Explosion-proof device of oil-immersed power transformer

Abstract

The utility model provides an explosion-proof device of an oil-immersed power transformer, which relates to the field of oil-immersed power transformers and comprises a base, the top of the base is provided with an oil-immersed power transformer body, one side of the oil-immersed power transformer body is provided with two fixing seats, the other side of the fixing seats is provided with a cooling box, and the oil-immersed power transformer body is provided with an oil-immersed power transformer. An inner container is arranged on the inner wall of the cooling box, and a spiral pipe is wound on the outer wall of the inner container; the first water suction pump body, the conveying pipe, the flow dividing pipe, the cold water tank, the cooling tank, the inner container, the oil well pump body, the spiral pipe and the connecting pipe are arranged, hot oil in the oil-immersed power transformer is continuously and circularly cooled, the temperature rise of oil liquid is reduced, the explosion phenomenon caused by the too high oil temperature in the oil-immersed power transformer is avoided, and the service life of the oil-immersed power transformer is prolonged. And a second water suction pump body, a refrigerator body, a water suction pipe and a communicating pipe are arranged, cold water is circularly conveyed to the cooling box and the inner container, and water resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-immersed power transformers, in particular to an explosion-proof device for oil-immersed power transformers. Background Art

[0002] An oil-immersed power transformer is a "power transformer immersed in oil". The oil pool is generally filled with transformer oil, which is called an oil-immersed power transformer. During power transmission, the transformer oil can also isolate air and moisture and prevent coil short circuits, thereby playing the role of isolation, energy storage, transmission and distribution of electrical energy.

[0003] As shown in application number 202020806894.4, the utility model discloses "an explosion-proof oil-immersed transformer", including an oil-immersed transformer and a protective casing, wherein the oil-immersed transformer is sleeved inside the protective casing, and a pressure relief valve is installed on the end face of the immersed transformer, and front support columns are arranged at the four corners of the front of the oil-immersed transformer, and left support columns are equidistantly arranged at the center of the left wall of the oil-immersed transformer. The explosion-proof oil-immersed transformer increases the contact area between the immersed transformer and the cooling water, and the front support column, the left support column, the bottom support column and the heat dissipation fins are all made of aluminum material to dissipate heat layer by layer, thereby achieving the effect of rapid heat dissipation. However, when the existing explosion-proof oil-immersed transformer is in use, the heat is taken away by the radiator on the surface of the oil tank, but the heat dissipation effect is relatively general, and there is still a risk of transformer explosion. Therefore, the utility model proposes an explosion-proof device for oil-immersed power transformer to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes an explosion-proof device for an oil-immersed power transformer. The explosion-proof device for the oil-immersed power transformer continuously circulates and cools the hot oil in the oil-immersed power transformer by arranging a first water pump body, a delivery pipe, a shunt pipe, a cold water tank, a cooling tank, an inner tank, an oil pump body, a spiral pipe and a connecting pipe, thereby reducing the temperature rise of the oil and avoiding explosion caused by excessive oil temperature in the oil-immersed power transformer. A second water pump body, a refrigerator body, a water pump pipe and a connecting pipe are arranged to circulate cold water to the cooling tank and the inner tank to save water resources.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: an explosion-proof device for an oil-immersed power transformer, comprising a base, an oil-immersed power transformer body is arranged on the top of the base, two fixing seats are installed on one side of the oil-immersed power transformer body, a cooling box is installed on the other side of the fixing seat, an inner liner is arranged on the inner wall of the cooling box, a spiral tube is wound around the outer wall of the inner liner, an oil pump body is arranged on the top of the cooling box, a connecting pipe is installed on one side of the oil pump body and one end passes through the oil-immersed power transformer body, a fixing box is installed on the top of one side of the base, a cold water tank is arranged on the inner top wall of the fixing box, a water inlet pipe is installed on one side of the cold water tank and one end passes through the fixing box, a first water pump body is arranged on the inner bottom wall of the cold water tank, a delivery pipe is installed on the top of the first water pump body and one end passes through the liner, a shunt pipe is installed on the bottom of one side of the delivery pipe and one end passes through the cooling box, and a refrigerator body is arranged on the inner bottom wall of the fixing box and the top passes through the cold water tank.

[0006] A second water pump body is provided on the inner bottom wall of the fixed box, a water pumping pipe is installed on one side of the second water pump body and one end thereof passes through the cooling box, a connecting pipe is installed on the top of one side of the water pumping pipe and one end thereof passes through the inner tank, and a return pipe is installed on the other side of the second water pump body and one end thereof passes through the cold water tank.

[0007] A further improvement is that the inner liner is sleeve-connected to the cooling box, and the inner liner is a stainless steel inner liner.

[0008] A further improvement is that the two ends of the spiral tube are connected to the oil-immersed power transformer body and the oil pump body, and the spiral tube is connected to the inner tank in a winding manner.

[0009] A further improvement is that the first water pump body and the delivery pipe are tightly fitted, and the delivery pipe and the diversion pipe are connected.

[0010] A further improvement is that the second water pump body is connected to the water pumping pipe and the return pipe, and the cooling box is tightly fitted to the water pumping pipe and the diversion pipe.

[0011] A further improvement is that the water pumping pipe and the connecting pipe are connected to each other, and the inner tank, the connecting pipe and the delivery pipe are tightly fitted.

[0012] The beneficial effects of the utility model are as follows: the utility model continuously circulates and cools the hot oil in the oil-immersed power transformer by arranging a first water pump body, a delivery pipe, a shunt pipe, a cold water tank, a cooling tank, an inner tank, an oil pump body, a spiral pipe and a connecting pipe, thereby reducing the temperature rise of the oil and avoiding explosion caused by excessive oil temperature in the oil-immersed power transformer; a second water pump body, a refrigerator body, a water pump pipe and a connecting pipe are arranged to circulate cold water to the cooling tank and the inner tank, thereby saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front view structure of the inner liner of the utility model;

[0015] Figure 3 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner tank of the utility model;

[0017] Figure 5 For this utility model Figure 1 Enlarged view of point A in the middle.

[0018] In the figure: 1. base; 2. oil-immersed power transformer body; 3. fixing base; 4. cooling box; 5. liner; 6. spiral tube; 7. oil pump body; 8. connecting pipe; 9. fixing box; 10. cold water tank; 11. water inlet pipe; 12. first water pump body; 13. delivery pipe; 14. shunt pipe; 15. refrigerator body; 16. second water pump body; 17. water pumping pipe; 18. connecting pipe; 19. return pipe. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0020] according to Figure 1-5As shown, this embodiment proposes an explosion-proof device for an oil-immersed power transformer, including a base 1, an oil-immersed power transformer body 2 is arranged on the top of the base 1, two fixing seats 3 are installed on one side of the oil-immersed power transformer body 2, a cooling box 4 is installed on the other side of the fixing seat 3, an inner liner 5 is arranged on the inner wall of the cooling box 4, a spiral tube 6 is wound around the outer wall of the inner liner 5, an oil pump body 7 is arranged on the top of the cooling box 4, a connecting pipe 8 is installed on one side of the oil pump body 7, and one end of the connecting pipe 8 penetrates the oil-immersed power transformer body 2. A fixed box 9 is installed on the top of one side of the base 1, and a cold water tank 10 is arranged on the inner top wall of the fixed box 9. A water inlet pipe 11 is installed on one side of the cold water tank 10 and one end thereof passes through the fixed box 9. A first water pump body 12 is arranged on the inner bottom wall of the cold water tank 10, and a delivery pipe 13 is installed on the top of the first water pump body 12 and one end thereof passes through the inner tank 5. A shunt pipe 14 is installed on the bottom of one side of the delivery pipe 13 and one end thereof passes through the cooling box 4. A refrigerator body 15 is arranged on the inner bottom wall of the fixed box 9 and the top thereof passes through the cold water tank 10.

[0021] A second water pump body 16 is provided on the inner bottom wall of the fixed box 9, a water pumping pipe 17 is installed on one side of the second water pump body 16, and one end thereof passes through the cooling box 4, a connecting pipe 18 is installed on the top of one side of the water pumping pipe 17, and one end thereof passes through the inner tank 5, a return pipe 19 is installed on the other side of the second water pump body 16, and one end thereof passes through the cold water tank 10. When the device is in use, the staff manually adds cold water into the cold water tank 10 through the water inlet pipe 11, and after the cold water tank 10 is filled with cold water, the first water pump body 12 is started through the external control panel, so that the delivery pipe 13 and the shunt pipe 14 transport the cold water in the cold water tank 10 to the cooling box 4 and the inner tank 5, so that after the cooling box 4 and the inner tank 5 are filled with cold water, the oil pump body 7 is started in cooperation with the external control panel, so that the hot oil in the oil-immersed power transformer body 2 enters the spiral tube 6, so that the cold water in the cooling box 4 and the inner tank 5 absorbs the heat of the hot oil in the spiral tube 6, and the oil-immersed The hot oil in the oil-immersed power transformer body 2 is cooled and cooled, and the cooled hot oil is returned to the oil-immersed power transformer body 2 through the connecting pipe 8, so that the hot oil in the oil-immersed power transformer body 2 is continuously circulated and cooled, and the temperature rise of the oil is reduced, and the explosion caused by excessive oil temperature in the oil-immersed power transformer is avoided. When the hot oil in the cold water absorption spiral tube 6 in the cooling box 4 and the inner tank 5 dissipates heat to heat the water, the second pump body 16 and the refrigerator body 15 are started through the external control panel, so that the pumping pipe 17 and the connecting pipe 18 transport the heated water in the cooling box 4 and the inner tank 5 to the cold water tank 10, so that the refrigerator body 15 runs to cool the water in the cold water tank 10, and the cooled water is transported again through the first pump body 12, so that the cold water is circulated to the cooling box 4 and the inner tank 5, and the hot oil is cooled and cooled while the water is circulated, saving water resources.

[0022] The inner tank 5 is connected to the cooling box 4 by a sleeve connection. The inner tank 5 is set as a stainless steel inner tank. The cold water in the cold water tank 10 is transported to the cooling box 4 and the inner tank 5 through the delivery pipe 13 and the diversion pipe 14, so that the cooling box 4 and the inner tank 5 are filled with cold water.

[0023] The two ends of the spiral tube 6 are connected to the oil-immersed power transformer body 2 and the oil pump body 7, and the spiral tube 6 and the inner tank 5 are wound and connected. The oil pump body 7 is started by the external control panel to make the hot oil in the oil-immersed power transformer body 2 enter the spiral tube 6, so that the cold water in the cooling box 4 and the inner tank 5 absorbs the heat of the hot oil passing through the spiral tube 6.

[0024] The first water pump body 12 and the delivery pipe 13 are tightly fitted, and the delivery pipe 13 and the shunt pipe 14 are connected. The first water pump body 12 is started by an external control panel, so that the delivery pipe 13 and the shunt pipe 14 transport the cold water in the cold water tank 10 to the cooling box 4 and the inner tank 5.

[0025] The second water pump body 16 is connected to the water pumping pipe 17 and the return pipe 19, and the cooling box 4 is tightly fitted with the water pumping pipe 17 and the diversion pipe 14. By starting the second water pump body 16 and the refrigerator body 15, the water pumping pipe 17 and the connecting pipe 18 transport the heated water in the cooling box 4 and the inner tank 5 to the cold water tank 10.

[0026] The water pumping pipe 17 and the connecting pipe 18 are interconnected, and the inner tank 5 is tightly fitted with the connecting pipe 18 and the delivery pipe 13. The heated water in the cooling box 4 and the inner tank 5 is transported to the cold water tank 10 through the water pumping pipe 17 and the connecting pipe 18, so that the refrigerator body 15 operates to cool the water in the cold water tank 10.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] When the explosion-proof device of the oil-immersed power transformer is in use, the staff manually adds cold water into the cold water tank 10 through the water inlet pipe 11. After the cold water tank 10 is filled with cold water, the staff starts the first water pump body 12 through the external control panel, so that the delivery pipe 13 and the shunt pipe 14 transport the cold water in the cold water tank 10 to the cooling box 4 and the inner tank 5. After the cooling box 4 and the inner tank 5 are filled with cold water, the staff cooperates with the external control panel to start the oil pump body 7, so that the hot oil in the oil-immersed power transformer body 2 enters the spiral tube 6, so that the cold water in the cooling box 4 and the inner tank 5 absorbs the heat of the hot oil passing through the spiral tube 6, and cools the hot oil in the oil-immersed power transformer body 2, so that the cooled hot oil returns to the oil-immersed power transformer body 2 through the connecting pipe 8. , thereby continuously circulating and cooling the hot oil in the oil-immersed power transformer body 2, reducing the temperature rise of the oil, and avoiding the explosion caused by excessive oil temperature in the oil-immersed power transformer. When the hot oil in the cold water absorption spiral tube 6 in the cooling box 4 and the inner tank 5 dissipates heat to heat the water, the second water pump body 16 and the refrigerator body 15 are started through the external control panel, so that the water pumping pipe 17 and the connecting pipe 18 transport the heated water in the cooling box 4 and the inner tank 5 to the cold water tank 10, so that the refrigerator body 15 runs to cool the water in the cold water tank 10, and the cooled water is transported again through the first water pump body 12, so as to circulate cold water to the cooling box 4 and the inner tank 5, and circulate water while cooling the hot oil, thereby saving water resources.

[0029] The above shows and describes the basic principles, 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 descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which 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. The explosion-proof device of oil-immersed power transformer is characterized by: The invention comprises a base (1), an oil-immersed power transformer body (2) is arranged on the top of the base (1), two fixing seats (3) are installed on one side of the oil-immersed power transformer body (2), a cooling box (4) is installed on the other side of the fixing seat (3), an inner liner (5) is arranged on the inner wall of the cooling box (4), a spiral tube (6) is wound around the outer wall of the inner liner (5), an oil pump body (7) is arranged on the top of the cooling box (4), a connecting pipe (8) is installed on one side of the oil pump body (7) and one end of the connecting pipe passes through the oil-immersed power transformer body (2), and a connecting pipe (8) is installed on the top of one side of the base (1). A fixed box (9) is installed, the inner top wall of the fixed box (9) is provided with a cold water box (10), one side of the cold water box (10) is provided with a water inlet pipe (11) and one end thereof penetrates the fixed box (9), the inner bottom wall of the cold water box (10) is provided with a first water pump body (12), the top of the first water pump body (12) is provided with a delivery pipe (13) and one end thereof penetrates the inner tank (5), a shunt pipe (14) is installed at the bottom of one side of the delivery pipe (13) and one end thereof penetrates the cooling box (4), the inner bottom wall of the fixed box (9) is provided with a refrigerator body (15) and the top end thereof penetrates the cold water box (10); A second water pump body (16) is provided on the inner bottom wall of the fixed box (9); a water pump pipe (17) is installed on one side of the second water pump body (16) and one end thereof passes through the cooling box (4); a connecting pipe (18) is installed on the top of one side of the water pump pipe (17) and one end thereof passes through the inner tank (5); a return pipe (19) is installed on the other side of the second water pump body (16) and one end thereof passes through the cold water tank (10).

2. The explosion-proof device for oil-immersed power transformer according to claim 1, characterized in that: The inner liner (5) is sleeve-connected to the cooling box (4), and the inner liner (5) is a stainless steel inner liner.

3. The explosion-proof device for oil-immersed power transformer according to claim 1, characterized in that: The two ends of the spiral tube (6) are connected to the oil-immersed power transformer body (2) and the oil pump body (7), and the spiral tube (6) is connected to the inner tank (5) in a winding manner.

4. The explosion-proof device for an oil-immersed power transformer according to claim 1, characterized in that: The first water pump body (12) and the delivery pipe (13) are tightly fitted, and the delivery pipe (13) and the diversion pipe (14) are interconnected.

5. The explosion-proof device for oil-immersed power transformer according to claim 1, characterized in that: The second water pump body (16) is connected to the water pumping pipe (17) and the return pipe (19), and the cooling box (4) is tightly fitted to the water pumping pipe (17) and the diversion pipe (14).

6. The explosion-proof device for oil-immersed power transformer according to claim 1, characterized in that: The water extraction pipe (17) and the connecting pipe (18) are interconnected, and the inner container (5) is tightly fitted with the connecting pipe (18) and the delivery pipe (13).

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