Oil immersed transformer convenient for filtering transformer oil

Abstract

The invention relates to the technical field of oil-immersed transformers, and particularly discloses an oil-immersed transformer convenient for filtering transformer oil, the side surface of a main body is fixedly connected with an oil drain valve, the bottom of the main body is fixedly connected with a heat dissipation part, and the side surface of an oil tank part is fixedly connected with one side, far away from the main body, of the oil drain valve; the oil tank component comprises an oil tank mechanism, and the bottom of the oil tank mechanism is fixedly connected with the top of the body. According to the oil immersed transformer capable of conveniently filtering the transformer oil, the filtering mechanism is arranged, the intercepting mechanism can intercept and filter large-particle impurities in oil liquid, meanwhile, the impurities intercepted by the intercepting mechanism can be discharged and collected in time through the recycling mechanism, blockage caused by accumulation of the large-particle impurities in the filtering pipe is avoided, and after filtering of the large-particle impurities is completed, the oil immersed transformer can be recycled. And the transformer oil purified for the first time enters the oil filter through the oil return pipe for further deep purification and recovery treatment.

Description

Technical Field

[0001] This invention relates to the field of oil-immersed transformer technology, specifically to an oil-immersed transformer that facilitates the filtration of transformer oil. Background Technology

[0002] Oil-immersed transformers are the most widely used type of transformer in power systems. Their core characteristic is that the core and windings are completely submerged in transformer oil, which serves as the insulating and cooling medium, enabling multiple key functions. Operating based on the law of electromagnetic induction, they convert electrical energy from one voltage level to another using the principle of "voltage ratio = turns ratio" through windings with different numbers of turns (more turns in high-voltage windings and fewer turns in low-voltage windings). This allows them to reduce high voltage to low voltage (e.g., in distribution scenarios) and increase low voltage to high voltage (e.g., in transmission scenarios), thus facilitating the transfer of electrical energy between different voltage levels in the power system. Transformer oil plays a crucial role in this process: firstly, it effectively isolates live components such as the windings and core from grounded components like the tank, ensuring electrical insulation and preventing short circuits or partial discharges; secondly, through natural convection or forced circulation, the oil transfers the heat generated by losses (copper losses, iron losses) in the windings and core to the tank walls or cooling devices, ultimately dissipating it to the outside and maintaining the equipment temperature within a normal range.

[0003] In the existing technology, oil-immersed transformers rely on external oil filtration equipment for offline filtration. The oil needs to be extracted, filtered, and then reinjected after the transformer is shut down. This method is inefficient and time-consuming. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: an oil-immersed transformer for easy filtration of transformer oil, comprising: The main body has an oil drain valve fixedly connected to its side and a heat dissipation component fixedly connected to its bottom. The oil tank component is used to filter transformer oil, and the side of the oil tank component is fixedly connected to the side of the drain valve away from the main body. The oil tank component includes an oil tank mechanism. The bottom of the oil tank mechanism is fixedly connected to the top of the main body. A return oil pipe is fixedly connected to the side of the oil tank mechanism. An oil filter is fixedly connected to the side of the return oil pipe. A filter mechanism is fixedly connected to the end of the return oil pipe away from the oil tank mechanism. A connecting valve is fixedly connected to the other side of the filter mechanism. The other side of the connecting valve is fixedly connected to the end of the drain valve away from the main body. During operation, first open the drain valve of the transformer body to allow the oil to flow into the connecting valve; at the same time, start the oil filter to introduce the transformer oil into the filtration mechanism for initial filtration, intercepting large particulate impurities in the oil. Under the continuous drive of the oil filter, the oil that has passed the initial filtration enters the main body of the oil filter to further remove fine impurities, moisture, gas and aging products, fully restoring the insulation and cooling performance of the transformer oil. The purified transformer oil is continuously transported to the oil tank mechanism through the return oil pipe, forming convection with the original oil in the tank, accelerating the uniform improvement of the overall oil quality. Throughout the filtration process, the filtered oil flows directly back to the circulation oil circuit of the oil tank mechanism, realizing online purification operation without shutting down the transformer. The filtration mechanism includes a filter housing, a filter tube fixedly connected to the inner side of the filter housing, one end of the filter tube fixedly connected to the oil return pipe, the other end of the filter tube fixedly connected to the oil drain valve, a recovery mechanism fixedly connected to the side of the filter tube, an interception mechanism fixedly connected to the inner side of the recovery mechanism, and a clearance groove provided on the side of the filter tube. When transformer oil enters the filter tube through the drain valve, it flows through the interception mechanism, which filters out large particles of impurities in the oil. At the same time, the impurities intercepted by the interception mechanism can be discharged and collected in time through the recovery mechanism to avoid large particles of impurities accumulating in the filter tube and causing blockage. After the large particles of impurities are filtered, the transformer oil that has undergone the first purification enters the oil filter through the return oil pipe for further deep purification and recovery treatment. Preferably, the interception mechanism includes a mesh plate, the side of which is fixedly connected to the inner side of the filter tube, a guide vane rotatably connected to the side of the mesh plate, a rotating shaft fixedly connected to the side of the guide vane, the side of the rotating shaft rotatably connected to the inner side of the mesh plate, cleaning rods fixedly connected to both sides of the rotating shaft away from the guide vane, the side of the cleaning rods contacting the side of the mesh plate, a connecting shaft fixedly connected to the side of the rotating shaft away from the cleaning rods, a squeezing cylinder fixedly connected to the other end of the connecting shaft, and a scraper fixedly connected to the inner side of the squeezing cylinder; Preferably, during the process of the oil filter driving the transformer oil to continuously flow through the filter tube, the screen plate first filters and intercepts large particulate impurities in the oil, initially purifying the oil. At this time, the flowing transformer oil will drive the guide plate to rotate on the screen plate through the impact, realizing the self-sufficiency of clean power by utilizing the kinetic energy of the oil. Preferably, when the guide plate rotates, it will synchronously drive the cleaning rod to rotate on the side of the screen through the rotating shaft. The contact rotation between the cleaning rod and the side of the screen forms continuous cleaning, which removes the impurities attached to the screen surface in time, avoids the screen blockage problem caused by the accumulation of impurities in traditional filtration, and ensures smooth oil flow in the filter tube. Preferably, when the rotating shaft rotates, it also drives the extrusion cylinder to rotate through the connecting shaft. The extrusion cylinder rolls the impurities gathered around the baffle into the inside. Then, through contact and extrusion with the recycling mechanism, the intercepted impurities are sent to the recycling mechanism for centralized collection, thereby realizing the automatic separation and collection of impurities. Preferably, the recycling mechanism includes a recycling shell, the inner side of which is fixedly connected to the side of the filter tube, a sliding rod slidably connected to the inner side of the recycling shell, a baffle fixedly connected to the side of the sliding rod, the sides of the baffle slidably connected to a clearance groove and the inner side of the recycling shell, a first spring sleeved on the sliding rod, the top of the first spring fixedly connected to the inner side of the recycling shell, the bottom of the first spring fixedly connected to the top of the baffle, a cylindrical block fixedly connected to the bottom of the baffle, a return pipe fixedly connected to the bottom of the recycling shell, the other end of the return pipe fixedly connected to the inner side of the filter tube, a one-way valve fixedly connected to the inner side of the return pipe near the filter tube, a water pump fixedly connected to the side of the return pipe, and filter screens fixedly connected to both sides of the inner cavity of the recycling shell. Preferably, during the process of the oil filter driving the transformer oil to continuously flow through the filter tube, the oil is driven by the guide vane to drive the extrusion cylinder to rotate, forming an automated power transmission. When the extrusion cylinder rotates to contact the cylindrical block, the cylindrical block is driven by the extrusion force to move the slide rod upward, and at the same time, the baffle is disengaged from the relief groove and enters the inner side of the recycling shell, while the first spring sleeved on the slide rod is extruded. Preferably, at the same time, the extrusion cylinder continues to rotate and drives the impurities gathered around the baffle to move synchronously. When the extrusion cylinder rotates, the scraper set on its inner side can scrape the inner wall of the filter tube close to the screen plate to remove the residual impurities attached to the inner wall, and avoid the long-term accumulation of impurities causing pipe blockage or reduced filtration efficiency. When the side of the extrusion cylinder is continuously squeezed by the cylindrical block, after the baffle is completely entered into the recycling shell, the extrusion cylinder can smoothly send the impurities and a small amount of transformer oil into the recycling shell to achieve the directional collection of impurities and prevent impurities from flowing back and contaminating the oil. Preferably, when impurities and a small amount of oil flow downward into the recycling shell, the filter screen separates the two. The impurities are trapped and collected, while the transformer oil that passes through the filter screen enters the return pipe. At this time, the water pump is turned on, and the oil is sent back to the filter pipe through the one-way valve at the other end of the return pipe. The one-way valve can prevent the oil from flowing backward, ensuring that the recycled oil returns to the filtration cycle. This avoids oil waste, reduces environmental pollution, and realizes closed-loop recycling of oil. Preferably, the heat dissipation component includes a heat dissipation shell, the side of which is fixedly connected to the inner side of the main body, a bracket fixedly connected to the inner side of the heat dissipation shell, a driving component fixedly connected to the top of the bracket, a fan blade rotatably connected to the bottom of the bracket, the output end of the driving component being fixedly connected to the inner side of the fan blade, an air exchange screen fixedly connected to the side of the heat dissipation shell away from the bracket, a cleaning mechanism rotatably connected to both sides of the air exchange screen, and a contact mechanism fixedly connected to both sides of the air exchange screen. Preferably, when the main body is running, after the drive unit is turned on, its output end will drive the fan blades to rotate on the bracket. During the rotation of the fan blades, heat exchange and exhaust can be carried out on the inside of the main body, and the internal heat can be dissipated in time to avoid the main body from being affected by excessive temperature. Preferably, the rotation of the fan blades will simultaneously drive the cleaning mechanism to rotate on the side of the ventilation screen, and cleaning will be achieved by contacting the side of the ventilation screen to prevent dust from accumulating on the surface of the ventilation screen and avoid interfering with the heat exchange efficiency. Preferably, in addition, contact mechanisms are provided on both sides of the ventilation screen. When the cleaning mechanism rotates and cleans the ventilation screen, it will come into contact with the contact mechanism and squeeze it. With the help of this squeezing action, the dust and other dirt attached to the cleaning mechanism itself can be cleaned. Preferably, the cleaning mechanism includes a second cleaning rod, the top of which is fixedly connected to the middle of the fan blade, and a first cleaning rod fixedly connected to the bottom of the second cleaning rod. The first cleaning rod and the second cleaning rod are arranged in a figure-eight pattern on both sides of the ventilation screen, and the sides of both the first cleaning rod and the second cleaning rod are in contact with both sides of the screen. Preferably, when the output end of the drive unit drives the fan blade to rotate on the bracket, the fan blade will simultaneously drive the cleaning rod one and the cleaning rod two to rotate in contact on both sides of the ventilation screen. The cleaning rod one and the cleaning rod two are arranged in a cross structure on the upper and lower sides of the ventilation screen to ensure that the sides of the ventilation screen are cleaned without dead angles during the rotation process. Preferably, dust adhering to the surface of the ventilation screen is removed to prevent dust accumulation and blockage of the heat exchange channels, ensuring that the heat dissipation efficiency of the ventilation screen is not disturbed, thereby maintaining the stable heat dissipation effect of the main equipment. Preferably, the contact mechanism includes two contact blocks. The side of the bottom contact block is fixedly connected to the inner side of the mesh plate. A round shaft is slidably connected to the top of each bottom contact block. The top of the round shaft is fixedly connected to the bottom of the top contact block. A second spring is sleeved on the round shaft. Both ends of the second spring are fixedly connected to the two contact blocks.

[0005] This invention provides an oil-immersed transformer that facilitates the filtration of transformer oil. It offers the following advantages: 1. This oil-immersed transformer, which facilitates the filtration of transformer oil, is equipped with a filtration mechanism. The interception mechanism intercepts and filters large particulate impurities in the oil. At the same time, the impurities intercepted by the interception mechanism can be discharged and collected in a timely manner through the recycling mechanism to avoid large particulate impurities accumulating in the filter tube and causing blockage. After the large particulate impurities are filtered, the transformer oil that has undergone the first purification enters the oil filter through the oil return pipe for further deep purification and recycling treatment.

[0006] 2. This oil-immersed transformer, which facilitates the filtration of transformer oil, is equipped with an interception mechanism. When the guide plate rotates, it will synchronously drive the cleaning rod to rotate on the side of the screen plate through the rotating shaft. The contact rotation between the cleaning rod and the side of the screen plate forms a continuous cleaning, which promptly removes impurities attached to the surface of the screen plate, avoiding the problem of screen plate blockage caused by impurity accumulation in traditional filtration, and ensuring smooth flow of oil in the filter tube.

[0007] 3. This oil-immersed transformer, which facilitates the filtration of transformer oil, is equipped with a recovery mechanism. The extrusion cylinder rotates continuously and drives the impurities accumulated around the baffle to move synchronously. When the extrusion cylinder rotates, the scraper set on its inner side can scrape against the inner wall of the filter tube near the mesh plate to remove residual impurities attached to the inner wall, thus avoiding long-term accumulation of impurities that may cause pipe blockage or a decrease in filtration efficiency.

[0008] 4. This oil-immersed transformer, which facilitates the filtration of transformer oil, is equipped with heat dissipation components. The rotation of the fan blades will synchronously drive the cleaning mechanism to rotate on the side of the ventilation screen. The cleaning is achieved through contact with the side of the ventilation screen, preventing dust from accumulating on the surface of the ventilation screen and avoiding interference with heat exchange efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the oil-immersed transformer of the present invention, which facilitates the filtration of transformer oil; Figure 2 This is an axonometric view of the present invention; Figure 3 This is a schematic diagram of the structure of the oil drain valve of the present invention; Figure 4 This is a schematic diagram of the structure of the fuel tank component of the present invention; Figure 5 This is a schematic diagram of the filter mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the filter housing of the present invention; Figure 7 This is a schematic diagram of the interception mechanism of the present invention; Figure 8 This is a schematic diagram of the recycling mechanism of the present invention; Figure 9 This is a schematic diagram of the structure of the recyclable outer shell of the present invention; Figure 10This is a schematic diagram of the heat dissipation component of the present invention; Figure 11 This is a schematic diagram of the ventilation mesh structure of the present invention; Figure 12 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 13 This is a schematic diagram of the contact mechanism of the present invention.

[0010] In the diagram: 1. Main body; 2. Oil tank components; 21. Oil tank mechanism; 22. Oil return pipe; 23. Oil filter; 24. Connecting valve; 25. Filtration mechanism; 251. Filter housing; 252. Filter pipe; 253. Recovery mechanism; 2531. Recovery housing; 2532. Slide rod; 2533. Baffle; 2534. Cylindrical block; 2535. First spring; 2536. Return pipe; 2537. Water pump; 2538. Filter screen; 255. Clearance groove; 256. Interception mechanism; 2561. Mesh plate; 2562. Rotating shaft; 2563. Guide vane; 2564. Cleaning bar; 2565. Connecting shaft; 2566. Extrusion cylinder; 2567. Scraper; 3. Heat dissipation components; 31. Heat dissipation shell; 32. Bracket; 33. Drive component; 34. Fan blade; 35. Ventilation screen; 36. Cleaning mechanism; 361. Cleaning bar one; 362. Cleaning bar two; 37. Contact mechanism; 371. Contact block; 372. Round shaft; 373. Second spring; 4. Oil drain valve. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] Please see Figures 1-3 The present invention provides a technical solution: an oil-immersed transformer for easy filtering of transformer oil, comprising: The main body 1 has an oil drain valve 4 fixedly connected to its side and a heat dissipation component 3 fixedly connected to its bottom. The oil tank component 2 is used to filter the transformer oil. The side of the oil tank component 2 is fixedly connected to the side of the drain valve 4 away from the main body 1. Please see Figures 1-4The oil tank component 2 includes an oil tank mechanism 21. The bottom of the oil tank mechanism 21 is fixedly connected to the top of the main body 1. A return oil pipe 22 is fixedly connected to the side of the oil tank mechanism 21. An oil filter 23 is fixedly connected to the side of the return oil pipe 22. A filter mechanism 25 is fixedly connected to the end of the return oil pipe 22 away from the oil tank mechanism 21. A connecting valve 24 is fixedly connected to the other side of the filter mechanism 25. The other side of the connecting valve 24 is fixedly connected to the end of the drain valve 4 away from the main body 1. During operation, first open the drain valve 4 of the transformer body 1 to allow the oil to flow into the connecting valve 24; at the same time, start the oil filter 23 to introduce the transformer oil into the filtration mechanism 25 for initial filtration, intercepting large particulate impurities in the oil. Under the continuous drive of the oil filter 23, the oil that has undergone preliminary filtration enters the oil filter 23 body 1 to further remove fine impurities, moisture, gas and aging products, fully restoring the insulation and cooling performance of the transformer oil. The purified transformer oil is continuously transported to the oil tank mechanism 21 through the return oil pipe 22, forming convection with the original oil in the tank, accelerating the uniform improvement of the overall oil quality. During the entire filtration process, the filtered oil flows directly back to the circulation oil circuit of the oil tank mechanism 21, realizing online purification operation without shutting down the transformer. Please see Figures 1-6 The filter mechanism 25 includes a filter housing 251. A filter tube 252 is fixedly connected to the inner side of the filter housing 251. One end of the filter tube 252 is fixedly connected to the oil return pipe 22, and the other end of the filter tube 252 is fixedly connected to the oil drain valve 4. A recovery mechanism 253 is fixedly connected to the side of the filter tube 252. An interception mechanism 256 is fixedly connected to the inner side of the recovery mechanism 253. A clearance groove 255 is provided on the side of the filter tube 252. When the transformer oil enters the filter pipe 252 through the drain valve 4, it flows through the interception mechanism 256. The interception mechanism 256 will intercept and filter large particulate impurities in the oil. At the same time, the impurities intercepted by the interception mechanism 256 can be discharged and collected in time through the recovery mechanism 253 to avoid large particulate impurities accumulating in the filter pipe 252 and causing blockage. After the large particulate impurities are filtered, the transformer oil that has undergone the first purification enters the oil filter 23 through the return oil pipe 22 for further deep purification and recovery treatment. Please see Figures 1-7The interception mechanism 256 includes a mesh plate 2561. The side of the mesh plate 2561 is fixedly connected to the inside of the filter tube 252. A guide vane 2563 is rotatably connected to the side of the mesh plate 2561. A rotating shaft 2562 is fixedly connected to the side of the guide vane 2563. The side of the rotating shaft 2562 is rotatably connected to the inside of the mesh plate 2561. Cleaning rods 2564 are fixedly connected to both sides of the rotating shaft 2562 away from the guide vane 2563. The side of the cleaning rod 2564 is in contact with the side of the mesh plate 2561. A connecting shaft 2565 is fixedly connected to the side of the rotating shaft 2562 away from the cleaning rod 2564. A squeezing cylinder 2566 is fixedly connected to the other end of the connecting shaft 2565. A scraper 2567 is fixedly connected to the inside of the squeezing cylinder 2566. During the process of the oil filter 23 driving the transformer oil to continuously flow through the filter tube 252, the mesh plate 2561 first filters and intercepts large particulate impurities in the oil, initially purifying the oil. At this time, the flowing transformer oil will drive the guide plate to rotate on the mesh plate 2561 through the impact, and realize the self-sufficiency of clean power by using the kinetic energy of the oil. When the guide plate rotates, it will synchronously drive the cleaning rod 2564 to rotate on the side of the screen plate 2561 through the rotating shaft 2562. The contact rotation between the cleaning rod 2564 and the side of the screen plate 2561 forms continuous cleaning, which removes the impurities attached to the surface of the screen plate 2561 in time, avoids the problem of screen plate 2561 clogging caused by impurity accumulation in traditional filtration, and ensures smooth oil flow in the filter tube 252. At the same time, when the rotating shaft 2562 rotates, it will also drive the extrusion cylinder 2566 to rotate through the connecting shaft 2565. The extrusion cylinder 2566 will roll the impurities gathered around the baffle 2533 into the inside. Then, through contact and extrusion with the recycling mechanism 253, the intercepted impurities will be sent to the recycling mechanism 253 for centralized collection, thereby realizing the automatic separation and collection of impurities. Please see Figures 1-9The recycling mechanism 253 includes a recycling housing 2531. The inner side of the recycling housing 2531 is fixedly connected to the side of the filter tube 252. A slide rod 2532 is slidably connected to the inner side of the recycling housing 2531. A baffle 2533 is fixedly connected to the side of the slide rod 2532. The sides of the baffle 2533 are slidably connected to the clearance groove 255 and the inner side of the recycling housing 2531. A first spring 2535 is sleeved on the slide rod 2532. The top of the first spring 2535 is fixedly connected to the inner side of the recycling housing 2531. The bottom of the spring 2535 is fixedly connected to the top of the baffle 2533. A cylindrical block 2534 is fixedly connected to the bottom of the baffle 2533. A return pipe 2536 is fixedly connected to the bottom of the recycling shell 2531. The other end of the return pipe 2536 is fixedly connected to the inside of the filter pipe 252. A one-way valve is fixedly connected to the inside of the end of the return pipe 2536 near the filter pipe 252. A water pump 2537 is fixedly connected to the side of the return pipe 2536. Filter screens 2538 are fixedly connected to both sides of the inner cavity of the recycling shell 2531. During the process of the oil filter 23 driving the transformer oil to continuously flow through the filter tube 252, the oil is driven by the guide vane 2563 to drive the extrusion cylinder 2566 to rotate, forming an automated power transmission. When the extrusion cylinder 2566 rotates to contact the cylindrical block 2534, the cylindrical block 2534 is squeezed and drives the slide rod 2532 to move upward, simultaneously causing the baffle 2533 to disengage from the relief groove 255 and enter the inner side of the recycling shell 2531, while squeezing the first spring 2535 sleeved on the slide rod 2532. Meanwhile, the extrusion cylinder 2566 rotates continuously and drives the impurities gathered around the baffle 2533 to move synchronously. When the scraper 2567 on its inner side rotates with the extrusion cylinder 2566, it can scrape the inner wall of the filter tube 252 close to the mesh plate 2561 to remove the residual impurities attached to the inner wall, and avoid the long-term accumulation of impurities causing pipe blockage or reduced filtration efficiency. When the side of the extrusion cylinder 2566 is continuously squeezed by the cylindrical block 2534, and the baffle 2533 is completely entered into the recovery shell 2531, the extrusion cylinder 2566 can smoothly send the impurities and a small amount of transformer oil into the recovery shell 2531 to achieve directional collection of impurities and prevent impurities from flowing back and contaminating the oil. When impurities and a small amount of oil flow downwards into the recycling shell 2531, the filter screen 2538 separates them. The impurities are trapped and collected, while the transformer oil passing through the filter screen 2538 enters the return pipe 2536. At this time, the water pump 2537 is turned on, and the oil is sent back to the filter pipe 252 through the one-way valve at the other end of the return pipe 2536. The one-way valve prevents the oil from flowing backwards, ensuring that the recycled oil returns to the filtration cycle. This avoids oil waste, reduces environmental pollution, and realizes closed-loop recycling of oil. Please see Figures 1-11The present invention provides a technical solution: the heat dissipation component 3 includes a heat dissipation shell 31, the side of the heat dissipation shell 31 is fixedly connected to the inner side of the main body 1, a bracket 32 ​​is fixedly connected to the inner side of the heat dissipation shell 31, a driving component 33 is fixedly connected to the top of the bracket 32, a fan blade 34 is rotatably connected to the bottom of the bracket 32, the output end of the driving component 33 is fixedly connected to the inner side of the fan blade 34, a ventilation screen 35 is fixedly connected to the side of the heat dissipation shell 31 away from the bracket 32, a cleaning mechanism 36 is rotatably connected to both sides of the ventilation screen 35, and a contact mechanism 37 is fixedly connected to both sides of the ventilation screen 35. When the main body 1 is running, after the drive unit 33 is turned on, its output end will drive the fan blade 34 to rotate on the bracket 32. During the rotation of the fan blade 34, heat exchange and exhaust can be carried out on the inside of the main body 1, and the internal heat can be dissipated in time to avoid the main body 1 from being affected by excessive temperature. At the same time, the rotation of the fan blade 34 will synchronously drive the cleaning mechanism 36 to rotate on the side of the ventilation screen 35. The cleaning is achieved by contacting the side of the ventilation screen 35, preventing dust from accumulating on the surface of the ventilation screen 35 and avoiding interference with heat exchange efficiency. In addition, the ventilation screen 35 is provided with contact mechanisms 37 on both sides. When the cleaning mechanism 36 rotates to clean the ventilation screen 35, it will come into contact with the contact mechanism 37 and squeeze it. With the help of this squeezing action, the dust and other dirt attached to the cleaning mechanism 36 itself can be cleaned. Please see Figures 1-12 The cleaning mechanism 36 includes a second cleaning rod 362. The top of the second cleaning rod 362 is fixedly connected to the middle of the fan blade 34. The bottom of the second cleaning rod 362 is fixedly connected to a first cleaning rod 361. The first cleaning rod 361 and the second cleaning rod 362 are arranged in a cross shape on both sides of the ventilation screen 35. The sides of the first cleaning rod 361 and the second cleaning rod 362 are in contact with both sides of the screen plate 2561. When the output end of the drive unit 33 drives the fan blade 34 to rotate on the bracket 32, the fan blade 34 will simultaneously drive the cleaning rod 1 361 and the cleaning rod 2 362 to rotate in contact on both sides of the ventilation screen 35. The cleaning rod 1 361 and the cleaning rod 2 362 are arranged in a cross structure on the upper and lower sides of the ventilation screen 35 to ensure that the sides of the ventilation screen 35 are cleaned without dead angles during the rotation process. Remove dust adhering to the surface of the ventilation screen 35 to prevent dust accumulation and blockage of the heat exchange channel, ensuring that the heat dissipation efficiency of the ventilation screen 35 is not disturbed, thereby maintaining the stable heat dissipation effect of the main body 1 equipment. Please see Figures 1-13The contact mechanism 37 includes two contact blocks 371. The side of the bottom contact block 371 is fixedly connected to the inner side of the mesh plate 2561. The top of the bottom contact block 371 is slidably connected to a round shaft 372. The top of the round shaft 372 is fixedly connected to the bottom of the top contact block 371. A second spring 373 is sleeved on the round shaft 372. Both ends of the second spring 373 are fixedly connected to the two contact blocks 371. When cleaning rod 361 and cleaning rod 362 contact and rotate to clean the side of the ventilation screen 35, they will contact and rotate with the contact blocks 371 on both sides of the ventilation screen 35. The contact blocks 371 are evenly provided with transverse grooves on their sides. While cleaning rod 361 and cleaning rod 362 are in contact with the ventilation screen 35, the transverse grooves can squeeze and scrape off the dust accumulated on cleaning rod 361 and cleaning rod 362, which prevents dust from accumulating on the cleaning rods and prevents the cleaning effect of the ventilation screen 35 from being reduced due to dust accumulation on the cleaning rods, thus ensuring that the cleaning work is continuously effective. Meanwhile, when the contact force between the upper contact block 371 and the second cleaning rod 362 exceeds the tensile force of the second spring 373, the spring will drive the upper contact block 371 to slide inside the ventilation screen 35. Through elastic buffering, the excessive contact pressure is avoided from causing squeezing damage to the second cleaning rod 362, thus ensuring the service life and stable operation of the cleaning components.

[0013] Specific workflow: First, by opening the drain valve 4, the transformer oil in the transformer body 1 is drained and introduced into the oil tank component 2. The oil tank component 2 then performs a filtration operation on the drained oil to remove impurities, moisture and other contaminants, thus purifying the transformer oil. The purified transformer oil is then reinjected into the body 1 through the circulation interface of the oil tank component 2. During the reinjection process, it forms convection with the original oil in the tank, accelerating the uniform improvement of the overall oil quality. In addition, during the operation of the transformer body 1, the heat dissipation component 3 continuously plays a role in cooling the interior of the body 1, ensuring that the equipment operates stably at a suitable temperature.

[0014] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An oil-immersed transformer that facilitates the filtration of transformer oil, characterized in that, include: The main body (1) has an oil drain valve (4) fixedly connected to its side and a heat dissipation component (3) fixedly connected to its bottom. The oil tank component (2) is used to filter the transformer oil. The side of the oil tank component (2) is fixedly connected to the side of the drain valve (4) away from the main body (1). The oil tank component (2) includes an oil tank mechanism (21). The bottom of the oil tank mechanism (21) is fixedly connected to the top of the main body (1). A return oil pipe (22) is fixedly connected to the side of the oil tank mechanism (21). An oil filter (23) is fixedly connected to the side of the return oil pipe (22). A filter mechanism (25) is fixedly connected to one end of the return oil pipe (22) away from the oil tank mechanism (21). A connecting valve (24) is fixedly connected to the other side of the filter mechanism (25). The other side of the connecting valve (24) is fixedly connected to the end of the drain valve (4) away from the main body (1).

2. The oil-immersed transformer for easy filtration of transformer oil according to claim 1, characterized in that: The filtration mechanism (25) includes a filter housing (251), a filter tube (252) is fixedly connected to the inner side of the filter housing (251), one end of the filter tube (252) is fixedly connected to the return oil pipe (22), the other end of the filter tube (252) is fixedly connected to the drain valve (4), a recovery mechanism (253) is fixedly connected to the side of the filter tube (252), an interception mechanism (256) is fixedly connected to the inner side of the recovery mechanism (253), and a clearance groove (255) is provided on the side of the filter tube (252).

3. An oil-immersed transformer for easy filtration of transformer oil according to claim 2, characterized in that: The interception mechanism (256) includes a mesh plate (2561), a guide vane (2563) is rotatably connected to the side of the mesh plate (2561), a rotating shaft (2562) is fixedly connected to the side of the guide vane (2563), a cleaning rod (2564) is fixedly connected to both sides of the rotating shaft (2562) away from the guide vane (2563), a connecting shaft (2565) is fixedly connected to the side of the rotating shaft (2562) away from the cleaning rod (2564), a squeezing cylinder (2566) is fixedly connected to the other end of the connecting shaft (2565), and a scraper (2567) is fixedly connected to the inner side of the squeezing cylinder (2566).

4. An oil-immersed transformer for easy filtration of transformer oil according to claim 3, characterized in that: The side of the mesh plate (2561) is fixedly connected to the inside of the filter tube (252), the side of the rotating shaft (2562) is rotatably connected to the inside of the mesh plate (2561), and the side of the cleaning rod (2564) is in contact with the side of the mesh plate (2561).

5. An oil-immersed transformer for easy filtration of transformer oil according to claim 2, characterized in that: The recycling mechanism (253) includes a recycling shell (2531), the inner side of which is fixedly connected to the side of the filter tube (252). A slide rod (2532) is slidably connected to the inner side of the recycling shell (2531), and a baffle (2533) is fixedly connected to the side of the slide rod (2532). A first spring (2535) is sleeved on the slide rod (2532), and a cylindrical block (2535) is fixedly connected to the bottom of the baffle (2533). 34) A return pipe (2536) is fixedly connected to the bottom of the recycling shell (2531). The other end of the return pipe (2536) is fixedly connected to the inner side of the filter pipe (252). A one-way valve is fixedly connected to the inner side of the end of the return pipe (2536) near the filter pipe (252). A water pump (2537) is fixedly connected to the side of the return pipe (2536). Filter screens (2538) are fixedly connected to both sides of the inner cavity of the recycling shell (2531).

6. An oil-immersed transformer for easy filtration of transformer oil according to claim 5, characterized in that: The sides of the baffle (2533) are slidably connected to the relief groove (255) and the inner side of the recycling shell (2531). The top of the first spring (2535) is fixedly connected to the inner side of the recycling shell (2531), and the bottom of the first spring (2535) is fixedly connected to the top of the baffle (2533).

7. An oil-immersed transformer for easy filtration of transformer oil according to claim 1, characterized in that: The heat dissipation component (3) includes a heat dissipation shell (31), the side of which is fixedly connected to the inner side of the main body (1), a bracket (32) is fixedly connected to the inner side of the heat dissipation shell (31), a drive component (33) is fixedly connected to the top of the bracket (32), a fan blade (34) is rotatably connected to the bottom of the bracket (32), the output end of the drive component (33) is fixedly connected to the inner side of the fan blade (34), a ventilation screen (35) is fixedly connected to the side of the heat dissipation shell (31) away from the bracket (32), a cleaning mechanism (36) is rotatably connected to both sides of the ventilation screen (35), and a contact mechanism (37) is fixedly connected to both sides of the ventilation screen (35).

8. An oil-immersed transformer for easy filtration of transformer oil according to claim 7, characterized in that: The cleaning mechanism (36) includes a second cleaning rod (362), the top of which is fixedly connected to the middle of the fan blade (34), and a first cleaning rod (361) is fixedly connected to the bottom of the second cleaning rod (362). The first cleaning rod (361) and the second cleaning rod (362) are arranged in a cross shape on both sides of the ventilation screen (35). The sides of the first cleaning rod (361) and the second cleaning rod (362) are in contact with both sides of the screen plate (2561).

9. An oil-immersed transformer for easy filtering of transformer oil according to claim 8, characterized in that: The contact mechanism (37) includes two contact blocks (371). The side of the bottom contact block (371) is fixedly connected to the inner side of the mesh plate (2561). The top of the bottom contact block (371) is slidably connected to a round shaft (372). The top of the round shaft (372) is fixedly connected to the bottom of the top contact block (371). A second spring (373) is sleeved on the round shaft (372). Both ends of the second spring (373) are fixedly connected to the two contact blocks (371).

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