Cooling tower heat dissipation structure

Abstract

The utility model provides a cooling tower heat dissipation structure, which belongs to the technical field of cooling towers and comprises a first frame, a plurality of first blades, a second frame and a plurality of second blades. The first frame is fixedly arranged on the cooling tower. The multiple first blades are horizontally and rotationally arranged on the first frame and evenly distributed in the height direction of the first frame. The second frame is arranged on the cooling tower in a lifting mode through the lifting driving piece and arranged on the periphery of the first frame in a sleeving mode. The second blades are horizontally and rotationally arranged on the second frame and evenly distributed in the height direction of the second frame, and the second blades and the first blades are in one-to-one correspondence. And when the first blades and the corresponding second blades rotate to the same angle, the second frame can move until the first blades are attached to the corresponding second blades, so that the air inlet amount of the cooling tower is increased. According to the cooling tower heat dissipation structure, the air inlet amount of the cooling tower louver can be adjusted according to the wet bulb temperature.

Description

Technical Field

[0001] This utility model belongs to the field of cooling tower technology, and more specifically, it relates to a cooling tower heat dissipation structure. Background Technology

[0002] Cooling towers play a crucial role in the central air conditioning system of subway platforms, performing the core functions of heat dissipation and circulating water cooling, and are essential equipment for maintaining a stable environment within the subway station. The core heat dissipation mechanism of a cooling tower relies on the heat absorption through water evaporation, and the evaporation rate is directly affected by the wet-bulb temperature. The lower the wet-bulb temperature, the stronger the air's moisture absorption capacity, and the higher the evaporative heat dissipation efficiency. Conversely, when the wet-bulb temperature rises, the air approaches saturation, evaporation slows down, and the heat dissipation capacity decreases.

[0003] The louvers on a cooling tower are a key component of the heat dissipation system. By controlling the airflow into the cooling tower, the louvers affect the intensity of heat exchange between the air and the circulating water, thus determining the cooling tower's heat dissipation capacity. However, traditional cooling tower louvers are a one-piece static structure. Under fluctuations in the external wet-bulb temperature, the airflow into the cooling tower cannot match the actual heat dissipation requirements, resulting in a reduced energy efficiency ratio, shortened equipment lifespan, and increased operation and maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a cooling tower heat dissipation structure that adjusts the air intake of the cooling tower louvers according to the wet-bulb temperature.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a cooling tower heat dissipation structure, installed at the air inlet of the cooling tower, comprising:

[0006] The first frame is fixedly mounted on the cooling tower;

[0007] Multiple first blades are horizontally rotatably mounted on the first frame and are evenly distributed along the height direction of the first frame;

[0008] The second frame is lifted and mounted on the cooling tower via a lifting drive component, and is fitted around the periphery of the first frame; and

[0009] Multiple second blades are horizontally rotatably mounted on the second frame and are evenly distributed along the height direction of the second frame. Each second blade corresponds to one of the first blades.

[0010] When the first blade and the corresponding second blade rotate to the same angle, the second frame can move so that the first blade and the corresponding second blade fit together, thereby increasing the air intake of the cooling tower.

[0011] When the first blade and the corresponding second blade rotate to the same angle, the second frame can move to separate the first blade and the corresponding second blade, so as to reduce the air intake of the cooling tower.

[0012] In one possible implementation, the cooling tower heat dissipation structure further includes a drive mechanism, the drive mechanism comprising:

[0013] A first drive component is disposed on the first frame and is used to drive each of the first blades to rotate synchronously.

[0014] The second drive assembly, mounted on the second frame, is used to drive each of the second blades to rotate synchronously.

[0015] In one possible implementation, the first driving component includes:

[0016] Multiple first connecting parts are fixedly disposed on the first blade and correspond one-to-one with the multiple first blades;

[0017] The first transmission part is hinged to each of the first connecting parts;

[0018] The first electric cylinder is hinged at both ends to the cooling tower and the first transmission unit, respectively.

[0019] In one possible implementation, the first blade is rotatably connected to the first frame via a first pivot.

[0020] The first connecting part is fixedly connected to the first rotating shaft and corresponds one-to-one with the first rotating shaft.

[0021] In one possible implementation, the second driving component includes:

[0022] Multiple second connecting parts are fixedly disposed on the second blades and correspond one-to-one with the multiple second blades;

[0023] The second transmission part is hinged to each of the second connecting parts;

[0024] The second electric cylinder is hinged at both ends to the second frame and the second transmission unit, respectively.

[0025] In one possible implementation, the second blade is rotatably connected to the second frame via a second pivot.

[0026] The second connecting part is fixedly connected to the second rotating shaft and corresponds one-to-one with the second rotating shaft; the two sides of the first frame are provided with notches in the vertical direction, the second rotating shaft passes through the notches and corresponds one-to-one with the notches.

[0027] In one possible implementation, the lifting drive is a third electric cylinder, with its two ends fixedly connected to the cooling tower and the second frame, respectively, and its extension and retraction direction being the same as the movement direction of the second frame.

[0028] In one possible implementation, the cooling tower heat dissipation structure further includes:

[0029] The controller is mounted on the cooling tower and is electrically connected to the drive mechanism and the lifting drive component;

[0030] A dry-bulb and wet-bulb temperature sensor is installed outside the cooling tower and is electrically connected to the controller.

[0031] In one possible implementation, each of the first blades and each of the second blades is fixedly provided with a magnetic strip on its windward side, and when the first blade and the corresponding second blade are in contact, the two corresponding magnetic strips attract each other.

[0032] In one possible implementation, the cooling tower has a guide groove in the vertical direction, and the second frame has a sliding part that is slidably connected to the guide groove.

[0033] The cooling tower heat dissipation structure provided by this utility model has the following advantages compared with the prior art: The opening and closing angle of the blades can be adjusted by adjusting the angle of the first and second blades. Simultaneously, in conjunction with the vertical displacement control of the second frame, the distance between the first and second blades can be adjusted, thus forming a dual-degree-of-freedom adjustment system. This achieves coordinated changes in the blade opening and closing angle and the blade distance. When the external wet-bulb temperature fluctuates, the heat dissipation requirements of the cooling tower can be matched by adjusting the blade tilt angle and the blade distance, thereby solving the technical problem of mismatch between air intake and evaporative heat dissipation requirements in the prior art.

[0034] Traditional cooling towers, due to their inflexible airflow adjustment, may experience prolonged high-load or inefficient operation when wet-bulb temperatures change. In contrast, this cooling tower's heat dissipation structure can adjust the airflow according to wet-bulb temperature, ensuring that all components operate within a reasonable load range. Therefore, it effectively extends the equipment's lifespan, reduces maintenance costs, and improves the stability and economy of cooling tower operation. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the overall structure of the cooling tower heat dissipation structure provided in this embodiment of the utility model.

[0037] Figure 2 This is a cross-sectional view of the cooling tower heat dissipation structure provided in an embodiment of the present invention.

[0038] Figure 3 This is a cross-sectional view of the second frame in the hidden state of the cooling tower, provided as an embodiment of the present invention.

[0039] Figure 4 This is a schematic diagram of the overall structure of the heat dissipation structure in the concealed state of the cooling tower, as provided in an embodiment of this utility model.

[0040] In the diagram: 11, First frame; 12, First blade; 121, First rotating shaft; 13, Notch; 21, Second frame; 211, Sliding part; 22, Second blade; 221, Second rotating shaft; 31, First connecting part; 32, First transmission part; 33, First electric cylinder; 41, Second connecting part; 42, Second transmission part; 43, Second electric cylinder; 51, Third electric cylinder; 61, Controller; 62, Dry and wet bulb temperature sensor; 7, Magnetic strip; 8, Cooling tower; 81, Guide groove. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] Please see Figure 1 and Figure 2 This invention provides a cooling tower heat dissipation structure. The cooling tower heat dissipation structure is installed at the air inlet of a cooling tower 8. The cooling tower heat dissipation structure includes a first frame 11, multiple first blades 12, a second frame 21, and multiple second blades 22. The first frame 11 is fixedly mounted on the cooling tower 8. The multiple first blades 12 are all horizontally rotatably mounted on the first frame 11 and are evenly distributed along the height direction of the first frame 11. The second frame 21 is lifted and lowered on the cooling tower 8 by a lifting drive and is fitted around the first frame 11. The multiple second blades 22 are all horizontally rotatably mounted on the second frame 21 and are evenly distributed along the height direction of the second frame 21, with each second blade 22 corresponding to one of the first blades 12.

[0043] When the first blade 12 and the corresponding second blade 22 rotate to the same angle, the second frame 21 can move so that the first blade 12 and the corresponding second blade 22 are in contact, thereby increasing the air intake of the cooling tower 8. When the first blade 12 and the corresponding second blade 22 rotate to the same angle, the second frame 21 can move so that the first blade 12 and the corresponding second blade 22 are separated, thereby reducing the air intake of the cooling tower 8.

[0044] When the ambient wet-bulb temperature decreases and the cooling tower 8 requires a large intake of air to enhance heat dissipation, the first blade 12 and the corresponding second blade 22 rotate to a larger angle. Subsequently, the lifting drive drives the second frame 21 to move downwards, causing the first blade 12 and the second blade 22 to fit tightly together. At this time, the gap between adjacent blades increases, forming sparsely distributed blades at the air inlet of the cooling tower 8. This allows air to enter the cooling tower 8 more efficiently, exchanging heat with the circulating water, thereby significantly increasing the air intake and improving heat dissipation efficiency.

[0045] When the ambient wet-bulb temperature rises and the air's moisture absorption capacity decreases, the cooling tower 8 needs to reduce its air intake. The first blade 12 and the second blade 22 rotate to a smaller angle, and then the lifting drive drives the second frame 21 upwards, separating the first blade 12 from the second blade 22. At this time, the gap between adjacent blades decreases, forming densely distributed blades at the air inlet of the cooling tower 8. This reduces the air intake of the cooling tower 8 accordingly, avoiding the problem of reduced heat dissipation efficiency due to excessive air intake but insufficient moisture absorption and heat dissipation. This method of dynamically adjusting the air intake based on wet-bulb temperature, compared to traditional integrated static louvers, can precisely match the heat dissipation requirements of the cooling tower 8 under different operating conditions, ensuring that the cooling tower 8 always operates at high efficiency and effectively improving the system's energy efficiency ratio.

[0046] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The cooling tower heat dissipation structure also includes a drive mechanism, which comprises a first drive assembly and a second drive assembly. The first drive assembly is mounted on the first frame 11 and is used to drive each first blade 12 to rotate synchronously. The second drive assembly is mounted on the second frame 21 and is used to drive each second blade 22 to rotate synchronously.

[0047] When the air intake needs to be adjusted, the first and second drive components start simultaneously, thereby enabling all first blades 12 and all second blades 22 to rotate synchronously. This synchronous rotation ensures that the angles of all first blades 12 and all second blades 22 are always consistent, avoiding airflow turbulence caused by inconsistent angles of individual blades, ensuring the regularity and stability of the air intake channel, improving the accuracy and reliability of air intake adjustment, and further optimizing the heat dissipation performance of the cooling tower 8.

[0048] In some embodiments, see Figure 2 and Figure 3 The first drive assembly includes multiple first connecting parts 31, a first transmission part 32, and a first electric cylinder 33. The multiple first connecting parts 31 are fixedly mounted on the first blades 12 and correspond one-to-one with each of the first blades 12. The first transmission part 32 is hinged to each of the first connecting parts 31. The two ends of the first electric cylinder 33 are hinged to the cooling tower 8 and the first transmission part 32, respectively.

[0049] When the first electric cylinder 33 is working, its piston rod extends or retracts, thereby driving the first transmission part 32 to rotate. Since the first transmission part 32 is hinged to multiple first connecting parts 31, this rotation is transmitted to the first blade 12 through the first connecting parts 31, causing the first blade 12 to rotate in the first frame 11.

[0050] It should be noted that the first electric cylinder 33 has high-precision displacement control capabilities, enabling precise control of the piston rod's extension and retraction length, and thus accurately controlling the rotation angle of the first blade 12. This precise angle control allows the opening of the air intake channel to be finely adjusted according to actual needs, ensuring that the air intake of the cooling tower 8 can be precisely controlled under different wet-bulb temperatures, improving the responsiveness of the heat dissipation structure to environmental changes and optimizing heat dissipation efficiency.

[0051] In some embodiments, see Figure 3 The first blade 12 is rotatably connected to the first frame 11 via the first rotating shaft 121. The first connecting part 31 is fixedly connected to the first rotating shaft 121 and corresponds one-to-one with the first rotating shaft 121.

[0052] The power transmitted by the first electric cylinder 33 through the first transmission part 32 can act on the first rotating shaft 121 through the first connecting part 31, thereby driving the first blade 12 to rotate.

[0053] In some embodiments, see Figure 2 and Figure 4 The second drive assembly includes multiple second connecting parts 41, a second transmission part 42, and a second electric cylinder 43. The multiple second connecting parts 41 are fixedly mounted on the second blades 22 and correspond one-to-one with each of the second blades 22. The second transmission part 42 is hinged to each of the second connecting parts 41. The two ends of the second electric cylinder 43 are respectively hinged to the second frame 21 and the second transmission part 42.

[0054] When the second electric cylinder 43 is working, its piston rod extends or retracts, thereby driving the second transmission part 42 to rotate. Since the second transmission part 42 is hinged to multiple second connecting parts 41, this rotation is transmitted to the second blade 22 through the second connecting parts 41, causing the second blade 22 to rotate in the second frame 21.

[0055] It should be noted that the second electric cylinder 43 has high-precision displacement control capabilities, enabling precise control of the piston rod's extension and retraction length, and thus accurately controlling the rotation angle of the second blade 22. This precise angle control allows the opening of the air intake channel to be finely adjusted according to actual needs, ensuring that the air intake of the cooling tower 8 can be precisely controlled under different wet-bulb temperatures, improving the responsiveness of the heat dissipation structure to environmental changes and optimizing heat dissipation efficiency.

[0056] In some embodiments, see Figure 3 The second blade 22 is rotatably connected to the second frame 21 via the second rotating shaft 221. The second connecting part 41 is fixedly connected to the second rotating shaft 221 and corresponds one-to-one with the second rotating shaft 221. The first frame 11 has notches 13 on both sides along the vertical direction, and the second rotating shaft 221 passes through the notches 13 and corresponds one-to-one with the notches 13.

[0057] During the raising and lowering of the second frame 21, the second rotating shaft 221 can move smoothly within the notch 13, ensuring that the second blade 22 always maintains a corresponding relationship with the first blade 12. When the second frame 21 rises, the second rotating shaft 221 moves upward within the notch 13, and the second blade 22 rises together with the second frame 21.

[0058] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The lifting drive component is a third electric cylinder 51. The two ends of the third electric cylinder 51 are fixedly connected to the cooling tower 8 and the second frame 21, respectively, and the extension and retraction direction is the same as the movement direction of the second frame 21.

[0059] The third electric cylinder 51 features rapid response and high-precision positioning, enabling precise control of the lifting and lowering position of the second frame 21. This ensures that the first blade 12 and the second blade 22 achieve ideal positioning when separating or engaging, thereby accurately controlling the air intake. This rapid response and precise positioning capability allows the heat dissipation structure to adjust the air intake in a timely manner according to environmental changes, improving the adaptability of the cooling tower 8 to environmental variations and further ensuring the stability and efficiency of the heat dissipation effect.

[0060] In some embodiments, see Figure 1 The cooling tower heat dissipation structure also includes a controller 61 and a dry-bulb and wet-bulb temperature sensor 62. The controller 61 is mounted on the cooling tower 8 and is electrically connected to the drive mechanism and the lifting drive component. The dry-bulb and wet-bulb temperature sensor 62 is mounted outside the cooling tower 8 and is electrically connected to the controller 61.

[0061] The wet-bulb and dry-bulb temperature sensor 62 monitors the wet-bulb temperature of the external environment in real time and transmits the temperature signal to the controller 61. The controller 61 has a pre-set algorithm for adjusting the airflow based on the wet-bulb temperature. When the wet-bulb temperature changes, the controller 61 analyzes the data according to the algorithm and determines to adjust the airflow of the cooling tower 8. The controller 61 sends corresponding commands to the first electric cylinder 33 of the first drive assembly, the second electric cylinder 43 of the second drive assembly, and the third electric cylinder 51 of the lifting drive component. The first electric cylinder 33 and the second electric cylinder 43 actuate, causing the first blade 12 and the second blade 22 to rotate. Then, the third electric cylinder 51 drives the second frame 21 to rise and fall, thereby adjusting the airflow. Through this intelligent control method, the heat dissipation structure can automatically, quickly, and accurately adjust the airflow according to changes in the external wet-bulb temperature without manual intervention. This improves the intelligence level of the cooling tower 8's operation, optimizes heat dissipation efficiency, reduces energy consumption, and also reduces the risk of human error.

[0062] In some embodiments, see Figure 3 and Figure 4 Each first blade 12 and each second blade 22 is fixedly provided with a magnetic strip 7 on its windward side. When the first blade 12 and the corresponding second blade 22 are in contact, the two corresponding magnetic strips 7 attract each other.

[0063] When the first blade 12 and the second blade 22 are brought together to increase the air intake, the adsorption force between the magnetic strips 7 makes the first blade 12 and the second blade 22 fit together more tightly.

[0064] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The cooling tower 8 has a guide groove 81 opened in the vertical direction, and the second frame 21 is fixedly provided with a sliding part 211 suitable for sliding connection with the guide groove 81.

[0065] During the lifting and lowering process of the second frame 21, the sliding part 211 slides within the guide groove 81, providing a stable guiding effect for the lifting and lowering of the second frame 21. Through the cooperation between the sliding part 211 and the guide groove 81, the second frame 21 can only move in the vertical direction, thereby reducing the lateral swaying of the second frame 21 during the lifting and lowering process.

[0066] In summary, the cooling tower heat dissipation structure provided by this utility model, compared with the prior art, allows for adjustment of the blade opening angle through angle adjustment of the first blade 12 and the second blade 22. Simultaneously, in conjunction with the vertical displacement control of the second frame 21, the distance between the first blade 12 and the second blade 22 can be adjusted, thus forming a dual-degree-of-freedom adjustment system. This achieves coordinated changes in the blade opening angle and the blade distance. When the external wet-bulb temperature fluctuates, the blade tilt angle and blade distance can be adjusted to match the heat dissipation requirements of the cooling tower, thereby solving the technical problem of mismatch between air intake and evaporative heat dissipation requirements in the prior art.

[0067] 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 and improvements 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 cooling tower heat dissipation structure installed at an air inlet of a cooling tower (8), characterized in that, The application relates to a cooling tower heat dissipation structure which comprises the following parts: a first frame (11) fixedly arranged on the cooling tower (8); a plurality of first blades (12) horizontally arranged on the first frame (11) and evenly distributed along the height direction of the first frame (11); a second frame (21) arranged on the cooling tower (8) through a lifting driving element and sleeved on the periphery of the first frame (11); and a plurality of second blades (22) horizontally arranged on the second frame (21) and evenly distributed along the height direction of the second frame (21), wherein the second blades (22) correspond to the first blades (12) one by one. When the first blades (12) and the corresponding second blades (22) are rotated to the same angle, the second frame (21) can be moved to be attached to the first blades (12) and the corresponding second blades (22), so that the air inlet amount of the cooling tower (8) is increased. When the first blades (12) and the corresponding second blades (22) are rotated to the same angle, the second frame (21) can be moved to be separated from the first blades (12) and the corresponding second blades (22), so that the air inlet amount of the cooling tower (8) is reduced.

2. A cooling tower heat dissipating structure as claimed in claim 1, wherein The cooling tower heat dissipation structure further comprises a driving mechanism, wherein the driving mechanism comprises: a first driving assembly arranged on the first frame (11) and used for driving each first blade (12) to synchronously rotate; a second driving assembly arranged on the second frame (21) and used for driving each second blade (22) to synchronously rotate.

3. A cooling tower heat dissipating structure as claimed in claim 2, wherein The first driving assembly comprises: a plurality of first connecting parts (31) fixedly arranged on the first blades (12) and corresponding to the first blades (12) one by one; a first transmission part (32) hingedly connected to each first connecting part (31); a first electric cylinder (33) having two ends hingedly connected to the cooling tower (8) and the first transmission part (32) respectively.

4. A cooling tower heat dissipating structure as claimed in claim 3, wherein The first blades (12) are rotationally connected to the first frame (11) through first rotation shafts (121); The first connecting parts (31) are fixedly connected to the first rotation shafts (121) and correspond to the first rotation shafts (121) one by one.

5. A cooling tower heat dissipating structure as claimed in claim 2, wherein The second driving assembly comprises: a plurality of second connecting parts (41) fixedly arranged on the second blades (22) and corresponding to the second blades (22) one by one; a second transmission part (42) hingedly connected to each second connecting part (41); a second electric cylinder (43) having two ends hingedly connected to the second frame (21) and the second transmission part (42) respectively.

6. A cooling tower heat dissipating structure as claimed in claim 5, wherein The second blades (22) are rotationally connected to the second frame (21) through second rotation shafts (221); The second connecting parts (41) are fixedly connected to the second rotation shafts (221) and correspond to the second rotation shafts (221) one by one. The two sides of the first frame (11) are provided with notches (13) in the vertical direction, the second rotation shafts (221) penetrate through the notches (13) and correspond to the notches (13) one by one.

7. A cooling tower heat dissipating structure as claimed in claim 2, wherein The lifting driving member is a third electric cylinder (51), two ends of the third electric cylinder (51) are fixedly connected with the cooling tower (8) and the second frame (21) respectively, and the telescopic direction is the same as the moving direction of the second frame (21).

8. A cooling tower heat dissipating structure as claimed in claim 2, wherein The cooling tower heat dissipation structure further comprises: A controller (61) is arranged on the cooling tower (8) and is electrically connected with the driving mechanism and the lifting driving member; A dry-wet bulb temperature sensor (62) is arranged outside the cooling tower (8) and is electrically connected with the controller (61).

9. A cooling tower heat dissipating structure as claimed in claim 1, wherein, The windward side of each first blade (12) and each second blade (22) is fixedly provided with a magnetic stripe (7), and when the first blade (12) and the corresponding second blade (22) are attached, the corresponding two magnetic stripes (7) are mutually adsorbed.

10. The cooling tower heat dissipating structure of claim 1 wherein, A guide groove (81) is formed on the cooling tower (8) in the vertical direction, and a sliding part (211) suitable for sliding connection with the guide groove (81) is fixedly arranged on the second frame (21).

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