A cooling tower louvre wind backflow prevention structure

Abstract

This utility model discloses a windproof backflow prevention structure for cooling tower louvers. It relates to the field of cooling tower louver accessories and includes: an external window frame, an anti-blowing mechanism, and an anti-detachment mechanism. The external window frame has an installation frame at its rear end and a side frame on its side. A limiting shaft is vertically installed inside the side frame, and a slider is sleeved on the outside of the limiting shaft. A return spring is sleeved on the outside of the slider, and a rack is installed on the outside of the slider. The anti-blowing mechanism prevents wind from directly impacting the surface of the external window frame, and the anti-detachment mechanism prevents the external window frame and installation frame from falling off. This windproof backflow prevention structure for cooling tower louvers, by rotating the external wind shield to change its angle, blocks wind from directly impacting the external window frame, reduces the impact of wind on the interior of the cooling tower, ensures stable airflow inside the cooling tower, maintains cooling efficiency, and requires no manual intervention.

Description

Technical Field

[0001] This utility model relates to the technical field of cooling tower louver accessories, specifically a cooling tower louver anti-windback structure. Background Technology

[0002] Cooling tower louvers are an important component of the cooling tower's air intake system, primarily used to regulate air intake and volume, playing a crucial role in cooling the circulating water. Traditional cooling tower louver applications commonly suffer from several problems, such as difficulty in precisely adjusting the louver blade angle, resulting in inflexible control over air intake and volume. This makes it impossible to quickly and effectively adjust according to actual operating conditions, thus affecting the cooling efficiency of the circulating water and preventing the cooling tower from achieving its optimal cooling effect.

[0003] Publication number CNCN205352181U discloses a closed-loop cooling tower louver. It employs a drive device, using a servo motor to drive a rotating shaft, which in turn drives a main linkage rod to adjust the angle of the louver blades. A side plate is provided to fix the louver blades and allow them to rotate on the side plate. A housing protects the main linkage rod and a second linkage rod, with the second linkage rod hinged to the housing and assisting the main linkage rod in adjusting the louver blade angle. This achieves the regulation of air intake and air volume in the closed-loop cooling tower, accelerating the cooling of the circulating water.

[0004] The existing technical solution has shortcomings in terms of automation and intelligence in adjusting the louver angle. Its adjustment mainly relies on the linkage of mechanical structures, lacking the ability to perceive and adaptively adjust environmental parameters (such as temperature and humidity) in real time. It cannot automatically, promptly, and accurately adjust the louver blade angle according to changes in the external environment, making it difficult to maintain efficient air intake and airflow regulation under complex and changing operating conditions. Therefore, it cannot fully meet the higher requirements for cooling tower cooling efficiency and energy saving in practical applications.

[0005] Therefore, in order to address the existing shortcomings, we conducted research and improvements and proposed a cooling tower louver structure to prevent backflow of wind. Utility Model Content

[0006] The purpose of this invention is to provide a cooling tower louver anti-windback structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cooling tower louver anti-backflow structure, comprising: an external window frame, an anti-blowing mechanism and an anti-detachment mechanism, wherein an installation frame is provided at the rear end of the external window frame and a side frame is provided on the side of the external window frame;

[0008] A limit shaft is vertically installed inside the side frame, a slider is sleeved on the outside of the limit shaft, and a return spring is sleeved on the outside of the slider.

[0009] The slider is provided with a toothed rack on its exterior;

[0010] The anti-blowing mechanism is used to prevent wind from blowing directly onto the surface of the external window frame.

[0011] The anti-detachment mechanism is used to prevent the external window frame and mounting frame from falling off.

[0012] Furthermore, the anti-blowing mechanism includes a first bevel gear, a second bevel gear, a connecting rod, a shaft, a side plate, a rotating shaft, and gears. A gear is provided on one side of the rack, a connecting rod is provided at the rear end of the gear, a shaft is provided at the front end of the gear, a first bevel gear is provided at the front end of the shaft, a second bevel gear is provided on the side of the first bevel gear near the external window frame, a rotating shaft is provided on one side of the second bevel gear, a side plate is provided on the outside of the rotating shaft, and an external wind shield is provided at the end of the rotating shaft.

[0013] Furthermore, the rotating shaft rotates inside the side plate.

[0014] Furthermore, the gear, after rotating, can drive the shaft to rotate, and the shaft can drive the first bevel gear to rotate.

[0015] Furthermore, the anti-detachment mechanism includes a front claw plate and a rear claw plate, with the rear claw plate located at the top of the rack and the front claw plate located near the front end of the mounting frame.

[0016] Furthermore, the thickness of the hind claw plate is less than the thickness of the front claw plate.

[0017] Furthermore, the rack and the rear claw plate are fixedly connected, and the rear claw plate and the front claw plate are fixedly connected.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the linkage of components such as the outer wind shield, rotating shaft, bevel gear, shaft, gear and rack, can respond to wind force in a timely manner. The outer wind shield rotates to change its angle, blocking the wind from blowing directly onto the external window frame, reducing the impact of wind on the interior of the cooling tower, ensuring stable airflow inside the cooling tower, maintaining cooling efficiency, and requiring no manual intervention. Under different wind intensities, the anti-blowing mechanism can automatically adjust the angle of the outer wind shield. According to the wind force, the gear drives the rack to move different distances, and the rotation angle of the outer wind shield changes accordingly, adapting to various wind environments and improving the operational stability of the cooling tower.

[0020] 2. This utility model uses front and rear claw plates to be fixedly connected to a rack. Driven by the rack, the claw plates move and embed themselves into the appropriate part of the cooling tower. Its special installation angle and movement method ensure a tight connection between the external window frame and the cooling tower, preventing the external window frame and installation frame from falling off due to external forces such as wind, thus ensuring structural safety. Furthermore, the movement of the rack drives the claw plates to move and embed themselves, eliminating the need for complex installation operations and additional fixing tools. At the same time, it provides a reliable fixing effect, reduces installation costs and maintenance difficulty, and improves installation efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A is a partial enlarged view of the anti-blow-off mechanism of this utility model;

[0023] Figure 3 This is a partial enlarged view (B) of the anti-blow-out mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the external windshield and related components of this utility model;

[0025] Figure 5 This is a schematic diagram of the anti-detachment mechanism and some anti-blow-off components of this utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0027] In the diagram: 1. Mounting frame; 2. External window frame; 3. Side frame; 4. External windshield; 5. First bevel gear; 6. Second bevel gear; 7. Front claw plate; 8. Rear claw plate; 9. Rack; 10. Connecting rod; 11. Shaft; 12. Side plate; 13. Rotating shaft; 14. Gear. Detailed Implementation

[0028] 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.

[0029] like Figures 1-6 As shown, a cooling tower louver anti-backflow structure includes: an external window frame 2, an anti-blowing mechanism and an anti-detachment mechanism. The rear end of the external window frame 2 is provided with an installation frame 1, and the side of the external window frame 2 is provided with a side frame 3.

[0030] A limit shaft is vertically installed inside the side frame 3, a slider is sleeved on the outside of the limit shaft, and a return spring is sleeved on the outside of the slider.

[0031] The slider is equipped with a toothed rack 9 on its exterior;

[0032] The anti-blowing mechanism is used to prevent wind from blowing directly onto the surface of the external window frame 2;

[0033] The anti-detachment mechanism is used to prevent the external window frame 2 and the mounting frame 1 from falling off.

[0034] The anti-blowing mechanism includes a first bevel gear 5, a second bevel gear 6, a connecting rod 10, a shaft 11, a side plate 12, a rotating shaft 13, and a gear 14. A gear 14 is provided on one side of the rack 9, a connecting rod 10 is provided at the rear end of the gear 14, a shaft 11 is provided at the front end of the gear 14, a first bevel gear 5 is provided at the front end of the shaft 11, a second bevel gear 6 is provided on the side of the first bevel gear 5 near the outer window frame 2, a rotating shaft 13 is provided on one side of the second bevel gear 6, a side plate 12 is provided on the outside of the rotating shaft 13, and an outer wind shield 4 is provided at the end of the rotating shaft 13.

[0035] The anti-detachment mechanism includes a front claw plate 7 and a rear claw plate 8. The rear claw plate 8 is located on the top of the rack 9, and the front claw plate 7 is located near the front end of the rear claw plate 8 close to the mounting frame 1.

[0036] refer to Figures 1 to 6 Example 1: In this example, the shaft 11 is replaced with a telescopic shaft. When the wind force is small, the telescopic shaft is in a shortened state, and the outer wind shield 4 can rotate slightly to effectively block the small wind force. When the wind force increases, the telescopic shaft automatically extends, increasing the lever arm of the shaft 11, so that the distance that the gear 14 drives the rack 9 to move increases, and the outer wind shield 4 rotates at a larger angle, which more effectively resists strong winds. At the same time, the telescopic shaft can adapt to the force transmission requirements under different working conditions, optimizing the performance of the anti-blowing mechanism. In terms of the anti-detachment mechanism, the material of the front claw plate 7 and the rear claw plate 8 is replaced with an elastic rubber material. When the claw plates of this material are embedded in the cooling tower adapter part, they can better fit the surface of the installation part, increase the friction, and further prevent the external window frame 2 from falling off. At the same time, the elasticity of the rubber material can buffer the structural vibration caused by the wind force and improve the overall structural stability.

[0037] refer to Figures 1 to 6Example 2: In this example, the gear 14 and rack 9 of the anti-blowing mechanism are improved by replacing them with a worm gear transmission structure. When the wind acts on the outer windshield 4, a series of transmissions drive the worm to rotate, and the worm then drives the worm wheel to rotate, thereby achieving an effect similar to gear and rack transmission, driving the related components to move. The worm gear transmission has a self-locking function, which can keep the outer windshield 4 stable at the current angle after the wind stops, preventing the angle from changing due to slight shaking, and better maintaining the windproof effect. For the anti-detachment mechanism, a magnetic component is added to the mounting frame 1. The front claw 7 and rear claw 8 are made of a material that can be attracted by magnets. When the claw moves to the mounting position, the magnetic component attracts the claw, further enhancing the connection stability. Even under harsh conditions such as extreme wind, it can effectively prevent the outer window frame 2 from falling off the mounting frame 1.

[0038] Working principle: When using the cooling tower louver anti-backflow structure, when the outside wind blows onto the surface of the outer window frame 2, the outer wind shield 4 is subjected to force, which drives the rotating shaft 13 to rotate. The rotating shaft 13 drives the second bevel gear 6 connected to it to rotate. The second bevel gear 6 meshes with the first bevel gear 5, causing the first bevel gear 5 to rotate. The first bevel gear 5 drives the shaft 11 to rotate. The front end of the shaft 11 is connected to the gear 14, which in turn causes the gear 14 to rotate. The gear 14 meshes with the rack 9, causing the rack 9 to move up and down. The rack 9 is connected to the slider, which is sleeved inside the side frame 3 and limited outside the shaft. It moves up under the action of the rack 9. At the same time, the return spring plays the role of resetting and reducing the impact force. When the rack 9 moves up, it drives the rear claw piece 8, which is fixedly connected to it, to move. The rear claw piece 8 drives the front claw piece 7 to move up. The front and rear claw pieces leave the top of the outer window frame 2 and move to a certain distance before embedding into the inner side of the cooling tower's adaptable installation part, thus achieving anti-backflow and stable installation.

[0039] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A cooling tower louver anti-backflow structure, comprising: An external window frame (2), an anti-blow-out mechanism and an anti-detachment mechanism, characterized in that an installation frame (1) is provided at the rear end of the external window frame (2), and a side frame (3) is provided on the side of the external window frame (2); The side frame (3) is vertically provided with a limit shaft inside, and a slider is sleeved on the outside of the limit shaft. A reset spring is sleeved on the outside of the slider. The slider is provided with a toothed rack (9) on its outside; The anti-blowing mechanism is used to prevent wind from blowing directly onto the surface of the external window frame (2); The anti-detachment mechanism is used to prevent the external window frame (2) and the mounting frame (1) from falling off.

2. The cooling tower louver anti-backflow structure according to claim 1, characterized in that, The anti-blowing mechanism includes a first bevel gear (5), a second bevel gear (6), a connecting rod (10), a shaft (11), a side plate (12), a rotating shaft (13), and a gear (14). A gear (14) is provided on one side of the rack (9). A connecting rod (10) is provided at the rear end of the gear (14). A shaft (11) is provided at the front end of the gear (14). A first bevel gear (5) is provided at the front end of the shaft (11). A second bevel gear (6) is provided on the side of the first bevel gear (5) near the outer window frame (2). A rotating shaft (13) is provided on one side of the second bevel gear (6). A side plate (12) is provided on the outside of the rotating shaft (13). An outer wind shield (4) is provided at the end of the rotating shaft (13).

3. The cooling tower louver anti-backflow structure according to claim 2, characterized in that, The rotating shaft (13) rotates inside the side plate (12).

4. The cooling tower louver anti-backflow structure according to claim 2, characterized in that, The gear (14) can drive the shaft (11) to rotate after rotation, and the shaft (11) can drive the first bevel gear (5) to rotate.

5. The cooling tower louver anti-backflow structure according to claim 1, characterized in that, The anti-detachment mechanism includes a front claw plate (7) and a rear claw plate (8). The rear claw plate (8) is provided on the top of the rack (9), and the front claw plate (7) is provided on the front end of the rear claw plate (8) near the mounting frame (1).

6. The cooling tower louver anti-backflow structure according to claim 5, characterized in that, The thickness of the hind claw plate (8) is less than the thickness of the front claw plate (7).

7. A cooling tower louver anti-backflow structure according to claim 5, characterized in that, The rack (9) and the rear claw plate (8) are fixedly connected.

8. A cooling tower louver anti-backflow structure according to claim 5, characterized in that, The rear claw plate (8) and the front claw plate (7) are fixedly connected.

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