes: a filter bag, a top extension rod, an expansion component, a cleaning component and a collection box; The filter bag ring is arranged on the partition plate, the extension rod ring is arranged in the filter cavity of the cylinder, the extension rod is located below the filter bag and corresponds to the filter bag one by one, the extension rod can make the filter bag turn outward and be located inside the cleaning cavity, the expansion assembly is arranged on the extension rod, the expansion assembly can expand the folded filter bag, the cleaning assembly is arranged inside the cleaning cavity, and the cleaning assembly can rotate along the circumference of the cylinder to clean multiple filter bags in turn, the cleaning assembly can clean the folded filter bag, the collection box is arranged inside the cleaning cavity, and the collection box can collect the cleaned impurities; The bottom wall of the partition is ring-shaped with multiple filter cartridges 1, the top wall of the filter cartridge 1 is fixedly connected to the bottom wall of the partition, and multiple filter cartridges 2 are rotatably arranged on the upper side of the partition, and both the filter cartridges 1 and 2 are provided with water flow holes. When filtering water, the water flow holes on the filter cartridges 1 and 2 are correspondingly connected, and when cleaning, the water flow holes on the filter cartridges 1 and 2 are staggered and closed. A bottom plate is arranged at the bottom of the filter cartridge 1, and a filter bag is arranged inside the filter cartridge 2. A gear ring is arranged on the top of each filter cartridge 2.

2. A cooling tower circulating water filter device according to claim 1, characterized in that: A gear ring is rotatably arranged on the cylinder, a full circle of teeth is arranged on the outer circumferential surface of the gear ring, partial teeth one and partial teeth two are arranged on the inner ring surface of the gear ring, and the partial teeth one and partial teeth two can mesh with the gear ring in sequence, a U-shaped fixing frame is arranged on the outer circumferential surface of the cylinder, a motor is arranged on the bottom wall of the U-shaped fixing frame, a rotating shaft is arranged on the output end of the motor, a gear is arranged on the outer circumferential surface of the rotating shaft, and the gear meshes with the teeth on the outer circumferential surface of the gear ring, a support plate is arranged on the inner ring surface of the gear ring, and a cleaning component is arranged on the top of the support plate.

3. A cooling tower circulating water filter device according to claim 2, characterized in that: A partition plate 2 is arranged inside the cylinder body, a push rod ring is arranged on the top of the partition plate 2, and a sealing cylinder is arranged on the outer wall of each push rod, the top of the sealing cylinder is abutted against the bottom plate of the filter cartridge 1, the top end of the push rod extends to the inside of the filter cartridge 1, and the push rod is slidingly sealed on the filter cartridge 1, a top block is arranged on the top of the push rod, the top block is a magnet block, and a magnet sheet is also arranged at the bottom of the filter bag, so that the top end of the top block and the magnet sheet at the bottom of the filter bag are attracted to each other.

4. A cooling tower circulating water filter device according to claim 1, characterized in that: The expansion and support assembly includes: an expansion and support plate, a slider 1, a slider 2, a support rod 1, a support rod 2, a driving gear and a driven gear. The extension rod is composed of an upper push rod and a lower push rod, and the diameter of the upper push rod is smaller than the diameter of the lower push rod. A plurality of grooves are provided on the outer circumference of the upper push rod, and a bidirectional lead screw is provided in each groove. The slider 1 and the slider 2 are arranged on the outer circumference of the bidirectional lead screw, and the bidirectional lead screw can make the slider 1 and the slider 2 move toward each other. One end of the support rod 1 and the support rod 2 are respectively hinged on the side walls of the slider 1 and the slider 2, and the other end of the support rod 1 and the support rod 2 is hinged to a support sheet, and the expansion and support plate is fixedly provided on the outer wall of one side of the support sheet.

5. A cooling tower circulating water filter device according to claim 4, characterized in that: A motor is arranged inside the upper push rod, a driving gear is arranged on the top surface of the upper push rod, and the output end of the motor is connected with the driving gear, a driven gear is arranged on the top end of the bidirectional lead screw, and the driven gear is meshed with the driving gear.

6. A cooling tower circulating water filter device according to claim 1, characterized in that: The cleaning assembly includes: a cleaning cylinder, an annular suction chamber and a cleaning ring. The cleaning cylinder is arranged on a support plate, the opening of the cleaning cylinder faces downward, the annular suction chamber is arranged on the outer circumferential surface of the cleaning cylinder, and the annular suction chamber is connected with the inside of the cleaning cylinder, and the collection box is connected with the annular suction chamber through a connecting pipe.

7. A cooling tower circulating water filter device according to claim 6, characterized in that: Two screw rods are axially arranged inside the cleaning cylinder, a driving motor is arranged on the top of the cleaning cylinder, and the output end of the driving motor is transmission-connected to the screw rod, a guide frame is arranged on the outer wall of each screw rod, a cleaning ring is arranged between the two guide frames, and the cleaning ring is rotatably connected to the guide frame, a thread is arranged on the outer ring surface of the cleaning ring, and the inner ring surface of the cleaning ring is cleaning material, a guide plate is arranged inside the cleaning cylinder, a spiral groove is opened on the guide plate, and the thread on the cleaning ring is meshed with the spiral groove on the guide plate.

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