A car washing machine circulating water pretreatment device with a cyclone grit chamber
By combining a cyclone separator and a centrifugal filter, the problem of poor filtration of small-particle mud and sand in traditional car wash machine circulating water pretreatment devices is solved, achieving efficient and rapid removal of impurities and ensuring the stable operation of the car wash machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN WANJIYUAN ENVIRONMENTAL PROTECTION EQUIP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional car wash machine circulating water pretreatment devices are not effective at filtering small-sized mud and fine particles, resulting in frequent nozzle clogging. Sedimentation tanks occupy a large area and have a long sedimentation time, which cannot meet the rapid sedimentation needs during peak hours, affecting the normal operation of the car wash machine.
The system employs a combination of a cyclone sand separator, centrifugal separation, perforated plate sedimentation, and centrifugal filter box. The cyclone sand separator quickly separates silt and sand, while the perforated plate sedimentation and centrifugal filter box further remove impurities. The system also incorporates a level sensor and a stirring plate to improve filtration efficiency.
It achieves rapid separation and multiple removal of mud and sand impurities, improves filtration rate and quality, meets the demand for large water consumption, reduces nozzle clogging and maintenance costs, and ensures the normal operation of the car wash machine.
Smart Images

Figure CN224388149U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of car wash machine circulating water treatment technology, and more specifically, to a car wash machine circulating water pretreatment device with a vortex sedimentation device. Background Technology
[0002] With increasing environmental awareness and rising water costs, the car wash industry has an increasingly urgent need for water recycling. Car wash machine water recycling systems can recycle and reuse used water, effectively reducing water waste and lowering operating costs.
[0003] Traditional car wash machine circulating water pretreatment methods rely on simple filtration devices and screens to intercept impurities. These methods are ineffective at filtering small particles like mud and fine grains, which easily pass through the screens and enter the circulating water system. Over time, this accumulation can clog the car wash nozzles, affecting washing performance and increasing nozzle replacement frequency and maintenance costs. Some methods use sedimentation tanks to settle impurities, but these are time-consuming, require a large area, and are only effective at removing low-density, difficult-to-settle impurities. During peak car wash operations, water consumption is high, and traditional sedimentation tanks cannot meet the rapid sedimentation requirements, resulting in a large amount of insufficiently settled water entering the circulating system, severely impacting the normal operation of the car wash machine. Therefore, a car wash machine circulating water pretreatment device with a vortex sand separator is proposed. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a car wash machine circulating water pretreatment device with a vortex sand separator to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment device for circulating water in a car wash machine with a cyclone separator, comprising a support plate, a cyclone separator and a water tank on the top of the support plate. The cyclone separator can use centrifugal force to quickly separate impurities, significantly shortening the sedimentation time. Denser impurities such as mud and sand are thrown against the inner wall of the cyclone separator and slide downwards along it. Relatively clean water after cyclone separation flows upwards from the center of the cyclone separator. A partition plate is fixedly connected to the middle of the water tank, and a perforated plate is fixedly connected to one side of the partition plate. The perforated plate allows sedimentation of the liquid entering the cavity of the perforated plate. A liquid pump and a centrifugal filter box are fixedly connected to the top of the water tank. A perforated cylinder is fixedly connected to the top of the inner cavity of the centrifugal filter box. Starting the liquid pump allows the liquid in the cavity of the perforated plate to be input into the middle of the perforated cylinder inside the centrifugal filter box.
[0006] A filter element is provided in the middle of the porous cylinder, and a fixing plate is fixedly connected to the top of the filter element. Threaded rods are symmetrically fixedly connected to the top of the centrifugal filter box. A cover plate is provided on the top of the centrifugal filter box, and mounting holes are provided around the cover plate. The cover plate can be easily installed and fixed on the centrifugal filter box by the cooperation of the threaded rods and the mounting holes. It is easy to disassemble and use, and the liquid entering the porous cylinder can be filtered through the filter element.
[0007] A liquid level sensor is installed at the bottom of the cover plate, and a motor is fixedly connected to the top of the cover plate. A rotating rod is connected to the output end of the motor, and multiple stirring plates are fixedly connected to the middle of the rotating rod. The liquid level sensor can monitor the liquid level inside the porous cylinder in real time, which facilitates timely cleaning or stopping of liquid input. By starting the motor, the rotating rod is controlled to drive the stirring plates to rotate, which can rotate the liquid and improve the centrifugal filtration effect.
[0008] Preferably, the bottom of the cyclone sand separator is provided with a sand discharge pipe, and the top of the cyclone sand separator is connected to a liquid outlet pipe. One end of the liquid outlet pipe is connected to the cavity where the perforated plate is located in the water tank. A liquid inlet pipe is fixedly connected to one side of the cyclone sand separator. Sand and soil are conveniently discharged through the sand discharge pipe, and the separated liquid is conveniently input into the interior of the water tank through the liquid outlet pipe. The liquid settles through the perforated plate and is conveniently input into the interior of the cyclone sand separator through the liquid inlet pipe.
[0009] Preferably, the input end of the liquid pump is connected to the cavity where the perforated plate is located, and the output end of the liquid pump is connected to the inner cavity of the perforated cylinder through a pipe passing through the cover plate. Starting the liquid pump can extract the top liquid after sedimentation in the cavity where the perforated plate is located and input it into the interior of the perforated cylinder.
[0010] Preferably, the threaded rod passes through the mounting hole on the surface of the cover plate and is fitted with a nut. The fixing plate is set on the top of the centrifugal filter box. The cooperation between the threaded rod and the nut and the mounting hole facilitates the installation and fixing of the cover plate.
[0011] Preferably, the wall of the filter element is fitted to the inner wall of the porous cylinder, and the filter element is made of polyester material. The filter element can filter the liquid entering the porous cylinder, thereby improving the treatment effect.
[0012] Preferably, the liquid level sensor is located directly above the inner cavity of the porous cylinder, and the bottom of the centrifugal filter box is connected to the cavity on the side of the partition plate away from the porous plate through a pipe. The rotating rod and the stirring plate are both located in the middle of the porous cylinder. The liquid level sensor can detect the liquid level in the cavity where the porous cylinder is located, so as to avoid excessive liquid affecting the centrifugal filtration effect. The rotating rod and the stirring plate can rotate and stir to improve the centrifugal efficiency.
[0013] The technical effects and advantages of this utility model are as follows:
[0014] 1. This utility model firstly uses a cyclone separator to centrifuge and separate silt and particles in wastewater, improving the removal effect. Then, the liquid is fed into the interior of a porous plate for sedimentation to further remove some particulate impurities. Next, the liquid is pumped into the interior of the porous cylinder for fine filtration through the filter element. The motor controls the rotating rod and stirring plate to increase the centrifugal intensity, thereby improving the filtration rate and filtration effect. This effectively removes fine silt and impurities, improving removal quality and efficiency. It can meet the needs of large water consumption and will not affect the normal operation of the car wash machine.
[0015] 2. This utility model also features a perforated plate that stabilizes the flow of the incoming liquid at the bottom, improving the stability of impurities settled at the bottom and enhancing the sedimentation effect. A liquid level sensor detects the liquid level height and rate of descent inside the perforated cylinder, facilitating the assessment of filter element blockage and enabling timely cleaning. A threaded rod passes through the mounting hole and a nut is fitted to facilitate the installation and removal of the cover plate, thereby simplifying filter element removal, replacement, and cleaning, improving performance. The partition plate, located in the cavity away from the perforated plate, stores the filtered liquid, further enhancing its effectiveness.
[0016] In summary, through the interaction of the above-mentioned multiple functions, multiple removals of mud and sand impurities can be achieved, improving the removal quality and efficiency. This can meet the needs of large water consumption without affecting the normal operation of the car wash machine, while also facilitating the disassembly, replacement, and cleaning of the filter element. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model.
[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0020] Figure 4 This is a schematic diagram showing the disassembled structure of the centrifugal filter box, filter element, and cover plate of this utility model.
[0021] The attached diagram is labeled as follows: 1. Support plate; 2. Cyclone grit chamber; 3. Water tank; 4. Inlet pipe; 5. Outlet pipe; 6. Divider plate; 7. Perforated plate; 8. Liquid pump; 9. Centrifugal filter box; 10. Perforated cylinder; 11. Filter element; 12. Fixing plate; 13. Threaded rod; 14. Nut; 15. Cover plate; 16. Mounting hole; 17. Liquid level sensor; 18. Rotating rod; 19. Motor; 20. Stirring plate. 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] As attached Figure 1-4 The device shown is a pretreatment device for circulating water of a car wash machine with a cyclone separator. It includes a support plate 1, a cyclone separator 2 and a water tank 3 on the top of the support plate 1. The cyclone separator 2 can use centrifugal force to quickly separate impurities, greatly shortening the sedimentation time. The denser impurities such as mud and sand are thrown to the inner wall of the cyclone separator and slide down the inner wall. The relatively clean water after cyclone separation flows upward from the center of the cyclone separator. A partition plate 6 is fixedly connected to the middle of the water tank 3. A perforated plate 7 is fixedly connected to one side of the partition plate 6. The liquid entering the cavity of the perforated plate 7 can be precipitated through the perforated plate 7. A liquid pump 8 and a centrifugal filter box 9 are fixedly connected to the top of the water tank 3. A perforated cylinder 10 is fixedly connected to the top of the inner cavity of the centrifugal filter box 9. When the liquid pump 8 is started, the liquid in the cavity of the perforated plate 7 can be input into the middle of the perforated cylinder 10 inside the centrifugal filter box 9.
[0024] A filter element 11 is provided in the middle of the porous cylinder 10. A fixing plate 12 is fixedly connected to the top of the filter element 11. Threaded rods 13 are symmetrically fixedly connected to the top of the centrifugal filter box 9. A cover plate 15 is provided on the top of the centrifugal filter box 9. Mounting holes 16 are provided around the cover plate 15. The cover plate 15 can be easily installed and fixed on the centrifugal filter box 9 by the cooperation of the threaded rods 13 and the mounting holes 16. It is easy to disassemble and use, and the liquid entering the porous cylinder 10 can be filtered through the filter element 11.
[0025] A liquid level sensor 17 is installed at the bottom of the cover plate 15, and a motor 19 is fixedly connected to the top of the cover plate 15. A rotating rod 18 is connected to the output end of the motor 19, and multiple stirring plates 20 are fixedly connected to the middle of the rotating rod 18. The liquid level sensor 17 can monitor the liquid level inside the porous cylinder 10 in real time, which is convenient for timely cleaning or stopping the input of liquid. By starting the motor 19, the rotating rod 18 is controlled to drive the stirring plates 20 to rotate, which can rotate the liquid and improve the centrifugal filtration effect.
[0026] As attached Figure 1-4As shown, a sand discharge pipe is provided at the bottom of the cyclone sand separator 2, and a liquid outlet pipe 5 is connected to the top of the cyclone sand separator 2. One end of the liquid outlet pipe 5 is connected to the cavity where the perforated plate 7 is located in the inner cavity of the water tank 3. A liquid inlet pipe 4 is fixedly connected to one side of the cyclone sand separator 2. The input end of the liquid pump 8 is connected to the cavity where the perforated plate 7 is located. The output end of the liquid pump 8 is connected to the inner cavity of the perforated cylinder 10 through a pipe passing through the cover plate 15. A threaded rod 13 passes through the mounting hole 16 on the surface of the cover plate 15 and is fitted with a nut 14. A fixing plate 12 is set on the top of the centrifugal filter box 9. The wall of the filter element 11 is in contact with the inner wall of the perforated cylinder 10. The filter element 11 is made of polyester material. The liquid level sensor 17 is located directly above the inner cavity of the perforated cylinder 10. The bottom of the centrifugal filter box 9 is connected to the cavity on the side of the partition plate 6 away from the perforated plate 7 through a pipe. The rotating rod 18 and the stirring plate 20 are both located in the middle of the porous cylinder 10. Sand and soil can be easily discharged through the sand discharge pipe, and the separated liquid can be easily fed into the water tank 3 through the liquid outlet pipe 5. The liquid settles through the porous plate 7, and the liquid can be easily fed into the cyclone sand settling tank 2 through the liquid inlet pipe 4. The liquid pump 8 can be started to extract the top liquid after sedimentation in the cavity where the porous plate 7 is located and feed it into the porous cylinder 10. The cover plate 15 can be easily installed and fixed by the cooperation of the threaded rod 13 and the nut 14 with the mounting hole 16. The liquid entering the porous cylinder 10 can be filtered through the filter element 11 to improve the treatment effect. The liquid level sensor 17 can detect the liquid level in the cavity where the porous cylinder 10 is located to avoid excessive liquid affecting the centrifugal filtration effect. The rotating rod 18 and the stirring plate 20 rotate and stir to improve the centrifugal efficiency.
[0027] It is worth noting that a controller is provided on one side of the support plate 1. The controller is electrically connected to the liquid pump 8, the motor 19, and the liquid level sensor 17, which facilitates control and detection. This is existing technology.
[0028] The working principle of this utility model is as follows: When in use, wastewater is fed into the interior of the cyclone separator 2 through the liquid inlet pipe 4. The cyclone separator 2 uses centrifugal force to quickly separate impurities, causing the sand and gravel to move downwards. The liquid is fed into the cavity where the perforated plate 7 is located through the liquid outlet pipe 5 for sedimentation, further removing impurities.
[0029] Then, start the liquid pump 8 to input the liquid inside the porous plate 7 into the cavity where the porous cylinder 10 is located. Start the motor 19 to control the rotating rod 18 to drive the stirring plate 20 to rotate and centrifuge the liquid inside the porous cylinder 10. The liquid passes through the filter element 11, passes through the porous cylinder 10 and falls onto the wall of the centrifugal filter box 9. Then it falls into the cavity on the side of the partition plate 6 away from the porous plate 7 for storage, making it easy to extract and recycle.
[0030] When the liquid level sensor 17 detects that the liquid has reached the preset maximum value, it stops rotating the rod 18 to deliver liquid. When the liquid level sensor 17 detects that the liquid drop rate is too slow, it can remind the staff to clean and replace the filter element 11 through the controller.
[0031] When cleaning or replacing the filter element 11, separate the output pipe of the liquid pump 8 from the cover plate 15, then turn the nut 14 and remove the cover plate 15 from the top of the centrifugal filter box 9. The filter element 11 can then be removed for cleaning or replacement, making it convenient to use.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A car washer circulating water pretreatment device with a rotating flow grit chamber, comprising a support plate (1), characterized in that: The top of the support plate (1) is provided with a cyclone sand separator (2) and a water tank (3). A partition plate (6) is fixedly connected to the middle of the water tank (3). A perforated plate (7) is fixedly connected to one side of the partition plate (6). A liquid pump (8) and a centrifugal filter box (9) are fixedly connected to the top of the water tank (3). A perforated cylinder (10) is fixedly connected to the top of the inner cavity of the centrifugal filter box (9). A filter element (11) is provided in the middle of the porous cylinder (10), and a fixing plate (12) is fixedly connected to the top of the filter element (11). Threaded rods (13) are symmetrically fixedly connected around the top of the centrifugal filter box (9). A cover plate (15) is provided on the top of the centrifugal filter box (9), and mounting holes (16) are provided around the cover plate (15). A liquid level sensor (17) is provided at the bottom of the cover plate (15), and a motor (19) is fixedly connected to the top of the cover plate (15). A rotating rod (18) is connected to the output end of the motor (19), and multiple stirring plates (20) are fixedly connected to the middle of the rotating rod (18).
2. The circulating water pretreatment device of a car washer with a rotating flow grit chamber according to claim 1, characterized in that: The bottom of the cyclone sand separator (2) is provided with a sand discharge pipe, and the top of the cyclone sand separator (2) is connected with a liquid outlet pipe (5). One end of the liquid outlet pipe (5) is connected to the cavity of the perforated plate (7) inside the water tank (3). A liquid inlet pipe (4) is fixedly connected to one side of the cyclone sand separator (2).
3. The car washing machine circulating water pretreatment device with a rotating flow grit chamber according to claim 1, characterized in that: The input end of the liquid pump (8) is connected to the cavity where the perforated plate (7) is located, and the output end of the liquid pump (8) is connected to the inner cavity of the perforated cylinder (10) through the cover plate (15) via a pipe.
4. The car washing machine circulating water pretreatment device with a rotating flow grit chamber according to claim 1, characterized in that: The threaded rod (13) passes through the mounting hole (16) on the surface of the cover plate (15) and is fitted with a nut (14). The fixing plate (12) is set on the top of the centrifugal filter box (9).
5. The car washing machine circulating water pretreatment device with a rotating flow grit chamber according to claim 1, characterized in that: The wall of the filter element (11) is in contact with the inner wall of the porous cylinder (10), and the filter element (11) is made of polyester.
6. The car washing machine circulating water pretreatment device with a rotating flow grit chamber according to claim 1, characterized in that: The liquid level sensor (17) is located directly above the inner cavity of the porous cylinder (10). The bottom of the centrifugal filter box (9) is connected to the cavity on the side of the partition plate (6) away from the porous plate (7) through a pipe. The rotating rod (18) and the stirring plate (20) are both located in the middle of the porous cylinder (10).