A safe and efficient oil-immersed power transformer

Abstract

This application discloses a safe and efficient oil-immersed power transformer, belonging to the field of power transformer technology, which improves the problem of inconvenient dust collection from the dustproof screen. It includes a transformer body, with a cooling mechanism fixedly connected to the outer surface of the transformer body, and a cleaning mechanism slidably connected to the outer surface of the cooling mechanism. The cleaning mechanism of this application can clean the air inlet dustproof plate, preventing dust accumulation from affecting the performance of the cooling mechanism. The collection frame moves up and down under the drive of a dual-axis motor, working in conjunction with a suction fan and a collection chamber to efficiently collect and clean dust from the air inlet dustproof plate. This reduces the workload and frequency of manual maintenance, lowers operation and maintenance costs, and avoids the problem of dustproof screen blockage due to untimely dust cleaning, which would affect the transformer's heat dissipation. This ensures that the transformer is always in good operating condition and maintains its high-efficiency performance.

Description

Technical Field

[0001] This utility model relates to the field of power transformer technology, and in particular to a safe and efficient oil-immersed power transformer. Background Technology

[0002] An oil-immersed power transformer is a type of transformer whose interior is filled with transformer oil, which serves to cool and insulate the power transformer. The main function of an oil-immersed transformer is to dissipate heat and cool the transformer oil. Generally, a heat dissipation mechanism is installed on the outside of the transformer to increase the contact area between the transformer oil and the air, thereby accelerating the efficiency of natural air cooling and preventing the transformer oil temperature from rising drastically.

[0003] Chinese utility model patent CN220543715U discloses an oil-immersed power transformer, including a housing. A partition is fixedly connected to the inner wall of the housing, and the transformer body is mounted on top of the partition. A high-voltage bushing is also mounted on top of the housing. A cooler is fixedly installed at the bottom of the housing. A vertical plate is fixedly connected to the bottom of the partition, and a horizontal plate is fixedly connected to one side of the vertical plate. A water pump is fixedly connected to the inner bottom wall of the housing. The cooler cools the coolant at the bottom of the housing. The cooled coolant is then pumped through a serpentine tube to cool the transformer oil inside the housing. The cooled coolant then flows back into the housing through the serpentine tube, achieving a cooling cycle. A cooling fan installed inside the housing provides air cooling to the surface of the housing. During prolonged use, a motor drives a drive block to clean the dust filter with a brush plate, further improving heat dissipation.

[0004] In existing oil-immersed power transformers, when the brush plate cleans the dust screen, dust inevitably flies up. Due to the lack of effective dust collection measures, this flying dust is very easy to re-adhere to the dust screen, which not only reduces the cleaning effect, but may also cause the dust screen to become more clogged over time. Therefore, there is a problem that it is not convenient to collect the dust on the dust screen. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a safe and efficient oil-immersed power transformer.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a safe and efficient oil-immersed power transformer, comprising a transformer body, a cooling mechanism fixedly connected to the outer surface of the transformer body, a cleaning mechanism slidably connected to the outer surface of the cooling mechanism, the cooling mechanism comprising a fixed frame fixedly connected to the outer surface of the transformer body, and the outer surface of the transformer body being provided with multiple sets of heat dissipation fins, the inner wall of the fixed frame being fixedly connected with multiple sets of heat dissipation fans, and the outer surface of the fixed frame being fixedly connected with an air inlet dustproof plate and an air outlet dustproof plate; the cleaning mechanism comprising a collection frame and a cleaning rod slidably connected to the outer surface of the air inlet dustproof plate, the inner wall of the collection frame being fixedly connected to the outer surface of the cleaning rod, and the collection frame having a collection groove inside, the inner wall of the collection groove being fixedly connected with a suction fan and a collection dustproof plate.

[0009] In a preferred embodiment of the safe and efficient oil-immersed power transformer described in this utility model, the cleaning mechanism further includes a dual-shaft motor and a fixing plate fixedly connected to the base of the transformer body. The output shafts at both ends of the dual-shaft motor are fixedly connected to worm gears. The outer surface of the worm gears is meshed with a worm wheel, and the outer surface of the worm wheel is fixedly connected to a threaded rod.

[0010] By adopting the above technical solution, the output shaft of the dual-axis motor can drive the connecting rods on both sides to rotate synchronously by starting the dual-axis motor.

[0011] In a preferred embodiment of the safe and efficient oil-immersed power transformer described in this utility model, a connecting rod is fixedly connected to the outer surface of the threaded rod, and the outer surface of the connecting rod is threadedly connected to the outer surface of the collecting frame.

[0012] By adopting the above technical solution, the screw rod rotates to drive the collection frame to move up and down, which facilitates the cleaning of dust on the outer surface of the air inlet dustproof plate.

[0013] In a preferred embodiment of the safe and efficient oil-immersed power transformer described in this utility model, a limiting rod is slidably connected to the outer surface of the collecting frame, and a fixed frame is fixedly connected to the outer surface of the limiting rod.

[0014] By adopting the above technical solution, the limiting rod can be used to limit the collection frame, preventing the collection frame from rotating and allowing the collection frame to slide stably along the outer surface of the limiting rod.

[0015] In a preferred embodiment of the safe and efficient oil-immersed power transformer described in this utility model, a fixed slide rail is fixedly connected to the lower surface of the collecting frame, and a collecting bin is slidably connected to the outer surface of the fixed slide rail.

[0016] By adopting the above technical solution, the collection chamber facilitates the collection of dust on the outer surface of the air intake dustproof plate.

[0017] As a preferred embodiment of the safe and efficient oil-immersed power transformer described in this utility model, an electrical control cabinet is fixedly connected to the outer surface of the transformer body, and a temperature sensor is fixedly connected to the outer surface of the transformer body. The outer surface wire of the temperature sensor is electrically connected to the controller of the electrical control cabinet.

[0018] By adopting the above technical solution, the temperature sensor facilitates the detection of the oil temperature inside the transformer body. When the temperature is too high, the power of the cooling fan is increased, which in turn increases the air circulation speed within the fixed frame, thereby cooling the oil inside the transformer body.

[0019] (III) Beneficial Effects

[0020] This invention provides a safe and efficient oil-immersed power transformer. It has the following advantages:

[0021] 1. The cleaning mechanism can clean the air intake dustproof plate, preventing dust accumulation from affecting the performance of the cooling mechanism. The collection frame moves up and down under the drive of a dual-axis motor. Together with the suction fan and collection chamber, it can efficiently collect and clean the dust on the air intake dustproof plate, reducing the workload and frequency of manual maintenance, lowering operation and maintenance costs, and avoiding the problem of dust screen blockage caused by untimely dust cleaning, which would affect the heat dissipation of the transformer. This ensures that the transformer is always in good operating condition and maintains its efficient working performance.

[0022] 2. By monitoring the oil temperature inside the transformer body in real time through a temperature sensor and automatically adjusting the power of the cooling fan according to the oil temperature, an intelligent and efficient cooling function is achieved. This ensures that the transformer always operates in a suitable temperature environment, effectively extending the service life of the transformer and improving its operational stability and reliability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a front cross-sectional view of the overall structure of this utility model;

[0026] Figure 3 This is a front structural diagram of the collecting frame in this utility model;

[0027] Figure 4 This is a top-view cross-sectional structural diagram of the collecting frame in this utility model.

[0028] In the diagram, 1. Transformer body; 2. Cooling mechanism; 201. Fixed frame; 202. Heat dissipation fins; 203. Cooling fan; 204. Exit dustproof plate; 205. Inlet dustproof plate; 206. Temperature sensor; 3. Cleaning mechanism; 301. Suction fan; 302. Connecting rod; 303. Worm gear; 304. Worm; 305. Dual-axis motor; 306. Fixed plate; 307. Limiting rod; 308. Threaded rod; 309. Collection frame; 310. Collection chamber; 311. Fixed slide rail; 312. Cleaning rod; 313. Collection groove; 314. Collection dustproof plate. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a safe and efficient oil-immersed power transformer, including a transformer body 1. A cooling mechanism 2 is fixedly connected to the outer surface of the transformer body 1. A cleaning mechanism 3 is slidably connected to the outer surface of the cooling mechanism 2. The cleaning mechanism 3 includes a collection frame 309 and a cleaning rod 312 slidably connected to the outer surface of the air inlet dustproof plate 205. The inner wall of the collection frame 309 is fixedly connected to the outer surface of the cleaning rod 312. A collection groove 313 is provided inside the collection frame 309. A suction fan 301 and a collection dustproof plate 314 are fixedly connected to the inner wall of the collection groove 313.

[0032] The specific cleaning mechanism 3 also includes a dual-axis motor 305 and a fixing plate 306 fixedly connected to the base of the transformer body 1. The output shafts at both ends of the dual-axis motor 305 are fixedly connected to worm gears 304. The outer surface of the worm gears 304 is meshed with a worm wheel 303. The outer surface of the worm wheel 303 is fixedly connected to a threaded rod 308. The outer surface of the threaded rod 308 is fixedly connected to a connecting rod 302. The outer surface of the connecting rod 302 is threadedly connected to the outer surface of the collection frame 309. The outer surface of the collection frame 309 is slidably connected to a limit rod 307. The outer surface of the limit rod 307 is fixedly connected to a fixing frame 201. The lower surface of the collection frame 309 is fixedly connected to a fixing slide rail 311. The outer surface of the fixing slide rail 311 is slidably connected to a collection chamber 310.

[0033] The further cleaning mechanism 3 can clean the air inlet dustproof plate 205 to prevent dust accumulation from affecting the performance of the cooling mechanism 2. The collection frame 309 moves up and down under the drive of the dual-axis motor 305. In conjunction with the suction fan 301 and the collection chamber 310, it can efficiently collect and clean the dust on the air inlet dustproof plate 205, reducing the workload and frequency of manual maintenance, lowering the operation and maintenance costs, and avoiding the problem of dust screen blockage caused by untimely dust cleaning, which in turn affects the heat dissipation of the transformer. This ensures that the transformer is always in good operating condition and maintains its efficient working performance.

[0034] Example 2

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The cooling mechanism 2 includes a fixed frame 201 fixedly connected to the outer surface of the transformer body 1. The outer surface of the transformer body 1 is provided with multiple sets of heat dissipation fins 202. Multiple sets of heat dissipation fans 203 are fixedly connected to the inner wall of the fixed frame 201. An air inlet dustproof plate 205 is fixedly connected to the outer surface of the fixed frame 201, and an air outlet dustproof plate 204 is fixedly connected to the outer surface of the fixed frame 201.

[0036] Specifically, an electrical control cabinet is fixedly connected to the outer surface of the transformer body 1, and a temperature sensor 206 is fixedly connected to the outer surface of the transformer body 1. The outer surface wire of the temperature sensor 206 is electrically connected to the controller of the electrical control cabinet.

[0037] Furthermore, the oil temperature inside the transformer body 1 is monitored in real time by temperature sensor 206, and the power of the cooling fan 203 is automatically adjusted according to the oil temperature, realizing an intelligent and efficient cooling function. This ensures that the transformer always operates in a suitable temperature environment, effectively extending the service life of the transformer and improving its operational stability and reliability.

[0038] Working principle: When the oil-immersed power transformer is working, the temperature sensor 206 detects the oil temperature inside the transformer body 1 in real time and transmits the data to the controller of the electrical control cabinet. When the oil temperature is too high, the controller increases the power of the cooling fan 203 to accelerate air circulation within the fixed frame 201. The cooling fins 202 cool the oil in the transformer body 1. The inlet dustproof plate 205 and outlet dustproof plate 204 prevent dust and other impurities from entering the cooling mechanism 2. When the cleaning mechanism 3 is working, the dual-axis motor 305 is powered on and starts. Its two output shafts drive the worm gear 304 to rotate synchronously. The worm gear 304 meshes with the worm wheel 303, transmitting power to the worm wheel 303, causing it to rotate. The threaded rod 308 fixed to the outer surface of the worm wheel 303 rotates accordingly. Since the threaded rod 308 is threadedly connected to the collecting frame 309 via the connecting rod 302, when the threaded rod 308 rotates, the collecting frame 309 moves up and down along the limit rod 307 under the action of the thread. During the movement of the collecting frame 309, the internal suction fan 301 starts operating, generating strong suction to lift the inlet dustproof plate. Dust adhering to the outer surface of the 205 is sucked into the collection groove 313 inside the collection frame 309. When the dust enters the collection groove 313, the dustproof plate 314 plays a role in filtering and intercepting the dust. The dustproof plate 314 has a fine filter structure, which can effectively block dust particles and ensure that only air can be discharged through the filter, while the dust is trapped in the collection groove 313. As the collection frame 309 moves up and down, dust at different positions of the inlet dustproof plate 205 can be sucked in by the suction fan 301. The collection chamber 310 is slidably connected to the fixed slide rail 311 on the lower surface of the collection frame 309. The dust intercepted in the collection groove 313 gradually accumulates and eventually falls into the collection chamber 310 through the opening at the bottom of the collection frame 309. When the collection chamber 310 has collected a lot of dust, it can be pulled out from the fixed slide rail 311 for cleaning. After cleaning, it can be reinstalled in its original position to continue collecting dust.

[0039] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A safe and efficient oil-immersed power transformer, comprising a transformer body (1), characterized in that: A cooling mechanism (2) is fixedly connected to the outer surface of the transformer body (1), and a cleaning mechanism (3) is slidably connected to the outer surface of the cooling mechanism (2); The cooling mechanism (2) includes a fixed frame (201) fixedly connected to the outer surface of the transformer body (1), and the outer surface of the transformer body (1) is provided with multiple sets of heat dissipation fins (202). Multiple sets of heat dissipation fans (203) are fixedly connected to the inner wall of the fixed frame (201), and an air inlet dustproof plate (205) is fixedly connected to the outer surface of the fixed frame (201). An air outlet dustproof plate (204) is fixedly connected to the outer surface of the fixed frame (201). The cleaning mechanism (3) includes a collection frame (309) and a cleaning rod (312) slidably connected to the outer surface of the air inlet dustproof plate (205). The inner wall of the collection frame (309) is fixedly connected to the outer surface of the cleaning rod (312), and a collection groove (313) is provided inside the collection frame (309). A suction fan (301) and a collection dustproof plate (314) are fixedly connected to the inner wall of the collection groove (313).

2. The safe and efficient oil-immersed power transformer according to claim 1, characterized in that: The cleaning mechanism (3) also includes a dual-axis motor (305) and a fixing plate (306) fixedly connected to the base of the transformer body (1). The output shafts at both ends of the dual-axis motor (305) are fixedly connected to worm gears (304). The outer surface of the worm gears (304) is meshed with a worm wheel (303). The outer surface of the worm wheel (303) is fixedly connected to a threaded rod (308).

3. A safe and efficient oil-immersed power transformer according to claim 2, characterized in that: A connecting rod (302) is fixedly connected to the outer surface of the threaded rod (308), and the outer surface of the connecting rod (302) is threadedly connected to the outer surface of the collecting frame (309).

4. A safe and efficient oil-immersed power transformer according to claim 3, characterized in that: The outer surface of the collecting frame (309) is slidably connected to a limiting rod (307), and the outer surface of the limiting rod (307) is fixedly connected to a fixing frame (201).

5. A safe and efficient oil-immersed power transformer according to claim 4, characterized in that: The lower surface of the collection frame (309) is fixedly connected to a fixed slide rail (311), and the outer surface of the fixed slide rail (311) is slidably connected to a collection chamber (310).

6. A safe and efficient oil-immersed power transformer according to claim 1, characterized in that: An electrical control cabinet is fixedly connected to the outer surface of the transformer body (1), and a temperature sensor (206) is fixedly connected to the outer surface of the transformer body (1). The outer surface wire of the temperature sensor (206) is electrically connected to the controller of the electrical control cabinet.

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