Self-adjusting water-cooling integrated oil-immersed transformer

Abstract

The invention relates to the technical field of transformers, in particular to a self-adjusting water-cooling integrated oil-immersed transformer which comprises a transformer body and heat dissipation devices, the heat dissipation devices are arranged on the two sides of the transformer body to dissipate heat of cooling fins, and each heat dissipation device comprises a heat dissipation shell and a fan arranged on the side wall of the heat dissipation shell; an oil circulating pipeline and a water path cooling pipeline are arranged in the heat dissipation shell, and a spraying mechanism spraying towards the cooling fins is arranged on the side, facing the cooling fins, of the heat dissipation shell. The three modes of air cooling, oil circulation mixing heat dissipation and spraying water cooling can be switched, the air flow direction is accurately controlled in combination with the servo motor, and flexible adjustment of the heat dissipation strategy is achieved. The spraying mechanism is started at extremely high temperature and cooperates with the fan to work, so that the heat dissipation efficiency is remarkably improved, the temperature of the transformer is always in a safe range, overheating faults are effectively avoided, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a self-regulating water-cooled integrated oil-immersed transformer. Background Art

[0002] Transformers are essential components of power supply systems, adjusting voltage to meet varying power demands. Current oil-immersed transformers rely primarily on corrugated fins for heat dissipation, typically through natural cooling or air cooling. However, this approach often requires a large heat dissipation area or slows down the heat dissipation rate. While this method meets basic heat dissipation requirements, there is still significant room for improvement in heat dissipation performance in high-temperature environments. Particularly in summer or under heavy loads, transformer temperatures often exceed safe limits, impacting stable operation and service life.

[0003] For example, a water-cooled oil-immersed transformer with publication number CN116052989A includes an oil tank, a heat exchange tank, a liquid storage tank, a first cooling assembly, and a second cooling assembly. The lower liquid inlet pipe of the first cooling assembly and the upper liquid discharge pipe of the second cooling assembly are both connected to the liquid storage tank; the lower liquid inlet pipe of the second cooling assembly and the upper liquid discharge pipe of the first cooling assembly are both connected to the heat exchange tank; and multiple cooling pipes are closely attached to multiple heat sinks. By attaching the multiple cooling pipes to the multiple heat sinks, the cooling liquid flowing in the cooling pipes exchanges heat with the heat sinks, thereby achieving rapid heat dissipation from the heat sinks.

[0004] The above-mentioned existing technology sets up cooling pipes between the heat sinks. However, the current heat sink spacing itself is small, and natural wind cannot penetrate the middle area. Heat is easily retained between the heat sinks, resulting in a limited overall heat dissipation rate. At the same time, the contact area between the cooling pipes and the heat sinks is limited, and the heat exchange efficiency is not high, making it difficult to effectively meet the heat dissipation needs in a continuous high-temperature environment.

[0005] In addition, the above-mentioned existing technologies rely on water cooling for heat dissipation. However, in actual use, the temperature of the transformer is affected by the environment. For example, the temperature difference between the two extreme seasons of winter and summer requires different degrees of cooling. Obviously, excessive cooling is not required in winter, and the use of water cooling for heat dissipation at this time may result in energy waste. In summer or during peak load periods, the cooling capacity of the water cooling system may not be sufficient to cope with the high temperature challenge, causing the transformer to overheat.

[0006] Therefore, the above-mentioned existing technologies lack a flexible heat dissipation mode and cannot automatically adjust the cooling intensity according to changes in ambient temperature and load, resulting in insufficient energy utilization or poor heat dissipation effect, affecting the long-term stable operation of the transformer.

[0007] Based on this, the above-mentioned existing technology still has room for improvement to solve the above-mentioned technical problems. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a self-regulating water-cooled integrated oil-immersed transformer.

[0009] A self-regulating water-cooled integrated oil-immersed transformer, comprising:

[0010] The transformer body is provided with a plurality of heat sinks on both sides for dissipating the temperature of the transformer body, wherein the heat sinks are constructed as a hollow shell structure filled with oil;

[0011] Several heat dissipation devices are arranged on both sides of the transformer body to dissipate heat from the heat sink. They include a heat dissipation shell and a fan arranged on its side wall. An oil circulation pipeline is provided in the heat dissipation shell. The upper end of the oil circulation pipeline is connected to the heat sink in the transformer body through an inlet pipe, and the lower end of the oil circulation pipeline is connected to the bottom of the heat sink in the transformer body through an oil pump and an outlet pipe. A water cooling pipeline is also provided in the heat dissipation shell, and a spray mechanism is provided on the side of the heat dissipation shell facing the heat sink for spraying water toward the heat sink. The upper end of the water cooling pipeline is connected to the spray mechanism through a telescopic pipe, and the lower end is connected to the external water collecting tank through an inlet pipe.

[0012] Preferably, an air inlet hole is provided in the heat dissipation housing at a position corresponding to the fan, an air gathering ring is provided at the air inlet hole, a coaxial split ring is provided in the air gathering ring, the split ring is configured in an arc shape toward the fan, a servo motor is installed in the split ring at the arc-shaped position, a switching plate is installed after the output end of the servo motor passes through the split ring, yield openings are symmetrically provided on both sides of the switching plate, and guide holes that match the pre-yield openings are symmetrically provided at the arc-shaped position, and when the guide hole is connected to the yield opening, the airflow enters the split ring through the guide opening;

[0013] A water cooling zone is set inside the split ring, and the water cooling pipeline flows through the water cooling zone.

[0014] Preferably, an arc-shaped concave plate fixed on the arc shape of the split ring is provided on the side of the wind gathering ring facing the fan, the arc-shaped concave plate is concave inwardly toward the split ring, and the arc-shaped concave plate is symmetrically provided with connecting holes along the center, the connecting holes are located between the wind gathering ring and the split ring, the two connecting holes and the two guide holes are distributed in a cross shape along the center of the wind gathering ring, and arc-shaped plates are extended on both sides of the switching plate away from the center, the two arc-shaped plates are respectively matched with the two connecting holes, and the arc-shaped plates close the connecting holes when the guide holes are connected to the give-way ports;

[0015] An oil cooling zone is set between the split ring and the wind gathering ring, and the oil circulation pipeline flows through the oil cooling zone.

[0016] Preferably, an annular plate is provided at the end of the dividing ring and the wind gathering ring away from the fan, and air outlet holes are symmetrically opened on the annular plate along its center. Two partition plates located on one side of the connecting hole are provided between the annular plate and the arc-shaped concave plate, and the air outlet hole and the connecting hole are respectively located on both sides of the partition plate.

[0017] Preferably, the heat dissipation housing has a square hole on one side facing the heat dissipation fin, and a filter is embedded in the square hole.

[0018] Preferably, a square shell that is concave toward the wind gathering ring is provided in the square hole, and the square shell has a through hole that is adapted to the wind gathering ring.

[0019] Preferably, the spray mechanism includes a spray pipe arranged on the side of the heat dissipation shell facing the heat sink, and a plurality of nozzles are provided on the spray pipe at equal intervals. The heat dissipation shell is provided with symmetrically distributed longitudinal slide grooves on the side facing the heat sink, and a sliding assembly is provided in the longitudinal slide groove. The two ends of the spray pipe are respectively provided on the two sliding assemblies, and a driving part for driving the two sliding assemblies to move longitudinally is provided in the square shell.

[0020] Preferably, a branch pipeline is provided in the square shell, the middle portion of the branch pipeline is connected to the telescopic pipe, and both ends of the branch pipeline are connected to the spray pipe after passing through the longitudinal slide groove.

[0021] Preferably, the sliding assembly includes a block slidingly arranged in a longitudinal slide groove, a T-shaped plate is connected to the side of the block facing the heat sink, both ends of the spray pipe are respectively arranged on the vertical sections of the two T-shaped plates, and a driving plate is provided on the side of the block facing the square shell.

[0022] Preferably, the driving member includes two screws arranged in the heat dissipation shell and located outside the square shell, and the two ends of the screws are rotatably mounted on the mounting seats arranged on the inner wall of the heat dissipation shell, and the screw threads pass through the driving plate.

[0023] In summary, this application has the following beneficial technical effects:

[0024] First, the present invention can switch between three cooling modes: air cooling, oil-circulation mixed cooling, and spray water cooling. A servo motor precisely controls the direction of airflow (either into the water cooling zone or the oil cooling zone), enabling flexible adjustment of cooling strategies. Activating the spray mechanism in extreme high temperatures, in conjunction with the fan, significantly improves cooling efficiency, ensuring the transformer temperature remains within a safe range, effectively preventing overheating and extending service life.

[0025] Second, the spray pipe of this invention achieves uniform spray coverage of the heat sink through longitudinal movement and angular rotation (driven by a screw and adjusted by an electric push rod), while also providing targeted cleaning of dust from the filter surface. A water-collecting ring and branching pipe design ensure smooth water flow during the spray pipe's rotation, while a water baffle prevents backflow. This combines enhanced heat dissipation with self-maintenance capabilities, reducing manual cleaning frequency and maintaining long-term heat dissipation performance.

[0026] Third, this invention utilizes a tapered spiral water pipe and an annular spiral oil pipe design to increase the contact area between the fluid and the pipe wall. This utilizes the vortex effect to enhance turbulence. Combined with the high thermal conductivity material and condenser tube circulation within the cooling box, this significantly improves the heat exchange efficiency between water, oil, and air. The fan airflow is pre-cooled in the cooling zone before being blown toward the transformer body, creating a "secondary cooling" effect that further reduces core temperature and ensures stable operation under high temperatures and high loads. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and examples.

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the heat dissipation device of the present invention Figure 1 .

[0030] Figure 3 This is a schematic diagram of the structure of the heat dissipation device of the present invention Figure 2 .

[0031] Figure 4 This invention Figure 3 A partial enlarged view of point A in the middle.

[0032] Figure 5 It is a structural schematic diagram of the wind gathering ring of the present invention.

[0033] Figure 6 It is a schematic diagram of the structure between the wind gathering ring, the splitting ring and the arc-shaped concave plate of the present invention.

[0034] Figure 7 It is a schematic diagram of the structure between the split ring and the water pipe of the present invention.

[0035] Figure 8 This is a schematic diagram of the structure of the spray mechanism of the present invention Figure 1 .

[0036] Figure 9 This invention Figure 8 A partial enlarged view of point B in the middle.

[0037] Figure 10 This is a schematic diagram of the structure of the spray mechanism of the present invention Figure 2 .

[0038] In the figure, 1. Transformer body; 11. Heat sink; 2. Heat dissipation device; 20. Heat dissipation housing; 21. Fan; 23. Inlet pipe; 24. Outlet pipe; 26. Telescopic pipe; 27. Inlet pipe; 201. Wind gathering ring; 202. Splitting ring; 203. Servo motor; 204. Switching plate; 205. Diversion hole; 206. Arc concave plate; 207. Connecting hole; 208. Arc plate; 251. Water pipe; 252. Water inlet pipe; 253. Water outlet pipe; 221. Oil pipe; 222 , oil inlet pipe; 223, oil outlet pipe; 28, cooling box; 209, annular plate; 210, air outlet; 211, partition plate; 29, filter screen; 30, square shell; 4, spray mechanism; 41, spray pipe; 42, longitudinal slide; 43, branch pipeline; 44, block; 45, T-plate; 46, drive plate; 47, screw; 48, steering gear; 49, rack; 410, connecting plate; 411, guide rod; 412, electric push rod; 413, water gathering ring; 414, water baffle. DETAILED DESCRIPTION

[0039] The following combination Figures 1-10 The embodiments of the present invention are described in detail.

[0040] Current oil-immersed transformers rely primarily on corrugated fins for heat dissipation. While this design meets basic heat dissipation requirements, it still leaves much room for improvement in high-temperature environments. Especially in summer or under heavy loads, transformer temperatures often exceed safe limits, impacting stable operation and service life.

[0041] Based on this, the present invention proposes a self-regulating, water-cooled, integrated oil-immersed transformer. This design not only flexibly selects between water-cooling and air-cooling components based on the ambient temperature monitored by the transformer's housing temperature sensor, but also, when these two conventional cooling methods are insufficient, a motor-driven spray assembly rotates, using external rainwater to evenly spray the transformer body for cooling. This design not only effectively avoids safety hazards caused by overheating, but also achieves more efficient and stable heat dissipation in extreme environments, thereby improving the transformer's operating efficiency and service life.

[0042] Example 1:

[0043] Reference Figures 1 to 4 As shown, a self-regulating water-cooled integrated oil-immersed transformer comprises:

[0044] The transformer body 1 has a plurality of heat sinks 11 on both sides thereof for dissipating the temperature of the transformer body 1 , wherein the heat sinks 11 are constructed as a hollow shell structure filled with oil;

[0045] Several heat dissipation devices 2 are provided on both sides of the transformer body 1 to dissipate heat from the heat sink 11. They include a heat dissipation housing 20 and a fan 21 provided on its side wall. An oil circulation pipeline is provided in the heat dissipation housing 20. The upper end of the oil circulation pipeline is connected to the heat sink 11 in the transformer body 1 through an inlet pipe 23, and the lower end of the oil circulation pipeline is connected to the bottom of the heat sink 11 in the transformer body 1 through an oil pump and an outlet pipe 24; a water cooling pipeline is also provided in the heat dissipation housing 20, and a spray mechanism 4 is provided on the side of the heat dissipation housing 20 facing the heat sink 11 for spraying toward the heat sink 11. The upper end of the water cooling pipeline is connected to the spray mechanism 4 through a telescopic pipe 26, and the lower end is connected to the external water collecting tank through an inlet pipe 27.

[0046] When the temperature of the transformer body 1 is low, fan 21 starts to cool the transformer body 1 with air. If the temperature is high and the air cooling effect is insufficient, the oil pump on the oil circulation line starts to operate, pumping oil from the heat sink 11 into the heat sink housing 20. The air blown by fan 21 cools the oil in the heat sink housing 20. This is a hybrid cooling mode that combines air cooling and oil circulation. If hybrid cooling still cannot control the transformer temperature within a safe range, the spray mechanism 4 is activated. Water from the external water collection tank is introduced into the water cooling pipeline in the heat sink housing 20 through the inlet pipe 27. It is then evenly sprayed onto the heat sink 11 through the spray mechanism 4. The evaporation of water absorbs heat and quickly reduces the temperature of the transformer body 1. At the same time, fan 21 continues to operate to cool the water and oil in the heat sink housing 20. In extremely high temperature conditions, the activation of the spray mechanism 4 not only improves the heat dissipation efficiency, but also ensures the stable operation of the transformer, greatly extending the service life of the equipment.

[0047] Reference Figure 3 As shown, there is an air inlet hole corresponding to the fan 21 in the heat dissipation shell 20, and an air gathering ring 201 is provided at the air inlet hole. A coaxial split ring 202 is provided in the air gathering ring 201, and the split ring 202 is constructed in an arc shape toward the fan 21. A servo motor 203 is installed in the split ring 202 at the arc shape, and a switching plate 204 is installed after the output end of the servo motor 203 passes through the split ring 202. The switching plate 204 has symmetrically opened clearance ports on both sides, and symmetrically opened guide holes 205 that match the pre-clearance ports are opened at the arc shape. When the guide hole 205 is connected to the clearance port, the airflow enters the split ring 202 through the guide port.

[0048] The interior of the split ring 202 is configured as a water cooling zone, and the water cooling pipe flows through the water cooling zone.

[0049] Reference Figures 5 to 7As shown, an arc-shaped concave plate 206 fixed on the arc shape of the split ring 202 is provided on the side of the wind gathering ring 201 facing the fan 21. The arc-shaped concave plate 206 is concave inward toward the split ring 202. The arc-shaped concave plate 206 is symmetrically provided with connecting holes 207 along the center. The connecting holes 207 are located between the wind gathering ring 201 and the split ring 202. The two connecting holes 207 and the two guide holes 205 are distributed in a cross shape along the center of the wind gathering ring 201. Arc-shaped plates 208 extend on both sides of the switching plate 204 away from the center. The two arc-shaped plates 208 respectively cooperate with the two connecting holes 207. When the guide hole 205 is connected to the give way, the arc-shaped plate 208 closes the connecting hole 207.

[0050] An oil cooling zone is provided between the split ring 202 and the wind gathering ring 201, and the oil circulation pipeline flows through the oil cooling zone.

[0051] During the specific implementation process, when the guide hole 205 is connected to the clearance port, the curved plate 208 closes the connecting hole 207, and the airflow blown by the fan 21 enters the water cooling zone within the split ring 202 through the guide hole 205, forcing convection of the water in the water cooling pipeline to reduce the temperature of the water in the water cooling pipeline, thereby improving the cooling efficiency of the spray condenser mechanism. When the switching plate 204 rotates, specifically by the servo motor 203 driving the switching plate 204 to rotate, cutting off the connection between the guide hole 205 and the clearance port, the airflow cannot directly enter the water cooling zone, but instead enters the oil cooling zone through the connecting hole 207 of the wind-gathering ring 201 and the curved concave plate 206. The oil in the oil circulation pipeline will now be directly cooled by the wind blown by the fan 21, thereby maintaining stable operation of the transformer at a higher temperature. In this way, the heat dissipation system can flexibly adjust the cooling mode according to the actual operating conditions of the transformer. The precise control of the servo motor 203 ensures that the switching plate 204 can quickly respond and accurately change the direction of the airflow under different temperature conditions, thereby achieving the best cooling effect.

[0052] Reference Figure 3 As shown, the heat dissipation shell 20 has a square hole on the side facing the heat sink 11, and a filter 29 is embedded in the square hole. A square shell 30 is provided in the square hole, which is concave toward the wind gathering ring 201, and the square shell 30 has a through hole adapted to the wind gathering ring 201.

[0053] The wind blown by the fan 21 passes through the water cooling area or the oil cooling area, and then blows toward the transformer body 1 through the filter 29 in the square hole to cool the transformer body 1.

[0054] Reference Figures 5 to 7As shown, the water cooling pipeline includes a conical spiral water pipe 251, which is arranged in the water cooling area. The two ends of the water pipe 251 are respectively connected with a water inlet pipe 252 and a water outlet pipe 253. The water inlet pipe 252 in the upper wind gathering ring 201 is connected with the water outlet pipe 253 in the lower wind gathering ring 201, and the water outlet pipe 253 in the upper wind gathering ring 201 is connected with the telescopic pipe 26.

[0055] Through the conical spiral water pipe 251, the wind from the fan 21 can more effectively propel the water flow, increasing the contact area between the water and the pipe wall, thereby improving heat exchange efficiency. The innovative design of the conical spiral pipe causes the water flow in the waterway to form a vortex, further enhancing the turbulence of the water flow and promoting the rapid transfer and dispersion of heat.

[0056] The oil circulation pipeline includes an annular spiral oil pipe 221, which is arranged in the oil cooling area. The two ends of the oil pipe 221 are respectively connected with an oil inlet pipe 222 and an oil outlet pipe 223. The oil inlet pipe 222 in the upper wind gathering ring 201 is connected to the oil outlet pipe 223 in the lower wind gathering ring 201, and the oil outlet pipe 223 in the upper wind gathering ring 201 is connected to the inlet pipe 23.

[0057] Through the annular spiral oil pipe 221, the wind blown by the fan 21 can cool the oil more effectively, and accelerate the heat conduction by increasing the contact area between the oil and the pipe wall. The design of the annular spiral pipe also promotes the vortex effect inside the oil, improves the heat exchange efficiency, and ensures the stability and safety of the transformer in a high-temperature environment.

[0058] Furthermore, an annular plate 209 is provided at the end of the dividing ring 202 and the wind gathering ring 201 away from the fan 21, and air outlet holes 210 are symmetrically opened on the annular plate 209 along its center. Two partition plates 211 located on one side of the connecting hole 207 are provided between the annular plate 209 and the arc-shaped concave plate 206. The air outlet holes 210 and the connecting hole 207 are respectively located on both sides of the partition plate 211, and the oil pipe 221 is passed through the partition plate 211.

[0059] Through this design, the air flow blown out by the fan 21 enters the oil cooling area through the connecting hole 207, is absorbed by the oil in the annular spiral oil pipe 221, and is blocked by the partition plate 211. The wind force of the fan 21 is further guided and concentratedly blown toward the oil cooling area, achieving a more precise cooling effect, and then discharged from the air outlet 210.

[0060] Reference Figure 3 As shown, a cooling box 28 is provided at the bottom of the heat dissipation shell 20, in which coolant and condenser are provided. The inlet pipe 27 passes through the cooling box 28 and is connected to the water inlet pipe 252 of the wind gathering ring 201 below. The outlet pipe 24 passes through the cooling box 28 and is connected to the oil inlet pipe 222 of the wind gathering ring 201 below.

[0061] The condenser tube design of cooling box 28 facilitates rapid heat transfer within the condensation system, effectively reducing transformer temperature through circulating coolant. The inner wall of cooling box 28 is specially coated with a highly thermally conductive material to further enhance heat absorption and transfer. Furthermore, the circulation of coolant through the condenser tube ensures continuous and stable cooling, maintaining optimal transformer operating conditions.

[0062] When the cooling box 28 is not activated, the air blown by the fan 21 is used to reduce the temperature of the water cooling pipes and the oil cooling pipes, thereby enhancing their cooling capacity. When the cooling box 28 is activated, the low temperature of the water cooling pipes and the oil cooling pipes is transferred to the air blown by the fan 21. In other words, the air from the fan 21 is cooled after passing through the water cooling area or the oil cooling area. The cooled air is then blown toward the transformer body 1, enhancing the cooling effect.

[0063] Reference Figures 8 to 10 As shown, the spray mechanism 4 includes a spray pipe 41 arranged on the side of the heat dissipation shell 20 facing the heat sink 11, and a plurality of nozzles are evenly spaced on the spray pipe 41. The heat dissipation shell 20 is provided with symmetrically distributed longitudinal slide grooves 42 on the side facing the heat sink 11, and a sliding component is provided in the longitudinal slide groove 42. The two ends of the spray pipe 41 are respectively provided on the two sliding components, and a driving member for driving the two sliding components to move longitudinally is provided in the square shell 30.

[0064] A branch pipe 43 is provided in the square housing 30 . The middle portion of the branch pipe 43 is communicated with the telescopic pipe 26 . Both ends of the branch pipe 43 pass through the longitudinal slide groove 42 and are communicated with the spray pipe 41 .

[0065] When the spray mechanism is activated, water from the external water collection tank flows through inlet pipe 27, passes through the water cooling pipeline, and then flows into telescopic pipe 26. Then, it flows into branch pipe 43 and is evenly distributed to the nozzles on the spray pipe 41. The spray pipe 41 moves longitudinally along the heat sink 11, achieving comprehensive spray coverage. Water droplets sprayed from the nozzles form a water film on the surface of the heat sink 11, increasing the surface area of the heat sink 11 in contact with the air, thereby improving heat dissipation efficiency. Furthermore, the water spray cycle of the spray mechanism 4 helps remove dust from the heat sink 11, ensuring continuous heat dissipation and long-term stable operation of the transformer.

[0066] The present invention uses a driving member to drive the two sliding components to move in the longitudinal slide groove 42, thereby driving the spray pipe 41 to move longitudinally along the heat sink 11 to achieve full spray coverage. At the same time, the branch pipe 43 will also move accordingly, and the telescopic pipe 26 will perform telescopic movement to ensure that the connection between the branch pipe 43 and the spray pipe 41 is always tight.

[0067] Furthermore, the sliding assembly includes a block 44 that slides in the longitudinal slide groove 42, and the side of the block 44 facing the heat sink 11 is connected to a T-shaped plate 45, and the two ends of the spray pipe 41 are respectively arranged on the vertical sections of the two T-shaped plates 45; the side of the block 44 facing the square shell 30 is provided with a drive plate 46.

[0068] The driving component includes two screws 47 arranged inside the heat dissipation shell 20 and outside the square shell 30, and the two ends of the screws 47 are rotated on the mounting base set on the inner wall of the heat dissipation shell 20. The bottoms of the two screws 47 are connected by a belt drive, and the screws 47 are threaded through the driving plate 46.

[0069] The driving plate 46 is meshed with the threads on the screw rods 47. An electric motor is connected to the bottom of one of the screw rods 47. When the motor is running, its power is transmitted to the screw rod 47 through the belt drive, and then the other screw rod 47 is driven to rotate synchronously under the action of the belt drive. The two screw rods 47 rotate synchronously, so that the block 44 drives the T-shaped plate 45 and the spray pipe 41 to move along the longitudinal slide groove 42, ensuring that the water sprayed from the spray condensation pipe is evenly covered on each heat sink 11, thereby achieving an efficient cooling effect.

[0070] Example 2:

[0071] When the heat dissipation device 2 is in operation for a long time, dust and other impurities will accumulate on the filter 29, affecting the heat dissipation efficiency. Therefore, based on the first embodiment, the present invention includes a spray pipe 41 that can spray the filter 29 to remove dust from the surface of the filter 29, thereby maintaining the cleanliness and heat dissipation performance of the device.

[0072] Continue to refer to Figures 8 to 10 As shown, specifically, both ends of the spray pipe 41 are rotatably connected to the vertical section of the T-shaped plate 45, and a steering gear 48 is installed at both ends of the spray pipe 41. A rack 49 meshing with the steering gear 48 is slidably provided on the horizontal section of the T-shaped plate 45, and one end of the rack 49 is connected to a connecting plate 410 slidably provided in the longitudinal slide groove 42;

[0073] A guide rod 411 is provided on one side of the driving plate 46 along the length direction of the longitudinal slide groove 42, and one end of the connecting plate 410 located in the heat dissipation shell 20 slides with the guide rod 411, and an electric push rod 412 is provided on the driving plate 46, the output end of which is connected to the connecting plate 410.

[0074] When the filter 29 needs to be cleaned, the electric push rod 412 is activated, pulling the connecting plate 410 to move along the guide rod 411, tilting the nozzle of the spray pipe 41 downward toward the filter 29, and the spray pipe 41 immediately starts to spray, and the water flow washes the dust and impurities on the surface of the filter 29. At the same time, the motor is started to drive the spray pipe 41 to move along the longitudinal slide 42, evenly covering the surface of the filter 29 to ensure that the filter 29 is effectively cleaned.

[0075] Both ends of the spray pipe 41 are sealed and rotatably sleeved with water collecting rings 413 , and the side wall of the spray condensation pipe is provided with water collecting holes in the water collecting rings 413 . Both ends of the branch pipeline 43 are respectively connected to the two water collecting rings 413 .

[0076] The purpose of setting the water collecting ring 413 is to adapt to the rotation of the spray pipe 41, ensuring that when the spray pipe 41 is rotated to any angle, the water in the branch pipe 43 can still smoothly enter the spray pipe 41, thereby maintaining stable water pressure and flow at different angles.

[0077] Furthermore, a water baffle 414 is provided in the middle area of the branch pipe 43 located in the square shell 30, and the lower end of the water baffle 414 is inclined toward the direction of the filter screen 29. The purpose of setting the inclined water baffle 414 is to prevent the water flow from impacting the filter screen 29 and entering the water collecting ring, so as to protect the water cooling pipe and the oil circulation pipe in the water collecting ring, thereby ensuring the stable operation and long-term maintenance of the entire cooling system.

[0078] In addition, the rotatable spray pipe 41 provided in the present invention is not only used to clean the filter 29, but also can flexibly adjust the spray angle and intensity as needed during the operation of the heat dissipation device 2, so as to perform targeted cooling on each heat sink 11 from different angles.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as exemplary and non-restrictive.

[0080] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A self-regulating water-cooled integrated oil-immersed transformer, characterized in that: include: The transformer body (1) is provided with a plurality of heat sinks (11) on both sides thereof, and the heat sinks (11) are constructed as a hollow shell structure and filled with oil; A plurality of heat dissipation devices (2) are arranged on both sides of the transformer body (1), and include a heat dissipation housing (20) and a fan (21) arranged on the side wall thereof. An oil circulation pipeline is arranged in the heat dissipation housing (20), the upper end of the oil circulation pipeline is connected to the heat dissipation fin (11) of the transformer body (1) through an inlet pipe (23), and the lower end of the oil circulation pipeline is connected to the bottom of the heat dissipation fin (11) of the transformer body (1) through an oil pump and an outlet pipe (24); a water cooling pipeline is also arranged in the heat dissipation housing (20), and a spray mechanism (4) for spraying toward the heat dissipation fin (11) is provided on the side of the heat dissipation housing (20) facing the heat dissipation fin (11). The upper end of the water cooling pipeline is connected to the spray mechanism (4) through a telescopic pipe (26), and the lower end is connected to an external water collecting tank through an inlet pipe (27).

2. A self-regulating water-cooled integrated oil-immersed transformer according to claim 1, characterized in that: An air inlet hole is provided in the heat dissipation housing (20) at a position corresponding to the fan (21), and an air gathering ring (201) is provided at the air inlet hole. A coaxial split ring (202) is provided in the air gathering ring (201), and the split ring (202) is configured in an arc shape in the direction of the fan (21). A servo motor (203) is installed in the split ring (202) at the arc shape. A switching plate (204) is installed after the output end of the servo motor (203) passes through the split ring (202). The switching plate (204) is symmetrically provided with clearance openings on both sides, and guide holes (205) that match the pre-clearance openings are symmetrically provided at the arc shape. When the guide holes (205) are connected to the clearance openings, air flows into the split ring (202) through the guide openings. A water cooling zone is provided inside the split ring (202), and a water cooling pipeline flows through the water cooling zone.

3. A self-regulating water-cooled integrated oil-immersed transformer according to claim 2, characterized in that: A curved concave plate (206) is provided on the side of the wind gathering ring (201) facing the fan (21) and is fixed at the arc shape of the split ring (202). The curved concave plate (206) is concavely arranged in the direction of the split ring (202). The curved concave plate (206) is symmetrically provided with a communication hole (207) along the center. The communication hole (207) is located between the wind gathering ring (201) and the split ring (202). The two communication holes (207) and the two guide holes (205) are distributed in a cross shape along the center of the wind gathering ring (201). Curved plates (208) extend on both sides of the switching plate (204) away from the center. The two curved plates (208) are respectively matched with the two communication holes (207). When the guide hole (205) is connected to the clearance port, the curved plate (208) closes the communication hole (207). An oil cooling zone is provided between the split ring (202) and the wind gathering ring (201), and the oil circulation pipeline flows through the oil cooling zone.

4. A self-regulating water-cooled integrated oil-immersed transformer according to claim 3, characterized in that: An annular plate (209) is provided at one end of the split ring (202) and the wind gathering ring (201) away from the fan (21). The annular plate (209) is provided with air outlet holes (210) symmetrically along its center. Two partition plates (211) located on one side of the connecting hole (207) are provided between the annular plate (209) and the arc-shaped concave plate (206). The air outlet holes (210) and the connecting hole (207) are respectively located on both sides of the partition plates (211).

5. A self-regulating water-cooled integrated oil-immersed transformer according to claim 1, characterized in that: The heat dissipation housing (20) has a square hole on one side facing the heat dissipation fin (11), and a filter screen (29) is embedded in the square hole.

6. A self-regulating water-cooled integrated oil-immersed transformer according to claim 5, characterized in that: A square shell (30) concave toward the wind gathering ring (201) is provided in the square hole, and a through hole adapted to the wind gathering ring (201) is provided on the square shell (30).

7. A self-regulating water-cooled integrated oil-immersed transformer according to claim 6, characterized in that: The spray mechanism (4) includes a spray pipe (41) provided on the side of the heat dissipation housing (20) facing the heat dissipation fin (11), a plurality of spray heads are provided on the spray pipe (41) at equal intervals, a symmetrically distributed longitudinal slide groove (42) is provided on the side of the heat dissipation housing (20) facing the heat dissipation fin (11), a sliding assembly is provided in the longitudinal slide groove (42), two ends of the spray pipe (41) are respectively provided on the two sliding assemblies, and a driving member for driving the two sliding assemblies to move longitudinally is provided in the square housing (30).

8. A self-regulating water-cooled integrated oil-immersed transformer according to claim 7, characterized in that: A branch pipeline (43) is provided in the square housing (30). The middle portion of the branch pipeline (43) is communicated with the telescopic pipe (26). Both ends of the branch pipeline (43) pass through the longitudinal chute (42) and are communicated with the spray pipe (41).

9. A self-regulating water-cooled integrated oil-immersed transformer according to claim 7, characterized in that: The sliding assembly includes a block (44) slidingly arranged in a longitudinal slide groove (42), a T-shaped plate (45) is connected to the side of the block (44) facing the heat sink (11), two ends of the spray pipe (41) are respectively arranged on the vertical sections of the two T-shaped plates (45), and a driving plate (46) is provided on the side of the block (44) facing the inside of the square shell (30).

10. A self-regulating water-cooled integrated oil-immersed transformer according to claim 9, characterized in that: The driving member comprises two screws (47) arranged in the heat dissipation housing (20) and outside the square housing (30), and the two ends of the screws (47) are rotatably mounted on mounting seats arranged on the inner side wall of the heat dissipation housing (20), and the screws (47) are threadedly passed through the driving plate (46).

Images