Photovoltaic panel cleaning device

Abstract

The invention discloses a photovoltaic panel cleaning device which comprises a base, a moving assembly is installed at the bottom of the base, a rotating platform is rotatably installed on the base, a stand column is arranged on the rotating platform, an air storage pipe is hinged to the stand column, an air inlet hose is arranged on the air storage pipe, one end of the air inlet hose is connected with a high-pressure fan, and the other end of the air inlet hose is connected with a water pump. The other end is communicated with the air knife; the air knife is installed on the lower portion of the air storage pipe, an air outlet is formed in the bottom of the air knife, and the air knife is connected with the air storage pipe through a connecting piece. A push rod motor is arranged on the stand column, one end of the push rod motor is hinged to the stand column, the other end of the push rod motor is hinged to the air storage pipe, and the air storage pipe rotates relative to the stand column along with stretching and retracting of the push rod motor; through the arrangement of the moving assembly, the rotating platform, the push rod motor and the air knife, the photovoltaic panels can be efficiently cleaned in batches, the cleaning cost is reduced, meanwhile, the photovoltaic panels are protected against damage, and the service life of the photovoltaic panels is prolonged.

Description

Technical Field

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

[0002] With the transformation of the global energy structure and the rapid development of renewable energy, large-scale photovoltaic power stations have become important power supply sources worldwide. These power stations are usually composed of thousands of photovoltaic panels, covering a vast area to maximize the capture and utilization of solar energy. However, photovoltaic panels are exposed to the outdoor environment for a long time and will inevitably accumulate impurities such as dust, bird droppings, leaf debris, and salt spray. These pollutants not only block sunlight, reducing the light energy received by the photovoltaic panels, but also may cause the surface temperature of the photovoltaic panels to rise, further reducing the power generation efficiency.

[0003] Traditional cleaning methods for photovoltaic panels in large-scale photovoltaic power stations mainly include manual cleaning and high-pressure water gun flushing. Although manual cleaning can handle each corner meticulously, in the face of thousands of photovoltaic panels, its efficiency is low, the cost is high, and there is a certain safety risk to the operators. While high-pressure water gun flushing has a fast cleaning speed, it often consumes a large amount of water resources and may damage the protective film on the surface of the photovoltaic panels due to excessive water pressure, shortening the service life of the photovoltaic panels.

[0004] Therefore, there is an urgent need for a cleaning device that can clean the photovoltaic panels of large-scale photovoltaic power stations efficiently, centrally, and safely, so as to improve the power generation efficiency of the photovoltaic panels, reduce the cleaning cost, and at the same time protect the photovoltaic panels from damage and extend their service life. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a photovoltaic panel cleaning device to improve the efficiency and safety of cleaning operations.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A photovoltaic panel cleaning device includes a base. A moving component is installed at the bottom of the base. The base is rotatably installed with a slewing platform. A column is provided on the slewing platform. The column includes an outer vertical pipe and an inner vertical pipe that are sleeved with each other. The bottom of the inner vertical pipe is fixed on the base. An air storage pipe is hinged on the outer vertical pipe. An air inlet hose is provided on the air storage pipe. One end of the air inlet hose is connected to a high-pressure blower, and the other end is communicated with an air knife. The air knife is installed below the air storage pipe. An air outlet is provided at the bottom of the air knife. The air knife is connected to the air storage pipe through a connecting piece. A push rod motor is provided on the column. One end of the push rod motor is hinged on the column, and the other end is hinged on the air storage pipe. As the push rod motor expands and contracts, the air storage pipe rotates relative to the column. Through the settings of the moving component, the slewing platform, the push rod motor, and the air knife, the photovoltaic panels can be cleaned efficiently and in batches, reducing the cleaning cost. At the same time, the photovoltaic panels are protected from damage and their service life is extended.

[0007] Preferably, two rows of protection wheels are installed on the air storage pipe. The two rows of protection wheels are symmetrically distributed on both sides of the air storage pipe, and multiple protection wheels are provided along the length direction of each row of protection wheels. The protection wheels are rotatably installed through wheel brackets, and their bottom ends are lower than the bottom of the air knife.

[0008] Preferably, a plurality of flow splitting interfaces are arranged along the length direction of the air storage pipe. The flow splitting interfaces penetrate through the bottom of the air storage pipe and are all connected to the air knife.

[0009] Preferably, the moving component is a crawler-type walking mechanism.

[0010] Preferably, a control cabin is provided on the slewing platform. The column is provided on one side of the control cabin, and a balance weight is provided on the side of the control cabin away from the column. With such a design, the risk of the air storage pipe tipping over due to weight imbalance on the other side of the main column is prevented. A corresponding balance weight is designed at the other end below the column to avoid the equipment from tipping over, improve the balance during use, and also improve the cleaning efficiency, and prevent damage to the photovoltaic panels caused by accidental tipping.

[0011] Preferably, the automatic adjustment system includes a connecting pipe connected to the air storage pipe. A rolling link is movably installed inside the connecting pipe. An automatic adjustment wheel is installed at the bottom of the rolling link. The system also includes a plurality of microswitches, namely Microswitch 1, Microswitch 2, and Microswitch 3. Among them, Microswitch 2 and Microswitch 3 are installed inside the connecting pipe, on the same side or both sides of the rolling link. The horizontal installation height of Microswitch 2 is lower than that of Microswitch 3. Microswitch 2 and Microswitch 3 are respectively connected to and controlled by a push rod motor. Microswitch 1 is located between the top cover of the outer vertical pipe and the top end of the inner vertical pipe in the column, and Microswitch 1 is in a state of being pressed and contacted. The touch switch of Microswitch 1 is installed downward.

[0012] Preferably, the adjustment method of the automatic adjustment system is as follows: (1) Under normal circumstances, the top cover of the outer vertical pipe and the top end of the inner vertical pipe are in close contact, and Microswitch 1 is in a power-off state. When the cleaning system will remain on the photovoltaic panel during continuous downhill, the top cover of the outer vertical pipe and the top end of the inner vertical pipe are separated from contact, and Microswitch 1 is turned on and in an upward power-on state to raise the cleaning system to an appropriate height. (2) During actual use, normally Microswitch 2 is in a power-off state. When cleaning on an uphill slope, the cleaning system will move upward away from the photovoltaic panel, and the automatic adjustment wheel will fall downward, and the rolling link will touch Microswitch 2 to adjust the cleaning system to an appropriate height. (3) During actual use, normally Microswitch 3 is in a power-on state. After the end of one cleaning process, the automatic adjustment wheel drives the rolling link to move upward and touch Microswitch 3 due to falling. Microswitch 3 is powered off, causing the cleaning system to stop operating until the start of the next cleaning process.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Through the settings of the moving component, slewing platform, push rod motor, and air knife, the present invention can efficiently and batch clean the photovoltaic panel, reduce the cleaning cost, and at the same time protect the photovoltaic panel from damage and extend its service life.

[0014] The present invention is suitable for use in gobi and desert areas, and can clean the photovoltaic panel in the case of lack of electricity, solving the problem of the dependence of photovoltaic cleaning on water and electricity in the market. In the present invention, the remaining power of the tracked vehicle is used to drive the high-pressure blower with a belt, saving energy without using mains electricity or batteries. There is almost no water in deserts, gobi beaches, and wastelands, and cleaning with water may be an impossible task. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2Schematic cross-sectional view of the local structure of the present invention.

[0017] Figure 3 It is a schematic structural view of another part of the balance wheel in the present invention.

[0018] Figure 4 It is a schematic structural view of the power-off state when a part of the microswitch in the present invention is pressed.

[0019] Figure 5 It is a schematic structural view of the power-on state when a part of the microswitch in the present invention is opened.

[0020] The reference numerals of the main technical features in the figure are: 1, base; 2, crawler-type traveling mechanism; 3, slewing platform; 4, control cabin; 5, air storage pipe; 6, push rod motor; 7, shunt interface; 8, high-pressure blower; 9, air inlet hose; 10, air knife; 11, air outlet; 12, protection wheel; 13, wheel frame; 14, column; 141, inner vertical pipe; 142, outer vertical pipe; 15, balance weight; 20, connecting pipe; 21, microswitch one; 22, microswitch two; 23, microswitch three; 24, rolling link; 25, automatic adjustment wheel. Detailed implementation manners

[0021] The present invention will be further described below through specific implementation manners and the accompanying drawings.

[0022] As Figures 1-5 , the present invention relates to a photovoltaic panel cleaning device, including a base 1, a crawler-type traveling mechanism 2 is installed at the bottom of the base 1, and the crawler-type traveling mechanism 2 is a prior art, which is a crawler traveling device commonly used on off-road vehicles such as construction machinery and tractors; a slewing platform 3 is installed on the base 1, and the slewing platform 3 is a prior art, which includes components such as a base, a slewing motor, a slewing bearing, a driving gear, and a transmission shaft. The slewing motor is driven by hydraulic pressure to rotate, and through the gear mechanism of the driving gear and the slewing bearing, the transmission shaft is driven to drive the base to rotate.

[0023] Specifically, a control cabin 4 is fixedly installed on the base, and the control cabin 4 is a prior art, which can be a cab commonly used in construction machinery, and a control platform is provided inside to control the operation of the crawler-type traveling mechanism 2, the slewing platform 3, the high-pressure blower 8, and the push rod motor 6; a column 14 is fixedly installed on the front side of the control cabin 4, and a balance weight is installed on the rear side to balance the weight on the base. Such a design prevents the risk of tipping due to weight imbalance on the other side of the main column for the air storage pipe. A corresponding balance weight is designed at the other end below the column to avoid the equipment from tipping over, improve the balance during use, and also improve the cleaning efficiency, and prevent damage to the photovoltaic panel due to accidental tipping.

[0024] In the present invention, the upright column 14 includes an inner vertical pipe 141 and an outer vertical pipe 142. The inner vertical pipe 141 is connected to the base 1, and the outer vertical pipe 142 and the air storage pipe 5 are hinged to each other. This structure has been described in the patent previously applied by the applicant and will not be elaborated here. The air storage pipe 5 extends towards the side away from the control cabin 4, and a push rod motor 6 is provided at its bottom. The push rod motor 6 is a prior art and can be an oil cylinder or other mechanism components with the same function. One end of the push rod motor 6 is hinged to the upright column 14, and the other end is hinged to the bottom of the air storage pipe 5. As the push rod motor 6 expands and contracts, the air storage pipe 5 can rotate relative to the upright column 14, mainly the air storage pipe 5 swings up and down to reach a suitable cleaning height, and the air storage pipe 5 plays a supporting role for the entire cleaning. The inside of the air storage pipe 5 is a diverter structure. One end of it is connected to a high-pressure blower 8 through an air inlet hose 9. The high-pressure blower 8 is fixedly installed on the base and is located at the side end of the control cabin 4. A plurality of diverter interfaces 7 are evenly arranged along the length direction of the air storage pipe 5. The diverter interfaces 7 extend downward, penetrate through the bottom of the air storage pipe and are connected to the air knives 10. The air knives 10 are located below the air storage pipe 5 and are connected to the air storage pipe 5 through connecting pieces. The diverter interfaces 7 penetrate through the connecting pieces and are communicated with the air knives 10. The connecting pieces are connecting branch pipes provided at the bottom of the air storage pipe 5 and are fixedly connected to the air knives 10. The air knives 10 are strip-shaped pipes with an inverted equilateral trapezoid cross-section that is larger at the top and smaller at the bottom. An air outlet 11 in the shape of a strip-shaped groove is opened at its bottom to form a strong blowing wind and improve the cleaning efficiency.

[0025] In the present invention, a row of protection wheels 12 are respectively arranged obliquely below both sides of the air storage pipe 5. The two rows of protection wheels 12 are symmetrically distributed on both sides of the air storage pipe 5. Each row of protection wheels 12 includes a plurality of protection wheels 12, and this row of protection wheels 12 is evenly arranged along the length direction of the air storage pipe 5. The protection wheels 12 are rotatably installed through wheel frames 13, and their bottom ends are lower than the bottom of the air knives 10. The rolling direction of the protection wheels 12 is perpendicular to the length direction of the air storage pipe 5. One end of the wheel frame 13 is fixedly connected to the outer wall of the air storage pipe 5, and it is inclined relative to the air storage pipe 5 and extends outward from the outer wall of the air storage pipe 5. Among them, the protection wheels can protect the photovoltaic panels, prevent them from being crushed or damaged accidentally, and at the same time facilitate the cleaning of the photovoltaic panels and improve the cleaning efficiency.

[0026] In the present invention, an automatic adjustment system can be added as needed to automatically adjust the height of the top rod during continuous uphill or downhill, and automatically cut off the power supply of the rising and falling top rods to maintain the original height when a photovoltaic row is completed.

[0027] In the automatic adjustment system of the present invention, it includes a connecting pipe 20 connected to the air storage pipe 5. A rolling link 24 is movably installed inside the connecting pipe 20. An automatic adjustment wheel 25 is installed at the bottom of the rolling link 24. It also includes a plurality of microswitches, namely microswitch one 21, microswitch two 22 and microswitch three 23. Among them, microswitch two 22 and microswitch three 23 are installed inside the connecting pipe 20, on the same side or both sides of the rolling link 24. The horizontal installation height of microswitch two 22 is lower than that of microswitch three 23. The microswitch two 22 and microswitch three 23 are respectively connected to and controlled by a push rod motor. Among them, microswitch one 21 is located between the top cover of the outer vertical pipe 142 and the top end of the inner vertical pipe 141 in the column 14, and the microswitch one 21 is in a state of being pressed and contacting. The touch switch of the microswitch one 21 is installed downward.

[0028] In the present invention, the microswitch can also adopt other structures, such as a permanent magnetic switch and a corresponding induction device, or other structures, as long as the corresponding functions can be achieved.

[0029] When the cleaning system of the present invention remains on the photovoltaic panel during continuous downhill, the contact between the top cover of the outer vertical pipe and the top end of the inner vertical pipe is disengaged, and the microswitch one 21 is turned on and in an upward power-on state (normally, when the top cover of the outer vertical pipe is in contact with the top end of the inner vertical pipe, the microswitch one 21 is in a power-off state), which plays a role in protecting the photovoltaic panel. At the same time, it also automatically adjusts to improve efficiency and reduce the cumbersome manual operation and labor intensity.

[0030] Specifically, the cleaning system is a structure such as an air storage pipeline and an air knife externally connected with a high-pressure blower, and an existing cleaning spray device driven by a water pump can also be installed when necessary.

[0031] During the actual use of the present invention, when cleaning on an uphill, the cleaning system will move upward away from the photovoltaic panel. The above automatic adjustment wheel 25 will fall downward, and the rolling link 24 will touch the microswitch two 22, and the switch will be turned on and continue to lower downward (normally, the microswitch two 22 is in a power-off state).

[0032] When a photovoltaic cleaning process is completed, due to the principle of center of gravity, the automatic adjustment wheel will directly fall and touch the microswitch three 23, disconnecting the power supply to prevent accidents. During the actual use process, normally the microswitch three 23 is in a power-on state. After a cleaning process is completed, the automatic adjustment wheel 25 drives the rolling link 24 to move upward and touch the microswitch three 23 due to the fall, and the microswitch three 23 is powered off, causing the cleaning system to stop operating until the next cleaning process starts. In this way, the cleaning system can be automatically cut off after cleaning is completed, reducing energy consumption and saving energy.

[0033] The specific implementation process of the present invention is as follows: The crawler-type traveling mechanism 2 is controlled by the control platform to operate. The device moves to the front side of the photovoltaic panel. The slewing platform 3 is controlled to rotate to an appropriate angle, so that the air storage pipe 5 rotates above the photovoltaic panel. Then, the push rod motor 6 is controlled to extend and retract, and the angle of the air knife 10 is adjusted to a position tending to be parallel to the plane of the photovoltaic panel. At this time, the protection wheel 12 will be in contact with the surface of the photovoltaic panel; the high-pressure blower 8 is started, compressed air enters the air knife 10, and the air knife 10 generates an impact air curtain to clean the surface of the photovoltaic panel; at the same time, the crawler-type traveling mechanism 2 operates, and the device can move along the direction in which the photovoltaic panels are arranged, so as to realize batch cleaning of a single row of photovoltaic panels.

[0034] During the cleaning process, when the cleaning system will remain on the photovoltaic panel when the present invention continues to go downhill, the cleaning height is automatically adjusted through the microswitch one 21 and the microswitch two 22, which automatically plays a role in protecting the photovoltaic panel.

[0035] When a photovoltaic row cleaning is completed, the automatic adjustment wheel will directly fall due to the center of gravity principle, touch the microswitch three 23, and cut off the power supply to prevent accidents, reduce energy consumption, and save energy.

[0036] The above are only specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. The present invention can be used for similar products, and any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A photovoltaic panel cleaning device, characterized in that: It includes a base (1). A moving component is installed at the bottom of the base (1). A slewing platform (3) is rotatably installed on the base (1). A column (14) is provided on the slewing platform (3). The column (14) includes an outer vertical pipe (142) and an inner vertical pipe (141) sleeved with each other. The bottom of the inner vertical pipe (141) is fixed on the base (1). An air storage pipe (5) is hinged on the outer vertical pipe (142). An air inlet hose (9) is provided on the air storage pipe (5). One end of the air inlet hose (9) is connected to a high-pressure blower (8), and the other end is communicated with an air knife (10). The air knife (10) is installed below the air storage pipe (5). An air outlet (11) is provided at the bottom of the air knife (10). The air knife (10) is connected to the air storage pipe (5). A push rod motor (6) is provided on the column (14). One end of the push rod motor (6) is hinged on the column (14), and the other end is hinged on the air storage pipe (5). As the push rod motor (6) expands and contracts, the air storage pipe (5) can rotate relative to the column (14).

2. The photovoltaic panel cleaning device according to claim 1, wherein: Two rows of protection wheels (12) are installed on the air storage pipe (5). The two rows of protection wheels (12) are symmetrically distributed on both sides of the air storage pipe (5), and a plurality of protection wheels (12) are provided in each row along the length direction of the air storage pipe (5). The protection wheels (12) are rotatably installed through wheel brackets (13), and the bottom ends thereof are lower than the bottom of the air knife (10).

3. The photovoltaic panel cleaning device according to claim 1, wherein: A plurality of shunt interfaces (7) are arranged along the length direction on the air storage pipe (5). The shunt interfaces (7) penetrate through the bottom of the air storage pipe and are all connected to the air knife (10).

4. A photovoltaic panel cleaning device according to claim 1, characterized in that: The moving component is a crawler-type traveling mechanism (2).

5. The photovoltaic panel cleaning device according to claim 1, wherein: A control cabin (4) is provided on the slewing platform (3). The column (14) is provided on one side of the control cabin (4), and a balance weight (15) is provided on the side of the control cabin (4) away from the column (14).

6. The photovoltaic panel cleaning device according to claim 1, wherein: The air outlet (11) of the air knife (10) is a strip-shaped groove arranged along the length direction of the air knife (10).

7. A photovoltaic panel cleaning device according to any one of claims 1-6, characterized in that: It further includes an automatic adjustment system. The automatic adjustment system includes a connecting pipe (20) connected to the air storage pipe (5). A rolling connecting rod (24) is movably installed inside the connecting pipe (20). An automatic adjustment wheel (25) is installed at the bottom of the rolling connecting rod (24). It also includes a plurality of microswitches, namely microswitch one (21), microswitch two (22) and microswitch three (23).

8. A photovoltaic panel cleaning device according to any one of claims 7, characterized in that: The microswitch two (22) and the microswitch three (23) are installed inside the connecting pipe (20), on the same side or both sides of the rolling connecting rod (24). The horizontal installation height of the microswitch two (22) is lower than the horizontal installation height of the microswitch three (23). The microswitch two (22) and the microswitch three (23) are respectively connected to the push rod motor.

9. A photovoltaic panel cleaning device according to any one of claims 7, characterized in that: The first micro switch (21) is located between the top cover of the outer vertical pipe (142) and the top end of the inner vertical pipe (141), and the first micro switch (21) is in a compression contact state. The touch switch of the first micro switch (21) is installed downward.

10. A photovoltaic panel cleaning device according to any one of claims 7, characterized in that: The adjustment method of the automatic adjustment system is as follows: S1. Under normal circumstances, the top cover of the outer vertical pipe (142) is in close contact with the top end of the inner vertical pipe (141), and the first micro switch (21) is in a power-off state; when the cleaning system will remain on the photovoltaic panel during continuous downhill, the top cover of the outer vertical pipe (142) is separated from the top end of the inner vertical pipe (141), the first micro switch (21) is turned on and in an upward power-on state, and the cleaning system is raised to a suitable height. S2. During actual use, the second micro switch (22) is in a power-off state under normal conditions. If the cleaning is on an uphill slope, the cleaning system will move upward away from the photovoltaic panel, the automatic adjustment wheel (25) will fall downward, and the rolling connecting rod (24) will touch the second micro switch (22) to adjust the cleaning system to a suitable height. S3. During actual use, the third micro switch (23) is in a power-on state under normal conditions. After the end of a cleaning process, the automatic adjustment wheel (25) drives the rolling connecting rod (24) to upwardly touch the third micro switch (23) due to the downward fall, and the third micro switch (23) is powered off, causing the cleaning system to stop operating until the start of the next cleaning process.

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