Anti-blocking device for cooling tower

The trapezoidal filter plate and backwashing system solved the problem of impurity accumulation on the cooling tower filter plate, achieving efficient impurity cleaning and reducing operating costs.

CN224262340UActive Publication Date: 2026-05-19YANCHENG BAOFENG NEW ENERGY EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANCHENG BAOFENG NEW ENERGY EQUIPMENT CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing cooling tower anti-clogging devices, the accumulation of impurities on the filter plate surface affects filtration efficiency, requiring regular cleaning which consumes a lot of manpower and time, increasing operating costs.

Method used

Using a trapezoidal filter plate and a backwashing system, impurities roll into the waste storage filter box for centralized storage by water flow and gravity. The impurities are then cleaned by backwashing using a water pump and an electric push rod to drive the movable nozzle.

Benefits of technology

It enables efficient and centralized cleaning of impurities, saving time and manpower and reducing operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cooling tower anti-blocking device, which relates to the technical field of cooling tower anti-blocking, and comprises a cooling tower, the top of the cooling tower is provided with an air exhaust fan, and two sides of the cooling tower are symmetrically provided with two waste storage filter boxes; trapezoidal filter plates are arranged on the sides, close to each other, of the two waste storage filter boxes; a top spray pipe component is arranged at the top of the trapezoidal filter plate; a bottom spray pipe component is arranged at the bottom of the trapezoidal filter plate; a telescopic spray pipe is arranged at one end of the bottom spray pipe component; the other end of the telescopic spray pipe fixedly communicates with a connecting pipe; the other end of the connecting pipe fixedly communicates with a water pump; and the top of the water pump fixedly communicates with a water storage barrel. With the adoption of the structure, impurities can roll into the two waste storage filter boxes on the two sides through the trapezoidal filter plate under the action of water flow and gravity to be stored in a centralized manner, and the bottom of the trapezoidal filter plate can be backwashed through the bottom spray pipe component, so that the impurities are convenient to clean, the filter efficiency is ensured, and the time is saved.
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Description

Technical Field

[0001] This utility model relates to the field of cooling tower anti-clogging technology, specifically to a cooling tower anti-clogging device. Background Technology

[0002] A cooling tower is a device that uses heat exchange between water and air to dissipate waste heat generated during industrial production or air conditioning systems into the atmosphere. Based on the different ventilation methods, they can be divided into natural draft cooling towers and mechanical draft cooling towers. This equipment is widely used in many fields such as power, chemical, metallurgy, and refrigeration, and is a key facility for ensuring the stable operation of various equipment and improving energy efficiency.

[0003] Existing cooling tower anti-clogging devices commonly use filter plates to filter impurities in the water to prevent blockage. However, over time, a thick layer of impurities gradually accumulates on the surface of the filter plates, severely impacting filtration efficiency. To maintain their proper function, the filter plates need to be cleaned regularly, a process that is both labor-intensive and time-consuming, thus increasing operating costs. Therefore, we propose a cooling tower anti-clogging device to address the aforementioned problems. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling tower anti-clogging device to address the problem described in the background section: existing cooling tower anti-clogging devices generally use filter plates to filter impurities in the water to prevent blockage. However, with prolonged use, a thick layer of impurities gradually accumulates on the surface of the filter plate, severely affecting filtration efficiency. To maintain its normal function, the filter plate needs to be cleaned regularly, a process that is not only labor-intensive but also time-consuming, thus increasing operating costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cooling tower anti-clogging device includes a cooling tower, an exhaust fan installed at the top of the cooling tower, two waste storage filter boxes symmetrically arranged on both sides of the cooling tower, a trapezoidal filter plate installed on one side of the two waste storage filter boxes close to each other, a top spray pipe component installed at the top of the trapezoidal filter plate, a bottom spray pipe component installed at the bottom of the trapezoidal filter plate, a telescopic spray pipe installed at one end of the bottom spray pipe component, a connecting pipe fixedly connected to the other end of the telescopic spray pipe, a water pump fixedly connected to the other end of the connecting pipe, and a water storage tank fixedly connected to the top of the water pump.

[0007] The bottom nozzle component includes a movable nozzle, and multiple movable nozzles are fixedly connected at even intervals on the side of the movable nozzle near the trapezoidal filter plate. Two push rod fixing seats are fixedly connected to the outer sides of both ends of the movable nozzle, and two electric push rods are fixedly connected to one side of each of the two push rod fixing seats.

[0008] Furthermore, the cooling tower includes a tower body, a fan mounting box is fixedly connected to the top of the tower body, two distribution boxes are symmetrically fixedly connected to both sides of the tower body, a drain pipe is fixedly connected to the bottom of the tower body, two return pipes are fixedly connected to the bottom of the two distribution boxes respectively, and the other end of the two return pipes is fixedly connected to the bottom of the tower body.

[0009] Furthermore, the exhaust fan is fixedly connected to the inside of the fan mounting box, the waste storage filter box includes a box body, a waste storage filter plate is fixedly connected to the bottom of the box body, the box body is slidably connected to the diversion box, the side projection of the trapezoidal filter plate is an isosceles trapezoid, and the trapezoidal filter plate is fixedly connected to the inside of the tower body.

[0010] Furthermore, the top spray pipe component includes a fixed spray pipe, which is uniformly spaced and fixedly connected to multiple fixed nozzles on the side near the trapezoidal filter plate. One end of the fixed spray pipe passes through the tower body and is fixedly connected to the tower body.

[0011] Furthermore, one end of the movable nozzle is fixedly connected to the telescopic nozzle, and the other ends of the two electric push rods are fixedly connected to the inside of the tower body.

[0012] Furthermore, the telescopic nozzle is fixedly connected to the tower body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model uses a trapezoidal filter plate, which allows impurities in water to roll down into the two waste storage filter boxes on both sides under the action of water flow and gravity, and be stored in a centralized manner, making it easy to clean and saving time.

[0015] This invention uses a water pump to extract pure water from the storage tank and delivers it through a connecting pipe and a telescopic spray pipe into multiple movable nozzles on a movable spray pipe. Two electric push rods drive the movable spray pipe to move, which can backwash the trapezoidal filter plate from the bottom, thereby cleaning the impurities accumulated on the trapezoidal filter plate, ensuring filtration efficiency, saving time, and reducing operating costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side sectional view of the installation structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the waste storage filter box of this utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the bottom nozzle component of this utility model;

[0020] Reference numerals: 1. Cooling tower; 101. Tower body; 102. Fan mounting box; 103. Diversion box; 104. Drain pipe; 105. Return pipe; 2. Exhaust fan; 3. Waste storage filter box; 301. Box body; 302. Waste storage filter plate; 4. Trapezoidal filter plate; 5. Top spray pipe assembly; 501. Fixed spray pipe; 502. Fixed nozzle; 6. Bottom spray pipe assembly; 601. Movable spray pipe; 602. Movable nozzle; 603. Push rod fixing seat; 604. Electric push rod; 7. Telescopic spray pipe; 8. Connecting pipe; 9. Water pump; 10. Water storage tank. 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 Figures 1-4 This utility model provides a technical solution: a cooling tower anti-clogging device, including a cooling tower 1, an exhaust fan 2 installed on the top of the cooling tower 1, two waste storage filter boxes 3 symmetrically arranged on both sides of the cooling tower 1, a trapezoidal filter plate 4 installed on one side of the two waste storage filter boxes 3 close to each other, a top spray pipe component 5 installed on the top of the trapezoidal filter plate 4, a bottom spray pipe component 6 installed at the bottom of the trapezoidal filter plate 4, a telescopic spray pipe 7 installed at one end of the bottom spray pipe component 6, a connecting pipe 8 fixedly connected to the other end of the telescopic spray pipe 7, a water pump 9 fixedly connected to the other end of the connecting pipe 8, and a water storage tank 10 fixedly connected to the top of the water pump 9;

[0023] The bottom nozzle component 6 includes a movable nozzle 601. Multiple movable nozzles 602 are fixedly connected to the movable nozzle 601 at even intervals on the side near the trapezoidal filter plate 4. Two push rod fixing seats 603 are fixedly connected to the outer sides of both ends of the movable nozzle 601. Two electric push rods 604 are fixedly connected to one side of each of the two push rod fixing seats 603.

[0024] The cooling tower 1 includes a tower body 101, a fan mounting box 102 fixedly connected to the top of the tower body 101, two distribution boxes 103 symmetrically fixedly connected to both sides of the tower body 101, a drain pipe 104 fixedly connected to the bottom of the tower body 101, and two return pipes 105 fixedly connected to the bottom of each of the two distribution boxes 103, with the other end of each return pipe 105 fixedly connected to the bottom of the tower body 101. In this example, by setting up two return pipes 105, the water flowing into the two distribution boxes 103 can be returned to the tower body 101.

[0025] The exhaust fan 2 is fixedly connected to the fan mounting box 102. The waste storage filter box 3 includes a box body 301, and a waste storage filter plate 302 is fixedly connected to the bottom of the box body 301. The box body 301 is slidably connected to the diversion box 103. The trapezoidal filter plate 4 has an isosceles trapezoidal side projection and is fixedly connected to the tower body 101. In this example, by setting the trapezoidal filter plate 4, impurities can be directed to both sides by the action of water flow and gravity, making cleaning easier.

[0026] The top spray pipe component 5 includes a fixed spray pipe 501. The fixed spray pipe 501 is evenly spaced and fixedly connected to multiple fixed nozzles 502 on the side near the trapezoidal filter plate 4. One end of the fixed spray pipe 501 passes through the tower body 101 and is fixedly connected to the tower body 101.

[0027] One end of the movable nozzle 601 is fixedly connected to the telescopic nozzle 7, and the other ends of the two electric push rods 604 are fixedly connected to the inside of the tower body 101. In this example, by setting two electric push rods 604, it is easy to drive the multiple movable nozzles 602 on the movable nozzle 601 to move and clean the trapezoidal filter plate 4.

[0028] The telescopic nozzle 7 is fixedly connected to the tower body 101.

[0029] Working principle: An external pump sprays water into the tower body 101 through multiple fixed nozzles 502 on a fixed spray pipe 501. An exhaust fan 2 drives air circulation to cool the water flow. The water falls onto a trapezoidal filter plate 4, filtering out impurities. Some water passes directly through the trapezoidal filter plate 4 to the bottom of the tower body 101, while the remaining water, carrying impurities, flows through the inclined surface of the trapezoidal filter plate 4 to the two waste storage filter boxes 3 on both sides. Impurities are filtered out by the waste storage filter plates 302, and the water then flows back to the tower body 101 through the return pipe 105. At the bottom, the liquid is discharged from the tower body 101 through the drain pipe 104. When it is necessary to clean the impurities accumulated on the trapezoidal filter plate 4, the water pump 9 draws out the pure water from the water storage tank 10 and sends it into the telescopic spray pipe 7 through the connecting pipe 8, and then into the movable spray pipe 601. It is sprayed out through multiple movable nozzles 602. During this process, two electric push rods 604 drive the movable spray pipe 601 to move and backflush the bottom of the trapezoidal filter plate 4 to clean the accumulated impurities. Under the action of gravity and water flow, the impurities roll down into the two waste storage filter boxes 3 on both sides.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling tower anti-clogging device, characterized in that: The cooling tower (1) is equipped with an exhaust fan (2) on the top of the cooling tower (1). Two waste storage filter boxes (3) are symmetrically arranged on both sides of the cooling tower (1). A trapezoidal filter plate (4) is arranged on one side of the two waste storage filter boxes (3). A top spray pipe component (5) is arranged on the top of the trapezoidal filter plate (4). A bottom spray pipe component (6) is arranged at the bottom of the trapezoidal filter plate (4). A telescopic spray pipe (7) is arranged at one end of the bottom spray pipe component (6). A connecting pipe (8) is fixedly connected to the other end of the telescopic spray pipe (7). A water pump (9) is fixedly connected to the other end of the connecting pipe (8). A water storage tank (10) is fixedly connected to the top of the water pump (9). The bottom nozzle component (6) includes a movable nozzle (601). The movable nozzle (601) is evenly spaced and fixedly connected to a plurality of movable nozzles (602) on the side near the trapezoidal filter plate (4). Two push rod fixing seats (603) are fixedly connected to the outer sides of both ends of the movable nozzle (601). Two electric push rods (604) are fixedly connected to one side of each of the two push rod fixing seats (603).

2. The cooling tower anti-clogging device according to claim 1, characterized in that: The cooling tower (1) includes a tower body (101), a fan mounting box (102) is fixedly connected to the top of the tower body (101), two distribution boxes (103) are fixedly connected symmetrically on both sides of the tower body (101), a drain pipe (104) is fixedly connected to the bottom of the tower body (101), two return pipes (105) are fixedly connected to the bottom of the two distribution boxes (103), and the other end of the two return pipes (105) is fixedly connected to the bottom of the tower body (101).

3. A cooling tower anti-clogging device according to claim 2, characterized in that: The exhaust fan (2) is fixedly connected to the fan mounting box (102). The waste storage filter box (3) includes a box body (301). A waste storage filter plate (302) is fixedly connected to the bottom of the box body (301). The box body (301) is slidably connected to the diversion box (103). The side projection of the trapezoidal filter plate (4) is an isosceles trapezoid. The trapezoidal filter plate (4) is fixedly connected to the tower body (101).

4. A cooling tower anti-clogging device according to claim 2, characterized in that: The top spray pipe component (5) includes a fixed spray pipe (501). The fixed spray pipe (501) is evenly spaced and fixedly connected to multiple fixed nozzles (502) on the side near the trapezoidal filter plate (4). One end of the fixed spray pipe (501) passes through the tower body (101) and is fixedly connected to the tower body (101).

5. A cooling tower anti-clogging device according to claim 2, characterized in that: One end of the movable nozzle (601) is fixedly connected to the telescopic nozzle (7), and the other ends of the two electric push rods (604) are fixedly connected to the inside of the tower body (101).

6. A cooling tower anti-clogging device according to claim 2, characterized in that: The telescopic nozzle (7) is fixedly connected to the tower body (101).