Anti-freezing protection device for air-cooled heat exchanger

Abstract

The utility model relates to the technical field of heat exchanger anti-freezing protection, and discloses an air-cooled heat exchanger anti-freezing protection device which comprises a supporting plate, a steam pipe is rotationally connected to the bottom of the inner surface of the supporting plate, a fluted disc is fixedly connected to the right side of the outer surface of the steam pipe, and a rack is meshed with the bottom of the outer surface of the fluted disc. The outer surface of the rack is slidably connected with the bottom of the outer surface of the supporting plate, the outer surface of the steam pipe is fixedly connected with a spray head, the outer surface of the steam pipe is fixedly connected with a shielding cover, and the outer surface of the shielding cover is rotatably connected with the inner surface of the supporting plate. According to the utility model, through the synergistic effect of the shielding cover and the protective cover, when the steam pipe does not work, the spray head can be completely wrapped, external impurities are effectively prevented from entering, the spray head is prevented from being exposed outside to be damaged by collision, corrosion and the like, the service life of the spray head is greatly prolonged, and long-term stable operation of the anti-freezing protection function of the heat exchanger is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger antifreeze protection technology, and in particular to an antifreeze protection device for an air-cooled heat exchanger. Background Technology

[0002] When ice or frost forms on the surface of a heat exchanger, it increases thermal resistance and reduces heat exchange efficiency. Because ice and frost have much lower thermal conductivity than metals, heat transfer is hindered, preventing the heat exchanger from effectively transferring heat from the hot fluid to the cold fluid, thus affecting the system's heat dissipation or heating performance. Anti-freeze protection devices can prevent ice and frost from forming on the heat exchanger surface, ensuring it maintains good heat exchange performance and sustains the system's normal operating parameters.

[0003] There are many existing antifreeze protection devices, one of which uses steam heating for protection. In use, steam is usually delivered into the spraying device, which then sprays the steam onto the surface of the heat sink fins and heat pipes to heat them and prevent the heat sink fins from freezing in low-temperature environments, thus achieving the antifreeze protection function of the air-cooled heat exchanger.

[0004] Considering that the nozzles in the antifreeze protection device of traditional air-cooled heat exchangers are exposed to the outside for a long time, they are easily affected by the impact and corrosion of external debris, which can lead to nozzle blockage and damage. This affects the steam spraying effect, reduces the performance of the antifreeze protection device, and makes it impossible to provide uniform heating to the heat dissipation fins continuously and stably. In severe cases, it can even cause the entire antifreeze protection function to fail. Therefore, an antifreeze protection device for air-cooled heat exchangers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an antifreeze protection device for air-cooled heat exchangers. It aims to solve the problem that in the existing technology, the nozzles of traditional air-cooled heat exchangers are exposed to the outside for a long time, making them susceptible to impact and corrosion from external debris, resulting in blockage and damage. This leads to poor steam spraying effect, affects the performance of the antifreeze protection device, and makes it impossible to stably and evenly heat the heat dissipation fins. In severe cases, the antifreeze function fails.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an anti-freeze protection device for an air-cooled heat exchanger, comprising a support plate, a steam pipe rotatably connected to the bottom of the inner surface of the support plate, a toothed disc fixedly connected to the right side of the outer surface of the steam pipe, a rack meshing with the bottom of the outer surface of the toothed disc, the outer surface of the rack slidably connected to the bottom of the outer surface of the support plate, a nozzle fixedly connected to the outer surface of the steam pipe, a shield fixedly connected to the outer surface of the steam pipe, the outer surface of the shield rotatably connected to the inner surface of the support plate, a protective cover contacting the top of the outer surface of the shield, the outer surface of the protective cover fixedly connected to the bottom of the outer surface of the support plate, and a heat exchange assembly provided on the outer surface of the support plate;

[0007] The heat exchange assembly includes an inlet pipe, the outer surface of which is fixedly connected to the top of the outer surface of the support plate, a return pipe is fixedly connected to the bottom of the outer surface of the support plate, and heat dissipation fins are fixedly connected to the middle of the inner surface of the support plate.

[0008] As a further description of the above technical solution:

[0009] A hinge rod is hinged to the right side of the inner surface of the rack, and an operating element is hinged to the top of the outer surface of the hinge rod. The outer surface of the operating element is elastically connected to the middle of the inner surface of the support plate by a spring, and the outer surface of the operating element is slidably connected to the middle of the inner surface of the support plate.

[0010] As a further description of the above technical solution:

[0011] A guide post is fixedly connected to the middle of the inner surface of the support plate, and the outer surface of the guide post penetrates and is slidably connected to the inner surface of the operating component.

[0012] As a further description of the above technical solution:

[0013] An operating plate is fixedly connected to the top of the outer surface of the operating component, and a locking block is rotatably connected to the middle of the outer surface of the support plate. The outer surface of the locking block is engaged with the top of the outer surface of the operating plate.

[0014] As a further description of the above technical solution:

[0015] The steam pipe is provided in two sets, the nozzle is provided in multiple sets, and the hinge rod is provided in two sets.

[0016] As a further description of the above technical solution:

[0017] A steam connection pipe is fixedly connected to the right side of the outer surface of the steam pipe.

[0018] As a further description of the above technical solution:

[0019] The bottom of the outer surface of the shield is inserted into the bottom of the inner surface of the support plate, and the top of the outer surface of the shield and the top of the protective cover are arc-shaped.

[0020] As a further description of the above technical solution:

[0021] The outer surface of the shield is fixedly connected to a partition, and the outer surface of the partition is slidably connected to the inner surface of the shield.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the shield and the protective cover work together to completely enclose the nozzle when the steam pipe is not in operation, effectively preventing external debris from entering and avoiding damage such as collision and corrosion to the nozzle. This greatly extends the service life of the nozzle and ensures the long-term stable operation of the heat exchanger's antifreeze protection function.

[0024] 2. In this utility model, through the coordinated action of components such as the control panel, control parts, hinge rod, rack and pinion, the user can easily control the rotation of the two sets of steam pipes by simply pressing or pulling the control panel, so that the nozzles can flip out of the protective cover to work, making the whole operation process convenient, stable and reliable. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of an antifreeze protection device for an air-cooled heat exchanger proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the operating components of an antifreeze protection device for an air-cooled heat exchanger proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the nozzle flip-out structure of an antifreeze protection device for an air-cooled heat exchanger proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the nozzle retraction structure of an antifreeze protection device for an air-cooled heat exchanger proposed in this utility model.

[0029] Legend:

[0030] 1. Support plate; 2. Heat exchange assembly; 201. Liquid inlet pipe; 202. Return pipe; 203. Heat dissipation fins; 3. Control panel; 4. Control components; 5. Hinge rod; 6. Steam connection pipe; 7. Gear disc; 8. Steam pipe; 9. Protective cover; 10. Rack; 11. Guide column; 12. Spring; 13. Locking block; 14. Nozzle; 15. Shielding cover. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of an anti-freeze protection device for an air-cooled heat exchanger, comprising a support plate 1. A steam pipe 8 is rotatably connected to the bottom inner surface of the support plate 1, allowing the steam pipe 8 to rotate at a designated position along the inner surface of the support plate 1. A toothed disc 7 is fixedly connected to the right side of the outer surface of the steam pipe 8, and a rack 10 is engaged with the bottom outer surface of the toothed disc 7, allowing the steam pipe 8 to rotate due to the engagement of the toothed disc 7 and the rack 10. The outer surface of the rack 10 is slidably connected to the bottom outer surface of the support plate 1, allowing the rack 10 to move laterally along a designated position on the upper part of the support plate 1, while ensuring that the rack 10 is always engaged with the toothed disc 7. A nozzle 14 is fixedly connected to the outer surface of the steam pipe 8, and the nozzle 14 is used to spray steam from the steam pipe... Steam is ejected from the steam pipe 8. A shield 15 is fixedly connected to the outer surface of the steam pipe 8. The shield 15 can protect the steam pipe 8 and the nozzle 14 to prevent external debris from entering. At the same time, when the steam pipe 8 is not working, it prevents the nozzle 14 from being exposed and damaged. The outer surface of the shield 15 is rotatably connected to the inner surface of the support plate 1, so that when the steam pipe 8 rotates, the shield 15 can rotate with it. The top of the outer surface of the shield 15 is in contact with the protective cover 9, so that when the shield 15 and the protective cover 9 are closed, the nozzle 14 can be completely wrapped to prevent the nozzle 14 from being damaged. The outer surface of the protective cover 9 is fixedly connected to the bottom of the outer surface of the support plate 1, and the bottom of the outer surface of the support plate 1 provides a fixed support for the protective cover 9.

[0033] Reference Figure 1 - Figure 2The outer surface of the support plate 1 is provided with a heat exchange component 2, which is the core part of realizing air-cooled heat exchange. Through this component, heat exchange is realized to meet the actual heat exchange requirements. The heat exchange component 2 includes a liquid inlet pipe 201, the outer surface of which is fixedly connected to the top of the outer surface of the support plate 1. The liquid inlet pipe 201 is used to introduce the liquid that needs to be heat exchanged into the heat exchange component 2, ensuring that the liquid can smoothly enter the heat exchange working area. The bottom of the outer surface of the support plate 1 is fixedly connected with a return pipe 202, which is used to return the liquid after heat exchange to complete the heat exchange cycle process, so that the entire heat exchange system can work continuously and stably. The middle of the inner surface of the support plate 1 is fixedly connected with a heat dissipation fin 203, which can increase the heat exchange area and improve the heat exchange efficiency, so that the liquid that needs to be heat exchanged can transfer heat more fully with the outside air.

[0034] Reference Figure 1 - Figure 2 A hinge rod 5 is hinged to the right side of the inner surface of the rack 10, allowing the rack 10 to move laterally when the hinge rod 5 moves. An operating member 4 is hinged to the top of the outer surface of the hinge rod 5, allowing the operating member 4 to move both sets of hinge rods 5 together when it moves vertically. The outer surface of the operating member 4 is elastically connected to the middle of the inner surface of the support plate 1 via a spring 12. The spring 12 provides elastic restoring force to the operating member 4. When the user removes the operating force on the operating member 4, the operating member 4 can automatically reset under the action of the spring 12, facilitating the next operation. The outer surface of the operating member 4 is slidably connected to the middle of the inner surface of the support plate 1. The slidable connection between the operating member 4 and the support plate 1 ensures the stability of the operating member 4 during movement, allowing it to move along a specific track. There are two sets of hinge rods 5, which can more stably drive the two sets of racks 10 to move simultaneously, ensuring the synchronization of control over the two sets of steam pipes 8, allowing the steam pipes 8 to rotate evenly, and ensuring consistent spraying effect of the nozzles 14.

[0035] Reference Figure 1 - Figure 2A guide post 11 is fixedly connected to the middle of the inner surface of the support plate 1. The guide post 11 provides guidance for the movement of the operating member 4, ensuring that the operating member 4 can move stably along a straight line and avoiding deviation or shaking during the movement, which would affect the control accuracy of the rack 10. The outer surface of the guide post 11 penetrates and slides through the inner surface of the operating member 4, further enhancing the stability and accuracy of the movement of the operating member 4, so that the operating member 4 can reliably transmit the operating force to the hinge rod 5. An operating plate 3 is fixedly connected to the top of the outer surface of the operating member 4, which facilitates user operation. The user can control the movement of the operating component 4 by pressing or pulling the operating plate 3, providing a convenient operating part for the user. The outer surface of the support plate 1 is rotatably connected to the middle of the outer surface of the support plate 1. The locking block 13 can lock the operating plate 3 when needed, so that the operating component 4 is kept in a specific position. This makes it convenient to maintain the state after the steam pipe 8 is adjusted to the appropriate position. The outer surface of the locking block 13 is locked with the top of the outer surface of the operating plate 3, which can lock the position of the operating plate 3, thereby locking the position of the operating component 4, ensuring that the steam pipe 8 is kept at the required angle when working.

[0036] Reference Figure 2 - Figure 4 The steam pipe 8 is provided in two sets, which can heat the heat dissipation fins 203 from different positions, making the heating more uniform and improving the antifreeze protection effect. The nozzle 14 is provided in multiple sets, which can increase the spray range of steam and ensure that all parts of the heat dissipation fins 203 can be covered by steam, further improving the uniformity and effectiveness of heating. A steam connecting pipe 6 is fixedly connected to the right side of the outer surface of the steam pipe 8. The steam connecting pipe 6 is used to connect to the external steam delivery pipe, so as to facilitate the introduction of steam into the steam pipe 8 and provide a steam source for the nozzle 14.

[0037] Reference Figure 3 - Figure 4 The bottom of the outer surface of the shield 15 is inserted into the bottom of the inner surface of the support plate 1, so that when the shield 15 rotates clockwise, the bottom of the shield 15 can be retracted into the support plate 1. The top of the outer surface of the shield 15 and the top of the protective cover 9 are set in an arc shape, so that when the shield 15 rotates counterclockwise, it can merge with the protective cover 9 into an arc shape, which can more evenly distribute external forces and reduce the risk of damage caused by collision or external impact, thereby providing more reliable protection for the nozzle. The outer surface of the shield 15 is fixedly connected to the partition 16, so that when the shield 15 rotates, it can drive the partition 16 to move in an arc shape at the same time. When the nozzle 14 is turned out, the partition 16 can prevent foreign objects from entering the interior of the protective cover 9. The outer surface of the partition 16 is slidably connected to the inner surface of the protective cover 9, so that the partition 16 can always move in an arc shape at a designated position inside the protective cover 9.

[0038] Working principle: When it is necessary to heat the heat dissipation fins 203 and the heat pipe, first connect the steam delivery pipe to the steam connection pipe 6 on the steam pipe 8, and then move the operating plate 3 downward, so that the operating plate 3 drives the operating component 4 to move downward along the designated position inside the support plate 1. When the operating component 4 moves downward, it will simultaneously drive the two sets of hinge rods 5 to move, and drive the two sets of racks 10 to move outward at the same time. When the two sets of racks 10 move outward laterally, due to the meshing of the toothed discs 7 on the two sets of steam pipes 8, the two sets of steam pipes 8 will simultaneously rotate inward, so that the nozzles 14 on the two sets of steam pipes 8 will flip out of the protective cover 9, and then start to deliver steam, so that the steam will be sprayed obliquely to the bottom of the heat dissipation fins 203 through the nozzles 14 on the steam pipes 8, thereby heating the heat dissipation fins 203. This can effectively prevent the heat dissipation fins 203 from freezing in low temperature environment and realize the anti-freeze protection function of the air-cooled heat exchanger.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 freeze protection device for an air-cooled heat exchanger, comprising a support plate (1), characterized in that: A steam pipe (8) is rotatably connected to the bottom of the inner surface of the support plate (1). A toothed disc (7) is fixedly connected to the right side of the outer surface of the steam pipe (8). A rack (10) meshes with the bottom of the outer surface of the rack (7). The outer surface of the rack (10) is slidably connected to the bottom of the outer surface of the support plate (1). A nozzle (14) is fixedly connected to the outer surface of the steam pipe (8). A shield (15) is fixedly connected to the outer surface of the steam pipe (8). The outer surface of the shield (15) is rotatably connected to the inner surface of the support plate (1). A protective cover (9) is contacted and connected to the top of the outer surface of the shield (15). The outer surface of the protective cover (9) is fixedly connected to the bottom of the outer surface of the support plate (1). A heat exchange assembly (2) is provided on the outer surface of the support plate (1). The heat exchange assembly (2) includes an inlet pipe (201), the outer surface of which is fixedly connected to the top of the outer surface of the support plate (1), a return pipe (202) is fixedly connected to the bottom of the outer surface of the support plate (1), and a heat dissipation fin (203) is fixedly connected to the middle of the inner surface of the support plate (1).

2. The anti-freeze protection device for an air-cooled heat exchanger according to claim 1, characterized in that: A hinge rod (5) is hinged to the right side of the inner surface of the rack (10), and an operating member (4) is hinged to the top of the outer surface of the hinge rod (5). The outer surface of the operating member (4) is elastically connected to the middle of the inner surface of the support plate (1) through a spring (12), and the outer surface of the operating member (4) is slidably connected to the middle of the inner surface of the support plate (1).

3. The anti-freeze protection device for an air-cooled heat exchanger according to claim 2, characterized in that: A guide post (11) is fixedly connected to the middle of the inner surface of the support plate (1), and the outer surface of the guide post (11) is slidably connected to the inner surface of the operating member (4).

4. The anti-freeze protection device for an air-cooled heat exchanger according to claim 2, characterized in that: An operating plate (3) is fixedly connected to the top of the outer surface of the operating component (4), and a locking block (13) is rotatably connected to the middle of the outer surface of the support plate (1). The outer surface of the locking block (13) is engaged with the top of the outer surface of the operating plate (3).

5. The anti-freeze protection device for an air-cooled heat exchanger according to claim 2, characterized in that: The steam pipe (8) is provided in two sets, the nozzle (14) is provided in multiple sets, and the hinge rod (5) is provided in two sets.

6. The antifreeze protection device for an air-cooled heat exchanger according to claim 1, characterized in that: A steam connection pipe (6) is fixedly connected to the right side of the outer surface of the steam pipe (8).

7. The anti-freeze protection device for an air-cooled heat exchanger according to claim 2, characterized in that: The bottom of the outer surface of the shield (15) is inserted into the bottom of the inner surface of the support plate (1), and the top of the outer surface of the shield (15) and the top of the protective cover (9) are set in an arc shape.

8. The anti-freeze protection device for an air-cooled heat exchanger according to claim 1, characterized in that: The outer surface of the shield (15) is fixedly connected to a partition (16), and the outer surface of the partition (16) is slidably connected to the inner surface of the protective cover (9).

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