A self-cleaning offshore photovoltaic power generation system

Abstract

The present invention relates to the technical field of photovoltaic power stations, and proposes a self-cleaning offshore photovoltaic power generation system, comprising a support frame arranged on a foundation platform, a plurality of photovoltaic panels arranged obliquely on the support frame, a fresh water collection and water supply mechanism provided on the higher side of the photovoltaic panel, a mobile loading mechanism provided on the higher side of the support frame, a conversion and cleaning mechanism provided on the mobile loading mechanism, the conversion and cleaning mechanism being intermittently driven by a linkage mechanism to connect to a scrubbing mechanism provided on the side of the photovoltaic panel, and a detection system provided on the upper side of the photovoltaic panel, the detection system being communicatively connected to a control system. The beneficial effects of the present invention are as follows: the cleanliness of the surface of the photovoltaic panel can be detected by the detection system, the fresh water collection and water supply mechanism is activated by the control system, and high-pressure water is supplied to the conversion and cleaning mechanism, and the control system also controls the conversion and cleaning mechanism to clean the photovoltaic panel. During the cleaning process, the surface of the photovoltaic panel is scrubbed, thereby improving the cleaning efficiency and power generation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power stations, and in particular to a self-cleaning offshore photovoltaic power generation system. Background Art

[0002] With the development of new energy, photovoltaic panels, as a clean, renewable energy device, have been widely used in the energy industry. However, pollutants such as dust and dirt easily accumulate on the surface of photovoltaic panels. These pollutants can reduce the photovoltaic panels' photoelectric conversion efficiency and affect their power generation capacity.

[0003] Therefore, the cleaning and maintenance of photovoltaic panels in photovoltaic power stations is an important part of photovoltaic power plant operation and maintenance. How to automatically and intelligently clean photovoltaic panels under complex circumstances has always been a difficult point in photovoltaic power plant operation and maintenance technology.

[0004] Traditional photovoltaic panel cleaning methods rely primarily on manual labor, requiring significant manpower, resulting in complex operations and low efficiency. Furthermore, manual cleaning poses safety risks and is difficult to guarantee effective cleaning results. This has spurred the development of automated photovoltaic panel cleaning technologies. Summary of the Invention

[0005] This application proposes a self-cleaning offshore photovoltaic power generation system, which obtains the status of the photovoltaic panel surface through a detection system, automatically determines the contamination condition, matches the corresponding nozzles and output pressure and output flow to achieve the purpose of energy saving, automatically cleans the surface of the photovoltaic panel, removes dirt on the surface of the photovoltaic panel, and thus can improve the power generation efficiency.

[0006] To this end, the present application provides a self-cleaning offshore photovoltaic power generation system, comprising a support frame arranged on a foundation platform, on which a number of photovoltaic panels are installed in an inclined arrangement, a fresh water collection and water supply mechanism is provided on the higher side of the photovoltaic panel, a mobile loading mechanism is provided on the higher side of the support frame, a conversion and cleaning mechanism is provided on the mobile loading mechanism, the conversion and cleaning mechanism is intermittently driven by a linkage mechanism to connect to a scrubbing mechanism arranged on the side of the photovoltaic panel, and also includes a detection system arranged on the upper side of the photovoltaic panel, and the detection system is communicatively connected to the control system.

[0007] By adopting the above technical solution: the cleanliness of the surface of the photovoltaic panel can be detected by the detection system. When there is a lot of dust and other particles accumulated on the surface of the photovoltaic panel, the control system receives the video image signal collected by the detection system for analysis, starts the fresh water collection and water supply mechanism, and supplies high-pressure water to the conversion cleaning mechanism. At the same time, the control system also controls the conversion cleaning mechanism, continuously rotates at different angles to spray high-pressure water onto the surface of the photovoltaic panel to clean the photovoltaic panel. At the same time, during the cleaning process, the mobile loading mechanism can drive the conversion cleaning mechanism to move. During the movement, the linkage mechanism can be used to drive the scrubbing mechanism to scrub the surface of the photovoltaic panel, thereby improving the cleaning efficiency and the power generation efficiency of the photovoltaic panel.

[0008] As an optional technical solution of the present application, the support frame includes a plurality of vertical support rods fixed on the foundation platform, the upper parts of the vertical support rods are connected to oblique rods, and the photovoltaic panels are fixedly mounted on the oblique rods.

[0009] By adopting the above technical solution: after fixing the above support frame on the foundation platform, photovoltaic panels are installed in rows, wherein the upper and lower ends of the photovoltaic panels are installed in alignment, which is convenient for unified cleaning.

[0010] As an optional technical solution of the present application, the fresh water collection and supply mechanism includes a collection box fixedly arranged on a foundation platform, a rainwater collection trough is provided on the top of the collection box, a filter is provided at the bottom of the rainwater collection trough, a drive motor is fixedly provided on the upper part of the collection box, the drive motor drives a high-pressure centrifugal pump, the water inlet pipe of the high-pressure centrifugal pump extends to the bottom of the rainwater collection box, and the high-pressure centrifugal pump is connected to the conversion and cleaning mechanism through a soft water pipe.

[0011] By adopting the above technical solution: the collection box is used to collect rainwater, which is convenient for later flushing with fresh water. The filter element can filter impurities to prevent the nozzle from being blocked in the later stage. The high-pressure centrifugal pump driven by the driving motor can pressurize the fresh water in the collection box and transport it to the conversion cleaning mechanism for spraying to clean the surface of the photovoltaic panel.

[0012] As an optional technical solution of the present application, the mobile loading mechanism includes a driving sprocket on one side of the upper end of the support frame and a driven sprocket on the other side. The driving sprocket is connected to a servo motor provided on the support frame. A crawler is provided for rotation between the driving sprocket and the driven sprocket, and the conversion cleaning mechanism is fixed on the crawler.

[0013] By adopting the above technical solution: the servo motor can drive the active sprocket to rotate, thereby driving the crawler to move, and the crawler can drive the conversion cleaning mechanism to move, which is convenient for cleaning the next photovoltaic panel, and also convenient for driving the scrubbing mechanism to move through the linkage mechanism to scrub the surface of the photovoltaic panel. When cleaning the current photovoltaic panel, the next photovoltaic panel can be pre-moistened and cleaned.

[0014] As an optional technical solution of the present application, the conversion cleaning mechanism includes a mounting frame arranged on a crawler, a water outlet pipe is connected to the mounting frame through a rotating shaft, a rotating motor is built into the rotating shaft, and the water outlet pipe is connected to a soft water pipe through a conversion component. At least three flow cavities are provided inside the water outlet pipe, and each flow cavity is connected to multiple nozzles, forming three rows of nozzle arrays with different angles.

[0015] By adopting the above technical solution: a rotating motor is built into the rotating shaft, which can drive the rotating shaft to rotate relative to the mounting frame, thereby causing the water outlet pipe to rotate relatively, and nozzles at different angles are selected to clean the surface of the photovoltaic panel. Each row of nozzles is connected to a different flow cavity, and different flow cavities can be selected to be connected to the soft water pipe through the conversion component.

[0016] As an optional technical solution of the present application, the conversion assembly includes three conducting holes arranged on the water outlet pipe, one conducting hole is arranged on each flow cavity, and also includes a joint pipe arranged on the mounting frame, one end of the joint pipe is connected to the soft water pipe, and the other end of the joint pipe is provided with a conducting cover, and the conducting cover is rotatably sealed and connected to the conducting hole of the water outlet pipe.

[0017] By adopting the above technical solution: when the water outlet pipe rotates, one conducting hole is always kept in communication with the joint pipe, so that different flow cavities and nozzles with different angles can be selected.

[0018] As an optional technical solution of the present application, a limit plate is provided on the water outlet pipe on both sides of the conductive hole, an arc groove is provided on the limit plate, a fixed plate corresponding to the limit plate is provided on the conductive cover, a guide rod is provided on the fixed plate, and the guide rod is slidably set in the arc groove.

[0019] By adopting the above technical solution, the guide cover can always be in sliding and sealing connection with the water outlet pipe through the cooperation between the guide rod and the arc groove.

[0020] As an optional technical solution of the present application, the scrubbing mechanism includes a scrubbing rod rotatably connected to both sides of the photovoltaic panel through a torsion shaft, a scrubbing brush in contact with the surface of the photovoltaic panel is provided at the lower part of the scrubbing rod, and the scrubbing rod is driven and connected to the linkage mechanism.

[0021] As an optional technical solution of the present application, the linkage mechanism includes a linkage rod with one end fixed on the mounting frame, the linkage rod is in contact with the scrubbing rod, the scrubbing mechanism also includes a bottom scraping brush connected to the water collection tank through an elastic member, the linkage mechanism also includes a roller arranged on the side of the photovoltaic panel, one end of the pull rope is connected to the bottom scraping brush, and the other end of the pull rope is wrapped around the roller and connected to the end of the scrubbing rod.

[0022] By adopting the above technical solution: during the cleaning process, the crawler can drive the mounting frame to swing back and forth, so that the scrubbing rod can be driven to swing on the surface of the photovoltaic panel through the linkage rod, thereby cleaning the surface of the photovoltaic panel. When the scrubbing rod swings, the pull rope can also drive the bottom scraping brush to move along the photovoltaic panel, thereby scrubbing the bottom of the photovoltaic panel.

[0023] As an optional technical solution of the present application, the detection system includes a mounting column arranged on a foundation platform, a camera is provided on the mounting column, the camera is communicated and connected to a control system, the control system is also electrically connected to a drive motor, a servo motor and a rotating motor, and a water collection tank is also provided at the lower end of the support frame, and the water collection tank is connected to a collection box through a reflux component.

[0024] By adopting the above technical solution: the camera can monitor the amount of dust on the surface of the photovoltaic panel in real time. After comparison through the control system, when the preset value is reached, the control system controls the drive motor, servo motor and rotating motor to clean the surface of the photovoltaic panel, realizing automated cleaning and eliminating the manual cleaning process. The remaining water after cleaning is collected through the water collection tank, and can be filtered and returned to the collection box through the reflux component.

[0025] The working principle and beneficial effects of this application are:

[0026] 1. In this application, the cleanliness of the surface of the photovoltaic panel can be detected by the detection system. When there is a lot of dust and the like accumulated on the surface of the photovoltaic panel, the control system receives the video image signal collected by the detection system for analysis, starts the fresh water collection and water supply mechanism, and supplies high-pressure water to the conversion cleaning mechanism. At the same time, the control system also controls the conversion cleaning mechanism, continuously rotates at different angles to spray high-pressure water onto the surface of the photovoltaic panel to clean the photovoltaic panel. At the same time, during the cleaning process, the mobile loading mechanism can drive the conversion cleaning mechanism to move, and during the movement, the linkage mechanism can drive the scrubbing mechanism to move to scrub the surface of the photovoltaic panel, thereby improving the cleaning efficiency and the power generation efficiency of the photovoltaic panel.

[0027] 2. The collection box in this application is used to collect rainwater, which is convenient for flushing with fresh water later. Impurities can be filtered through the filter element to prevent the nozzle from being blocked later. The high-pressure centrifugal pump driven by the driving motor can pressurize the fresh water in the collection box and transport it to the conversion cleaning mechanism for spraying to clean the surface of the photovoltaic panel.

[0028] 3. The servo motor can drive the active sprocket to rotate, thereby driving the crawler to move. The crawler can drive the conversion cleaning mechanism to move, which is convenient for cleaning the next photovoltaic panel. It is also convenient to drive the scrubbing mechanism through the linkage mechanism to scrub the surface of the photovoltaic panel.

[0029] 4. The camera can monitor the amount of dust on the surface of the photovoltaic panel in real time. After comparison through the control system, when the preset value is reached, the control system controls the drive motor, servo motor and rotating motor to clean the surface of the photovoltaic panel, realizing automatic cleaning and eliminating the manual cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present application will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] Figure 1 This is a schematic diagram of the overall top view of the structure of an embodiment of the present application;

[0032] Figure 2 A schematic side view of the structure of an embodiment of the present application;

[0033] Figure 3 This is a partial structural diagram of the mobile loading mechanism of an embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of the installation structure of the water outlet pipe according to an embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the cross-sectional structure of the water outlet pipe of an embodiment of the present application;

[0036] Figure 6 This is a schematic structural diagram of a conductive cover according to an embodiment of the present application;

[0037] Figure 7 This is a schematic diagram of the planar structure of the water outlet pipe according to an embodiment of the present application;

[0038] Figure 8 This is a schematic diagram of a top view structure after further optimization of an embodiment of the present application.

[0039] The markings of the various technical features in the accompanying drawings are as follows:

[0040] 100, foundation platform; 110, detection system; 111, mounting column; 112, camera; 120, water collection tank; 200, support frame; 210, vertical support rod; 220, diagonal rod; 300, photovoltaic panel; 400, fresh water collection and supply mechanism; 410, collection box; 420, rainwater collection tank; 430, filter element; 440, drive motor; 450, high-pressure centrifugal pump; 460, soft water pipe; 500, mobile loading mechanism; 510, driving sprocket; 520, driven sprocket; 530, servo motor; 540 , crawler; 600, conversion cleaning mechanism; 610, installation frame; 620, rotating shaft; 630, water outlet pipe; 631, limit plate; 632, arc groove; 640, flow cavity; 650, nozzle; 660, conduction hole; 670, connecting pipe; 680, conduction cover; 681, fixing plate; 682, guide rod; 700, linkage mechanism; 710, linkage rod; 720, pull rope; 730, roller; 800, scrubbing mechanism; 810, scrubbing rod; 820, elastic part; 830, bottom scraping brush; 900, control system. DETAILED DESCRIPTION

[0041] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0042] like Figures 1-8 As shown, the present application provides a self-cleaning offshore photovoltaic power generation system, including a support frame 200 arranged on a foundation platform 100, and a plurality of photovoltaic panels 300 are installed on the support frame 200 in an inclined arrangement, and a fresh water collection and water supply mechanism 400 is provided on the higher side of the photovoltaic panel 300, and a mobile loading mechanism 500 is provided on the higher side of the support frame 200, and a conversion cleaning mechanism 600 is provided on the mobile loading mechanism 500, and the conversion cleaning mechanism 600 is intermittently driven by a linkage mechanism 700 and connected to a scrubbing mechanism 800 arranged on the side of the photovoltaic panel 300, and also includes a detection system 110 arranged on the upper side of the photovoltaic panel 300, and the detection system 110 is communicatively connected to the control system 900.

[0043] The basic principle of this embodiment is as follows: the cleanliness of the surface of the photovoltaic panel 300 can be detected by the detection system 110. When there is a lot of dust and the like accumulated on the surface of the photovoltaic panel 300, the control system 900 receives the video image signal collected by the detection system 110 for analysis, starts the fresh water collection and water supply mechanism 400, and supplies high-pressure water to the conversion cleaning mechanism 600. At the same time, the control system 900 also controls the conversion cleaning mechanism 600 to continuously rotate at different angles to spray high-pressure water onto the surface of the photovoltaic panel 300 to clean the photovoltaic panel 300. At the same time, during the cleaning process, the mobile loading mechanism 500 can drive the conversion cleaning mechanism 600 to move. During the movement, the linkage mechanism 700 can drive the scrubbing mechanism 800 to move to scrub the surface of the photovoltaic panel 300, thereby improving the cleaning efficiency.

[0044] Reference Figure 1 and Figure 2 In this embodiment, the support frame 200 includes a plurality of vertical support rods 210 fixed on the foundation 100, and the upper part of the vertical support rods 210 is connected to the oblique rods 220, and the photovoltaic panels 300 are fixedly installed on the oblique rods 220. After the above-mentioned support frame 200 is fixed on the foundation 100, the photovoltaic panels 300 are installed in rows, wherein the upper and lower ends of the photovoltaic panels 300 are aligned and installed to facilitate unified cleaning.

[0045] Reference Figure 1 and Figure 2 In this embodiment, the fresh water collection and supply mechanism 400 includes a collection box 410 fixedly mounted on the foundation platform 100, a rainwater collection trough 420 is provided on the top of the collection box 410, a filter element 430 is provided at the bottom of the rainwater collection trough 420, and a drive motor 440 is fixedly mounted on the upper part of the collection box 410. The drive motor 440 drives a high-pressure centrifugal pump 450. The water inlet pipe of the high-pressure centrifugal pump 450 extends to the bottom of the rainwater collection box 410, and the high-pressure centrifugal pump 450 is connected to the conversion and cleaning mechanism 600 through a soft water pipe 460.

[0046] The collection box 410 is used to collect rainwater for later flushing with fresh water. The filter element 430 can filter out impurities to prevent the nozzle from being blocked later. The high-pressure centrifugal pump 450 driven by the driving motor 440 can pressurize the fresh water in the collection box 410 and transport it to the conversion cleaning mechanism 600 for spraying to clean the surface of the photovoltaic panel 300.

[0047] Reference Figure 3In this embodiment, the mobile loading mechanism 500 includes a driving sprocket 510 arranged on one side of the upper end of the support frame 200 and a driven sprocket 520 on the other side. The driving sprocket 510 is driven and connected to the servo motor 530 arranged on the support frame 200. A crawler 540 is provided for rotation between the driving sprocket 510 and the driven sprocket 520, and the conversion cleaning mechanism 600 is fixedly arranged on the crawler 540; the servo motor 530 can drive the driving sprocket 510 to rotate, thereby driving the crawler 540 to move, and the crawler 540 can drive the conversion cleaning mechanism 600 to move, so as to facilitate the cleaning of the next photovoltaic panel 300, and also facilitate the scrubbing mechanism 800 to move through the linkage mechanism 700 to scrub the surface of the photovoltaic panel 300. When cleaning the current photovoltaic panel 300, the next photovoltaic panel 300 can be pre-wetted and cleaned.

[0048] Reference Figure 4-Figure 7 In this embodiment, the conversion cleaning mechanism 600 includes a mounting frame 610 arranged on the crawler 540, and a water outlet pipe 630 is rotatably connected to the mounting frame 610 through a rotating shaft 620. The rotating shaft 620 has a built-in rotating motor. The water outlet pipe 630 is connected to the soft water pipe 460 through a conversion component. At least three flow cavities 640 are provided inside the water outlet pipe 630, and each flow cavity 640 is connected to a plurality of nozzles 650, forming three rows of nozzle arrays 650 with different angles.

[0049] The rotating shaft 620 is equipped with a rotating motor, which can drive the rotating shaft 620 to rotate relative to the mounting frame 610, thereby causing the water outlet pipe 630 to rotate relatively, and selecting nozzles 650 at different angles to clean the surface of the photovoltaic panel 300. Each row of nozzles 650 is connected to a different flow cavity 640, and different flow cavities 640 can be selected to be connected to the soft water pipe 460 through the conversion component.

[0050] Reference Figure 6 and Figure 7 In this embodiment, the conversion assembly includes three conducting holes 660 provided on the outlet pipe 630, one conducting hole 660 is provided on each flow cavity 640, and also includes a joint pipe 670 provided on the mounting frame 610, one end of the joint pipe 670 is connected to the soft water pipe 460, and the other end of the joint pipe 670 is provided with a conducting cover 680, and the conducting cover 680 is rotatably sealed and connected to the conducting hole 660 of the outlet pipe 630.

[0051] Specifically, in this embodiment, three types of nozzles 650 are located on the outlet pipe 630, which has a flow chamber 640 divided into three layers: upper, middle, and lower. They are fastened to the outlet pipe 630 via threaded connections. The three nozzles 650 are each a 0° cylindrical high-pressure nozzle with a vertical cylindrical nozzle that sprays a high-pressure water stream in a vertical direction. By adjusting the diameter and spray angle of the nozzle 650, the size and coverage of the water stream can be controlled. The concentrated high-pressure water stream from this nozzle can remove difficult-to-clean contaminants such as bird droppings and algae from the photovoltaic panels 300. Another nozzle 650 is a 15° fan-shaped high-pressure nozzle, which sprays a 15° fan-shaped high-pressure water stream in a vertical direction. This fan-shaped water stream disperses the water pressure at distant locations, but can cover a larger area. This high-pressure nozzle is suitable for contaminants consisting of a 50% mix of dust and bird droppings. Its water pressure is 2.5-3.5 MPa, and its flow rate is 8-12 L / min. When the contaminants are easily cleaned, such as dust, the third nozzle type 650 is used. This is a high-pressure nozzle with a 40° fan-shaped water outlet. Two nozzles can cover the entire surface of the photovoltaic panel 300, but the output pressure is low, ranging from 1.5 to 2 MPa and a flow rate of 5 to 8 L / min. By analyzing and processing the surface image of the photovoltaic panel 300, the appropriate high-pressure nozzle, output pressure, and flow rate are intelligently selected based on the type and location of the contaminant, reducing water consumption and improving cleaning efficiency.

[0052] When the water outlet pipe 630 rotates, one of the conducting holes 660 is always kept in communication with the joint pipe 670 , so that different flow cavities 640 and nozzles 650 with different angles can be selected.

[0053] Reference Figure 6 In this embodiment, the water outlet pipes 630 on both sides of the conducting hole 660 are provided with limit plates 631, and the limit plates 631 are provided with arc-shaped grooves 632. The conducting cover 680 is provided with fixed plates 681 corresponding to the limit plates 631, and the fixed plates 681 are provided with guide rods 682. The guide rods 682 are slidably set in the arc-shaped grooves 632. Through the cooperation between the guide rods 682 and the arc-shaped grooves 632, the conducting cover 680 can always be slidably and sealedly connected to the water outlet pipe 630.

[0054] Reference Figure 1 and Figure 2 In this embodiment, the scrubbing mechanism 800 includes a scrubbing rod 810 rotatably connected to both sides of the photovoltaic panel 300 through a torsion shaft, and a scrubbing brush in contact with the surface of the photovoltaic panel 300 is provided at the lower part of the scrubbing rod 810. The scrubbing rod 810 is driven and connected to the linkage mechanism 700.

[0055] Reference Figure 8In this embodiment, the linkage mechanism 700 includes a linkage rod 710 with one end fixed on the mounting frame 610, and the linkage rod 710 is in contact with the scrubbing rod 810. The scrubbing mechanism 800 also includes a bottom scraping brush 830 connected to the water collection tank 120 through an elastic member 820. The linkage mechanism 700 also includes a roller 730 arranged on the side of the photovoltaic panel 300, and one end of the pull rope 720 is connected to the bottom scraping brush 830, and the other end of the pull rope 720 is connected to the end of the scrubbing rod 810 after being wrapped around the roller 730.

[0056] During the cleaning process, the track 540 can drive the mounting frame 610 to swing back and forth, so that the scrubbing rod 810 can be driven to swing on the surface of the photovoltaic panel 300 through the linkage rod 710, thereby cleaning the surface of the photovoltaic panel 300. When the scrubbing rod 810 swings, the pull rope 720 can also drive the bottom scraper 830 to move along the photovoltaic panel 300, thereby scrubbing the bottom of the photovoltaic panel 300.

[0057] In this embodiment, the detection system 110 includes an installation column 111 set on the foundation platform 100, and a camera 112 is provided on the installation column 111. The camera 112 is communicatively connected to the control system 900. The control system 900 is also electrically connected to the drive motor 440, the servo motor 530 and the rotating motor. The lower end of the support frame 200 is also provided with a water collection tank 120, and the water collection tank 120 is connected to the collection box 410 through a return component. The return component includes a return pipe and a return pump, wherein one end of the return pipe is in the water collection tank 120, and the other end is set at the rainwater collection tank 420.

[0058] The camera 112 can monitor the amount of dust on the surface of the photovoltaic panel 300 in real time. After comparison by the control system 900, when the preset value is reached, the control system 900 controls the driving motor 440, the servo motor 530 and the rotating motor to clean the surface of the photovoltaic panel 300, thereby realizing automated cleaning and eliminating the manual cleaning process. Specifically, the camera 112 is located above the photovoltaic panel 300 to capture the surface image of the photovoltaic panel 300, and uploads it to the control system 900 through the 5G network for analysis and decision-making, and intelligently matches the required high-pressure nozzle 650, output pressure and output flow according to the contamination condition.

[0059] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-cleaning offshore photovoltaic power generation system, comprising a support frame (200) arranged on a foundation platform (100), characterized in that: A plurality of photovoltaic panels (300) are arranged obliquely on the support frame (200), a fresh water collection and supply mechanism (400) is provided on the higher side of the photovoltaic panel (300), a mobile loading mechanism (500) is provided on the higher side of the support frame (200), a conversion cleaning mechanism (600) is provided on the mobile loading mechanism (500), the conversion cleaning mechanism (600) is intermittently driven by a linkage mechanism (700) and connected to a scrubbing mechanism (800) provided on the side of the photovoltaic panel (300), and further includes a detection system (110) provided on the upper side of the photovoltaic panel (300), and the detection system (110) is communicatively connected to a control system (900); The conversion cleaning mechanism (600) includes a mounting frame (610), a water outlet pipe (630) rotatably connected to the mounting frame (610) via a rotating shaft (620), a rotating motor built into the rotating shaft (620), the water outlet pipe (630) communicating with a soft water pipe (460) via a conversion assembly, at least three flow cavities (640) being provided inside the water outlet pipe (630), each flow cavity (640) being connected to a plurality of nozzles (650), forming an array of three rows of nozzles (650) with different angles; The conversion assembly includes three conducting holes (660) provided on the water outlet pipe (630), one conducting hole (660) provided on each flow cavity (640), and further includes a joint pipe (670) provided on the mounting frame (610), one end of the joint pipe (670) being in communication with the soft water pipe (460), and the other end of the joint pipe (670) being provided with a conducting cover (680), the conducting cover (680) being rotatably sealedly connected to the conducting hole (660) of the water outlet pipe (630); The water outlet pipes (630) on both sides of the conducting hole (660) are provided with limit plates (631), the limit plates (631) are provided with arc-shaped grooves (632), the conducting cover (680) is provided with fixed plates (681) corresponding to the limit plates (631), the fixed plates (681) are provided with guide rods (682), and the guide rods (682) are slidably arranged in the arc-shaped grooves (632); The scrubbing mechanism (800) comprises a scrubbing rod (810) rotatably connected to both sides of the photovoltaic panel (300) via a torsion shaft, a scrubbing brush in contact with the surface of the photovoltaic panel (300) being provided at the lower portion of the scrubbing rod (810), and the scrubbing rod (810) is drivingly connected to the linkage mechanism (700); The linkage mechanism (700) includes a linkage rod (710) fixed at one end to the mounting frame (610), the linkage rod (710) being in contact with and connected to the scrubbing rod (810), a water collecting trough (120) being provided at the lower end of the support frame (200), the water collecting trough (120) being connected to the collection box (410) via a reflux assembly, the scrubbing mechanism (800) further including a bottom scraping brush (830) connected to the water collecting trough (120) via an elastic member (820), the linkage mechanism (700) further including a roller (730) arranged on the side of the photovoltaic panel (300), one end of a pull rope (720) being connected to the bottom scraping brush (830), the other end of the pull rope (720) being passed around the roller (730) and then connected to the end of the scrubbing rod (810).

2. A self-cleaning offshore photovoltaic power generation system according to claim 1, characterized in that: The support frame (200) comprises a plurality of vertical support rods (210) fixed on a foundation platform (100), a plurality of oblique rods (220) are connected to the upper portions of the vertical support rods (210), and the photovoltaic panels (300) are fixedly mounted on the oblique rods (220).

3. A self-cleaning offshore photovoltaic power generation system according to claim 1, characterized in that: The fresh water collection and supply mechanism (400) comprises a collection box (410) fixedly mounted on a foundation platform (100); a rainwater collection trough (420) is provided on the top of the collection box (410); a filter element (430) is provided on the bottom of the rainwater collection trough (420); a drive motor (440) is fixedly mounted on the upper portion of the collection box (410); the drive motor (440) drives a high-pressure centrifugal pump (450); a water inlet pipe of the high-pressure centrifugal pump (450) extends to the bottom of the rainwater collection box (410); and the high-pressure centrifugal pump (450) is connected to a conversion and cleaning mechanism (600) via a soft water pipe (460).

4. A self-cleaning offshore photovoltaic power generation system according to claim 1, characterized in that: The mobile loading mechanism (500) comprises a driving sprocket (510) arranged on one side of the upper end of the support frame (200) and a driven sprocket (520) on the other side, the driving sprocket (510) being drivingly connected to a servo motor (530) arranged on the support frame (200), a crawler belt (540) being rotatably provided between the driving sprocket (510) and the driven sprocket (520), and the mounting frame (610) being fixedly arranged on the crawler belt (540).

5. The self-cleaning offshore photovoltaic power generation system according to claim 1, characterized in that: The detection system (110) includes a mounting column (111) disposed on a foundation platform (100), a camera (112) being provided on the mounting column (111), the camera (112) being communicatively connected to a control system (900), and the control system (900) being further electrically connected to a drive motor (440), a servo motor (530), and a rotary motor.

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