Explosion-proof protection device of transformer

Abstract

The explosion-proof protection device comprises a transformer body, the left surface and the right surface of the transformer body are both fixedly provided with an oil tank and a storage plate, the storage plate is located below the oil tank, the upper surface of the storage plate is sequentially and fixedly provided with a cooling tank and a water tank from inside to outside, and the upper surface of the oil tank is fixedly provided with an exhaust pipe. A pressure release valve and a temperature sensor are fixedly installed on the outer surface of the exhaust pipe, the end, away from the oil tank, of the exhaust pipe penetrates into an inner cavity of the cooling box and is fixedly provided with a condensation pipe, and the bottom of the outer surface of the condensation pipe sequentially penetrates through the cooling box and the storage plate and is sleeved with an oil storage tank in a threaded mode; a water outlet of the water pump is fixedly provided with a water outlet pipe. In the using process, oil gas can be prevented from being in contact with high-temperature air, and the oil gas is directly condensed and collected, so that explosion and fire caused by the oil gas are prevented, safety accidents are avoided, and meanwhile material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer safety protection, in particular to an explosion-proof protection device for a transformer. Background Art

[0002] The transformer is a key equipment in the power grid and is also a large oil-filled equipment. When a transformer fails, the internal pressure will rise sharply. If the pressure is not relieved in time, the oil tank will crack. The flammable gas generated by the internal discharge will cause explosions and fires, endangering the entire substation and the surrounding environment.

[0003] When the internal pressure of the transformer increases, a pressure relief valve is generally used to release the oil and gas in the oil tank to reduce the internal pressure of the transformer. However, direct contact between the oil and gas and the high-temperature air can easily cause explosion and fire, which poses a great safety hazard. In addition, after the transformer fault is eliminated, the transformer oil needs to be replenished to work normally, resulting in a waste of material resources. For this reason, we have designed an explosion-proof protection device for the transformer. Utility Model Content

[0004] The utility model aims to provide an explosion-proof protection device for a transformer, which has the advantages of rapid cooling of oil and gas and high safety protection performance, and solves the problem that when a transformer fails, oil and gas are directly discharged, resulting in direct contact between oil and gas and high-temperature air, which is easy to cause explosion and fire.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer explosion-proof protection device, comprising a transformer body, wherein an oil tank and a storage plate are fixedly installed on the left and right surfaces of the transformer body, the storage plate is located below the oil tank, and a cooling box and a water tank are fixedly installed on the upper surface of the storage plate in sequence from the inside to the outside, an exhaust pipe is fixedly installed on the upper surface of the oil tank, a pressure relief valve and a temperature sensor are fixedly installed on the outer surface of the exhaust pipe, an end of the exhaust pipe away from the oil tank passes through the inner cavity of the cooling box and is fixedly installed with a condenser, the bottom of the outer surface of the condenser passes through the cooling box and the storage plate in sequence and is threadedly sleeved with an oil storage tank, a water pump is fixedly installed on the upper surface of the water tank, a water outlet of the water pump is fixedly installed with a water outlet pipe, and a return pipe is fixedly installed on the upper surface of the cooling box, and an end of the return pipe away from the cooling box passes through the inner cavity of the water tank.

[0006] Preferably, the condenser is spiral-shaped, and inverted teeth are fixedly mounted on the inner wall of the condenser.

[0007] Preferably, the inverted teeth form an angle of 45 degrees with the inner wall of the condenser tube, and a plurality of the inverted teeth are staggeredly installed on the inner wall of the condenser tube.

[0008] Preferably, a refrigerator is fixedly installed at the bottom of the inner cavity of the water tank, and the output end of the temperature sensor is electrically connected to the water pump and the input end of the refrigerator.

[0009] Preferably, a water inlet pipe is fixedly installed at the water inlet of the water pump, the bottom of the water inlet pipe penetrates to the bottom of the inner cavity of the water tank, and a sealing plug is inserted into the upper surface of the water tank.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model discharges oil and gas into the condenser through the exhaust pipe, and at the same time, the water pump draws water in the water tank and discharges it into the cooling box from bottom to top, and then flows into the water tank again through the reflux pipe, and is cooled by the refrigerator for recycling. The oil and gas in the condenser are blocked by the inverted teeth so that they are fully in contact with the inner wall of the condenser, thereby improving the condensation efficiency. The transformer oil after condensation flows into the oil storage tank for collection for secondary utilization. Therefore, the utility model can prevent the oil and gas from contacting with high-temperature air during use, and directly condense and collect them, thereby preventing the oil and gas from causing explosion and fire, avoiding the occurrence of safety accidents, and saving material resources at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the condenser structure of the utility model.

[0014] In the figure: 1. Water tank; 2. Return pipe; 3. Cooling box; 4. Pressure relief valve; 5. Transformer body; 6. Exhaust pipe; 7. Temperature sensor; 8. Inverted teeth; 9. Water pump; 10. Oil tank; 11. Storage plate; 12. Oil storage tank; 13. Water outlet pipe; 14. Refrigerator; 15. Condenser. DETAILED DESCRIPTION

[0015] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0016] See also Figure 1-2A transformer explosion-proof protection device comprises a transformer body 5, on the left and right surfaces of the transformer body 5 are fixedly mounted an oil tank 10 and a storage plate 11, the storage plate 11 is located below the oil tank 10, on the upper surface of the storage plate 11 are fixedly mounted a cooling box 3 and a water tank 1 in sequence from the inside to the outside, on the upper surface of the oil tank 10 is fixedly mounted an exhaust pipe 6, on the outer surface of the exhaust pipe 6 is fixedly mounted a pressure relief valve 4 and a temperature sensor 7, one end of the exhaust pipe 6 away from the oil tank 10 penetrates into the inner cavity of the cooling box 3 and is fixedly mounted with a condenser 15, the bottom of the outer surface of the condenser 15 penetrates the cooling box 3 and the storage plate 11 in sequence and is threadedly sleeved with an oil storage tank 12, on the upper surface of the water tank 1 is fixedly mounted a water pump 9, on the water outlet of the water pump 9 is fixedly mounted a water outlet pipe 13, on the upper surface of the cooling box 3 is fixedly mounted a return pipe 2, and the end of the return pipe 2 away from the cooling box 3 penetrates into the inner cavity of the water tank 1.

[0017] In this embodiment, the condenser 15 is spiral-shaped, and a reverse tooth 8 is fixedly installed on the inner wall of the condenser 15. The reverse tooth 8 forms an angle of 45 degrees with the inner wall of the condenser 15, and multiple reverse teeth 8 are staggeredly installed on the inner wall of the condenser 15. The reverse teeth 8 improve the condensation efficiency and allow the oil and gas to be fully condensed.

[0018] In this embodiment, a refrigerator 14 is fixedly installed at the bottom of the inner cavity of the water tank 1, and the output end of the temperature sensor 7 is electrically connected to the water pump 9 and the input end of the refrigerator 14. Through the temperature sensor 7, the temperature inside the exhaust pipe 6 is sensed in time, thereby improving work efficiency.

[0019] In this embodiment, a water inlet pipe is fixedly installed at the water inlet of the water pump 9 , the bottom of the water inlet pipe penetrates to the bottom of the inner cavity of the water tank 1 , and a sealing plug is inserted into the upper surface of the water tank 1 .

[0020] When the utility model is in use, when a transformer fails, the temperature inside it rises, the high temperature causes the transformer oil to begin to volatilize, and the pressure inside the transformer increases. At this time, the pressure relief valve 4 is started, and the oil and gas are discharged into the condenser 15 through the exhaust pipe 6. The temperature sensor 7 senses the temperature increase of the exhaust pipe 6, and the water pump 9 starts to extract the water in the water tank 1 from the bottom to the top and discharges it into the cooling box 3, and then flows into the water tank 1 through the return pipe 2. At the same time, the refrigerator 14 is started to cool the water in the reflux water tank 1, so as to circulate it. The oil and gas in the condenser 15 are blocked by the inverted teeth 8 so that it is fully in contact with the inner wall of the condenser 15, thereby improving the condensation efficiency. The transformer oil after condensation flows into the oil storage tank 12 for collection so as to be reused secondary.

[0021] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An explosion-proof protection device for a transformer, comprising a transformer body (5), characterized in that: The left and right surfaces of the transformer body (5) are both fixedly mounted with an oil tank (10) and a storage plate (11), the storage plate (11) being located below the oil tank (10), the upper surface of the storage plate (11) being fixedly mounted with a cooling box (3) and a water tank (1) in sequence from the inside to the outside, the upper surface of the oil tank (10) being fixedly mounted with an exhaust pipe (6), the outer surface of the exhaust pipe (6) being fixedly mounted with a pressure relief valve (4) and a temperature sensor (7), the end of the exhaust pipe (6) away from the oil tank (10) passing through A condenser (15) is fixedly installed to the inner cavity of the cooling box (3), the bottom of the outer surface of the condenser (15) passes through the cooling box (3) and the storage plate (11) in sequence and is threadedly sleeved with an oil storage tank (12), a water pump (9) is fixedly installed on the upper surface of the water tank (1), a water outlet of the water pump (9) is fixedly installed with a water outlet pipe (13), and a return pipe (2) is fixedly installed on the upper surface of the cooling box (3), and the end of the return pipe (2) away from the cooling box (3) passes through the inner cavity of the water tank (1).

2. The explosion-proof protection device for a transformer according to claim 1, characterized in that: The condenser tube (15) is spiral-shaped, and the inner wall of the condenser tube (15) is fixedly provided with inverted teeth (8).

3. The explosion-proof protection device for a transformer according to claim 2, characterized in that: The inverted teeth (8) form an angle of 45 degrees with the inner wall of the condenser tube (15), and a plurality of inverted teeth (8) are staggeredly installed on the inner wall of the condenser tube (15).

4. The explosion-proof protection device for a transformer according to claim 1, characterized in that: A refrigerator (14) is fixedly mounted at the bottom of the inner cavity of the water tank (1), and the output end of the temperature sensor (7) is electrically connected to the water pump (9) and the input end of the refrigerator (14).

5. The explosion-proof protection device for a transformer according to claim 1, characterized in that: A water inlet pipe is fixedly installed at the water inlet of the water pump (9), the bottom of the water inlet pipe penetrates to the bottom of the inner cavity of the water tank (1), and a sealing plug is inserted into the upper surface of the water tank (1).

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