A high-efficiency heat dissipation transformer radiator assembly

Abstract

This invention relates to the field of transformer technology, and more particularly to a high-efficiency heat dissipation transformer radiator assembly, comprising a transformer body, a main radiator, and an auxiliary radiator. Several pairs of connecting flanges are fixedly connected through both sides of the outer wall of the transformer body. Several main and auxiliary radiators are provided. This invention, by setting independently switchable main and auxiliary radiators, flexibly selects either single-unit independent operation or double-unit parallel operation mode according to the actual operating temperature and load changes of the transformer. This precisely adjusts the residence time of the heat dissipation medium within the radiator. Under low-temperature or low-load conditions, single-unit operation avoids excessively long medium residence time leading to excessively low oil temperature. Under high-temperature or high-load conditions, switching to double-unit parallel operation shortens the residence time and enhances heat dissipation capacity. This design effectively solves the problem that fixed radiators cannot adapt to changes in operating conditions, preventing excessive cooling of the insulating oil or insufficient heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a transformer radiator assembly with high-efficiency heat dissipation. Background Technology

[0002] The transformer radiator assembly is a key component of an oil-immersed transformer. It is mainly used to dissipate the heat generated during transformer operation, maintain the normal operating temperature of the transformer, and ensure its safe and stable operation. This assembly typically consists of heat sinks, oil collection pipes, connecting flanges, and fixed supports. Multiple sets of heat sinks are arranged in parallel and connected by oil collection pipes. During use, the hot oil inside the transformer flows into the inner cavity of each heat sink through the upper oil collection pipe, and exchanges heat with the outside air through the surface of the heat sink. After the oil temperature drops, it flows back to the transformer oil tank through the lower oil collection pipe, forming a continuous natural circulation heat dissipation process, thereby effectively suppressing the temperature rise of the transformer.

[0003] Existing transformer radiators mostly adopt a fixed oil passage and heat sink structure. The flow path and residence time of the heat dissipation medium inside the radiator are constant. This structure cannot dynamically adjust the residence time of the medium according to the actual operating temperature and load changes of the transformer. When the transformer is under low load or low temperature environment, the medium residence time is too long, resulting in excessive heat dissipation, which leads to low oil temperature and increased viscosity, affecting the internal insulation performance and oil circulation efficiency. When the load suddenly increases or the environment is at high temperature, the medium residence time cannot be shortened accordingly, resulting in insufficient heat dissipation capacity, causing the transformer temperature to rise too high, accelerating the aging of insulation materials, and endangering the safe and stable operation of the equipment.

[0004] Therefore, a high-efficiency heat dissipation transformer radiator assembly is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art by proposing a high-efficiency heat dissipation transformer radiator assembly.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a high-efficiency heat dissipation transformer radiator assembly, comprising a transformer body, a main radiator, and an auxiliary radiator. Several pairs of connecting flanges are fixedly connected through both sides of the outer wall of the transformer body. Several main and auxiliary radiators are provided, and each main and auxiliary radiator is bolted to the outer wall of the transformer body. An upper pipe is fixedly connected to the top of the main radiator, and a lower pipe is fixedly connected to the bottom of the main radiator. A top pipe is fixedly connected to the top of the auxiliary radiator, and a bottom pipe is fixedly connected to the bottom of the auxiliary radiator. A bottom pipe is fixedly connected to the end of the transformer. An inclined pipe is fixedly connected through the side wall of the bottom pipe and the top pipe. An adjustment mechanism for adjusting the number of times the medium circulates and dissipates heat is provided inside the bottom pipe and the top pipe. An upper explosion-proof fan is fixedly connected to the bottom of the main radiator. A lower explosion-proof fan is provided at the bottom of the auxiliary radiator. A pair of mounting brackets are fixedly connected to the bottom of the transformer body. A transverse bracket is fixedly connected between the front and rear ends of the mounting brackets. An air supply mechanism for adjusting the air supply direction of the lower explosion-proof fan is also provided. Both the main radiator and the auxiliary radiator are provided with a flow guiding mechanism for guiding air to both sides.

[0007] In the above technical solution, the adjusting mechanism further includes an upper electric telescopic cylinder, which is fixedly connected to the side wall of the lower tube. The output end of the upper electric telescopic cylinder is slidably connected to the inner side of the lower tube in a sealed manner. Both ends of the inner side of the lower tube are fixedly connected to lower rings. A first sealing block and a second sealing block are respectively provided on the side of the two lower rings that are close to each other. The first sealing block is located on the side close to the transformer body. The second sealing block is sealed and inserted into the inner side of the corresponding lower ring. A connecting rod is fixedly connected between the first sealing block and the second sealing block. The output end of the upper electric telescopic cylinder is fixedly connected to the side wall of the second sealing block. An upper ring is fixedly connected to the inner side of the top tube. An upper sealing block is provided on the side wall of the upper ring. A steel wire rope is provided on the inner side of the inclined tube. By adjusting the mechanism, the single-unit independent operation or double-unit parallel operation mode can be flexibly selected according to the actual operating temperature and load changes of the transformer, thereby precisely adjusting the residence time of the heat dissipation medium in the radiator.

[0008] In the above technical solution, the air supply mechanism further includes a pair of lower electric telescopic cylinders, each fixedly connected to the top of a horizontal support. A middle frame is fixedly connected to the top of the horizontal support, and a U-shaped frame is provided at the top of the middle frame. Vertical grooves are opened through both sides of the outer wall of the U-shaped frame, and longitudinal sliding plates are slidably connected to the inner side of each vertical groove. The output end of the lower electric telescopic cylinder is fixedly connected to the bottom end of the longitudinal sliding plate. An upper spring is fixedly connected between the bottom end of the longitudinal sliding plate and the bottom end of the inner side of the U-shaped frame. The lower explosion-proof fan is rotatably connected to the U-shaped frame through a rotating shaft. A pull rod is fixedly connected to the rotating end of the lower explosion-proof fan, and a pull rope is fixedly connected to the bottom end of the pull rod. The other end of the pull rope is fixedly connected to the top of the longitudinal sliding plate.

[0009] In the above technical solution, further, sliding plates are slidably connected to both sides of the bottom end of the auxiliary radiator, and several inclined plates are fixedly connected at equal intervals to the bottom end of the sliding plates. The several inclined plates are arranged from long to short, and the shortest inclined plate is located on the side closer to the main radiator. A U-shaped block is fixedly connected to the side wall of the inclined plate, and a double-rod hydraulic telescopic cylinder is fixedly connected to the side wall of the auxiliary radiator. The output ends of the double-rod hydraulic telescopic cylinder are all fixedly connected to the side wall of the U-shaped block. The inclined plates are located on both sides of the lower explosion-proof fan, and the inclined plates are located directly below the heat dissipation fins on the auxiliary radiator. By setting up the air supply mechanism, each explosion-proof fan can independently supply air to its own group when the group is running in a single unit, ensuring uniform heat dissipation. When two groups are running in series, the lower explosion-proof fans can be adjusted to direct half of their airflow to the sides of the main radiator for auxiliary air blowing.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, by setting up independently switchable main and auxiliary radiators, allows for flexible selection of single-unit independent operation or dual-unit parallel operation modes based on the actual operating temperature and load changes of the transformer. This precisely adjusts the residence time of the heat dissipation medium within the radiator. Under low-temperature or low-load conditions, single-unit operation avoids excessively long medium residence time leading to excessively low oil temperature. Under high-temperature or high-load conditions, switching to dual-unit parallel operation shortens the residence time and enhances heat dissipation capacity. This design effectively solves the problem that fixed radiators cannot adapt to changes in operating conditions, prevents excessive cooling of insulating oil or insufficient heat dissipation, and significantly improves the heat dissipation adaptability and operational stability of the transformer under different operating conditions.

[0011] 2. This invention features an independent explosion-proof fan at the bottom of each auxiliary radiator. When a single unit is in operation, each fan independently supplies air to its unit, ensuring uniform heat dissipation. When two units are in series, the lower explosion-proof fans are adjusted to direct half of their airflow to the sides of the main radiator for auxiliary blowing. Since the medium passes through the main radiator first, the oil temperature and heat dissipation pressure of the main radiator are higher. This design can specifically enhance the heat dissipation effect of the main radiator, making the heat dissipation load of the two units more balanced. This avoids overheating of the main radiator and redundant heat dissipation of the auxiliary radiators, significantly improving the overall heat dissipation efficiency and utilization rate of the lower explosion-proof fans, and ensuring the safe and stable operation of the transformer under high load conditions. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the transformer and radiator of the present invention from the front. Figure 2 This is a three-dimensional structural diagram of the main heat sink and the auxiliary heat sink of the present invention. Figure 3 This is a bottom-view perspective view of the main and auxiliary heat sinks of the present invention. Figure 4 This is a three-dimensional structural diagram of the air supply mechanism of the present invention after adjustment, viewed from below. Figure 5 Appendix of the present invention Figure 4 A magnified view of the structure at point A in the middle; Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the side of the main heat sink of the present invention; Figure 7 This is a partial cross-sectional three-dimensional structural diagram of the side of the auxiliary heat sink of the present invention; Figure 8 Appendix of the present invention Figure 7 A magnified schematic diagram of the structure at point B in the middle; Figure 9 This is a side-separated three-dimensional structural diagram of the auxiliary heat sink and the air guiding mechanism of the present invention; Figure 10 This is a top-view three-dimensional structural diagram of the upper and lower explosion-proof fans of the present invention; Figure 11 This is a schematic diagram of the overall appearance structure of the inclined plate, the double-rod hydraulic telescopic cylinder, the lower electric telescopic cylinder, and the lower explosion-proof fan of the present invention. Figure 12 This is a partial cross-sectional perspective view of the front of the air supply frame and side air frame of the present invention; Figure 13 This is a front three-dimensional structural diagram of the explosion-proof fan and U-shaped frame of the present invention.

[0013] In the diagram: 1. Transformer body; 2. Main radiator; 3. Auxiliary radiator; 4. Connecting flange; 5. Upper pipe; 6. Lower pipe; 7. Top pipe; 8. Bottom pipe; 9. Inclined pipe; 10. Upper explosion-proof fan; 11. Mounting bracket; 12. Horizontal bracket; 13. Upper electric telescopic cylinder; 14. Lower ring; 15. First sealing block; 16. Second sealing block; 17. Connecting rod; 18. Upper ring; 19. Upper sealing block; 20. Steel wire rope; 21. Support ring; 2. Horizontal shift rod; 23. Return spring; 24. Guide roller seat; 25. Lower electric telescopic cylinder; 26. Middle frame; 27. U-shaped frame; 28. Vertical groove; 29. ​​Longitudinal shift plate; 30. Upper spring; 31. Pull rod; 32. Pull rope; 33. Limit rod; 34. Lower spring; 35. Sliding plate; 36. Inclined plate; 37. U-shaped block; 38. Double-rod hydraulic telescopic cylinder; 39. Air supply frame; 40. Air guiding mechanism; 41. Lower explosion-proof fan; 42. Side air frame. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0016] In practical use, it has been found that existing transformer radiators mostly adopt a fixed oil passage and heat sink structure. The flow path and residence time of the heat dissipation medium inside the radiator are constant. This structure cannot dynamically adjust the residence time of the medium according to the actual operating temperature and load changes of the transformer. When the transformer is under low load or low temperature environment, the medium residence time is too long, resulting in excessive heat dissipation, which leads to low oil temperature and increased viscosity, affecting the internal insulation performance and oil circulation efficiency. When the load suddenly increases or the environment is at high temperature, the medium residence time cannot be shortened accordingly, resulting in insufficient heat dissipation capacity, causing the transformer temperature to rise too high, accelerating the aging of insulation materials, and endangering the safe and stable operation of the equipment. In order to solve the above problems, the following structure was invented.

[0017] like Figures 1-13The diagram illustrates a high-efficiency heat dissipation transformer radiator assembly, comprising a transformer body 1, a main radiator 2, and an auxiliary radiator 3. Several pairs of connecting flanges 4 are fixedly connected through both sides of the outer wall of the transformer body 1. Several main radiators 2 and auxiliary radiators 3 are provided, and each is bolted to the outer wall of the transformer body 1. An upper pipe 5 is fixedly connected to the top of the main radiator 2, and a lower pipe 6 is fixedly connected to the bottom of the main radiator 2. A top pipe 7 is fixedly connected to the top of the auxiliary radiator 3, and a bottom pipe 8 is fixedly connected to the bottom of the auxiliary radiator 3. An inclined pipe 9 is fixedly connected through the side walls of the lower pipe 6 and the top pipe 7. The lower pipe 6 and the top pipe 7 are equipped with cooling devices for regulating medium circulation. The main radiator 2 has an upper explosion-proof fan 10 fixedly connected to its bottom, and the auxiliary radiator 3 has a lower explosion-proof fan 41 at its bottom. The transformer body 1 has a pair of mounting brackets 11 fixedly connected to its bottom end. The mounting brackets 11 are connected to the front and rear ends of the mounting brackets 11 with horizontal brackets 12 fixedly connected. There is also an air supply mechanism for adjusting the air supply direction of the lower explosion-proof fan 41. The main radiator 2 and the auxiliary radiator 3 are both equipped with a flow guiding mechanism 40 for guiding air to both sides. The flow guiding mechanism 40 is mainly composed of an explosion-proof motor, a rotating shaft and a flow guiding plate. It can drive the flow guiding plate to rotate on the side wall of the heat dissipation fins and guide the vertically blown air back and forth to both sides. This is a mature technology in the prior art and will not be described in detail here.

[0018] The inner sides of the upper tube 5 and the lower tube 6 are connected to the heat dissipation fins on the main radiator 2 through the tube. The inner sides of the top tube 7 and the bottom tube 8 are connected to the heat dissipation fins on the auxiliary radiator 3 through the tube. The upper tube 5 and the lower tube 6 are sealed to the corresponding connecting flange 4 by bolts. The top tube 7 and the bottom tube 8 are sealed to the corresponding connecting flange 4 by bolts.

[0019] The adjustment mechanism includes an upper electric telescopic cylinder 13, which is fixedly connected to the side wall of the lower tube 6. The output end of the upper electric telescopic cylinder 13 is sealed and slidably connected to the inside of the lower tube 6. Both ends of the inside of the lower tube 6 are fixedly connected to lower rings 14. The two lower rings 14 are respectively provided with a first sealing block 15 and a second sealing block 16 on the side close to each other. The first sealing block 15 is located on the side close to the transformer body 1. The second sealing block 16 is sealed and inserted into the inside of the corresponding lower ring 14. A connecting rod 17 is fixedly connected between the first sealing block 15 and the second sealing block 16. The output end of the upper electric telescopic cylinder 13 is fixedly connected to the side wall of the second sealing block 16. An upper ring 18 is fixedly connected to the inside of the top tube 7. An upper sealing block 19 is provided on the side wall of the upper ring 18. A steel wire rope 20 is provided on the inside of the inclined tube 9.

[0020] The upper ring 18 is located on the side close to the transformer body 1. A support ring 21 is fixedly connected to the inner side of the upper ring 18. A transverse sliding rod 22 is slidably connected to the inner side of the support ring 21. The upper sealing block 19 is fixedly connected to the side end of the transverse sliding rod 22. A return spring 23 is fixedly connected between the outer wall of the transverse sliding rod 22 and the side wall of the support ring 21. Three guide roller seats 24 are fixedly connected to the inner side of the inclined tube 9. The wire rope 20 is in contact with the outer wall of the guide roller on the three guide roller seats 24. The bottom end of the wire rope 20 is fixedly connected to the side wall of the second sealing block 16. The top end of the wire rope 20 passes through the jacking pipe 7 and is fixedly connected to the side wall of the upper sealing block 19.

[0021] The inner sides of both the lower ring 14 and the upper ring 18 are inclined. The first sealing block 15, the second sealing block 16, and the upper sealing block 19 are all conical. By making the first sealing block 15, the second sealing block 16, and the upper sealing block 19 conical, the inclined surface of the conical sealing block can press the inclined surface of the inner side of the upper ring 18 or the lower ring 14, further improving the sealing performance during compression. The first sealing block 15, the second sealing block 16, and the upper sealing block 19 are all made of fluororubber. Fluororubber has a temperature resistance of up to 200℃ or higher, making it suitable for occasions with high overload temperature rise or harsh environments.

[0022] When the transformer body 1 is running, the insulating oil in the transformer body 1 enters the upper pipe 5 and the top pipe 7 through the connecting flange 4, and then flows into the main radiator 2 and the auxiliary radiator 3 for heat dissipation. After heat dissipation, it enters the lower pipe 6 and the bottom pipe 8, and finally flows back into the transformer body 1 through the connecting flange 4. This process is repeated to achieve single-group operation of the main radiator 2 and the auxiliary radiator 3. When it is necessary to increase the heat dissipation time of the insulating oil, the upper electric telescopic cylinder 13 is activated to move the second sealing block 16, the connecting rod 17 and the first sealing block 15. This causes the second sealing block 16 to move out of the lower ring 14, releasing the blockage between the lower pipe 6 and the inclined pipe 9. Subsequently, the first sealing block 15 is inserted into another lower ring 14, thus blocking the connection between the lower pipe 6 and the connecting flange 4. At the same time, the movement of the second sealing block 16 causes the wire rope 20 to move backward, which in turn causes the guide roller seat 24 to move downward, causing the wire rope 20 to move the upper sealing block 19 forward. Simultaneously, the transverse rod 22 is pulled to slide on the support ring 21 and the return spring 23 is compressed, so that the upper sealing block 19 is inserted into the upper ring 18, blocking the connection between the main jacking pipe 7 and the connecting flange 4, thereby completing the adjustment. During equipment operation, insulating oil entering from connecting flange 4 will enter the upper pipe 5, then the main radiator 2 for heat dissipation. After initial heat dissipation, it will enter the lower pipe 6. Since the lower pipe 6 and connecting flange 4 are blocked at this time, the insulating oil that has undergone initial heat dissipation will enter the top pipe 7 through the inclined pipe 9, then be discharged into the auxiliary radiator 3 for further heat dissipation, and finally flow into the bottom pipe 8 and be discharged back into the transformer body 1 through connecting flange 4. This process is repeated to achieve the dual-group series operation of the main radiator 2 and the auxiliary radiator 3. When adjustment is required, the upper electric telescopic cylinder 13 can be controlled to repeat the above operation in reverse.

[0023] In summary, the above structural design allows for flexible selection of single-unit independent operation or double-unit parallel operation modes based on the actual operating temperature and load changes of the transformer. This enables precise adjustment of the residence time of the heat dissipation medium within the radiator. Under low-temperature or low-load conditions, single-unit operation avoids excessively long medium residence time leading to excessively low oil temperature. Under high-temperature or high-load conditions, switching to double-unit parallel operation shortens the residence time and enhances heat dissipation capacity. This design effectively solves the problem of fixed radiators being unable to adapt to changes in operating conditions, prevents excessive cooling of the insulating oil or insufficient heat dissipation, and significantly improves the transformer's heat dissipation adaptability and operational stability under different operating conditions.

[0024] Based on the above embodiments, it was found during use that the upper explosion-proof fan 10 and lower explosion-proof fan 41 below the main radiator 2 and the auxiliary radiator 3 are independently fixed. When the two groups are connected in series, air is only supplied to the heat sink of this group. It is impossible to adjust the airflow according to the temperature difference caused by the flow sequence of the medium. Since the medium has a higher temperature and concentrated heat dissipation pressure when it flows through the main radiator 2 first, and has already cooled down when it flows through the auxiliary radiator 3, the heat dissipation demand of each group is uneven. This fixed air supply method results in insufficient heat dissipation capacity of the front group and redundant efficiency of the rear fan, causing a decrease in overall heat dissipation efficiency and making it difficult to meet the temperature control requirements of the transformer when it is under high load. In order to solve the above problems, the above structure has been further improved.

[0025] The air supply mechanism includes a pair of lower electric telescopic cylinders 25, each fixedly connected to the top of the horizontal support 12. A middle frame 26 is fixedly connected to the top of the horizontal support 12. A U-shaped frame 27 is provided at the top of the middle frame 26. Vertical grooves 28 are opened through both sides of the outer wall of the U-shaped frame 27. A longitudinal sliding plate 29 is slidably connected to the inner side of the vertical grooves 28. The output end of the lower electric telescopic cylinder 25 is fixedly connected to the bottom end of the longitudinal sliding plate 29. An upper spring 30 is fixedly connected between the bottom end of the longitudinal sliding plate 29 and the inner bottom end of the U-shaped frame 27. A lower explosion-proof fan 41 is rotatably connected to the U-shaped frame 27 through a rotating shaft. A pull rod 31 is fixedly connected to the rotating end of the lower explosion-proof fan 41. A pull rope 32 is fixedly connected to the bottom end of the pull rod 31. The other end of the pull rope 32 is fixedly connected to the top of the longitudinal sliding plate 29.

[0026] Both sides of the outer wall of the U-shaped frame 27 are fixedly connected with limiting rods 33 for limiting the rotation angle of the pull rod 31, and a lower spring 34 is fixedly connected between the bottom end of the pull rod 31 and the top end of the limiting rod 33.

[0027] The auxiliary radiator 3 has sliding plates 35 horizontally slidably connected to both sides of its bottom end. Several inclined plates 36 are fixedly connected at equal intervals to the bottom end of the sliding plates 35. The inclined plates 36 are arranged from longest to shortest, with the shortest inclined plate 36 located on the side closest to the main radiator 2. A U-shaped block 37 is fixedly connected to the side wall of the inclined plate 36. A double-rod hydraulic telescopic cylinder 38 is fixedly connected to the side wall of the auxiliary radiator 3. The output ends of the double-rod hydraulic telescopic cylinder 38 are fixedly connected to the side wall of the U-shaped block 37. The inclined plates 36 are located on both sides of the lower explosion-proof fan 41, directly below the heat dissipation fins on the auxiliary radiator 3. Through the arrangement of the inclined plates 36 and the double-rod hydraulic telescopic cylinder 38, the inclined plates 36 can be pushed towards the center when the lower explosion-proof fan 41 moves downward, thus guiding the airflow into the auxiliary radiator 3 after the lower explosion-proof fan 41 is tilted.

[0028] An air supply frame 39 is provided between the auxiliary radiator 3 and the main radiator 2. The side walls of the air supply frame 39 are fixedly connected to the side air frames 42 on both sides of the upper explosion-proof fan 10. The air supply frame 39 and the inner side of the side air frames 42 are connected through each other. The top of the side air frames 42 is hollowed out, and the bottom of the middle part of the air supply frame 39 is hollowed out. The air supply frame 39 is fixedly connected to the side wall of the auxiliary radiator 3.

[0029] During the single-unit operation of the main radiator 2 and the auxiliary radiator 3, the upper explosion-proof fan 10 and the lower explosion-proof fan 41 are started to blow external air into the main radiator 2 and the auxiliary radiator 3, and through the cooperation of the flow guiding mechanism 40, uniform heat dissipation is achieved inside the main radiator 2 and the auxiliary radiator 3. When adjusted to dual-group series operation, the lower electric telescopic cylinder 25 is activated, driving the longitudinal plate 29 downward. At this time, under the elastic force of the upper spring 30, the U-shaped frame 27 and the lower explosion-proof fan 41 move downward together, moving the lower explosion-proof fan 41 away from the auxiliary radiator 3. Subsequently, the U-shaped frame 27 moves above the middle frame 26, thus restricting its downward movement. However, the lower electric telescopic cylinder 25 continues to drive the longitudinal plate 29 downward, gradually compressing the upper spring 30. Simultaneously, it pulls the rope 32 downward. Pulling the lever 31 causes it to flip downwards around the hinge, and through the rotating shaft, it drives the lower explosion-proof fan 41 to flip downwards, while compressing the lower spring 34, thereby adjusting the blowing angle of the lower explosion-proof fan 41. Then, the lever 31 moves to the top of the limit rod 33 and is restricted from flipping downwards. At this time, the lower electric telescopic cylinder 25 is stopped, and then the double-rod hydraulic telescopic cylinder 38 is started to drive the U-shaped block 37 to move towards the middle, thereby pulling multiple inclined plates 36 and sliding plates 35 to slide under the auxiliary radiator 3, so that the two sets of inclined plates 36 are combined together. Then, during the operation of the equipment, the lower explosion-proof fan 41 is started. Half of the air blown out by the lower explosion-proof fan 41 is sent into the auxiliary radiator 3 for heat exchange under the guidance of the inclined plate 36, and the other half enters through the hollow at the bottom of the air supply frame 39, and then exits through the notch at the top of the side air frame 42, and enters the two sides of the main radiator 2. Together with the middle air supply cooling of the explosion-proof fan 10, the main radiator 2 is cooled efficiently. Finally, when a single-group operation adjustment and reset is required, first control the double-rod hydraulic telescopic cylinder 38 to start and drive the inclined plate 36 to move to both sides to reset, then control the lower electric telescopic cylinder 25 to start and drive the longitudinal plate 29 to move upward and repeat the above operation to reset, and finally place the top of the lower explosion-proof fan 41 against the bottom of the main radiator 2 to complete the reset (placing the top of the lower explosion-proof fan 41 against the bottom of the main radiator 2 can ensure that the lower explosion-proof fan 41 will not rotate arbitrarily and ensure the stability of the position of the lower explosion-proof fan 41 when it is working).

[0030] In summary, through the above structural design, an independent explosion-proof fan 41 is configured at the bottom of each auxiliary radiator 3. When a single group is in operation, each explosion-proof fan 41 independently supplies air to its group, ensuring uniform heat dissipation. When two groups are in series, the lower explosion-proof fan 41 is adjusted to direct half of its airflow to the sides of the main radiator 2 for auxiliary blowing. Since the medium passes through the main radiator 2 first, the oil temperature of the main radiator 2 is higher and the heat dissipation pressure is greater. This design can specifically enhance the heat dissipation effect of the main radiator 2, making the heat dissipation load of the two groups tend to be balanced, avoiding overheating of the main radiator 2 and redundant heat dissipation of the auxiliary radiator 3, significantly improving the overall heat dissipation efficiency and utilization rate of the lower explosion-proof fan 41, and ensuring the safe and stable operation of the transformer under high load conditions.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention.

[0032] Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. A high-efficiency heat dissipation transformer radiator assembly, characterized in that, The transformer includes a transformer body (1), a main radiator (2), and an auxiliary radiator (3). Several pairs of connecting flanges (4) are fixedly connected to both sides of the outer wall of the transformer body (1). Several main radiators (2) and auxiliary radiators (3) are provided, and each main radiator (2) and auxiliary radiator (3) is bolted to the outer wall of the transformer body (1). An upper pipe (5) is fixedly connected to the top of the main radiator (2), and a lower pipe (6) is fixedly connected to the bottom of the main radiator (2). A top pipe (7) is fixedly connected to the top of the auxiliary radiator (3), and a bottom pipe (8) is fixedly connected to the bottom of the auxiliary radiator (3). The lower pipe (6) and the top pipe (7) are connected to the top of the auxiliary radiator (3). 7) An inclined pipe (9) is fixedly connected through the side walls. The lower pipe (6) and the top pipe (7) are provided with an adjustment mechanism for adjusting the number of times the medium circulates and dissipates heat. The bottom of the main radiator (2) is fixedly connected with an upper explosion-proof fan (10). The bottom of the auxiliary radiator (3) is provided with a lower explosion-proof fan (41). The bottom of the transformer body (1) is fixedly connected with a pair of mounting brackets (11). The front and rear ends of the mounting brackets (11) are fixedly connected with horizontal brackets (12). An air supply mechanism is also provided for adjusting the air supply direction of the lower explosion-proof fan (41). The main radiator (2) and the auxiliary radiator (3) are both provided with a flow guiding mechanism (40) for guiding air to both sides. The air supply mechanism includes a lower electric telescopic cylinder (25), and a pair of lower electric telescopic cylinders (25) are provided. The lower electric telescopic cylinders (25) are fixedly connected to the top of the horizontal support (12). The top of the horizontal support (12) is fixedly connected to a middle frame (26). The top of the middle frame (26) is provided with a U-shaped frame (27). Vertical grooves (28) are opened through both sides of the outer wall of the U-shaped frame (27). The inner side of the vertical grooves (28) is longitudinally slidably connected to a longitudinal sliding plate (29). The lower electric telescopic cylinder... The output end of the cylinder (25) is fixedly connected to the bottom end of the longitudinal plate (29). The bottom end of the longitudinal plate (29) and the bottom end of the U-shaped frame (27) are both fixedly connected to the upper spring (30). The lower explosion-proof fan (41) is rotatably connected to the U-shaped frame (27) through a rotating shaft. The rotating end of the lower explosion-proof fan (41) is fixedly connected to the pull rod (31). The bottom end of the pull rod (31) is fixedly connected to the pull rope (32). The other end of the pull rope (32) is fixedly connected to the top end of the longitudinal plate (29). The auxiliary radiator (3) has sliding plates (35) slidably connected to both sides of its bottom end. Several inclined plates (36) are fixedly connected at equal intervals at the bottom end of the sliding plates (35). The inclined plates (36) are arranged from long to short. The shortest inclined plate (36) is located on the side closer to the main radiator (2). A U-shaped block (37) is fixedly connected to the side wall of the inclined plate (36). A double-rod hydraulic telescopic cylinder (38) is fixedly connected to the side wall of the auxiliary radiator (3). The output ends of the double-rod hydraulic telescopic cylinder (38) are fixedly connected to the side wall of the U-shaped block (37). The inclined plates (36) are located on both sides of the lower explosion-proof fan (41). The inclined plates (36) are located directly below the heat dissipation fins on the auxiliary radiator (3).

2. The high-efficiency heat dissipation transformer radiator assembly according to claim 1, characterized in that, The inner sides of the upper tube (5) and the lower tube (6) are connected through the heat dissipation fins on the main radiator (2), and the inner sides of the top tube (7) and the bottom tube (8) are connected through the heat dissipation fins on the auxiliary radiator (3). The upper tube (5) and the lower tube (6) are sealed to the corresponding connecting flange (4) by bolts. The top tube (7) and the bottom tube (8) are sealed to the corresponding connecting flange (4) by bolts.

3. The high-efficiency heat dissipation transformer radiator assembly according to claim 1, characterized in that, The adjustment mechanism includes an upper electric telescopic cylinder (13), which is fixedly connected to the side wall of the lower tube (6). The output end of the upper electric telescopic cylinder (13) is sealed and slidably connected to the inside of the lower tube (6). Both ends of the inside of the lower tube (6) are fixedly connected to lower rings (14). The two lower rings (14) are respectively provided with a first sealing block (15) and a second sealing block (16) on the side close to each other. The first sealing block (15) is located on the side close to the transformer body (1). The second sealing block (16) is sealed and inserted into the inside of the corresponding lower ring (14). A connecting rod (17) is fixedly connected between the first sealing block (15) and the second sealing block (16). The output end of the upper electric telescopic cylinder (13) is fixedly connected to the side wall of the second sealing block (16). An upper ring (18) is fixedly connected to the inside of the top tube (7). An upper sealing block (19) is provided on the side wall of the upper ring (18). A steel wire rope (20) is provided on the inside of the inclined tube (9).

4. The high-efficiency heat dissipation transformer radiator assembly according to claim 3, characterized in that, The upper ring (18) is located on the side close to the transformer body (1). A support ring (21) is fixedly connected to the inner side of the upper ring (18). A transverse sliding rod (22) is slidably connected to the inner side of the support ring (21). The upper sealing block (19) is fixedly connected to the side end of the transverse sliding rod (22). A reset spring (23) is fixedly connected between the outer wall of the transverse sliding rod (22) and the side wall of the support ring (21). Three guide roller seats (24) are fixedly connected to the inner side of the inclined tube (9). The wire rope (20) is in contact with the outer wall of the guide roller on the three guide roller seats (24). The bottom end of the wire rope (20) is fixedly connected to the side wall of the second sealing block (16). The top end of the wire rope (20) passes through the top tube (7) and is fixedly connected to the side wall of the upper sealing block (19).

5. A high-efficiency heat dissipation transformer radiator assembly according to claim 3, characterized in that, The inner sides of the lower ring (14) and the upper ring (18) are both inclined. The first sealing block (15), the second sealing block (16) and the upper sealing block (19) are all set in a conical shape. The first sealing block (15), the second sealing block (16) and the upper sealing block (19) are all made of fluororubber.

6. A high-efficiency heat dissipation transformer radiator assembly according to claim 1, characterized in that, Both sides of the outer wall of the U-shaped frame (27) are fixedly connected with limiting rods (33) for limiting the rotation angle of the pull rod (31), and a lower spring (34) is fixedly connected between the bottom end of the pull rod (31) and the top end of the limiting rod (33).

7. A high-efficiency heat dissipation transformer radiator assembly according to claim 1, characterized in that, An air supply frame (39) is provided between the auxiliary radiator (3) and the main radiator (2). The side walls of the air supply frame (39) are fixedly connected to the side air frames (42) on both sides of the upper explosion-proof fan (10). The air supply frame (39) and the side air frames (42) are connected through the inner side. The top of the side air frame (42) is hollowed out, and the bottom of the middle part of the air supply frame (39) is hollowed out. The air supply frame (39) is fixedly connected to the side wall of the auxiliary radiator (3).

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