A high efficiency heat dissipation device for dry-type power transformer

Abstract

The utility model discloses a high-efficiency heat dissipation device for a dry-type power transformer, belonging to the technical field of heat dissipation of power transformers, comprising a heat dissipation shell, a transformer body is arranged on the inner side of the heat dissipation shell, the heat dissipation shell and the transformer body are connected via a fixed component, a refrigeration component is arranged on the inner side of the heat dissipation shell and below the transformer body, the heat dissipation shell and the refrigeration component are connected via a movable component; the utility model provides a drying and sealing device, so that the device can prevent external moisture from contacting the transformer body through the cooperation of structures such as a silica gel desiccant and a mesh tube when needed, and the device can increase the ventilation speed through the cooperation of fan blades and a motor when needed, and in addition, the device can close the dustproof net component through a closing plate when needed, thereby preventing ventilation work from being carried out, thereby improving the working capacity of the device.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation of power transformers, and in particular relates to a high-efficiency heat dissipation device for dry-type power transformers. Background Art

[0002] The power transformer is the core equipment for converting electric energy during the operation of the power system, and plays a vital role in the stable operation of the power system and the quality of electric energy.

[0003] Chinese patent application No. 201921280835.1 discloses a dry-type power transformer heat dissipation device, including a heat dissipation shell, the heat dissipation shell is a hollow structure, and both ends of the heat dissipation shell are provided with a first opening connected to the outside, both sides of the heat dissipation shell are provided with a cover matched with the first opening, a transformer body is arranged in the heat dissipation shell, an auxiliary fixing mechanism matched with the transformer body is arranged on the inner wall of one side of the heat dissipation shell, and a moving mechanism is arranged on the inner wall of the other side of the heat dissipation shell, and a heat dissipation mechanism is arranged on the moving mechanism. The utility model can stably fix the transformer body and can reciprocately dissipate heat to the transformer body.

[0004] 1. The above-mentioned disclosed patent has the problem that it cannot prevent external moisture from contacting the transformer body when needed, cannot increase the ventilation speed when needed, and cannot prevent ventilation work when needed, thereby reducing the working capacity of the device; 2. The above-mentioned disclosed patent has the problem that it is inconvenient to move and inconvenient to adjust the height of the structure such as the heat dissipation shell, thereby reducing the practicality of the device. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a high-efficiency heat dissipation device for a dry-type power transformer, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency heat dissipation device for a dry-type power transformer, comprising a heat dissipation shell, a transformer body is arranged on the inner side of the heat dissipation shell, the heat dissipation shell and the transformer body are connected by a fixed component, a refrigeration component is arranged on the inner side of the heat dissipation shell and below the transformer body, the heat dissipation shell and the refrigeration component are connected by a movable component, dustproof net components are arranged on both sides of the heat dissipation shell, the heat dissipation shell and the two dustproof net components are connected by two dry sealing devices, and a movable lifting device is installed at the bottom of the heat dissipation shell.

[0007] Preferably, the drying and sealing device includes a connecting frame, a blocking block, a mesh cylinder, a silica gel desiccant and a sealing assembly. The heat dissipation housing and the two dustproof net assemblies are connected via two connecting frames. A mesh cylinder is installed on the inner side of the connecting frame. The inner side of the mesh cylinder is filled with silica gel desiccant. A blocking block is threadedly installed at the top of the connecting frame and above the silica gel desiccant. A sealing assembly is installed on the side of the mesh cylinder close to the dustproof net assembly.

[0008] Preferably, the drying and sealing device further comprises fan blades and a motor, the motor is installed on one side of the mesh cylinder close to the transformer body, and the fan blades are installed on the outer side of the motor output end.

[0009] Preferably, the closing assembly comprises an electric telescopic rod and a closing plate, a closing plate is provided between the mesh tube and the dustproof net assembly, and an electric telescopic rod is installed between the mesh tube and the closing plate.

[0010] Preferably, the mobile lifting device includes a base and brake wheels, the base is arranged below the heat dissipation shell, and a plurality of brake wheels are installed below the base.

[0011] Preferably, the mobile lifting device further comprises an electric lifting rod and a heat-conducting aluminum rod, the heat dissipation shell and the base are connected via the electric lifting rod, and a plurality of heat-conducting aluminum rods are installed at the bottom of the heat dissipation shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model sets a drying and sealing device, so that the device can prevent external moisture from contacting the transformer body through the cooperation of structures such as silica gel desiccant and mesh tube when needed, and the device can increase the ventilation speed through the cooperation of fan blades and motor when needed. In addition, the device can close the dust net assembly through the closing plate when needed, thereby preventing ventilation work, thereby improving the working capacity of the device.

[0014] 2. The utility model is provided with a mobile lifting device, so that the staff can move the position of the device through each brake wheel when needed, and the device can adjust the height of the heat dissipation shell through the electric lifting rod when needed. In addition, the heat-conducting aluminum rod can assist in heat dissipation when there is a gap between the heat dissipation shell and the base, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cutaway view of the utility model;

[0017] Figure 3It is a three-dimensional cutaway view of the drying and sealing device of the utility model;

[0018] Figure 4 It is a three-dimensional cutaway view of the mobile lifting device of the utility model.

[0019] In the figure: 1. heat dissipation shell; 2. drying and sealing device; 21. connection frame; 22. blocking block; 23. fan blade; 24. motor; 25. mesh tube; 26. silica gel desiccant; 27. sealing component; 271. electric telescopic rod; 272. sealing plate; 3. dust net component; 4. mobile lifting device; 41. base; 42. brake wheel; 43. electric lifting rod; 44. thermal conductive aluminum rod; 5. mobile component; 6. refrigeration component; 7. transformer body; 8. fixed component. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a high-efficiency heat dissipation device for a dry-type power transformer, comprising a heat dissipation shell 1, a transformer body 7 is arranged on the inner side of the heat dissipation shell 1, the heat dissipation shell 1 and the transformer body 7 are connected by a fixing component 8, a refrigeration component 6 is arranged on the inner side of the heat dissipation shell 1 and below the transformer body 7, the heat dissipation shell 1 and the refrigeration component 6 are connected by a moving component 5, dustproof net components 3 are arranged on both sides of the heat dissipation shell 1, the heat dissipation shell 1 and the two dustproof net components 3 are connected by two drying and sealing devices 2, and a moving lifting device 4 is installed at the bottom of the heat dissipation shell 1.

[0023] Specifically, the drying and sealing device 2 includes a connecting frame 21, a blocking block 22, a mesh tube 25, a silica gel desiccant 26 and a sealing component 27. The heat dissipation shell 1 and the two dustproof net components 3 are connected through two connecting frames 21. The mesh tube 25 is installed on the inner side of the connecting frame 21. The inner side of the mesh tube 25 is filled with silica gel desiccant 26. The blocking block 22 is installed at the top of the connecting frame 21 and above the silica gel desiccant 26 through a thread. The sealing component 27 is installed on the side of the mesh tube 25 close to the dustproof net component 3.

[0024] By adopting the above technical solution, the device can prevent external moisture from contacting the transformer body 7 through the cooperation of structures such as the silica gel desiccant 26 and the mesh tube 25 when necessary, thereby reducing the possibility of the transformer body 7 being damaged by moisture.

[0025] Specifically, the drying and sealing device 2 further includes a fan blade 23 and a motor 24 . The motor 24 is installed on one side of the mesh tube 25 close to the transformer body 7 , and the fan blade 23 is installed on the outer side of the output end of the motor 24 .

[0026] By adopting the above technical solution, the device can increase the ventilation speed through the cooperation of the fan blades 23 and the motor 24 when needed, thereby increasing the speed of heat discharge from the transformer body 7 and improving the heat dissipation efficiency.

[0027] Specifically, the closing assembly 27 includes an electric telescopic rod 271 and a closing plate 272 . The closing plate 272 is disposed between the mesh tube 25 and the dustproof net assembly 3 . The electric telescopic rod 271 is installed between the mesh tube 25 and the closing plate 272 .

[0028] By adopting the above technical solution, the device can close the dustproof net assembly 3 through the closing plate 272 when necessary, thereby preventing ventilation from proceeding and better meeting the working needs in different situations.

[0029] When the present embodiment is used, when it is necessary to use the device to perform heat dissipation on the transformer main body 7, the electric telescopic rod 271 in the sealing assembly 27 in the two drying and sealing devices 2 is started, so that the two dust-proof net assemblies 3 are not closed by the two closing plates 272, and then according to the surrounding environmental conditions, only the motor 24 in one drying and sealing device 2 needs to be started, thereby driving the fan blades 23 to rotate. Under the action of the fan blades 23, the outside air passes through the dust-proof net assembly 3 and enters the connecting frame 21, and the silica gel desiccant 26 in the mesh tube 25 dries the air, and then the air enters the heat dissipation housing 1 and contacts the transformer main body 7, and then the air is discharged from the connecting frame 21 and the dust-proof net assembly 3 on the other side with the heat of the transformer main body 7, thereby dissipating the heat. In addition, the staff can start the refrigeration assembly 6 to assist in cooling the transformer main body 7, and the moving assembly 5 can drive the refrigeration assembly 6 to move back and forth. When necessary, the staff can unscrew the blocking block 22 to replace the silica gel desiccant 26, and the fixing assembly 8 plays the role of fixing the transformer main body 7.

[0030] Example 2

[0031] The present embodiment is different from the first embodiment in that the mobile lifting device 4 includes a base 41 and brake wheels 42 . The base 41 is disposed below the heat dissipation housing 1 , and a plurality of brake wheels 42 are installed below the base 41 .

[0032] By adopting the above technical solution, the staff can move the position of the device to a certain extent through each brake wheel 42 when necessary, thereby reducing the difficulty of moving the device and alleviating the labor burden of the staff.

[0033] Specifically, the mobile lifting device 4 further includes an electric lifting rod 43 and a heat-conducting aluminum rod 44 . The heat dissipation housing 1 and the base 41 are connected via the electric lifting rod 43 . A plurality of heat-conducting aluminum rods 44 are installed at the bottom of the heat dissipation housing 1 .

[0034] By adopting the above technical solution, the device can adjust the height of the heat dissipation shell 1 through the electric lifting rod 43 when needed. In addition, the heat-conducting aluminum rod 44 can assist in heat dissipation when there is a gap between the heat dissipation shell 1 and the base 41.

[0035] When this embodiment is in use, when the staff needs to move the position of the device, they can push the device and move the position of the device by moving the brake wheels 42 in the lifting device 4. When necessary, the staff can start the electric lifting rod 43 to adjust the height of the heat dissipation shell 1. When there is a gap between the heat dissipation shell 1 and the base 41, the heat-conducting aluminum rods 44 on the heat dissipation shell 1 will contact the outside world, thereby conducting the heat in the heat dissipation shell 1 and performing auxiliary heat dissipation work.

[0036] The structures and principles of the heat dissipation housing 1, the dust-proof net assembly 3 composed of a cover, an insertion rod and a first dust-proof net, the moving assembly 5 composed of a movable plate, a strip through hole, a gear and a driving motor, the refrigeration assembly 6 composed of a refrigerator, a heat dissipation plate and a second dust-proof net, the transformer body 7, and the fixing assembly 8 composed of a fixing plate, a threaded rod, a nut, a clamping plate and a nut in the utility model have been disclosed in a dry-type power transformer heat dissipation device disclosed in Chinese patent application No. 201921280835.1. The working principle is that the two first dust-proof nets are installed to facilitate the exchange of air inside the heat dissipation housing with the outside; because the first external thread and the second external thread are arranged in opposite directions, rotating the threaded rod can drive the two clamping plates to move toward each other, so that the two clamping plates cooperate to clamp the transformer body, the nut can lock the threaded rod to ensure the stability of the working state of the two clamping plates, the driving motor drives the gear to rotate, and because the gear is a half gear, the gear rotation can drive the movable plate to reciprocate, thereby driving the heat dissipation mechanism to reciprocate in the horizontal direction, the refrigerator performs cooling, and the cold air enters the heat dissipation plate and dissipates the transformer body through multiple heat dissipation holes.

[0037] The working principle and use process of the utility model are as follows: when the device needs to be used to perform heat dissipation on the transformer main body 7, the electric telescopic rod 271 in the closing assembly 27 of the two drying and closing devices 2 is started, so that the two dust-proof net assemblies 3 are not closed by the two closing plates 272, and then according to the surrounding environmental conditions, only the motor 24 in one drying and closing device 2 needs to be started to drive the fan blades 23 to rotate. Under the action of the fan blades 23, the outside air passes through the dust-proof net assembly 3 and enters the connecting frame 21, and the silica gel desiccant 26 in the mesh tube 25 dries the air, and then the air enters the heat dissipation housing 1 and contacts the transformer main body 7, and then the air is discharged from the connecting frame 21 and the dust-proof net assembly 3 on the other side with the heat of the transformer main body 7, thereby performing Heat dissipation, in addition, the staff can start the refrigeration component 6 to assist in cooling the transformer body 7, the moving component 5 can drive the refrigeration component 6 to move back and forth, and the staff can unscrew the blocking block 22 to replace the silica gel desiccant 26 when necessary, and the fixing component 8 plays the role of fixing the transformer body 7; when the staff needs to move the position of the device, the device can be pushed, and the position of the device can be moved by moving the brake wheels 42 in the lifting device 4. When necessary, the staff can start the electric lifting rod 43 to adjust the height of the heat dissipation shell 1. When there is a gap between the heat dissipation shell 1 and the base 41, the various heat-conducting aluminum rods 44 on the heat dissipation shell 1 will contact the outside world, thereby conducting the heat in the heat dissipation shell 1, and then assisting in heat dissipation.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient heat dissipation device for a dry-type power transformer, comprising a heat dissipation housing, characterized in that: A transformer body is arranged on the inner side of the heat dissipation shell, and the heat dissipation shell and the transformer body are connected via a fixed component. A refrigeration component is arranged on the inner side of the heat dissipation shell and below the transformer body, and the heat dissipation shell and the refrigeration component are connected via a movable component. Dustproof net components are arranged on both sides of the heat dissipation shell, and the heat dissipation shell and the two dustproof net components are connected via two drying and sealing devices. A movable lifting device is installed at the bottom of the heat dissipation shell.

2. The high-efficiency heat dissipation device for a dry-type power transformer according to claim 1, characterized in that: The drying and sealing device includes a connecting frame, a blocking block, a mesh tube, a silica gel desiccant and a sealing component. The heat dissipation housing and the two dustproof net components are connected via two connecting frames. A mesh tube is installed on the inner side of the connecting frame. The inner side of the mesh tube is filled with silica gel desiccant. A blocking block is installed via a thread on the top of the connecting frame and above the silica gel desiccant. A sealing component is installed on the side of the mesh tube close to the dustproof net component.

3. The high-efficiency heat dissipation device for a dry-type power transformer according to claim 2, characterized in that: The drying and sealing device also includes fan blades and a motor. The motor is installed on one side of the mesh cylinder close to the transformer body, and the fan blades are installed on the outer side of the motor output end.

4. The high-efficiency heat dissipation device for a dry-type power transformer according to claim 2, characterized in that: The closing component comprises an electric telescopic rod and a closing plate, a closing plate is arranged between the mesh tube and the dustproof net component, and an electric telescopic rod is installed between the mesh tube and the closing plate.

5. The high-efficiency heat dissipation device for a dry-type power transformer according to claim 1, characterized in that: The mobile lifting device comprises a base and brake wheels. The base is arranged below the heat dissipation shell, and a plurality of brake wheels are installed below the base.

6. The high-efficiency heat dissipation device for a dry-type power transformer according to claim 5, characterized in that: The mobile lifting device also includes an electric lifting rod and a heat-conducting aluminum rod. The heat dissipation shell and the base are connected by the electric lifting rod. A plurality of heat-conducting aluminum rods are installed at the bottom of the heat dissipation shell.

Images