Transformer oil tank heat dissipation device with liquid cooling medium circulation function

Abstract

The invention relates to the technical field of transformer oil tank heat dissipation, and discloses a transformer oil tank heat dissipation device with a liquid cooling medium circulation function, and the transformer oil tank heat dissipation device comprises a transformer oil tank body and a cooling circulation box. According to the cooling device for the transformer oil tank, the cooling assemblies at the front end and the rear end of the transformer oil tank body can be rapidly cooled from outside to inside, and the cooling assemblies have the liquid cooling effect on the basis that the cooling assemblies have the air cooling effect; the high-pressure pump compresses cooling water into mist and penetrates through gaps of heat dissipation fins of the heat dissipation assembly, the heat dissipation fins make uniform contact with the water mist, meanwhile, the spraying head is arranged over the heat dissipation assembly, the cooling water sprayed out of the spraying head is the cooling water flowing in the spraying plate, the cooling water falls over the heat dissipation assembly from top to bottom, and the cooling water is sprayed out of the spraying plate. The heat dissipation efficiency of the heat dissipation assembly is improved to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of transformer oil tank heat dissipation, in particular to a transformer oil tank heat dissipation device with a liquid cooling medium circulation function. Background Art

[0002] The transformer tank is the core external structural component of the oil-immersed transformer. Its main function is to seal and contain the transformer oil, iron core, winding, etc., and it also plays two core roles: insulation protection and heat dissipation circulation. The current transformer oil tank heat dissipation technology mainly relies on air cooling structure, which increases the contact area with the air through the heat dissipation fins to achieve heat exchange. However, in high temperature environment or when the transformer is running under high load, the heat dissipation efficiency of simple air cooling is limited, and it is difficult to quickly reduce the oil tank temperature. There are problems such as heat dissipation lag and heat accumulation. Especially for large-capacity transformers, dust and oil easily accumulate in the gaps between the heat dissipation fins, further reducing the heat dissipation efficiency. Although there are solutions for using liquid cooling to assist heat dissipation in the existing technology, most of them use immersion or pipeline circulation cooling methods. The immersion structure makes the transformer bulky and difficult to maintain, and the pipeline Circulating cooling has the defects of limited heat exchange area and uneven cooling, and cannot effectively cover the complex structure of the heat sink fins. In addition, traditional spray cooling devices often use a simple water flushing method, which not only consumes a lot of water, but also has large water droplet size and is difficult to penetrate the dense heat sink fin gaps, resulting in insufficient contact between the cooling water and the heat sink, low cooling efficiency, and lack of a cooling water recycling mechanism, resulting in water resource waste. Therefore, there is an urgent need for a transformer oil tank cooling device that can combine air cooling and high-efficiency liquid cooling, realize cooling water atomization penetration, evenly cover the heat sink components and have cooling water recycling function. Summary of the Invention

[0003] (1) Technical problems solved In response to the deficiencies in the prior art, the present invention provides a transformer oil tank heat dissipation device with a liquid cooling medium circulation function. The present invention uses a designed high-pressure pump and a spray plate, so that the device can quickly cool the heat dissipation components at the front and rear ends of the transformer oil tank body from the outside to the inside, so that the heat dissipation components have a liquid cooling effect on the basis of air cooling, and a number of high-pressure atomizing nozzles are arranged at one end of the spray plate close to the heat dissipation component. The high-pressure pump compresses the cooling water into mist and passes it through the gaps in the heat dissipation fins of the heat dissipation component, so that the heat dissipation fins are evenly in contact with the water mist. At the same time, a spray head is arranged directly above the heat dissipation component. The cooling water sprayed from the spray head is also the cooling water flowing in the spray plate, so that the cooling water falls from top to bottom directly above the heat dissipation component, thereby improving the heat dissipation efficiency of the heat dissipation component to a certain extent.

[0004] (2) Technical solution In order to solve the above technical problems, the present invention provides the following technical solutions: a transformer oil tank heat dissipation device with a liquid cooling medium circulation function, comprising a transformer oil tank body and a cooling circulation box, a heat dissipation component fixedly connected in the middle of the front and rear end surfaces of the transformer oil tank body, a water receiving trough fixedly connected below the front and rear end surfaces of the transformer oil tank body, a spray plate fixedly connected to the left and right end surfaces of the water receiving trough, a high-pressure atomizing nozzle fixedly connected to the end surface of the spray plate close to the heat dissipation component, an extension pipe fixedly connected to the top of the spray plate, a spray head fixedly connected to the end of the extension pipe away from the spray plate, and a water outlet hole is provided at the bottom of the spray head.

[0005] Preferably, the cooling circulation box is fixedly connected to a water suction pipe on the left side and the middle lower part of the front end face, the water suction pipe is fixedly connected to the high-pressure pump at one end away from the cooling circulation box, the output end of the high-pressure pump is fixedly connected to the second water supply pipe, and the end of the second water supply pipe away from the high-pressure pump is fixedly connected to the middle part below the outer end face of the spray plate, the right lower part of the front end face of the cooling circulation box is fixedly connected to the first water supply pipe, the end of the first water supply pipe away from the cooling circulation box is fixedly connected to the water suction pump, the water suction pump input end is fixedly connected to the right lower part inside the water receiving trough, the rear end face of the cooling circulation box is fixedly connected to the piezoelectric ceramic vibration heat sink, the front end face of the piezoelectric ceramic vibration heat sink is fixedly connected to the heat pipe, which can quickly cool down the heat dissipation components at the front and rear ends of the transformer oil tank body from the outside to the inside, the high-pressure pump compresses the cooling water into mist and passes through the gaps in the heat dissipation fins of the heat dissipation component, so that the heat dissipation fins are evenly in contact with the water mist, so that the heat dissipation component has a liquid cooling effect on the basis of air cooling.

[0006] Preferably, there are two groups of spray plates, and the spray plates are distributed on the left and right end surfaces of the heat dissipation component. The heat dissipation component is composed of a number of fins with intervals. The number of high-pressure atomizing nozzles on the inner end surface of the spray plate is several, and the distribution positions of the high-pressure atomizing nozzles on the inner end surface of the spray plate are aligned with the gaps between the fins of the heat dissipation component. The high-pressure pump compresses the cooling water into mist and passes it through the gaps between the heat dissipation fins of the heat dissipation component, so that the heat dissipation fins are evenly in contact with the water mist. At the same time, the sprayed water mist will also form wind flow, thereby improving the heat dissipation efficiency of the heat dissipation component.

[0007] Preferably, there are several spray heads, and the water outlet of the spray head is located directly above the heat dissipation component. The front and rear spray range of the water outlet matches the front and rear length of the heat dissipation component. The cooling water sprayed from the spray head is also the cooling water flowing in the spray plate, so that the cooling water falls from top to bottom directly above the heat dissipation component, thereby improving the heat dissipation efficiency of the heat dissipation component to a certain extent.

[0008] Preferably, a connecting pipe is provided between the input end of the water pump and the water receiving tank, and the connecting pipe is communicated with the lower right side of the water receiving tank, so that the cooling water collected in the water receiving tank can be fed into the cooling circulation box for cooling through the water pump.

[0009] Preferably, the heat pipe is U-shaped as a whole and fixed at the lower position inside the cooling circulation box, and the first water supply pipe and two sets of water extraction pipes on the front end face of the cooling circulation box are both located above the heat pipe. The rear end face of the cooling circulation box is provided with a piezoelectric ceramic vibration heat sink, which is connected to the heat pipe at the lower part of the cooling circulation box, and can quickly cool down the cooling water with increased temperature. The cooled cooling water is then pumped out again by the high-pressure pump, and dissipates heat to the heat dissipation component from the spray plate and the spray head, allowing the cooling water to be recycled.

[0010] Preferably, a filter frame is slidably connected to the front upper side of the interior of the cooling circulation box, a coarse filter layer is fixedly connected to the front side of the inner wall of the filter frame, a medium-efficiency layer is fixedly connected to the middle of the inner wall of the filter frame, and a fine filter layer is fixedly connected to the rear side of the inner wall of the filter frame. The cooling water entering the cooling circulation box through the water pump and the first water pipe can be filtered to prevent dirt on the surface of the heat dissipation component from entering the cooling circulation box with the cooling water.

[0011] Preferably, the longitudinal section of the filter frame is T-shaped, and a through groove running from top to bottom is opened on the upper front side of the interior of the cooling circulation box, and the length and width of the through groove match the length and width of the bottom of the filter frame. The connection between the filter frame and the cooling circulation box is fixed by bolts, which makes it convenient for operators to regularly clean the coarse filter layer, medium efficiency layer and fine filter layer in the filter frame.

[0012] Preferably, the coarse filter layer is made of stainless steel sintered mesh, and the pore size of the coarse filter layer is 80-100μm, the medium-efficiency layer is made of a combination of nylon woven mesh and a magnetic grating composite layer, the surface layer is nylon 66 woven mesh with a pore size of 40±5μm, the bottom layer is a neodymium iron boron magnetic grating array, and the spacing of the neodymium iron boron magnetic grating array is 10mm, the fine filter layer is made of PP melt-blown ultrafine fiber, and the pore size of the fine filter layer is 5-20μm, the coarse filter layer mainly intercepts particulate impurities such as rust, large particles of sediment, etc., which can avoid excessive impurities and cause clogging of pump bodies such as water pumps and high-pressure pumps. The medium-efficiency layer can filter fine dust and sludge, and adsorb ferromagnetic wear particles in the circulating water to avoid wear inside the transformer due to ferromagnetic wear particles, and the fine filter layer can adsorb colloids, microorganisms and some heavy metal ions to avoid discoloration of cooling water after long-term circulation.

[0013] Compared with the prior art, the present invention provides a transformer oil tank heat dissipation device with a liquid cooling medium circulation function, which has the following beneficial effects: 1. Compared with the prior art, the present invention uses a designed high-pressure pump and a spray plate, so that the device can quickly cool the heat dissipation components at the front and rear ends of the transformer oil tank body from the outside to the inside, so that the heat dissipation components have a liquid cooling effect on the basis of air cooling. A number of high-pressure atomizing nozzles are set at one end of the spray plate close to the heat dissipation component. The high-pressure pump compresses the cooling water into mist and passes it through the gaps between the heat dissipation fins of the heat dissipation component, so that the heat dissipation fins are evenly in contact with the water mist. At the same time, a spray head is set just above the heat dissipation component. The cooling water sprayed from the spray head is also the cooling water flowing in the spray plate. The cooling water is allowed to fall from top to bottom directly above the heat dissipation component, which improves the heat dissipation efficiency of the heat dissipation component to a certain extent, and the water dripping from the surface of the heat dissipation component is collected by the water receiving tank and concentrated in the cooling circulation box at the bottom of the water receiving tank. The rear end face of the cooling circulation box is provided with a piezoelectric ceramic vibrating heat sink, which is connected to the heat pipe at the bottom of the cooling circulation box, which can quickly cool down the cooling water with increased temperature. The cooled cooling water is then pumped out again by the high-pressure pump and dissipated from the spray plate and the spray head to dissipate heat to the heat dissipation component, so that the cooling water can be recycled, which reduces the overall use cost of the equipment to a certain extent.

[0014] 2. Compared with the prior art, the present invention uses a designed filter frame and its internal coarse filter layer, medium efficiency layer and fine filter layer to enable the device to filter the cooling water entering the cooling circulation box through the water pump and the first water pipe. The coarse filter layer is made of stainless steel sintered mesh with a pore size of 80-100μm, which mainly intercepts particulate impurities such as rust and large particles of sediment, etc., to avoid excessive impurities that lead to clogging of the water pump and high-pressure pump. The medium efficiency layer is made of a combination of nylon braided mesh and a magnetic grid composite layer. The surface layer is nylon 66 braided mesh with a pore size of 40±5μm, and the bottom layer is a neodymium iron boron magnetic grid array with a spacing of 10mm, can filter fine dust and sludge, and absorb ferromagnetic wear particles in the circulating water to avoid wear inside the transformer due to ferromagnetic wear particles. The fine filter layer is made of PP melt-blown microfiber with a pore size of 5-20μm. It mainly absorbs colloids, microorganisms and some heavy metal ions to avoid discoloration of cooling water after long-term circulation. At the same time, the coarse filter layer, medium efficiency layer and fine filter layer are all in the filter frame. The filter frame is installed in the front side of the cooling circulation box. The installation method is to insert from top to bottom and fix it with bolts, which is convenient for operators to regularly clean the coarse filter layer, medium efficiency layer and fine filter layer in the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the transformer oil tank body of the present invention; Figure 3 This is a schematic diagram of the overall structure of the water receiving trough of the present invention; Figure 4 This is a schematic diagram of the overall structure of the spray plate of the present invention; Figure 5 Schematic diagram of the longitudinal cross-section structure of the sprinkler head of the present invention; Figure 6 This is a schematic diagram of the overall structure of the cooling circulation box of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the top of the cooling circulation box of the present invention; Figure 8 This is a schematic diagram of the overall structure of the filter frame of the present invention; Figure 9 It is a schematic diagram of the cross-sectional distribution structure of the coarse filter layer, medium efficiency layer and fine filter layer of the present invention.

[0016] Among them: 1. Transformer oil tank body; 101. Heat dissipation component; 2. Water receiving trough; 201. Spray plate; 202. Extension pipe; 203. Spray head; 204. High-pressure atomizing nozzle; 205. Water outlet; 3. Cooling circulation box; 301. Water pump; 302. First water pipe; 303. Water pipe; 304. High-pressure pump; 305. Second water pipe; 306. Piezoelectric ceramic vibration heat sink; 307. Heat pipe; 4. Filter frame; 401. Coarse filter layer; 402. Medium-efficiency layer; 403. Fine filter layer. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1 to 7 The figure shows a transformer oil tank heat dissipation device with a liquid cooling medium circulation function, comprising a transformer oil tank body 1 and a cooling circulation box 3. A heat dissipation component 101 is arranged between the front and rear end surfaces of the transformer oil tank body 1. A water receiving trough 2 is fixed below the front and rear end surfaces of the transformer oil tank body 1 by bolts. Spray plates 201 are welded to the left and right end surfaces of the water receiving trough 2. A high-pressure atomizing nozzle 204 is arranged on one end surface of the spray plate 201 close to the heat dissipation component 101. An extension pipe 202 is connected to the top of the spray plate 201 via a flange. A spray head 203 is arranged on the end of the extension pipe 202 away from the spray plate 201. A water outlet hole 205 is provided at the bottom of the spray head 203. The left side of the front end face and the lower middle part of the cooling circulation box 3 are connected to the water pumping pipe 303 through flanges. The end of the water pumping pipe 303 away from the cooling circulation box 3 is connected to the high-pressure pump 304 through a flange. The output end of the high-pressure pump 304 is connected to the second water supply pipe 305 through a flange. The end of the second water supply pipe 305 away from the high-pressure pump 304 is fixedly connected to the middle part below the outer end face of the spray plate 201. The lower right side of the front end face of the cooling circulation box 3 is connected to the first water supply pipe 302 through a flange. The end of the first water supply pipe 302 away from the cooling circulation box 3 is connected to the water pump 301 through a flange. The input end of the water pump 301 is fixedly connected to the lower right side inside the water receiving tank 2. A piezoelectric ceramic vibration heat sink 306 is provided on the rear end face of the cooling circulation box 3, and a heat pipe 307 is provided on the front end face of the piezoelectric ceramic vibration heat sink 306.

[0019] In this embodiment, the heat dissipation components 101 at the front and rear ends of the transformer oil tank body 1 can be quickly cooled from the outside to the inside. The high-pressure pump 304 compresses the cooling water into mist and passes it through the gaps between the heat dissipation fins of the heat dissipation component 101, so that the heat dissipation fins are evenly in contact with the water mist, allowing the heat dissipation component 101 to have a liquid cooling effect on the basis of air cooling.

[0020] In an optional embodiment: the number of spray plates 201 is two groups, and the spray plates 201 are distributed on the left and right end surfaces of the heat dissipation component 101, the heat dissipation component 101 is composed of a plurality of fins with spacing, and the number of high-pressure atomizing nozzles 204 on the inner end surface of the spray plate 201 is a plurality, and the distribution position of the high-pressure atomizing nozzles 204 on the inner end surface of the spray plate 201 is aligned with the gaps between the fins of the heat dissipation component 101.

[0021] In this embodiment, the high-pressure pump 304 compresses the cooling water into mist and passes it through the gaps between the heat dissipation fins of the heat dissipation component 101, so that the heat dissipation fins are evenly in contact with the water mist. At the same time, the sprayed water mist also forms wind flow, thereby improving the heat dissipation efficiency of the heat dissipation component 101.

[0022] In an optional embodiment, there are several spray heads 203 , and the water outlets 205 of the spray heads 203 are located directly above the heat dissipation component 101 , and the front and rear spraying range of the water outlets 205 matches the front and rear length of the heat dissipation component 101 .

[0023] In this embodiment, the cooling water sprayed from the spray head 203 is also the cooling water flowing in the spray plate 201 , so that the cooling water falls from top to bottom directly above the heat dissipation component 101 , thereby improving the heat dissipation efficiency of the heat dissipation component 101 to a certain extent.

[0024] In an optional embodiment, a connecting pipe is provided between the input end of the water pump 301 and the water receiving tank 2 , and the connecting pipe is communicated with the lower right side of the water receiving tank 2 .

[0025] In this embodiment, the cooling water collected in the water receiving tank 2 can be fed into the cooling circulation box 3 through the water pump 301 for cooling.

[0026] In an optional embodiment: the heat pipe 307 is U-shaped as a whole and is fixed at the lower position inside the cooling circulation box 3, and the first water supply pipe 302 and the two sets of water extraction pipes 303 on the front end face of the cooling circulation box 3 are both above the heat pipe 307, and the rear end face of the cooling circulation box 3 is provided with a piezoelectric ceramic vibration heat sink 306.

[0027] In this embodiment: the heat pipe 307 connected to the bottom of the cooling circulation box 3 can quickly cool down the cooling water with increased temperature. The cooled cooling water is then pumped out again by the high-pressure pump 304 and dissipates heat to the heat dissipation component 101 through the spray plate 201 and the spray head 203, allowing the cooling water to be recycled.

[0028] Example 2: Please refer to Figures 8 and 9 As shown: the filter frame 4 is longitudinally inserted into the upper front side of the cooling circulation box 3, a coarse filter layer 401 is set on the front side of the inner wall of the filter frame 4, a medium-efficiency layer 402 is set in the middle of the inner wall of the filter frame 4, and a fine filter layer 403 is set on the rear side of the inner wall of the filter frame 4.

[0029] In this embodiment, the cooling water entering the cooling circulation box 3 through the water pump 301 and the first water pipe 302 can be filtered to prevent dirt on the surface of the heat dissipation component 101 from entering the cooling circulation box 3 along with the cooling water.

[0030] In an optional embodiment: the longitudinal section of the filter frame 4 is T-shaped, a through groove from top to bottom is opened on the upper front side of the interior of the cooling circulation box 3, and the length and width of the through groove match the length and width of the bottom of the filter frame 4, and the connection between the filter frame 4 and the cooling circulation box 3 is fixed by bolts.

[0031] In this embodiment, it is convenient for operators to regularly clean the coarse filter layer 401 , the medium filter layer 402 and the fine filter layer 403 in the filter frame 4 .

[0032] In an optional embodiment: the coarse filter layer 401 is made of stainless steel sintered mesh, and the pore size of the coarse filter layer 401 is 80-100μm, the medium efficiency layer 402 is made of a combination of a nylon woven mesh and a magnetic grating composite layer, the surface layer is a nylon 66 woven mesh with a pore size of 40±5μm, the bottom layer is a neodymium iron boron magnetic grating array, the spacing of the neodymium iron boron magnetic grating array is 10mm, and the fine filter layer 403 is made of PP melt-blown microfiber, and the pore size of the fine filter layer 403 is 5-20μm.

[0033] In this embodiment: the coarse filter layer 401 mainly intercepts particulate impurities such as rust and large particles of sediment, etc., which can prevent excessive impurities from clogging the pump body of the water pump 301 and the high-pressure pump 304. The medium-efficiency layer 402 can filter fine dust and sludge, and adsorb ferromagnetic wear particles in the circulating water to avoid wear inside the transformer due to ferromagnetic wear particles. The fine filter layer 403 can adsorb colloids, microorganisms and some heavy metal ions to prevent the cooling water from discoloring after long-term circulation.

[0034] Working principle: Before use, pour cooling water into the water receiving tank 2 below the heat dissipation component 101, turn on the water pump 301, and the water pump 301 will pump the cooling water out of the water receiving tank 2 through the connecting pipe, and pass it into the cooling circulation box 3 through the first water pipe 302. Open the piezoelectric ceramic vibration heat sink 306 on the rear end face of the cooling circulation box 3. The heat pipe 307 at the front end of the piezoelectric ceramic vibration heat sink 306 is designed at the bottom of the cooling circulation box 3 to cool the cooling water. Then insert the filter frame 4 from top to bottom into the through groove on the front side of the cooling circulation box 3. After the filter frame 4 reaches the bottom of the cooling circulation box 3, it is fixed with bolts. The preparation work is completed. When in use, turn on the high-pressure pump 304 located below the left and right sides of the spray plate 201. The high-pressure pump 304 extracts the cooling water from the cooling circulation box 3 through the water extraction pipe 303 and sends the cooling water into the spray plate 201 through the second water delivery pipe 305. A part of the cooling water entering the spray plate 201 is sprayed with water mist on the left and right sides of the heat dissipation components 101 at the front and rear ends of the transformer oil tank body 1 through the high-pressure atomizing nozzle 204, while the other part of the cooling water flows to the upper extension pipe 202 and reaches the spray head connected to the extension pipe 202. 203, the water outlet 205 at the bottom of the sprinkler head 203 is poured from top to bottom on the top of the heat dissipation component 101, and the cooling water dripping from the surface of the heat dissipation component 101 takes away the temperature of the heat dissipation component 101 and is concentrated in the water receiving tank 2. At this time, the water pump 301 is not turned off, and the cooling water in the water receiving tank 2 is continuously injected into the cooling circulation box 3 to realize the recycling of the cooling water. The cooling water entering the cooling circulation box 3 through the first water delivery pipe 302 needs to pass through the coarse filter layer 401, the medium efficiency layer 402 and the fine filter layer 403 inside the filter frame 4. The filter layer 403 and the coarse filter layer 401 are made of stainless steel sintered mesh with a pore size of 80-100μm. They mainly intercept particulate impurities such as rust and large particles of sediment, which can prevent excessive impurities from clogging the pump bodies of the water pump 301 and the high-pressure pump 304. The intermediate layer 402 is made of a combination of nylon woven mesh and magnetic grid composite layer. The surface layer is nylon 66 woven mesh with a pore size of 40±5μm, and the bottom layer is a neodymium iron boron magnetic grid array with a spacing of 10mm, which can filter fine dust and oil sludge. It also absorbs ferromagnetic wear particles in the circulating water to avoid wear inside the transformer caused by ferromagnetic wear particles. The fine filter layer 403 is made of PP melt-blown ultrafine fiber with a pore size of 5-20μm. It mainly absorbs colloids, microorganisms and some heavy metal ions to avoid discoloration of the cooling water after long-term circulation. After the cooling water is filtered, the heat will be taken away by the heat pipe 307 at the front end of the piezoelectric ceramic vibration heat sink 306, and will be pumped out of the cooling circulation box 3 again by the high-pressure pump 304 through the water extraction pipe 303.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A transformer oil tank heat dissipation device with a liquid cooling medium circulation function, comprising a transformer oil tank body (1) and a cooling circulation box (3), characterized in that: A heat dissipation component (101) is fixedly connected between the front and rear end surfaces of the transformer oil tank body (1), a water receiving trough (2) is fixedly connected below the front and rear end surfaces of the transformer oil tank body (1), a spray plate (201) is fixedly connected to the left and right end surfaces of the water receiving trough (2), a high-pressure atomizing nozzle (204) is fixedly connected to one end surface of the spray plate (201) close to the heat dissipation component (101), an extension tube (202) is fixedly connected to the top of the spray plate (201), and a spray head (203) is fixedly connected to one end of the extension tube (202) away from the spray plate (201), and a water outlet hole (205) is provided at the bottom of the spray head (203).

2. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 1, characterized in that: The cooling circulation box (3) is fixedly connected to a water pumping pipe (303) on the left side and the middle lower portion of the front end face. The water pumping pipe (303) is fixedly connected to a high-pressure pump (304) at one end away from the cooling circulation box (3). The output end of the high-pressure pump (304) is fixedly connected to a second water delivery pipe (305). The end of the second water delivery pipe (305) away from the high-pressure pump (304) is fixedly connected to the middle lower portion of the outer end face of the spray plate (201). The cooling circulation box (3) is fixedly connected to a first water delivery pipe (302) at the lower right side of the front end face. The end of the first water delivery pipe (302) away from the cooling circulation box (3) is fixedly connected to the water pump (301). The input end of the water pump (301) is fixedly connected to the lower right side of the inside of the water receiving tank (2). The cooling circulation box (3) is fixedly connected to a piezoelectric ceramic vibration heat sink (306) at the rear end face. The front end face of the piezoelectric ceramic vibration heat sink (306) is fixedly connected to a heat pipe (307).

3. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 1, characterized in that: The number of the spray plates (201) is two, and the spray plates (201) are distributed on the left and right end surfaces of the heat dissipation component (101). The heat dissipation component (101) is composed of a plurality of fins with intervals. The number of the high-pressure atomizing nozzles (204) on the inner end surfaces of the spray plates (201) is a plurality, and the distribution positions of the high-pressure atomizing nozzles (204) on the inner end surfaces of the spray plates (201) are aligned with the gaps between the fins of the heat dissipation component (101).

4. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 1, characterized in that: The number of the spray heads (203) is several, and the water outlet holes (205) of the spray heads (203) are located directly above the heat dissipation component (101), and the front and rear spray ranges of the water outlet holes (205) match the front and rear lengths of the heat dissipation component (101).

5. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 2, characterized in that: A connecting pipe is provided between the input end of the water pump (301) and the water receiving trough (2), and the connecting pipe is in communication with the lower right side of the water receiving trough (2).

6. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 2, characterized in that: The heat pipe (307) is fixed in a U-shaped position inside the cooling circulation box (3) at a lower position, and the first water delivery pipe (302) and the two sets of water pumping pipes (303) on the front end surface of the cooling circulation box (3) are both located above the heat pipe (307).

7. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 2, characterized in that: A filter frame (4) is slidably connected to the front upper side of the interior of the cooling circulation box (3); a coarse filter layer (401) is fixedly connected to the front side of the inner wall of the filter frame (4); a medium-efficiency layer (402) is fixedly connected to the middle of the inner wall of the filter frame (4); and a fine filter layer (403) is fixedly connected to the rear side of the inner wall of the filter frame (4).

8. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 7, characterized in that: The longitudinal section of the filter frame (4) is T-shaped, and a through groove extending from top to bottom is provided on the upper front side of the interior of the cooling circulation box (3), and the length and width of the through groove match the length and width of the bottom of the filter frame (4), and the connection between the filter frame (4) and the cooling circulation box (3) is fixed by bolts.

9. The transformer oil tank heat dissipation device with liquid cooling medium circulation function according to claim 7, characterized in that: The coarse filter layer (401) is made of a stainless steel sintered mesh, and the pore size of the coarse filter layer (401) is 80-100 μm. The medium-efficiency layer (402) is made of a combination of a nylon woven mesh and a magnetic grid composite layer, the surface layer is a nylon 66 woven mesh, the pore size of which is 40±5 μm, and the bottom layer is a neodymium iron boron magnetic grid array, the spacing of the neodymium iron boron magnetic grid array is 10 mm, and the fine filter layer (403) is made of PP melt-blown ultrafine fibers, and the pore size of the fine filter layer (403) is 5-20 μm.

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