CN105797986A - Cleaning device for solar cell panels - Google Patents

Abstract

The invention discloses a solar battery panel cleaning device, which comprises a frame driven by external force or suspended on a photovoltaic array board by a self-contained traveling mechanism to move forward or backward, and also includes a chain driving device and a cleaning device; a chain The driving device includes a reduction motor, a driving wheel, a sprocket, a sprocket shaft for fixing the sprocket, a chain set on the sprocket, and an electromagnetic clutch. The forward or backward of the solar panel cleaning device is controlled by whether the electromagnetic clutch is energized or not. The deceleration motor drives the drive wheel to drive the sprocket to rotate, thereby driving the chain to move; the cleaning device includes a comb-shaped scraper installed in parallel on the frame, a brush string composed of chains and brush strips, and a pinhole pulse water spray pipe. , Dust and dust scraper strings composed of chains and dust scrapers, pinhole pulse water spray pipes, brush strings composed of chains and brush strips, and comb-shaped scrapers. The invention can be operated by one person, and its cleaning efficiency is 20-40 times that of manual cleaning.

Description

A solar panel cleaning device

technical field

The invention relates to solar panel cleaning equipment, in particular to a solar panel cleaning device.

Background technique

At present, many research and development units at home and abroad are trying to use mechanical equipment to clean and maintain solar panel arrays (hereinafter referred to as photovoltaic panels or photovoltaic arrays). Rinse with water while brushing or just rely on the wool to clean without water. But to this day, people still generally adopt the original method of manually dipping in water and scrubbing in actual work. The reason is that the cleaning equipment with a high degree of automation is expensive and the effect is not ideal enough. The manual cleaning method is inefficient, labor-intensive, and expensive. For roof photovoltaic panels, it is impossible to use manual cleaning methods. The use of cleaning robots is an inevitable trend. A solar panel cleaning robot in developed countries in foreign countries weighs only 50Kg. It automatically walks on the photovoltaic array and stops automatically when it reaches the end. , and expensive.

Contents of the invention

Aiming at the above-mentioned problems existing in the solar panel cleaning equipment in the prior art, the present invention provides a solar panel cleaning device, which reduces the cost of photovoltaic power generation and dust removal, improves water utilization, and at the same time, the device is easy to clean on the roof, and the cost is relatively low. The cost of clean operation does not exceed one-third of the increased power generation benefit due to cleaning, and the economic benefit is obvious.

Technical scheme of the present invention is as follows:

A solar cell panel cleaning device, the solar cell includes several photovoltaic panels, and the device includes a frame that is driven by external force or suspended on the photovoltaic array panel by its own walking mechanism and moves forward or backward. The frame includes a long rod of the frame and a short rod of the frame, and the solar panel cleaning device also includes a chain driving device and a cleaning device; the chain driving device includes a reduction motor, a driving wheel, a sprocket wheel, The sprocket shaft, the chain set on the sprocket and the electromagnetic clutch, the forward or backward of the solar panel cleaning device is controlled by whether the electromagnetic clutch is energized or not, and the geared motor makes the driving wheel drive the sprocket to rotate, thereby driving the chain to move; The cleaning device includes a comb-shaped scraper installed on the frame in sequence, a brush string composed of a chain and a brush strip, a pinhole pulse water spray pipe, and a dust scraper composed of a chain and a dust scraper. Strip strings, pinhole pulse water spray pipes, brush strings composed of chains and brush strips, and comb-shaped scrapers.

As a further improvement of the present invention, the comb-shaped scraper is equal in length to the slope of the photovoltaic panel, and is made of a material that does not damage the glass surface of the photovoltaic panel. The comb-shaped scraper is installed on the long rod of the frame with a pressure plate and a limit bolt , the two sides of the comb-shaped scraper extending between the pressure plate and the long rod are equipped with ball linings, the scraping mouth of the comb-like scraper falls on the surface of the photovoltaic panel, and the two ends of the scraping mouth are respectively equipped with pulleys or made into arc or When the comb-shaped scraper moves horizontally on the solar panel, it can slide upwards with a limit of less than or equal to 7mm when it meets the frame of the photovoltaic panel. If it exceeds this limit, it will automatically fall down.

As a further improvement of the present invention, there are two sprocket shafts whose spacing exceeds the length of the slope of the solar panel array and are parallel to each other, and each sprocket shaft is equipped with three oppositely arranged sprockets, thereby forming three pairs of sprocket wheels , three pairs of sprocket wheels respectively tension three groups of closed chains, install a number of soft and vertically deformable dust scrapers parallel to each other on the chains in the middle to form a string of dust scrapers, and install each other on the chains on both sides. Some parallel hairbrush bars become the hairbrush bar strings, and the brush bar strings at the back do not work when the solar panel cleaning device advances, and the front hairbrush bar strings do not work when retreating.

As a further improvement of the present invention, the length of the pinhole pulse water spray pipe is equal to the slant length of the solar panel array, and it is provided with a row of pinholes arranged in a straight line on one side, closed at one end, and is resistant to corrosion, aging and corrosion. The pipe made of rust material is installed on the long pole of the frame, and pulse sprays the surface of the solar panel to wet the surface of the panel. When moving forward, the pinhole water spray pipe in the front will emit water, and vice versa when moving backward. The water source is connected to the outside of the frame by a high-pressure water pipe. The water supply tank is pulse-fed by a plunger pump.

As a further improvement of the present invention, the brush strips of the brush strip string are formed by planting animal hair or nylon filaments or DuPont filaments on the substrate strips.

As a further improvement of the present invention, when the distance between the dust scraping strips and the brush strips is equal and the length of the dust scraping strips is equal to the length of the brush strips, the lateral movement speed of the frame satisfies the relation S1≯ S2×(M/N), where, S2 is the longitudinal moving speed of the dust scraping bar and the brush bar, M is the distance between the dust scraping bars, and N is the length of the dust scraping bar.

The beneficial effects brought by the present invention are:

Since the dust repelling ring continuously scrapes the dust from the photovoltaic panel to the ground from top to bottom on the slope of the photovoltaic array when the surface of the photovoltaic panel is wet, it does not need to be flushed with large water. After the test, the photovoltaic panel is cleaned with pinhole micro water every hour It only needs 20 liters and can be cleaned in two directions. It has high cleaning efficiency and light weight. It not only solves the problem of cleaning flat roof photovoltaic panels, but the cleaning efficiency is 10-15 times that of manual work. It can also easily solve large-scale cleaning with a simple vehicle tracking The cleaning of the photovoltaic power station is operated by one person. The cleaning efficiency is 20-40 times that of manual cleaning, and the work efficiency reaches 1500-2000 square meters per hour, which can greatly save the cleaning cost and maintenance cost of solar panels.

Description of drawings

Fig. 1 is a side view of a part of the comb scraper on the photovoltaic array according to an embodiment of the present invention;

Fig. 2 is a top view of an embodiment of the present invention;

Fig. 3 is a schematic diagram of a comb-shaped scraper passing through a frame of a photovoltaic panel according to an embodiment of the present invention.

detailed description

All features or steps in all methods or processes disclosed in this specification can be combined in any way except for mutually exclusive features and processes.

The method and the best embodiment will be further described in detail according to the accompanying drawings.

For ease of description, terms such as "upper," "lower," "left," and "right" are used herein to refer to the relationship of one component or feature to another as shown in the drawing figures, except that In addition to those shown in , the terms "upper", "lower", "front", "rear", "longitudinal" and "transverse" refer to a part in a solar panel array or called a photovoltaic array. s position.

The structure of the solar cell panel cleaning device of the present invention is shown in Figure 1, comprises a frame, and frame comprises frame long rod 1001 and frame short rod 1002, and frame is driven by external force or self-contained walking mechanism, and frame relies on The lower part moves forward or backward corresponding to the row of rollers 7002 suspended on the photovoltaic array and the row of hanging wheels 7003 on the side of the frame of the photovoltaic panel 8 . The structure of the frame 8 is shown in Figure 2, and the position of the drawing in Figure 2 is installed in order from top to bottom with the photovoltaic panel 8 as the object: a comb-shaped scraper 3, a brush composed of a chain 2004 and a brush bar 4 Strip string, pinhole pulse water spray pipe 6, dust scraper strip string composed of chain 2004 and dust scraper strip 5, pinhole pulse water spray pipe 6, chain 2004 and brush strip string composed of brush strip 4, Comb scraper 3. The comb-shaped scraper 3 pries the bird droppings in the front, the rear brush strips brush the dust to the ground, the rear pinhole pulse water spray pipe 6 pairs of photovoltaic panels 8 spray air to drive the dust below it, and the rear dust scraping strips series scraping belt Dust and water traces.

The length of the comb-shaped scraper 3 is equal to the length of the inclined plane of the solar panel array, and the bird droppings are scraped when the front moves forward. In Fig. 2, the comb-shaped scraper 3 is made of a material that does not damage the glass. The scraper is installed on the frame long rod 1001 with a pressing plate 3001 and a limit bolt 3003, and the two sides of the comb-shaped scraper 3 inserted between the pressing plate 3001 and the frame long rod 1001 are equipped with ball linings 2002, and the comb-shaped scraper The scraping opening of 3 falls on the surface of photovoltaic panel 8, and pulleys or lifting rods 3004 made into arcs or slopes are respectively installed at both ends. When the comb-shaped scraper 3 moves laterally on the solar cell panel, it can slide upwards with a limit of ≯7mm when it meets the frame of the photovoltaic panel 8, and it will automatically fall after passing the frame.

The structure of the dust scraping bar string and the brush bar string is as follows: the frame is provided with two sprocket shafts 2006 whose distance exceeds the length of the inclined plane of the solar panel array and is parallel to each other, and three sprocket wheels 2003 are respectively installed on the sprocket shaft 2006. Three groups of closed chains 2004 are respectively tensioned on the three pairs of sprockets 2003 . On the closed chain 2004 in the middle, parallel to each other and its spacing is set as N soft and vertically deformable some dust scraping strips 5 whose length is set as M to become a dust scraping strip string like a vehicle crawler. On the two closed chains 2004 on both sides, install the brush strips 4 that are parallel to each other and set the length of N as some lengths of M to become the brush strip strings. In Fig. 2, a drive wheel 2002 driven by a reduction motor 2001 is provided next to the sprocket wheel 2003 in the middle of the sprocket shaft 2006 on the left side, and a dust cleaning brush 2008 can be set beside the drive wheel. The following of the left side sprocket shaft 2006 installs the lower sprocket 2003 through the electromagnetic clutch 2005 of the bottom, and the upper sprocket 2003 is installed through the input wheel (ie driving wheel 2002), electromagnetic clutch 2005 above. Two electromagnetic clutches 2005 are fixed on the long rod 1001 of the frame. The forward or backward of the device is controlled by the energization of the electromagnetic clutch 2005. When advancing, the brush strings at the back do not work, and when retreating, the brush strings at the front do not work. Bearing blocks 2007 on both sides of the sprocket wheel 2003 in the middle of the right sprocket shaft 2006 are respectively fixed on the two frame poles 1001 in the middle. The lower scraping strips of the scraping strip ring of the brush strip 4 and the dust scraping strip 5 scrape the surface of the solar panel continuously at a certain speed while scraping dust continuously from top to bottom. . The brush strip string and the dust scraping strip string also continuously move from top to bottom on the slope of the solar panel array to scrape dust to the ground.

The length of the pinhole pulse water spray pipe 6 among Fig. 1 is equal to the oblique length of the solar panel array, and is a pipe made of an anti-corrosion, anti-aging and anti-rust material that is closed at one end, and it processes pinhole rows arranged in a straight line on one side, and is installed in On the long pole 1001 of the rack. The pinhole pulse water spray pipe 6 pulse sprays the surface of the solar panel and wets the surface of the battery panel. When advancing, the pinhole water spray pipe in the front leaves water, and vice versa when retreating. The pinhole pulse water spray pipe 6 solves the process of wetting the surface of the photovoltaic panel 8 with very little water and then scraping it clean. The water source is connected to the water supply tank outside the frame by a high-pressure water pipe and pulsed by a plunger pump.

The brush strip 4 of the brush strip string is formed by planting animal hair or nylon silk or DuPont silk on the substrate strip.

In order not to leave a dead angle, the lateral moving speed S1≯S2×(M/N), where S2 is the longitudinal moving speed of the scraping bar and the brush bar.

In summary, the solar panel cleaning device of the present invention includes a frame that is suspended on the photovoltaic array board by external force or self-contained walking mechanism and moves forward or backward. Installed in order from left to right: comb scraper, brush string, pinhole pulse spray tube, dust scraper string, pinhole pulse spray tube, brush string, comb scraper, comb scraper Pry the bird droppings at the front, brush the dust to the ground with the rear brush strips, spray the wet photovoltaic panel at the rear, and scrape off the dusty water traces with the rear dust scraper strips, the rear pinhole pulse water spray pipe and the brush strips do not work when moving forward , the front pinhole pulse water spray pipe and the brush strip string do not work when backing. The invention can be operated by one person, and the cleaning efficiency is 20-40 times that of manual cleaning.

The method of the present invention is not limited to the aforementioned specific embodiments, and the method of the present invention extends to any new features or any new combination disclosed in this specification.

Claims (6)

1. a solaode board cleaning device, described solar panel includes some photovoltaic panel (8), and it is special Levy and be: described device include one driven by external force or by carry walking mechanism hang on photovoltaic array plate forward or The frame being moved rearwards by, described frame includes frame stock (1001) and frame quarter butt (1002), described too Sun can also include chain drive, cleaning device by cell panel cleaning device；Described chain drive includes subtracting Speed motor (2001), driving wheel (2002), sprocket wheel (2003), sprocket wheel for fixed chain wheels (2003) Axle (2006), the chain (2004) being sheathed on sprocket wheel (2003) and electromagnetic clutch (2005), too Whether advance or the retrogressing of sun energy cell panel cleaning device are energized by electromagnetic clutch (2005) and control, and slow down electricity Machine (2001) makes driving wheel (2002) band movable sprocket (2003) rotate, thus drives chain (2004) to move Dynamic；Described cleaning device includes the pectination scraper plate (3) being parallelly mounted to successively in described frame, by chain (2004) The hairbrush bar string that forms with hairbrush bar (4), pin hole pulse sparge pipe (6), by chain (2004) and dirt ash Dirt ash scraping article string, pin hole pulse sparge pipe (6), chain (2004) and the hairbrush bar (4) that scraping article (5) forms The hairbrush bar string of composition, pectination scraper plate (3).

A kind of solaode board cleaning device the most according to claim 1, is characterized in that: described pectination is scraped Plate (3) is equal with the chamfer length of photovoltaic panel (8), is made up of the material of the glass surface not hindering photovoltaic panel (8), Pectination scraper plate (3) pressing plate (3001) and caging bolt (3003) are arranged on frame stock (1001), Pectination scraper plate (3) two sides stretched between pressing plate (3001) and stock (1001) serves as a contrast (3002) equipped with ball, The mouth of scraping of pectination scraper plate (3) falls within photovoltaic panel (8) surface, described in scrape the two ends of mouth and be respectively provided with pulley or system Camber or inclined-plane raise bar (3004), when pectination scraper plate (3) transverse shifting on solar panel The frame meeting photovoltaic panel (8) can make the conditional upwards sliding less than or equal to 7mm, and exceeding this restriction will Automatically fall off.

A kind of solaode board cleaning device the most according to claim 1, is characterized in that: described sprocket shaft (2006) being provided with two, its spacing exceeds the chamfer length of solar panel array and is parallel to each other, often Equipped with three sprocket wheels being oppositely arranged (2003) on individual sprocket shaft (2006), thus formed three to sprocket wheel pair, Three pairs of sprocket wheels are to the upper chain (2004) that tensioning three groups closes respectively, in the upper installation of middle chain (2004) The softness being parallel to each other can some dirt ash scraping article (5) of vertical deformation and become dirt ash scraping article string, the chain on both sides It is respectively mounted the some hairbrush bars (4) being parallel to each other on bar (2004) and becomes hairbrush bar string, solar-electricity When pond board cleaning device advances, hairbrush bar string below does not works, during retrogressing before hairbrush bar string do not work.

A kind of solaode board cleaning device the most according to claim 1, is characterized in that: described pin hole arteries and veins Rush the length plagioclase equal to solar panel array of sparge pipe (6), be that side is provided with linear array Pin hole row, one end is closed, the pipe that made by anti-rotten aging resistance rust-proofing material, be installed on frame stock (1001), the moist cell panel surface to solar panel surface pulse nebulization technique, during advance, pin above Hole sparge pipe (6) water outlet, on the contrary during retrogressing, water source is passed through plunger by the outer supply tank of high-pressure water pipe connection frame Pump pulse supplies.

A kind of solaode board cleaning device the most according to claim 1, is characterized in that: described hairbrush bar The hairbrush bar (4) of string is to be planted formed in substrate strip by animal wool or nylon yarn or Du Pont's silk.

A kind of solaode board cleaning device the most according to claim 1, is characterized in that: when dirt ash scraping article (5) spacing and the spacing of hairbrush bar (4) is equal and the length of the grey scraping article of dirt (5) and hairbrush bar (4) When length is equal, the transverse shifting speed of described frame meets relational expression S1 ≯ S2 × (M/N), and in formula, S2 is Dirt ash scraping article and hairbrush bar lengthwise travel rate, M is the distance between dirt ash scraping article (5), and N is that dirt ash is scraped The length of bar (5).