Oil-water separation device for 35kV box-type transformer accident oil pool of wind generating set

Abstract

The invention discloses an oil-water separation device for a 35kV box-type transformer accident oil pool of a wind generating set, and belongs to the technical field of transformer accident oil pools, the oil-water separation device comprises a main body module, an oil-water separation module and an automatic clearing module, the main body module comprises a bearing cylinder, the bottom of the bearing cylinder is provided with a support, and the oil-water separation module is arranged on the support; the oil-water separation module comprises an electric control valve fixedly connected to the center of the bottom of the bearing cylinder, the bottom of the electric control valve is fixedly connected with a steering pipe, one end of the electric control valve is fixedly connected with an external hose, a water sensor is arranged on the lower portion of the inner wall of the bearing cylinder, and the electric control valve is electrically connected with the water sensor. Through arrangement of a water immersion sensor, an electric control valve, a steering pipe, a pretreatment box floating and sinking sealing assembly and an overflow port, the device can realize oil-water separation, the situation that too much rainwater enters an accident oil pool, and consequently accident oil overflows to pollute the environment is avoided, and the using effect of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer accident oil pools, and more specifically to an oil-water separation device for an accident oil pool of a 35kV box-type transformer of a wind power generator set. Background Art

[0002] A wind turbine generator set is a system that converts the kinetic energy of wind into electrical energy. A wind turbine generator set includes a wind rotor and a generator. The wind rotor contains blades, a hub, and reinforcements. It has the functions of generating electricity by rotating the blades under wind power and rotating the generator head. A wind power source consists of a wind turbine generator set, a tower supporting the generator set, a battery charge controller, an inverter, an unloader, a grid-connected controller, and a battery pack. The transformer accident oil pool is a facility used to store cooling oil when a transformer accident occurs.

[0003] In view of the above-mentioned related technologies, an accident oil pool is configured at the bottom of the 35kV box-type transformer of the wind turbine generator set, but the currently configured accident oil pool can only simply collect the liquid on the box-type transformer platform, and cannot distinguish whether it is transformer oil or rainwater. This will result in rainwater filling the accident oil pool. When an accident occurs, when the transformer oil flows into the accident oil pool, it mixes with rainwater and overflows to the outside of the accident oil pool, causing transformer oil leakage, resulting in environmental pollution, and the transformer oil cannot be collected. For this reason, we propose an oil-water separation device for the accident oil pool of the 35kV box-type transformer of the wind turbine generator set. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set, which adopts the following technical solution: An oil-water separation device for an accident oil pool of a 35kV box-type transformer of a wind turbine generator set comprises a main body module, an oil-water separation module and an automatic cleaning module, wherein the main body module comprises a receiving tube, a bracket is arranged at the bottom of the receiving tube, the oil-water separation module comprises an electrically controlled valve fixedly connected to the center of the bottom of the receiving tube, a steering pipe is fixedly connected to the bottom of the electrically controlled valve, an external hose is fixedly connected to one end of the electrically controlled valve, a water immersion sensor is arranged at the lower part of the inner wall of the receiving tube, the electrically controlled valve is electrically connected to the water immersion sensor, a pretreatment box is fixedly connected to the top of the receiving tube, overflow ports are arranged at four angles at the bottom of the inner wall of the pretreatment box, a floating and sinking sealing assembly is arranged between the four overflow ports and the interior of the receiving tube, a stainless steel wire filter is arranged inside the pretreatment box, a support frame is fixedly connected to the interior of the pretreatment box, and the top of the support frame contacts the bottom of the stainless steel wire filter.

[0005] Furthermore, the floating and sinking sealing assembly includes a floating and sinking ring movably connected to the inside of the receiving tube, the top of the floating and sinking ring is fixedly connected to four connecting rods, a top plate is fixedly connected between the top ends of the four connecting rods, and the bottom of the top plate contacts the bottom of the inner wall of the pretreatment box.

[0006] By adopting the above technical solution, when the accident oil rises, the floating circle can be driven to rise, thereby opening the overflow port.

[0007] Furthermore, the floating and sinking sealing assembly also includes four sealing blocks fixedly connected to the bottom of the top plate, and the four sealing blocks are movably connected to the inside of the four overflow holes respectively. Four annular grooves are opened at the bottom of the inner wall of the pretreatment box, and the four annular grooves are respectively located outside the four overflow ports. The inside of the four annular grooves are movably connected with annular blocks, and the four annular blocks are fixedly connected to the bottom of the top plate.

[0008] By adopting the above technical solution, the overflow port is sealed through the cooperation of the annular block and the annular groove, thereby preventing rainwater from entering the overflow port.

[0009] Furthermore, the main module also includes two slide grooves, both of which are opened near the top of the bracket, and the interiors of the two slide grooves are slidably connected with slide bars, and the two slide bars are fixedly connected to the bottom of the receiving tube, and the interiors of the two slide bars and the interior of the bracket are threadedly connected with multiple first mounting bolts.

[0010] By adopting the above technical solution, the bracket and the receiving tube can be disassembled to facilitate replacement of brackets of different heights.

[0011] Furthermore, the automated cleaning module includes two winding and unwinding assemblies respectively arranged on the upper parts of both sides of the pretreatment box, the two ends of the stainless steel wire filter are respectively connected to the two winding and unwinding assemblies, a moving assembly is arranged between the front end and the rear end surface of the inner wall of the pretreatment box, a scraper is connected to the moving assembly, the scraper is located on the top of the stainless steel wire filter, a one-way transmission assembly is arranged between the moving assembly and one of the winding and unwinding assemblies, an opening and closing assembly and a collecting trough box are arranged on the rear end surface of the pretreatment box, the opening and closing assembly is connected to the moving assembly, and the collecting trough box is located below the opening and closing assembly.

[0012] By adopting the above technical solution, the stainless steel wire filter can be easily cleaned and rolled up.

[0013] Furthermore, the winding and unwinding assembly includes a winding and unwinding box fixedly connected to the upper part of one side of the receiving cylinder, a disassembly and assembly door is hinged on the side of the winding and unwinding box away from the pretreatment box, a winding and unwinding rod is rotatably connected between the front end face and the rear end face of the inner wall of the winding and unwinding box, two tension auxiliary rollers are rotatably connected between the front end face and the rear end face of the inner wall of the pretreatment box, one end of the stainless steel wire filter is provided with a plurality of second mounting bolts, one end of the stainless steel wire filter is fixedly connected to the outer surface of the winding and unwinding rod by a plurality of second mounting bolts, the stainless steel wire filter contacts the outer surfaces of the two tension auxiliary rollers, a blocking plate is fixedly connected between one side of the inner wall of the pretreatment box and the front end face and the rear end face, and the bottom of the blocking plate contacts the top of the stainless steel wire filter.

[0014] By adopting the above technical solution, the stainless steel wire filter can be disassembled and taken out.

[0015] Furthermore, the winding assembly also includes a resistance ring, both ends of the winding rod extend to the outside of the winding box, one end of the winding rod is fixedly connected to the resistance ring, the outer surface of the resistance ring is provided with a resistance block, and an elastic member is provided between the outer surface of the resistance block and the rear end face of the winding box.

[0016] By adopting the above technical solution, the winding rod is provided with movement resistance when rotating, thereby preventing the stainless steel wire filter from being in a loose state.

[0017] Furthermore, the moving component includes two threaded rods that are rotatably connected between the front end face and the rear end face of the inner wall of the pretreatment box, both ends of the two threaded rods extend to the outside of the pretreatment box, one end of the two threaded rods is fixedly connected to a first transmission roller, and a first transmission belt is transmission-connected between the outer surfaces of the two first transmission rollers, a worm is fixedly connected to the rear end face of one of the first transmission rollers, a motor is fixedly connected to the front end face of the pretreatment box, the output shaft of the motor is fixedly connected to the other end of one of the threaded rods, and the scraper is threadedly connected between the outer surfaces of the two threaded rods.

[0018] By adopting the above technical solution, the scraper can be driven to move, thereby scraping off impurities above the stainless steel wire filter.

[0019] Furthermore, the opening and closing assembly also includes two mounting seats fixedly connected to the rear end surface of the pretreatment box, a rotating shaft is rotatably connected between adjacent surfaces of the two mounting seats, two steering rods are fixedly connected to the outer surface of the rotating shaft, a sealing plate is fixedly connected between one ends of the two steering rods, a debris removal port is opened on the rear end surface of the pretreatment box, the debris removal port is located above the collecting trough box, the sealing plate is located outside the debris removal port, and a worm wheel meshing with the worm is fixedly connected to the outer surface of the rotating shaft.

[0020] By adopting the above technical solution, the sealing plate can be automatically driven to open when the scraper approaches the impurity removal port.

[0021] Furthermore, the one-way transmission assembly also includes a second transmission roller fixedly connected to the other end of the other threaded rod, the other end of the winding rod is fixedly connected to a rotating wheel, the outer surface of the rotating wheel is rotatably connected to a transmission roller sleeve, a second transmission belt is transmission-connected between the outer surface of the transmission roller sleeve and the outer surface of the second transmission roller, the inner wall of the transmission roller sleeve is provided with a ratchet groove, the outer surface of the rotating wheel is provided with a plurality of telescopic grooves, the interiors of the plurality of telescopic grooves are movably connected with ratchet blocks, one end of the plurality of ratchet blocks are movably connected to the interior of the ratchet groove, and the other ends of the plurality of ratchet blocks and the interiors of the plurality of telescopic grooves are fixedly connected with springs.

[0022] By adopting the above technical solution, when the scraper is reset, the stainless steel wire filter can be automatically driven to switch.

[0023] In summary, the present invention includes the following beneficial technical effects: The present invention arranges the floating and sinking sealing assembly of the water immersion sensor electric control valve steering pipe pretreatment box and the overflow port, so that the device can achieve oil-water separation, avoid excessive rainwater entering the accident oil pool, cause accident oil overflow and pollute the environment, and improve the use effect of the device; The present invention allows the bracket and the slide bar to be disassembled and separated by setting the slide bar and the first mounting bolt, so that the receiving tube can be used with brackets of different heights, thereby making the device more applicable. (3) The present invention arranges the threaded rod, scraper, worm, collection tank box, worm wheel and sealing plate so that the device can automatically scrape and collect impurities on the stainless steel wire filter, thereby avoiding a large amount of impurities remaining on the stainless steel wire filter, which is not conducive to the subsequent winding of the stainless steel wire filter; (4) The present invention arranges the rotating wheel, the transmission roller sleeve, the second transmission belt, the second transmission roller, the ratchet groove and the ratchet block so that the device can switch the stainless steel wire filter when driving the scraper to reset, thereby eliminating the need for frequent replacement of the filtering facilities and improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of the overall appearance structure of the present invention; Figure 3 It is a structural schematic diagram of the opening and closing assembly of the present invention; Figure 4 It is a structural schematic diagram of the mobile assembly of the present invention; Figure 5 It is a schematic diagram of disassembling the bracket of the present invention; Figure 6 It is a schematic diagram of the cross-sectional explosion structure of the floating and sinking sealing assembly of the present invention; Figure 7 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Fig. 9 For the present invention Figure 4 Enlarged structural diagram at point C in the middle.

[0025] Description of the numbers in the figure: 100, main body module; 110, receiving tube; 120, bracket; 130, slide bar; 140, first mounting bolt; 200, oil-water separation module; 210, water immersion sensor; 220, electric control valve; 230, steering tube; 240, external hose; 250, pretreatment box; 260, floating and sinking sealing assembly; 261, floating and sinking ring; 262, connecting rod; 263, top plate; 264, sealing block; 265, annular groove; 266, annular block; 270, stainless steel wire filter; 280, supporting frame; 300, automated cleaning module; 310, unwinding assembly; 311, unwinding box; 312, disassembly door; 313, unwinding rod; 314, tension auxiliary roller; 315, second mounting bolt; 316, resistance ring; 317, elastic member; 320, moving assembly; 321, threaded rod; 322, first transmission roller; 323, first transmission belt; 324, worm; 330, scraper; 340, one-way transmission assembly; 341, second transmission roller; 342, rotating wheel; 343, transmission roller sleeve; 344, second transmission belt; 345, ratchet groove; 346, ratchet block; 347, spring; 350, opening and closing assembly; 351, mounting seat; 352, worm wheel; 353, steering rod; 354, sealing plate; 360, collecting tank box. DETAILED DESCRIPTION

[0026] 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, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The following is combined with Figure 1-9 The present invention is described in further detail.

[0030] See also Figure 1-9 , an oil-water separation device for an accident oil pool of a 35kV box-type transformer of a wind turbine generator set, comprising a main body module 100, an oil-water separation module 200 and an automatic cleaning module 300, the main body module 100 comprises a receiving tube 110, a bracket 120 is arranged at the bottom of the receiving tube 110, the oil-water separation module 200 comprises an electric control valve 220 fixedly connected to the center of the bottom of the receiving tube 110, a steering pipe 230 is fixedly connected to the bottom of the electric control valve 220, an external hose 240 is fixedly connected to one end of the electric control valve 220, and a bracket 120 is arranged at the bottom of the inner wall of the receiving tube 110. A water immersion sensor 210 is provided, and the electric control valve 220 is electrically connected to the water immersion sensor 210. A pretreatment box 250 is fixedly connected to the top of the receiving tube 110. Overflow ports are opened at four angles at the bottom of the inner wall of the pretreatment box 250. A floating and sinking sealing assembly 260 is arranged between the four overflow ports and the interior of the receiving tube 110. A stainless steel wire filter 270 is arranged inside the pretreatment box 250. A support frame 280 is fixedly connected to the interior of the pretreatment box 250, and the top of the support frame 280 is in contact with the bottom of the stainless steel wire filter 270.

[0031] During use, the device will receive liquid through the pretreatment box 250, and rainwater will enter the interior of the receiving tube 110 after being filtered through the stainless steel wire filter 270. After the water immersion sensor 210 recognizes the rain signal, it will control the electric control valve 220 to open. The electric control valve 220 will guide the rainwater into the steering pipe 230 and the external hose 240. The rainwater flows into the ground through the external hose 240 to avoid entering the accident oil pool. When the water immersion sensor 210 recognizes the accident oil, the electric control valve 220 will not be opened, so that the oil level inside the receiving tube 110 gradually increases, thereby pushing the floating and sinking sealing assembly 260 to rise, so that the seal of the four overflow grooves is released. The bottom of the support frame 280 limits the height of the floating and sinking sealing assembly 260, and the accident oil that subsequently overflows the receiving tube 110 will be discharged into the accident oil pool through the overflow port, thereby realizing oil-water separation, avoiding excessive rainwater from entering the accident oil pool, causing the accident oil to overflow and pollute the environment, and improving the use effect of the device.

[0032] The floating and sinking sealing assembly 260 includes a floating and sinking ring 261 movably connected to the inside of the receiving tube 110, and four connecting rods 262 are fixedly connected to the top of the floating and sinking ring 261. A top plate 263 is fixedly connected between the top ends of the four connecting rods 262. The bottom of the top plate 263 contacts the bottom of the inner wall of the pretreatment box 250. The floating and sinking sealing assembly 260 also includes four sealing blocks 264 fixedly connected to the bottom of the top plate 263. The four sealing blocks 264 are movably connected to the inside of the four overflow holes, respectively. The bottom of the inner wall of the pretreatment box 250 is provided with four annular grooves 264. 65, the four annular grooves 265 are respectively located outside the four overflow ports, the interiors of the four annular grooves 265 are movably connected with annular blocks 266, the four annular blocks 266 are fixedly connected to the bottom of the top plate 263, the main body module 100 also includes two slide grooves, both of which are opened near the top of the bracket 120, the interiors of the two slide grooves are slidably connected with slide bars 130, the two slide bars 130 are fixedly connected to the bottom of the receiving tube 110, and the interiors of the two slide bars 130 and the interior of the bracket 120 are threadedly connected with a plurality of first mounting bolts 140.

[0033] As the oil level inside the receiving tube 110 gradually rises, the accident oil inside the receiving tube 110 will push the floating ring 261 to rise, and the floating ring 261 will drive the top plate 263 to rise through the connecting rod 262, and the top plate 263 will drive the sealing block 264 to withdraw from the overflow port and the annular block 266 to withdraw from the annular groove 265, thereby releasing the seal of the four overflow grooves, and the bottom of the supporting frame 280 limits the rising height of the top plate 263, and the subsequent accident oil overflowing from the top of the receiving tube 110 will be discharged into the accident oil pool through the overflow port, thereby realizing oil-water separation, so that the receiving tube 110 can be separated from the bracket 120, and the bracket 120 of different heights can be replaced for adaptive use.

[0034] The automated cleaning module 300 includes two winding and unwinding assemblies 310 respectively arranged at the upper parts of both sides of the pretreatment box 250, and the two ends of the stainless steel wire filter 270 are respectively connected to the two winding and unwinding assemblies 310. A moving assembly 320 is arranged between the front end and the rear end face of the inner wall of the pretreatment box 250, and a scraper 330 is connected to the moving assembly 320, and the scraper 330 is located on the top of the stainless steel wire filter 270. A one-way transmission assembly 340 is arranged between the moving assembly 320 and one of the winding and unwinding assemblies 310. An opening and closing assembly 350 and a collecting tank box 360 are arranged on the rear end face of the pretreatment box 250. The opening and closing assembly 350 is connected to the moving assembly 320, and the collecting tank box 360 is located below the opening and closing assembly 350. The winding and unwinding assembly 310 includes a fixed connection to one side of the receiving tube 110. The upper winding box 311 has a disassembly and assembly door 312 hinged on one side of the winding box 311 away from the pretreatment box 250, a winding rod 313 is rotatably connected between the front end face and the rear end face of the inner wall of the winding box 311, and two tension auxiliary rollers 314 are rotatably connected between the front end face and the rear end face of the inner wall of the pretreatment box 250, one end of the stainless steel wire filter 270 is provided with a plurality of second mounting bolts 315, one end of the stainless steel wire filter 270 is fixedly connected to the outer surface of the winding rod 313 by the plurality of second mounting bolts 315, the stainless steel wire filter 270 contacts the outer surfaces of the two tension auxiliary rollers 314, a blocking plate is fixedly connected between one side of the inner wall of the pretreatment box 250 and the front end face and the rear end face, and the bottom of the blocking plate contacts the top of the stainless steel wire filter 270.

[0035] By setting the second mounting bolt 315, the stainless steel wire filter 270 can be replaced by opening the disassembly door 312 after use, which is convenient for the staff to operate.

[0036] The unwinding assembly 310 also includes a resistance ring 316, both ends of the unwinding rod 313 extend to the outside of the unwinding box 311, one end of the unwinding rod 313 is fixedly connected to the resistance ring 316, the outer surface of the resistance ring 316 is provided with a resistance block, and an elastic member 317 is provided between the outer surface of the resistance block and the rear end surface of the unwinding box 311, and the moving assembly 320 includes two threaded rods 321 that are rotatably connected between the front end surface and the rear end surface of the inner wall of the pretreatment box 250, both ends of the two threaded rods 321 extend to the outside of the pretreatment box 250, one end of the two threaded rods 321 is fixedly connected to a first transmission roller 322, and a first transmission belt 323 is transmission-connected between the outer surfaces of the two first transmission rollers 322, and the rear end surface of one of the first transmission rollers 322 is fixedly connected The worm 324 and the front end face of the pretreatment box 250 are fixedly connected with a motor, the output shaft of the motor is fixedly connected to the other end of one of the threaded rods 321, the scraper 330 is threadedly connected between the outer surfaces of the two threaded rods 321, the opening and closing assembly 350 also includes two mounting seats 351 both fixedly connected to the rear end face of the pretreatment box 250, a rotating shaft is rotatably connected between the adjacent sides of the two mounting seats 351, the outer surface of the rotating shaft is fixedly connected with two steering rods 353, a sealing plate 354 is fixedly connected between one ends of the two steering rods 353, a dust removal port is opened on the rear end face of the pretreatment box 250, the dust removal port is located above the collecting tank box 360, the sealing plate 354 is located outside the dust removal port, and a worm wheel 352 meshing with the worm 324 is fixedly connected to the outer surface of the rotating shaft.

[0037] Turn on the motor to drive the threaded rod 321, and the two threaded rods 321 are rotated through the linkage of the first transmission belt 323, thereby driving the scraper 330 to move, and at the same time the worm 324 will rotate the transmission worm gear 352, and the worm gear 352 will drive the rotating shaft and the steering rod 353 to flip, so that the sealing plate 354 will flip and withdraw from the impurity removal port, so that the scraper 330 will push the impurities above it into the collection tank box 360 for collection, and turning on the motor in the reverse direction can drive the scraper 330 to reset, and when the scraper 330 is reset, the sealing plate 354 will re-block the impurity removal port.

[0038] The one-way transmission assembly 340 also includes a second transmission roller 341 fixedly connected to the other end of another threaded rod 321, the other end of the winding rod 313 is fixedly connected to a rotating wheel 342, the outer surface of the rotating wheel 342 is rotatably connected to a transmission roller sleeve 343, a second transmission belt 344 is transmission-connected between the outer surface of the transmission roller sleeve 343 and the outer surface of the second transmission roller 341, a ratchet groove 345 is provided on the inner wall of the transmission roller sleeve 343, a plurality of telescopic grooves are provided on the outer surface of the rotating wheel 342, ratchet blocks 346 are movably connected inside the plurality of telescopic grooves, one end of the plurality of ratchet blocks 346 are movably connected inside the ratchet groove 345, and the other ends of the plurality of ratchet blocks 346 and the interior of the plurality of telescopic grooves are fixedly connected with springs 347.

[0039] When the threaded rod 321 rotates the transmission scraper 330 to move and push the impurities, the transmission roller sleeve 343 will be driven by the second transmission belt 344 to rotate idly on the outer surface of the rotating wheel 342, and the ratchet block 346 will be pushed to reciprocate and extend through the ratchet groove 345, thereby not driving the winding rod 313 to rotate. When the threaded rod 321 transmission scraper 330 is reset, the transmission roller sleeve 343 will push the rotating wheel 342 through the ratchet groove 345 and the ratchet block 346, and the rotating wheel 342 will drive the winding rod 313 to rotate to pull and rewind the stainless steel wire filter 270, and the assisting block contacts the resistance circle 316 through the elastic force of the elastic member 317, thereby providing a certain resistance to the rotation of the winding rod 313, so that the stainless steel wire filter 270 remains in a straight state, thereby rewinding the dirty and messy part of the stainless steel wire filter 270, and allowing the other unused stainless steel wire filter 270 to filter rainwater.

[0040] The implementation principle of the embodiment of the present invention is as follows: during use, the device will receive liquid through the pretreatment box 250, and rainwater will enter the interior of the receiving tube 110 after being filtered through the stainless steel wire filter 270 to prevent impurities in the rainwater from clogging the electric control valve 220. After the water immersion sensor 210 recognizes the rainwater signal, it will control the electric control valve 220 to open, and the electric control valve 220 will guide the rainwater into the steering pipe 230 and the external hose 240. The rainwater flows into the ground through the external hose 240 to avoid entering the accident oil pool. When the water immersion sensor 210 recognizes the accident oil, the electric control valve 220 will not be opened, so that the oil level inside the receiving tube 110 will gradually increase, so that the accident oil inside the receiving tube 110 will push the floating circle 261 to rise, and the floating circle 261 The top plate 263 will be driven to rise through the connecting rod 262, and the top plate 263 will drive the sealing block 264 to withdraw from the overflow port and the annular block 266 to withdraw from the annular groove 265, thereby releasing the seal of the four overflow grooves, and the bottom of the support frame 280 limits the rising height of the top plate 263, and the accident oil on the top of the subsequent overflow receiving cylinder 110 will be discharged into the accident oil pool through the overflow port, thereby realizing oil-water separation, avoiding excessive rainwater from entering the accident oil pool, causing accident oil overflow to pollute the environment, and improving the use effect of the device. After using the device for a long time, more impurities will be filtered on the stainless steel wire filter 270, which is easy to block the filter holes above it. Subsequent staff can turn on the motor to drive the threaded rod 321, and the two are linked through the first transmission belt 323. The threaded rod 321 rotates, thereby driving the scraper 330 to move, and at the same time the worm gear 324 will rotate the transmission worm gear 352, and the worm gear 352 will drive the rotating shaft and the steering rod 353 to flip, so that the sealing plate 354 will flip and withdraw from the impurity removal port, so that the scraper 330 will push the impurities above it into the collecting tank box 360 for collection. Reverse opening of the motor can drive the scraper 330 to reset, and when the scraper 330 is reset, the sealing plate 354 will re-block the impurity removal port, and when the threaded rod 321 rotates the transmission scraper 330 to move and push the impurities, the transmission roller sleeve 343 will be driven by the second transmission belt 344 to idle on the outer surface of the rotating wheel 342, and the ratchet block 346 will be pushed to reciprocate through the ratchet groove 345, thereby not transmitting the winding rod 31 3 rotates, and when the threaded rod 321 drives the scraper 330 to reset, the driving roller sleeve 343 will push the rotating wheel 342 through the ratchet groove 345 and the ratchet block 346, and the rotating wheel 342 will drive the winding rod 313 to rotate to pull and rewind the stainless steel wire filter 270, and the booster block contacts the resistance circle 316 through the elastic force of the elastic member 317, thereby providing a certain resistance to the rotation of the winding rod 313, so that the stainless steel wire filter 270 can be kept in a straight state, so as to rewind the dirty part of the stainless steel wire filter 270, and let the other part of the unused stainless steel wire filter 270 filter rainwater, so that there is no need to frequently replace the filtering facilities, and at the same time improve the filtering effect, through the setting of the tension auxiliary roller 314 and the first mounting bolt 140,The bracket 120 and the stainless steel wire filter 270 can be disassembled, and the bracket 120 can be replaced with a bracket 120 of different heights for adaptive use.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-water separation device for an accident oil pool of a 35 kV box-type transformer of a wind turbine generator set, comprising a main module (100), an oil-water separation module (200) and an automatic cleaning module (300), characterized in that: The main body module (100) comprises a receiving tube (110), and a bracket (120) is provided at the bottom of the receiving tube (110); The oil-water separation module (200) comprises an electrically controlled valve (220) fixedly connected to the center of the bottom of the receiving cylinder (110); the bottom of the electrically controlled valve (220) is fixedly connected to a steering tube (230); one end of the electrically controlled valve (220) is fixedly connected to an external hose (240); a water immersion sensor (210) is provided at the lower portion of the inner wall of the receiving cylinder (110); the electrically controlled valve (220) is electrically connected to the water immersion sensor (210); and the top of the receiving cylinder (110) is fixedly connected to the external hose (240). A pretreatment box (250) is provided, and overflow ports are provided at four angles at the bottom of the inner wall of the pretreatment box (250). A floating and sinking sealing assembly (260) is provided between the four overflow ports and the interior of the receiving cylinder (110). A stainless steel wire filter (270) is provided inside the pretreatment box (250). A support frame (280) is fixedly connected to the interior of the pretreatment box (250), and the top of the support frame (280) is in contact with the bottom of the stainless steel wire filter (270).

2. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 1 is characterized in that: The floating and sinking sealing assembly (260) comprises a floating and sinking ring (261) movably connected to the inside of the receiving tube (110); four connecting rods (262) are fixedly connected to the top of the floating and sinking ring (261); a top plate (263) is fixedly connected between the top ends of the four connecting rods (262); and the bottom of the top plate (263) contacts the bottom of the inner wall of the pretreatment box (250).

3. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 2 is characterized by: The floating and sinking sealing assembly (260) further comprises four sealing blocks (264) which are fixedly connected to the bottom of the top plate (263), and the four sealing blocks (264) are movably connected to the inside of four overflow holes respectively. Four annular grooves (265) are provided at the bottom of the inner wall of the pretreatment box (250), and the four annular grooves (265) are respectively located outside the four overflow ports. The inside of the four annular grooves (265) are movably connected to annular blocks (266), and the four annular blocks (266) are fixedly connected to the bottom of the top plate (263).

4. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 3 is characterized by: The main body module (100) further comprises two slide grooves both opened at the top of the bracket (120), the interiors of the two slide grooves being slidably connected with slide bars (130), the two slide bars (130) being fixedly connected to the bottom of the receiving tube (110), and a plurality of first mounting bolts (140) being threadedly connected between the interiors of the two slide bars (130) and the interiors of the bracket (120).

5. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 4 is characterized in that: The automated cleaning module (300) comprises two winding and unwinding assemblies (310) respectively arranged at the upper parts of both sides of the pretreatment box (250); the two ends of the stainless steel wire filter (270) are respectively connected to the two winding and unwinding assemblies (310); a moving assembly (320) is arranged between the front end and the rear end of the inner wall of the pretreatment box (250); a scraper (330) is connected to the moving assembly (320); the scraper (330) is located on the top of the stainless steel wire filter (270); a one-way transmission assembly (340) is arranged between the moving assembly (320) and one of the winding and unwinding assemblies (310); an opening and closing assembly (350) and a collecting tank box (360) are arranged on the rear end of the pretreatment box (250); the opening and closing assembly (350) is connected to the moving assembly (320); and the collecting tank box (360) is located below the opening and closing assembly (350).

6. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 5 is characterized by: The unwinding assembly (310) comprises a unwinding box (311) fixedly connected to an upper portion of one side of the receiving cylinder (110); a disassembly door (312) is hingedly connected to a side of the unwinding box (311) away from the pretreatment box (250); a unwinding rod (313) is rotatably connected between the front end face and the rear end face of the inner wall of the unwinding box (311); two tension auxiliary rollers (314) are rotatably connected between the front end face and the rear end face of the inner wall of the pretreatment box (250); and the stainless steel wire filter screen (270) A plurality of second mounting bolts (315) are provided at one end of the stainless steel wire filter (270), one end of the stainless steel wire filter (270) is fixedly connected to the outer surface of the winding rod (313) via the plurality of second mounting bolts (315), the stainless steel wire filter (270) is in contact with the outer surfaces of two tension auxiliary rollers (314), a blocking plate is fixedly connected between one side of the inner wall of the pretreatment box (250) and the front end face and the rear end face, and the bottom of the blocking plate is in contact with the top of the stainless steel wire filter (270).

7. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 6 is characterized by: The unwinding assembly (310) further comprises a resistance ring (316), both ends of the unwinding rod (313) extend to the outside of the unwinding box (311), one end of the unwinding rod (313) is fixedly connected to the resistance ring (316), a resistance block is arranged on the outer surface of the resistance ring (316), and an elastic member (317) is arranged between the outer surface of the resistance block and the rear end surface of the unwinding box (311).

8. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 7 is characterized in that: The moving assembly (320) comprises two threaded rods (321) both rotatably connected between the front end face and the rear end face of the inner wall of the pretreatment box (250), both ends of the two threaded rods (321) extend to the outside of the pretreatment box (250), one end of the two threaded rods (321) is fixedly connected to a first transmission roller (322), a first transmission belt (323) is transmission-connected between the outer surfaces of the two first transmission rollers (322), a worm (324) is fixedly connected to the rear end face of one of the first transmission rollers (322), a motor is fixedly connected to the front end face of the pretreatment box (250), an output shaft of the motor is fixedly connected to the other end of one of the threaded rods (321), and the scraper (330) is threadedly connected between the outer surfaces of the two threaded rods (321).

9. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 8 is characterized in that: The opening and closing assembly (350) further comprises two mounting seats (351) both fixedly connected to the rear end surface of the pretreatment box (250); a rotating shaft is rotatably connected between adjacent surfaces of the two mounting seats (351); two steering rods (353) are fixedly connected to the outer surface of the rotating shaft; a sealing plate (354) is fixedly connected between one ends of the two steering rods (353); a debris removal opening is formed on the rear end surface of the pretreatment box (250); the debris removal opening is located above the collecting tank box (360); the sealing plate (354) is located outside the debris removal opening; and a worm wheel (352) meshing with the worm (324) is fixedly connected to the outer surface of the rotating shaft.

10. The oil-water separation device for the accident oil pool of a 35kV box-type transformer of a wind turbine generator set according to claim 9, characterized in that: The one-way transmission assembly (340) further comprises a second transmission roller (341) fixedly connected to the other end of another threaded rod (321); the other end of the winding rod (313) is fixedly connected to a rotating wheel (342); the outer surface of the rotating wheel (342) is rotatably connected to a transmission roller sleeve (343); a second transmission belt (344) is transmission-connected between the outer surface of the transmission roller sleeve (343) and the outer surface of the second transmission roller (341); a ratchet groove (345) is provided on the inner wall of the transmission roller sleeve (343); a plurality of telescopic grooves are provided on the outer surface of the rotating wheel (342); ratchet blocks (346) are movably connected inside the plurality of telescopic grooves; one end of the plurality of ratchet blocks (346) is movably connected inside the ratchet groove (345); and the other ends of the plurality of ratchet blocks (346) and the inside of the plurality of telescopic grooves are fixedly connected to springs (347).

Images