Air volume adjusting mechanism with sand and soil accumulation prevention function for cooler

By designing an airflow regulating mechanism for the cooler to prevent sand accumulation, and utilizing the modular design of air-regulating louvers and sand-proof nets, the problem of reduced heat exchange efficiency of the insulated cooler caused by sand accumulation in arid regions has been solved, achieving efficient, clean, and water-saving cooler operation.

CN224151512UActive Publication Date: 2026-04-21AIZE ENVIRONMENTAL TECHNOLOGY (LANGFANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AIZE ENVIRONMENTAL TECHNOLOGY (LANGFANG) CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In photovoltaic and wind power plants and thermal power plants in arid regions, the heat exchange efficiency of adiabatic coolers is easily reduced due to the accumulation of sand and soil. Conventional cleaning methods are water-intensive and not environmentally friendly, and protective nets have limited effectiveness.

Method used

Design an airflow regulating mechanism for a cooler that prevents sand accumulation, including airflow louvers and a sand-proof net. Through a detachable modular design, the angle of the opening and closing louvers and the sand-proof net can be adjusted. Combined with airflow control and automatic cleaning functions, it can slow down sand accumulation and keep the cooler clean.

Benefits of technology

It effectively slows down sand accumulation, improves the heat exchange efficiency of the cooler, reduces water consumption, achieves automatic cleaning function, and meets the environmental protection needs of arid areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air volume adjusting mechanism for a cooler capable of preventing sand and soil from accumulating, which is detachably arranged on a heat insulation cooler and comprises an air adjusting shutter and a sand-proof net, and the sand-proof net is arranged on the outer side of the air adjusting shutter. The air adjusting shutter comprises a frame, opening and closing blades, a linkage rod and an adjusting device, the opening and closing blades are movably arranged in the frame, the linkage rod is movably connected with the opening and closing blades arranged at intervals, and the adjusting device is arranged in the frame and connected with the linkage rod. The device can be opened and closed in an adjustable mode and closed when wind exists to reduce the amount of sandy soil entering the device, the stacking speed of the sandy soil is reduced, meanwhile, the air inlet amount is adjusted and controlled by adjusting the opening and closing angle, air flows in different directions and at different speeds are used for blowing air to the cooler, the sandy soil on the surface of the cooler is cleaned, and a certain cleaning effect is achieved. The effects of wind and sand prevention and auxiliary cleaning are achieved; and meanwhile, the humidity of the cooler can be regulated and controlled through air quantity control in cooperation with clean water in the cooler.
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Description

Technical Field

[0001] This utility model relates to the field of windproof and sandproof louver technology, specifically to an airflow regulating mechanism for a cooler that prevents sand accumulation. Background Technology

[0002] With the gradual development of solar thermal and wind energy, their proportion in total power generation is increasing. Due to the abundant solar thermal and wind energy resources in arid regions, photovoltaic and wind power plants are also gradually expanding into these areas. After the power plant is built, adiabatic coolers are needed to cool the converter station. Since the adiabatic cooler needs to exchange heat with the air, maintaining good contact between the cooler and the air is crucial to improve heat exchange efficiency. However, arid regions, due to low rainfall and strong winds, are prone to sand accumulation, leading to reduced heat exchange efficiency. Furthermore, the external environment of thermal power plants is also harsh, making their adiabatic coolers susceptible to sand accumulation as well. The conventional approach is to maintain cleanliness by washing with water. However, due to extreme water scarcity in arid and hot regions, excessive water use would further exacerbate local water shortages. Furthermore, with the increasing emphasis on environmental protection, water-wasting operating models are no longer feasible. Therefore, the method of using large amounts of water for washing has been gradually abandoned, replaced by the use of protective nets to reduce sand and soil ingress. This protects the equipment and slows down sand accumulation to some extent. However, the effectiveness of protective nets is limited, especially in slowing down sand accumulation, still requiring large amounts of water and frequent washing. This invention provides a cooler airflow regulating mechanism with anti-sand accumulation features to solve the above problems. Utility Model Content

[0003] This utility model provides a cooling air volume regulating mechanism with anti-sand accumulation function, which enables the opening and closing blades to open and close and open at different angles, thereby reducing the sand accumulation speed and controlling the air intake volume.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0005] A cooling airflow regulating mechanism for preventing sand accumulation is detachably mounted on an insulated cooling system. It includes airflow regulating louvers and a sand-proof net, with the sand-proof net positioned on the outer side of the airflow regulating louvers. The airflow regulating louvers include a frame, opening and closing blades, a linkage rod, and an adjusting device. The opening and closing blades are movably mounted within the frame, the linkage rod is movably connected to the spaced-apart opening and closing blades, and the adjusting device is mounted within the frame and connected to the linkage rod.

[0006] The adjustment device includes a handle and a pull rod. The inner end of the handle is movably mounted on the frame. The upper end of the pull rod is movably connected to the linkage rod, and the lower end is movably connected to the handle.

[0007] Furthermore, the adjustment device also includes an angle fixing plate, which is disposed in the frame. Angle positioning holes are provided on the angle fixing plate at intervals. The handle is connected to the angle fixing plate and is located in the angle positioning holes.

[0008] Furthermore, the opening and closing blade includes a blade and a movable arm. The movable arm is fixedly disposed on the rear side of the blade, the front end of the movable arm is movably disposed on the frame, and the rear end is movably connected to the linkage rod.

[0009] Furthermore, the opening angle of the opening and closing blades is 0-105°.

[0010] Furthermore, the sand-proof nets are arranged in groups and split open on the frame. The inner sides of the sand-proof nets are connected to each other by buckles, and the outer sides are connected to the frame by hinges.

[0011] Furthermore, the sand-proof netting includes an outer frame and a protective netting, with the protective netting being stacked in two overlapping layers.

[0012] Furthermore, the opening and closing angle of the sand-proof net is 0-90°.

[0013] Furthermore, the adjustment device includes a handle, a pull rod, and a motor, with the output end of the motor disposed on the handle.

[0014] Furthermore, an anti-clogging sensor is also provided, which is set in pairs, one inside the air-regulating louver and the other outside the sand-proof net.

[0015] The beneficial effects of this utility model are as follows:

[0016] The adjustable structure can be opened and closed, and closed when there is wind to reduce the amount of sand entering, thereby slowing down the accumulation rate of sand. At the same time, the air intake can be controlled by adjusting the opening and closing angle, and airflows of different directions and speeds can be blown onto the cooler to clean the sand on its surface, which also plays a certain cleaning role, and has the effect of preventing wind and sand and assisting in cleaning. In addition, the humidity of the cooler can also be controlled by controlling the air volume in conjunction with the clean water in the cooler. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear view schematic diagram of the overall structure of this utility model;

[0019] Figure 3 This is a top view of the overall structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sand-proof net of this utility model in its open and closed state;

[0021] Figure 5 This is a schematic diagram of the closed state of the air-regulating louvers of this utility model;

[0022] Figure 6 This is a schematic diagram of the air-adjusting louvers of this utility model in the open state.

[0023] Figure 7 This is a schematic diagram of the opening and closing blade structure of this utility model.

[0024] Reference numerals: 1. Air louver; 11. Opening / closing blade; 111. Blade; 112. Movable arm; 12. Linkage rod; 13. Handle; 14. Pull rod; 15. Angle fixing plate; 151. Angle positioning hole; 2. Sandproof net. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1 , 2As shown in Figure 3, a cooling airflow regulating mechanism for preventing sand accumulation adopts an integrally detachable modular design. It is detachably mounted on the insulated cooler, located on both sides of the insulated cooler, on the air intake side. The airflow regulating mechanism includes air-adjusting louvers 1 and a sand-proof net 2. The sand-proof net 2 is located on the outside of the air-adjusting louvers 1, serving as a protective and filtering function. The air-adjusting louvers 1 include a frame, opening and closing blades 11, a linkage rod 12, and an adjusting device. The opening and closing blades 11 are spaced apart in the frame, and when closed, the first and last ends of adjacent opening and closing blades 11 are connected to form a closed plane. The opening and closing blades 11 are movably mounted in the frame. The linkage rod 12 is movably connected to the spaced-apart opening and closing blades 11. The adjusting device is mounted in the frame and movably connected to the linkage rod 12. The adjusting device includes a handle 13 and a pull rod 14. The inner end of the handle 13 is movably mounted on the frame. The upper end of the pull rod 14 is movably connected to the linkage rod 12, and the lower end is movably connected to the middle of the handle 13.

[0028] like Figure 5 , 6 As shown in Figure 7, the principle of wind adjustment of this utility model is as follows: The front end of the movable arm 112 behind the blade 111 is connected to the frame by a pin. The movable arm 112 can rotate around the pin. The rear end of the movable arm 112 is connected to the linkage rod 12 by a pin. The linkage rod 12 is connected to the adjustment device. When the adjustment device is activated, it drives the linkage rod 12 to move up and down. The linkage rod 12 drives the movable arm 112 to rotate around the pin at its front end. When the movable arm 112 rotates, it drives the blade 111 to rotate together, thereby realizing the opening and closing of the blade 111. The inner end of the handle 13 of the adjusting device is movably mounted on the frame and serves as the center of rotation. The upper end of the pull rod 14 is connected to the linkage rod 12 via a pin, and the lower end is connected to the middle of the handle 13 via a pin. When the operator pulls the handle 13 downward, the handle 13 rotates with the pin at its inner end as the center of rotation, thereby driving the pull rod 14 downward. When the pull rod 14 moves downward, it drives the linkage rod 12 downward. When the linkage rod 12 moves downward, it causes the blade 111 to rotate with the pin on the inner side of the movable arm 112 as the center of rotation, thereby opening the blade 111. The opening degree of the blade 111 varies depending on the downward angle of the handle 13.

[0029] like Figure 5 , 6As shown, the adjustment device further includes an angle fixing plate 15, which is disposed in the frame. The angle fixing plate 15 has angle positioning holes 151 spaced apart. The handle 13 is connected to the angle fixing plate 15 and located within the angle positioning holes 151. The function of the angle fixing plate 15 is to secure the handle 13 in the angle positioning holes at different positions on the angle fixing plate 15, thereby allowing the blades 111 to maintain different opening degrees.

[0030] like Figure 7 As shown, the opening and closing blade 11 further includes a blade 111 and a movable arm 112. The movable arm 112 is fixedly disposed on the rear side of the blade 111. The front end of the movable arm 112 is movably disposed on the frame by a pin, and the rear end is connected to the linkage rod 12 by a pin.

[0031] Furthermore, the opening angle of the opening and closing blade 11 is 0-105°.

[0032] like Figure 4 As shown, the sand-proof nets 2 are arranged in groups and split open on the frame to allow for opening and closing. The inner sides of the sand-proof nets 2 are connected to each other by latches, and the outer sides are connected to the frame by hinges. To open, first unlock the latches, then open the sand-proof nets 2 to both sides. The maximum opening angle of a single sand-proof net 2 is 90°.

[0033] Furthermore, the opening and closing angle of the sand-proof net 2 is 0-90°.

[0034] Furthermore, the sand-proof net 2 includes an outer frame and a protective net. The outer frame is a 30*30mm stainless steel mesh frame, and the protective net is a 100-mesh stainless steel sand-proof net. The protective net is stacked in two layers on the outer frame.

[0035] Furthermore, the adjustment device includes a handle 13, a pull rod 14, and a motor, with the output end of the motor located on the handle 13. Automatic control is achieved by starting and stopping the motor, and the rotation of the motor drives the handle 13 to move, thus enabling stepless adjustment of the opening angle.

[0036] Furthermore, anti-clogging sensors are also provided, which are arranged in pairs, one on the inner side of the air regulating louver 1 and the other on the outer side of the sand-proof net 2. When the mechanism is running, the degree of clogging of the air regulating louver 1 is determined based on the pressure difference detected by the two anti-clogging sensors. When the clogging exceeds the set value, the fan on the cooler is used for backflushing to clean it, or manual cleaning and maintenance is performed.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sand accumulation preventing air volume adjusting mechanism for a cooler, which is detachably provided on an adiabatic cooler, characterized in that: Including adjustment Wind louvers (1) and sand-proof net (2), wherein the sand-proof net (2) is set on the outside of the wind louvers (1); the wind louvers (1) include a frame, opening and closing blades (11), a linkage rod (12) and an adjustment device, wherein the opening and closing blades (11) are movably set in the frame, the linkage rod (12) is movably connected to the opening and closing blades (11) set at intervals, and the adjustment device is set in the frame and connected to the linkage rod (12); The adjustment device includes a handle (13) and a pull rod (14). The inner end of the handle (13) is movably mounted on the frame. The upper end of the pull rod (14) is movably connected to the linkage rod (12), and the lower end is movably connected to the handle (13).

2. The air volume adjusting mechanism for a cooler with sand accumulation prevention according to claim 1, characterized in that: The adjustment device also includes an angle fixing plate (15), which is set in the frame. Angle positioning holes (151) are provided on the angle fixing plate (15) at intervals. The handle (13) is connected to the angle fixing plate (15) and is located in the angle positioning holes (151).

3. The air volume adjusting mechanism for a cooler having a sand accumulation preventing function according to claim 1, characterized in that: The opening and closing blade (11) includes a blade (111) and a movable arm (112). The movable arm (112) is fixedly disposed on the rear side of the blade (111). The front end of the movable arm (112) is movably disposed on the frame, and the rear end is movably connected to the linkage rod (12).

4. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: The opening angle of the opening and closing blade (11) is 0-105°.

5. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: The sand-proof nets (2) are arranged in groups and are set on the frame in pairs. The inner sides of the sand-proof nets (2) are connected to each other by buckles, and the outer sides are connected to the frame by hinges.

6. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: The sand-proof net (2) includes an outer frame and a protective net, with two overlapping layers of the protective net.

7. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: The opening and closing angle of the sand-proof net (2) is 0-90°.

8. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: The adjustment device includes a handle (13), a pull rod (14) and a motor, with the output end of the motor located on the handle (13).

9. The dust accumulation preventing air volume adjusting mechanism for a cooler according to claim 1, characterized in that: It is also equipped with anti-blocking sensors, which are set in pairs and respectively set on the inner side of the air regulating louver (1) and the outer side of the sand-proof net (2).