A cooling tower anti-icing device

Abstract

The utility model discloses a cooling tower anti -icing device, including the cooling tower body, the fixed frame is fixedly installed through the air inlet on the cooling tower body, the movable frame is equipped in the fixed frame, the protective net is fixedly installed in the movable frame, the movable slot is equipped in the fixed frame inner wall, a plurality of slide bars are equipped in the movable slot, and the movable plate is slidably equipped on each slide bar through the elastic mechanism, and each movable plate end part is fixedly connected with the movable frame, a horizontal shaft and two vertical axes are equipped in the movable slot, and two vertical axes are connected with the horizontal shaft through the rotating mechanism. The utility model discloses through the cam and spring linkage mechanism periodicity produces the vibration, initiatively breaks the water drop condensation on the surface of the protective net, prevents the ice layer formation, and compared with the passive heating mode is more energy -conserving.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a cooling tower anti-icing device. Background Technology

[0002] In the field of cooling tower winter operation, traditional anti-icing technologies face numerous technical bottlenecks, severely restricting equipment energy efficiency and reliability. Existing heating devices (such as electric heat tracing and steam coils) can inhibit icing through temperature rise, but they suffer from high energy consumption, complex maintenance, and functional limitations (they can only prevent icing, not remove existing ice layers, requiring manual intervention during shutdown). Mechanical scraping solutions, due to their rigid contact de-icing method, are prone to damaging the protective mesh or grid structure, resulting in insufficient reliability.

[0003] Traditional devices also suffer from significant functional limitations, mostly targeting only single areas such as air inlet louvers, lacking coordinated protection designs for related areas such as protective mesh and packing layers. Vibration solutions relying on independent components like electromagnetic vibrators suffer from drawbacks such as complex wiring, unadjustable vibration amplitude (prone to equipment fatigue damage), and poor environmental adaptability (difficult to cope with extreme conditions such as sudden temperature drops or strong winds). Furthermore, some solutions (such as antifreeze addition) may contaminate the circulating water system, increasing water treatment costs and environmental risks. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cooling tower anti-icing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cooling tower anti-icing device includes a cooling tower body. A fixed frame is fixedly installed on the cooling tower body through an air inlet. A movable frame is provided inside the fixed frame, and a protective net is fixedly installed inside the movable frame. A movable groove is provided on the inner wall of the fixed frame, and multiple sliding rods are provided in the movable groove. A movable plate is slidably fitted on each sliding rod through an elastic mechanism. The end of each movable plate is fixedly connected to the movable frame. A horizontal shaft and two vertical shafts are provided in the movable groove. The two vertical shafts are connected to the horizontal shaft through a rotating mechanism, and the two vertical shafts are fitted with movable plates through a pressing mechanism. An equipment groove is provided on the outer wall of the fixed frame, and a fixed net is fixedly installed on the outer wall of the fixed frame. A power mechanism connected to the horizontal shaft is fixedly installed on the fixed net.

[0006] Preferably, the elastic mechanism includes a spring sleeved on the outside of the slide bar, with both ends of the spring connected to the inner wall of the movable groove and the outer wall of the movable plate, respectively.

[0007] Preferably, the rotating mechanism includes a first gear fixedly mounted on a horizontal shaft, and a second gear meshing with the first gear fixedly mounted on a vertical shaft.

[0008] Preferably, the extrusion mechanism includes a cam fixedly mounted on a vertical shaft, and the movable plate is provided with an arc-shaped protrusion corresponding to the cam.

[0009] Preferably, the power mechanism includes a drive motor fixedly mounted on a fixed net, and the output shaft of the drive motor is fixedly connected to a horizontal shaft via a coupling.

[0010] Preferably, the bottom wall of the fixed frame is provided with a slope, and the slope is provided on the front of the fixed frame.

[0011] The beneficial effects of this utility model are: The cam and spring linkage mechanism generates periodic vibrations to actively break up water droplets condensing on the surface of the protective net, preventing ice formation. This method is more energy-efficient than passive heating.

[0012] The device is integrated into the air inlet fixing frame without changing the structure of the cooling tower itself. It is suitable for various types of existing cooling towers, such as counter-flow and cross-flow. The protective net has both de-icing and impurity filtering functions, eliminating the need for additional filtration devices.

[0013] The impact force generated by the vibration can simultaneously clean up the dust and debris trapped by the protective net, reducing the frequency of manual maintenance.

[0014] The ramp guides condensate to drain quickly, preventing it from accumulating and freezing inside the fixed frame; the movable frame blocks the U-shaped movable groove to prevent moisture from entering the mechanical transmission components and avoid internal freezing and jamming. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a cooling tower anti-icing device proposed in this utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the middle component; Figure 3 for Figure 1 A schematic diagram of the vertical section structure; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A; Figure 5 for Figure 2 Another vertical section diagram; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0016] In the diagram: 1 Cooling tower body, 2 Fixed frame, 3 Movable frame, 4 Protective net, 5 Slope, 6 Movable groove, 7 Slide rod, 8 Movable plate, 9 Spring, 10 Vertical shaft, 11 Cam, 12 Horizontal shaft, 13 First gear, 14 Second gear, 15 Equipment groove, 16 Fixed net, 17 Drive motor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them.

[0018] With reference to Figures 1-6 , an anti-icing device for a cooling tower comprises a cooling tower body 1. A fixing frame 2 is fixedly installed on the cooling tower body 1 through an air inlet. A movable frame 3 is arranged inside the fixing frame 2, and a protective net 4 is fixedly arranged in the movable frame 3. The cooling tower body 1 is a mature product in the prior art and does not belong to the core technical feature of the present solution, so the specific structure and working principle will not be elaborated, and reference may be made to the disclosure in the prior art.

[0019] Air enters the cooling tower body 1 through the protective net 4, and the protective net 4 functions to intercept impurities.

[0020] The inner wall of the fixing frame 2 is provided with a movable groove 6, a plurality of sliding rods 7 are arranged in the movable groove 6, each sliding rod 7 is slidably sleeved with a movable plate 8 through an elastic mechanism, and the end of each movable plate 8 is fixedly connected with the movable frame 3. One transverse shaft 12 and two vertical shafts 10 are arranged in the movable groove 6, the two vertical shafts 10 are both connected with the transverse shaft 12 through a rotating mechanism, the two vertical shafts 10 are both provided with a movable plate 8 in a matching manner through an extrusion mechanism, the outer wall of the fixing frame 2 is provided with an equipment groove 15, the outer wall of the fixing frame 2 is fixedly provided with a fixing net 16, and a power mechanism connected with the transverse shaft 12 is fixedly arranged on the fixing net 16.

[0021] The elastic mechanism includes a spring 9 sleeved outside the sliding rod 7, and two ends of the spring 9 are respectively connected with the inner wall of the movable groove 6 and the outer wall of the movable plate 8. The elastic potential energy provided by the above-mentioned spring 9 can, after the movable plate 8 squeezes the spring 9 and the movable plate 8 no longer squeezes the spring 9, rely on the movable plate 8 to drive the movable frame 3 and the protective net 4 to move and reset, and the movable plate 8 impacts the inner wall of the movable groove 6 to generate vibration.

[0022] The movable frame 3 functions to shield the movable groove 6. The movable groove 6 as shown in the figure is in a loop shape, which can prevent water and other impurities from entering the movable groove 6.

[0023] The rotating mechanism includes a first gear 13 fixedly arranged on the transverse shaft 12, and a second gear 14 meshed with the first gear 13 is fixedly arranged on the vertical shaft 10. The first gear 13 and the second gear 14 as shown in the figure are both bevel gears, which are in vertical meshing, realizing the power transmission of the drive motor 17, and can realize the synchronous rotation of the two vertical shafts 10 when the drive motor 17 drives the transverse shaft 12 to rotate.

[0024] The pressing mechanism includes a cam 11 fixedly mounted on the vertical shaft 10, and an arc-shaped protrusion on the movable plate 8 corresponding to the cam 11. By relying on the cam 11 and the arc-shaped protrusion, the movable plate 8 can be reciprocated to press, causing it to move on the slide rod 7 and compress the spring 9.

[0025] The power mechanism includes a drive motor 17 fixedly mounted on a fixed mesh 16, and the output shaft of the drive motor 17 is fixedly connected to the horizontal shaft 12 via a coupling. The drive motor 17 is stably mounted in the equipment trough 15 by the fixed mesh 16, and the mesh openings on the fixed mesh 16 allow the drive motor 17 to dissipate heat during operation.

[0026] The bottom wall of the fixed frame 2 is provided with a ramp 5, which is located on the front of the fixed frame 2. The ramp 5 facilitates the sliding of shaken water droplets or ice fragments.

[0027] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0028] In use, after the drive motor 17 starts, it drives the horizontal shaft 12 to rotate through the coupling. The first gear 13 on the horizontal shaft 12 and the second gear 14 on the vertical shaft 10 are both bevel gears that mesh vertically, driving the two vertical shafts 10 to rotate synchronously. The cam 11 on the vertical shaft 10 rotates with the shaft. When the protruding part of the cam 11 contacts the arc-shaped protrusion of the movable plate 8, it pushes the movable plate 8 to slide along the slide rod 7 and compresses the spring 9. When the protruding part of the cam 11 rotates away, the elastic potential energy of the spring 9 is released, causing the movable plate 8 to quickly return to its original position and impact the inner wall of the movable groove 6, generating vibration. The movable plate 8 transmits the vibration to the protective net 4 through the fixedly connected movable frame 3, shaking off the water droplets or thin ice attached to the protective net 4 and preventing them from freezing into an ice layer. The slope 5 of the bottom wall of the fixed frame 2 guides the dripping water or ice fragments to slide down, preventing secondary freezing.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling tower anti-icing device, comprising a cooling tower body (1), characterized in that, A fixed frame (2) is fixedly installed on the cooling tower body (1) through the air inlet. A movable frame (3) is provided inside the fixed frame (2). A protective net (4) is fixedly installed inside the movable frame (3). A movable groove (6) is provided on the inner wall of the fixed frame (2). Multiple sliding rods (7) are provided in the movable groove (6). A movable plate (8) is slidably sleeved on each sliding rod (7) through an elastic mechanism. The end of each movable plate (8) is fixedly connected to the movable frame (3). A horizontal shaft (12) and two vertical shafts (10) are provided in the movable groove (6). The two vertical shafts (10) are connected to the horizontal shaft (12) through a rotating mechanism. The two vertical shafts (10) are fitted with movable plates (8) through a pressing mechanism. An equipment groove (15) is provided on the outer wall of the fixed frame (2). A fixed net (16) is fixedly installed on the outer wall of the fixed frame (2). A power mechanism connected to the horizontal shaft (12) is fixedly installed on the fixed net (16).

2. The cooling tower anti-icing device according to claim 1, characterized in that, The elastic mechanism includes a spring (9) sleeved on the outside of the slide bar (7), with the two ends of the spring (9) connected to the inner wall of the movable groove (6) and the outer wall of the movable plate (8), respectively.

3. The cooling tower anti-icing device according to claim 2, characterized in that, The rotating mechanism includes a first gear (13) fixedly mounted on the horizontal shaft (12), and a second gear (14) fixedly mounted on the vertical shaft (10) meshing with the first gear (13).

4. A cooling tower anti-icing device according to claim 3, characterized in that, The extrusion mechanism includes a cam (11) fixedly mounted on a vertical shaft (10), and the movable plate (8) is provided with an arc-shaped protrusion corresponding to the cam (11).

5. A cooling tower anti-icing device according to claim 4, characterized in that, The power mechanism includes a drive motor (17) fixedly mounted on a fixed net (16), and the output shaft of the drive motor (17) is fixedly connected to the horizontal shaft (12) via a coupling.

6. A cooling tower anti-icing device according to claim 5, characterized in that, The bottom wall of the fixed frame (2) is provided with a ramp (5), and the ramp (5) is located on the front of the fixed frame (2).

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