An oil-circulating cooled power transformer

Abstract

The invention discloses an oil circulation cooling type power transformer, and relates to the technical field of oil-immersed transformers. The oil circulation cooling type power transformer comprises an oil-immersed transformer, and two cleaning and scraping components are installed inside the sediment cleaning component, and the cleaning and scraping components comprise a cleaning plate, a cleaning cavity, a ball shaft, a ball groove and bristles. The invention makes it convenient for the bristles to clean the attachments on the surface of the electromagnetic winding by contacting the bristles with the electromagnetic winding, and can effectively clean the attachments on the surface of the electromagnetic winding, such as dust, oil stains, etc., keep the surface of the electromagnetic winding clean, reduce the temperature rise of the electromagnetic winding, improve the heat dissipation efficiency of the oil-immersed transformer, and extend the service life of the oil-immersed transformer. The ball shaft rotates in the ball groove, so that the bristles can cover various parts of the surface of the electromagnetic winding, and the cleaning effect is more uniform, thereby improving the cleaning efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil-immersed transformers, in particular to an oil circulation cooling type power transformer. Background Art

[0002] Oil-immersed transformer is a common power equipment used to convert high voltage to low voltage or vice versa, while ensuring the efficiency and safety of power transmission. It is mainly composed of oil-immersed insulation system and iron core winding. Insulating oil not only serves as electrical insulation material, but also has cooling, anti-corrosion, arc extinguishing and other functions. When the transformer is working, the insulating oil acts as an insulating medium to ensure the stable distribution of the electric field between the windings and prevent breakdown and discharge. The transformer will generate a certain amount of heat when working, and the insulating oil is responsible for conducting this heat to the surface of the transformer casing. The external radiator controls the operating temperature of the transformer by cooling the insulating oil to keep it within a safe range. As the transformer runs for a long time, some sediment and impurities will accumulate in the insulating oil, which may affect the performance and life of the transformer. In order to keep the insulating oil clean, various cleaning devices and sewage systems are usually designed to remove sediment and impurities regularly.

[0003] After the existing oil-immersed transformers have been used for a long time, a high-pressure and high-temperature environment will be generated inside the oil-immersed transformer. The oil is easily oxidized and degraded under high-temperature and high-pressure conditions, forming acidic substances and sediments. And over time, the oil may penetrate moisture and absorb pollutants such as dust, metal particles or other impurities, which may cause the oil's insulation performance to deteriorate and increase the friction and wear of the oil-immersed transformer. Oxidation and moisture penetration will reduce its insulation performance and increase the risk of short circuits inside the transformer. Acidic substances and sediments in the transformer oil will affect its fluidity and heat dissipation capabilities, causing the transformer to operate at an increased temperature, affecting efficiency and life. Acidic substances can corrode metal parts inside the transformer, including windings and cores, which may lead to equipment performance degradation and increased maintenance costs. During the operation of the transformer, the high temperature and high pressure in the oil may lead to the generation of gases, such as hydrogen and methane, which may accumulate in the oil, form bubbles, reduce the oil's insulation performance, and increase the pressure inside the oil-immersed transformer. Summary of the invention

[0004] In view of the disadvantage that impurities and sediments adhere to the outer side of the electromagnetic winding inside the oil-immersed transformer in the prior art after long-term use of the oil-immersed transformer, the present invention provides an oil circulation cooling power transformer, which solves the problem of cleaning the impurities and sediments adhered to the outer side of the electromagnetic winding inside the oil-immersed transformer after long-term use of the oil-immersed transformer.

[0005] In order to achieve the purpose of keeping the outer side of the electromagnetic winding of the oil-immersed transformer clean and free of attachments after long-term use, the present invention is implemented through the following technical scheme: an oil circulation cooling power transformer, comprising an oil-immersed transformer, an oil immersion tank is installed inside the oil-immersed transformer, an electromagnetic winding is installed inside the oil immersion tank, an oil storage tank is installed on the outer surface of the oil-immersed transformer, a circulating oil component is installed inside the oil-immersed transformer, a refueling component is installed inside the oil-immersed transformer, a sediment cleaning component is installed on the inner surface of the oil immersion tank, and the sediment cleaning component Two blowing and stirring cleaning components are installed inside, two cleaning and scraping components are installed inside the sediment cleaning component, a dirt removal component is installed inside the oil immersion tank, the cleaning and scraping component includes a cleaning plate, a cleaning cavity, a ball shaft, a ball groove and bristles, a cleaning plate is fixedly connected to the outside of the sediment cleaning component, a cleaning cavity is opened inside the cleaning plate, ball grooves are evenly distributed on the inner wall of the cleaning cavity, a ball shaft is movably installed on the inner wall of the ball groove, and bristles are fixedly connected to the outside of the ball shaft, and one end surface of the bristles is movably in contact with the outer surface of the electromagnetic winding.

[0006] Furthermore, the dirt removal assembly includes a dirt suction chamber, a dirt removal pipe and a valve. The dirt suction chamber is opened inside the oil immersion box, and a dirt removal pipe is installed inside the oil immersion box. One end surface of the dirt removal pipe extends to the inside of the dirt suction chamber, and the other end surface of the dirt removal pipe extends to the outside of the oil-immersed transformer. A ball valve is installed inside the dirt removal pipe.

[0007] Furthermore, the circulating oil assembly includes an oil suction pipe, an inclined suction pipe and a circulating oil pump. The circulating oil pump is installed on the inner surface of the oil immersion tank, one end of the circulating oil pump is fixedly connected to the oil suction pipe, and the outer surface of the oil suction pipe is installed with an inclined suction pipe, and one end surface of the inclined suction pipe extends to the interior of the sewage suction chamber.

[0008] Furthermore, the circulating oil assembly also includes a protective net and an oil pipe. The protective net is installed on the inner wall of the inclined suction pipe. The other end of the circulating oil pump is fixedly connected to the oil pipe. One end surface of the oil pipe extends to the inside of the oil storage tank.

[0009] Furthermore, the refueling assembly includes a refueling pump, a first oil outlet pipe and a second oil outlet pipe. The refueling pump is installed on the inner surface of the oil immersion tank, the first oil outlet pipe is installed on one end surface of the refueling pump, and the second oil outlet pipe is installed on the other end surface of the refueling pump. One end surface of the second oil outlet pipe extends to the inside of the oil storage tank.

[0010] Furthermore, the sediment cleaning assembly includes a rotating motor, a reciprocating screw, a limit column and a screw slider. The inner side of the oil immersion tank is fixedly connected to the rotating motor, the outer surface of the output end of the rotating motor is fixedly connected to the reciprocating screw, and the interior of the oil immersion tank is installed with a limit column, and the number of the limit columns is two.

[0011] Furthermore, the sediment cleaning assembly also includes a screw slider, a connecting plate and a blowing and stirring cleaning assembly. The outer surface of the reciprocating screw is movably mounted with a screw slider, the outer surface of the screw slider is mounted with a connecting plate, the number of the connecting plates is two, and the outer surface of the connecting plate is mounted with a blowing and stirring cleaning assembly.

[0012] Furthermore, the interior of the screw slider is in active contact with the outer surfaces of the two limiting columns, and one end surface of the connecting plate is fixedly connected to one end surface of the cleaning plate.

[0013] Furthermore, the blowing, stirring and cleaning assembly includes a gear bar and a rotating column, the inner surface of the connecting plate is installed with a gear bar, and the interior of the electromagnetic winding is evenly distributed and movably installed with a rotating column.

[0014] Furthermore, the blowing, stirring and cleaning assembly also includes a driven gear and a fan blade. The driven gear is installed on one end surface of the rotating column, and the outer surface of the driven gear is meshed with the outer surface of the driving gear. The fan blade is installed on the other end surface of the rotating column.

[0015] The present invention has the following beneficial effects:

[0016] 1. The oil circulation cooling power transformer makes the brush bristles contact with the electromagnetic winding, so that the ball shaft rotates in the ball groove, so that the brush bristles can easily clean the attachments on the surface of the electromagnetic winding. The brush bristles contact with the electromagnetic winding, which can effectively clean the attachments on the surface of the electromagnetic winding, such as dust, oil stains, etc., and keep the surface of the electromagnetic winding clean, which helps to reduce the temperature rise of the electromagnetic winding, improve the heat dissipation efficiency of the oil-immersed transformer, and extend the service life of the oil-immersed transformer. The ball shaft rotates in the ball groove, so that the brush bristles can cover all parts of the surface of the electromagnetic winding, and the cleaning effect is more uniform, which improves the cleaning efficiency, especially in large oil-immersed transformers and other equipment, the effect is more significant.

[0017] 2. The oil circulation cooling power transformer can effectively reduce the temperature of the electromagnetic winding and improve the cooling effect of the oil-immersed transformer by blowing the surface of the electromagnetic winding through the fan blades, which helps to keep the oil-immersed transformer within the normal operating temperature range and prevent failures caused by overheating. The reciprocating rotation of the fan blades can drive the oil inside the oil immersion tank to stir, so that the oil flows more evenly, which helps to improve the heat dissipation and cooling effect, prevent local overheating of the oil or dead corners, and maintain the temperature uniformity and stability of the oil. The fan blades stir the oil to eliminate bubbles, reduce the existence of these local gaps, and improve the insulation performance of the insulating oil, thereby ensuring the safe operation of the oil-immersed transformer. Stirring the oil to eliminate bubbles can make the oil more evenly distributed, which helps to eliminate local hot spots, improve the heat dissipation efficiency of the oil-immersed transformer, and extend the service life of the equipment.

[0018] 3. The oil circulation cooling power transformer sucks the oil in the oil immersion tank through the oil suction pipe and the inclined suction pipe, and then sends the oil back to the oil storage tank through the oil delivery pipe, realizing the circulation of oil. The function of the circulating oil pump is to maintain the circulation of oil to keep the temperature inside the oil-immersed transformer within a safe range and effectively cool the electromagnetic winding. The refueling pump sucks the oil in the oil storage tank through the second oil outlet pipe, and then adds the oil to the oil immersion tank through the first oil outlet pipe. The refueling pump maintains a sufficient amount of oil inside the oil immersion tank to ensure the normal operation and insulation performance of the oil-immersed transformer.

[0019] 4. The oil circulation cooling power transformer cooperates with the dirt suction chamber, the dirt removal pipeline and the ball valve. When the ball valve is opened, a large amount of oil, sediment and impurities are discharged from the dirt removal pipeline, and part of the sediment and impurities are sucked into the dirt suction chamber, thereby effectively removing impurities in the oil. The design of the protective net can prevent a large amount of sediment and impurities from entering the inclined suction pipe, ensuring that the sucked oil is relatively clean. Regularly discharging a large amount of sediment and impurities can maintain the cleanliness of the oil, which is helpful to maintain the normal operation of the oil-immersed transformer.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the refueling assembly of the present invention;

[0023] Figure 3 This is a schematic diagram of the overall structure of the circulating oil assembly of the present invention;

[0024] Figure 4 This is a schematic diagram of the overall structure of the oil immersion tank of the present invention;

[0025] Figure 5 This is a schematic diagram of the overall structure of the dirt removal component of the present invention;

[0026] Figure 6 This is a schematic diagram of the overall structure of the sediment cleaning assembly of the present invention;

[0027] Figure 7 This is a schematic diagram of the overall structure of the blowing, stirring and cleaning component of the present invention;

[0028] Figure 8 This is a schematic diagram of the overall structure of the cleaning and scraping assembly of the present invention.

[0029] In the figure: 1. oil-immersed transformer; 2. circulating oil assembly; 21. oil suction pipe; 22. oil delivery pipe; 23. inclined suction pipe; 24. protective net; 25. circulating oil pump; 3. refueling assembly; 31. refueling pump; 32. first oil outlet pipe; 33. second oil outlet pipe; 4. electromagnetic winding; 5. oil immersion tank; 6. oil storage tank; 7. sediment cleaning assembly; 71. rotating motor; 72. reciprocating screw; 73. limit column; 74. screw slider; 75. connecting plate; 76. blowing stirring cleaning assembly; 761. gear bar; 762. rotating column; 763. driven gear; 764. fan blade; 8. cleaning and scraping assembly; 81. cleaning chamber; 82. ball shaft; 83. ball groove; 84. bristles; 85. cleaning plate; 9. decontamination assembly; 91. dirt suction chamber; 92. decontamination pipeline; 93. ball valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] Embodiment 1

[0033] refer to Figure 1 , Figure 4 and Figure 5The embodiment of the present invention provides a technical solution: an oil circulation cooling power transformer, comprising an oil-immersed transformer 1, an oil immersion tank 5 is installed inside the oil-immersed transformer 1, an electromagnetic winding 4 is installed inside the oil immersion tank 5, an oil storage tank 6 is installed on the outer surface of the oil-immersed transformer 1, two cleaning and scraping components 8 are installed inside the sediment cleaning component 7, a decontamination component 9 is installed inside the oil immersion tank 5, and the decontamination component 9 includes a dirt suction cavity 91, a decontamination pipeline 92 and a valve, a dirt suction cavity 91 is opened inside the oil immersion tank 5, a decontamination pipeline 92 is installed inside the oil immersion tank 5, and one end surface of the decontamination pipeline 92 extends to Inside the dirt suction chamber 91, the other end surface of the dirt removal pipe 92 extends to the outside of the oil-immersed transformer 1. A ball valve 93 is installed inside the dirt removal pipe 92. When the ball valve 93 is opened, a large amount of oil, sediment and impurities are discharged from the dirt removal pipe 92, and part of the sediment and impurities are sucked into the dirt suction chamber 91, thereby effectively removing impurities in the oil. The design of the protective net 24 can prevent a large amount of sediment and impurities from entering the inclined suction pipe 23, ensuring that the sucked oil is relatively clean. Regularly discharging a large amount of sediment and impurities can maintain the cleanliness of the oil, which helps to maintain the normal operation of the oil-immersed transformer 1.

[0034] Embodiment 2

[0035] refer to Figure 1 , Figure 2 and Figure 3The embodiment of the present invention provides a technical solution: an oil circulation cooling power transformer, comprising an oil-immersed transformer 1, an oil immersion tank 5 is installed inside the oil-immersed transformer 1, an electromagnetic winding 4 is installed inside the oil immersion tank 5, an oil storage tank 6 is installed on the outer surface of the oil-immersed transformer 1, a circulating oil assembly 2 is installed inside the oil-immersed transformer 1, and an oil filling assembly 3 is installed inside the oil-immersed transformer 1. The circulating oil assembly 2 comprises an oil suction pipe 21, an inclined suction pipe 23 and a circulating oil pump 25. The inner surface of the oil immersion tank 5 is installed with the circulating oil pump 25, one end of the circulating oil pump 25 is fixedly connected with the oil suction pipe 21, the outer surface of the oil suction pipe 21 is installed with the inclined suction pipe 23, and one end surface of the inclined suction pipe 23 extends to the inside of the sewage suction chamber 91, the circulating oil assembly 2 also comprises a protective net 24 and an oil delivery pipe 22, the inner wall of the inclined suction pipe 23 is installed with the protective net 24, the other end of the circulating oil pump 25 is fixedly connected with the oil delivery pipe 22, and one end surface of the oil delivery pipe 22 extends to the inside of the sewage suction chamber 91, Extending into the oil storage tank 6, the refueling assembly 3 includes a refueling pump 31, a first oil outlet pipe 32 and a second oil outlet pipe 33. The refueling pump 31 is installed on the inner surface of the oil immersion tank 5, and the first oil outlet pipe 32 is installed on one end surface of the refueling pump 31. The second oil outlet pipe 33 is installed on the other end surface of the refueling pump 31. One end surface of the second oil outlet pipe 33 extends into the oil storage tank 6. The oil in the oil immersion tank 5 is sucked in through the oil suction pipe 21 and the inclined suction pipe 23, and then the oil is sent back to the oil storage tank 6 through the oil delivery pipe 22, thereby realizing the circulation of oil. The function of the circulating oil pump 25 is to maintain the circulation of oil to keep the temperature inside the oil-immersed transformer 1 within a safe range and effectively cool the electromagnetic winding 4. The refueling pump 31 sucks the oil in the oil storage tank 6 through the second oil outlet pipe 33, and then adds the oil to the oil immersion tank 5 through the first oil outlet pipe 32. The refueling pump 31 maintains a sufficient amount of oil inside the oil immersion tank 5 to ensure the normal operation and insulation performance of the oil-immersed transformer 1.

[0036] Embodiment 3

[0037] refer to Figure 1 , Figure 4 , Figure 6 and Figure 8The embodiment of the present invention provides a technical solution: an oil circulation cooling power transformer, comprising an oil-immersed transformer 1, an oil immersion tank 5 is installed inside the oil-immersed transformer 1, an electromagnetic winding 4 is installed inside the oil immersion tank 5, an oil storage tank 6 is installed on the outer surface of the oil-immersed transformer 1, a sediment cleaning component 7 is installed on the inner surface of the oil immersion tank 5, a cleaning scraping component 8 includes a cleaning plate 85, a cleaning cavity 81, a ball shaft 82, a ball groove 83 and bristles 84, a cleaning plate 85 is fixedly connected to the outer side of the sediment cleaning component 7, and a cleaning plate 85 is provided inside the cleaning plate 85. The cleaning chamber 81 has ball grooves 83 evenly distributed on the inner wall of the cleaning chamber 81, and a ball shaft 82 is movably installed on the inner wall of the ball groove 83. The outer side of the ball shaft 82 is fixedly connected with a brush 84, and one end surface of the brush 84 is in movably contact with the outer surface of the electromagnetic winding 4. The sediment cleaning component 7 includes a rotating motor 71, a reciprocating screw 72, a limit column 73 and a screw slider 74. The inner side of the oil immersion box 5 is fixedly connected with the rotating motor 71, and the outer surface of the output end of the rotating motor 71 is fixedly connected with the reciprocating screw 72. The inner side of the oil immersion box 5 is fixedly connected with the rotating motor 71. The outer surface of the output end of the rotating motor 71 is fixedly connected with the reciprocating screw 72. The inner side of the oil immersion box 5 is installed with a limit column 73, the number of the limiting columns 73 is two, the sediment cleaning assembly 7 also includes a screw slider 74, a connecting plate 75 and a blowing stirring cleaning assembly 76, the outer surface of the reciprocating screw 72 is movably mounted with a screw slider 74, the outer surface of the screw slider 74 is mounted with a connecting plate 75, the number of the connecting plates 75 is two, the outer surface of the connecting plate 75 is mounted with a blowing stirring cleaning assembly 76, the interior of the screw slider 74 is in movably contact with the outer surfaces of the two limiting columns 73, and one end surface of the connecting plate 75 is fixedly connected to one end surface of the cleaning plate 85, The bristles 84 are in contact with the electromagnetic winding 4, which can effectively clean the attachments on the surface of the electromagnetic winding 4, such as dust, oil, etc., and keep the surface of the electromagnetic winding 4 clean, which helps to reduce the temperature rise of the electromagnetic winding 4, improve the heat dissipation efficiency of the oil-immersed transformer 1, and extend the service life of the oil-immersed transformer 1. The ball shaft 82 rotates in the ball groove 83, so that the bristles 84 can cover various parts of the surface of the electromagnetic winding 4, and the cleaning effect is more uniform, which improves the cleaning efficiency, especially in large oil-immersed transformers 1 and other equipment, the effect is more significant.

[0038] Embodiment 4

[0039] refer to Figure 1 , Figure 4 , Figure 6 and Figure 7The embodiment of the present invention provides a technical solution: an oil circulation cooling power transformer, comprising an oil-immersed transformer 1, an oil immersion tank 5 is installed inside the oil-immersed transformer 1, an electromagnetic winding 4 is installed inside the oil immersion tank 5, an oil storage tank 6 is installed on the outer surface of the oil-immersed transformer 1, two blowing and stirring cleaning components 76 are installed inside the sediment cleaning component 7, the blowing and stirring cleaning component 76 includes a gear bar 761 and a rotating column 762, the inner surface of the connecting plate 75 is installed with a gear bar 761, the electromagnetic winding 4 is evenly and movably installed inside, the blowing and stirring cleaning component 76 also includes a driven gear 763 and a fan sheet 764, one end surface of the rotating column 762 is installed with a driven gear 763, the outer surface of the driven gear 763 is meshed with the outer surface of the driving gear, and the other end surface of the rotating column 762 is installed with a fan sheet 764 By blowing the surface of the electromagnetic winding 4 through the fan blades 764, the temperature of the electromagnetic winding 4 can be effectively reduced, the cooling effect of the oil-immersed transformer 1 can be improved, and it is helpful to keep the oil-immersed transformer 1 within the normal operating temperature range to prevent failures caused by overheating. The reciprocating rotation of the fan blades 764 can drive the oil inside the immersion oil tank 5 to stir, so that the oil flows more evenly, which helps to improve the heat dissipation and cooling effect, and can prevent local overheating of the oil or dead corners, and maintain the temperature uniformity and stability of the oil. The fan blades 764 stir the oil to eliminate bubbles, reduce the existence of these local gaps, and improve the insulation performance of the insulating oil, thereby ensuring the safe operation of the oil-immersed transformer 1. Stirring the oil to eliminate bubbles can make the oil more evenly distributed, which helps to eliminate local hot spots, improve the heat dissipation efficiency of the oil-immersed transformer 1, and extend the service life of the equipment.

[0040] The working principle and use process of the present invention are as follows: after the oil-immersed transformer 1 has been working for a long time, sediment and gas will be generated in the oil immersion tank 5, and as time goes by, water may penetrate into the oil and pollutants such as dust, metal particles or other impurities may be absorbed. When the oil-immersed transformer 1 is working, the circulating oil pump 25 and the refueling pump 31 work at the same time. The circulating oil pump 25 sucks the oil from the oil immersion tank 5 through the oil suction pipe 21 and the inclined suction pipe 23, and then transports it to the oil storage tank 6 through the oil delivery pipe 22. The refueling pump 31 then sucks the oil in the oil storage tank 6 through the second oil outlet pipe 33, and then adds the oil to the oil immersion tank 5 through the first oil outlet pipe 32. The oil in the oil immersion tank 5 is circulated in the oil pump 25, and the oil in the oil immersion tank 5 is sucked in through the oil suction pipe 21 and the inclined suction pipe 23, and then the oil is sent back to the oil storage tank 6 through the oil delivery pipe 22, so that the oil circulation is realized. The function of the circulating oil pump 25 is to maintain the circulation of the oil to keep the temperature inside the oil-immersed transformer 1 within a safe range and effectively cool the electromagnetic winding 4. The refueling pump 31 sucks the oil in the oil storage tank 6 through the second oil outlet pipe 33, and then adds the oil to the oil immersion tank 5 through the first oil outlet pipe 32. The refueling pump 31 maintains a sufficient amount of oil in the oil immersion tank 5 to ensure the normal operation and insulation performance of the oil-immersed transformer 1.

[0041] When the oil-immersed transformer 1 is working, the controller controls the rotating motor 71 to work, the rotating motor 71 drives the reciprocating screw 72 to rotate, the reciprocating screw 72 cooperates with the screw slider 74, and under the limiting action of the two limiting columns 73, the screw slider 74 stably moves back and forth in a straight line, the screw slider 74 stably drives the two connecting plates 75 to move back and forth in a straight line, the connecting plates 75 synchronously drive the cleaning block to move back and forth in a straight line, the cleaning block synchronously drives the ball shaft 82 and the bristles 84 to move back and forth in a straight line, the bristles 84 contact with the electromagnetic winding 4, and the ball shaft 82 rotates in the ball groove 83 The movement makes it convenient for the bristles 84 to clean the attachments on the surface of the electromagnetic winding 4. The bristles 84 contact with the electromagnetic winding 4, which can effectively clean the attachments on the surface of the electromagnetic winding 4, such as dust, oil, etc., and keep the surface of the electromagnetic winding 4 clean, which helps to reduce the temperature rise of the electromagnetic winding 4, improve the heat dissipation efficiency of the oil-immersed transformer 1, and extend the service life of the oil-immersed transformer 1. The ball shaft 82 rotates in the ball groove 83, so that the bristles 84 can cover various parts of the surface of the electromagnetic winding 4, and the cleaning effect is more uniform, which improves the cleaning efficiency, especially in large oil-immersed transformers 1 and other equipment, the effect is more significant.

[0042] When the connecting plate 75 synchronously performs a reciprocating linear motion, the connecting plate 75 synchronously drives the gear bar 761 to perform a reciprocating linear motion, the outer surface of the gear bar 761 meshes with the outer surface of the driven gear 763, and the gear bar 761 drives the driven gear 763 to perform a back-and-forth rotational motion, so that the rotating column 762 performs a back-and-forth reciprocating rotational motion, and the rotating column 762 synchronously drives the fan sheet 764 to perform a back-and-forth reciprocating rotational motion, so that the fan sheet 764 blows the surface of the electromagnetic winding 4, and synchronously stirs the oil inside the oil immersion tank 5. By blowing the surface of the electromagnetic winding 4 by the fan sheet 764, the temperature of the electromagnetic winding 4 can be effectively reduced, and the cooling effect of the oil-immersed transformer 1 can be improved. It helps to keep the oil-immersed transformer 1 within the normal operating temperature range and prevent malfunctions caused by overheating. The reciprocating rotation of the fan blades 764 can drive the oil inside the oil immersion tank 5 to stir, allowing the oil to flow more evenly, which helps to improve the heat dissipation and cooling effects, and can prevent local overheating of the oil or dead corners, and maintain the temperature uniformity and stability of the oil. The fan blades 764 stir the oil to eliminate bubbles, reduce the existence of these local gaps, and improve the insulating properties of the insulating oil, thereby ensuring the safe operation of the oil-immersed transformer 1. Stirring the oil to eliminate bubbles can make the oil more evenly distributed, which helps to eliminate local hot spots, improve the heat dissipation efficiency of the oil-immersed transformer 1, and extend the service life of the equipment.

[0043] Under the operation of the circulating oil pump 25, the inclined suction pipe 23 and the oil suction pipe 21 allow part of the sediment and impurities to enter the sewage suction chamber 91, and the protective net 24 prevents a large amount of sediment and impurities from entering the inclined suction pipe 23. After the oil-immersed transformer 1 stops working, the ball valve 93 is opened to discharge a large amount of oil, sediment and impurities from the decontamination pipe 92, and part of the sediment and impurities are sucked into the sewage suction chamber 91, thereby effectively removing impurities in the oil. The design of the protective net 24 can prevent a large amount of sediment and impurities from entering the inclined suction pipe 23, ensuring that the sucked oil is relatively clean. Regularly discharging a large amount of sediment and impurities can maintain the cleanliness of the oil, which helps to maintain the normal operation of the oil-immersed transformer 1.

Claims

1. An oil circulation cooling power transformer, comprising an oil-immersed transformer (1), an oil immersion tank (5) being installed inside the oil-immersed transformer (1), an electromagnetic winding (4) being installed inside the oil immersion tank (5), and an oil storage tank (6) being installed on the outer surface of the oil-immersed transformer (1), characterized in that: A circulating oil component (2) is installed inside the oil-immersed transformer (1), a refueling component (3) is installed inside the oil-immersed transformer (1), a sediment cleaning component (7) is installed on the inner surface of the oil-immersed tank (5), two blowing and stirring cleaning components (76) are installed inside the sediment cleaning component (7), two cleaning and scraping components (8) are installed inside the sediment cleaning component (7), and a decontamination component (9) is installed inside the oil-immersed tank (5); The cleaning and scraping component (8) comprises a cleaning plate (85), a cleaning chamber (81), a ball shaft (82), a ball groove (83) and bristles (84); the cleaning plate (85) is fixedly connected to the outside of the sediment cleaning component (7); the cleaning chamber (81) is provided inside the cleaning plate (85); the inner wall of the cleaning chamber (81) is provided with ball grooves (83) evenly distributed; the inner wall of the ball groove (83) is movably mounted with a ball shaft (82); the outer side of the ball shaft (82) is fixedly connected to the bristles (84); one end surface of the bristles (84) is in movably contact with the outer surface of the electromagnetic winding (4); The sediment cleaning assembly (7) comprises a rotating motor (71), a reciprocating screw (72), a limiting column (73) and a screw slider (74); the rotating motor (71) is fixedly connected to the inner side of the oil immersion tank (5); the reciprocating screw (72) is fixedly connected to the outer surface of the output end of the rotating motor (71); the limiting column (73) is installed inside the oil immersion tank (5); the number of the limiting columns (73) is two; The sediment cleaning assembly (7) further comprises a screw slider (74), a connecting plate (75) and a blowing stirring cleaning assembly (76), wherein the outer surface of the reciprocating screw (72) is movably mounted with the screw slider (74), the outer surface of the screw slider (74) is mounted with a connecting plate (75), the number of the connecting plates (75) is two, and the outer surface of the connecting plate (75) is mounted with a blowing stirring cleaning assembly (76); The interior of the screw slider (74) is in active contact with the outer surfaces of the two stopper posts (73), and one end surface of the connecting plate (75) is fixedly connected to one end surface of the cleaning plate (85); The blowing stirring cleaning assembly (76) comprises a gear bar (761) and a rotating column (762), the gear bar (761) is mounted on the inner surface of the connecting plate (75), and the rotating column (762) is evenly and movably mounted inside the electromagnetic winding (4); The blowing, stirring and cleaning assembly (76) further comprises a driven gear (763) and a fan blade (764); the driven gear (763) is mounted on one end surface of the rotating column (762); the outer surface of the driven gear (763) meshes with the outer surface of the driving gear; and the fan blade (764) is mounted on the other end surface of the rotating column (762).

2. The oil circulation cooling power transformer according to claim 1, characterized in that: The dirt removal assembly (9) comprises a dirt suction chamber (91), a dirt removal pipe (92) and a valve. The dirt suction chamber (91) is provided inside the oil immersion box (5). The dirt removal pipe (92) is installed inside the oil immersion box (5). One end surface of the dirt removal pipe (92) extends to the inside of the dirt suction chamber (91), and the other end surface of the dirt removal pipe (92) extends to the outside of the oil-immersed transformer (1). A ball valve (93) is installed inside the dirt removal pipe (92).

3. The oil circulation cooling power transformer according to claim 1, characterized in that: The circulating oil assembly (2) comprises an oil suction pipe (21), an inclined suction pipe (23) and a circulating oil pump (25); the circulating oil pump (25) is mounted on the inner surface of the oil immersion tank (5); one end of the circulating oil pump (25) is fixedly connected to the oil suction pipe (21); the outer surface of the oil suction pipe (21) is mounted with the inclined suction pipe (23); one end surface of the inclined suction pipe (23) extends to the interior of the sewage suction chamber (91).

4. The oil circulation cooling power transformer according to claim 3 is characterized in that: The circulating oil assembly (2) further comprises a protective net (24) and an oil delivery pipe (22); the protective net (24) is installed on the inner wall of the inclined suction pipe (23); the other end of the circulating oil pump (25) is fixedly connected to the oil delivery pipe (22); and one end surface of the oil delivery pipe (22) extends into the interior of the oil storage tank (6).

5. The oil circulation cooling power transformer according to claim 1, characterized in that: The refueling assembly (3) comprises a refueling pump (31), a first oil outlet pipe (32) and a second oil outlet pipe (33); the refueling pump (31) is mounted on the inner surface of the oil immersion tank (5); the first oil outlet pipe (32) is mounted on one end surface of the refueling pump (31); the second oil outlet pipe (33) is mounted on the other end surface of the refueling pump (31); and one end surface of the second oil outlet pipe (33) extends into the interior of the oil storage tank (6).

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