A power grid transformer protection device

Abstract

The present invention discloses a power grid transformer protection device, which belongs to the technical field of power equipment. The device comprises a transformer body, wherein the inside and outside of the transformer body are jointly provided with a dehumidifying component, and the dehumidifying component comprises a fixed cylinder fixedly connected to the four corners of the upper side of the transformer body, an electric push rod is fixedly connected to the inside of the fixed cylinder, and the telescopic ends of the front and rear corresponding electric push rods are jointly fixedly connected to a connecting frame, and a collecting frame is fixedly connected to the lower side of the connecting frame. The outer surface of the collecting frame is provided with a ventilation groove. The present invention stores a silica gel desiccant bag through the provided collecting frame and absorbs water molecules through the ventilation groove. Since the silica gel desiccant bag in the collecting frame can absorb the moisture accumulated in the transformer body, the evaporation of lubricant and the accumulation of water molecules generated by the excessive temperature difference between the inside and outside of the transformer body are avoided, thereby preventing the water molecules from condensing into water droplets and affecting the life and stability of metal parts.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and more particularly to a power grid transformer protection device. Background Art

[0002] A power transformer is a static electrical device used to convert a certain value of AC voltage (current) into another or several different values ​​of voltage (current) with the same frequency. The power transformer is mainly composed of iron core, winding, oil tank, insulation, tap changer, protection device and other components. According to different uses and structures, power transformers can be divided into many types, such as oil-immersed transformers, dry-type transformers, autotransformers, three-phase transformers, etc.

[0003] As the core equipment in the substation, the transformer is easily affected by various factors during operation. In order to ensure the safe and stable operation of the transformer, it is necessary to properly configure the protection and set up relay protection, overexcitation protection, differential protection and other equipment. At the same time, the operating principles of the transformer must be clarified to avoid failures and problems caused by human error. Among them, cooling fans are one of the transformer protection devices. They are usually used to exhaust hot air from the heat exchanger and blow it from the bottom and outside to the coil of the dry-type transformer to improve the heat dissipation effect and prevent the internal parts of the transformer from being damaged due to excessive temperature.

[0004] In the prior art, since the cooling fan usually lubricates the bearings and transmission components with lubricating oil during use, the temperature inside the transformer will rise due to the high voltage load and external sunlight. The temperature rise will cause the lubricating fluid to evaporate faster, causing the evaporated water to accumulate inside the transformer, thereby affecting the life and stability of the metal parts. Summary of the Invention

[0005] In view of the problems existing in the prior art, the present invention aims to provide a power grid transformer protection device.

[0006] To solve the above problems, the present invention adopts the following technical solution, which can adsorb water molecules generated by lubricant evaporation and excessive temperature difference between the inside and outside of the transformer body, thereby preventing the water molecules from condensing into water droplets and affecting the life and stability of metal parts.

[0007] A power grid transformer protection device includes a transformer body and a cooling fan arranged on the lower side of the transformer body, wherein a dehumidification component is provided on the inside and outside of the transformer body;

[0008] The dehumidification component includes a fixed cylinder fixedly connected to the four corners of the upper side of the transformer body, an electric push rod fixedly connected to the interior of the fixed cylinder, and a connecting frame fixedly connected to the telescopic ends of the electric push rods at the front and rear ends. A collecting frame is fixedly connected to the lower side of the connecting frame, and a feed port is provided on the side away from the two collecting frames. A ventilation groove is provided on the outer surface of the collecting frame. Guide frames are fixedly connected to the left and right sides of the interior of the transformer body, and the collecting frame is slidably connected to the inside of the guide frame after moving upward.

[0009] Furthermore, the shape of the collecting frame is adapted to the shape of the interior of the guide frame, and the collecting frame passes through the inner upper side of the transformer body.

[0010] Furthermore, a monitoring component is provided on both the inner and outer sides of the transformer body, and the monitoring component includes a guide slope slidably connected to the lower side of the inner portion of the collection frame.

[0011] Furthermore, a pressure sensor is provided on the lower side of the interior of the collection frame, the lower side of the guide slope is in squeeze contact with the upper side of the pressure sensor, the inclined surface of the guide slope is arranged in a linear array and is rollingly connected to a first roller, and a warning piece is provided on the upper side of the transformer body, and the pressure sensor and the warning piece are both electrically connected to an external power supply.

[0012] Furthermore, a discharge assembly is provided on both the inner and outer sides of the transformer body, and the discharge assembly includes a discharge outlet opened on a side of the collection frame close to the feed inlet.

[0013] Furthermore, a notch is provided at the center of the guide frame near the discharge outlet, and the discharge outlet is connected to the notch after moving upward, and a discharge trough is provided at an angle on the left and right sides of the transformer body, and the notch is connected to the discharge trough, and a first movable groove is provided on the inner surface of the notch near the guide slope, and a second movable groove is provided on the other side inside the first movable groove, and a fixing bar is fixedly connected to the side of the collection frame near the notch, and a first magnetic block is fixedly connected to the other side of the fixing bar, and the fixing bar and the first magnetic block are both slidably connected in the first movable groove after moving upward, and a metal baffle is slidably connected to the inside of the second movable groove, and the first magnetic block is magnetically adsorbed to the metal baffle.

[0014] Furthermore, a protective component is provided on the upper side of the transformer body, and the protective component includes a hinge seat fixedly connected to the outer sides of the left and right corresponding fixing cylinders.

[0015] Furthermore, the front and rear sides of the connecting frame are fixedly connected with a pushing block, the outer side of the hinge seat is fixedly connected with a cover plate, and the front and rear corresponding opposite surfaces of the cover plate are squeezed and contacted, and the left and right sides of the front and rear corresponding opposite surfaces of the cover plate are fixedly connected with a second magnetic block, and the front and rear corresponding second magnetic blocks are magnetically adsorbed, and the upper side of the cover plate is arranged in a linear array and is rollingly connected to a second roller, and the pushing block moves upward and slides into contact with the lower side of the cover plate.

[0016] Furthermore, a dust blowing assembly is provided on the upper side of the transformer body, and the dust blowing assembly includes an output pipe fixedly connected to the upper side of the transformer body, and the output pipe is communicated with the interior of the transformer body.

[0017] Furthermore, a valve is provided at the upper end of the output pipe, and hoses are provided on the front and rear sides of the valve. The hose is connected to the valve, and the other end of the hose extends to the lower side of the cover plate. A guide groove is provided inside the cover plate, and the hose is connected to the guide groove. The lower side of the second roller is located inside the guide groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention stores the silica gel desiccant bag through the provided collection frame and absorbs water molecules through the ventilation slots. Since the silica gel desiccant bag inside the collection frame can absorb the moisture accumulated inside the transformer body, it avoids the evaporation of lubricant and the accumulation of water molecules generated by the large temperature difference between the inside and outside of the transformer body, thereby preventing the water molecules from condensing into water droplets and affecting the life and stability of metal parts.

[0020] (2) The present invention guides the silica gel desiccant bag by setting a guide slope and monitors the silica gel desiccant bag in real time. After the silica gel desiccant bag reaches the top of the guide slope, the first roller guides the silica gel desiccant bag so that the silica gel desiccant bag maintains the temperature after reaching the specified position. At the same time, the silica gel desiccant bag is monitored in real time to see if it fails, and an alarm is issued when the silica gel desiccant bag fails, thereby effectively ensuring the silica gel desiccant bag's adsorption effect on moisture inside the transformer body.

[0021] (3) The present invention shields the gap and the discharge chute by setting a metal baffle. When the metal baffle moves upward, the silica gel desiccant package is discharged, and then the metal baffle returns to its original position. When the silica gel desiccant package needs to be added, the collection frame that moves upward will correspond to the gap due to the discharge port, so that the invalid silica gel desiccant package will be discharged before the new silica gel desiccant package enters the collection frame, and the new silica gel desiccant package is prevented from being discharged, thereby once again ensuring the silica gel desiccant package's adsorption effect on the moisture inside the transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the present invention;

[0024] Figure 3 It is a schematic diagram of the front cross-sectional structure of the transformer body of the present invention;

[0025] Figure 4 It is a schematic diagram of the front cross-sectional structure of the guide frame of the present invention;

[0026] Figure 5 It is a structural diagram of the collection frame of the present invention;

[0027] Figure 6 It is a schematic diagram of the front cross-sectional structure of the collection frame of the present invention;

[0028] Figure 7 Schematic diagram of the front cross-sectional structure of the first movable groove of the present invention;

[0029] Figure 8 It is a schematic diagram of the left side cross-sectional structure of the cover plate of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Transformer body; 11. Cooling fan; 2. Dehumidification component; 21. Fixed cylinder; 22. Electric push rod; 23. Connecting frame; 24. Collecting frame; 25. Feed inlet; 26. Ventilation slot; 27. Guide frame; 28. Monitoring component; 281. Guide slope; 282. First roller; 283. Pressure sensor; 284. Warning member; 29. ​​Discharge component; 291. Discharge port; 292. Notch; 293. Feed chute; 294. First moving chute; 295. Second moving chute; 296. Metal baffle; 297. Fixed strip; 298. First magnetic block; 3. Protective component; 31. Hinge seat; 32. Push block; 33. Cover plate; 34. Second magnetic block; 35. Second roller; 36. Dust blowing component; 361. Output pipe; 362. Valve; 363. Hose; 364. Guide slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 8A power grid transformer protection device includes a transformer body 1 and a cooling fan 11 arranged on the lower side of the transformer body 1, and a dehumidification component 2 is provided inside and outside the transformer body 1;

[0034] The dehumidification component 2 includes a fixed cylinder 21 fixedly connected to the four corners of the upper side of the transformer body 1, and an electric push rod 22 is fixedly connected to the inside of the fixed cylinder 21. The telescopic ends of the front and rear corresponding electric push rods 22 are commonly fixedly connected to a connecting frame 23, and the lower side of the connecting frame 23 is fixedly connected to a collecting frame 24. The two collecting frames 24 are provided with a feed port 25 on the side away from each other, and a ventilation groove 26 is provided on the outer surface of the collecting frame 24. The left and right sides of the inside of the transformer body 1 are fixedly connected with a guide frame 27. After the collecting frame 24 moves upward, it slides and is connected to the inside of the guide frame 27.

[0035] The shape of the collecting frame 24 matches the shape of the interior of the guide frame 27 , and the collecting frame 24 passes through the upper inner side of the transformer body 1 .

[0036] By adopting the above technical solution, during the operation of the transformer body 1, the cooling fan 11 inside the transformer body 1 is always running. In order to ensure the operating efficiency of the cooling fan 11, lubricant is usually added to the driving part of the cooling fan 11. As the temperature inside the transformer body 1 gradually rises, the moisture generated by the evaporation of the lubricant will be absorbed by the silica gel desiccant bag filled in the collection frame 24. When the silica gel desiccant bag is filled, the electric push rod 22 inside the fixed cylinder 21 is started to lift the connecting frame 23, so that the collection frame 24 fixed to the connecting frame 23 gradually moves upward. As the collection frame 24 moves inside the guide frame 27, the collection frame 24 is lifted. Slide, when the feed port 25 on the side of the collecting frame 24 is completely exposed from the inside of the guide frame 27, the staff can pour the silica gel desiccant bag into the collecting frame 24 through the feed port 25, and the moisture inside the transformer body 1 will enter the collecting frame 24 through the ventilation slot 26 and be finally absorbed by the silica gel desiccant bag. Since the silica gel desiccant bag inside the collecting frame 24 can absorb the moisture accumulated inside the transformer body 1, it avoids the evaporation of lubricant and the accumulation of water molecules generated by the large temperature difference between the inside and outside of the transformer body 1, thereby preventing the water molecules from condensing into water droplets and affecting the life and stability of metal parts.

[0037] like Figure 4 、 Figure 6 and Figure 7 As shown, a monitoring assembly 28 is provided on both the inner and outer sides of the transformer body 1 . The monitoring assembly 28 includes a guide slope 281 slidably connected to the lower side of the inner portion of the collecting frame 24 .

[0038] A pressure sensor 283 is provided on the lower side of the inner part of the collection frame 24, and the lower side of the guide slope 281 is in squeeze contact with the upper side of the pressure sensor 283. The inclined surface of the guide slope 281 is arranged in a linear array and is rollingly connected to the first roller 282. A warning member 284 is provided on the upper side of the transformer body 1. The pressure sensor 283 and the warning member 284 are both electrically connected to an external power supply.

[0039] By adopting the above technical solution, as the silica gel desiccant bag is fed into the collection frame 24 and falls on the guide slope 281 inside the collection frame 24, after the silica gel desiccant bag reaches the inclined surface above the guide slope 281, the first roller 282 of the guide slope 281 that can roll on the inclined surface guides the silica gel desiccant bag, and then the silica gel desiccant bag slides to the lowest point of the slope of the guide slope 281. As the silica gel desiccant bag absorbs the moisture inside the transformer body 1, the weight of the silica gel desiccant bag itself will gradually increase. At the same time, the pressure exerted by the silica gel desiccant bag and the guide slope 281 on the pressure sensor 283 below the guide slope 281 It will also gradually increase. When the pressure on the pressure sensor 283 stops rising within a few days, it indicates that the silica gel desiccant bag has failed. The pressure sensor 283 will send a signal to the controller carried inside the warning member 284, and finally the warning member 284 will be operated through the controller. After the silica gel desiccant bag reaches the top of the guide slope 281, the first roller 282 will guide the silica gel desiccant bag, so that the silica gel desiccant bag remains stable after reaching the designated position. At the same time, it monitors whether the silica gel desiccant bag has failed in real time, and issues a warning after the silica gel desiccant bag fails, effectively ensuring the silica gel desiccant bag's adsorption effect on moisture inside the transformer body 1.

[0040] like Figures 1 to 4 and Figures 5 to 7 As shown, a discharge assembly 29 is provided on both the inner and outer sides of the transformer body 1 . The discharge assembly 29 includes a discharge port 291 opened on a side of the collecting frame 24 close to the feed port 25 .

[0041] A notch 292 is provided at the center of the guide frame 27 near the discharge outlet 291. After the discharge outlet 291 moves upward, it is connected to the notch 292. A discharge trough 293 is provided on the left and right sides of the transformer body 1. The notch 292 is connected to the discharge trough 293. A first movable groove 294 is provided on the inner surface of the notch 292 near the guide slope 281. A second movable groove 295 is provided on the other side of the first movable groove 294. A fixing bar 297 is fixedly connected to the side of the collection frame 24 near the notch 292. A first magnetic block 298 is fixedly connected to the other side of the fixing bar 297. After the fixing bar 297 and the first magnetic block 298 move upward, they are both slidably connected in the first movable groove 294. A metal baffle 296 is slidably connected to the inside of the second movable groove 295. The first magnetic block 298 is magnetically adsorbed to the metal baffle 296.

[0042] By adopting the above technical solution, when the warning member 284 sounds an alarm, the staff starts the electric push rod 22 to lift the connecting frame 23 upward. At this time, the collecting frame 24 fixed under the connecting frame 23 will slide inside the guide frame 27. When the discharge port 291 on the side of the collecting frame 24 corresponds to the notch 292 on the side of the guide frame 27, the silica gel desiccant bag will enter the notch 292 from the discharge port 291, but will be blocked by the metal baffle 296. While the collecting frame 24 moves upward, the fixing bar 297 provided on the side of the collecting frame 24 with the discharge port 291 will drive the first magnetic block 298 to move upward in the first moving groove 294, and the first magnetic block 298 will adsorb the metal baffle 296, so that the metal baffle 296 follows the first magnetic block 298 to slide in the second moving groove 295. During the upward movement of the metal baffle 296 in the second moving groove 295, the discharge chute 293 opened on the side of the transformer body 1 is connected with the notch 292, and the silica gel desiccant bag is lost. After the metal baffle 296 is removed from the obstruction, the silica gel desiccant bag will slide out of the discharge chute 293. When the metal baffle 296 moves to the top of the second movable groove, the fixing bar 297 will continue to move upward inside the first movable groove 294. As the fixing bar 297 continues to move upward, the adsorption effect of the first magnetic block 298 on the metal baffle 296 gradually decreases, causing the metal plate to begin to fall according to its own weight and return to its original position. After the silica gel desiccant bag is fed into the interior of the collection frame 24 through the feed port 25, the silica gel desiccant bag cannot enter the discharge chute 293 from the gap 292, and finally falls above the guide slope 281. When the silica gel desiccant bag needs to be added, the upward moving collection frame 24 will discharge the expired silica gel desiccant bag before the new silica gel desiccant bag enters the collection frame 24, and prevent the new silica gel desiccant bag from being discharged, thereby once again ensuring the silica gel desiccant bag's adsorption effect on moisture inside the transformer body 1.

[0043] like Figures 1 to 6 and Figure 8 As shown, a protective component 3 is provided on the upper side of the transformer body 1 , and the protective component 3 includes a hinge seat 31 fixedly connected to the outer sides of the left and right corresponding fixing cylinders 21 .

[0044] The front and rear sides of the connecting frame 23 are fixedly connected with a pushing block 32, and the outer side of the hinge seat 31 is fixedly connected with a cover plate 33. The opposite surfaces of the front and rear corresponding cover plates 33 are squeezed and contacted, and the left and right sides of the opposite surfaces of the front and rear corresponding cover plates 33 are fixedly connected with a second magnetic block 34. The front and rear corresponding second magnetic blocks 34 are magnetically attracted to each other, and the upper side of the cover plate 33 is arranged in a linear array and is rollingly connected to the second roller 35. After the pushing block 32 moves upward, it slides and contacts with the lower side of the cover plate 33.

[0045] When the two covers 33 are in a horizontal state, impurities originally on the top of the covers 33 will fall from above the covers 33. After the two covers 33 are merged, if a bird stays on the covers 33, the second roller 35 above the covers 33 will start to roll after the bird stands. Before the covers 33 are merged, the impurities originally on the top of the covers 33 can be shaken off to ensure the cleanliness of the surface of the covers 33. The birds will not be able to stand normally due to the free rotation of the second roller 35, thereby achieving the expulsion of the birds and effectively preventing the birds from leaving feces after standing on the covers 33, thereby preventing the bird feces from corroding the surface of the transformer body 1.

[0046] like Figure 3 、 Figure 4 、 Figure 6 and Figure 8 As shown, a dust blowing assembly 36 is provided on the upper side of the transformer body 1 . The dust blowing assembly 36 includes an output pipe 361 fixedly connected to the upper side of the transformer body 1 . The output pipe 361 is communicated with the interior of the transformer body 1 .

[0047] A valve 362 is provided at the upper end of the output pipe 361, and hoses 363 are provided on the front and rear sides of the valve 362. The hose 363 is connected to the valve 362, and the other end of the hose 363 extends to the lower side of the cover plate 33. A guide groove 364 is provided inside the cover plate 33, and the hose 363 is connected to the guide groove 364. The lower side of the second roller 35 is located inside the guide groove 364.

[0048] By adopting the above technical solution, as the cooling fan 11 inside the transformer body 1 is always running, the airflow generated will enter the valve 362 through the output pipe 361, and the hoses 363 on the front and rear sides of the valve 362 will respectively extend to the lower side of the corresponding cover plate 33 and communicate with the guide groove 364 inside the cover plate 33. As the valve 362 sends the airflow into the guide groove 364 through the hose 363, part of the second roller 35 is inside the guide groove 364. After the airflow enters the guide groove 364, it will be discharged from the gap between the second roller 35 and the cover plate 33. When the airflow is discharged from the gap between the second roller 35 and the cover plate 33, the dust accumulated above the cover plate 33 will be blown away. When the bird is about to stand, the blown airflow will also appear to drive the bird away, thereby achieving the effect of driving away the bird, further improving the bird driving effect.

[0049] Working principle: When the transformer body 1 is in operation, the temperature inside it gradually rises, and the moisture generated by the evaporation of the lubricant will be absorbed by the silica gel desiccant bag filled in the collection frame 24. When filling the silica gel desiccant bag, start the electric push rod 22 inside the fixed cylinder 21 to lift the connecting frame 23 and drive the collection frame 24 to move gradually upward. After the feed port 25 is completely exposed from the inside of the guide frame 27, the staff can pour the silica gel desiccant bag into the collection frame 24 through the feed port 25. As the silica gel desiccant bag falls above the guide slope 281 inside the collection frame 24, the first roller 282 on the inclined surface of the guide slope 281 guides the silica gel desiccant bag and slides to the lowest point of the slope of the guide slope 281, and the silica gel desiccant bag absorbs the moisture. After that, the weight of the silica gel desiccant bag itself will gradually increase. At the same time, the pressure caused by the pressure sensor 283 under the guide slope 281 will also gradually increase. When the pressure on the pressure sensor 283 no longer rises within a few days, it means that the silica gel desiccant bag has failed. The pressure sensor 283 will send a signal to the controller carried inside the warning member 284, and finally the warning member 284 of the controller will be operated. When the warning member 284 issues an alarm, the staff will start the electric push rod 22 to lift the connecting frame 23 upward. At this time, the collection frame 24 will slide upward inside the guide frame 27. When the discharge port 291 on the side of the collection frame 24 corresponds to the notch 292 on the side of the guide frame 27, the silica gel desiccant bag will enter the notch 292 from the discharge port 291, but will be blocked by the metal The metal baffle 296 is blocked, and when the collecting frame 24 moves upward, the fixing bar 297 provided on the side of the collecting frame 24 with the discharge outlet 291 will drive the first magnetic block 298 to move upward in the first moving groove 294, and the first magnetic block 298 adsorbs the metal baffle 296, so that the metal baffle 296 follows the first magnetic block 298 to slide in the second moving groove 295. During the upward movement of the metal baffle 296 in the second moving groove 295, the silica gel desiccant package loses the shielding of the metal baffle 296 and slides out of the discharge chute 293. When the metal baffle 296 moves to the top of the second movable groove, the fixing bar 297 will continue to move upward in the first moving groove 294. As the fixing bar 297 continues to move upward, the first magnetic block 298 The adsorption effect of 298 on the metal baffle 296 gradually decreases, causing the metal plate to begin to fall according to its own weight and return to its original position. After the silica gel desiccant bag is fed into the interior of the collecting frame 24 through the feed port 25, the silica gel desiccant bag cannot enter the discharge chute 293 from the gap 292, and finally falls on the top of the guide slope 281. In the process of the electric push rod 22 pushing the connecting frame 23 upward, the pushing blocks 32 on both sides of the connecting frame 23 are always in contact with the lower side of the cover plate 33 hinged to the outside of the fixed cylinder 21 through the hinge seat 31. As the pushing blocks 32 move upward, the two cover plates 33 that were originally attracted to each other by the second magnetic block 34 will gradually separate. When the two cover plates 33 are in a horizontal state, the impurities originally on the cover plates 33 will fall from above the cover plates 33.After the two covers 33 are combined, if a bird lands on top of the cover 33, the second roller 35 above the cover 33 will begin to roll after the bird stands. As the cooling fan 11 inside the transformer body 1 continues to operate, the generated airflow will enter the valve 362 through the output pipe 361, then extend through the hose 363 to the underside of the corresponding cover 33 and connect to the guide groove 364 inside the cover 33. As the valve 362 directs the airflow through the hose 363 into the guide groove 364, the airflow enters the guide groove 364 because part of the second roller 35 is inside the guide groove 364. After entering the guide groove 364, the airflow is discharged from the gap between the second roller 35 and the cover 33.

[0050] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A power grid transformer protection device, comprising a transformer body (1) and a cooling fan (11) arranged on the lower side of the transformer body (1), characterized in that: A dehumidification component (2) is provided both inside and outside the transformer body (1); The dehumidification component (2) includes a fixed cylinder (21) fixedly connected to the four corners of the upper side of the transformer body (1), an electric push rod (22) is fixedly connected to the interior of the fixed cylinder (21), and the telescopic ends of the front and rear corresponding to the electric push rod (22) are fixedly connected to a connecting frame (23), and the lower side of the connecting frame (23) is fixedly connected to a collecting frame (24), and a feeding port (25) is provided on the side away from each other of the two collecting frames (24), and a ventilation slot (26) is provided on the outer surface of the collecting frame (24), and a guide frame (27) is fixedly connected to the left and right sides of the interior of the transformer body (1), and the collecting frame (24) is slidably connected to the interior of the guide frame (27) after moving upward; A discharge assembly (29) is provided on both the inner and outer sides of the transformer body (1), and the discharge assembly (29) includes a discharge outlet (291) provided on a side of the collection frame (24) close to the feed inlet (25); A notch (292) is provided at the center of the guide frame (27) near the discharge outlet (291), and the discharge outlet (291) is connected to the notch (292) after moving upward. A material discharge trough (293) is provided obliquely on both the left and right sides of the transformer body (1), and the notch (292) is connected to the material discharge trough (293). A first moving groove (294) is provided on the inner surface of the notch (292) near the guide slope (281), and a first moving groove (294) is provided on the other side of the first moving groove (294). A second movable groove (295) is provided, and a fixing bar (297) is fixedly connected to one side of the collection frame (24) close to the notch (292), and a first magnetic block (298) is fixedly connected to the other side of the fixing bar (297). After the fixing bar (297) and the first magnetic block (298) move upward, they are both slidably connected in the first movable groove (294), and a metal baffle (296) is slidably connected inside the second movable groove (295), and the first magnetic block (298) is magnetically adsorbed to the metal baffle (296).

2. A power grid transformer protection device according to claim 1, characterized in that: The shape of the collecting frame (24) is adapted to the shape of the interior of the guide frame (27), and the collecting frame (24) passes through the inner upper side of the transformer body (1).

3. A power grid transformer protection device according to claim 1, characterized in that: A monitoring assembly (28) is provided on both the inner and outer sides of the transformer body (1), and the monitoring assembly (28) comprises a guide slope (281) slidably connected to the lower side of the interior of the collection frame (24).

4. A power grid transformer protection device according to claim 3, characterized in that: A pressure sensor (283) is provided on the lower inner side of the collection frame (24); the lower side of the guide slope (281) is in press contact with the upper side of the pressure sensor (283); the inclined surface of the guide slope (281) is arranged in a linear array and is rollingly connected to a first roller (282); a warning member (284) is provided on the upper side of the transformer body (1); and both the pressure sensor (283) and the warning member (284) are electrically connected to an external power supply.

5. The power grid transformer protection device according to claim 1, characterized in that: A protective component (3) is provided on the upper side of the transformer body (1), and the protective component (3) includes a hinge seat (31) fixedly connected to the outside of the left and right corresponding fixing cylinders (21).

6. A power grid transformer protection device according to claim 5, characterized in that: The front and rear sides of the connecting frame (23) are fixedly connected with a push block (32), the outer side of the hinge seat (31) is fixedly connected with a cover plate (33), the front and rear surfaces corresponding to the opposite surfaces of the cover plate (33) are in extrusion contact, the left and right sides of the front and rear surfaces corresponding to the opposite surfaces of the cover plate (33) are fixedly connected with a second magnetic block (34), the front and rear second magnetic blocks (34) are magnetically attracted to each other, the upper side of the cover plate (33) is arranged in a linear array and is rollingly connected with a second roller (35), and the push block (32) moves upward and then slides into contact with the lower side of the cover plate (33).

7. A power grid transformer protection device according to claim 6, characterized in that: A dust blowing assembly (36) is provided on the upper side of the transformer body (1), and the dust blowing assembly (36) comprises an output pipe (361) fixedly connected to the upper side of the transformer body (1), and the output pipe (361) is communicated with the interior of the transformer body (1).

8. A power grid transformer protection device according to claim 7, characterized in that: A valve (362) is provided at the upper end of the output pipe (361), and hoses (363) are provided on both the front and rear sides of the valve (362). The hose (363) is connected to the valve (362), and the other end of the hose (363) extends to the lower side of the cover plate (33). A guide groove (364) is provided inside the cover plate (33), and the hose (363) is connected to the guide groove (364). The lower side of the second roller (35) is located inside the guide groove (364).

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