Primary energy efficiency oil-immersed power transformer

Abstract

The utility model belongs to the technical field of power transformation equipment, and particularly relates to a first-level energy efficiency oil-immersed power transformer which comprises a protective shell. The side wall of the top of the protective shell is fixedly connected with a hanging plate. A plurality of bases are fixedly connected to the side wall of the bottom of the protective shell; a plurality of radiators are fixedly connected to the middle part of the side wall of the protective shell; a plurality of sleeves are arranged on the side wall of the top of the protective shell; a water storage tank is fixedly connected to the side wall of the top of the hanging plate; an oil tank is fixedly connected to the inner side wall of the bottom of the protective shell; by arranging the water storage tank, the oil tank, the oil pump and the oil conveying pipe, transformer oil can be cooled in a water cooling mode, the temperature of the transformer oil can be more effectively reduced through the cooling mode, then the overall operation temperature of the oil-immersed power transformer is reduced, the load capacity of the transformer can be improved, and the service life of the transformer can be prolonged. And the cooling water can quickly absorb and take away heat of the transformer oil, so that the hot oil is quickly cooled, the heat exchange efficiency can be improved, and accumulation of heat in the transformer is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transformation equipment, specifically an oil-immersed power transformer with first-level energy efficiency. Background Technique

[0002] An oil-immersed power transformer refers to a power transformer whose internal structure and key components (such as windings) are immersed in transformer oil. This design not only utilizes the insulating properties of the transformer oil but also achieves effective cooling of the transformer interior through the flow and circulation of the oil, ensuring the transformer operates in an efficient and stable state.

[0003] In the prior art, after installers transport the oil-immersed power transformer to the installation location, they fix it according to the design requirements to ensure the transformer is stable and does not shake. Subsequently, accessories such as radiators, oil tanks, and bushings are installed, and the corresponding pipes and cables are connected. Then, the oil-immersed power transformer starts to operate normally.

[0004] During long-term use and observation, it is found that during the operation of the oil-immersed power transformer, if the temperature of the transformer oil is too high, it will cause the aging of the internal structure and key components of the oil-immersed power transformer to accelerate, thereby shortening the overall service life of the transformer.

[0005] Therefore, the utility model provides an oil-immersed power transformer with first-level energy efficiency. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve at least one problem proposed in the background technique, an oil-immersed power transformer with first-level energy efficiency is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the first-level energy-efficient oil-immersed power transformer described in the utility model includes a protective shell; the top side wall of the protective shell is fixedly connected to a hanging plate; the bottom side wall of the protective shell is fixedly connected to multiple bases; the middle part of the side wall of the protective shell is fixedly connected to multiple radiators; the top side wall of the protective shell is provided with multiple sleeves; the top side wall of the hanging plate is fixedly connected to a water tank; the bottom inner side wall of the protective shell is fixedly connected to an oil tank; the bottom inner wall of the water tank is fixedly connected to an oil pump; the oil pumping end of the oil pump is arranged inside the oil tank; the oil outlet end of the oil pump is fixedly connected to an oil pipeline; the oil pipeline is fixedly connected to the water tank; the The other end of the oil pipeline is arranged inside the oil tank; a water receiving assembly is provided on the top side wall of the water storage tank; a temperature measuring assembly is installed in the middle of the side wall of the protective shell; in this step, by arranging the water storage tank, the oil tank, the oil pump and the oil pipeline, the transformer oil can be cooled by water cooling. This cooling method can more effectively reduce the temperature of the transformer oil, thereby reducing the overall operating temperature of the oil-immersed power transformer, which helps to improve the load capacity and service life of the transformer, and the cooling water can quickly absorb and take away the heat of the transformer oil, so that the hot oil can be quickly cooled. This method can improve the heat exchange efficiency and reduce the accumulation of heat in the transformer.

[0008] Preferably, a water pump is fixedly connected to the side wall of the top of the hanging plate; the water pumping end of the water pump is arranged inside the water tank; the water outlet end of the water pump is fixedly connected to a water pipe; a water spraying rod is fixedly connected to the middle of the side wall of the water pipe; there are multiple water spraying rods and they are evenly distributed on the side wall of the water pipe; the water tank, water pump, water pipe and water spraying rod are connected; this step can reduce the temperature of the oil-immersed power transformer or extinguish the flames rising around the transformer by arranging the water pump, water pipe and water spraying rod. The water spraying rod can directly contact the hot surface of the top and surrounding areas of the transformer by spraying water from the top, and a large amount of heat is taken away by water evaporation, thereby quickly reducing the oil temperature of the transformer, and after the water mist evaporates in the air, the oxygen content in the air will be reduced, thereby suppressing the burning of the flame and reducing the situation where the fire will continue to expand.

[0009] Preferably, a rotating wheel is rotatably connected to the middle part of the side wall of the water spray rod; a fixed rod is fixedly connected to the middle part of the side wall of the rotating wheel; the fixed rods are multiple and are regularly arranged in a circular array on the side wall of the rotating wheel; the water pipe, water spray rod, rotating wheel and fixed rod are all hollow and connected; this step, by arranging the rotating wheel and the fixed rod, can make the water flow rotate and spray outward, ensuring that the water flow can fully cover the top of the transformer and the surrounding area, including dead corners and difficult-to-reach locations, which helps to more thoroughly reduce the temperature of the oil-immersed power transformer or extinguish a fire, and the rotating nozzle can ensure that the water flow is evenly distributed on the surface of the transformer, avoiding the occurrence of local overcooling or overheating, thereby more evenly reducing the temperature of the transformer.

[0010] Preferably, a connecting rod is fixedly connected to the middle of the side wall of the fuel tank; an oil outlet hole is provided at the end of the connecting rod; the oil outlet hole is made of an elastic material; the connecting rod and the oil outlet hole are in interference fit; the oil outlet hole is arranged outside the protective shell. By setting the connecting rod and the oil outlet hole in this step, the oil sample can be regularly extracted to check the quality of the oil in the fuel tank, and harmful substances such as impurities and moisture in the transformer oil can be detected and processed in time, preventing them from damaging the oil-immersed power transformer, helping to extend the service life of the oil-immersed power transformer, and improving the stability and reliability of the power system.

[0011] Preferably, the water receiving assembly includes a water receiving plate; the water receiving plate is fixedly connected to the top of the water storage tank; the water receiving plate is inclined inward; a sieve plate is provided between the water receiving plate and the water storage tank. By setting the water receiving plate and the sieve plate in this step, rainwater can be used for cooling or fire extinguishing, reducing energy consumption and carbon emissions, helping to save energy and reduce emissions. Moreover, this setting realizes the reuse of water resources, reduces the dependence on tap water, and conforms to the concept of environmental protection and sustainable development.

[0012] Preferably, a spray head is fixedly connected to the end of the fixed rod; the spray head is arranged above the protective shell. By setting the spray head in this step, water molecules can be refined into extremely small droplets. These droplets quickly evaporate after contacting the air, thereby absorbing a large amount of heat to achieve an efficient cooling effect. Moreover, the spray head can generate uniformly distributed droplets, ensuring that the cooling effect remains consistent throughout the covered area, further avoiding local overheating or overcooling of the oil-immersed power transformer.

[0013] Preferably, the temperature measuring assembly includes a thermometer; the thermometer is fixedly connected to the side wall of the protective shell. By setting the thermometer in this step, the current oil temperature, winding temperature or ambient temperature of the oil-immersed power transformer can be intuitively displayed, enabling the installation personnel to quickly understand the temperature state of the oil-immersed power transformer.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. For the first-level energy efficiency oil-immersed power transformer of the present utility model, by setting the water storage tank, fuel tank, oil pump and oil pipeline, the transformer oil can be cooled by water cooling. This cooling method can more effectively reduce the temperature of the transformer oil, and then reduce the overall operating temperature of the oil-immersed power transformer, helping to improve the load capacity and service life of the transformer. Moreover, the cooling water can quickly absorb and take away the heat of the transformer oil, enabling the hot oil to be quickly cooled. This method can improve the heat exchange efficiency and reduce the accumulation of heat in the transformer.

[0016] 2. The first-level energy-efficient oil-immersed power transformer described in the present utility model can reduce the temperature of the oil-immersed power transformer or extinguish the flames rising around the transformer by setting up a water pump, a water delivery pipe, and a water spray rod. The water spray rod sprays water from the top and can directly contact the hot surfaces on the top and around the transformer. A large amount of heat is carried away through water evaporation, thus quickly reducing the oil temperature of the transformer. Moreover, after the water mist evaporates in the air, the oxygen content in the air will decrease, thereby suppressing the combustion of the flame and reducing the situation where the fire will continue to spread. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 is a perspective view of the present utility model;

[0019] Figure 2 is a cross-sectional view of the transformer housing in the present utility model;

[0020] Figure 3 is a schematic structural view of the cooperation between the fuel tank and the oil delivery pipe in the present utility model;

[0021] Figure 4 is a schematic structural view of the cooperation between the water delivery pipe and the rotating wheel in the present utility model.

[0022] Legend Explanation:

[0023] 1. Protective shell; 11. Hanging plate; 12. Base; 13. Radiator; 14. Bushing; 15. Water storage tank; 16. Fuel tank; 17. Oil pump; 18. Oil delivery pipe; 2. Water pump; 21. Water delivery pipe; 22. Water spray rod; 3. Rotating wheel; 31. Fixed rod; 4. Connecting rod; 41. Oil outlet hole; 5. Water receiving plate; 51. Sieve plate; 6. Atomizing nozzle; 7. Thermometer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Specific embodiments are given below.

[0026] Such as Figures 1 to 4As shown in the figure, the first-level energy-efficient oil-immersed power transformer described in the embodiment of the present utility model includes a protective shell 1; a hanging plate 11 is fixedly connected to the top side wall of the protective shell 1; a plurality of bases 12 are fixedly connected to the bottom side wall of the protective shell 1; a plurality of radiators 13 are fixedly connected to the middle side wall of the protective shell 1; a plurality of bushings 14 are provided on the top side wall of the protective shell 1; a water storage tank 15 is fixedly connected to the top side wall of the hanging plate 11; an oil tank 16 is fixedly connected to the inner bottom side wall of the protective shell 1; an oil pump 17 is fixedly connected to the inner bottom side wall of the water storage tank 15; the oil suction end of the oil pump 17 is arranged inside the oil tank 16; the oil outlet end of the oil pump 17 is fixedly connected to an oil delivery pipe 18; the oil delivery pipe 18 is fixedly connected to the water storage tank 15; the other end of the oil delivery pipe 18 is arranged inside the oil tank 16; a water receiving assembly is provided on the top side wall of the water storage tank 15; a temperature measuring assembly is installed in the middle of the side wall of the protective shell 1; during operation, the installer installs the oil-immersed power transformer inside the protective shell 1, and then fixes the plurality of bases 12 on the ground or a fixed seat, and then fixes the protective shell 1. After the protective shell 1 is stably fixed, the installer starts the oil-immersed power transformer, and the transformer starts to operate. When the temperature measuring assembly detects that the oil-immersed power transformer is overheated, the plurality of radiators 13 on the side wall of the protective shell 1 will cool the protective shell 1. At the same time, the staff injects water into the water storage tank 15 through the water receiving assembly in advance, and then starts the oil pump 17. The oil pump 17 will pump the transformer oil in the oil tank 16 into the oil delivery pipe 18. At this time, the water in the water storage tank 15 will cool the transformer oil flowing in the oil delivery pipe 18. Then the cooled transformer oil flows back into the oil tank 16 from the other end of the oil delivery pipe 18, and the oil-immersed power transformer continues to operate. This step can cool the transformer oil by means of water cooling by setting the water storage tank 15, the oil tank 16, the oil pump 17 and the oil delivery pipe 18. This cooling method can more effectively reduce the temperature of the transformer oil, thereby reducing the overall operating temperature of the oil-immersed power transformer, helping to improve the load capacity and service life of the transformer, and the cooling water can quickly absorb and take away the heat of the transformer oil, so that the hot oil can be quickly cooled. This method can improve the heat exchange efficiency and reduce the accumulation of heat inside the transformer.

[0027] As Figures 1 to 4As shown in the figure, a water pump 2 is fixedly connected to the top side wall of the hanging plate 11; the water intake end of the water pump 2 is arranged inside the water storage tank 15; the water outlet end of the water pump 2 is fixedly connected to a water delivery pipe 21; the middle part of the side wall of the water delivery pipe 21 is fixedly connected to a water spraying rod 22; there are multiple water spraying rods 22 and they are evenly distributed on the side wall of the water delivery pipe 21; the water storage tank 15, the water pump 2, the water delivery pipe 21 and the water spraying rod 22 are connected and communicated; during operation, when the temperature of the oil-immersed power transformer is too high or a fire occurs accidentally, the installer starts the water pump 2. Because the water storage tank 15, the water pump 2, the water delivery pipe 21 and the water spraying rod 22 are connected and communicated, the water pump 2 will pump the water in the water storage tank 15 into the water delivery pipe 21, and then spray it out from the multiple water spraying rods 22. By setting the water pump 2, the water delivery pipe 21 and the water spraying rod 22, the temperature of the oil-immersed power transformer can be reduced or the flames rising around the transformer can be extinguished. The water spraying rod 22 sprays water from the top and can directly contact the hot surfaces on the top and around the transformer. A large amount of heat is carried away by water evaporation, thus quickly reducing the oil temperature of the transformer. Moreover, after the water mist evaporates in the air, the oxygen content in the air will be reduced, thereby suppressing the combustion of the flame and reducing the situation where the fire will continue to spread.

[0028] As Figures 1 to 4 shown in the figure, a rotating wheel 3 is rotatably connected to the middle part of the side wall of the water spraying rod 22; a fixing rod 31 is fixedly connected to the middle part of the side wall of the rotating wheel 3; there are multiple fixing rods 31 and they are arranged in a circumferential array pattern on the side wall of the rotating wheel 3; the water delivery pipe 21, the water spraying rod 22, the rotating wheel 3 and the fixing rod 31 are all hollow and connected and communicated; during operation, when the water flow sprays out from the water spraying rod 22, because the water delivery pipe 21, the water spraying rod 22, the rotating wheel 3 and the fixing rod 31 are connected and communicated, the water flow will spray out through the multiple fixing rods 31. And because the water spraying rod 22 and the rotating wheel 3 are rotatably connected, at this time, the multiple fixing rods 31 will drive the rotating wheel 3 to rotate in the middle of the water spraying rod 22 under the impact of the water. By setting the rotating wheel 3 and the fixing rod 31, the water flow can be sprayed out rotatingly, ensuring that the water flow can fully cover the top and surrounding areas of the transformer, including dead corners and difficult-to-reach positions, which helps to more thoroughly reduce the temperature of the oil-immersed power transformer or extinguish the fire. Moreover, the rotating nozzle can ensure that the water flow is evenly distributed on the surface of the transformer, avoiding the occurrence of local overcooling or overheating phenomena, so as to more evenly reduce the temperature of the transformer.

[0029] As Figures 1 to 3As shown in the figure, a connecting rod 4 is fixedly connected to the middle of the side wall of the fuel tank 16; an oil outlet hole 41 is provided at the end of the connecting rod 4; the oil outlet hole 41 is made of elastic material; the connecting rod 4 and the oil outlet hole 41 are in interference fit; the oil outlet hole 41 is arranged outside the protective shell 1; during operation, the installer inserts the syringe into the oil outlet hole 41, and then pulls the syringe to draw out the oil in the fuel tank 16 through the connecting rod 4, which is convenient for subsequent inspection of the oil quality in the fuel tank 16. By setting the connecting rod 4 and the oil outlet hole 41 in this step, the oil sample can be regularly extracted to check the oil quality in the fuel tank 16, and harmful substances such as impurities and moisture in the transformer oil can be detected and processed in time, preventing them from damaging the oil-immersed power transformer, helping to extend the service life of the oil-immersed power transformer, and improving the stability and reliability of the power system.

[0030] As Figure 1 , Figure 2 and Figure 4 shown, the water receiving assembly includes a water receiving plate 5; the water receiving plate 5 is fixedly connected to the top of the water storage tank 15; the water receiving plate 5 is inclined inward; a sieve plate 51 is provided between the water receiving plate 5 and the water storage tank 15; during operation, when the outdoor weather is rainy or cloudy, because the water receiving plate 5 is inclined, the water receiving plate 5 will catch the rainwater in contact with the top. At this time, the rainwater will be filtered by the sieve plate 51 and then enter the inside of the water storage tank 15, serving as the reserve water for cooling the transformer oil and lowering the temperature of the oil-immersed power transformer later. By setting the water receiving plate 5 and the sieve plate 51 in this step, the rainwater can be used for cooling or fire extinguishing, reducing energy consumption and carbon emissions, helping to save energy and reduce emissions. Moreover, this setting realizes the reuse of water resources, reduces the dependence on tap water, and conforms to the concept of environmental protection and sustainable development.

[0031] As Figures 1 to 4 shown, a mist spray nozzle 6 is fixedly connected to the end of the fixed rod 31; the mist spray nozzle 6 is arranged above the protective shell 1; by setting the mist spray nozzle 6 in this step, water molecules can be refined into extremely small mist droplets. These mist droplets quickly evaporate after contacting the air, thereby absorbing a large amount of heat to achieve an efficient cooling effect. Moreover, the mist spray nozzle 6 can generate uniformly distributed mist droplets, ensuring that the cooling effect remains consistent throughout the coverage area, further avoiding the occurrence of local overheating or overcooling of the oil-immersed power transformer.

[0032] As Figure 1 and Figure 2 shown, the temperature measuring assembly includes a thermometer 7; the thermometer 7 is fixedly connected to the side wall of the protective shell 1; by setting the thermometer 7 in this step, the current oil temperature, winding temperature or ambient temperature of the oil-immersed power transformer can be intuitively displayed, enabling the installer to quickly understand the temperature state of the oil-immersed power transformer.

[0033] Working principle: The installer installs the oil-immersed power transformer inside the protective shell 1, and then fixes the protective shell 1 by fixing multiple bases 12 on the ground or fixed seats. After the protective shell 1 is stably fixed, the installer starts the oil-immersed power transformer, and the transformer starts to operate. When the temperature measuring component detects that the oil-immersed power transformer is overheated, multiple radiators 13 on the side wall of the protective shell 1 will cool the protective shell 1. At the same time, the staff injects water into the water storage tank 15 through the water receiving component in advance, and then starts the oil pump 17. The oil pump 17 will pump the transformer oil in the oil tank 16 into the oil delivery pipe 18. At this time, the water in the water storage tank 15 will cool the transformer oil flowing in the oil delivery pipe 18. Then the cooled transformer oil flows back into the oil tank 16 from the other end of the oil delivery pipe 18. Continue to operate the oil-immersed power transformer. When the temperature of the oil-immersed power transformer is too high or a fire occurs accidentally, the installer starts the water pump 2. Because the water storage tank 15, the water pump 2, the water delivery pipe 21 and the spray rod 22 are connected, the water pump 2 will pump the water in the water storage tank 15 into the water delivery pipe 21, and then spray out from multiple spray rods 22. When the water flows out from the spray rods 22, because the water delivery pipe 21, the spray rods 22, the rotating wheel 3 and the fixed rod 31 are connected, the water will be sprayed out through multiple fixed rods 31. And because the spray rod 22 and the rotating wheel 3 are rotatably connected, at this time, multiple fixed rods 31 will drive the rotating wheel 3 to rotate in the middle of the spray rod 22 under the impact of water. The installer inserts the syringe into the oil outlet hole 41, and then draws the syringe to draw out the oil in the oil tank 16 through the connecting rod 4, which is convenient for subsequent inspection of the oil quality in the oil tank 16. When the outdoor weather is rainy, because the water receiving plate 5 is inclined, the water receiving plate 5 will catch the rainwater contacting the top. At this time, the rainwater will be filtered by the sieve plate 51 and then enter the inside of the water storage tank 15, serving as the reserved water for cooling the transformer oil and cooling the oil-immersed power transformer later.

[0034] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. The first-level energy-efficient oil-immersed power transformer includes a protective shell (1); it is characterized in that: A suspension plate (11) is fixedly connected to the top side wall of the protective case (1); a plurality of bases (12) are fixedly connected to the bottom side wall of the protective case (1); a plurality of radiators (13) are fixedly connected to the middle of the side wall of the protective case (1); a plurality of sleeves (14) are provided on the top side wall of the protective case (1); a water storage tank (15) is fixedly connected to the top side wall of the suspension plate (11); an oil tank (16) is fixedly connected to the inner bottom side wall of the protective case (1); an oil pump (17) is fixedly connected to the inner bottom side wall of the water storage tank (15); the oil suction end of the oil pump (17) is arranged inside the oil tank (16); the oil outlet end of the oil pump (17) is fixedly connected to an oil delivery pipe (18); the oil delivery pipe (18) is fixedly connected to the water storage tank (15); the other end of the oil delivery pipe (18) is arranged inside the oil tank (16); a water receiving assembly is provided on the top side wall of the water storage tank (15); a temperature measuring assembly is installed in the middle of the side wall of the protective case (1).

2. The first-level energy-efficient oil-immersed power transformer according to claim 1, wherein: A water pump (2) is fixedly connected to the top side wall of the suspension plate (11); the water suction end of the water pump (2) is arranged inside the water storage tank (15); the water outlet end of the water pump (2) is fixedly connected to a water delivery pipe (21); a water spraying rod (22) is fixedly connected to the middle of the side wall of the water delivery pipe (21); there are a plurality of water spraying rods (22) which are evenly distributed on the side wall of the water delivery pipe (21); the water storage tank (15), the water pump (2), the water delivery pipe (21) and the water spraying rod (22) are communicated with each other.

3. The first-level energy-efficient oil-immersed power transformer according to claim 2, characterized in that: A rotating wheel (3) is rotatably connected to the middle of the side wall of the water spraying rod (22); a fixing rod (31) is fixedly connected to the middle of the side wall of the rotating wheel (3); there are a plurality of fixing rods (31) which are arranged in a circumferential array pattern on the side wall of the rotating wheel (3); the water delivery pipe (21), the water spraying rod (22), the rotating wheel (3) and the fixing rod (31) are all hollow and communicated with each other.

4. The first-level energy-efficient oil-immersed power transformer according to claim 1, wherein: A connecting rod (4) is fixedly connected to the middle of the side wall of the oil tank (16); an oil outlet hole (41) is provided at the end of the connecting rod (4); the oil outlet hole (41) is made of an elastic material; the connecting rod (4) and the oil outlet hole (41) are in interference fit; the oil outlet hole (41) is arranged outside the protective case (1).

5. The first-level energy-efficient oil-immersed power transformer according to claim 1, wherein: The water receiving assembly includes a water receiving plate (5); the water receiving plate (5) is fixedly connected to the top of the water storage tank (15); the water receiving plate (5) is inclined inwards; a sieve plate (51) is provided between the water receiving plate (5) and the water storage tank (15).

6. The first-level energy-efficient oil-immersed power transformer according to claim 3, characterized in that: An atomizing nozzle (6) is fixedly connected to the end of the fixing rod (31); the atomizing nozzle (6) is arranged above the protective case (1).

7. The first-level energy-efficient oil-immersed power transformer according to claim 1, characterized in that: The temperature measuring assembly includes a thermometer (7); the thermometer (7) is fixedly connected to the side wall of the protective case (1).

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