Rapid cooling oil-immersed transformer

Abstract

The utility model provides a fast cooling oil-immersed transformer, which relates to the technical field of oil-immersed transformers, and comprises a transformer body, a water tank arranged behind the transformer body, a heat dissipation box arranged behind the transformer body, a water pump arranged behind the transformer body, and an input end of the water pump connected with the outer surface of the water tank. The output end of the water pump communicates with a first conveying pipeline. Cooling liquid in the water tank is sucked into the heat absorption plate through the first conveying pipeline by the water pump, the cooling liquid is in full contact with the electronic module on the heat absorption plate and enters the heat dissipation box through the second conveying pipeline after taking away heat, and the heat dissipation fins in the heat dissipation box and the first axial flow fan form forced heat dissipation combined fins to increase the heat dissipation area. The fan accelerates heat dissipation through strong wind, cooling liquid flows back to the water tank for circulation after being cooled, the heat exchange efficiency is greatly improved compared with a traditional single cooling fin design, and it is ensured that the temperature of the transformer is controllable during high-load operation.

Description

Technical Field

[0001] This utility model relates to the field of oil-immersed transformer technology, specifically to an oil-immersed transformer with rapid cooling. Background Technology

[0002] Oil-immersed transformers, as key equipment in power systems, are widely used in urban and rural power grid upgrades, industrial and mining enterprises, as well as in combined transformers and prefabricated substations. During operation, oil-immersed transformers generate a large amount of heat, especially in hot weather or under high load conditions, where heat dissipation becomes a prominent issue. Traditional oil-immersed transformers mainly rely on surface heat-conducting plates or simple heat dissipation fins for heat dissipation, resulting in low heat exchange efficiency and difficulty in meeting the demand for rapid cooling. When the transformer overheats, it reduces the withstand voltage and insulation strength of the insulation material, increases the risk of failure, and seriously affects the stable operation of the power system. Therefore, a rapidly cooling oil-immersed transformer is needed to solve the problems existing in the current technology. Summary of the Invention

[0003] The purpose of this invention is to provide an oil-immersed transformer that cools down rapidly, in order to solve the problem of low heat exchange efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a rapidly cooling oil-immersed transformer, including a transformer body, a water tank and a heat dissipation box arranged at the rear of the transformer body, a water pump installed at the rear of the transformer body, the input end of the water pump connected to the outer surface of the water tank, the output end of the water pump connected to a first conveying pipe, the end of the first conveying pipe away from the water pump passing through the transformer body and connected to a heat absorption plate, the upper surface of the heat absorption plate connected to a second conveying pipe, the end of the second conveying pipe away from the heat absorption plate passing through the transformer body and the heat dissipation box in sequence and connected to the outer surface of the water tank, multiple heat dissipation fins installed inside the heat dissipation box, and a first axial flow fan installed on the upper surface of the heat dissipation box.

[0005] As a further improvement of this utility model: multiple electronic modules are installed inside the transformer body, and the upper surfaces of the multiple electronic modules are connected to the bottom surface of the heat absorption plate. A temperature sensor is installed on the inner wall of the transformer body.

[0006] As a further improvement of this utility model: a support rod is installed on the upper surface of the transformer body, and a solar panel is installed at the top of the support rod.

[0007] As a further improvement of this utility model: a second axial flow fan is installed on the upper surface of the transformer body, and a storage battery is installed on the upper surface of the transformer body.

[0008] As a further improvement of this utility model: the outer surface of the transformer body is provided with a plurality of second heat dissipation vents, and two dustproof nets are installed on the outer surface of the transformer body.

[0009] As a further improvement of this utility model: a controller is installed on the outer surface of the transformer body, and a base is installed on the bottom surface of the transformer body.

[0010] As a further embodiment of this utility model: a fixing plate is installed on the back of the transformer body, the upper surface of the fixing plate is connected to the bottom surface of the heat dissipation box and the water tank respectively, a plurality of first heat dissipation vents are opened on the outer surface of the heat dissipation box, and a box door is hinged to the front of the transformer body.

[0011] Compared with the prior art, the beneficial effects of this utility model include:

[0012] This invention uses a water pump to draw coolant from the water tank into a heat absorber plate via a first delivery pipe. The coolant makes full contact with the electronic module on the heat absorber plate, carrying away heat, and then enters the heat dissipation box via a second delivery pipe. The heat dissipation fins in the heat dissipation box form a forced heat dissipation combination with the first axial flow fan. The fins increase the heat dissipation area, and the strong airflow of the fan accelerates heat dissipation, allowing the coolant to cool down and flow back to the water tank for circulation. This significantly improves heat exchange efficiency compared to the traditional single heat sink design, ensuring that the transformer temperature is controllable when operating under high load. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0014] Figure 1 The schematic diagram shows a three-dimensional structural diagram of a rapidly cooling oil-immersed transformer according to one embodiment of the present invention.

[0015] Figure 2 The diagram schematically shows a left view of a rapidly cooling oil-immersed transformer according to one embodiment of the present invention.

[0016] Figure 3 The schematic diagram shows a top view of a rapidly cooling oil-immersed transformer according to one embodiment of the present invention.

[0017] Figure 4 The schematic diagram shows a cross-sectional view of a rapidly cooling oil-immersed transformer according to one embodiment of the present invention.

[0018] Figure 5The diagram schematically shows a rear sectional view of a rapidly cooling oil-immersed transformer according to one embodiment of the present invention.

[0019] In the picture:

[0020] 1. Transformer body; 2. Solar panel; 3. Box door; 4. Heat sink; 5. First heat dissipation vent; 6. First conveying pipe; 7. Water pump; 8. Dustproof net; 9. Battery; 10. Controller; 11. First axial flow fan; 12. Support rod; 13. Heat absorption plate; 14. Second axial flow fan; 15. Second conveying pipe; 16. Electronic module; 17. Heat dissipation fins; 18. Second heat dissipation vent; 19. Base; 20. Water tank; 21. Fixing plate; 22. Temperature sensor. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] An embodiment of the present invention is shown in conjunction with the accompanying drawings.

[0023] A rapidly cooling oil-immersed transformer includes a transformer body 1, which is the core component of the oil-immersed transformer and is responsible for the conversion and transmission of electrical energy. A water tank 20 is located behind the transformer body 1 to store coolant and provide cooling medium for the system. A heat dissipation box 4 is also located behind the transformer body 1, serving as a container for installing heat dissipation fins 17 to improve heat dissipation efficiency. A water pump 7 is installed behind the transformer body 1 to transport coolant from the water tank 20 to the heat absorption plate 13. The input end of the water pump 7 is connected to the outer surface of the water tank 20, and the output end of the water pump 7 is connected to a first conveying... Pipe 6, the end of the first conveying pipe 6 away from the water pump 7 passes through the transformer body 1 and is connected to the heat absorption plate 13, which is used to absorb the heat generated by the transformer. The upper surface of the heat absorption plate 13 is connected to the second conveying pipe 15. The end of the second conveying pipe 15 away from the heat absorption plate 13 passes through the transformer body 1 and the heat sink 4 in sequence and is connected to the outer surface of the water tank 20. Multiple heat dissipation fins 17 are installed inside the heat sink 4 to absorb the heat of the coolant. The upper surface of the heat sink 4 is equipped with a first axial flow fan 11 to enhance the heat dissipation effect of the heat dissipation fins 17.

[0024] In this embodiment, multiple electronic modules 16 are installed inside the transformer body 1 for installing various electronic components and circuits. The upper surfaces of the multiple electronic modules 16 are connected to the bottom surface of the heat absorption plate 13. A temperature sensor 22 is installed on the inner wall of the transformer body 1 to monitor the temperature of the transformer body 1 and send a signal to the controller 10 according to the temperature change.

[0025] In this embodiment, a support rod 12 is installed on the upper surface of the transformer body 1, and a solar panel 2 is installed at the top of the support rod 12 to collect solar energy and convert it into electrical energy to provide power support for the entire system.

[0026] In this embodiment, a second axial flow fan 14 is installed on the upper surface of the transformer body 1 and is installed inside the transformer body 1 for initial heat dissipation. A storage battery 9 is installed on the upper surface of the transformer body 1 for storing the electrical energy generated by the solar panel 2.

[0027] In this embodiment, the outer surface of the transformer body 1 is provided with a plurality of second heat dissipation vents 18 for discharging hot air, and two dustproof nets 8 are installed on the outer surface of the transformer body 1 to prevent dust and other particles from entering the transformer body 1.

[0028] In this embodiment, a controller 10 is installed on the outer surface of the transformer body 1, which is the control center of the entire device. A base 19 is installed on the bottom surface of the transformer body 1 to support the transformer.

[0029] In this embodiment, a fixing plate 21 is installed on the back of the transformer body 1 to provide support for the heat dissipation box 4 and the water tank 20. The upper surface of the fixing plate 21 is connected to the bottom surface of the heat dissipation box 4 and the water tank 20 respectively. Multiple first heat dissipation vents 5 are opened on the outer surface of the heat dissipation box 4. The front of the transformer body 1 is hinged with a box door 3, which is the entrance of the transformer, to facilitate maintenance and repair.

[0030] Working Principle: During operation, the operator first checks the coolant level using the level gauge on the water tank 20. After confirming the level is correct, they then check the safety of the electrical module wiring connections. After completing these checks, the power is connected. After the equipment has run for a period of time, the internal temperature of the transformer body 1 begins to rise. At this time, the temperature sensor 22 monitors the temperature change in real time. When the temperature reaches a preset threshold, the temperature sensor 22 sends a signal to the controller 10. The controller 10 then activates the second axial flow fan 14 to provide initial cooling for the inside of the transformer body 1. If the temperature inside the transformer body 1 continues to rise, the temperature sensor 22 sends another signal to the controller 10, which then... The water pump 7 is started, and the coolant in the water tank 20 is transported to the heat absorber plate 13 through the first delivery pipe 6. After absorbing heat in the heat absorber plate 13, the coolant flows into the water tank 20 through the second delivery pipe 15. Before that, it passes through the heat dissipation box 4. The heat dissipation fins 17 in the heat dissipation box 4 absorb the heat of the coolant in the second delivery pipe 15. At the same time, the first axial flow fan 11 is started to force the heat dissipation fins 17 to dissipate heat. The cooled coolant flows back to the water tank 20 to complete the circulation. During the entire heat dissipation process, the electricity generated by the solar panel 2 is used to power the first axial flow fan 11, the second axial flow fan 14 and the water pump 7 first, and the remaining electricity is used to charge the battery 9.

[0031] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A rapidly cooling oil-immersed transformer, characterized in that, The transformer includes a transformer body (1), a water tank (20) is provided behind the transformer body (1), a heat sink (4) is provided behind the transformer body (1), a water pump (7) is installed behind the transformer body (1), the input end of the water pump (7) is connected to the outer surface of the water tank (20), the output end of the water pump (7) is connected to a first conveying pipe (6), the end of the first conveying pipe (6) away from the water pump (7) passes through the transformer body (1) and is connected to a heat absorption plate (13), the upper surface of the heat absorption plate (13) is connected to a second conveying pipe (15), the end of the second conveying pipe (15) away from the heat absorption plate (13) passes through the transformer body (1) and the heat sink (4) in sequence and is connected to the outer surface of the water tank (20), a plurality of heat dissipation fins (17) are installed inside the heat sink (4), and a first axial flow fan (11) is installed on the upper surface of the heat sink (4).

2. The rapidly cooling oil-immersed transformer according to claim 1, characterized in that, The transformer body (1) is equipped with multiple electronic modules (16) inside. The upper surfaces of the multiple electronic modules (16) are connected to the bottom surface of the heat absorption plate (13). A temperature sensor (22) is installed on the inner wall of the transformer body (1).

3. The rapidly cooling oil-immersed transformer according to claim 2, characterized in that, A support rod (12) is installed on the upper surface of the transformer body (1), and a solar panel (2) is installed at the top of the support rod (12).

4. The rapidly cooling oil-immersed transformer according to claim 3, characterized in that, A second axial flow fan (14) is installed on the upper surface of the transformer body (1), and a storage battery (9) is installed on the upper surface of the transformer body (1).

5. The rapidly cooling oil-immersed transformer according to claim 4, characterized in that, The outer surface of the transformer body (1) is provided with a plurality of second heat dissipation vents (18), and two dustproof nets (8) are installed on the outer surface of the transformer body (1).

6. The rapidly cooling oil-immersed transformer according to claim 5, characterized in that, A controller (10) is installed on the outer surface of the transformer body (1), and a base (19) is installed on the bottom surface of the transformer body (1).

7. The rapidly cooling oil-immersed transformer according to claim 1, characterized in that, A fixing plate (21) is installed on the back of the transformer body (1). The upper surface of the fixing plate (21) is connected to the bottom surface of the heat sink (4) and the water tank (20) respectively. Multiple first heat dissipation holes (5) are opened on the outer surface of the heat sink (4). A door (3) is hinged to the front of the transformer body (1).

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