New energy oil immersed transformer special for wind power generation
By introducing partitions, heat dissipation plates and filtration systems into the oil-immersed transformer, independent heat dissipation and sludge filtration are achieved at high temperatures, solving the overheating problem caused by the oil-immersed transformer due to the difficulty of heat dissipation, and extending the service life.
Patent Information
- Application Number
- CN202422055297.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-23
AI Technical Summary
Existing oil-immersed transformers cannot effectively dissipate heat when they exceed the designed load capacity, resulting in overheating and affecting service life.
A new energy oil-immersed transformer for wind power generation is designed, including partitions, heat dissipation plates, sensors, movable plates and sliders. It can independently extract insulating oil for heat dissipation when the temperature is too high, and filter and clean when the sludge appears.
It effectively solves the overheating problem caused by oil-immersed transformers due to difficulty in heat dissipating, extends the service life, and ensures the normal operation of the transformer.
Smart Images
Figure CN223092647U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of new energy oil-immersed transformers, in particular to a new energy oil-immersed transformer dedicated to wind power generation. Background Art
[0002] New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy. It refers to energy that has just begun to be developed or is being actively researched and is yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy and nuclear fusion energy. Among them, wind energy is the use of wind power generation, which refers to the conversion of wind kinetic energy into electrical energy. The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through a speed increaser to drive the generator to generate electricity. Wind energy is a clean, pollution-free, renewable energy source that has been used by people very early, mainly through windmills to pump water, grind flour, etc.
[0003] Oil-immersed transformers use oil as the main insulation means of the transformer and rely on oil as a cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation. There are two cooling methods for oil-immersed transformers. The oil-immersed self-cooling method relies on the natural convection of the oil to take away the heat. The oil-immersed air-cooling method is based on the oil-immersed self-cooling method, and a fan is added to blow air to the oil tank and oil pipe to enhance the heat dissipation effect. Forced oil circulation uses an oil pump to pump the hot oil in the transformer to the outside of the transformer for cooling before sending it back to the transformer;
[0004] In the existing technical solution, fins are arranged on the outside of the oil-immersed transformer to dissipate heat from the insulating oil inside the oil-immersed transformer. However, when the oil-immersed transformer continues to operate under conditions exceeding its designed load capacity, excessive heat will be generated, exceeding the cooling capacity of the heat dissipation system, thereby causing overheating problems. Therefore, the fins of the oil-immersed transformer itself cannot dissipate heat in time, thereby causing damage to the oil-immersed transformer.
[0005] Therefore, a new energy oil-immersed transformer dedicated to wind power generation is proposed. Utility Model Content
[0006] The purpose of the utility model is to provide a new energy oil-immersed transformer dedicated to wind power generation. When the temperature inside the oil-immersed transformer is too high, the component can autonomously extract and replace the insulating oil in the main oil tank for heat dissipation treatment to avoid being limited by the internal space of the oil-immersed transformer and making it difficult to discharge heat, resulting in overheating of the oil-immersed transformer, thereby causing damage to the oil-immersed transformer, thereby increasing the service life of the oil-immersed transformer, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above object, the present utility model provides the following technical solutions: A new energy oil-immersed transformer dedicated for wind power generation, including a main oil tank, with fins fixedly connected to both the left and right sides and the rear end of the main oil tank. The upper end of the main oil tank is movably connected with an end cover. The front end of the main oil tank is fixedly connected with an auxiliary oil tank. An oil inlet and a movable slot are respectively opened on the right side of the front end of the main oil tank, and the oil inlet is located above the movable slot. An oil outlet is opened on the left side of the front end of the main oil tank. A partition is fixedly connected inside the auxiliary oil tank, and the auxiliary oil tank is separated into a heat dissipation part and a filtration part by the partition. The heat dissipation part is located on the right side of the filtration part. A sensor is fixedly connected inside the partition. A plurality of heat dissipation plates are fixedly connected inside the heat dissipation part. An inlet slot is opened at the upper left end of the partition.
[0008] Preferably, a plurality of sleeves are provided at the upper end of the end cover. An oil conservator is fixedly connected to the left side of the upper end of the end cover. A winding is fixedly connected to the lower end of the end cover.
[0009] Preferably, a movable plate is movably connected to the right side inside the heat dissipation part. A slider is fixedly connected to the rear end of the movable plate. A spring is fixedly connected to the lower end of the movable plate.
[0010] Preferably, a vacuum pump is fixedly connected to the right side inside the filtration part. A connecting pipe is fixedly connected to the lower end of the vacuum pump. A cover plate is movably connected to the upper end of the filtration part.
[0011] Preferably, a guide slot and two installation slots are respectively opened inside the filtration part. Filter plates are movably connected inside both of the two installation slots. A filter screen is fixedly connected to the upper end inside the filter plates.
[0012] Preferably, the heat dissipation part is communicated with the inside of the main oil tank through the oil inlet and the movable slot. The guide slot is communicated with the inside of the main oil tank through the oil outlet.
[0013] Preferably, the heat dissipation plates are distributed in a separated and alternating manner, and the heat dissipation plates penetrate and connect to the outside of the auxiliary oil tank. The elastic force of the spring is greater than the sum of the gravity of the movable plate and the slider.
[0014] Preferably, the inside of the guide slot is inclined, and the two installation slots vertically penetrate the guide slot downward.
[0015] Compared with the prior art, the beneficial effects of the present utility model are:
[0016] 1. The new energy oil-immersed transformer dedicated to wind power generation, by installing components such as partition plates, heat dissipation plates, sensors, movable plates and sliders, can, when the temperature inside the oil-immersed transformer is too high, the components can independently extract and replace the insulating oil in the main oil tank for heat dissipation treatment, so as to solve the problem that due to the limitation of the internal space of the oil-immersed transformer, it is difficult to discharge heat, resulting in overheating of the oil-immersed transformer, thereby damaging the oil-immersed transformer, and further increasing the service life of the oil-immersed transformer;
[0017] 2. The new energy oil-immersed transformer dedicated to wind power generation, by opening guide grooves, installation grooves and installing filter plates and filter meshes and other components, can, when sludge appears inside the oil-immersed transformer, the components can independently filter and clean the insulating oil, thereby ensuring the normal operation of the oil-immersed transformer and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 It is the overall structure view of the present invention;
[0020] Figure 2 It is the schematic diagram of the semi-sectional structure of the auxiliary oil tank of the present invention;
[0021] Figure 3 It is the schematic diagram of the semi-sectional structure of the heat dissipation area of the present invention;
[0022] Figure 4 It is the schematic diagram of the semi-sectional structure of the filtering area of the present invention.
[0023] DESCRIPTION OF THE REFERENCE NUMERALS:
[0024] 1. Main oil tank; 11. Fin; 12. Oil inlet; 13. Movable slot; 14. Oil outlet; 2. End cover; 21. Bushing; 22. Conservator; 23. Winding; 3. Auxiliary oil tank; 4. Heat dissipation part; 41. Partition plate; 411. Heat dissipation plate; 412. Sensor; 42. Inlet slot; 43. Movable plate; 431. Slider; 44. Spring; 5. Filtering part; 51. Guide groove; 511. Installation groove; 52. Vacuum pump; 53. Connecting pipe; 54. Cover plate; 6. Filter plate; 61. Filter mesh. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0026] Please refer to Figures 1 to 4 , the present invention provides a technical solution:
[0027] A new energy oil-immersed transformer dedicated for wind power generation, comprising a main oil tank 1. The left, right and rear sides of the main oil tank 1 are fixedly connected with fins 11. The upper end of the main oil tank 1 is movably connected with an end cover 2. The front end of the main oil tank 1 is fixedly connected with an auxiliary oil tank 3. The front end of the main oil tank 1 is respectively provided with an oil inlet 12 and a movable slot 13 on the right side. The oil inlet 12 is located above the movable slot 13. An oil outlet 14 is provided on the left side of the front end of the main oil tank 1. A partition 41 is fixedly connected inside the auxiliary oil tank 3. The auxiliary oil tank 3 is separated into a heat dissipation part 4 and a filtering part 5 by the partition 41. The heat dissipation part 4 is located on the right side of the filtering part 5. A sensor 412 is fixedly connected inside the partition 41. A plurality of heat dissipation plates 411 are fixedly connected inside the heat dissipation part 4. An inlet slot 42 is provided at the upper left side of the partition 41. A plurality of sleeves 21 are provided at the upper end of the end cover 2. An oil conservator 22 is fixedly connected to the upper left side of the upper end of the end cover 2. A winding 23 is fixedly connected to the lower end of the end cover 2. A movable plate 43 is movably connected to the right side inside the heat dissipation part 4. A slider 431 is fixedly connected to the rear end of the movable plate 43. A spring 44 is fixedly connected to the lower end of the movable plate 43. The heat dissipation part 4 is communicated with the inside of the main oil tank 1 through the oil inlet 12 and the movable slot 13. The guide slot 51 is communicated with the inside of the main oil tank 1 through the oil outlet 14. The heat dissipation plates 411 are distributed in a separated and alternating manner. The heat dissipation plates 411 penetrate through and are connected to the outside of the auxiliary oil tank 3. The elastic force of the spring 44 is greater than the sum of the gravity of the movable plate 43 and the slider 431.
[0028] By adopting the above technical solution, when installing the oil-immersed transformer, the inside of the main oil tank 1 and the inside of the auxiliary oil tank 3 are both filled with insulating oil. Then, by closing the end cover 2 and the cover plate 54 on the filtering part 5, the inside of the main oil tank 1 and the inside of the auxiliary oil tank 3 are in a closed state. When the oil-immersed transformer operates, a large amount of heat is generated. However, there is air inside the main oil tank 1, which will affect the fluidity of the insulating oil, thereby reducing the heat conduction ability of the insulating oil. Therefore, the heat inside the main oil tank 1 may not be effectively transferred out, resulting in a local temperature increase. At this time, the insulating oil inside the main oil tank 1 is heated and its volume increases. The rising insulating oil flows from the oil inlet 12 to the upper side of the movable plate 43. When the temperature continues to rise, the insulating oil continuously flows to the upper end of the movable plate 43. However, the elastic force of the spring 44 at the lower end of the movable plate 43 is less than the sum of the gravity of the movable plate 43 and the insulating oil at the upper end. The movable plate 43 and the slider 431 move downward. At this time, the slider 431 moves downward, exposing the movable groove 13. The insulating oil inside the main oil tank 1 then enters the heat dissipation part 4 from the movable groove 13. When the sensor 412 inside the partition plate 41 detects the insulating oil, the vacuum pump 52 on the left side inside the filtering part 5 starts. At this time, the inside of the heat dissipation part 4 is in a closed state. The vacuum pump 52 extracts the gas inside the heat dissipation part 4 and the insulating oil entering the heat dissipation part 4, causing the insulating oil inside the heat dissipation part 4 to move upward along the heat dissipation plate 411. When the insulating oil passes through the heat dissipation plate 411, the temperature of the heat dissipation plate 411 is lower than the temperature of the insulating oil, causing the heat dissipation plate 411 to absorb the heat of the insulating oil. When the temperature of the heat dissipation plate 411 outside the auxiliary oil tank 3 is lower than the temperature of the heat dissipation plate 411 inside the heat dissipation part 4, the heat inside the heat dissipation plate 411 inside the heat dissipation part 4 diffuses towards the heat dissipation plate 411 outside the auxiliary oil tank 3, so as to further dissipate the heat of the insulating oil inside the main oil tank 1, thereby avoiding overheating of the oil-immersed transformer caused by difficult heat discharge due to space limitations, which may damage the oil-immersed transformer and further increase the service life of the oil-immersed transformer.
[0029] Specifically, as Figure 4 shown, a vacuum pump 52 is fixedly connected to the right side inside the filtering part 5. The lower end of the vacuum pump 52 is fixedly connected to a connecting pipe 53. The upper end of the filtering part 5 is movably connected to a cover plate 54. Guide grooves 51 and two mounting grooves 511 are respectively formed inside the filtering part 5. Filter plates 6 are movably connected to the inside of the two mounting grooves 511. A filter screen 61 is fixedly connected to the upper end inside the filter plate 6. The inside of the guide groove 51 is inclined, and the two mounting grooves 511 vertically penetrate the guide groove 51 downward.
[0030] By adopting the above technical solution, the insulating oil inside the heat dissipation part 4 is pumped into the connecting pipe 53 by the vacuum pump 52, and then output into the guide groove 51. The insulating oil entering the guide groove 51 stays when passing through the filter plate 6. When the vacuum pump 52 continuously outputs insulating oil into the guide groove 51 through the connecting pipe 53, the insulating oil moves upward towards the upper end of the filter plate 6. When passing through the filter screen 61, the insulating oil is filtered again. By repeating the above process, the insulating oil is filtered twice. The vacuum pump 52 continuously extracts the insulating oil, making the insulating oil entering the guide groove 51 increase continuously. Thus, the insulating oil returns to the main oil tank 1 through the guide groove 51 and the oil outlet 14, so as to achieve the purpose of filtering and cleaning the insulating oil inside the main oil tank 1, avoiding the sludge generated by oxides and moisture in the insulating oil from affecting the fluidity and cooling effect of the insulating oil, and ensuring the normal operation of the oil-immersed transformer and extending its service life.
[0031] Working principle: When the temperature inside the main oil tank 1 is too high, the insulating oil heats up and its volume increases, and then it rises. The rising insulating oil flows from the oil inlet 12 to the upper part of the movable plate 43. When the temperature continues to rise, the insulating oil continuously flows to the upper end of the movable plate 43. However, the elastic force of the spring 44 at the lower end of the movable plate 43 is less than the sum of the gravity of the movable plate 43 and the insulating oil at the upper end. The movable plate 43 and the slider 431 move downward. At this time, the slider 431 moves downward, making the movable groove 13 exposed. The insulating oil inside the main oil tank 1 then enters the heat dissipation part 4 through the movable groove 13. When the sensor 412 inside the partition plate 41 detects the insulating oil, the vacuum pump 52 on the left side inside the filtering part 5 starts. At this time, the inside of the heat dissipation part 4 is in a closed state. The vacuum pump 52 extracts the gas inside the heat dissipation part 4 and the insulating oil entering the heat dissipation part 4, making the insulating oil inside the heat dissipation part 4 move upward along the heat dissipation plate 411. When the insulating oil passes through the heat dissipation plate 411, the temperature of the heat dissipation plate 411 is lower than that of the insulating oil, so that the heat dissipation plate 411 absorbs the heat of the insulating oil. When the temperature of the heat dissipation plate 411 outside the auxiliary oil tank 3 is lower than that of the heat dissipation plate 411 inside the heat dissipation part 4, the heat inside the heat dissipation plate 411 diffuses towards the heat dissipation plate 411 outside the auxiliary oil tank 3, so as to achieve the purpose of further dissipating the heat of the insulating oil inside the main oil tank 1, thus avoiding the oil-immersed transformer from overheating and being damaged due to difficult heat dissipation caused by space limitations, and further increasing the service life of the oil-immersed transformer.
[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A new energy oil-immersed transformer dedicated for wind power generation, comprising a main oil tank (1), characterized in that: On both the left and right sides and the rear end of the main fuel tank (1), there are fixedly connected fin pieces (11). An end cover (2) is movably connected to the upper end of the main fuel tank (1). A secondary fuel tank (3) is fixedly connected to the front end of the main fuel tank (1). An oil inlet (12) and a movable groove (13) are respectively provided on the right side near the front end of the main fuel tank (1). The oil inlet (12) is located above the movable groove (13). An oil outlet (14) is provided on the left side near the front end of the main fuel tank (1). A partition plate (41) is fixedly connected inside the secondary fuel tank (3). The secondary fuel tank (3) is separated by the partition plate (41) into a heat dissipation part (4) and a filtration part (5). The heat dissipation part (4) is located on the right side of the filtration part (5). A sensor (412) is fixedly connected inside the partition plate (41). A plurality of heat dissipation plates (411) are fixedly connected inside the heat dissipation part (4). An inlet groove (42) is provided on the upper left side of the left side of the partition plate (41).
2. The special new energy oil-immersed transformer for wind power generation according to claim 1, wherein: A plurality of sleeves (21) are provided on the upper end of the end cover (2). An oil pillow (22) is fixedly connected to the upper left side of the end cover (2). A winding (23) is fixedly connected to the lower end of the end cover (2).
3. The new energy oil-immersed transformer dedicated to wind power generation according to claim 1, wherein: A movable plate (43) is movably connected to the right side inside the heat dissipation part (4). A slider (431) is fixedly connected to the rear end of the movable plate (43). A spring (44) is fixedly connected to the lower end of the movable plate (43).
4. A new energy oil-immersed transformer dedicated to wind power generation according to claim 1, characterized in that: A vacuum pump (52) is fixedly connected to the right side inside the filtration part (5). A connecting pipe (53) is fixedly connected to the lower end of the vacuum pump (52). A cover plate (54) is movably connected to the upper end of the filtration part (5).
5. A new energy oil-immersed transformer dedicated for wind power generation according to claim 4, characterized in that: A guide groove (51) and two installation grooves (511) are respectively provided inside the filtration part (5). Filter plates (6) are movably connected inside both of the two installation grooves (511). A filter screen (61) is fixedly connected to the upper end inside the filter plate (6).
6. The new energy oil-immersed transformer dedicated to wind power generation according to claim 5, characterized in that: The heat dissipation part (4) is in through connection with the inside of the main fuel tank (1) through the oil inlet (12) and the movable groove (13). The guide groove (51) is in through connection with the inside of the main fuel tank (1) through the oil outlet (14).
7. A new energy oil-immersed transformer dedicated to wind power generation according to claim 3, characterized in that: The heat dissipation plates (411) are distributed in a separated and alternating manner. The heat dissipation plates (411) penetrate and connect to the outside of the secondary fuel tank (3). The elastic force of the spring (44) is greater than the sum of the gravity of the movable plate (43) and the slider (431).
8. A new energy oil-immersed transformer dedicated to wind power generation according to claim 5, characterized in that: The inside of the guide groove (51) is inclined. The two installation grooves (511) vertically penetrate the guide groove (51) downwards.