220 kilovolt transformer capable of efficiently dissipating heat

Abstract

The invention provides an efficient heat dissipation 220 kilovolt transformer, and relates to the technical field of transformer heat dissipation, the efficient heat dissipation 220 kilovolt transformer is characterized in that a vertical plate is fixedly installed on the top surface of a transformer body, a vertical groove is formed in the surface of the vertical plate, an L-shaped plate is slidably connected into the vertical groove, and a strip-shaped frame is fixedly installed at the end, away from the vertical groove, of the L-shaped plate; first beating plates are fixedly mounted at the ends, away from the strip-shaped frame, of the short single L-shaped rod and the long single L-shaped rod correspondingly, second beating plates are fixedly mounted at the ends, away from the strip-shaped frame, of the long double L-shaped rods and the short double L-shaped rods correspondingly, a motor is fixedly mounted on the surface of the vertical plate, and a special-shaped gear is fixedly mounted at the output end of the motor. The first beating plate and the second beating plate which move up and down in a reciprocating mode are used for repeatedly beating the cooling fin set, so that large impurities on the surface of the cooling fin set are shaken off and cleaned, and the cooling effect of the cooling fin set is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer heat dissipation, and in particular to a 220 kV transformer with high-efficiency heat dissipation. Background Art

[0002] A transformer is a complete set of voltage transformation equipment. Its main components are primary coil, secondary coil and iron core. It can be used for terminal power supply and ring network power supply. The conversion is very convenient, which ensures the reliability and flexibility of power supply. The 220 kV transformer is a type of high-voltage power transformer.

[0003] The existing announcement number is CN218866859U, which is a transformer with efficient heat dissipation function. The patent adopts cooling pipes, cold air pipes and cold air blowers to greatly reduce the external temperature of the transformer, effectively improve the heat dissipation effect of the heat sink group, and ensure the normal operation of the transformer.

[0004] The inventors have found in their daily work that the above-mentioned transformer with high heat dissipation efficiency is exposed to the outside for a long time during actual use, which will cause large accumulation of impurities on the heat sink assembly, thereby reducing the heat dissipation effect of the heat sink assembly over time. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in actual use, a transformer with high efficiency heat dissipation is exposed to the outside for a long time, which will cause large impurities to accumulate in its heat sink group, thereby reducing the heat dissipation effect of the heat sink group over time. A 220 kV transformer with high efficiency heat dissipation is proposed to solve the problem that in actual use, a transformer with high efficiency heat dissipation is exposed to the outside for a long time, which will cause large impurities to accumulate in its heat sink group, thereby reducing the heat dissipation effect of the heat sink group over time.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a 220 kV transformer with efficient heat dissipation, comprising a transformer body, wherein the four sides of the transformer body are provided with heat sink groups, and the top surface of the transformer body is provided with a knocking device for knocking the heat sink group to knock off large impurities on its surface, thereby realizing self-cleaning of the heat sink group and improving the subsequent heat dissipation effect of the heat sink group.

[0007] Preferably, a vertical plate is fixedly mounted on the top surface of the transformer body, a vertical groove is opened on the surface of the vertical plate, an L-shaped plate is slidably connected inside the vertical groove, and a strip frame is fixedly mounted on one end of the L-shaped plate away from the vertical groove.

[0008] Preferably, a short single L-shaped rod and a long single L-shaped rod are fixedly mounted on the left and right side surfaces of the bar frame respectively, and a first knocking plate is fixedly mounted on one end of the short single L-shaped rod and the long single L-shaped rod away from the bar frame.

[0009] Preferably, a long double L-shaped rod and a short double L-shaped rod are fixedly mounted on the front and rear side surfaces of the bar frame respectively, and a second knocking plate is fixedly mounted on one end of the long double L-shaped rod and the short double L-shaped rod away from the bar frame.

[0010] Preferably, a motor is fixedly mounted on the surface of the vertical plate, and a special-shaped gear is fixedly mounted on the output end of the motor.

[0011] Preferably, the teeth on the surface of the special-shaped gear account for only one third, the inner wall surfaces on both sides of the strip frame are provided with tooth-like structures, and the special-shaped gear is meshed with the tooth-like structures on the inner wall surfaces on both sides of the strip frame.

[0012] The effect achieved by the above-mentioned components is: the motor drives the special-shaped gear to rotate, so that the rotation of the special-shaped gear allows the bar frame to move back and forth up and down, and the reciprocating up and down movement of the bar frame finally drives the first knocking plate and the second knocking plate to move back and forth up and down, and the first knocking plate and the second knocking plate that move back and forth up and down are used to repeatedly knock the heat sink group, so as to shake off and clean the large impurities on its surface, thereby improving the heat dissipation effect of the heat sink group.

[0013] Preferably, a plurality of vertically distributed cooling pipes are fixedly provided on the outside of the heat sink group, a plurality of air outlets are evenly opened on the inside of the cooling pipes, an air cooler is provided on the bottom surface of the transformer body, a water pump, a water tank, a wet curtain and a fan are arranged inside the air cooler, and a cold air duct is connected between the air cooler and the cooling pipe.

[0014] The effects achieved by the above components are: the setting of the air cooler has the effect of generating cold air, the setting of the cold air duct has the effect of conveying the cold air generated by the air cooler into the inside of the cooling duct, and the setting of the air outlet has the effect of blowing the cold air inside the cooling duct toward the heat sink group.

[0015] Preferably, one side surface of the air cooler is provided with a fixing device for convenient inspection of internal components of the air cooler, and the fixing device includes a groove, the groove is opened on one side surface of the air cooler, and a slide is slidably connected to the inside of the groove.

[0016] Preferably, a limit rod is fixedly mounted on the surface of the slide plate, an inspection door is slidably connected to the interior of the air cooler, a through hole is provided on the surface of the inspection door, and one end of the limit rod away from the slide plate is plugged into the through hole.

[0017] Preferably, a rectangular plate is fixedly mounted on one side surface of the air cooler, and a spring is fixedly mounted between the rectangular plate and the slide plate.

[0018] The effect achieved by the above components is: when daily maintenance of the air cooler is needed in the later stage, the slide plate can be slid first to move the slide plate inside the groove. The movement of the slide plate inside the groove will squeeze the spring, causing the spring to be compressed. At the same time, the movement of the slide plate inside the groove also drives the limit rod to move. The movement of the limit rod causes it to move out from the inside of the through hole. The separation of the limit rod and the through hole causes the inspection door and the air cooler to lose the limit. At this time, the inspection door can be pulled out from the inside of the air cooler, and the water pump, water tank, wet curtain and fan inside the air cooler can be maintained, thereby avoiding the situation where maintenance cannot be carried out when the air cooler fails, which has an adverse effect on the heat dissipation of the transformer body.

[0019] Compared with the prior art, the advantages and positive effects of the present invention are: When the special-shaped gear rotates and meshes with the tooth-like structure on the left inner wall surface of the bar frame, the bar frame will move downward, and the bar frame will move downward to drive the L-shaped plate to move downward inside the vertical groove. At the same time, the bar frame will also move downward to drive the short single-rod L-shaped rod, the long single L-shaped rod, the short double-root L-shaped rod, and the long double-root L-shaped rod to move downward. The short single-rod L-shaped rod, the long single L-shaped rod, the short double-root L-shaped rod, and the long double-root L-shaped rod will move downward to respectively drive the first knocking plate and the second knocking plate to move downward. The first knocking plate and the second knocking plate move downward to knock the heat sink group, causing the heat sink group to vibrate, thereby knocking off large impurities on the surface of the heat sink group. When the special-shaped gear rotates and meshes with the tooth-like structure on the right inner wall surface of the bar frame, the bar frame will move upward. The bar frame will move upward to drive the L-shaped plate to move upward inside the vertical groove. At the same time, the bar frame will also move upward to drive the short single-rod L-shaped rod, the long single L-shaped rod, the short double-root L-shaped rod The double L-shaped rods and the long double L-shaped rods move upward, and the short single-rod L-shaped rod, the long single L-shaped rod, the short double L-shaped rod, and the long double L-shaped rods move upward, respectively driving the first knocking plate and the second knocking plate to move upward, and the first knocking plate and the second knocking plate move upward to make themselves leave the surface of the heat sink group. As the motor drives the special-shaped gear to continuously rotate, the bar frame can move reciprocatingly up and down, and the reciprocating up and down movement of the bar frame can drive the short single-rod L-shaped rod, the long single L-shaped rod, the short double L-shaped rod, and the long double L-shaped rod to move reciprocatingly up and down, the short single-rod L-shaped rod, the long single L-shaped rod, the short double L-shaped rod, and the long double L-shaped rod to move reciprocatingly up and down, and finally drive the first knocking plate and the second knocking plate to move reciprocatingly up and down, the first knocking plate and the second knocking plate move reciprocatingly up and down to repeatedly knock the heat sink group, thereby cleaning up large impurities on the surface of the heat sink group, thereby preventing large impurities from affecting the efficiency of the heat sink group and improving the heat dissipation efficiency of the heat sink group. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a 220 kV transformer with high efficiency heat dissipation is provided for the present invention; Figure 2 The present invention proposes a 220 kV transformer with high efficiency heat dissipation Figure 1 A schematic diagram of the structure from another angle; Figure 3 The present invention proposes a 220 kV transformer with high efficiency heat dissipation Figure 2 Another angle structural diagram; Figure 4 The present invention proposes a 220 kV transformer with high efficiency heat dissipation Figure 1 Schematic diagram of the three-dimensional structure at A in the middle;

[0021] Figure 5 The present invention proposes a 220 kV transformer with high efficiency heat dissipation Figure 2 Schematic diagram of the three-dimensional structure at B in the middle.

[0022] Legend: 1. Transformer body; 2. Beating device; 201. Vertical plate; 202. Vertical groove; 203. L-shaped plate; 204. Bar frame; 205. Short single L-shaped rod; 206. Long single L-shaped rod; 207. First beat plate; 208. Long double L-shaped rod; 209. Short double L-shaped rod; 210. Second beat plate; 211. Motor; 212. Special-shaped gear; 3. Fixing device; 31. Groove; 32. Slide plate; 33. Rectangular plate; 34. Spring; 35. Limit rod; 36. Inspection door; 37. Through hole; 4. Air cooler; 5. Cold air duct; 6. Cooling pipe; 7. Air outlet; 8. Heat sink assembly. DETAILED DESCRIPTION

[0023] Embodiment 1, as Figure 1-5 As shown, a 220 kV transformer with efficient heat dissipation includes a transformer body 1, and the four sides of the transformer body 1 are provided with heat sink groups 8. The top surface of the transformer body 1 is provided with a knocking device 2 for knocking the heat sink group 8 to knock off large impurities on the surface thereof, thereby achieving self-cleaning of the heat sink group 8 and improving the subsequent heat dissipation effect of the heat sink group 8.

[0024] Reference Figure 2-5As shown, in this embodiment: a vertical plate 201 is fixedly installed on the top surface of the transformer body 1, a vertical groove 202 is opened on the surface of the vertical plate 201, an L-shaped plate 203 is slidably connected inside the vertical groove 202, a strip frame 204 is fixedly installed on one end of the L-shaped plate 203 away from the vertical groove 202, a short single L-shaped rod 205 and a long single L-shaped rod 206 are fixedly installed on the left and right side surfaces of the strip frame 204, and a first knocking plate 207 is fixedly installed on the ends of the short single L-shaped rod 205 and the long single L-shaped rod 206 away from the strip frame 204, and a long double L-shaped rod 208 and a short double L-shaped rod 209 are fixedly installed on the front and rear side surfaces of the strip frame 204, respectively. A second striking plate 210 is fixedly installed at one end of the strip frame 204, a motor 211 is fixedly installed on the surface of the vertical plate 201, and a special-shaped gear 212 is fixedly installed at the output end of the motor 211. The teeth on the surface of the special-shaped gear 212 are only one-third, and the inner wall surfaces on both sides of the strip frame 204 are provided with tooth-like structures. The special-shaped gear 212 and the tooth-like structures on the inner wall surfaces on both sides of the strip frame 204 are meshed. When the transformer body 1 is working, the heat sink group 8 will export the heat inside the transformer body 1, and then when the air cooler 4 is started, the cold air output by the air cooler 4 will enter the interior of the cooling pipe 6 through the cold air pipe 5, and then be output from the air outlet 7 from the interior of the cooling pipe 6 to cool the heat sink group 8, thereby ensuring that the transformer body The normal operation of the body 1, when the surface of the heat sink group 8 is covered with large impurities after the transformer body 1 has been used for a long time, when the large impurities on the heat sink group 8 need to be cleaned, the motor 211 can be started, and the motor 211 starts to drive the special-shaped gear 212 to rotate. When the special-shaped gear 212 rotates and engages with the tooth-like structure on the left inner wall surface of the bar frame 204, the bar frame 204 moves downward, and the bar frame 204 moves downward to drive the L-shaped plate 203 to move downward inside the vertical groove 202. At the same time, the bar frame 204 moves downward to also drive the short single-rod L-shaped rod, the long single-root L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 to move downward. The L-shaped rod 209 and the long double L-shaped rod 208 move downward and respectively drive the first knocking plate 207 and the second knocking plate 210 to move downward. The first knocking plate 207 and the second knocking plate 210 move downward to knock the heat sink group 8, causing the heat sink group 8 to vibrate, thereby knocking off large impurities on the surface of the heat sink group 8. When the special-shaped gear 212 rotates and engages with the tooth-like structure on the right inner wall surface of the bar frame 204, the bar frame 204 moves upward. The upward movement of the bar frame 204 drives the L-shaped plate 203 to move upward inside the vertical groove 202. At the same time, the upward movement of the bar frame 204 also drives the short single-rod L-shaped rod, the long single L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 to move upward.The short single L-shaped rod, the long single L-shaped rod 206, the short double L-shaped rod 209, and the long double L-shaped rod 208 move upwards to respectively drive the first knocking plate 207 and the second knocking plate 210 to move upwards. The first knocking plate 207 and the second knocking plate 210 move upwards to separate themselves from the surface of the heat sink group 8. As the motor 211 drives the special-shaped gear 212 to rotate continuously, the bar frame 204 can move up and down reciprocatingly. The reciprocating up and down movement of the bar frame 204 can drive the short single L-shaped rod, the long single L-shaped rod 206, the short double L-shaped rod 209, and the long double L-shaped rod 208 to move upwards. The rod 209 and the long double L-shaped rod 208 move up and down reciprocatingly, and the short single L-shaped rod, the long single L-shaped rod 206, the short double L-shaped rod 209, and the long double L-shaped rod 208 move up and down reciprocatingly, and finally drive the first knocking plate 207 and the second knocking plate 210 to move up and down reciprocatingly, and the first knocking plate 207 and the second knocking plate 210 move up and down reciprocatingly to knock the heat sink group 8 repeatedly, so as to clean the large impurities on the surface of the heat sink group 8, thereby preventing the large impurities from affecting the efficiency of the heat sink group 8 and improving the heat dissipation efficiency of the heat sink group 8.

[0025] Reference Figure 1-2 As shown, in this embodiment: a plurality of vertically distributed cooling pipes 6 are fixedly provided on the outside of the heat sink group 8, a plurality of air outlets 7 are evenly opened on the inside of the cooling pipe 6, an air cooler 4 is provided on the bottom surface of the transformer body 1, and the interior of the air cooler 4 is composed of a water pump, a water tank, a wet curtain and a fan, and a cold air duct 5 is connected between the air cooler 4 and the cooling pipe 6. The setting of the air cooler 4 has the effect of generating cold air, and the setting of the cold air duct 5 has the effect of conveying the cold air generated by the air cooler 4 into the interior of the cooling pipe 6, and the setting of the air outlet 7 has the effect of blowing the cold air inside the cooling pipe 6 toward the heat sink group 8.

[0026] Reference Figure 1-4As shown, in this embodiment: a fixing device 3 is provided on one side surface of the air cooler 4 for convenient maintenance of the internal components of the air cooler 4, the fixing device 3 includes a groove 31, the groove 31 is opened on one side surface of the air cooler 4, a slide plate 32 is slidably connected inside the groove 31, a limit rod 35 is fixedly installed on the surface of the slide plate 32, an inspection door 36 is slidably connected inside the air cooler 4, a through hole 37 is opened on the surface of the inspection door 36, an end of the limit rod 35 away from the slide plate 32 is plugged into the through hole 37, a rectangular plate 33 is fixedly installed on one side surface of the air cooler 4, a spring 34 is fixedly installed between the rectangular plate 33 and the slide plate 32, when the air cooler 4 needs to be maintained daily in the later stage, First, slide the slide plate 32 so that the slide plate 32 moves inside the groove 31. The movement of the slide plate 32 inside the groove 31 will squeeze the spring 34, so that the spring 34 is compressed. At the same time, the movement of the slide plate 32 inside the groove 31 also drives the limit rod 35 to move. The movement of the limit rod 35 causes itself to move out from the inside of the through hole 37. The limit rod 35 and the through hole 37 are separated, so that the inspection door 36 and the air cooler 4 lose the limit. At this time, the inspection door 36 can be pulled out from the inside of the air cooler 4. At this time, the water pump, water tank, wet curtain and fan inside the air cooler 4 can be maintained, thereby avoiding the air cooler 4 from failing and being unable to be maintained, which has an adverse effect on the heat dissipation of the transformer body 1.

[0027] Working principle: when the transformer body 1 is working, the heat sink group 8 will extract the heat from the inside of the transformer body 1, and then when the air cooler 4 is started, the cold air output by the air cooler 4 will enter the inside of the cooling pipe 6 through the cold air pipe 5, and then be output from the inside of the cooling pipe 6 from the air outlet 7 to cool the heat sink group 8, thereby ensuring the normal operation of the transformer body 1. After the transformer body 1 has been used for a long time, when the surface of the heat sink group 8 is covered with large impurities and the large impurities on the heat sink group 8 need to be cleaned, the motor 211 can be started, and the motor 211 starts to drive the special-shaped gear 212 to rotate. When the special-shaped gear 212 rotates and meshes with the tooth-like structure on the left inner wall surface of the bar frame 204, the bar frame 204 will move downward. The bar frame 204 moves downward, driving the L-shaped plate 203 to move downward inside the vertical groove 202. At the same time, the bar frame 204 moves downward, and also drives the short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 to move downward. The short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 move downward, respectively driving the first knocking plate 207 and the second knocking plate 210 to move downward. The first knocking plate 207 and the second knocking plate 210 move downward to knock the heat sink group 8, causing the heat sink group 8 to vibrate, thereby knocking off large impurities on the surface of the heat sink group 8. When the special-shaped gear 212 rotates and engages with the tooth-like structure on the right inner wall surface of the bar frame 204, When the bar frame 204 is moved upward, the upward movement of the bar frame 204 drives the L-shaped plate 203 to move upward inside the vertical groove 202. At the same time, the upward movement of the bar frame 204 also drives the short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 to move upward. The short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 move upward and respectively drive the first knocking plate 207 and the second knocking plate 210 to move upward. The first knocking plate 207 and the second knocking plate 210 move upward to separate themselves from the surface of the heat sink group 8. As the motor 211 drives the special-shaped gear 212 to rotate continuously, the bar frame 204 can move up and down reciprocatingly. The reciprocating up and down movement of the bar frame 204 can drive the short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 to move reciprocatingly up and down. The reciprocating up and down movement of the short single-rod L-shaped rod, the long single-rod L-shaped rod 206, the short double-root L-shaped rod 209, and the long double-root L-shaped rod 208 finally drive the first knocking plate 207 and the second knocking plate 210 to move reciprocatingly up and down. The first knocking plate 207 and the second knocking plate 210 move reciprocatingly up and down to repeatedly knock the heat sink group 8, thereby cleaning the large impurities on the surface of the heat sink group 8, thereby preventing the large impurities from affecting the efficiency of the heat sink group 8 and improving the heat dissipation efficiency of the heat sink group 8. When the air cooler 4 needs to be maintained at a later stage, the slide plate 32 can be slid first.The slide plate 32 moves inside the groove 31. The movement of the slide plate 32 inside the groove 31 squeezes the spring 34, causing the spring 34 to be compressed. At the same time, the movement of the slide plate 32 inside the groove 31 also drives the limit rod 35 to move. The limit rod 35 moves so that it moves out of the through hole 37. The limit rod 35 and the through hole 37 are separated, so that the inspection door 36 and the air cooler 4 lose the limit. At this time, the inspection door 36 can be pulled out from the inside of the air cooler 4. At this time, the water pump, water tank, wet curtain and fan inside the air cooler 4 can be maintained, thereby avoiding the air cooler 4 from failing and being unable to be maintained, which has an adverse effect on the heat dissipation of the transformer body 1.

[0028] The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A 220 kV transformer with high heat dissipation efficiency, comprising a transformer body (1), wherein four surfaces of the transformer body (1) are provided with heat sink groups (8), characterized in that: The top surface of the transformer body (1) is provided with a knocking device (2) for knocking the heat sink group (8) to knock off large impurities on the surface thereof, thereby achieving self-cleaning of the heat sink group (8) and further improving the subsequent heat dissipation effect of the heat sink group (8).

2. A 220 kV transformer with high heat dissipation efficiency according to claim 1, characterized in that: A vertical plate (201) is fixedly mounted on the top surface of the transformer body (1); a vertical groove (202) is provided on the surface of the vertical plate (201); an L-shaped plate (203) is slidably connected inside the vertical groove (202); and a bar frame (204) is fixedly mounted on one end of the L-shaped plate (203) away from the vertical groove (202).

3. A 220 kV transformer with high heat dissipation efficiency according to claim 2, characterized in that: A short single L-shaped rod (205) and a long single L-shaped rod (206) are respectively fixedly mounted on the left and right side surfaces of the bar frame (204); and a first knocking plate (207) is fixedly mounted on the ends of the short single L-shaped rod (205) and the long single L-shaped rod (206) away from the bar frame (204).

4. A 220 kV transformer with high heat dissipation efficiency according to claim 3, characterized in that: Long double L-shaped rods (208) and short double L-shaped rods (209) are respectively fixedly mounted on the front and rear side surfaces of the bar frame (204); and second knocking plates (210) are fixedly mounted on the ends of the long double L-shaped rods (208) and the short double L-shaped rods (209) away from the bar frame (204).

5. A 220 kV transformer with high heat dissipation efficiency according to claim 4, characterized in that: A motor (211) is fixedly mounted on the surface of the vertical plate (201), and a special-shaped gear (212) is fixedly mounted on the output end of the motor (211).

6. A 220 kV transformer with high heat dissipation efficiency according to claim 5, characterized in that: The toothed teeth on the surface of the special-shaped gear (212) account for only one third of the total number of teeth. The inner wall surfaces on both sides of the bar frame (204) are provided with tooth-like structures. The special-shaped gear (212) and the tooth-like structures on the inner wall surfaces on both sides of the bar frame (204) are meshed.

7. A 220 kV transformer with high heat dissipation efficiency according to claim 6, characterized in that: A plurality of vertically distributed cooling pipes (6) are fixedly provided on the outside of the heat sink group (8), a plurality of air outlets (7) are evenly provided on the inside of the cooling pipe (6), a cooling fan (4) is provided on the bottom surface of the transformer body (1), a water pump, a water tank, a wet curtain and a fan are provided inside the cooling fan (4), and a cooling air pipe (5) is connected between the cooling fan (4) and the cooling pipe (6).

8. A 220 kV transformer with high heat dissipation efficiency according to claim 7, characterized in that: A fixing device (3) is provided on one side surface of the air cooler (4) for facilitating the inspection of internal components of the air cooler (4), the fixing device (3) comprising a groove (31), the groove (31) being provided on one side surface of the air cooler (4), the interior of the groove (31) being slidably connected with a slide plate (32).

9. A 220 kV transformer with high heat dissipation efficiency according to claim 8, characterized in that: A limit rod (35) is fixedly mounted on the surface of the slide plate (32); an inspection door (36) is slidably connected to the interior of the air cooler (4); a through hole (37) is provided on the surface of the inspection door (36); and one end of the limit rod (35) away from the slide plate (32) is plugged into the through hole (37).

10. A 220 kV transformer with high heat dissipation efficiency according to claim 9, characterized in that: A rectangular plate (33) is fixedly mounted on one side surface of the cooling fan (4), and a spring (34) is fixedly mounted between the rectangular plate (33) and the slide plate (32).

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