Anti-freezing device for cooling tower coil pipe

Abstract

The utility model discloses an anti-freezing device for a cooling tower coil, and relates to the technical field of cooling towers, the anti-freezing device comprises a cooling tower shell and a device frame installed on one side of the cooling tower shell, a rotating rod rotatably connected with the device frame is arranged on one side of the top end of the device frame in a penetrating mode, and a plurality of shielding pieces are arranged on the device frame. A first rotating shaft is installed in the middle of the bottom of each shielding piece, a second rotating shaft is installed in the middle of the top end of each shielding piece, the top end of each second rotating shaft extends into the device frame and is provided with a worm wheel, and a plurality of worms matched with the worm wheels are installed on the rotating rod. According to the designed shielding pieces, the influence of external cold air on a coil pipe in the cooling tower can be reduced when the temperature is low, the shielding pieces can be rotated and inclined when the temperature is high, gaps are formed between the shielding pieces, external air can flow into a shell of the cooling tower, and the ventilation effect can be achieved while anti-freezing is achieved.

Description

An antifreeze device for cooling tower coils Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to an antifreeze device for cooling tower coils. Background Technology

[0002] A cooling tower is a device that uses the contact (direct or indirect) between air and water to cool water. Water is used as a circulating coolant, absorbing heat from a system and releasing it into the atmosphere, thereby lowering the temperature inside the tower and achieving the recycling of cooling water. Dry (low enthalpy) air is drawn into the cooling tower through the air inlet after being driven by a fan. High-temperature water molecules with high saturated vapor pressure flow towards the low-pressure air, while hot and humid (high enthalpy) water is sprayed into the tower from the water distribution system. When the water droplets come into contact with the air, on the one hand, due to the direct heat transfer between the air and water, and on the other hand, due to the pressure difference between the water vapor surface and the air, evaporation occurs under the action of pressure, carrying away the heat from the water, thereby achieving the purpose of cooling.

[0003] In current practical applications, when cooling tower coils are used in low outdoor temperatures, the cooling water inside the coils is prone to freezing, affecting performance. While antifreeze devices are used to heat the coils and prevent freezing, in hot weather, these devices can hinder heat dissipation, further reducing cooling efficiency. Therefore, this paper proposes an antifreeze device for cooling tower coils. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides an antifreeze device for cooling tower coils, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an antifreeze device for cooling tower coils, comprising a cooling tower shell and a device frame installed on one side of the cooling tower shell. A rotating rod rotatably connected to the top side of the device frame is provided through the top side. Multiple baffles are provided on the device frame. A first rotating shaft is installed at the bottom center of each baffle. A second rotating shaft is installed at the top center of each baffle. The top of each second rotating shaft extends into the interior of the device frame and is fitted with a worm gear. Multiple worms adapted to the worm gear are installed on the rotating rod.

[0006] As a further technical solution of this utility model, each of the worm gears meshes with a worm wheel, and the device frame is provided with an opening on the side away from the cooling tower shell, and each of the shielding plates is located inside the opening.

[0007] As a further technical solution of this utility model, the bottom of the opening on the device frame is provided with a plurality of first rotating holes adapted to the first rotating shaft, and the top of the opening on the device frame is provided with a plurality of second rotating holes adapted to the second rotating shaft. The shielding plate is rotatably connected to the device frame through the first rotating shaft and the second rotating shaft.

[0008] As a further technical solution of this utility model, the bottom of the opening on the device frame is provided with a plurality of first rotating holes adapted to the first rotating shaft, and the top of the opening on the device frame is provided with a plurality of second rotating holes adapted to the second rotating shaft. The shielding plate is rotatably connected to the device frame through the first rotating shaft and the second rotating shaft.

[0009] As a further technical solution of this utility model, the surface of the filter plate is uniformly provided with filter holes of the same size, the top of the filter plate is equipped with a first strip plate, and the size of the filter plate is adapted to the concave groove on the concave frame.

[0010] As a further technical solution of this utility model, a fixed frame is provided inside the device frame near the middle position, an electric heating wire is installed on the fixed frame, a second strip plate is installed at the top of the fixed frame, and a placement groove adapted to the fixed frame is provided on the device frame.

[0011] This utility model provides an antifreeze device for cooling tower coils, which has the following advantages compared with the prior art:

[0012] This design presents an antifreeze device for cooling tower coils. Utilizing the cooperation of worm gears and worm wheels, rotating the rotating shaft causes multiple worms on it to rotate together, thereby driving the worm wheel to rotate. The rotation of the worm wheel, through a second rotating shaft, drives the baffle plates to rotate. When the baffle plates are tilted on the device frame, gaps are created between them, allowing external air to enter the cooling tower shell through these gaps. When the baffle plates are arranged parallel to the device frame, it reduces the amount of external air entering the cooling tower shell. This design reduces the impact of cold air on the internal coils of the cooling tower at low temperatures. At higher temperatures, the baffle plates can be tilted to create gaps between each plate, allowing external air to flow into the cooling tower shell, achieving both antifreeze and ventilation effects. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall structure of an antifreeze device for cooling tower coils;

[0014] Figure 2 is a schematic diagram of the shielding plate structure of an antifreeze device for cooling tower coils;

[0015] Figure 3 is a schematic diagram of the electric heating wire structure of an antifreeze device for cooling tower coils;

[0016] Figure 4 is an enlarged structural schematic diagram of point A in Figure 3 for an antifreeze device used for cooling tower coils.

[0017] In the diagram: 1. Cooling tower shell; 2. Device frame; 3. Concave frame; 4. Filter plate; 5. First strip plate; 6. Concave groove; 7. Baffle plate; 8. Rotating rod; 9. First rotating shaft; 10. Second rotating shaft; 11. Fixing frame; 12. Electric heating wire; 13. Second strip plate; 14. Worm gear; 15. Worm. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4. This utility model provides a technical solution for an antifreeze device for cooling tower coils, including a cooling tower shell 1 and a device frame 2 installed on one side of the cooling tower shell 1. The installation position of the device frame 2 corresponds to the coil installation position inside the cooling tower shell 1. A rotating rod 8 is rotatably connected to the top side of the device frame 2. Multiple baffles 7 are provided on the device frame 2. A first rotating shaft 9 is installed at the bottom center of each baffle 7, and a second rotating shaft 10 is installed at the top center of each baffle 7. The top of each second rotating shaft 10 extends into the interior of the device frame 2 and is equipped with a worm gear 14. Multiple worms 15 adapted to the worm gear 14 are installed on the rotating rod 8. Each worm 15 meshes with the worm gear 14. The device frame 2 is located away from the cooling tower shell 1. The device frame 2 has an opening on its side, and each shielding plate 7 is located inside the opening. The bottom of the opening on the device frame 2 has multiple first rotating holes that are adapted to the first rotating shaft 9, and the top of the opening on the device frame 2 has multiple second rotating holes that are adapted to the second rotating shaft 10. The shielding plate 7 is rotatably connected to the device frame 2 through the first rotating shaft 9 and the second rotating shaft 10. When the rotating rod 8 is rotated, the worm gear 15 on the rotating rod 8 rotates together. Multiple worm gears 15 drive worm wheels 14 to rotate together. Multiple worm wheels 14 drive the shielding plate 7 to rotate through the second rotating shaft 10, so that gaps are created between the rotating and tilting shielding plates 7. External air can enter the interior of the cooling tower shell 1 through the gaps between the shielding plates 7, and the heat inside the cooling tower shell 1 can also be dissipated through this (this operation step is used when the outdoor temperature is too high).

[0020] A concave frame 3 is installed on the side of the device frame 2 away from the cooling tower shell 1. A concave groove 6 is provided on the concave frame 3, and a filter plate 4 is installed within the concave groove 6. The surface of the filter plate 4 has uniformly distributed filter holes of the same size. A first strip plate 5 is installed at the top of the filter plate 4. The size of the filter plate 4 is adapted to the concave groove 6 on the concave frame 3. The filter holes on the surface of the filter plate 4 can trap dust particles from the outside air. The first strip plate 5 can block the filter plate 4 at the top of the device frame 2. The gap between the filter plate 4 and the concave frame 3 is blocked to prevent dust from entering and accumulating. The filter plate 4 is inserted into the concave frame 3 for easy removal and replacement. A fixing frame 11 is set inside the device frame 2 near the middle position. An electric heating wire 12 is installed on the fixing frame 11. The electric heating wire 12 increases the temperature of the medium inside the coil tube to prevent freezing. A second strip plate 13 is installed at the top of the fixing frame 11. The device frame 2 is provided with a placement groove that matches the fixing frame 11, so that the fixing frame 11 can be easily removed from inside the device frame 2 for maintenance of the electric heating wire 12.

[0021] The working principle of this utility model is as follows: When the outdoor weather is cold, the shielding plate 7 is kept vertically parallel to the device frame 2 (as shown in Figure 1). The electric heating wire 12 is energized and heated to heat the coil inside the cooling tower shell 1. At this time, the shielding plate 7 forms a relatively closed space inside the device frame 2, which reduces heat loss and reduces the entry of external air. When the rotating rod 8 is rotated, the worm gear 15 on the rotating rod 8 rotates together. Multiple worm gears 15 drive the worm wheel 14 to rotate together. Multiple worm wheels 14 drive the shielding plate 7 to rotate through the second rotating shaft 10, so that gaps are created between the rotating and tilting shielding plates 7. External air can enter the interior of the cooling tower shell 1 through the gaps between the shielding plates 7, and the heat inside the cooling tower shell 1 can also be dissipated through this.

[0022] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. An antifreeze device for cooling tower coils, comprising a cooling tower shell (1) and a device frame (2) mounted on one side of the cooling tower shell (1), characterized in that, A rotating rod (8) is provided through one side of the top of the device frame (2) and is rotatably connected thereto. A plurality of shielding plates (7) are provided on the device frame (2). A first rotating shaft (9) is installed at the bottom middle position of each shielding plate (7). A second rotating shaft (10) is installed at the top middle position of each shielding plate (7). The top of each second rotating shaft (10) extends into the interior of the device frame (2) and is equipped with a worm gear (14). A plurality of worms (15) adapted to the worm gear (14) are installed on the rotating rod (8).

2. The antifreeze device for cooling tower coils according to claim 1, characterized in that, Each of the worm gears (15) meshes with a worm wheel (14), and the device frame (2) is provided with an opening on the side away from the cooling tower shell (1), and each of the shielding plates (7) is located inside the opening.

3. The antifreeze device for cooling tower coils according to claim 1, characterized in that, The bottom of the opening on the device frame (2) is provided with a plurality of first rotating holes adapted to the first rotating shaft (9), and the top of the opening on the device frame (2) is provided with a plurality of second rotating holes adapted to the second rotating shaft (10). The shielding plate (7) is rotatably connected to the device frame (2) through the first rotating shaft (9) and the second rotating shaft (10).

4. The antifreeze device for cooling tower coils according to claim 1, characterized in that, A concave frame (3) is installed on the side surface of the device frame (2) away from the cooling tower shell (1). A concave groove (6) is provided on the concave frame (3), and a filter plate (4) is provided in the concave groove (6) on the concave frame (3).

5. The antifreeze device for cooling tower coils according to claim 4, characterized in that, The filter plate (4) has filter holes of the same size evenly arranged on its surface. A first strip plate (5) is installed on the top of the filter plate (4). The size of the filter plate (4) is adapted to the concave groove (6) on the concave frame (3).

6. The antifreeze device for cooling tower coils according to claim 5, characterized in that, A fixed frame (11) is provided inside the device frame (2) near the middle position. An electric heating wire (12) is installed on the fixed frame (11). A second strip plate (13) is installed on the top of the fixed frame (11). A placement groove that is compatible with the fixed frame (11) is provided on the device frame (2).

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