Protective device for inversion equipment of wind power plant

Abstract

The invention relates to the technical field of power electronic equipment, in particular to a protective device for inversion equipment of a wind power plant, which comprises a mounting frame for surrounding the inversion equipment, an angle adjusting device is arranged on the inner side of the mounting frame, a shielding mechanism is arranged on one side of the angle adjusting device, and the angle adjusting device can drive the shielding mechanism to rotate. And one side of the shielding mechanism is provided with a water storage mechanism, and the water storage mechanism can store rain and snow water generated in rainy and snowy weather. The angle adjusting device is used for driving the shielding mechanism to shield the inversion equipment, then the shielding mechanism is used for guiding part of rain and snow water in rainy and snowy weather into the water storage mechanism to be stored, and therefore the purposes of recycling water resources and avoiding water resource waste are achieved; auxiliary heat dissipation and cooling can be carried out on the surface of the inversion equipment, the fault rate of the inversion equipment is reduced, and the service life of the inversion equipment is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of power electronic equipment, and in particular to a protective device for wind power plant inverter equipment. Background Art

[0002] A wind power inverter is a power conversion device, whose main function is to convert the alternating current (AC) power generated by a wind turbine into direct current (DC) power that can be used for a power grid or power supply equipment, or to convert the DC power into AC power of a specific frequency and voltage as needed. After the wind power inverter is installed in an open-air environment, a protective device is often required to protect it. In China, Patent Publication No.: CN118367457B discloses a protective device for a photovoltaic inverter, which includes a bearing component, a base, a high-voltage chamber arranged on the base, an inverter chamber arranged on the right side of the high-voltage chamber, and a protective device. A transformer placed between a high-voltage chamber and an inverter chamber; a protective component, including a moving component arranged on the side wall of the high-voltage chamber, a shielding component arranged on the high-voltage chamber, a guiding component arranged on the shielding component, a rotating component arranged on the guiding component, a toggle component arranged on the moving component, and a guiding component arranged on the toggle component; a fire extinguishing component, including an elastic component arranged on the shielding component, and a powder dropping component arranged in the shielding component. The device of the present invention can prevent the fire on the transformer from spreading, and can automatically extinguish the fire, thereby realizing the protection of the photovoltaic inverter all-in-one machine.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: although the above-mentioned device can effectively prevent the spread of fire in a transformer, the inverter is often installed in an open-air environment due to installation requirements such as heat dissipation. The inverter often needs to withstand harsh working environments, such as rain, snow and strong sunshine. The device lacks protection against these severe weather conditions, especially it cannot cool down the inverter in strong sunshine, thereby reducing the service life of the inverter and increasing the failure rate. Moreover, in rainy and snowy weather, it is difficult for the protective device to recycle, store and reuse snow water and rain water, resulting in a waste of water resources. Summary of the invention

[0004] The purpose of the present invention is to provide a protective device for wind farm inverter equipment, which covers the top of the inverter equipment through a shielding mechanism to shield the inverter equipment in extreme weather such as rain, snow and exposure to the sun, and then uses a water storage mechanism to store water generated in rainy and snowy weather, recycle it, and dissipate heat and cool the inverter equipment in hot weather.

[0005] To achieve the above-mentioned purpose, a protective device for wind power inverter equipment is provided, which includes a mounting frame for surrounding the inverter equipment, an angle adjustment device is provided inside the mounting frame, a shielding mechanism is provided on one side of the angle adjustment device, the angle adjustment device can drive the shielding mechanism to rotate, and provide shade for the inverter equipment and shield it from rain and snow, a water storage mechanism is provided on one side of the shielding mechanism, and the water storage mechanism can store rain and snow water generated in rainy and snowy weather:

[0006] The shielding mechanism shields the inverter device from sunlight and rain and snow from the top of the installation frame, so that rain and snow water can be collected through the shielding mechanism in rainy and snowy weather, and the surface of the inverter device can be dissipated and cooled down through the water storage mechanism in hot weather.

[0007] As a further improvement of the present technical solution, the shielding mechanism includes a shielding cover fixedly matched with one side of the angle adjustment device and a plurality of first rotating shafts. The shape of the shielding cover is set to be a pyramid. The plurality of outer inclined surfaces of the shielding cover are each provided with a plurality of water flow grooves, and the water flow grooves can accelerate the downward flow of rain and snow water.

[0008] As a further improvement of the technical solution, a first groove is provided at the bottom of several water troughs on one of the outer inclined surfaces, an inner cavity is provided at the bottom of the first groove, a fixing plate is fixedly provided at the center of the inner inclined surface of the shielding cover corresponding to the outer inclined surface, and a second groove is provided at one end of the inner inclined surface, a first slide groove is provided at the center of the top of the fixing plate, a first cylinder is fixedly installed on one side of the fixing plate through a first fixing block, and a slide plate that slidably cooperates with the first slide groove is fixedly provided at the output end of the first cylinder through a second fixing block;

[0009] A first rack is fixedly provided on one side of the skateboard, and a plurality of first gears are meshed on one side of the first rack and rotatably cooperate with one side of the top of the fixed plate. A second gear is meshed on one side of the first gear and fixedly cooperates with the surface of the first rotating shaft, and the second gear is arranged in a second groove.

[0010] As a further improvement of the technical solution, a rotating tube that rotates with the inner cavity is fixedly provided at one end of the first rotating shaft through the first groove, and a filter screen is fixedly provided on one side of the rotating tube. The filter screen can change the flow direction of part of the rain and snow water so that it is temporarily stored in the rotating tube. An opening is provided on the surface of the rotating tube at a relative position to the filter screen. The opening allows the rain and snow water in the rotating tube to flow to the water storage mechanism for long-term storage.

[0011] As a further improvement of the present technical solution, the water storage mechanism includes a water storage box fixedly matched with the surface of the angle adjustment device, one end of one side of the water storage box is connected to an intermediate box through a first conduit, and one side of the intermediate box is connected to a plurality of second conduits respectively connected to a plurality of inner cavities.

[0012] As a further improvement of the present technical solution, a mounting hole is provided at the center of the other side of the water storage box, a block is fixedly provided at the mounting hole, a plurality of water conduction holes connected to the water storage box are provided on one side of the block, a circular groove connected to the water conduction holes is provided at one end of the block, an adjusting tube is rotatably provided in the circular groove, a plurality of pairs of second openings are symmetrically provided on the surface of the adjusting tube, the aperture of the second openings is the same as the size of the water conduction holes, a third gear is mounted on one end of the adjusting tube, a second rack is meshed with the outer wall of the third gear, a second cylinder is fixedly provided on one end of the second rack through a connecting block, and a third fixing block fixedly matched with one end of the other side of the water storage box is fixedly provided at the bottom of the second cylinder.

[0013] As a further improvement of the technical solution, one end of the water guide hole is connected to a fourth conduit, one end of the fourth conduit is connected to a fifth conduit, and one end of the fifth conduit is connected to a plurality of nozzles.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the protective device for wind farm inverter equipment, the first rack moves to drive the first gear and the second gear to rotate, and then the first rotating shaft and the rotating tube rotate, so that the rotating tube is connected with the water flow trough, so that rain and snow water in rainy and snowy weather flows through the rotating tube and the middle box and enters the water storage box for storage, thereby achieving the purpose of recycling water resources and avoiding waste of water resources.

[0016] 2. In the protective device for the inverter equipment of the wind farm, the regulating tube is driven to rotate by the rotation of the third gear, so that the axis of the second opening does not coincide with the axis of the water guide hole, and the water stored in the water storage box slowly drips out from the nozzle through the fourth conduit and the fifth conduit. The water flows downward along the surface of the inverter equipment, which can take away the heat generated by the inverter equipment when it is working, and assist in heat dissipation and cooling of the inverter equipment, thereby reducing the failure rate and extending the service life of the inverter equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the external first-view structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the external second viewing angle structure of the present invention;

[0019] Figure 3 A cross-sectional view of the present invention as a whole;

[0020] Figure 4 It is a schematic diagram of the shielding mechanism structure of the present invention;

[0021] Figure 5 It is a schematic structural diagram of the water storage mechanism of the present invention from a first viewing angle;

[0022] Figure 6 It is a structural schematic diagram of the water storage mechanism of the present invention from a second viewing angle;

[0023] Figure 7 It is a schematic diagram of the connection between the first cylinder, the slide plate, the first gear and other structures of the present invention;

[0024] Figure 8 It is a schematic diagram of the connection between the second gear, the first rotating shaft and the rotating tube of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the block of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the regulating tube of the present invention;

[0027] Fig.11 For the present invention Figure 1 A magnified view of the part A in the middle;

[0028] Fig.12 For the present invention Figure 2 Enlarged view of part B in the middle.

[0029] The meaning of each number in the figure is:

[0030] 1. Mounting frame; 2. Angle adjustment device; 3. Shielding mechanism; 301. Shielding cover; 302. First rotating shaft; 303. Fixed plate; 304. First fixed block; 305. First cylinder; 306. Second fixed block; 307. Slide plate; 308. First rack; 309. First gear; 310. Second gear; 311. Rotating tube; 312. Filter; 4. Water storage mechanism; 401. Water storage box; 402. First conduit; 403. Middle box; 404. Second conduit; 405. Block; 406. Adjusting tube; 407. Third gear; 408. Second rack; 409. Second cylinder; 410. Third fixed block; 411. Fourth conduit; 412. Fifth conduit; 413. Sprinkler. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The protective devices of today's inverter equipment cannot further protect against the damage caused by severe weather such as rain, snow and direct sunlight, and are also unable to recycle water resources in rainy and snowy weather.

[0033] To this end, the present invention provides a protective device for wind power inverter equipment, see Figure 1-3 It includes an installation frame 1 for surrounding the inverter device. When the inverter device is installed, the axis of the inverter device coincides with the axis of the installation frame 1. An angle adjustment device 2 is provided on the inner side of the installation frame 1. The angle adjustment device 2 is known to those skilled in the art and will not be described in detail. A shielding mechanism 3 is provided on one side of the angle adjustment device 2. The angle adjustment device 2 can drive the shielding mechanism 3 to rotate. The main function of the angle adjustment device 2 is to drive the shielding mechanism 3 to rotate. When the shielding mechanism 3 is not needed to shield the inverter device, the angle adjustment device 2 drives the shielding mechanism 3 to rotate as a whole. The shielding mechanism 3 is in a vertical state to avoid affecting the normal operation of the inverter device. When the shielding mechanism 3 is needed to shield the inverter device, the angle adjustment device 2 drives the shielding mechanism 3 to rotate to the top of the installation frame 1 and is in a horizontal state. The shielding mechanism 3 completely covers the inverter device to shield the inverter device, and provides shade and rain and snow protection for the inverter device. A water storage mechanism 4 is provided on one side of the shielding mechanism 3. The water storage mechanism 4 can store rain and snow water generated in rainy and snowy weather. The shielding mechanism 3 itself can change the flow direction of part of the rain and snow water, and store part of the rain and snow water in the water storage mechanism 4 for storage:

[0034] The shielding mechanism 3 shields the inverter device from sunlight and rain and snow from the top of the installation frame 1, so that rain and snow water can be collected by the shielding mechanism 3 in rainy and snowy weather, and the surface of the inverter device can be dissipated and cooled by the water storage mechanism 4 in hot weather. The shielding mechanism 3 can not only shield the inverter device from rain, snow and sunlight, but also collect part of the rain and snow water, so that part of the rain and snow water changes its flow direction and flows to the water storage mechanism 4 for storage. This part of the recovered water in the water storage mechanism 4 can be released from the water storage mechanism 4 in hot weather and fall on the surface of the inverter device to dissipate heat and cool the inverter device.

[0035] See also Figure 1 and Figure 4 The shielding mechanism 3 includes a shielding cover 301 fixedly matched with one side of the angle adjustment device 2 and a plurality of first rotating shafts 302. The shielding cover 301 is shaped as a pyramid. The shielding cover 301 can completely cover the installation frame 1 underneath it. There are 4 edges in the pyramid, and the number of edges can be increased or decreased according to the specific design requirements of the shielding cover 301. However, there is at least one edge. Multiple outer inclined surfaces of the shielding cover 301 are provided with multiple water flow grooves. When rain and snow water flows downward along the water flow grooves, the speed is faster, and rain and snow can be prevented from staying on the shielding cover 301 as much as possible to prevent the snow layer from crushing the shielding cover 301.

[0036] See also Figure 4 , 7 -8 and Fig.11, a first groove is provided at the bottom of several water flow grooves on one outer inclined surface, and the first groove can be provided on one outer inclined surface or on multiple outer inclined surfaces, and can be designed according to specific requirements. An inner cavity is provided at the bottom of the first groove, and the inner cavity is set to be cylindrical, and the multiple inner cavities are evenly arranged, and the upper and lower ends of the inner cavity are respectively flush, and a fixing plate 303 is fixedly provided at the center of the inner inclined surface of the shielding cover 301 corresponding to the outer inclined surface, and a second groove is provided at one end of the inner inclined surface, and the position of the second groove is set at one end of the multiple inner cavities, and a first slide groove is provided at the top center of the fixing plate 303, and a first cylinder 305 is fixedly installed on one side of the fixing plate 303 through a first fixing block 304, and a slide plate 307 that slidably cooperates with the first slide groove is fixedly provided at the output end of the first cylinder 305 through a second fixing block 306, and the first cylinder 305 is extended and retracted to drive the slide plate 307 to slide in the first slide groove, and the movement range of the slide plate 307 will not conflict with other inclined surfaces;

[0037] See also Figure 7 A first rack 308 is fixedly provided on one side of the skateboard 307. The length of the first rack 308 is substantially the same as that of the skateboard 307. One side of the first rack 308 is meshed with a plurality of first gears 309 that rotatably cooperate with one side of the top of the fixed plate 303. One side of the first gear 309 is meshed with a second gear 310 that is fixedly cooperated with the surface of the first rotating shaft 302. The second gear 310 is disposed in the second groove. When the skateboard 307 moves, it drives the first rack 308 to move, and then drives the first gear 309 and the second gear 310 to rotate, and then drives the first rotating shaft 302 to rotate.

[0038] See also Figure 7-8 One end of the first rotating shaft 302 passes through the first groove and is fixedly provided with a rotating tube 311 that rotates with the inner cavity. A filter screen 312 is fixedly provided on one side of the rotating tube 311. The filter screen 312 prevents large particles of impurities in rain and snow water from entering the rotating tube 311. The filter screen 312 can change the flow direction of part of the rain and snow water so that it is temporarily stored in the rotating tube 311. The surface of the rotating tube 311 and the relative position of the filter screen 312 are provided with openings. The openings can allow the rain and snow water in the rotating tube 311 to flow to the water storage mechanism 4 for long-term storage. In rainy and snowy weather, the first The rotation of the rotating shaft 302 drives the rotating tube 311 to rotate, so that the filter screen 312 rotates accordingly until the filter screen 312 moves to the first groove, that is, the axis center of the filter screen 312 coincides with the axis center of the first groove, and part of the rain and snow water flowing along the water flow trough passes through the first groove and the filter screen 312 into the rotating tube 311 for temporary storage, and then enters the water storage mechanism 4 through the opening for storage. If it is not rainy or snowy weather and water collection is not required, the axis center of the filter screen 312 does not coincide with the axis center of the first groove, that is, the rotating tube 311 is in a closed state.

[0039] See also Figure 6The water storage mechanism 4 includes a water storage box 401 fixedly matched with the surface of the angle adjustment device 2. One end of one side of the water storage box 401 is connected to an intermediate box 403 through a first conduit 402. The intermediate box 403 uniformly collects rain and snow water flowing from each rotating tube 311. One side of the intermediate box 403 is connected to a plurality of second conduits 404 respectively connected to a plurality of inner cavities. When the filter screen 312 moves to the first groove, the axis of the opening coincides with the axis of the second conduit 404. The rain and snow water entering the rotating tube 311 flows through the opening and the second conduit 404 into the middle box 403. The rain and snow water then flows through the first conduit 402 into the water storage box 401 for long-term storage. The water storage box 401 can not only receive rain and snow water in rainy and snowy weather, but is also connected to an external pump body. If the rain and snow water is used up, a new water source can be pumped into the water storage box 401 through the pump body to continue to assist in heat dissipation and cooling of the inverter equipment.

[0040] See also Figure 5 and Figure 9-10 A mounting hole is provided at the center of the other side of the water storage box 401, and a block 405 is fixedly provided in the mounting hole. When installing, the block 405 will pass through the angle adjustment device 2 as needed, which can be achieved by existing technical means and will not be repeated here. A plurality of water guide holes connected to the water storage box 401 are provided on one side of the block 405, and the water guide holes are used to guide the water source in the water storage box 401. A circular groove connected to the water guide hole is provided at one end of the block 405, and an adjusting tube 406 is rotatably provided in the circular groove. A plurality of pairs of second openings are symmetrically provided on the surface of the adjusting tube 406, and the axes of the plurality of pairs of second openings coincide with the axes of the water guide holes, and the aperture of the second opening is the same as that of the water guide holes. A third gear 407 is provided at one end of the adjusting tube 406, and a second gear 407 is meshed with the outer wall of the third gear 407 Rack 408, one end of the second rack 408 is fixedly installed with a second cylinder 409 through a connecting block, and the bottom of the second cylinder 409 is fixedly provided with a third fixing block 410 fixedly matched with the other end of the water storage box 401. When there is no need to dissipate heat and cool the inverter equipment, the axis of the second opening does not coincide with the axis of the water guide hole, that is, the regulating tube 406 will block the water guide hole and prevent the water in the water storage box 401 from flowing out. When it is necessary to perform auxiliary heat dissipation and cooling on the surface of the inverter equipment, the second cylinder 409 is extended and retracted to drive the second rack 408 to move, thereby driving the third gear 407 to rotate, and then driving the regulating tube 406 to rotate, so that the axis of the second opening coincides with the axis of the water guide hole, and the inverter equipment can be prepared for auxiliary heat dissipation and cooling.

[0041] See also Figure 5 and 12A fourth conduit 411 is connected to one end of the water guide hole, a fifth conduit 412 is connected to one end of the fourth conduit 411, the length of the fifth conduit 412 is longer than the length of the inverter device, and a plurality of nozzles 413 are connected to one end of the fifth conduit 412. When the nozzles 413 drip water, the water drops on the surface of the inverter device. When the axis of the second opening coincides with the axis of the water guide hole, the water source in the water storage box 401 enters the regulating pipe 406 through the water guide hole, and then flows through the fourth conduit 411 into the fifth conduit 412. Finally, the water source slowly drips out from the plurality of nozzles 413, continuously falling on the surface of the inverter device, and assists in heat dissipation and cooling of the inverter device.

[0042] Working principle: When it is necessary to shield the inverter device inside the installation frame 1 from rain and snow in rainy and snowy weather, the angle adjustment device 2 is started to drive the shielding cover 301 to rotate to the top of the installation frame 1 and the inverter device, and the rain and snow water falls on the shielding cover 301 and flows downward along the water flow trough to play a shielding role. At the same time, the first cylinder 305 is started to extend or shorten the set distance, drive the first rack 308 to move, and then drive the rotating tube 311 to rotate with the first rotating shaft 302 as the axis, so that the axis of the filter screen 312 coincides with the axis of the first groove, and part of the rain and snow water flowing along the water flow trough flows through the rotating tube 311 and the middle box 403 into the water storage box 401 for storage, so that the rain and snow water is recycled to avoid water resource waste;

[0043] When the inverter device needs to be shielded and assisted in heat dissipation in hot weather, the angle adjustment device 2 is started again to drive the shielding cover 301 to rotate to the top of the installation frame 1 and the inverter device to play a sunshade role, and the second cylinder 409 is started to extend or shorten the set distance, driving the third gear 407 to rotate, and then driving the adjustment tube 406 to rotate, so that the axis of the second opening does not coincide with the axis of the water guide hole. The water source in the water storage box 401 flows through the water guide hole into the fifth conduit 412, and then slowly drips out from the nozzle 413 to the surface of the inverter device. The water continues to flow downward, driving the heat generated by the inverter device when it is working, and plays an auxiliary heat dissipation and cooling effect on the inverter device.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A protective device for an inverter device in a wind farm, comprising a mounting frame (1) for surrounding the inverter device, wherein an angle adjustment device (2) is provided inside the mounting frame (1), and wherein: A shielding mechanism (3) is provided on one side of the angle adjustment device (2), and the angle adjustment device (2) can drive the shielding mechanism (3) to rotate, thereby shading the inverter device and shielding it from rain and snow. A water storage mechanism (4) is provided on one side of the shielding mechanism (3), and the water storage mechanism (4) can store rain and snow water generated in rainy and snowy weather. The shielding mechanism (3) shields the inverter device from sunlight and rain and snow from the top of the installation frame (1), so that rain and snow water can be collected by the shielding mechanism (3) in rainy and snowy weather, and heat and cool the surface of the inverter device in hot weather by the water storage mechanism (4).

2. The protective device for wind farm inverter equipment according to claim 1, characterized in that: The shielding mechanism (3) comprises a shielding cover (301) fixedly matched with one side of the angle adjustment device (2) and a plurality of first rotating shafts (302); the shielding cover (301) is in the shape of a pyramid; a plurality of outer inclined surfaces of the shielding cover (301) are each provided with a plurality of water flow grooves, and the water flow grooves can accelerate the downward flow of rainwater and snowwater.

3. The protective device for wind farm inverter equipment according to claim 2 is characterized in that: A first groove is formed at the bottom of a plurality of the water flow grooves on one of the outer inclined surfaces, an inner cavity is formed at the bottom of the first groove, a fixing plate (303) is fixedly formed at the center of the inner inclined surface of the shielding cover (301) corresponding to the outer inclined surface, and a second groove is formed at one end of the inner inclined surface, a first slide groove is formed at the center of the top of the fixing plate (303), a first cylinder (305) is fixedly mounted on one side of the fixing plate (303) via a first fixing block (304), and a sliding plate (307) slidably matched with the first slide groove is fixedly formed at the output end of the first cylinder (305) via a second fixing block (306); A first rack (308) is fixedly provided on one side of the slide plate (307); a plurality of first gears (309) are meshed on one side of the first rack (308) and are rotatably matched with one side of the top of the fixed plate (303); a second gear (310) is meshed on one side of the first gear (309) and is fixedly matched with the surface of the first rotating shaft (302); and the second gear (310) is arranged in the second groove.

4. The protective device for wind power inverter equipment according to claim 3 is characterized in that: One end of the first rotating shaft (302) passes through the first groove and is fixedly provided with a rotating tube (311) that rotates with the inner cavity. A filter screen (312) is fixedly provided on one side of the rotating tube (311). The filter screen (312) can change the flow direction of part of the rain and snow water so that it is temporarily stored in the rotating tube (311). An opening is provided on the surface of the rotating tube (311) at a position relative to the filter screen (312). The opening allows the rain and snow water in the rotating tube (311) to flow to the water storage mechanism (4) for long-term storage.

5. The protective device for wind farm inverter equipment according to claim 1, characterized in that: The water storage mechanism (4) comprises a water storage box (401) fixedly matched with the surface of the angle adjustment device (2); one end of one side of the water storage box (401) is connected to an intermediate box (403) via a first conduit (402); one side of the intermediate box (403) is connected to a plurality of second conduits (404) respectively connected to a plurality of inner cavities.

6. The protective device for wind power inverter equipment according to claim 5, characterized in that: A mounting hole is provided at the center of the other side of the water storage box (401), and a block (405) is fixedly provided on the mounting hole. A plurality of water guide holes connected to the water storage box (401) are provided on one side of the block (405). A circular groove connected to the water guide holes is provided at one end of the block (405), and an adjusting tube (406) is rotatably provided on the circular groove. A plurality of pairs of second openings are symmetrically provided on the surface of the adjusting tube (406), and the aperture of the second openings is the same as that of the water guide holes. A third gear (407) is sleeved on one end of the adjusting tube (406), and a second rack (408) is meshed on the outer wall of the third gear (407). A second cylinder (409) is fixedly provided on one end of the second rack (408) via a connecting block, and a third fixing block (410) fixedly matched with one end of the other side of the water storage box (401) is fixedly provided at the bottom of the second cylinder (409).

7. The protective device for wind farm inverter equipment according to claim 6, characterized in that: One end of the water guide hole is connected to a fourth conduit (411), one end of the fourth conduit (411) is connected to a fifth conduit (412), and one end of the fifth conduit (412) is connected to a plurality of nozzles (413).

Images