Air cooler

Abstract

The utility model relates to an air cooler, and relates to the technical field of heat exchange equipment. The air cooler comprises a fan, a guide vane assembly and a control assembly, the guide vane assembly is arranged on one side of the fan, the control assembly comprises a motor, a controller and a temperature sensor, the motor and the temperature sensor are both connected with the controller, and the temperature sensor is used for detecting the temperature of a fluid medium. The motor is connected with the guide vane assembly to adjust the opening degree of the guide vane assembly. The controller can receive the real-time temperature, collected by the temperature sensor, of the fluid medium, so that the motor is controlled to adjust the opening degree of the guide vane assembly according to the current temperature of the fluid medium, the flow of the cooling gas is adjusted to be within a proper range, and the temperature of the fluid medium is within a proper temperature interval; manual adjustment by workers on site is not needed, the temperature change of the fluid medium can be responded in time, and the operation convenience and the adjustment efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to an air cooler. Background Technology

[0002] Air coolers are widely used in many industrial fields to cool various process fluids. Traditional air cooler guide vane openings are often fixed or require manual adjustment, making it difficult for the air cooler to adjust the opening in a timely manner according to changes in ambient temperature and workload, thus hindering efficient operation.

[0003] For example, Chinese patent CN218410461U discloses a wind-cooled air cooler. By rotating the first handle, the first gear is driven to rotate, which in turn drives the first rotating rod to rotate the connecting rope, thereby adjusting the horizontal guide plate. By rotating the second handle, the second gear is driven to rotate, which in turn drives the second gears on both sides to rotate, thereby driving the second rotating rod to rotate, thereby adjusting the vertical guide plate. However, it cannot automatically adjust according to changes in ambient temperature and workload. Utility Model Content

[0004] This invention provides an air cooler whose guide vane assembly opening can be automatically adjusted to better meet the cooling requirements of the fluid medium.

[0005] This utility model provides an air cooler, including a fan, a guide vane assembly, and a control assembly. The guide vane assembly is disposed on one side of the fan. The control assembly includes a motor, a controller, and a temperature sensor. The motor and the temperature sensor are both connected to the controller. The temperature sensor is used to detect the temperature of the fluid medium. The motor is connected to the guide vane assembly to adjust the opening of the guide vane assembly.

[0006] In one embodiment, the guide vane assembly includes a screw, a sleeve, a support frame, a connecting rod, and a blade. One end of the screw is connected to the output end of the motor. The sleeve is fitted onto the surface of the screw and threadedly connected to the screw. One end of the connecting rod is movably disposed on the surface of the sleeve, and the other end of the connecting rod is connected to the blade. A first connecting shaft is provided in the middle of the connecting rod, and the first connecting shaft is disposed on the support frame.

[0007] In one embodiment, a second connecting shaft is provided at the end of the connecting rod away from the blade, and a limiting groove for accommodating the second connecting shaft is provided on the surface of the sleeve.

[0008] In one embodiment, the opening direction of the limiting groove is perpendicular to the length direction of the sleeve.

[0009] In one embodiment, the width of the limiting groove is greater than the diameter of the second connecting shaft.

[0010] In one embodiment, the surface of the end of the second connecting shaft that is inserted into the limiting groove is a hemispherical surface.

[0011] In one embodiment, the limiting groove is filled with grease.

[0012] In one embodiment, the connecting rod includes a first segment and a second segment connected to each other, the length of the first segment being greater than the length of the second segment, and the first connecting shaft being disposed at the connection between the first segment and the second segment.

[0013] In one embodiment, the air cooler further includes a heat exchanger disposed on the side of the guide vane assembly away from the fan, the side of the support frame closer to the fan being the air inlet side of the guide vane assembly, and the side of the support frame closer to the heat exchanger being the air outlet side of the guide vane assembly.

[0014] In one embodiment, a speed reduction mechanism is provided between the motor and the screw.

[0015] Compared with the prior art, the advantages of this utility model are that the controller can receive the real-time temperature of the fluid medium collected by the temperature sensor, and then control the motor to adjust the opening of the guide vane assembly according to the current temperature of the fluid medium, adjust the flow rate of the cooling gas to a suitable range, and keep the temperature of the fluid medium within a suitable temperature range. There is no need for manual adjustment on site, and it can respond to changes in the temperature of the fluid medium in a timely manner, which greatly improves the convenience of operation and adjustment efficiency. Attached Figure Description

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the air cooler in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the guide vane assembly in the first opening degree in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the guide vane assembly in the second opening position in an embodiment of this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0021] Figure label:

[0022] 1. Fan; 2. Guide vane assembly; 21. Screw; 22. Sleeve; 221. Limiting groove; 23. Support frame; 24. Connecting rod; 241. First section; 242. Second section; 25. Blade; 26. First connecting shaft; 27. Second connecting shaft; 3. Control assembly; 31. Motor; 32. Controller; 33. Temperature sensor; 4. Medium pipeline; 5. Heat exchanger. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, an air cooler according to an embodiment of the present invention includes a fan 1, a guide vane assembly 2, and a control assembly 3. The guide vane assembly 2 is disposed on one side of the fan 1. The control assembly 3 includes a motor 31, a controller 32, and a temperature sensor 33. The motor 31 and the temperature sensor 33 are both connected to the controller 32. The temperature sensor 33 is used to detect the temperature of the fluid medium in the medium pipeline 4. The motor 31 is connected to the guide vane assembly 2 to adjust the opening of the guide vane assembly 2.

[0025] The controller 32 can receive the real-time temperature of the fluid medium in the medium pipeline 4 collected by the temperature sensor 33, and then control the motor 31 to adjust the opening of the guide vane assembly 2 according to the current temperature of the fluid medium, so as to adjust the flow rate of the cooling gas to a suitable range and keep the temperature of the fluid medium within a suitable temperature range. There is no need for manual adjustment on site, and it can respond to the temperature change of the fluid medium in a timely manner, which greatly improves the convenience of operation and adjustment efficiency.

[0026] like Figure 2As shown, the guide vane assembly 2 includes a screw 21, a sleeve 22, a support frame 23, a connecting rod 24, and multiple blades 25. One end of the screw 21 is connected to the output end of the motor 31. The sleeve 22 is fitted onto the surface of the screw 21 and threadedly connected to it. One end of the connecting rod 24 is movably disposed on the surface of the sleeve 22, and the other end is connected to the blades 25. A first connecting shaft 26 is provided in the middle of the connecting rod 24 and is disposed on the support frame 23. The motor 31 can drive the screw 21 to rotate. Since the screw 21 and the sleeve 22 are threadedly connected, the sleeve 22 can move along the screw 21, thereby driving the connecting rod 24 to rotate around the first connecting shaft 26, causing the angle of the blades 25 to change. In this embodiment, the screw 21 and the sleeve 22 constitute a ball screw structure, with the screw 21 acting as a lead screw and the sleeve 22 acting as a nut. Because multiple blades 25 need to be installed on the sleeve 22, its length is relatively long, but its structure is similar to that of the nut in a ball screw, and will not be described in detail here. The end of the screw 21 away from the motor 31 passes through the sleeve 22 and is mounted on the support frame 23 through a bearing (not shown in the figure) to improve the stability of the screw 21. The motor 31 can rotate both clockwise and counterclockwise, enabling the sleeve 22 to reciprocate, and the displacement of the sleeve 22 can be continuously varied, thereby allowing the opening of the blades 25 to also be continuously varied. This makes the flow rate regulation of the cooling gas by the guide vane assembly 2 more precise, and more accurately meets the cooling needs of the fluid medium.

[0027] In this embodiment, motor 31 is a servo motor, which can perform high-precision adjustment.

[0028] Note that when the connecting rod 24 rotates around the first connecting shaft 26, the trajectory of the end of the connecting rod 24 away from the blade 25 is an arc. In order to enable the connecting rod 24 to rotate smoothly, the connecting rod 24 and the sleeve 22 are movably connected to avoid structural interference.

[0029] like Figure 3 and Figure 4 As shown, further, a second connecting shaft 27 is provided at the end of the connecting rod 24 away from the blade 25, and a limiting groove 221 for accommodating the second connecting shaft 27 is formed on the surface of the sleeve 22. The second connecting shaft 27 is inserted into the limiting groove 221, so that the second connecting shaft 27 can also be displaced to a certain extent in the limiting groove 221 when it moves with the sleeve 22, so as to realize the movable connection between the connecting rod 24 and the sleeve 22.

[0030] Furthermore, the opening direction of the limiting groove 221 is perpendicular to the length direction of the sleeve 22, which can make the most of the dimensions in the width direction of the sleeve 22 and achieve a larger displacement space for the second connecting shaft 27 with the shortest possible slot length.

[0031] In this embodiment, the width of the limiting groove 221 is greater than the diameter of the second connecting shaft 27 to prevent the second connecting shaft 27 from getting stuck in the limiting groove 221. It is worth noting that the width of the limiting groove 221 should only be slightly larger than the diameter of the second connecting shaft 27 to avoid excessive play affecting the adjustment accuracy.

[0032] To reduce friction between the second connecting shaft 27 and the sleeve 22, allowing the blade 25 to rotate smoothly, the surface of the end of the second connecting shaft 27 that inserts into the limiting groove 221 is hemispherical, and the limiting groove 221 is filled with grease. In this embodiment, the second connecting shaft 27 is rotatably mounted on the connecting rod 24. When the connecting rod 24 rotates, the second connecting shaft 27 also rotates, resulting in rolling friction rather than sliding friction between it and the sleeve 22, further reducing resistance.

[0033] like Figure 3 and Figure 4 As shown, the connecting rod 24 includes a first segment 241 and a second segment 242 connected to each other. The length of the first segment 241 is greater than the length of the second segment 242. A first connecting shaft 26 is disposed at the connection between the first segment 241 and the second segment 242. A blade 25 is disposed at the end of the second segment 242. Because the length of the first segment 241 is greater than the length of the second segment 242, a force-saving lever structure is formed, which can amplify the rotational torque that drives the connecting rod 24 to rotate, making it easier for the blade 25 to deflect.

[0034] Considering that the airflow generated by the fan 1 will exert pressure on the blades 25, and that the torque required to deflect the blades 25 is also large when the airflow velocity is high, a reduction mechanism (not shown in the figure) can be set between the motor 31 and the screw 21 to further amplify the torque. One end of the reduction mechanism is connected to the output end of the motor 31, and the other end is connected to the screw 21. The reduction mechanism can be a commonly used gear reduction mechanism, which will not be described in detail here.

[0035] like Figure 1 As shown, the air cooler in this embodiment also includes a heat exchanger 5, which is disposed on the side of the guide vane assembly 2 away from the fan 1. The side of the support frame 23 closest to the fan 1 is the air inlet side of the guide vane assembly 2, and the side of the support frame 23 closest to the heat exchanger 5 is the air outlet side of the guide vane assembly 2. The fluid medium in the medium pipe 4 can exchange heat with the heat exchanger 5, and the heat exchanger 5 is simultaneously cooled by the cooling air to maintain a low temperature. Both sides of the support frame 23 are open, forming a channel for the cooling airflow and providing support for the installation of the blades 25.

[0036] With a fixed power output from the fan 1, the flow rate of the cooling gas it outputs is also constant. However, the ambient temperature significantly affects the temperature of the fluid medium in the medium pipeline 4. For example, the ambient temperature in winter and summer may differ by more than 30°C. To maintain the temperature of the fluid medium in the medium pipeline 4 within a suitable temperature range, the required cooling power also differs significantly. In this embodiment, the flow rate of the cooling gas is adjusted by regulating the opening of the blades 25 in the guide vane assembly 2. This allows for continuous variation in the flow rate of the gas blown out from the guide vane assembly 2, thereby adapting to continuous changes in the ambient temperature and maintaining the temperature of the fluid medium in the medium pipeline 4 within a suitable temperature range.

[0037] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An air cooler, characterized in that, The device includes a fan, a guide vane assembly, and a control assembly. The guide vane assembly is disposed on one side of the fan. The control assembly includes a motor, a controller, and a temperature sensor. The motor and the temperature sensor are both connected to the controller. The temperature sensor is used to detect the temperature of the fluid medium. The motor is connected to the guide vane assembly to adjust the opening of the guide vane assembly.

2. The air cooler according to claim 1, characterized in that, The guide vane assembly includes a screw, a sleeve, a support frame, a connecting rod, and blades. One end of the screw is connected to the output end of the motor. The sleeve is fitted onto the surface of the screw and threadedly connected to the screw. One end of the connecting rod is movably disposed on the surface of the sleeve, and the other end of the connecting rod is connected to the blades. A first connecting shaft is provided in the middle of the connecting rod, and the first connecting shaft is disposed on the support frame.

3. The air cooler according to claim 2, characterized in that, The connecting rod is provided with a second connecting shaft at one end away from the blade, and the surface of the sleeve is provided with a limiting groove for accommodating the second connecting shaft.

4. The air cooler according to claim 3, characterized in that, The opening direction of the limiting groove is perpendicular to the length direction of the sleeve.

5. The air cooler according to claim 4, characterized in that, The width of the limiting groove is greater than the diameter of the second connecting shaft.

6. The air cooler according to claim 3, characterized in that, The surface of the end of the second connecting shaft that is inserted into the limiting groove is a hemispherical surface.

7. The air cooler according to claim 3, characterized in that, The limiting groove is filled with grease.

8. The air cooler according to claim 2, characterized in that, The connecting rod includes a first segment and a second segment that are connected to each other. The length of the first segment is greater than the length of the second segment, and the first connecting shaft is disposed at the connection between the first segment and the second segment.

9. The air cooler according to claim 2, characterized in that, It also includes a heat exchanger, which is disposed on the side of the guide vane assembly away from the fan. The side of the support frame closer to the fan is the air inlet side of the guide vane assembly, and the side of the support frame closer to the heat exchanger is the air outlet side of the guide vane assembly.

10. The air cooler according to claim 2, characterized in that, A speed reduction mechanism is provided between the motor and the screw.

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