Tower type photovoltaic power generation device

Abstract

The application belongs to the technical field of solar photovoltaic power generation, and particularly relates to a tower type photovoltaic power generation device, which comprises a tower, a heliostat and a receiver, the tower is vertically installed on the ground, the receiver is fixedly installed on the top of the tower, the number of the heliostats is multiple, the multiple heliostats are sequentially arranged on the ground, and the tower is arranged at the middle position in the multiple heliostats; the controller is used for controlling the power supply to pass through a group of electric conductors to electrify the electromagnetic ring plate, the electromagnetic ring plate emits the magnetism to repel the dust wiping magnetic plate, the dust wiping magnetic plate is driven by the magnetic repulsion force of the electromagnetic ring plate to move the slag scraping block downward, the slag scraping block scrapes and wipes the receiver and the wind measuring ring when moving, the dirt and dust on the surface of the receiver and the wind measuring ring are wiped off, the function of cleaning dirt is achieved, and the flying sand and dust falling on the surface of the receiver is prevented from affecting the receiver to receive the light reflected by the heliostat, so that the photovoltaic power generation operation is more favorable.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of solar photovoltaic power generation, and particularly relates to a tower type photovoltaic power generation device. BACKGROUND

[0002] The tower type photovoltaic power generation device is a system for generating power by using solar energy, which mainly comprises a large number of heliostats (large solar reflectors), a high tower and a receiver at the top of the tower. The heliostats can automatically track the movement of the sun, reflect and concentrate the sunlight onto the receiver at the top of the tower, and the heat transfer medium in the receiver is heated under the irradiation of the sunlight, thereby generating high-temperature steam or other forms of heat energy, which is then used to drive a steam turbine to generate power.

[0003] A Chinese patent with the publication number CN117478036A discloses a tower type photovoltaic power generation device and a complete set thereof, which comprises a plurality of first photovoltaic panels and second photovoltaic panels vertically installed through a stand column, and the first photovoltaic panels are arranged below the second photovoltaic panels, so that the first photovoltaic panels and the second photovoltaic panels are vertically arranged, thereby reducing the occupation of horizontal space and increasing the utilization rate of vertical space, and the installation and use are more convenient; a plurality of reflecting panels are arranged, each reflecting panel corresponds to a first photovoltaic panel, and the reflecting panels are used for reflecting light to the first photovoltaic panels, so that the first photovoltaic panels below the second photovoltaic panels can also generate power, and one or more reflecting panels reflect sunlight during the movement of the sun from east to west, so that one or more first photovoltaic panels always receive sunlight, thereby further improving the power generation efficiency and the structural compactness of the entire device.

[0004] At present, in the prior art, the tower type photovoltaic power generation device is often installed in deserts, gobi and other open areas. The climate conditions in these places are conducive to the collection and utilization of solar energy. Since the deserts, gobi and other open areas are relatively dry and have large differences in day and night temperatures, there are more flying dust and flying sand, which are easily carried by air currents and fall on the receiver at the top of the tower to form dirt, affecting the receiver to receive the sunlight reflected by the heliostats, and being not conducive to photovoltaic power generation.

[0005] Therefore, the application provides a tower type photovoltaic power generation device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the tower type photovoltaic power generation equipment comprises a tower, a heliostat and a receiver, the tower is vertically installed on the ground, the receiver is fixedly installed on the top of the tower, the number of the heliostat is multiple, the multiple heliostats are sequentially arranged on the ground, the tower is arranged at the middle position in the multiple heliostats, the top end of the receiver is provided with a cleaning brush assembly, the cleaning brush assembly comprises a dust wiping magnetic plate, and the dust wiping magnetic plate wipes the flying sand and dust falling on the surface of the receiver;

[0008] By selecting a relatively wide desert, gobi and other areas as the placement area, the receiver is fixedly installed on the top of the tower, then the tower is arranged at the middle position of the placement area, and a plurality of heliostats are sequentially and regularly arranged around the tower through angle measurement calculation, so that the reflecting surface of the plurality of heliostats and the receiving end of the receiver are in a state of reflection and reception. When the two are arranged, photovoltaic power generation operation can be carried out. When the photovoltaic power generation operation is carried out, because the difference between day and night in the desert, gobi and other areas is large, dew is easily formed on the receiver at night. When the external wind is too large, the airflow will drive the flying dust and sand in the air to float. When the airflow drives the flying dust and sand to fall on the receiver, the flying dust and sand will be attached to the dew on the receiver to form dirt on the receiver. At this time, the cleaning brush assembly arranged at the top end of the receiver works. The cleaning brush assembly drives the dust wiping magnetic plate to wipe the flying sand and dust falling on the surface of the receiver, so as to prevent the flying sand and dust falling on the surface of the receiver from affecting the receiving operation of the receiver to the light reflected by the heliostat, and to facilitate the operation.

[0009] Preferably, the detection assembly comprises a wind ring, the number of the wind ring is two, the two wind rings are symmetrically fixedly installed at the two ends of the receiver, a controller is fixedly installed in the inside of each of the two wind rings, a plurality of sensing lines are fixedly installed on the outer wall of the controller, a detector is arranged between the controller and the inner wall of the wind ring, one end of the plurality of sensing lines is fixedly connected with the outer wall of the detector, and the detector detects the two ends of the receiver when working. When the detector detects that airflow surges at the two ends of the receiver, the detector transmits the detected information into the controller through the sensing line. Then, the detector continuously detects the external airflow. When the detector detects that the airflow at the two ends of the receiver disappears, the controller controls the cleaning brush assembly to drive the dust wiping magnetic plate to wipe the surface of the receiver, so as to prevent dust and dirt from falling on the receiving surface of the receiver due to the airflow. By implanting a command in the controller, the controller controls the cleaning brush assembly to wipe the receiving surface of the receiver once every day and night, so as to wipe the dew on the receiving surface of the receiver, prevent the dew from reducing the temperature of the sunlight reflected by the heliostat, affect the absorption of the sunlight heat by the receiver, effectively improve the operation efficiency of the receiver, and better monitor the airflow around the receiver through the detection of the detector.

[0010] Preferably, the inner wall of the two wind rings is provided with a plurality of air inlets, when there is airflow outside, the airflow enters the wind ring through the air inlet on the wind ring, and then the detector detects the airflow entering it. By providing a plurality of air inlets on the outer wall of the wind ring, the detector can detect the entire receiver, and the detection is performed without dead angle.

[0011] Preferably, the cleaning assembly includes a ring holder fixedly installed on the top of one of the wind rings, a power supply is fixedly installed in the inner wall of the ring holder, an electromagnetic ring plate is fixedly installed on the top of the outer wall of the ring holder, a plurality of electric wires are fixedly installed between the electromagnetic ring plate and the power supply, a dust wiping magnet plate is arranged below the electromagnetic ring plate, a slag scraping block is fixedly installed on the inner ring wall of the dust wiping magnet plate, and the slag scraping block is slidingly connected with the receiver and the outer wall of the two wind rings. When cleaning dirt, the controller controls the power supply to energize the electromagnetic ring plate through one group of electric wires, the electromagnetic ring plate emits a magnetic field to repel the dust wiping magnet plate, and the dust wiping magnet plate is moved downward under the magnetic repulsion of the electromagnetic ring plate. When moving, the slag scraping block scrapes and wipes the receiver and the wind ring, removes the dirt and dust on the surface of the receiver and the wind ring, and plays a role of cleaning dirt.

[0012] Preferably, the bottom of the other wind ring is fixedly installed on the slag setting box, the bottom of the slag setting box is fixedly installed with an air extractor, and the slag setting box and the air extractor are fixedly installed outside the tower. A plurality of air extraction pipes are fixedly installed between the slag setting box and the air extractor. When the dust wiping magnet plate scrapes dirt off the top of the slag setting box, the air extractor extracts air from the slag setting box through the air extraction pipe. The dirt wiped off by the slag scraping block is drawn into the slag setting box by the air extraction force of the air extractor, and is collected, playing a role of collecting dirt. After the slag scraping block is cleaned, dirt adheres to the slag scraping block. During the subsequent light collection process of the receiver, the dirt dries and adheres to the slag scraping block, which is not conducive to subsequent cleaning operations.

[0013] Preferably, the inner wall of the residue box is slidingly connected with a plurality of pressing shafts at the top, the inner wall of the residue box is provided with a plug ring, the outer ring wall of the plug ring is fixedly connected with the outer walls of the plurality of pressing shafts, the space between the plurality of pressing shafts and the inner wall of the residue box is provided with a pressure spring, the outer wall of each of the plurality of pressing shafts is fixedly installed with a dust baffle, and the plurality of dust baffles are slidingly connected with the inner wall of the residue box. When the dust wiping magnetic plate is lowered to a certain position, the bottom of the dust wiping magnetic plate extrudes the pressing shaft on the top of the residue box, the pressing shaft is pressed to extrude the pressure spring and drive the plug ring to move down from the top of the inner wall of the residue box, and the opening at the top of the residue box is opened. At this time, the dust extraction force of the dust extractor is used to move the dirt on the residue scraping block, and the dirt is brought into the residue box for collection under the action of the dust extraction force. When the dust wiping magnetic plate is moved away from the top of the residue box, the plug ring is reset under the elastic force of the pressure spring to block the opening at the top of the residue box, so that the dirt in the residue box is not affected by the airflow after drying and does not fall out of the opening at the top of the residue box and fall on the receiver and the wind ring, affecting the operation.

[0014] Preferably, the top of the residue box is fixedly installed with a plurality of residue falling pipes, the plurality of residue falling pipes are through pipes, the bottom of the residue box and the top of the dust extractor are fixedly installed with a residue limiting ring disc, and one end of each of the plurality of residue falling pipes is arranged at the bottom of the residue limiting ring disc. When the dirt falls into the residue box, since the dust extractor is provided with a plurality of dust extraction pipes for extracting wind power through the dust extraction pipes, the dirt extracted by the dust extractor is divided into a plurality of small dirt blocks during extraction, and the dirt blocks are hardened by continuous extraction of the dust extractor. The hardened dirt blocks slide from the inner wall of the residue box to the bottom of the residue box through the arc surface arrangement in the residue box, and finally flow out of the residue box to the outside of the residue box through the residue falling pipes, and then fall to the outside of the tower through the limitation of the residue limiting ring disc. Since the height of the tower is too high, the dirt is prevented from accumulating too much in the residue box, and the operator needs to frequently pour it out.

[0015] Preferably, the outer wall of the ring frame is fixedly provided with a plurality of inner groove boxes, the inner walls of the plurality of inner groove boxes are fixedly provided with a group of shaft rods, one end of the group of shaft rods is slidably connected with a clamping block, one side of the clamping block and the inner wall of the inner groove box are provided with a group of return springs, the group of return springs are arranged outside the group of shaft rods, the inner wall of the dust wiping magnetic plate is provided with a plurality of notches, and the plurality of clamping blocks can be clamped with the inner walls of the plurality of notches respectively. When the dust wiping magnetic plate drives the slag wiping scraper to complete the wiping operation, the controller controls the power supply to change the current direction, the power supply is powered from the other group of electric wires to the electromagnetic ring plate, the electromagnetic ring plate changes the magnetism, the dust wiping magnetic plate is pulled, the dust wiping magnetic plate moves upwards from the top of the slag placing box, when the dust wiping magnetic plate moves to a certain position, the dust wiping magnetic plate extrudes the clamping block to move in the inner groove box, when the dust wiping magnetic plate is reset, the clamping block is clamped into the notch in the dust wiping magnetic plate under the thrust of the return spring, the dust wiping magnetic plate is clamped, and the dust wiping magnetic plate is arranged at the bottom of the electromagnetic ring plate when the power supply is powered off, so that the initial state is maintained, the light collecting operation of the receiver is not affected, the dust wiping magnetic plate is clamped by the clamping block, the dust wiping magnetic plate can be kept stationary when the cleaning brush assembly is not working, so that the power in the power supply is saved, and resources can be saved.

[0016] Preferably, the top of the electromagnetic ring plate is fixedly provided with an arc sliding plate, the electromagnetic ring plate and the dust wiping magnetic plate are arranged in the arc sliding plate, and the top of the arc sliding plate is a curved sliding surface. When it rains and snows, the arc sliding plate can block the rain and snow, prevent the rain and snow from falling on the receiver, and play a shielding role. By arranging the electromagnetic ring plate and the dust wiping magnetic plate in the arc sliding plate, the two are protected and the receiver is prevented from being affected.

[0017] Preferably, the bottom of the arc sliding plate is fixedly provided with a light folding device, and the light folding device is a dust blocking light folding device. When the heliostat moves during positioning and capturing of the sun, the angle between the heliostat and the receiver changes. When the heliostat rotates, the sunlight refracted by the heliostat always irradiates on the receiver, so that the light is assisted to converge.

[0018] The beneficial effects of the application are as follows:

[0019] 1. The tower type photovoltaic power generation equipment controls the power supply to power the electromagnetic ring plate through one group of electric wires, the electromagnetic ring plate emits magnetism to repel the dust wiping magnetic plate, the dust wiping magnetic plate is driven by the magnetic repulsion of the electromagnetic ring plate to move downwards, the slag wiping scraper moves downwards to wipe the receiver and the wind measuring ring, the dirt and dust on the receiver and the wind measuring ring are wiped off, the receiver surface and the wind measuring ring are cleaned, the flying sand and dust falling on the receiver surface are prevented from affecting the receiver to receive the light reflected by the heliostat, and the photovoltaic power generation operation is more beneficial.

[0020] 2. The tower type photovoltaic power generation equipment, when the detector detects that there is airflow surge at both ends of the receiver, the detector transmits the detected information to the controller through the sensing line, then the detector continues to detect the external airflow, when the detector detects that the airflow at both ends of the receiver disappears, the controller controls the cleaning and brushing assembly to drive the dust wiping magnetic plate to wipe the surface of the receiver, so as to prevent the receiving surface of the receiver from being driven by the airflow and falling with dust and dirt, by implanting a command in the controller, the controller controls the cleaning and brushing assembly to wipe the receiving surface of the receiver once at the time of day and night, so as to wipe off the dew on the receiving surface of the receiver, prevent the dew from reducing the temperature of the sunlight reflected by the heliostat, affect the absorption of the sunlight heat by the receiver, effectively improve the working efficiency of the receiver, and better monitor the airflow around the receiver by the detector detecting both ends of the receiver.

[0021] 3. The tower type photovoltaic power generation equipment, when the dirt falls into the residue box, the air extractor divides the dirt into a plurality of small dirt blocks through a plurality of air extraction pipes, the dirt blocks are hardened and dried by the continuous pumping of the air extractor, then the hardened dirt blocks slide from the inner wall of the residue box to the bottom of the residue box through the arc surface arrangement in the residue box, and finally flow out of the residue box from the residue falling pipe to the outside of the tower, then the dirt falling on the outside of the tower is limited by the residue limiting ring disc, since the height of the tower is too high, the dirt is prevented from accumulating too much in the residue box, and the operator needs to frequently pour out the dirt, so that the manpower can be saved.

[0022] 4. The tower type photovoltaic power generation equipment, when the power supply member supplies power to the electromagnetic ring plate from another group of electric conductors, the electromagnetic ring plate changes the magnetism and pulls the dust wiping magnetic plate upward, the dust wiping magnetic plate moves upward and squeezes the clamping block to move in the inner groove box, when the dust wiping magnetic plate is reset, the clamping block is clamped into the slot in the dust wiping magnetic plate under the pushing force of the reset spring, so as to clamp the dust wiping magnetic plate, when the power supply member is powered off, the dust wiping magnetic plate is also placed at the bottom of the electromagnetic ring plate, maintains the initial state, does not affect the light collecting operation of the receiver, and at the same time, the dust wiping magnetic plate can also remain stationary when the cleaning and brushing assembly is not working, so that the power in the power supply member is saved, and resources are saved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in combination with the drawings.

[0024] Figure 1 is the main body diagram of the application;

[0025] Figure 2 is the overall diagram of the application;

[0026] Figure 3This is a schematic diagram of the air inlet structure in this invention;

[0027] Figure 4 This is a structural schematic diagram of the inner groove box in this invention;

[0028] Figure 5 This is a schematic diagram of the detector structure in this invention;

[0029] Figure 6 This is a schematic diagram of the structure of the card block in this invention;

[0030] Figure 7 This is a schematic diagram of the structure at the slot in this invention;

[0031] Figure 8 This is a schematic diagram of the structure of the slag discharge pipe in this invention;

[0032] Figure 9 This is a schematic diagram of the structure at the pressure shaft in this invention;

[0033] Figure 10 This is a schematic diagram of the arc-shaped sliding plate in this invention.

[0034] In the diagram: 1. Tower; 2. Heliostat; 3. Arc slide plate; 4. Receiver; 5. Wind measuring ring; 6. Slag limiting ring plate; 7. Exhaust fan; 8. Dust wiping magnetic plate; 9. Electromagnetic ring plate; 10. Air inlet; 11. Exhaust pipe; 12. Slag box; 13. Controller; 14. Power supply component; 15. Inner tank box; 16. Detector; 17. Ring frame; 18. Clamping block; 19. Slag wiping scraper; 20. Return spring; 21. Shaft; 22. Slot opening; 23. Slag discharge pipe; 24. Pressure shaft; 25. Pressure spring; 26. Blocking ring; 27. Dust baffle plate; 28. Refractometer; 29. ​​Electrical conductor; 30. Sensor wire. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0036] like Figures 1 to 10 As shown, the embodiment of the present invention includes a tower 1, a heliostat 2, and a receiver 4. The tower 1 is vertically installed on the ground, and the receiver 4 is fixedly installed on the top of the tower 1. There are multiple heliostats 2, which are arranged sequentially on the ground. The tower 1 is located in the middle of the multiple heliostats 2. A cleaning component is provided at the top of the receiver 4. The cleaning component includes a dust-wiping magnetic plate 8, which wipes off the flying sand and dust that fall on the surface of the receiver 4.

[0037] The tower type photovoltaic power generation device is arranged in a desert, a gobi or the like, and dust and dirt are easily attached to the receiver, which easily affects the receiver to receive the sunlight reflected by the heliostat 2.

[0038] The receiver 4 is fixedly installed on the top of the tower 1, and then the tower 1 is arranged at the middle position of the arrangement area. A plurality of heliostats 2 are regularly arranged around the tower 1 by angle measurement calculation, so that the reflecting surface of the heliostat 2 and the receiving end of the receiver 4 are in a state of reflection and reception. When the two are arranged, photovoltaic power generation operation can be performed. Since the desert, gobi and the like have large day and night differences, dew is easily formed on the receiver 4 at night. When the external wind is too large, the airflow will drive the dust and sand in the air to float. When the airflow drives the dust and sand to blow on the receiver 4, the dust and sand will be attached to the dew on the receiver 4 to form dirt on the receiver 4. At this time, the cleaning assembly arranged at the top end of the receiver 4 operates, and the dust removal magnetic plate 8 drives the dust and sand falling on the surface of the receiver 4 to fall off, so as to prevent the dust and sand falling on the surface of the receiver 4 from affecting the receiver 4 to receive the light reflected by the heliostat 2, and facilitate operation.

[0039] As shown in Figures 3 to 5 The detection assembly includes a wind measuring ring 5. The number of the wind measuring ring 5 is two, and the two wind measuring rings 5 are symmetrically fixedly installed at both ends of the receiver 4. The controller 13 is fixedly installed in the inside of the two wind measuring rings 5. The outer wall of the controller 13 is fixedly installed with a plurality of sensing lines 30. The detector 16 is arranged between the controller 13 and the inner wall of the wind measuring ring 5. One end of the plurality of sensing lines 30 is fixedly connected with the outer wall of the detector 16.

[0040] When working, the detector 16 in the wind ring 5 detects the two ends of the receiver 4. When the detector 16 detects that air flows out of the two ends of the receiver 4, the detector 16 transmits the detected information to the controller 13 through the sensing line 30. Then the detector 16 continues to detect the external air flow. When the detector 16 detects that the air flow disappears from the two ends of the receiver 4, the controller 13 controls the cleaning and brushing assembly to drive the dust wiping magnetic plate 8 to wipe the surface of the receiver 4, so as to prevent the receiving surface of the receiver 4 from being brought by the air flow. A command is implanted in the controller 13, so that the controller 13 controls the cleaning and brushing assembly to wipe the receiving surface of the receiver 4 once every day and night, so as to wipe the dew on the receiving surface of the receiver 4, prevent the dew from reducing the temperature of the sunlight reflected by the heliostat 2, affect the absorption of the sunlight heat by the receiver 4, and effectively improve the working efficiency of the receiver 4. The detector 16 detects the two ends of the receiver 4, so as to better monitor the air flow around the receiver 4. It should be noted that the detector 16 is a wind detector.

[0041] As shown in Figures 3 to 5 The inner wall of each of the two wind rings 5 is provided with a plurality of air inlets 10.

[0042] When there is external air flow, the air flow enters the wind ring 5 through the air inlet 10 on the wind ring 5, and then the detector 16 detects the entering air flow. By providing a plurality of air inlets 10 on the outer wall of the wind ring 5, the detector 16 can detect the entire receiver 4, and the air inlets 10 are provided with dust filter plates.

[0043] As shown in Figures 4 to 7 The cleaning and brushing assembly includes a ring frame 17 fixedly installed on the top of one of the two wind rings 5. The inner wall of the ring frame 17 is fixedly installed with a power supply 14 in the middle. The outer wall of the ring frame 17 is fixedly installed with an electromagnetic ring plate 9 at the top. A plurality of electric leads 29 are fixedly installed between the electromagnetic ring plate 9 and the power supply 14. The dust wiping magnetic plate 8 is arranged below the electromagnetic ring plate 9. The inner ring wall of the dust wiping magnetic plate 8 is fixedly installed with a residue wiping scraper 19. The residue wiping scraper 19 is in sliding connection with the outer wall of the receiver 4 and the two wind rings 5.

[0044] When cleaning dirt, the controller 13 controls the power supply 14 to energize the electromagnetic ring plate 9 through one of the groups of electric leads 29, and the electromagnetic ring plate 9 emits a magnetic force that repels the dust wiping magnetic plate 8. The dust wiping magnetic plate 8 is repelled by the magnetic force of the electromagnetic ring plate 9, and the slag scraping block 19 is driven to move downward. When moving, the slag scraping block 19 scrapes the receiver 4 and the wind measuring ring 5, and the dirt and dust on the receiver 4 and the wind measuring ring 5 are wiped off, thereby achieving the effect of cleaning dirt. It should be noted that the bottom end of the dust wiping magnetic plate 8 is higher than the bottom end of the slag scraping block 19. The plurality of electric leads 29 can be divided into two groups, and the current directions in the two groups of electric leads 29 are opposite. The electromagnetic ring plate 9 is provided with an electromagnetic coil inside.

[0045] As shown in Figures 3 to 8 , the bottom of the other wind measuring ring 5 is fixedly installed on the slag setting box 12. The slag setting box 12 is fixedly installed with an air extractor 7 at the bottom. The slag setting box 12 and the air extractor 7 are fixedly arranged outside the vertical tower 1. A plurality of air extraction pipes 11 are fixedly installed between the slag setting box 12 and the air extractor 7.

[0046] When the dust wiping magnetic plate 8 scrapes the dirt to the top of the slag setting box 12, the air extractor 7 extracts air in the slag setting box 12 through the air extraction pipe 11. The dirt scraped off by the slag scraping block 19 is drawn into the slag setting box 12 by the air extraction force of the air extractor 7, and is collected, thereby achieving the effect of collecting dirt. After the slag scraping block 19 is cleaned, dirt adheres to the slag scraping block 19. After the subsequent receiver 4 collects light, the dirt adheres to the slag scraping block 19 after drying, which is not conducive to subsequent cleaning. It should be noted that the air extraction force of the air extractor 7 should be greater than the adhesion force of the dirt on the slag scraping block 19.

[0047] As shown in Figures 8 to 9 , the inner wall of the slag setting box 12 is slidably connected with a plurality of pressing shafts 24. The inner wall of the slag setting box 12 is provided with a plug ring 26. The outer ring wall of the plug ring 26 is fixedly connected with the outer walls of the plurality of pressing shafts 24. The outer walls of the plurality of pressing shafts 24 are fixedly installed with a plurality of dust blocking plates 27. The plurality of dust blocking plates 27 are slidably connected with the inner wall of the slag setting box 12.

[0048] When the dust wiping magnetic plate 8 is moved down to a certain position, the bottom of the dust wiping magnetic plate 8 extrudes the pressure shaft 24 on the top of the residue box 12, and the pressure shaft 24 is pressed to extrude the pressure spring 25 to drive the closing ring 26 to move down from the top of the inner wall of the residue box 12, and the opening on the top of the residue box 12 is opened. At this time, the dust extraction force of the air extractor 7 is used to extract the dirt on the residue scraping block 19, and the dirt is brought into the residue box 12 for collection under the action of the air extraction force. When the dust wiping magnetic plate 8 is moved away from the top of the residue box 12, the closing ring 26 is reset under the action of the elastic force of the pressure spring 25 to block the opening on the top of the residue box 12, so as to prevent the dirt in the residue box 12 from being blown out of the opening on the top of the residue box 12 and falling on the receiver 4 and the wind ring 5 after drying, affecting the operation. It should be noted that the opening position of the residue box 12 should correspond to the interval position between the residue scraping block 19 and the dust wiping magnetic plate 8.

[0049] As shown in Figures 3 to 9 , a plurality of residue falling pipes 23 are fixedly installed on the top of the residue box 12, the plurality of residue falling pipes 23 are through pipes, a residue limiting ring disc 6 is fixedly installed between the bottom of the residue box 12 and the top of the air extractor 7, and one end of each of the plurality of residue falling pipes 23 is arranged at the bottom of the residue limiting ring disc 6.

[0050] When the dirt falls into the residue box 12, since the air extractor 7 extracts air through the air extraction pipe 11, the air extraction pipe 11 is provided with a plurality of air extraction pipes, so that the dirt extracted by the air extractor 7 is divided into a plurality of small dirt blocks during extraction. Through continuous extraction by the air extractor 7, the moisture in the dirt block is dried, and the dirt block is hardened. Then, through the arc surface arrangement inside the residue box 12, the hardened dirt block slides from the inner wall of the residue box 12 to the bottom of the residue box 12, and finally flows out of the residue box 12 through the residue falling pipe 23 and falls outside the tower 1 through the limitation of the residue limiting ring disc 6. Since the height of the tower 1 is too high, the dirt is prevented from accumulating too much in the residue box 12, and the operator needs to frequently pour it out. It should be noted that the residue falling diameter of the residue falling pipe 23 should be greater than the diameter of the dirt block, and a residue sliding track should be provided between the air extraction pipe 11 and the residue falling pipe 23 inside the residue box 12. The inner surface of the residue box 12 should be provided with a dirt-proof material, such as a three-proof cloth, a dirt-proof nano coating, etc.

[0051] As shown in Figures 6 to 7 , a plurality of inner groove boxes 15 are fixedly installed on the outer wall of the ring frame 17, a group of shaft rods 21 are fixedly installed on the inner wall of each of the plurality of inner groove boxes 15, one end of each of the group of shaft rods 21 is slidably connected with a clamping block 18, a group of reset springs 20 are arranged between one side of the clamping block 18 and the inner wall of the inner groove box 15, the group of reset springs 20 are arranged outside the group of shaft rods 21, a plurality of notches 22 are formed in the inner wall of the dust wiping magnetic plate 8, and each of the plurality of clamping blocks 18 can be clamped with the inner wall of each of the plurality of notches 22.

[0052] When the wiping dust magnetic plate 8 drives the wiping residue scraping block 19 to complete the wiping operation, the controller 13 controls the power supply 14 to change the current direction, the power supply 14 is powered from the other set of electric wires 29 to the electromagnetic ring plate 9, the electromagnetic ring plate 9 changes the magnetism, pulls the wiping dust magnetic plate 8, and moves the wiping dust magnetic plate 8 upward from the top of the residue box 12. When the wiping dust magnetic plate 8 moves to a certain position, the wiping dust magnetic plate 8 extrudes the clamping block 18 to move in the inner groove box 15. When the wiping dust magnetic plate 8 is reset, the clamping block 18 is clamped into the slot 22 in the wiping dust magnetic plate 8 under the pushing force of the reset spring 20, and the wiping dust magnetic plate 8 is clamped and fixed, so that the wiping dust magnetic plate 8 is placed at the bottom of the electromagnetic ring plate 9 when the power supply 14 is powered off, and the initial state is maintained, which does not affect the light collection operation of the receiver 4. Through the clamping and fixing of the wiping dust magnetic plate 8 by the clamping block 18, the wiping brush assembly can be kept stationary when not in operation, thereby saving the power of the power supply 14 and saving resources.

[0053] As shown in Figures 1 to 2 , the top of the electromagnetic ring plate 9 is fixedly installed with an arc sliding plate 3, and the electromagnetic ring plate 9 and the wiping dust magnetic plate 8 are arranged in the arc sliding plate 3, and the top of the arc sliding plate 3 is a curved sliding surface.

[0054] When it rains, the arc sliding plate 3 can block the rain and prevent the rain from falling on the receiver 4, thereby playing a shielding role. By arranging the electromagnetic ring plate 9 and the wiping dust magnetic plate 8 in the arc sliding plate 3, the two are protected and at the same time can prevent them from interfering with the operation of the receiver 4. It should be noted that the diameter of the arc sliding plate 3 is the maximum value of the receiver 4 being rained on.

[0055] As shown in Figures 1 to 10 , the bottom of the arc sliding plate 3 is fixedly installed with a light deflector 28, and the light deflector 28 is a dust blocking light deflector.

[0056] When working, the heliostat 2 needs to move when positioning and capturing the sun. When the heliostat 2 rotates, the angle between the heliostat 2 and the receiver 4 changes. By arranging the light deflector 28, the sunlight refracted by the heliostat 2 can always shine on the receiver 4 when the heliostat 2 rotates, thereby playing an auxiliary light collection role.

[0057] Working principle: by selecting a wide desert, gobi and other areas as the settlement area, the receiver 4 is fixedly installed on the top of the tower 1, then the tower 1 is placed in the middle of the settlement area, and a plurality of heliostats 2 are regularly placed around the tower 1 by angle measurement calculation, so that the reflecting surface of the plurality of heliostats 2 and the receiving end of the receiver 4 are in a state of reflection and reception. When both are settled, photovoltaic power generation operation can be carried out. When photovoltaic power generation operation is carried out, due to the large difference between day and night in desert, gobi and other areas, dew is easily formed on the receiver 4 at night. When the external wind is too large, the airflow will carry the flying dust and flying sand in the air to float. When the airflow carries the flying dust and flying sand to the receiver 4, the flying dust and flying sand will adhere to the dew on the receiver 4 to form dirt on the receiver 4. At this time, the cleaning assembly at the top of the receiver 4 operates, and the dust wiping magnetic plate 8 carried by the cleaning assembly wipes off the flying dust and flying sand deposited on the surface of the receiver 4, preventing the flying dust and flying sand deposited on the surface of the receiver 4 from affecting the receiving operation of the receiver 4 to the light reflected by the heliostat 2, and facilitating the operation;

[0058] When working, the detector 16 in the wind ring 5 detects the two ends of the receiver 4. When the detector 16 detects that the airflow at the two ends of the receiver 4 surges, the detector 16 transmits the detected information to the controller 13 through the sensing line 30. Then the detector 16 continuously detects the external airflow. When the detector 16 detects that the airflow at the two ends of the receiver 4 disappears, the controller 13 controls the cleaning assembly to drive the dust wiping magnetic plate 8 to wipe off the surface of the receiver 4, preventing the receiving surface of the receiver 4 from being deposited with dust and dirt by the airflow. By implanting a command in the controller 13, the controller 13 controls the cleaning assembly to wipe the receiving surface of the receiver 4 once every day and night, which can wipe off the dew on the receiving surface of the receiver 4, prevent the dew from reducing the temperature of the sunlight reflected by the heliostat 2, affect the absorption of sunlight heat by the receiver 4, effectively improve the working efficiency of the receiver 4, and better monitor the airflow around the receiver 4 through the detector 16 detecting the two ends of the receiver 4;

[0059] When there is airflow outside, the airflow enters the wind ring 5 through the air inlet 10 on the wind ring 5, and then the detector 16 detects the airflow entering it. By opening a plurality of air inlets 10 on the outer wall of the wind ring 5, the detector 16 can detect the entire receiver 4, achieving the effect of detecting without dead angle;

[0060] When the dust is cleaned, the controller 13 controls the power supply 14 to energize the electromagnetic ring plate 9 through one of the groups of electric leads 29, and the electromagnetic ring plate 9 emits a magnetic force to repel the dust wiping magnetic plate 8. The dust wiping magnetic plate 8 is repelled by the magnetic force of the electromagnetic ring plate 9, and moves downward to wipe the receiver 4 and the anemorumbus 5. The dust on the surface of the receiver 4 and the anemorumbus 5 is wiped off, and the dust is cleaned.

[0061] When the dust is cleaned, the controller 13 controls the power supply 14 to energize the electromagnetic ring plate 9 through one of the groups of electric leads 29, and the electromagnetic ring plate 9 emits a magnetic force to repel the dust wiping magnetic plate 8. The dust wiping magnetic plate 8 is repelled by the magnetic force of the electromagnetic ring plate 9, and moves downward to wipe the receiver 4 and the anemorumbus 5. The dust on the surface of the receiver 4 and the anemorumbus 5 is wiped off, and the dust is cleaned.

[0062] When the dust is cleaned, the controller 13 controls the power supply 14 to energize the electromagnetic ring plate 9 through one of the groups of electric leads 29, and the electromagnetic ring plate 9 emits a magnetic force to repel the dust wiping magnetic plate 8. The dust wiping magnetic plate 8 is repelled by the magnetic force of the electromagnetic ring plate 9, and moves downward to wipe the receiver 4 and the anemorumbus 5. The dust on the surface of the receiver 4 and the anemorumbus 5 is wiped off, and the dust is cleaned.

[0063] When the dust is cleaned, the controller 13 controls the power supply 14 to energize the electromagnetic ring plate 9 through one of the groups of electric leads 29, and the electromagnetic ring plate 9 emits a magnetic force to repel the dust wiping magnetic plate 8. The dust wiping magnetic plate 8 is repelled by the magnetic force of the electromagnetic ring plate 9, and moves downward to wipe the receiver 4 and the anemorumbus 5. The dust on the surface of the receiver 4 and the anemorumbus 5 is wiped off, and the dust is cleaned.

[0064] When the wiping dust magnetic plate 8 drives the wiping residue scraping block 19 to complete the wiping operation, the controller 13 controls the power supply 14 to change the current direction, the power supply 14 is powered from the other group of electric wires 29 to the electromagnetic ring plate 9, the electromagnetic ring plate 9 changes the magnetism, pulls the wiping dust magnetic plate 8, and moves the wiping dust magnetic plate 8 upward from the top of the residue box 12, when the wiping dust magnetic plate 8 moves to a certain position, the wiping dust magnetic plate 8 extrudes the clamping block 18 to move in the inner groove box 15, when the wiping dust magnetic plate 8 is reset, the clamping block 18 is clamped into the slot 22 in the wiping dust magnetic plate 8 under the pushing force of the reset spring 20, the wiping dust magnetic plate 8 is clamped and fixed, when the power supply 14 is powered off, the wiping dust magnetic plate 8 is also placed at the bottom of the electromagnetic ring plate 9, keeps the initial state, and does not affect the light collection operation of the receiver 4, through the clamping and fixing of the wiping dust magnetic plate 8 by the clamping block 18, the cleaning brush assembly can keep the wiping dust magnetic plate 8 stationary when not working, thereby saving the power of the power supply 14 and saving resources.

[0065] When it is rainy and snowy, the arc sliding plate 3 can block the rain and snow, prevent the rain and snow from raining on the receiver 4, and play a shielding role, the electromagnetic ring plate 9 and the wiping dust magnetic plate 8 are placed in the arc sliding plate 3, which can protect them and prevent them from affecting the operation of the receiver 4.

[0066] When working, the heliostat 2 needs to move when positioning and capturing the sun, when the heliostat 2 rotates, the angle between the heliostat 2 and the receiver 4 changes, through the setting of the light refraction device 28, the sunlight refracted by the heliostat 2 can always irradiate on the receiver 4 when the heliostat 2 rotates, which plays an auxiliary light collection role.

[0067] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, the above examples and descriptions in the specification are only to illustrate the principles of the present application, without departing from the spirit and scope of the present application, the present application can have various changes and improvements, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A tower photovoltaic power plant, characterized by: The utility model relates to a solar tower system, including tower, heliostat and receiver, the tower is vertically installed on the ground, the receiver is fixedly installed on the top of tower, the heliostat has multiple, multiple heliostat is arranged in turn on the ground, the tower is placed in the inside middle position of multiple heliostat, the top of receiver is provided with the brush cleaning subassembly, the brush cleaning subassembly includes dust wiping magnetic plate, dust wiping magnetic plate falls on the dust and fly ash that falls on the surface of receiver and is wiped off; The detection assembly includes two wind measuring rings, which are symmetrically fixedly installed at the two ends of the receiver. The inside of each wind measuring ring is fixedly installed with a controller. The outer wall of the controller is fixedly installed with a plurality of sensing lines. The controller and the inner wall of the wind measuring ring are provided with a detector. One end of the plurality of sensing lines is fixedly connected with the outer wall of the detector. The inner wall of each wind measuring ring is provided with a plurality of air inlets. The brush cleaning subassembly includes a ring frame fixedly installed on the top of one of the wind measuring rings. The inner wall of the ring frame is fixedly installed with a power supply. The outer wall of the ring frame is fixedly installed with an electromagnetic ring plate. A plurality of electric leads are fixedly installed between the electromagnetic ring plate and the power supply. The dust wiping magnetic plate is arranged below the electromagnetic ring plate. The inner ring wall of the dust wiping magnetic plate is fixedly installed with a slag scraping block. The slag scraping block is slidingly connected with the outer wall of the receiver and the two wind measuring rings. The bottom of the other wind measuring ring is fixedly installed with a slag setting box. The bottom of the slag setting box is fixedly installed with an air extractor. The slag setting box and the air extractor are fixedly arranged outside the tower. A plurality of air extraction pipes are fixedly installed between the slag setting box and the air extractor.

2. A tower PV power plant according to claim 1, characterized in that: The inner wall of the slag setting box is slidingly connected with a plurality of pressure shafts. The inner wall of the slag setting box is provided with a plug ring. The outer ring wall of the plug ring is fixedly connected with the outer wall of the plurality of pressure shafts. A pressure spring is arranged between the plurality of pressure shafts and the inner wall of the slag setting box. The outer wall of the plurality of pressure shafts is fixedly installed with a dust blocking plate. The plurality of dust blocking plates are slidingly connected with the inner wall of the slag setting box.

3. A tower PV power plant according to claim 2, characterized in that: The top of the slag setting box is fixedly installed with a plurality of slag falling pipes. The plurality of slag falling pipes are through pipes. A slag limiting ring disc is fixedly installed between the bottom of the slag setting box and the top of the air extractor. One end of the plurality of slag falling pipes is arranged at the bottom of the slag limiting ring disc.

4. A tower PV power plant according to claim 3, characterized in that: The outer wall of the ring frame is fixedly installed with a plurality of inner groove boxes. The inner wall of each inner groove box is fixedly installed with a set of shaft rods. One end of each set of shaft rods is slidingly connected with a clamping block. One side of the clamping block and the inner wall of the inner groove box are provided with a set of return springs. The set of return springs are arranged outside the set of shaft rods. The inner wall of the dust wiping magnetic plate is provided with a plurality of notches. Each clamping block can be clamped with the inner wall of each notch.

5. A tower PV power plant according to claim 4, characterized in that: The top of the electromagnetic ring plate is fixedly installed with an arc sliding plate. The electromagnetic ring plate and the dust wiping magnetic plate are arranged inside the arc sliding plate. The top of the arc sliding plate is a curved sliding surface.

6. A tower PV power plant according to claim 5, characterized in that: The bottom of the arc sliding plate is fixedly installed with a light deflector. The light deflector is a dust blocking light deflector.

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