Wind shielding device for cooling tower of power plant

Abstract

The utility model discloses a power plant cooling tower wind shielding device, which relates to the technical field of power plant cooling towers, and comprises a frame body, a plurality of turning plates are rotatably arranged in the frame body, the plurality of turning plates can turn within the range of 0-90 degrees at the same time, and when the plurality of turning plates are at 0 degree, the interior of the frame body can be blocked. A plurality of turning plates are arranged on the upper portion of the frame body, a driving cavity is formed in the upper portion of the frame body, a driving assembly is arranged in the driving cavity, the upper ends of the turning plates are connected with the driving assembly at the same time, and the driving assemblies in the wind shielding devices can be connected with one another. The universal joint pin on the first U-shaped rod is in butt joint with the second U-shaped rod to form a universal shaft mechanism, rotating shafts in every two adjacent wind shielding devices are connected, meanwhile, power transmission between the two wind shielding devices in the non-parallel state is guaranteed, and turning plates in all the connected wind shielding devices can be turned at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of power plant cooling towers, in particular to a wind shielding device for a power plant cooling tower. Background Technique

[0002] Generally, cooling towers are built in thermal power plants. The main function of the cooling tower is to spray circulating cooling water in it, making it directly contact with the air, and dissipating the carried heat into the atmosphere through evaporation and convection. The working condition of the cooling tower is affected by the workload of the thermal power plant and the surrounding environment. For example, when the thermal power plant increases the power generation, it needs to increase the circulating water volume to accelerate the cooling process. When the external environment is relatively low, it is necessary to keep the temperature in the cooling tower at a certain level, so it is necessary to reduce the circulating water volume. When the external environment is too low, some protective measures need to be taken for the cooling tower. The supercooled temperature will cause the cooling tower to freeze, affecting the normal operation of the cooling tower. Therefore, various anti-freezing measures must be adopted to avoid the cooling tower from freezing;

[0003] For example, in the utility model patent with the publication number of CN210892770U, a wind shielding device for a thermal power plant cooling tower is disclosed, which includes a frame body. The left side of the top of the frame body is fixedly connected with a first connecting plate, and the right side of the top of the frame body is fixedly connected with a second connecting plate. A short rod is arranged through the left side of the first connecting plate, and the right end of the short rod penetrates through the first connecting plate and is fixedly connected with a winding roller. The right side of the winding roller is movably connected with the left side of the second connecting plate through a rotating shaft. A wind shielding cloth is wound on the surface of the winding roller. A rectangular hole is opened at the top of the frame body, and sliding grooves are opened on both sides of the inner cavity of the frame body;

[0004] However, in use, usually multiple wind shielding devices are needed to enclose the air inlet at the bottom of the cooling tower. The prior art can only achieve simple splicing between multiple wind shielding devices, and cannot connect the power between multiple wind shielding devices. When adjusting the air inlet volume, each wind shielding device needs to be adjusted separately, and it is impossible to adjust the air inlet volume of multiple adjusting devices simultaneously, and the adjustment speed is relatively slow. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a wind shielding device for a power plant cooling tower to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model is realized by the following technical solutions: A wind blocking device for a power plant cooling tower, comprising a frame body, wherein a plurality of flap plates are rotatably arranged in the frame body, and the plurality of flap plates can simultaneously flip within a range of 0 degrees to 90 degrees. When the plurality of flap plates are at 0 degrees, they can block the inside of the frame body. An upper part inside the frame body is provided with a driving cavity, a driving component is arranged in the driving cavity, the upper ends of the plurality of flap plates are simultaneously connected to the driving component, and the driving components in the plurality of wind blocking devices can be connected to each other.

[0007] Preferably, the driving component includes a rotating shaft rotatably arranged in the driving cavity, a plurality of worm gears are fixedly arranged on the rotating shaft, a connecting shaft capable of extending into the driving cavity is fixedly arranged at the upper end of the flap plate, and a worm wheel capable of meshing with the worm gear is fixedly arranged on the connecting shaft.

[0008] Preferably, one end of the rotating shaft is fixedly provided with a U-shaped rod one, a cross shaft is rotatably connected inside the U-shaped rod one, the other end of the rotating shaft is fixedly provided with a U-shaped rod two, and two grooves are opened at the end of the U-shaped rod two, and the two grooves can be sleeved on the cross shaft.

[0009] Preferably, a driving shaft is rotatably arranged in the driving cavity, power is transmitted between the driving shaft and the rotating shaft by bevel gears, a motor is fixedly arranged outside the frame body, and the power output end of the motor is connected to the driving shaft.

[0010] Preferably, a positioning block is arranged on one side of the frame body, a positioning groove matching with the positioning block is arranged on the other side of the frame body, a connecting ear is also fixedly arranged on one side of the frame body, and a threaded groove corresponding to the position of the connecting ear is opened on the other side of the frame body.

[0011] Beneficial effects

[0012] The utility model provides a wind blocking device for a power plant cooling tower, which has the following beneficial effects: The rotating shaft arranged inside the frame body can drive a plurality of flap plates to flip simultaneously. The cross shaft on the U-shaped rod one is docked with the U-shaped rod two to form a universal shaft mechanism, realizing the connection of the rotating shafts in two adjacent wind blocking devices, and at the same time ensuring the power transmission between two wind blocking devices in a non-parallel state, so that the flap plates in all connected wind blocking devices can flip simultaneously. Brief description of the drawings

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 It is Figure 1 The sectional view taken along A-A in

[0015] Figure 3 It isFigure 1 Cross-sectional view taken along line B-B in

[0016] Figure 4 is Figure 1 Cross-sectional view taken along line C-C in

[0017] Figure 5 is Figure 2 Partial enlarged view of D in

[0018] Figure 6 is Figure 2 Partial enlarged view of E in

[0019] In the figure: 1. Frame body; 2. Flap; 3. Driving cavity; 4. Rotating shaft; 5. Worm; 6. Worm gear; 7. Positioning block; 8. Positioning groove; 9. Connecting ear; 10. Threaded groove; 11. First U-shaped rod; 12. Cross shaft; 13. Second U-shaped rod; 14. Groove; 15. Driving shaft; 16. Bevel gear; 17. Motor. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Please refer to Figures 1-6 , the present invention provides a technical solution: a wind blocking device for a power plant cooling tower, including a frame body 1, a plurality of flaps 2 are rotatably arranged in the frame body 1, and the plurality of flaps 2 can simultaneously flip within the range of 0 degrees to 90 degrees. When the plurality of flaps 2 are at 0 degrees, they can block the inside of the frame body 1. A driving cavity 3 is arranged inside the upper part of the frame body 1, a driving component is arranged in the driving cavity 3, the upper ends of the plurality of flaps 2 are simultaneously connected to the driving component, and the driving components in the plurality of wind blocking devices can be connected to each other.

[0022] As an embodiment of the present invention, the driving component includes a rotating shaft 4 rotatably arranged in the driving cavity 3, a plurality of worms 5 are fixedly arranged on the rotating shaft 4, a connecting shaft that can extend into the driving cavity 3 is fixedly arranged at the upper end of the flap 2, and a worm gear 6 that can be meshed with the worm 5 is fixedly arranged on the connecting shaft. By rotating the rotating shaft 4, the plurality of worm gears 6 can be simultaneously flipped, thereby changing the angle of the flap 2.

[0023] As an embodiment of the present invention, a first U-shaped rod 11 is fixedly arranged at one end of the rotating shaft 4, a cross shaft 12 is rotatably connected inside the first U-shaped rod 11, a second U-shaped rod 13 is fixedly arranged at the other end of the rotating shaft 4, and two grooves 14 are opened at the end of the second U-shaped rod 13. The two grooves 14 can be sleeved on the cross shaft 12. When the grooves 14 on the second U-shaped rod 13 are docked with the cross shaft 12, a universal shaft mechanism is formed, realizing the connection of the rotating shafts 4 in two adjacent wind blocking devices, and at the same time ensuring the power transmission between two wind blocking devices in a non-parallel state.

[0024] As an embodiment of the present utility model, one of the plurality of windshields can be selected to install a power source. The power source includes a driving shaft 15 rotatably disposed in the driving cavity 3. The driving shaft 15 and the rotating shaft 4 transmit power through a bevel gear 16. A motor 17 is fixedly disposed outside the frame 1, and the power output end of the motor 17 is connected to the driving shaft 15.

[0025] As an embodiment of the present utility model, a positioning block 7 is disposed on one side of the frame 1, a positioning groove 8 matching the positioning block 7 is disposed on the other side of the frame 1, a connecting ear 9 is further fixedly disposed on one side of the frame 1, and a threaded groove 10 corresponding to the position of the connecting ear 9 is formed on the other side of the frame 1.

[0026] The working principle and usage process of the present utility model: When in use, insert the positioning block 7 on the windshield into the positioning groove 8 of the adjacent windshield. At the same time, it should also be ensured that the groove 14 on the second U-shaped rod 13 can be docked with the cross shaft 12. Then, use a screw to fix the connecting ear 9 in the threaded groove 10 of the adjacent windshield to complete the connection of two adjacent windshields. Starting the motor 17 can drive the rotating shaft 4 to rotate, and thus the flaps 2 in all the connected windshields can be flipped simultaneously.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wind shielding device for a cooling tower in a power plant, characterized in that: The invention comprises a frame (1), wherein a plurality of flaps (2) are rotatably arranged inside the frame (1), wherein the plurality of flaps (2) can be turned simultaneously within a range of 0 to 90 degrees, and when the plurality of flaps (2) are at 0 degrees, the frame (1) can be sealed, a driving cavity (3) is arranged inside the upper part of the frame (1), a driving assembly is arranged in the driving cavity (3), the upper ends of the plurality of flaps (2) are simultaneously connected to the driving assembly, and the driving assemblies in the plurality of windshield devices can be connected to each other.

2. A wind shielding device for a cooling tower in a power plant according to claim 1, characterized in that: The driving assembly comprises a rotating shaft (4) rotatably arranged in the driving chamber (3), a plurality of worm gears (5) being fixedly arranged on the rotating shaft (4), a connecting shaft capable of extending into the driving chamber (3) being fixedly arranged on the upper end of the flap (2), and a worm wheel (6) capable of meshing with the worm gear (5) being fixedly arranged on the connecting shaft.

3. A wind shielding device for a cooling tower in a power plant according to claim 2, characterized in that: A U-shaped rod (11) is fixedly provided at one end of the rotating shaft (4), and a cross shaft (12) is rotatably connected inside the U-shaped rod (11). A U-shaped rod (13) is fixedly provided at the other end of the rotating shaft (4), and two grooves (14) are formed at the end of the U-shaped rod (13), and the two grooves (14) can be fitted on the cross shaft (12).

4. A wind shielding device for a cooling tower in a power plant according to claim 2, characterized in that: A driving shaft (15) is rotatably arranged in the driving chamber (3), a bevel gear (16) is used to transmit power between the driving shaft (15) and the rotating shaft (4), and a motor (17) is fixedly arranged outside the frame (1), and a power output end of the motor (17) is connected to the driving shaft (15).

5. A wind shielding device for a cooling tower in a power plant according to claim 1, characterized in that: A positioning block (7) is provided on one side of the frame (1), and a positioning groove (8) matching the positioning block (7) is provided on the other side of the frame (1). A connecting ear (9) is also fixedly provided on one side of the frame (1), and a threaded groove (10) corresponding to the position of the connecting ear (9) is provided on the other side of the frame (1).

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