Cooling tower blowdown device
By designing a scraping mechanism for the cooling tower's wastewater discharge device, a motor drives a lead screw to rotate, causing the sliding seat and push plate to slide. The brushes scrape away impurities from the filter screen, solving the problem of accumulated impurities on the filter screen affecting cooling efficiency and achieving a highly efficient cooling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-03
AI Technical Summary
During use, impurities easily accumulate on the filter screen of the water collection tank in existing cooling towers, affecting the cooling effect and reducing the efficiency of cooling operations.
A cooling tower sewage discharge device was designed, including a scraping mechanism. It utilizes a combination of a lead screw, sliding seat, sliding column, push plate, spring and bristles. The lead screw is driven to rotate by a motor, which drives the sliding seat and push plate to slide, so that the bristles can fit against the filter screen and scrape off impurities, thus achieving automatic cleaning.
It effectively cleans impurities from the filter screen, preventing the filtration effect from being affected and improving the efficiency of cooling operations.
Smart Images

Figure CN224080831U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cooling tower technology, specifically to a cooling tower sewage discharge device. Background Technology
[0002] In production and daily life, many production processes generate a lot of heat. To prevent equipment from being damaged by overheating, this heat needs to be carried away by cooling water. Cooling towers can cool this hot water containing heat so that it can be reused in the production process or other processes. A cooling tower is a device that cools water by lowering its temperature through heat exchange.
[0003] When existing cooling towers are in use, water that needs to be cooled is sprayed out through spray pipes. The water and the coolant in the cooling pipes exchange heat through the cooling pipes. The cooled water falls into the water collection tank to wait for collection.
[0004] Existing cooling towers have the following problems: During use, impurities easily accumulate on the filter screen of the water collection tank, affecting the filtration effect of the cooled water and reducing the efficiency of the cooling operation. To address this, we propose a cooling tower drainage device. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cooling tower sewage discharge device. During the use of the cooling tower, the scraping mechanism cleans the impurities accumulated on the filter screen, avoiding the impact on the filtration effect and improving the efficiency of the cooling work. This can effectively solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling tower sewage discharge device, comprising a cooling tank and a scraping mechanism;
[0007] The scraping mechanism includes a lead screw, a sliding seat, a sliding groove, a sliding column, a limiting block, a push plate, a spring, and brush bristles. The lead screw is rotatably connected to the front of the cooling tank, and the sliding seat is threaded onto the outer surface of the lead screw. A sliding groove is formed on the rear side wall of the cooling tank. The rear end of the sliding seat protrudes and slidably connects to the inside of the sliding groove. Sliding columns are slidably connected to the sliding openings on both sides of the upper surface of the sliding seat. Limit blocks are fixedly connected to the upper ends of the sliding columns. The lower ends of the two sliding columns are fixedly connected to the upper surface of a push plate. Springs are movably fitted onto the outer surface of each sliding column, located between the upper surface of the push plate and the lower surface of the sliding seat. Evenly distributed brush bristles are provided on the lower surface of the push plate. During use, the scraping mechanism cleans the impurities accumulated on the filter screen, preventing the filtration effect from being affected and improving the efficiency of the cooling operation.
[0008] Furthermore, it also includes a microcontroller, which is fixedly connected to the front side of the cooling box. The input terminal of the microcontroller is electrically connected to an external power supply to facilitate the normal operation of the equipment.
[0009] Furthermore, a motor is provided on the right side of the cooling box. The left end of the motor's output shaft is fixedly connected to the right end of the lead screw, and the input end of the motor is electrically connected to the output end of the microcontroller to provide driving force.
[0010] Furthermore, the cooling box has a water collection tank inside, and a filter plate is installed in the mounting hole on the upper surface of the water collection tank. The filter plate is located below the bristles to facilitate the filtration of the cooled water.
[0011] Furthermore, a water pump is installed at the outlet on the front side of the cooling box. The pump inlet of the water pump is connected to the water collection tank, and a drain pipe is installed at the pump outlet. The input end of the water pump is electrically connected to the output end of the microcontroller to facilitate the collection of cooled water.
[0012] Furthermore, the cooling tank is equipped with cooling pipes inside, which are distributed in an S-shape. The inlet and outlet of the cooling pipes both penetrate the front side wall of the cooling tank, facilitating heat exchange between the coolant and water.
[0013] Furthermore, the cooling box is equipped with a spray pipe inside, which is located above the cooling pipe. The water inlet of the spray pipe penetrates the right side wall of the cooling box, and the lower side of the outer surface of the spray pipe is equipped with evenly distributed nozzles to facilitate the spraying of water that needs to be cooled.
[0014] Furthermore, a waste bin is slidably connected to the lower right side of the cooling box, and a handle is fixedly connected to the right side of the waste bin for easy collection of impurities.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This cooling tower sewage discharge device has the following advantages:
[0016] During operation, the cooling tower rotates, causing the sliding seat to slide along the slide groove. This causes the sliding column to move the push plate along with it. Under the action of the spring's rebound force, the bristles always stay in contact with the filter screen. The push plate moves the bristles to scrape off the impurities on the filter screen, cleaning the accumulated impurities and preventing the filtration effect from being affected, thus improving the efficiency of the cooling operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is an enlarged structural diagram of point A of this utility model.
[0020] In the diagram: 1 Cooling box, 2 Microcontroller, 3 Scraping mechanism, 31 Lead screw, 32 Sliding seat, 33 Slide groove, 34 Sliding column, 35 Limit block, 36 Push plate, 37 Spring, 38 Brush bristles, 4 Motor, 5 Water collection tank, 6 Filter plate, 7 Water pump, 8 Drain pipe, 9 Cooling pipe, 10 Spray pipe, 11 Spray head, 12 Waste bin, 13 Handle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-3 This embodiment provides a technical solution: a cooling tower sewage discharge device, including a cooling tank 1 and a scraping mechanism 3, and a microcontroller 2. The microcontroller 2 is fixedly connected to the front side of the cooling tank 1, and its input terminal is electrically connected to an external power source. A water collection tank 5 is provided inside the cooling tank 1. A filter plate 6 is provided in the mounting hole on the upper surface of the water collection tank 5, and the filter plate 6 is located below the brush bristles 38. A water pump 7 is provided at the water outlet on the front side of the cooling tank 1. The pump inlet of the water pump 7 is connected to the water collection tank 5, and a drain pipe 8 is provided at the pump outlet of the water pump 7. The input terminal of the water pump 7 is electrically connected to the output terminal of the microcontroller 2. Cooling pipes 9 are provided inside the cooling tank 1. The cooling pipes 9 are distributed in an S-shape. The liquid inlet and outlet of the cooling pipes 9 both penetrate the front side wall of the cooling tank 1. A spray pipe 10 is provided inside the cooling tank 1, and the spray pipe 10 is located below the cooling pipes 9. Above, the inlet of the spray pipe 10 penetrates the right side wall of the cooling box 1. The lower side of the outer surface of the spray pipe 10 is provided with evenly distributed nozzles 11. The lower end of the right side of the cooling box 1 is slidably connected to the waste box 12. The right side of the waste box 12 is fixedly connected to the handle 13. The operator sprays the water that needs to be cooled into the cooling box 1 through the nozzles 11 on the spray pipe 10. At the same time, coolant is injected into the cooling pipe 9. The water that needs to be cooled exchanges heat with the coolant in the cooling pipe 9 during the falling process, so that the water temperature is reduced. The cooled water falls into the water collection tank 5 through the filter screen 6. The operator can then operate the microcontroller 2 to turn on the water pump 7. The water pump 7 discharges the cooled water in the water collection tank 5 through the drain pipe 8 and collects it in the cooling box 1. Impurities are discharged into the waste box 12 through the drain outlet on the right side of the cooling box.
[0023] Scraping mechanism 3: It includes a lead screw 31, a sliding seat 32, a slide groove 33, a sliding column 34, a limiting block 35, a push plate 36, a spring 37, and brush bristles 38. The lead screw 31 is rotatably connected to the interior of the cooling box 1. The sliding seat 32 is threadedly connected to the outer surface of the lead screw 31. A slide groove 33 is opened on the rear side wall of the cooling box 1. The rear end of the sliding seat 32 is slidably connected to the interior of the slide groove 33. Sliding columns 34 are slidably connected to the sliding openings on both the left and right sides of the upper surface of the sliding seat 32. The upper ends of the sliding columns 34 are fixedly connected to the upper ends of the two sliding columns 34. The lower ends of the two sliding columns 34 are fixedly connected to the upper surface of a push plate 36. Springs 37 are movably sleeved on the outer surface of the sliding columns 34. The springs 37 are slidably sleeved to the upper end of the push plate 36. Between the upper surface of the push plate 36 and the lower surface of the sliding seat 32, the lower surface of the push plate 36 is provided with evenly distributed bristles 38. The right side of the cooling box 1 is provided with a motor 4. The left end of the output shaft of the motor 4 is fixedly connected to the right end of the lead screw 31. The input end of the motor 4 is electrically connected to the output end of the microcontroller 2. When it is necessary to clean the impurities on the filter screen 6, the motor 4 is turned on. The output shaft of the motor 4 drives the lead screw 31 to rotate. The rotation of the lead screw 31 drives the sliding seat 32 to slide along the slide groove 33, causing the slide column 34 to drive the push plate 36 to slide along with it. Under the action of the spring 37, the bristles 38 are always in contact with the filter screen 6. The push plate 36 drives the bristles 38 to scrape off the impurities on the filter screen 6.
[0024] The working principle of the cooling tower sewage discharge device provided by this utility model is as follows: The operator sprays the water that needs to be cooled into the cooling tank 1 through the nozzle 11 on the spray pipe 10. At the same time, coolant is injected into the cooling pipe 9. During the falling process, the water that needs to be cooled exchanges heat with the coolant in the cooling pipe 9, which lowers the temperature of the water. The cooled water falls into the water collection tank 5 through the filter screen 6. The operator can then operate the microcontroller 2 to turn on the water pump 7. The water pump 7 discharges the cooled water in the water collection tank 5 into the cooling tank 1 through the drain pipe 8. When it is necessary to clean the impurities on the filter screen 6, the motor 4 is turned on. The output shaft of the motor 4 drives the lead screw 31 to rotate. The rotation of the lead screw 31 drives the sliding seat 32 to slide along the slide groove 33, causing the slide column 34 to drive the push plate 36 to slide. Under the action of the spring 37, the brush bristles 38 are always in contact with the filter screen 6. The push plate 36 drives the brush bristles 38 to scrape off the impurities on the filter screen 6. The impurities are discharged into the waste bin 12 through the sewage outlet on the right side of the cooling tank.
[0025] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be an EFR32MG21, the motor 4 can be a 5IK200A-AF, and the water pump 7 can be an ABK semi-open stainless steel centrifugal pump. The microcontroller 2 controls the operation of the motor 4 and the water pump 7 using methods commonly used in the prior art.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A cooling tower blowdown apparatus, characterized by: The cooling box (1) and the scraping mechanism (3) are included. The scraping mechanism (3) comprises a lead screw (31), a sliding seat (32), a sliding groove (33), a sliding column (34), a limiting block (35), a push plate (36), a spring (37) and a brush (38), the inside of the cooling box (1) is provided with the lead screw (31) which is connected in a rotating mode, the outer surface of the lead screw (31) is provided with the sliding seat (32) which is connected in a threaded mode, the rear side wall of the cooling box (1) is provided with the sliding groove (33), the rear end of the sliding seat (32) is connected to the inside of the sliding groove (33) in a sliding mode, the upper surface of the sliding seat (32) is provided with the sliding column (34) which is connected in a sliding mode on the left and right sides, the upper end of the sliding column (34) is fixedly connected with the limiting block (35), the lower end of the two sliding columns (34) is fixedly connected with the upper surface of the push plate (36), the outer surface of the sliding column (34) is movably provided with the spring (37), the spring (37) is located between the upper surface of the push plate (36) and the lower surface of the sliding seat (32), and the lower surface of the push plate (36) is provided with the brush (38) which is uniformly distributed.
2. A cooling tower blowdown device according to claim 1, wherein: The single-chip microcomputer (2) is fixedly connected to the front side of the cooling box (1), and the input end of the single-chip microcomputer (2) is electrically connected with the external power supply.
3. A cooling tower blowdown apparatus according to claim 2, wherein: The right side of the cooling box (1) is provided with the motor (4), the left end of the output shaft of the motor (4) is fixedly connected with the right end of the lead screw (31), and the input end of the motor (4) is electrically connected with the output end of the single-chip microcomputer (2).
4. A cooling tower blowdown apparatus as claimed in claim 2, wherein: The inside of the cooling box (1) is provided with the water collecting groove (5), the mounting hole in the upper surface of the water collecting groove (5) is provided with the filter plate (6), and the filter plate (6) is located below the brush (38).
5. A cooling tower blowdown apparatus according to claim 4, wherein: The water outlet of the front side of the cooling box (1) is provided with the water pump (7), the pump inlet of the water pump (7) is in communication with the water collecting groove (5), the pump outlet of the water pump (7) is provided with the drain pipe (8), and the input end of the water pump (7) is electrically connected with the output end of the single-chip microcomputer (2).
6. A cooling tower blowdown apparatus as claimed in claim 1, wherein: The inside of the cooling box (1) is provided with the cooling pipeline (9), the cooling pipeline (9) is distributed in an S shape, and the liquid inlet and the liquid outlet of the cooling pipeline (9) penetrate through the front side wall of the cooling box (1).
7. A cooling tower blowdown apparatus as claimed in claim 6, wherein: The inside of the cooling box (1) is provided with the spray exhaust pipe (10), the spray exhaust pipe (10) is located above the cooling pipeline (9), the water inlet of the spray exhaust pipe (10) penetrates through the right side wall of the cooling box (1), and the outer surface of the spray exhaust pipe (10) is provided with the spray head (11) which is uniformly distributed on the lower side.
8. A cooling tower blowdown apparatus as claimed in claim 1, wherein: The right side of the cooling box (1) is provided with the waste box (12), and the right side of the waste box (12) is fixedly connected with the handle (13).