Photovoltaic power generation device with self-cleaning function for hydropower engineering

Abstract

The invention discloses a photovoltaic power generation device with a self-cleaning function for hydropower engineering, and relates to the technical field of photovoltaic power generation, and the photovoltaic power generation device comprises a bottom plate, a rotating device, a wind direction and wind speed sensor, a sectional unfolding device, a sealing device, a water spraying device and a water storage device. The sectional type unfolding device can adjust the unfolding and folding states of the photovoltaic power generation panel according to use requirements, the rotating device can conduct real-time adjustment according to the irradiation angle of sunlight, solar radiation energy can be received to the maximum extent, the photoelectric conversion efficiency is improved, meanwhile, the rotating device rotates in strong wind weather, the windward area of the photovoltaic power generation panel is reduced, and the photovoltaic power generation panel can be folded and unfolded. The water storage device can store rainwater for the water spraying device in rainy days, the water spraying device can spray water mist and cool the photovoltaic power generation panel when the temperature of the photovoltaic power generation panel is too high, and can spray a water curtain and remove dirt on the surface when the photovoltaic power generation panel is used for a long time on the surface of the external photovoltaic power generation panel, and it is ensured that the panel surface keeps high light transmittance all the time.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic power generation, in particular to a photovoltaic power generation device with a self-cleaning function for hydropower engineering. Background Art

[0002] Photovoltaic power generation devices are power generation devices that use the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy. When sunlight shines on semiconductor materials, the energy of photons causes electrons to jump to produce free electrons and holes, forming an electric current. Through appropriate circuit connections, this current is collected and converted into usable electrical energy. The energy of the photovoltaic power generation system comes from inexhaustible solar energy. It is a clean, safe and renewable energy source. The photovoltaic power generation process does not pollute the environment or damage the ecology.

[0003] The existing technology has defects: most of the current photovoltaic power generation devices are fixed on the bracket, and the angle cannot be adjusted. The position cannot be adjusted according to the angle of sunlight, and the power generation efficiency cannot reach the best; in windy weather, due to the large force-bearing area of ​​the photovoltaic power generation device, it is easy to be damaged by the impact of wind; after a period of use, dust will accumulate on the surface of the photovoltaic panel, reducing the contact area between sunlight and the photovoltaic panel, affecting the power generation efficiency. At the same time, after long-term exposure to the sun, the surface temperature of the photovoltaic panel will increase, affecting the power generation efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a photovoltaic power generation device with a self-cleaning function for hydropower engineering to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the photovoltaic power generation device includes a base plate, a rotating device and a wind direction and speed sensor are installed on the base plate, the wind direction and speed sensor is installed on one side of the rotating device, a segmented unfolding device is installed at one end of the rotating device, a sealing device is installed at one end of the segmented unfolding device, a water spraying device is installed on one side of the segmented unfolding device, a water storage device is installed on the base plate, the water spraying device and the water storage device are connected by a pipeline, and the wind direction and speed sensor is connected to the control system. When there is sunlight, the control system controls the segmented unfolding device to start, and the segmented unfolding device gradually unfolds the photovoltaic panels to maximize the effective light-receiving area of ​​the panels. The control system controls the rotation device to start and makes real-time adjustments according to the angle of sunlight, so that the photovoltaic panels automatically rotate to be perpendicular to the sunlight to maximize the reception of solar radiation energy, thereby significantly improving the photoelectric conversion efficiency. When the surface temperature of the photovoltaic panels is too high, the water spraying device is controlled to spray water mist on the surface of the photovoltaic panels to evenly cool the panels. When the wind direction and speed sensors sense an increase in wind force, the segmented unfolding device is controlled to retract, and the rotation device is controlled to rotate to a state consistent with the wind direction, thereby reducing the windward area of ​​the photovoltaic panels.

[0006] The rotating device includes a rotating base, the rotating base is mounted on a bottom plate, a first driving device is rotatably connected to the rotating base, a rotating column is mounted on one side of the rotating base, a rotating ball is rotatably connected to one side of the rotating column, a second driving device is mounted on the rotating ball, a mounting column is connected to the outer surface of the rotating ball, and the segmented deployment device is mounted on the mounting column, and the first driving device and the second driving device are connected to the control system. After the light-chasing sensor senses the angle change of sunlight, the control system controls the second driving device to start, the second driving device drives the rotating ball to rotate, the rotating ball drives the mounting column to rotate, and the mounting column drives the segmented deployment device to rotate, so as to keep the segmented deployment device perpendicular to the sunlight. When the sun turns to the other side, the first driving device is controlled to start, and the first driving device drives the rotating column to rotate 180°. When the wind direction and wind speed sensor senses that the wind force increases, the first driving device drives the rotating column to rotate, and the second driving device drives the rotating ball to rotate until the segmented deployment device is consistent with the wind direction.

[0007] The segmented deployment device comprises an external deployment frame, one side of which is mounted on a mounting column, the sealing device is mounted on one side of the external deployment frame, the internal part of the external deployment frame is slidably connected to a middle deployment frame, and the internal part of the middle deployment frame is slidably connected to an inner deployment frame. The external deployment frame drives the middle deployment frame to slide in the external deployment frame, and the middle deployment frame drives the inner deployment frame to slide in the middle deployment frame.

[0008] The unfolded outer frame includes an outer mounting frame, a light-chasing sensor and a temperature sensor are installed on one side of the outer mounting frame, a mounting block is connected to one side of the outer mounting frame, the mounting block is installed on the mounting column, a first photovoltaic panel is installed on one side of the outer mounting frame, a motor is installed on the outer side of the outer mounting frame, the output shaft of the motor passes through the outer mounting frame and is installed with a screw rod, the unfolded middle frame slides on the screw rod, the inner side of the outer mounting frame is installed with a first guide rail, a first rack and a first cleaning brush, the unfolded middle frame slides in the first guide rail, a mounting groove and a first magnetic strip are provided on one side of the outer mounting frame, a groove is provided in the mounting groove, and the motor, the light-chasing sensor and the temperature sensor are connected to the control system. When there is sunlight, the control system controls the motor to start, the output shaft of the motor drives the screw rod to rotate, the screw rod drives the unfolded middle frame to slide on the screw rod in a direction away from the motor, and the first cleaning brush brushes off the dust and dirt on the surface of the unfolded middle frame.

[0009] The unfolding middle frame includes a middle mounting frame, the middle mounting frame slides on the screw rod, a second photovoltaic panel is installed on one side of the middle mounting frame, a first slider is installed on one side of the middle mounting frame, the first slider slides in the first guide rail, a second guide rail and a second cleaning brush are installed on the inner side of the middle mounting frame, the unfolding inner frame slides in the second guide rail, a rotating groove is provided on one side of the middle mounting frame, a first gear and a second gear are rotatably installed in the rotating groove, a third gear is connected to one side of the first gear, a fourth gear is connected to one side of the second gear, a transmission belt is installed on the outer sides of the third gear and the fourth gear, and the first gear and the second gear are meshed with the first rack. When the motor rotates, the middle mounting frame slides on the screw rod, the first rack drives the first gear to rotate, the first gear drives the third gear to rotate, the third gear drives the transmission belt to rotate, the transmission belt drives the fourth gear to rotate, the fourth gear drives the second gear to rotate, the second gear drives the unfolding inner frame to slide in the second guide rail, and the second cleaning brush brushes off the dust and dirt on the surface of the unfolding inner frame.

[0010] The unfolded inner frame includes an inner mounting frame, a third photovoltaic panel is mounted on one side of the inner mounting frame, a second slider is mounted on one side of the inner mounting frame, the second slider slides in the second guide rail, a second rack is mounted on the outer side of the inner mounting frame, the first gear and the second gear are meshed with the second rack, the second gear drives the second rack to slide, and the second rack drives the second slider to slide in the second guide rail.

[0011] The sealing device includes a sealing plate, one end of which is hinged to the external mounting frame, a second magnetic strip is installed on the other end of the sealing plate, the second magnetic strip has the same size as the first magnetic strip, a fixed plate is installed on one side of the sealing plate, one end of the fixed plate is rotatably connected to a rotating plate, one end of the rotating plate is rotatably connected to a slide plate, the slide plate slides in the groove, one end of the slide plate is installed with a spring, one end of the spring is installed at one end of the groove. When the segmented unfolding device is unfolded, the middle mounting frame drives the sealing plate to rotate around the outer mounting frame, the second magnetic strip is disengaged from the first magnetic strip, the sealing plate drives the fixed plate to rotate around the outer mounting frame, the fixed plate drives the rotating plate to rotate around the fixed plate, the rotating plate drives the slide plate to slide in the groove toward the spring, and the slide plate drives the spring to compress; when the segmented unfolding device is contracted, the spring stretches, and the spring drives the slide plate to slide in the groove away from the spring, the slide plate drives the rotating plate to rotate around the fixed plate, the rotating plate drives the fixed plate to rotate around the outer mounting frame, and the fixed plate drives the sealing plate to rotate around the outer mounting frame; when the sealing plate rotates to the point where the second magnetic strip is close to the first magnetic strip, the second magnetic strip is adsorbed to the first magnetic strip, and the second magnetic strip drives the sealing plate to seal the outer mounting frame to prevent foreign matter from entering and damaging internal parts.

[0012] The water spray device comprises a water spray box, which is mounted on one side of the external mounting frame, and a first water spray chamber and a second water spray chamber are arranged inside the water spray box, and a first water inlet pipe and a second water inlet pipe are mounted on one side of the water spray box, and the first water inlet pipe is connected to the first water spray chamber, and the second water inlet pipe is connected to the second water spray chamber, and an atomizing nozzle and a water curtain nozzle are mounted on the other side of the water spray box, and the atomizing nozzle is connected to the first water spray chamber, and the water curtain nozzle is connected to the second water spray chamber, and the first water inlet pipe and the second water inlet pipe are connected to the water storage device through a pipeline. When the temperature sensor senses that the temperature is too high, the water storage device is controlled to start, and the water storage device sends water to the first water spray chamber through the first water inlet pipe, and sprays water mist from the atomizing nozzle to cool the surface of all photovoltaic panels. When the predetermined time is reached, the water storage device is controlled to start, and the water storage device sends water to the second water spray chamber through the second water inlet pipe, and sprays water curtain from the water curtain nozzle to wash away the dust and dirt on the surface of the first photovoltaic panel.

[0013] The water storage device includes a water tank, which is mounted on a bottom plate, an overflow pipe and a water supply pipe are mounted on the outer wall of the water tank, a filter plate is mounted at the water inlet of the water tank, the filter plate is mounted above the overflow pipe, a water pump is mounted on one side of the water tank, a reversing valve is mounted on one side of the water pump, the first water inlet pipe and the second water inlet pipe are connected to the reversing valve through a pipeline, and the water pump and the reversing valve are connected to a control system. When it rains, the filter plate filters the dust in the rainwater, and the rainwater enters the water tank for storage, and the excess rainwater flows out from the overflow pipe. When the water spraying device needs to be started, the water pump is controlled to start, and the water pump draws water from the water tank to the reversing valve, and the reversing valve is controlled to send water to the water spraying device as needed.

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

[0015] 1. The rotating device of the present invention can rotate in real time according to the angle of sunlight, so that the photovoltaic panels always maintain an ideal angle perpendicular to the sunlight, receive solar radiation energy to the maximum extent, thereby improving the photoelectric conversion efficiency. In windy weather, the angle of the photovoltaic panels can be automatically adjusted to rotate to a state consistent with the wind direction, and the windward area of ​​the photovoltaic panels can be significantly reduced, thereby effectively reducing the pressure caused by wind impact, avoiding structural damage caused by strong winds, and extending the service life;

[0016] 2. The segmented unfolding device of the present invention can flexibly adjust the unfolding and retracting states of the photovoltaic panels according to the use requirements. When there is sunlight, the device can unfold the photovoltaic panels to maximize the effective light-receiving area of ​​the panels, thereby improving the utilization rate of light energy. When there is no sunlight, such as at night or in bad weather, the device can automatically retract the photovoltaic panels to a compact state to reduce their contact area with the external environment. This can not only effectively reduce the wear and impact of external factors such as wind, sand, rain and snow on the photovoltaic panels, but also protect their surfaces from the accumulation of dust and dirt, thus achieving a balance between photovoltaic power generation efficiency and durability.

[0017] 3. The present invention can clean the surface of the internal photovoltaic panels when the segmented deployment device is retracted and deployed, effectively remove dust, dirt and other particulate matter that may affect the power generation efficiency, keep the panel surface clean, and improve the photoelectric conversion efficiency. It can store rainwater on rainy days, spray water mist when the surface temperature of the photovoltaic panels is too high, and evenly cool the panels to prevent the high temperature environment from having an adverse effect on the performance of the components. At the same time, the external photovoltaic panels are sprayed with water curtains at regular intervals to remove dirt on the panel surface through flushing with the water curtain, ensuring that the panel surface always maintains a high light transmittance, thereby improving the reliability and operating efficiency of the photovoltaic power generation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1The photovoltaic power generation device of the present invention is a three-dimensional Figure 1 ;

[0019] Figure 2 The photovoltaic power generation device of the present invention is a three-dimensional Figure 2 ;

[0020] Figure 3 is a three-dimensional diagram of the segmented deployment device of the present invention;

[0021] Figure 4 for Figure 3 A partial enlarged view of the middle A area;

[0022] Figure 5 It is a schematic diagram of the unfolding state of the segmented unfolding device of the present invention;

[0023] Figure 6 A perspective view of an unfolded outer frame of the present invention;

[0024] Figure 7 A perspective view of an unfolded middle frame of the present invention;

[0025] Figure 8 A three-dimensional diagram of an unfolded inner frame of the present invention;

[0026] Fig. 9 It is a three-dimensional diagram of the water spray device of the present invention.

[0027] In the figure: 1, bottom plate; 2, rotating device; 21, rotating base; 22, rotating column; 23, rotating ball; 3, wind direction and wind speed sensor; 4, segmented unfolding device; 41, unfolding outer frame; 4101, outer mounting frame; 4102, motor; 4103, screw rod; 4104, mounting block; 4105, first photovoltaic panel; 4106, first guide rail; 4107, first rack; 4108, mounting groove; 4109, first cleaning brush; 4110, first magnetic strip; 42, unfolding middle frame; 4201, middle mounting frame; 4202, second photovoltaic panel; 4203, first slider; 4204, second guide rail; 4205, rotating groove ; 4206, first gear; 4207, second gear; 4208, transmission belt; 4209, second cleaning brush; 43, unfold inner frame; 4301, inner mounting frame; 4302, third photovoltaic panel; 4303, second slider; 4304, second rack; 5, sealing device; 51, sealing plate; 52, fixed plate; 53, rotating plate; 54, slide plate; 55, spring; 6, water spraying device; 61, water spraying box; 62, first water inlet pipe; 63, second water inlet pipe; 64, atomizing nozzle; 65, water curtain nozzle; 7, water storage device; 71, water storage tank; 72, overflow pipe; 73, water pump; 74, reversing valve; 75, water supply pipe. DETAILED DESCRIPTION

[0028] 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.

[0029] Example: Figure 1-Figure 9 As shown, the present invention provides a technical solution, a photovoltaic power generation device includes a base plate 1, a rotating device 2 and a wind direction and speed sensor 3 are installed on the base plate 1, the wind direction and speed sensor 3 is installed on one side of the rotating device 2, a segmented unfolding device 4 is installed at one end of the rotating device 2, a sealing device 5 is installed at one end of the segmented unfolding device 4, a water spraying device 6 is installed on one side of the segmented unfolding device 4, a water storage device 7 is installed on the base plate 1, the water spraying device 6 and the water storage device 7 are connected by a pipeline, and the wind direction and speed sensor 3 is connected to the control system.

[0030] When there is sunlight, the control system controls the segmented unfolding device 4 to start, and the segmented unfolding device 4 gradually unfolds the photovoltaic panel to maximize the effective light-receiving area of ​​the panel. The control system controls the rotating device 2 to start and make real-time adjustments according to the angle of sunlight exposure, so that the photovoltaic panel automatically rotates to be perpendicular to the sunlight to maximize the reception of solar radiation energy, thereby significantly improving the photoelectric conversion efficiency. When the surface temperature of the photovoltaic panel is too high, the water spraying device 6 is controlled to spray water mist on the surface of the photovoltaic panel to evenly cool the panel. When the wind direction and speed sensor 3 senses an increase in wind force, the segmented unfolding device 4 is controlled to contract, and the rotating device 2 is controlled to rotate to make it rotate to a state consistent with the wind direction, thereby reducing the windward area of ​​the photovoltaic panel.

[0031] The rotating device 2 includes a rotating base 21, which is mounted on the bottom plate 1, and a first driving device is rotatably connected to the rotating base 21. A rotating column 22 is mounted on one side of the rotating base 21, and a rotating ball 23 is rotatably connected to one side of the rotating column 22. A second driving device is mounted on the rotating ball 23, and a mounting column is connected to the outer surface of the rotating ball 23. The segmented deployment device 4 is mounted on the mounting column, and the first driving device and the second driving device are connected to the control system. After the light-chasing sensor senses the angle change of the sunlight, the control system controls the second driving device to start, the second driving device drives the rotating ball 23 to rotate, the rotating ball 23 drives the mounting column to rotate, and the mounting column drives the segmented deployment device 4 to rotate, so as to keep the segmented deployment device 4 perpendicular to the sunlight. When the sun turns to the other side, the first driving device is controlled to start, and the first driving device drives the rotating column 22 to rotate 180°. When the wind direction and wind speed sensor 3 senses that the wind force increases, the first driving device drives the rotating column 22 to rotate, and the second driving device drives the rotating ball 23 to rotate until the segmented deployment device 4 is consistent with the wind direction.

[0032] The segmented deployment device 4 includes an external deployment frame 41, one side of the external deployment frame 41 is mounted on the mounting column, the sealing device 5 is mounted on one side of the external deployment frame 41, the internal of the external deployment frame 41 is slidably connected to the internal deployment frame 42, and the internal of the internal deployment frame 42 is slidably connected to the internal deployment frame 43. The external deployment frame 41 drives the internal deployment frame 42 to slide in the external deployment frame 41, and the internal deployment frame 42 drives the internal deployment frame 43 to slide in the internal deployment frame 42.

[0033] The unfolded outer frame 41 includes an outer mounting frame 4101, one side of the outer mounting frame 4101 is installed with a light chasing sensor and a temperature sensor, one side of the outer mounting frame 4101 is connected with a mounting block 4104, the mounting block 4104 is installed on a mounting column, one side of the outer mounting frame 4101 is installed with a first photovoltaic panel 4105, the outer side of the outer mounting frame 4101 is installed with a motor 4102, the output shaft of the motor 4102 passes through the outer mounting frame 4101 and is installed with a screw rod 4103, the unfolded middle frame 42 slides on the screw rod 4103, the inner side of the outer mounting frame 4101 is installed with a first guide rail 4106, a first rack 4107 and a first cleaning brush 4109, the unfolded middle frame 42 slides in the first guide rail 4106, one side of the outer mounting frame 4101 is provided with a mounting groove 4108 and a first magnetic strip 4110, the mounting groove 4108 is provided with a groove, the motor 4102, the light chasing sensor and the temperature sensor are connected to the control system. When there is sunlight, the control system controls the motor 4102 to start, the output shaft of the motor 4102 drives the screw rod 4103 to rotate, and the screw rod 4103 drives the unfolding middle frame 42 to slide on the screw rod 4103 away from the motor 4102, and the first cleaning brush 4109 brushes off the dust and dirt on the surface of the unfolding middle frame 42.

[0034] The unfolded middle frame 42 includes a middle mounting frame 4201, which slides on the screw rod 4103. A second photovoltaic panel 4202 is installed on one side of the middle mounting frame 4201. A first slider 4203 is installed on one side of the middle mounting frame 4201. The first slider 4203 slides in the first guide rail 4106. A second guide rail 4204 and a second cleaning brush 4209 are installed on the inner side of the middle mounting frame 4201. The unfolded inner frame 43 slides in the second guide rail 4204. A rotating groove 4205 is provided on one side of the middle mounting frame 4201. A first gear 4206 and a second gear 4207 are rotatably installed in the rotating groove 4205. A third gear is connected to one side of the first gear 4206. A fourth gear is connected to one side of the second gear 4207. A transmission belt 4208 is installed on the outer sides of the third gear and the fourth gear. The first gear 4206 and the second gear 4207 are meshed with the first rack 4107.

[0035] When the motor 4102 rotates, the middle mounting frame 4201 slides on the screw rod 4103, the first rack 4107 drives the first gear 4206 to rotate, the first gear 4206 drives the third gear to rotate, the third gear drives the transmission belt 4208 to rotate, the transmission belt 4208 drives the fourth gear to rotate, the fourth gear drives the second gear 4207 to rotate, the second gear 4207 drives the unfolding inner frame 43 to slide in the second guide rail 4204, and the second cleaning brush 4209 brushes off the dust and dirt on the surface of the unfolding inner frame 43.

[0036] The unfolded inner frame 43 includes an inner mounting frame 4301, a third photovoltaic panel 4302 is mounted on one side of the inner mounting frame 4301, a second slider 4303 is mounted on one side of the inner mounting frame 4301, the second slider 4303 slides in the second guide rail 4204, a second rack 4304 is mounted on the outer side of the inner mounting frame 4301, and the first gear 4206 and the second gear 4207 are meshed with the second rack 4304. The second gear 4207 drives the second rack 4304 to slide, and the second rack 4304 drives the second slider 4303 to slide in the second guide rail 4204.

[0037] The sealing device 5 includes a sealing plate 51, one end of which is hinged to the external mounting frame 4101, and a second magnetic strip is installed on the other end of the sealing plate 51. The second magnetic strip has the same size as the first magnetic strip 4110. A fixed plate 52 is installed on one side of the sealing plate 51, and one end of the fixed plate 52 is rotatably connected to a rotating plate 53, and one end of the rotating plate 53 is rotatably connected to a slide plate 54, which slides in the groove, and one end of the slide plate 54 is installed with a spring 55, and one end of the spring 55 is installed at one end of the groove.

[0038] When the segmented unfolding device 4 is unfolded, the middle mounting frame 4201 drives the sealing plate 51 to rotate around the outer mounting frame 4101, the second magnetic strip is separated from the first magnetic strip 4110, the sealing plate 51 drives the fixed plate 52 to rotate around the outer mounting frame 4101, the fixed plate 52 drives the rotating plate 53 to rotate around the fixed plate 52, the rotating plate 53 drives the slide plate 54 to slide in the groove toward the direction close to the spring 55, the slide plate 54 drives the spring 55 to compress, and when the segmented unfolding device 4 is contracted, the spring 55 is stretched, and the spring 55 brings The movable slide plate 54 slides in the groove in the direction away from the spring 55, and the slide plate 54 drives the rotating plate 53 to rotate around the fixed plate 52, and the rotating plate 53 drives the fixed plate 52 to rotate around the outer mounting frame 4101, and the fixed plate 52 drives the sealing plate 51 to rotate around the outer mounting frame 4101. When the sealing plate 51 rotates to the point where the second magnetic strip is close to the first magnetic strip 4110, the second magnetic strip is attracted to the first magnetic strip 4110, and the second magnetic strip drives the sealing plate 51 to seal the outer mounting frame 4101 to prevent foreign matter from entering and damaging internal parts.

[0039] The water spray device 6 includes a water spray box 61, which is installed on one side of the external mounting frame 4101. A first water spray chamber and a second water spray chamber are arranged inside the water spray box 61. A first water inlet pipe 62 and a second water inlet pipe 63 are installed on one side of the water spray box 61. The first water inlet pipe 62 is connected to the first water spray chamber, and the second water inlet pipe 63 is connected to the second water spray chamber. An atomizing nozzle 64 and a water curtain nozzle 65 are installed on the other side of the water spray box 61. The atomizing nozzle 64 is connected to the first water spray chamber, and the water curtain nozzle 65 is connected to the second water spray chamber. The first water inlet pipe 62 and the second water inlet pipe 63 are connected to the water storage device 7 through a pipeline. When the temperature sensor senses that the temperature is too high, the water storage device 7 is controlled to start, and the water storage device 7 sends water to the first water spray chamber through the first water inlet pipe 62, and sprays water mist from the atomizing nozzle 64 to cool the surfaces of all photovoltaic panels. When the predetermined time is reached, the water storage device 7 is controlled to start, and the water storage device 7 sends water to the second water spray chamber through the second water inlet pipe 63, and sprays a water curtain from the water curtain nozzle 65 to wash away the dust and dirt on the surface of the first photovoltaic panel 4105.

[0040] The water storage device 7 includes a water tank 71, which is mounted on the bottom plate 1. An overflow pipe 72 and a water supply pipe 75 are mounted on the outer wall of the water tank 71. A filter plate is mounted at the water inlet of the water tank 71, and the filter plate is mounted above the overflow pipe 72. A water pump 73 is mounted on one side of the water tank 71, and a reversing valve 74 is mounted on one side of the water pump 73. The first water inlet pipe 62 and the second water inlet pipe 63 are connected to the reversing valve 74 through a pipeline, and the water pump 73 and the reversing valve 74 are connected to the control system. When it rains, the filter plate filters the dust in the rainwater, and the rainwater enters the water tank 71 for storage, and the excess rainwater flows out from the overflow pipe 72. When the water spraying device 6 needs to be started, the water pump 73 is controlled to start, and the water pump 73 pumps water from the water tank 71 to the reversing valve 74, and the reversing valve 74 is controlled to send water to the water spraying device 6 as needed.

[0041] Working principle of the present invention:

[0042] When the light-chasing sensor senses sunlight, the control system controls the motor 4102 to start, the output shaft of the motor 4102 drives the screw rod 4103 to rotate, the screw rod 4103 drives the middle mounting frame 4201 to slide on the screw rod 4103 away from the motor 4102, the first cleaning brush 4109 brushes off the dust and dirt on the surface of the second photovoltaic panel 4202, the first rack 4107 drives the first gear 4206 to rotate, the first gear 4206 drives the third gear to rotate, the third gear drives the transmission belt 4208 to rotate, the transmission belt 4208 drives the fourth gear to rotate, the fourth gear drives the second gear 4207 to rotate, the second gear 4207 drives the second rack 4304 to slide, and the second rack 4304 drives the second slider 4303 on the second guide rail 4204 slides inside, the second slider 4303 drives the inner mounting frame 4301 to slide away from the motor 4102, the second cleaning brush 4209 brushes off the dust and dirt on the surface of the third photovoltaic panel 4302, the middle mounting frame 4201 drives the sealing plate 51 to rotate around the outer mounting frame 4101, the second magnetic strip is separated from the first magnetic strip 4110, the sealing plate 51 drives the fixed plate 52 to rotate around the outer mounting frame 4101, the fixed plate 52 drives the rotating plate 53 to rotate around the fixed plate 52, the rotating plate 53 drives the slide plate 54 to slide in the groove toward the direction close to the spring 55, the slide plate 54 drives the spring 55 to compress, until the second photovoltaic panel 4202 slides to be completely exposed to the outside world, at which time the third photovoltaic panel 4302 just slides to be completely exposed to the outside world.

[0043] When the light-chasing sensor senses the change in the angle of sunlight, the control system controls the second driving device to start, the second driving device drives the rotating ball 23 to rotate, the rotating ball 23 drives the mounting column to rotate, and the mounting column drives the segmented unfolding device 4 to rotate. When the sun turns to the other side, the first driving device is controlled to start, and the first driving device drives the rotating column 22 to rotate 180°, so that the first photovoltaic panel 4105, the second photovoltaic panel 4202 and the third photovoltaic panel 4302 remain perpendicular to the sunlight, thereby maximizing the effective light-receiving area of ​​the panels and improving the utilization rate of light energy.

[0044] In the absence of sunlight, such as at night or in bad weather, the control system controls the motor 4102 to start, the output shaft of the motor 4102 drives the screw rod 4103 to rotate in the opposite direction, the screw rod 4103 drives the middle mounting frame 4201 to slide on the screw rod 4103 in the direction close to the motor 4102, the first cleaning brush 4109 brushes off the dust and dirt on the surface of the second photovoltaic panel 4202, the first rack 4107 drives the first gear 4206 to rotate, the first gear 4206 drives the third gear to rotate, the third gear drives the transmission belt 4208 to rotate, the transmission belt 4208 drives the fourth gear to rotate, the fourth gear drives the second gear 4207 to rotate, the second gear 4207 drives the second rack 4304 to slide, and the second rack 4304 drives the second slider 4303 in the first The second guide rail 4204 slides inside, and the second slider 4303 drives the inner mounting frame 4301 to slide in the direction close to the motor 4102. At this time, the second cleaning brush 4209 brushes off the dust and dirt on the surface of the third photovoltaic panel 4302, and the spring 55 is stretched. The spring 55 drives the slide plate 54 to slide in the groove in the direction away from the spring 55, and the slide plate 54 drives the rotating plate 53 to rotate around the fixed plate 52, and the rotating plate 53 drives the fixed plate 52 to rotate around the outer mounting frame 4101, and the fixed plate 52 drives the sealing plate 51 to rotate around the outer mounting frame 4101. When the unfolded middle frame 42 and the unfolded inner frame 43 are retracted to the initial position, the second magnetic strip is adsorbed with the first magnetic strip 4110, and the second magnetic strip drives the sealing plate 51 to seal the outer mounting frame 4101 to prevent foreign matter from entering and damaging internal parts.

[0045] When the wind direction and wind speed sensor 3 senses that the wind force increases to a predetermined value, the control system controls the segmented unfolding device 4 to retract, controls the first driving device to start, the first driving device drives the rotating column 22 to rotate, controls the second driving device to start, the second driving device drives the rotating ball 23 to rotate, the rotating ball 23 drives the installation column to rotate, and the installation column drives the segmented unfolding device 4 to rotate until the segmented unfolding device 4 is consistent with the wind direction.

[0046] When it rains, the filter plate filters the dust in the rainwater, and the rainwater enters the water storage tank 71 for storage, and the excess rainwater flows out from the overflow pipe 72. When it does not rain for a long time and the water in the water storage tank 71 is lower than the predetermined water level, water can be replenished from another water source through the water replenishment pipe 75 to the water storage tank 71. When the temperature sensor senses that the temperature is too high, the water pump 73 is controlled to start, and the water pump 73 pumps water from the water storage tank 71 to the reversing valve 74, and the reversing valve 74 is controlled to send the water to the first water spraying chamber through the first water inlet pipe 62, and then the water is sprayed from the atomizing nozzle. Water mist is sprayed from 64 to cool the surface of all photovoltaic panels. When the predetermined time is reached, the segmented unfolding device 4 contracts and the water pump 73 is controlled to start. The water pump 73 draws water from the water storage tank 71 to the reversing valve 74. The reversing valve 74 is controlled to send water to the second water spraying chamber through the second water inlet pipe 63. A water curtain is sprayed from the water curtain nozzle 65 to wash away the dust and dirt on the surface of the first photovoltaic panel 4105, ensuring that the panel surface always maintains a high light transmittance, thereby improving the reliability and operation efficiency of the photovoltaic power generation system.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A photovoltaic power generation device with self-cleaning function for hydropower engineering, characterized in that: The photovoltaic power generation device comprises a base plate (1), a rotating device (2) and a wind direction and speed sensor (3) are mounted on the base plate (1), the wind direction and speed sensor (3) is mounted on one side of the rotating device (2), a segmented deployment device (4) is mounted on one end of the rotating device (2), a sealing device (5) is mounted on one end of the segmented deployment device (4), a water spray device (6) is mounted on one side of the segmented deployment device (4), a water storage device (7) is mounted on the base plate (1), the water spray device (6) and the water storage device (7) are connected via a pipeline, and the wind direction and speed sensor (3) is connected to a control system.

2. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 1, characterized in that: The rotating device (2) comprises a rotating base (21), the rotating base (21) is mounted on the bottom plate (1), a first driving device is rotatably connected to the rotating base (21), a rotating column (22) is mounted on one side of the rotating base (21), a rotating ball (23) is rotatably connected to one side of the rotating column (22), a second driving device is mounted on the rotating ball (23), a mounting column is connected to the outer surface of the rotating ball (23), the segmented unfolding device (4) is mounted on the mounting column, and the first driving device and the second driving device are connected to a control system.

3. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 2, characterized in that: The segmented unfolding device (4) comprises an unfolding outer frame (41), one side of the unfolding outer frame (41) is mounted on a mounting column, the sealing device (5) is mounted on one side of the unfolding outer frame (41), the inside of the unfolding outer frame (41) is slidably connected to an unfolding middle frame (42), and the inside of the unfolding middle frame (42) is slidably connected to an unfolding inner frame (43).

4. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 3, characterized in that: The unfolded outer frame (41) comprises an outer mounting frame (4101), a light tracking sensor and a temperature sensor are installed on one side of the outer mounting frame (4101), a mounting block (4104) is connected to one side of the outer mounting frame (4101), and the mounting block (4104) is installed on a mounting column, a first photovoltaic power generation panel (4105) is installed on one side of the outer mounting frame (4101), a motor (4102) is installed on the outer side of the outer mounting frame (4101), and an output shaft of the motor (4102) passes through the outer mounting frame (4101) and is installed with a screw rod (4105). 103), the unfolded middle frame (42) slides on the screw rod (4103), the inner side of the outer mounting frame (4101) is installed with a first guide rail (4106), a first rack (4107) and a first cleaning brush (4109), the unfolded middle frame (42) slides in the first guide rail (4106), one side of the outer mounting frame (4101) is provided with a mounting groove (4108) and a first magnetic strip (4110), a groove is provided in the mounting groove (4108), and the motor (4102), the light tracking sensor and the temperature sensor are connected to the control system.

5. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 4, characterized in that: The unfolded middle frame (42) comprises a middle mounting frame (4201), the middle mounting frame (4201) slides on the screw rod (4103), a second photovoltaic panel (4202) is installed on one side of the middle mounting frame (4201), a first slider (4203) is installed on one side of the middle mounting frame (4201), the first slider (4203) slides in the first guide rail (4106), a second guide rail (4204) and a second cleaning brush (4209) are installed on the inner side of the middle mounting frame (4201), and the unfolded inner frame (43) is installed on the first guide rail (4106). The middle mounting frame (4201) slides in the second guide rail (4204), a rotating groove (4205) is provided on one side of the middle mounting frame (4201), a first gear (4206) and a second gear (4207) are rotatably installed in the rotating groove (4205), a third gear is connected to one side of the first gear (4206), a fourth gear is connected to one side of the second gear (4207), a transmission belt (4208) is installed on the outer sides of the third gear and the fourth gear, and the first gear (4206) and the second gear (4207) are meshed with the first rack (4107).

6. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 5, characterized in that: The unfolded inner frame (43) includes an inner mounting frame (4301), a third photovoltaic panel (4302) is mounted on one side of the inner mounting frame (4301), a second slider (4303) is mounted on one side of the inner mounting frame (4301), the second slider (4303) slides in the second guide rail (4204), a second rack (4304) is mounted on the outer side of the inner mounting frame (4301), and the first gear (4206) and the second gear (4207) are meshed with the second rack (4304).

7. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 6, characterized in that: The sealing device (5) comprises a sealing plate (51), one end of which is hinged to the external mounting frame (4101), and a second magnetic strip is mounted on the other end of the sealing plate (51), wherein the second magnetic strip has the same size as the first magnetic strip (4110), and a fixed plate (52) is mounted on one side of the sealing plate (51), and one end of the fixed plate (52) is rotatably connected to a rotating plate (53), and one end of the rotating plate (53) is rotatably connected to a slide plate (54), and the slide plate (54) slides in the groove, and one end of the slide plate (54) is mounted with a spring (55), and one end of the spring (55) is mounted at one end of the groove.

8. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 7, characterized in that: The water spray device (6) comprises a water spray box (61), the water spray box (61) being mounted on one side of the external mounting frame (4101), the interior of the water spray box (61) being provided with a first water spray chamber and a second water spray chamber, a first water inlet pipe (62) and a second water inlet pipe (63) being mounted on one side of the water spray box (61), the first water inlet pipe (62) being connected to the first water spray chamber, the second water inlet pipe (63) being connected to the second water spray chamber, an atomizing nozzle (64) and a water curtain nozzle (65) being mounted on the other side of the water spray box (61), the atomizing nozzle (64) being connected to the first water spray chamber, the water curtain nozzle (65) being connected to the second water spray chamber, the first water inlet pipe (62) and the second water inlet pipe (63) being connected to the water storage device (7) via a pipeline.

9. A photovoltaic power generation device with self-cleaning function for hydropower engineering according to claim 8, characterized in that: The water storage device (7) comprises a water storage tank (71), the water storage tank (71) is mounted on the bottom plate (1), an overflow pipe (72) and a water supply pipe (75) are mounted on the outer wall of the water storage tank (71), a filter plate is mounted at the water inlet of the water storage tank (71), the filter plate is mounted above the overflow pipe (72), a water pump (73) is mounted on one side of the water storage tank (71), a reversing valve (74) is mounted on one side of the water pump (73), the first water inlet pipe (62) and the second water inlet pipe (63) are connected to the reversing valve (74) through a pipeline, and the water pump (73) and the reversing valve (74) are connected to a control system.

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