Heat dissipation device for oil tank of dry-type transformer

Abstract

The utility model discloses a dry-type transformer oil tank heat dissipation device which comprises a reinforcing bottom plate, a third fixing frame fixedly connected to the reinforcing bottom plate, an air extractor fixedly installed on the third fixing frame, a first conveying pipe connected between the air extractor and a high-temperature chamber, and a heat exchanger fixedly installed on the reinforcing bottom plate. A second conveying pipe is connected between the heat exchanger and the air extractor. When the second temperature sensor detects that the temperature of the cooling liquid reaches the preset threshold value, the cooler is controlled to cool the cooling liquid, and the air extractor can extract hot air generated in the high-temperature chamber, so that the hot air enters the heat exchanger through the first conveying pipe and the second conveying pipe; and the heat exchanger conveys the waste heat, so that other equipment is driven to operate.

Description

Technical Field

[0001] This utility model belongs to the field of transformer oil tank technology, and particularly relates to a heat dissipation device for dry-type transformer oil tank. Background Technology

[0002] Transformer oil tanks generate high levels of heat during operation. Traditional heat dissipation methods involve adding heat sinks or installing cooling pipes inside the tank, with heat exchange achieved through the flow of cooling liquid in the pipes. However, the slow flow of the cooling liquid reduces the efficiency of heat exchange, and the high temperatures generated by the oil during operation are not recycled, resulting in energy waste. Therefore, a dry-type transformer oil tank heat dissipation device is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a dry-type transformer tank cooling device to solve the problems mentioned in the background art.

[0004] A dry-type transformer oil tank cooling device includes a reinforced base plate, a controller mounted on the base plate, and a transformer oil tank fixedly connected to the base plate. The transformer oil tank is internally divided into a low-temperature chamber and a high-temperature chamber. Heat sinks are connected externally to the transformer oil tank. A cooling box is fixedly connected to the low-temperature chamber, and the cooling box is internally divided into an upper layer and a lower layer. A first fixing frame is fixedly connected to the reinforced base plate, and a first material extractor is fixedly mounted on the first fixing frame. A first pipe is connected to the first material extractor, and a second pipe connects the first material extractor to the cooling box. A first temperature sensor is installed on the high-temperature chamber, and a second temperature sensor is installed on the lower layer of the cooling box. The cooling box is equipped with a liquid level sensor and a cooler. Two second mounting brackets are fixedly connected to the upper part of the cooling box, and a second material extractor is fixedly installed on each bracket. A third pipe is connected to each material extractor. Multiple reinforcing rings are fixedly connected to the upper part of the high-temperature chamber, and heat exchange pipes connect these rings to the second material extractors. A third mounting bracket is fixedly connected to the reinforced base plate, and an air extractor is fixedly installed on it. A first conveying pipe connects the air extractor to the high-temperature chamber. A heat exchanger is fixedly installed on the reinforced base plate, and a second conveying pipe connects the heat exchanger to the air extractor.

[0005] Furthermore, the high-temperature chamber is equipped with a heat-resistant coating.

[0006] Furthermore, the heat sink adopts a wavy shape.

[0007] Furthermore, a cover plate is installed on the transformer oil tank.

[0008] The beneficial effects of this utility model are:

[0009] 1. This utility model uses a second extractor to extract the cooling liquid from the cooling tank, allowing the cooling liquid to enter the heat exchange pipe through a third pipe. The cooling liquid exchanges heat with the oil. In order to quickly cool the oil, another second extractor will transport the cooling liquid in the heat exchange pipe back to the lower layer of the cooling tank, thereby realizing the rapid flow of the cooling liquid and improving the heat exchange efficiency of the oil.

[0010] 2. This utility model controls the cooler to cool the coolant when the second temperature sensor detects that the temperature of the cooling liquid has reached a preset threshold. The air extractor extracts the hot air generated in the high-temperature chamber and sends it into the heat exchanger through the first and second conveying pipes. The heat exchanger then transports the waste heat to drive other equipment. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the heat dissipation device for the dry-type transformer oil tank of this utility model;

[0012] Figure 2 This is a cross-sectional three-dimensional structural diagram of the first transformer oil tank;

[0013] Figure 3 This is a second sectional three-dimensional structural diagram of the transformer oil tank;

[0014] Figure 4 This is a schematic diagram of the third sectional three-dimensional structure of the transformer oil tank.

[0015] In the diagram, 1-reinforced base plate, 2-controller, 3-transformer oil tank, 301-low temperature chamber, 302-high temperature chamber, 4-heat sink, 5-cover plate, 6-cooling box, 7-first fixed frame, 8-first feeder, 9-first pipe, 10-second pipe, 11-first temperature sensor, 12-second temperature sensor, 13-liquid level sensor, 14-cooler, 15-second fixed frame, 16-second feeder, 17-third pipe, 18-reinforcement ring, 19-heat exchange pipe, 20-third fixed frame, 21-vacuum pump, 22-first conveying pipe, 23-second conveying pipe, 24-heat exchanger. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 4The dry-type transformer oil tank cooling device of this utility model includes a reinforced base plate 1, a controller 2 mounted on the reinforced base plate 1, and a transformer oil tank 3 fixedly connected to the reinforced base plate 1. The transformer oil tank 3 is internally divided into a low-temperature chamber 301 and a high-temperature chamber 302. Heat sinks 4 are connected externally to the transformer oil tank 3. A cooling box 6 is fixedly connected to the low-temperature chamber 301, and the cooling box 6 is internally divided into an upper layer and a lower layer. A first fixing frame 7 is fixedly connected to the reinforced base plate 1, and a first extractor 8 is fixedly installed on the first fixing frame 7. The first extractor 8 is used to extract cooling liquid, and a first pipe 9 is connected to the first extractor 8. A second pipe 10 connects the first extractor 8 and the cooling box 6. A first temperature sensor 11 is installed on the high-temperature chamber 302 to detect the temperature in the high-temperature chamber 302. The lower layer of the cooling box 6 is equipped with... A second temperature sensor 12 is provided. A liquid level sensor 13 is installed on the lower layer of the cooling box 6. A cooler 14 is installed on the lower layer of the cooling box 6 to cool the liquid. Two second fixing brackets 15 are fixedly connected to the upper layer of the cooling box 6. A second feeder 16 is fixedly installed on the second fixing brackets 15. A third pipe 17 is connected to the second feeder 16. Multiple reinforcing rings 18 are fixedly connected to the high-temperature chamber 302. Heat exchange pipes 19 are connected between the multiple reinforcing rings 18. The heat exchange pipes 19 are connected to the second feeder 16. A third fixing bracket 20 is fixedly connected to the reinforced base plate 1. A vacuum pump 21 is fixedly installed on the third fixing bracket 20. A first conveying pipe 22 is connected between the vacuum pump 21 and the high-temperature chamber 302. A heat exchanger 24 is fixedly installed on the reinforced base plate 1. A second conveying pipe 23 is connected between the heat exchanger 24 and the vacuum pump 21.

[0018] The high-temperature room 302 is equipped with a heat-resistant coating.

[0019] The heat sink 4 is wavy, which helps to dissipate heat from the transformer oil tank 3.

[0020] A cover plate 5 is installed on the transformer oil tank 3.

[0021] The working principle of this utility model is as follows: the liquid level sensor is equipped with a first threshold and a second threshold, and the value of the first threshold is greater than the value of the second threshold.

[0022] After the oil is injected into the low-temperature and high-temperature chambers respectively, the first pipe is connected to the tank containing the coolant. The first pump is then activated, and the coolant enters the lower part of the cooling tank through the first and second pipes. When the coolant level reaches the first threshold preset by the level sensor, the first pump stops. When the transformer oil tank enters the working state, the oil generates a high temperature. When the first temperature sensor detects that the oil temperature is too high, it activates the second pump and the air pump. The second pump draws coolant from the cooling tank, allowing it to enter the heat exchange pipe through the third pipe. The coolant then exchanges heat with the oil. To achieve… The system rapidly cools the oil. A second pump transports the cooling liquid from the heat exchange pipe back to the lower layer of the cooling tank, enabling rapid flow of the cooling liquid and improving the heat exchange efficiency of the oil. When the second temperature sensor detects that the temperature of the cooling liquid reaches a preset threshold, it controls the cooler to cool the cooling liquid. The air pump extracts the hot air generated in the high-temperature chamber, allowing the hot air to enter the heat exchanger through the first and second conveying pipes. This allows the heat exchanger to transfer waste heat, thereby driving the operation of other equipment. When the liquid level of the cooling liquid is lower than the second preset threshold of the liquid level sensor, it controls the first pump to work and replenish the cooling liquid.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 dry-type transformer oil tank heat dissipating device, characterized by: The dry-type transformer oil tank cooling system includes a reinforced base plate, a controller mounted on the base plate, and a transformer oil tank fixedly connected to the base plate. The transformer oil tank is internally divided into a low-temperature chamber and a high-temperature chamber. Heat sinks are connected externally to the transformer oil tank. A cooling box is fixedly connected to the low-temperature chamber, which is internally divided into an upper and lower layer. A first mounting bracket is fixedly connected to the reinforced base plate, and a first feeder is fixedly mounted on the bracket. A first pipe is connected to the feeder, and a second pipe connects the feeder to the cooling box. A first temperature sensor is installed on the high-temperature chamber, and a second temperature sensor is installed on the lower layer of the cooling box. A liquid level sensor is installed in the lower layer of the cooling box, and a cooler is installed in the lower layer of the cooling box. Two second fixed brackets are fixedly connected to the upper layer of the cooling box, and a second material extractor is fixedly installed on the second fixed bracket. A third pipe is connected to the second material extractor. Multiple reinforcing rings are fixedly connected to the high-temperature chamber, and heat exchange pipes are connected between the multiple reinforcing rings. The heat exchange pipes are connected to the second material extractor. A third fixed bracket is fixedly connected to the reinforced base plate, and an air extractor is fixedly installed on the third fixed bracket. A first conveying pipe is connected between the air extractor and the high-temperature chamber. A heat exchanger is fixedly installed on the reinforced base plate, and a second conveying pipe is connected between the heat exchanger and the air extractor.

2. The dry-type transformer oil tank cooling device according to claim 1, characterized in that: The high-temperature room is equipped with a heat-resistant coating.

3. The dry-type transformer oil tank cooling device according to claim 1, characterized in that: The heat sink has a wavy shape.

4. The dry-type transformer tank oil cooler according to claim 1, characterized in that: The transformer oil tank is equipped with a cover.

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