Heat dissipation cabinet for transformer

Abstract

The utility model relates to the technical field of transformers, and discloses a heat dissipation cabinet for a transformer, which comprises a heat dissipation cabinet body, a mounting rack is fixedly mounted in the heat dissipation cabinet body, a transformer body is mounted at the top end of the mounting rack, a cooling liquid storage box is arranged at a position close to one side in the mounting rack, and a cooling liquid is arranged in the cooling liquid storage box. A conveying water pump is mounted at the position, close to the other side, in the mounting frame, a cooling pipe surrounds the outer ring of the transformer body, and a water pumping opening of the conveying water pump is connected with a cooling liquid storage box through a liquid pumping pipe; the heat generated when the transformer body works is conveniently conducted to the cooling pipe through the cooling pipe, the semiconductor cooler and the conveying water pump, the safety performance is conveniently improved, the air circulation efficiency in the heat dissipation cabinet body is conveniently improved through the heat dissipation fan and the exhaust fan, the heat of the hot end of the semiconductor cooler is conveniently dissipated, the situation that the heat is directly blown to the ground is avoided, and the service life of the transformer is prolonged. And the dust flying probability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a heat dissipation cabinet for transformers. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, and voltage stabilization. The transformer generates a lot of heat when working. When the transformer is running in an electrical cabinet, the heat dissipation is poor, which will cause the transformer temperature to rise sharply. In severe cases, the transformer will burn out and be damaged, and even endanger its surrounding electrical components.

[0003] A Chinese patent provides a heat dissipation structure for a transformer, with publication number CN215496260U, comprising a cabinet for accommodating a transformer and a partition for transversely partitioning the space between the transformer and the cabinet; the outer wall of the partition is fixedly connected to the inner wall of the cabinet; the partition is provided with a first receiving opening for the winding part of the transformer to pass through; the bottom end of the cabinet, the side wall of the cabinet and the partition form an air inlet cavity.

[0004] The above device realizes heat dissipation and cooling of the transformer through the arrangement of the air inlet cavity, the air outlet cavity and the fan, thereby improving the heat dissipation effect of the high-voltage winding; it is easy to adjust the position of the first adjustment plate and the second adjustment plate, and can be applied to windings of different diameters, which is more practical. However, heat dissipation is carried out by blowing air through a fan. When the transformer is in a relatively hot environment and the surrounding air temperature is too high, the cooling efficiency is low, and during the ventilation process, dust or other small debris on the ground can be easily brought into the cabinet, which can easily interfere with the operation of the transformer after long-term use. Utility Model Content

[0005] The purpose of the utility model is to provide a heat dissipation cabinet for a transformer, so as to solve the problem that in the existing device, when the transformer is in a relatively hot environment and the surrounding air temperature is too high, the cooling efficiency is low, and during the ventilation process, dust or other small debris on the ground is easily brought into the cabinet, which is easy to interfere with the operation of the transformer after long-term use.

[0006] To achieve the above object, the present invention provides the following technical solution: a heat dissipation cabinet for a transformer, comprising a heat dissipation cabinet body, a mounting frame fixedly installed inside the heat dissipation cabinet body, and a transformer body mounted on the top of the mounting frame;

[0007] A coolant storage tank is provided on one side of the interior of the mounting frame, and a water delivery pump is installed on the other side of the interior of the mounting frame. A cooling pipe is surrounded by the outer ring of the transformer body. The water suction port of the water delivery pump is connected to the coolant storage tank through the suction pipe, and the water outlet of the water delivery pump is connected to one end of the cooling pipe through the delivery pipe. A number of semiconductor refrigerators are fixedly installed at a lower position inside the coolant storage tank, and the cold end of the semiconductor refrigerator is located inside the coolant storage tank. The end of the cooling pipe away from the delivery pipe extends into the coolant storage tank.

[0008] Preferably, an exhaust air duct is provided at the bottom end of the heat dissipation cabinet body, the hot end of the semiconductor cooler is located inside the exhaust air duct, and a plurality of equidistantly arranged heat dissipation fans are installed on one side of the heat dissipation cabinet body.

[0009] Preferably, a ventilation opening is provided on a side of the heat dissipation cabinet body away from the heat dissipation fan, and a ventilation dustproof net is installed in the ventilation opening.

[0010] Preferably, a plurality of exhaust fans are installed at an upper position on one side of the exhaust duct, and the plurality of exhaust fans are located below the heat dissipation fan.

[0011] Preferably, a plurality of guide pipes are provided on a side of the heat dissipation cabinet body away from the exhaust fan, and the plurality of guide pipes are movably connected to the heat dissipation cabinet body via a damping shaft.

[0012] Preferably, the plurality of guide pipes are located below the ventilation and dustproof net, and the air outlet angles of the guide pipes are adaptively matched with the ventilation and dustproof net.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) The heat dissipation cabinet for the transformer is provided with a cooling pipe, a semiconductor refrigerator, a water delivery pump, a coolant storage tank, and a delivery pipe in conjunction with the transformer body, so that the heat generated by the transformer body during operation is transferred to the cooling pipe, thereby facilitating heat dissipation of the transformer body. The low temperature of the cooling pipe can reduce the air temperature inside the heat dissipation cabinet to a certain extent, facilitating the operation of the transformer body in a relatively cold environment, preventing high-temperature spontaneous combustion inside the transformer body, and improving safety performance.

[0015] 2) The heat dissipation cabinet for the transformer is provided with a heat dissipation fan, an exhaust fan, and an exhaust air duct that cooperate with each other. The heat dissipation fan and the exhaust fan continuously rotate to improve the air circulation efficiency in the heat dissipation cabinet body, so as to perform air cooling and heat dissipation. The exhaust fan is used to transport the air inside the heat dissipation cabinet body to the exhaust air duct, so as to dissipate heat at the hot end of the semiconductor cooler, thereby improving the cooling effect of the semiconductor cooler. At the same time, the guide pipe can guide the exhausted air to prevent it from blowing directly to the ground, thereby reducing the probability of dust flying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a heat dissipation cabinet for a transformer in an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the heat dissipation cabinet body in an embodiment of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the cooling pipe and the transformer body in an embodiment of the present utility model;

[0019] Figure 4 Schematic diagram of the structure of the heat dissipation fan and the exhaust fan in the embodiment of the present invention.

[0020] In the figure: 1. Heat dissipation cabinet body; 2. Ventilation dustproof net; 3. Mounting frame; 4. Transformer body; 5. Coolant storage tank; 6. Water delivery pump; 7. Delivery pipe; 8. Cooling pipe; 9. Semiconductor refrigerator; 10. Cooling fan; 11. Exhaust fan; 12. Exhaust air duct; 13. Guide pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] Combine Figure 1-Figure 4 A heat dissipation cabinet for a transformer includes a heat dissipation cabinet body 1, a mounting frame 3 is fixedly installed inside the heat dissipation cabinet body 1, and a transformer body 4 is installed on the top of the mounting frame 3.

[0024] See Figure 2 and Figure 3 A coolant storage tank 5 is provided on one side of the interior of the mounting frame 3, and a water delivery pump 6 is installed on the other side of the interior of the mounting frame 3. A cooling pipe 8 is surrounded by the outer ring of the transformer body 4. The water suction port of the water delivery pump 6 is connected to the coolant storage tank 5 through the suction pipe, and the water outlet of the water delivery pump 6 is connected to one end of the cooling pipe 8 through the delivery pipe 7. A number of semiconductor refrigerators 9 are fixedly installed at the lower position of the interior of the coolant storage tank 5, and the cold end of the semiconductor refrigerator 9 is located inside the coolant storage tank 5, and the end of the cooling pipe 8 away from the delivery pipe 7 extends into the coolant storage tank 5.

[0025] Specifically, when the transformer body 4 generates a large amount of heat during operation, the coolant stored in the coolant storage tank 5 can be extracted by starting the water delivery pump 6 and transmitted to the cooling pipe 8 through the delivery pipe 7. The cooling pipe 8 contacts the transformer body 4 so as to bring out the heat in the transformer body 4, thereby improving the cooling effect of the transformer body 4 and preventing it from overheating and damage. After the coolant rotates around the transformer body 4 in the cooling pipe 8, it will flow back to the coolant storage tank 5 again. After flowing back, the coolant in the coolant storage tank 5 can be cooled again by the cold end heat absorption refrigeration of the semiconductor refrigerator 9, and then the steps are repeated several times to achieve cyclic refrigeration.

[0026] Example 2

[0027] See Figure 2 and Figure 4 On the basis of the first embodiment, an exhaust duct 12 is provided at the bottom end of the heat dissipation cabinet body 1, the hot end of the semiconductor cooler 9 is located inside the exhaust duct 12, and a plurality of equidistantly arranged heat dissipation fans 10 are installed on one side of the heat dissipation cabinet body 1. A vent is provided on the side of the heat dissipation cabinet body 1 away from the heat dissipation fan 10, and a ventilation dust-proof net 2 is installed in the vent. A plurality of exhaust fans 11 are installed at the upper position of one side of the exhaust duct 12, and the plurality of exhaust fans 11 are located below the heat dissipation fan 10. A plurality of guide pipes 13 are provided on the side of the heat dissipation cabinet body 1 away from the exhaust fan 11. The plurality of guide pipes 13 are movably connected to the heat dissipation cabinet body 1 through a damping shaft, and the plurality of guide pipes 13 are located below the ventilation dust-proof net 2, and the air outlet angle of the guide pipe 13 is adaptively matched with the ventilation dust-proof net 2.

[0028] Specifically, the cooling fan 10 and the exhaust fan 11 can be started. By continuously rotating the cooling fan 10, the air circulation efficiency in the cooling cabinet body 1 can be accelerated. At the same time, the exhaust fan 11 can transport air to the exhaust duct 12, and then the air is ejected again from the guide pipe 13. The hot end of the semiconductor refrigerator 9 is in the exhaust duct 12. When the air flows through the exhaust duct 12, it plays a role in air cooling and heat dissipation of the semiconductor refrigerator 9, so that the semiconductor refrigerator 9 maintains the best cooling state. The air enters the interior of the cooling cabinet body 1 after being filtered through the ventilation dustproof net 2, which can reduce the impurities it carries. At the same time, the guide pipe 13 can be adjusted to a blowing angle toward the ventilation dustproof net 2, which plays a role in blowing and cleaning the dust on the surface of the ventilation dustproof net 2, thereby reducing the probability of dust adhesion.

[0029] During actual operation, when the transformer body 4 generates a large amount of heat during operation, the coolant stored in the coolant storage tank 5 can be extracted by starting the water delivery pump 6 and transferred to the cooling pipe 8 through the delivery pipe 7. The cooling pipe 8 contacts the transformer body 4 so as to bring out the heat in the transformer body 4, thereby improving the cooling effect of the transformer body 4 and preventing it from overheating and damage. After the coolant rotates around the transformer body 4 in the cooling pipe 8, it will flow back to the coolant storage tank 5 again. After flowing back, the coolant in the coolant storage tank 5 can be cooled again by the cold end heat absorption refrigeration of the semiconductor refrigerator 9, and then the steps are repeated several times to achieve cyclic refrigeration.

[0030] The cooling fan 10 and the exhaust fan 11 can be started. By continuously rotating the cooling fan 10, the air circulation efficiency in the cooling cabinet body 1 can be accelerated. At the same time, the exhaust fan 11 can transport air to the exhaust duct 12, and then the air is ejected again from the guide pipe 13. The hot end of the semiconductor cooler 9 is in the exhaust duct 12. When the air flows through the exhaust duct 12, it plays a role in cooling and dissipating the heat of the semiconductor cooler 9, so that the semiconductor cooler 9 maintains the best cooling state.

[0031] The air is filtered through the ventilation dustproof net 2 and then enters the interior of the heat dissipation cabinet body 1, which can reduce the impurities it carries. At the same time, the guide pipe 13 can be adjusted to a blowing angle toward the ventilation dustproof net 2, which plays the role of blowing and cleaning the dust on the surface of the ventilation dustproof net 2, thereby reducing the probability of dust adhesion.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation cabinet for a transformer, comprising a heat dissipation cabinet body (1), a mounting frame (3) fixedly mounted inside the heat dissipation cabinet body (1), and a transformer body (4) mounted on the top of the mounting frame (3); A coolant storage tank (5) is provided on one side of the interior of the mounting frame (3), a water delivery pump (6) is installed on the other side of the interior of the mounting frame (3), a cooling pipe (8) surrounds the outer ring of the transformer body (4), a water suction port of the water delivery pump (6) is connected to the coolant storage tank (5) through a liquid suction pipe, and a water outlet of the water delivery pump (6) is connected to one end of the cooling pipe (8) through a delivery pipe (7), a plurality of semiconductor refrigerators (9) are fixedly installed at a lower position inside the coolant storage tank (5), and the cold end of the semiconductor refrigerator (9) is located inside the coolant storage tank (5), and the cooling pipe (8) extends into the coolant storage tank (5) at one end away from the delivery pipe (7).

2. A heat dissipation cabinet for a transformer according to claim 1, characterized in that: An exhaust duct (12) is provided at the bottom end of the heat dissipation cabinet body (1), a hot end of the semiconductor cooler (9) is located inside the exhaust duct (12), and a plurality of equidistantly arranged heat dissipation fans (10) are installed on one side of the heat dissipation cabinet body (1).

3. A heat dissipation cabinet for a transformer according to claim 2, characterized in that: A ventilation opening is provided on a side of the heat dissipation cabinet body (1) away from the heat dissipation fan (10), and a ventilation dustproof net (2) is installed in the ventilation opening.

4. A heat dissipation cabinet for a transformer according to claim 3, characterized in that: A plurality of exhaust fans (11) are installed at an upper position on one side of the exhaust duct (12), and the plurality of exhaust fans (11) are located below the heat dissipation fan (10).

5. The heat dissipation cabinet for a transformer according to claim 4, characterized in that: A plurality of guide pipes (13) are provided on a side of the heat dissipation cabinet body (1) away from the exhaust fan (11), and the plurality of guide pipes (13) are movably connected to the heat dissipation cabinet body (1) via a damping shaft.

6. The heat dissipation cabinet for a transformer according to claim 5, characterized in that: The plurality of guide pipes (13) are located below the ventilation and dustproof net (2), and the air outlet angles of the guide pipes (13) are adaptively matched with the ventilation and dustproof net (2).

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