Photovoltaic panel cleaning and cooling device

Abstract

The invention provides a photovoltaic panel cleaning and cooling device which comprises a photovoltaic panel cleaning and cooling system and a particle cleaning and cooling system. The photovoltaic panel cleaning and cooling system controls the surface temperature and cleanliness of a photovoltaic panel through particle washing and comprises a particle releasing device, a particle flow control device, a particle collecting device, a photovoltaic panel cleaning and cooling system moving device and a photovoltaic panel surface cleanliness and temperature measuring device. The particle cleaning and cooling system is used for cleaning and cooling particles from the photovoltaic panel cleaning and cooling system and comprises a particle supply device, a particle recovery device, a particle cleaning and cooling device and a particle cleaning and cooling system moving device. Large particles with low hardness are used for washing the surface of the photovoltaic panel to clean and cool the photovoltaic panel, all-weather operation can be achieved, waterless cleaning can be achieved, the cleaning and cooling efficiency is high, and operation and maintenance are easy.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic equipment, and in particular to a photovoltaic panel cleaning and cooling device. Background Art

[0002] my country has abundant solar energy resources. The photovoltaic industry has developed rapidly in recent years and has become a leader in the global photovoltaic industry. Most of my country's large-scale ground photovoltaic power stations are located in grassland deserts and desert areas. A large amount of dust, dirt and other impurities are often deposited on the surface of photovoltaic panels, causing a serious decrease in power generation efficiency, and it is very easy to cause hot spot effects on photovoltaic panels, reducing the life of photovoltaic panels. Cleaning and maintenance of photovoltaic panel surfaces has become an important part of increasing the power generation of photovoltaic power stations and extending the life of photovoltaic panels, and there is a huge market demand.

[0003] Most of the existing cleaning technologies use water spray cleaning and waterless cleaning methods, and are developing in the direction of intelligence and automation. The water spray cleaning method is not applicable in areas with tight water resources, especially desert areas, and the huge water consumption causes a waste of water resources. At the same time, the cleaned panel will be covered with dust again due to the relatively wet surface, and will also cause water stains. In winter, it is very easy for the surface of the photovoltaic panel to freeze when using water for cleaning, making cleaning impossible. The commonly used waterless cleaning method is a roller brush. The waterless roller brush cleaning is very laborious and inefficient, and usually causes irreparable scratches on the panel surface, thereby reducing the efficiency of the photovoltaic panel.

[0004] In addition, the surface temperature of photovoltaic panels is also a key factor affecting power generation efficiency. The output power of photovoltaic modules will decrease as the temperature increases. Generally, the efficiency of photovoltaic modules is highest at 25°C, and the actual operating temperature is usually higher than this value. Especially in the hot season in the northwest region, the surface temperature of photovoltaic panels can reach 100°C, which will significantly reduce the power generation efficiency and life of photovoltaic panels. Therefore, controlling the temperature of photovoltaic panels is crucial to improving power generation efficiency and economic benefits. At present, photovoltaic power generation is basically overhead air-cooled natural cooling, with large thermal resistance and poor heat exchange effect. The heat exchange effect can be improved by setting a heat exchanger on the back of the photovoltaic panel. At present, most photovoltaic panel cooling devices are indirect heat exchange, with limited heat exchange capacity, and each photovoltaic panel needs to be modified, which is costly.

[0005] Therefore, there is an urgent need in the art for an all-weather, waterless, and efficient photovoltaic panel cleaning device and cooling device. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a photovoltaic panel cleaning and cooling device, which can clean and cool the photovoltaic panel by flushing the surface of the photovoltaic panel with large particles with lower hardness. It can operate around the clock, has high cleaning and cooling efficiency, and is simple to operate and maintain.

[0007] In order to achieve the above object, the present invention adopts the following scheme.

[0008] A photovoltaic panel cleaning and cooling device, the device comprising: a photovoltaic panel cleaning and cooling system and a particle cleaning and cooling system;

[0009] The photovoltaic panel cleaning and cooling system controls the surface temperature and cleanliness of the photovoltaic panel by particle flushing; the particle cleaning and cooling system is used to clean and cool the particles from the photovoltaic panel cleaning and cooling system, and provide clean and constant temperature particles to the photovoltaic panel cleaning and cooling system.

[0010] Optionally, the photovoltaic panel cleaning and cooling system includes: a particle releasing device; the particle releasing device includes: an air compression device, a particle storage bin and a battery; the battery provides electrical energy for the photovoltaic panel cleaning and cooling system.

[0011] Optionally, the particle storage bin is used to store particles from the particle cleaning and cooling system and to deliver particles to the particle flow control device, and is provided with a particle storage bin charging port, a particle uniform distribution device, a particle discharge speed control device, a particle discharge valve, a vibrator and a particle storage bin discharge port;

[0012] Optionally, the photovoltaic panel cleaning and cooling system further includes: a particle flow control device; the particle flow control device includes: a particle flow control device inlet, a support plate, a support frame, a baffle, an auxiliary cleaning device and an auxiliary flow device.

[0013] Optionally, the photovoltaic panel cleaning and cooling system further comprises: a particle collecting device, a photovoltaic panel cleaning and cooling system moving device, and a photovoltaic panel surface cleanliness and temperature measuring device; the particle collecting device comprises a particle collecting bin and a particle discharging device; the photovoltaic panel cleaning and cooling system moving device is used to drive the photovoltaic panel cleaning and cooling system to move on the upper surface of the photovoltaic panel group; the photovoltaic panel surface cleanliness and temperature measuring device is used to identify the location of the adhesion and dust accumulation, the surface cleanliness and temperature of the photovoltaic panel group;

[0014] Optionally, the particle cleaning and cooling system includes: a particle feeding device, which is used to provide clean particles to the particle storage bin.

[0015] Optionally, the particle cleaning and cooling system further includes: a particle recovery device, wherein the particle recovery device is used to recover particles from the particle collection bin.

[0016] Optionally, the particle feeding device provides particles for cooling and cleaning to the particle releasing device of the photovoltaic panel cleaning and cooling system, and the particle recovery device is used to recover particles from the particle collecting device of the photovoltaic panel cleaning and cooling system.

[0017] Optionally, the particle recovery device and the particle feeding device are both provided with a particle conveying device.

[0018] Optionally, the particle cleaning cooling system further includes: a particle cleaning cooling device and a particle cleaning cooling system moving device.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] 1) The surface of the photovoltaic panel is cleaned and cooled by particle flushing. The device can achieve completely waterless cleaning and cooling of the photovoltaic panel, which is particularly suitable for areas with drought, little rain and heavy dust.

[0021] 2) A row of photovoltaic panels in a photovoltaic panel group can be cleaned and cooled in a single operation, with high cleaning efficiency.

[0022] 3) The particles flow in the channel formed by the particle flow control device and the surface of the photovoltaic panel group. The particles are not affected by the external environment, and the cleaning and cooling of the photovoltaic panel surface can be achieved all-weather.

[0023] 4) The cleaning and cooling strength can be adjusted by adjusting the particle velocity, particle diameter, particle roughness and auxiliary flow device, and it has strong adaptability to different types of impurities such as dust, dirt, etc. in different regions.

[0024] 5) The particle flushing and auxiliary cleaning device are used to clean the sticky impurities such as dust and bird droppings on the surface of the photovoltaic panel, with strong cleaning ability and good cleaning effect.

[0025] 6) The particles used for cleaning can be recycled. The particles can be made of aluminum particles with lower hardness and lower cost, and the operation and maintenance costs are low.

[0026] 7) The photovoltaic panel cleaning cooling system and the particle cleaning cooling system are moved within the photovoltaic power station through a mobile device, thereby achieving cleaning and cooling of the photovoltaic panels within the entire photovoltaic power station.

[0027] 8) The particle heat exchanger can also heat the particles for defrosting the surface of photovoltaic panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0029] Figure 1 This is a schematic axial view of a main body component of an embodiment of the present invention;

[0030] Figure 2 It is a front view of the main body component of an embodiment of the present invention;

[0031] Figure 3 It is a right side view of the main body component of an embodiment of the present invention;

[0032] Figure 4 It is an axial side view of a photovoltaic panel cleaning and cooling system (excluding a power supply photovoltaic panel) according to an embodiment of the present invention;

[0033] Figure 5 This is a front view of a photovoltaic panel cleaning and cooling system (excluding a power supply photovoltaic panel) according to an embodiment of the present invention;

[0034] Figure 6 It is a left view of a photovoltaic panel cleaning and cooling system (excluding a power supply photovoltaic panel) according to an embodiment of the present invention;

[0035] Figure 7 It is an axial side view of a photovoltaic panel cleaning and cooling system (including a power supply photovoltaic panel) according to an embodiment of the present invention;

[0036] Figure 8 A bottom view of a photovoltaic panel cleaning and cooling system according to an embodiment of the present invention;

[0037] Fig. 9 A left side view of a particle cleaning cooling system according to an embodiment of the present invention;

[0038] In the accompanying drawings: 1 is a particle release device, 1-1 is an air compression device, 1-2 is a particle storage bin, 1-3 is a particle storage bin loading port, 1-4 is a particle uniform distribution device, 1-5 is a particle discharge speed control device, 1-6 is a particle discharge valve, 1-7 is a vibrator, 1-8 is a battery, 1-9 is a particle storage bin discharge port, 2 is a particle flow control device, 2-1 is an inlet distance adjustment device, 2-2 is a particle speed and direction adjustment device, 2-3 is a support plate, 2-4 is a support frame, 2-5 is a baffle, 2-6 is a baffle lifting device, 2-7 is a roller brush, 2-8 is a water spray device, 2-9 is a high-pressure jet device, 2-10 is a vibration Device, 2-11 is a power supply photovoltaic panel, 2-12 is a particle flow control device feed port, 3 is a particle collecting device, 3-1 is a particle collecting bin, 3-2 is a particle collecting bin entrance distance control device, 3-3 is a particle discharging device, 3-4 is a particle collecting bin entrance, 4 is a photovoltaic panel cleaning and cooling system mobile device, 5 is a photovoltaic panel surface cleanliness and temperature measuring device, 6 is a particle feeding device, 7 is a particle recovery device, 8 is a particle cleaning and cooling device, 8-1 is a particle and impurity separation device, 8-2 is a particle heat exchanger, 8-3 is a particle storage and insulation bin, 8-4 is a blower, 9 is a particle cleaning and cooling system mobile device, and 10 is a photovoltaic panel group. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1 to 9The present invention is further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant contents, rather than to limit the present invention. It is also necessary to explain that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as exemplary features that provide various details of some ways in which the technical concept of the present invention can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present invention.

[0042] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0043] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0044] For descriptive purposes, the present invention may use spatially relative terms such as "below", "beneath", "under", "lower", "above", "upper", "above", "higher", and "side (e.g., as in "sidewall")" to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "below" or "beneath" other components or features would then be positioned "above" the other components or features. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0045] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0046] In one embodiment, the present invention provides a photovoltaic panel cleaning and cooling device, the device comprising: a photovoltaic panel cleaning and cooling system and a particle cleaning and cooling system;

[0047] The photovoltaic panel cleaning and cooling system controls the surface temperature and cleanliness of the photovoltaic panel by particle flushing; the particle cleaning and cooling system is used to clean and cool the particles from the photovoltaic panel cleaning and cooling system, and provide clean and constant temperature particles to the photovoltaic panel cleaning and cooling system.

[0048] Optionally, the photovoltaic panel cleaning and cooling system includes: a particle releasing device; the particle releasing device includes: an air compression device, a particle storage bin and a battery; the battery provides electrical energy for the photovoltaic panel cleaning and cooling system.

[0049] Optionally, the particle storage bin is used to store particles from the particle cleaning and cooling system and to deliver particles to the particle flow control device, and is provided with a particle storage bin charging port, a particle uniform distribution device, a particle discharge speed control device, a particle discharge valve, a vibrator and a particle storage bin discharge port;

[0050] Optionally, the photovoltaic panel cleaning and cooling system further includes: a particle flow control device; the particle flow control device includes: a particle flow control device inlet, a support plate, a support frame, a baffle, an auxiliary cleaning device and an auxiliary flow device.

[0051] Optionally, the photovoltaic panel cleaning and cooling system further comprises: a particle collecting device, a photovoltaic panel cleaning and cooling system moving device, and a photovoltaic panel surface cleanliness and temperature measuring device; the particle collecting device comprises a particle collecting bin and a particle discharging device; the photovoltaic panel cleaning and cooling system moving device is used to drive the photovoltaic panel cleaning and cooling system to move on the upper surface of the photovoltaic panel group; the photovoltaic panel surface cleanliness and temperature measuring device is used to identify the location of the adhesion and dust accumulation, the surface cleanliness and temperature of the photovoltaic panel group;

[0052] Optionally, the particle cleaning and cooling system includes: a particle feeding device, which is used to provide clean particles to the particle storage bin.

[0053] Optionally, the particle cleaning and cooling system further includes: a particle recovery device, wherein the particle recovery device is used to recover particles from the particle collection bin.

[0054] Optionally, the particle feeding device provides particles for cooling and cleaning to the particle releasing device of the photovoltaic panel cleaning and cooling system, and the particle recovery device is used to recover particles from the particle collecting device of the photovoltaic panel cleaning and cooling system.

[0055] Optionally, the particle recovery device and the particle feeding device are both provided with a particle conveying device.

[0056] Optionally, the particle cleaning cooling system further includes: a particle cleaning cooling device and a particle cleaning cooling system moving device.

[0057] In one embodiment, the present invention provides a photovoltaic panel cleaning and cooling device, the device comprising: a photovoltaic panel cleaning and cooling system and a particle cleaning and cooling system, such as Figure 1 As shown, the photovoltaic panel cleaning and cooling system controls the surface temperature and cleanliness of the photovoltaic panel by particle flushing, and is used to clean the photovoltaic panels in the photovoltaic panel group. The particle cleaning and cooling system is used to clean and cool the particles from the photovoltaic panel cleaning and cooling system, and provide clean and constant temperature particles to the photovoltaic panel cleaning and cooling system, such as Figures 1 to 3As shown. The photovoltaic panel cleaning and cooling system and the particle cleaning and cooling system can be moved in the photovoltaic power station through the photovoltaic panel cleaning and cooling system mobile device 4 and the particle cleaning and cooling system mobile device 9 to complete the cleaning and cooling of photovoltaic panel groups 10 at different positions. The photovoltaic panel cleaning and cooling system mobile device 4 and the particle cleaning and cooling system mobile device 9 are rail vehicles or track vehicles or wheel vehicles or a combination of rail vehicles, track vehicles, and wheel vehicles. The photovoltaic panel cleaning and cooling system mobile device 4 is provided with a photovoltaic panel position detection device for locating the position of the photovoltaic panel cleaning and cooling system.

[0058] Wherein, when the photovoltaic panel position detection device performs positioning, the following steps are included:

[0059] 1. Collect data about the surrounding environment;

[0060] Use sensors (such as laser rangefinders, ultrasonic sensors, infrared sensors, cameras, etc.) integrated into the mobile device of the photovoltaic panel cleaning and cooling system to collect data about the surrounding environment; the sensors can be installed at the front or bottom of the system to obtain the exact location information of the photovoltaic panel.

[0061] 2. Process the collected data to determine the position deviation of the current photovoltaic panel cleaning cooling system relative to the target photovoltaic panel group;

[0062] Use algorithms to analyze images or signals, such as finding specific boundaries or markers of photovoltaic panels through pattern recognition technology.

[0063] 3. Based on the analysis results, calculate the best path from the current position to the target photovoltaic panel, taking into account factors such as obstacle avoidance; adjust the moving direction and speed in real time to ensure a smooth and accurate approach to the designated photovoltaic panel.

[0064] 4. When approaching the target photovoltaic panel, slow down the movement speed and use high-precision sensors (such as photoelectric sensors) to further confirm the final stop position;

[0065] Adjust the height of the support plate and baffle to keep an appropriate distance from the surface of the photovoltaic panel, and prepare to start the cleaning and cooling operation; during the whole process, continuously monitor the difference between the actual position and the expected position, and make fine adjustments when necessary to ensure that the system always maintains a stable working posture during the whole cleaning and cooling process.

[0066] 5. After completing the cleaning and cooling of a single or multiple photovoltaic panels, move the system to the next operating point or return to the initial position.

[0067] The above steps ensure that the photovoltaic panel position detection device can efficiently and accurately complete the positioning task, thereby supporting the automated operation of the photovoltaic panel cleaning and cooling system. In addition, the device has a certain degree of flexibility to adapt to photovoltaic power stations of different sizes and layouts, and can work stably under severe weather conditions.

[0068] like Figures 1 to 4 As shown, the photovoltaic panel cleaning and cooling system comprises: a particle release device 1, a particle flow control device 2, a particle collection device 3, a photovoltaic panel cleaning and cooling system moving device 4, and a photovoltaic panel surface cleanliness and temperature measuring device 5. The particle release device 1, the particle flow control device 2 and the particle collection device 3 are connected in sequence. The particles are released from the particle release device 1 into the particle flow control device 2, where the photovoltaic panel is cleaned and cooled, and finally flow into the particle collection device 3. The photovoltaic panel cleaning and cooling system moving device 4 controls the movement of the photovoltaic panel cleaning and cooling system in the photovoltaic panel group 10.

[0069] like Figure 4 and Figure 6 As shown, the particle release device 1 includes: an air compression device 1-1, a particle storage bin 1-2 and a battery 1-8. The battery 1-8 provides electrical energy for the photovoltaic panel cleaning and cooling device, and is charged through the power supply photovoltaic panel 2-11. The air compression device 1-1 supplies air to the high-pressure jet device 2-9. The particle storage bin 1-2 is used to store particles from the particle cleaning and cooling system and to convey particles to the particle flow control device 2, which is provided with a particle storage bin charging port 1-3, a particle uniform distribution device 1-4, a particle discharge speed control device 1-5, a particle discharge valve 1-6, a vibrator 1-7 and a particle storage bin discharge port 1-9, as shown in FIG. Figures 4 to 6 As shown. The particles from the particle cleaning and cooling system enter the particle storage bin 1-2 through the particle storage bin charging port 1-3, and the particles are evenly distributed in the particle storage bin 1-2 through the particle uniform distribution device 1-4. The particle discharge valve 1-6 controls the flow rate of particles entering the particle flow control device 2, and the particle discharge speed control device 1-5 controls the initial velocity of particles entering the particle flow control device 2. The vibrator is used to promote the flow of particles in the particle storage bin 1-2.

[0070] The particle flow control device 2 comprises: a particle flow control device inlet 2-12, a support plate 2-3, a support frame 2-4, a baffle 2-5, an auxiliary cleaning device and an auxiliary flow device. The support plate 2-3 and the support frame 2-4 are connected to the particle release device 1 and the particle collection device 3, and the support frame 2-4 is located on the top of the support plate 2-3, such as Figure 4 and Figure 5The width of the support plate 2-3 is the same as the width of a single photovoltaic panel, and the length of the support plate 2-3 is greater than the length of a row of photovoltaic panels in the photovoltaic panel group 10. The particle flow control device feed port 2-12 is provided with a feed port distance adjustment device 2-1 and a particle speed and direction adjustment device 2-2, as shown in FIG. Figure 4 , Figure 6 and Figure 8 The feed inlet distance adjustment device 2-1 is used to control the distance between the feed inlet 2-12 of the particle flow control device and the upper surface of the photovoltaic panel group 10, so as to prevent the photovoltaic panel cleaning and cooling system from contacting the photovoltaic panel group 10 when moving, thereby causing damage to the photovoltaic panel. The particle speed and direction adjustment device 2-2 is used to control the speed and movement direction of the particles at the feed inlet 2-12 of the particle flow control device, such as Figure 6 and Figure 8 As shown, by adjusting the speed and direction of the particles flowing into the particle flow control device 2, the contact state and flushing frequency of the particles with the surface of the photovoltaic panel are controlled to achieve particle cleaning force adjustment and temperature control. The baffle 2-5 is located at the bottom of the support plate and close to the side of the support plate. There are two baffles 2-5 located on both sides of the bottom of the support plate. The distance between the two baffles 2-5 is slightly larger than the width of the photovoltaic panel cell. Figure 8 The baffle 2-5 is provided with a baffle lifting device 2-6, which is located on the top of the support plate 2-3 and is used to control the distance between the baffle 2-5 and the surface of the photovoltaic panel group 10, as shown in FIG. Figure 4 and Figure 5 When the photovoltaic panel is started to be cleaned or cooled, the baffle 2-5 is controlled to descend to the surface of the photovoltaic panel group 10, and the baffle 2-5, the support plate 2-3 and the photovoltaic panel group 10 form a particle flow channel that is closed on all sides. The auxiliary cleaning device is located on the side of the support plate 2-3, and includes a roller brush 2-7 and a water spray device 2-8, as shown in FIG. Figures 4 to 8 The photovoltaic panel surface is cleaned of dust, bird droppings and other impurities by means of a roller brush 2-7 and / or a water spray device 2-8 and / or a particle scouring. The auxiliary flow device is located on the top of the support plate 2-3, and includes a high-pressure jet device 2-9 and a vibration device 2-10, such as Figure 4 and Figure 5 As shown. The high-pressure jet device 2-9 is connected to the air compression device 1-1, and air is blown into the closed particle flow channel formed by the baffle 2-5, the support plate 2-3 and the photovoltaic panel group 10 through the high-pressure jet device 2-9, so that the dust on the surface of the photovoltaic panel is fluidized and the surface temperature of the photovoltaic panel is reduced. The vibration of the vibration device 2-10 and / or the high-pressure jet device 2-9 promotes the flow of particles and dust. A power supply photovoltaic panel 2-11 is installed on the top of the support frame 2-4, as shown in FIG. Figure 7 As shown, it is used to charge the battery and / or power the photovoltaic panel cleaning cooling system power equipment.

[0071] like Figures 6 to 8As shown, the particle collecting device 3 includes: a particle collecting bin 3-1 and a particle discharging device 3-3. The particle collecting bin 3-1 collects particles and impurities from the particle flow control device 2. A particle collecting bin entrance distance control device 3-2 is provided at the particle collecting bin entrance 3-4 to control the distance between the particle collecting bin entrance 3-4 and the lower surface of the photovoltaic panel group 10 to prevent the photovoltaic panel cleaning cooling system from contacting the photovoltaic panel when moving.

[0072] The photovoltaic panel surface cleanliness and temperature measuring device 5 is used to identify the location of dust accumulation, the photovoltaic panel surface cleanliness and temperature, and then determine the photovoltaic panel location that needs to be cleaned and cooled, and the location that needs auxiliary cleaning device to assist in cleaning.

[0073] The particle cleaning and cooling system comprises: a particle feeding device 6, a particle recovery device 7, a particle cleaning and cooling device 8 and a particle cleaning and cooling system moving device 9. The particle feeding device 6 provides particles for cooling and cleaning to a particle releasing device 1 of the photovoltaic panel cleaning and cooling system. The particle recovery device 7 is used to recover particles from a particle collecting device 3 of the photovoltaic panel cleaning and cooling system. Figures 1 to 3 shown.

[0074] The particle cleaning and cooling device 8 is provided with a particle and impurity separation device 8-1, a particle heat exchanger 8-2, a particle storage and insulation bin 8-3 and a blower 8-4. The blower 8-4 is connected to the particle heat exchanger 8-2 for cooling the particles. The particle and impurity separation device 8-1, the particle heat exchanger 8-2 and the particle storage and insulation bin 8-3 are connected in sequence. Fig. 9 The particle heat exchanger 8-2 and the particle storage insulation bin 8-3 are provided with an insulation layer outside, and the particle heat exchanger 8-2 is connected to other external heat sources to heat the particles and heat and defrost the photovoltaic panel surface in winter.

[0075] The particle recovery device 7 is used to recover particles from the particle collection bin 3-1, and the particle feeding device 6 is used to provide clean particles to the particle storage bin 1-2. The particle recovery device 7, the particle feeding device 6 and the particle storage insulation bin 8-3 are provided with a particle conveying device, which has the ability to convey particles horizontally and / or vertically, and is a screw feeder or a conveyor belt or an elevator or a combination of a screw feeder, a conveyor belt and an elevator. When the power is sufficient, the photovoltaic panel group 10 provides power to the storage battery 1-8. The hardness of the particles used to clean and cool the photovoltaic panels is lower than the hardness of the surface material of the photovoltaic panels, and has good fluidity and is not easy to wear.

[0076] When the photovoltaic cleaning and cooling device of the present invention is in operation, the particles cleaned and cooled by the particle cleaning and cooling system are first fed into the particle releasing device 1 of the photovoltaic panel cleaning and cooling system through the particle feeding device 6, and the photovoltaic panel cleaning and cooling system moves to the photovoltaic panel group 10 that needs to be cleaned or cooled. The entrance distance adjustment device 2-1 and the particle collection bin entrance distance control device 3-2 respectively adjust the distance between the entrance and the surface of the photovoltaic panel group 10. The baffle lifting device 2-6 controls the baffle 2-5 to descend to the surface of the photovoltaic panel group 10. At this time, the baffle 2-5, the support plate 2-3 and the photovoltaic panel group 10 form a particle flow channel that is closed on all sides. The photovoltaic panel surface cleanliness and temperature measuring device 5 detects the surface cleanliness and temperature of the photovoltaic panel to determine the required cleaning and cooling strength. The particle discharge valve 1-6 is opened, and the particle discharge speed control device 1-5 controls the speed of flowing out of the particle storage bin 1-2. The particle speed and direction adjustment device 2-2 adjusts the speed and direction of the particles entering the particle flow channel. According to the particle flow and cleaning conditions, choose whether to turn on the auxiliary cleaning device and the auxiliary flow device. The cleaned and cooled particles enter the particle collection bin 3-1. When the particle collection bin 3-1 is full of particles or the photovoltaic clean cooling system is finished working, the particle discharge device 3-3 transports the particles and impurities to the particle cleaning and cooling device 8 through the particle recovery device 7. The particles sent to the particle cleaning and cooling device 8 are first separated from the impurities by the particle and impurity separation device 8-1, and then the particles enter the particle heat exchanger 8-2 for cooling. The cleaned and cooled particles enter the particle storage and insulation bin for standby use.

[0077] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments / methods or examples described in this specification and the features of the different embodiments / methods or examples, unless they are contradictory.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] It should be understood by those skilled in the art that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A photovoltaic panel cleaning and cooling device, characterized in that: The device comprises: a photovoltaic panel cleaning cooling system and a particle cleaning cooling system; The photovoltaic panel cleaning and cooling system controls the surface temperature and cleanliness of the photovoltaic panel by particle flushing; the particle cleaning and cooling system is used to clean and cool the particles from the photovoltaic panel cleaning and cooling system, and provide clean and constant temperature particles to the photovoltaic panel cleaning and cooling system.

2. The device according to claim 1, characterized in that Preferably, the photovoltaic panel cleaning and cooling system comprises: a particle releasing device (1); the particle releasing device (1) comprises: an air compression device (1-1), a particle storage bin (1-2) and a battery (1-8); the battery (1-8) provides electrical energy for the photovoltaic panel cleaning and cooling system.

3. The device according to claim 2, characterized in that The particle storage bin (1-2) is used to store particles from a particle cleaning and cooling system and to deliver particles to a particle flow control device (2), and is provided with a particle storage bin charging port (1-3), a particle uniform distribution device (1-4), a particle discharge speed control device (1-5), a particle discharge valve (1-6), a vibrator (1-7) and a particle storage bin discharge port (1-9).

4. The device according to claim 2, characterized in that The photovoltaic panel cleaning and cooling system further comprises: a particle flow control device (2); the particle flow control device (2) comprises: a particle flow control device feed port (2-12), a support plate (2-3), a support frame (2-4), a baffle (2-5), an auxiliary cleaning device and an auxiliary flow device.

5. The device according to claim 2, characterized in that The photovoltaic panel cleaning and cooling system further comprises: a particle collecting device (3), a photovoltaic panel cleaning and cooling system moving device (4) and a photovoltaic panel surface cleanliness and temperature measuring device (5); the particle collecting device (3) comprises a particle collecting bin (3-1) and a particle discharging device (3-3); the photovoltaic panel cleaning and cooling system moving device (4) is used to drive the photovoltaic panel cleaning and cooling system to move on the upper surface of the photovoltaic panel group (10); the photovoltaic panel surface cleanliness and temperature measuring device (5) is used to identify the location of the adhesion and dust accumulation, the surface cleanliness and temperature of the photovoltaic panel group (10).

6. The device according to claim 5, characterized in that The particle cleaning and cooling system comprises: a particle supply device (6) for supplying clean particles to the particle storage bin (1-2).

7. The device according to claim 6, characterized in that The particle cleaning and cooling system further comprises: a particle recovery device (7), wherein the particle recovery device (7) is used to recover particles from the particle collection bin (3-1).

8. The device according to claim 7, characterized in that The particle supply device (6) provides particles for cooling and cleaning to the particle release device (1) of the photovoltaic panel cleaning and cooling system, and the particle recovery device (7) is used to recover particles from the particle collection device (3) of the photovoltaic panel cleaning and cooling system.

9. The device according to claim 8, characterized in that The particle recovery device (7) and the particle feeding device (6) are both provided with a particle conveying device.

10. The device according to claim 6, characterized in that The particle cleaning and cooling system further comprises: a particle cleaning and cooling device (8) and a particle cleaning and cooling system moving device (9).

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