CN203235705U - Automatic cleaning device of solar photovoltaic module - Google Patents

Automatic cleaning device of solar photovoltaic module Download PDF

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Publication number
CN203235705U
CN203235705U CN 201320196567 CN201320196567U CN203235705U CN 203235705 U CN203235705 U CN 203235705U CN 201320196567 CN201320196567 CN 201320196567 CN 201320196567 U CN201320196567 U CN 201320196567U CN 203235705 U CN203235705 U CN 203235705U
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CN
China
Prior art keywords
solution
cleaning
pump
controller
reserve tank
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CN 201320196567
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Chinese (zh)
Inventor
包紫光
彭怀午
杨晓峰
达赖
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内蒙古电力勘测设计院
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Priority to CN 201320196567 priority Critical patent/CN203235705U/en
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Publication of CN203235705U publication Critical patent/CN203235705U/en

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Abstract

The utility model provides an automatic cleaning device of a solar photovoltaic module, and belongs to the technical field of solar photovoltaic power stations. The device comprises a cleaning system, a solution filtering system, a solution circulating system and a control system, wherein the cleaning system comprises a flushing tube and a flushing hole opening; the solution filtering system comprises a liquid accumulating groove and filtering cotton; the solution circulating system comprises a liquid storage box, a solution supplying pump, a solution circulating pump and a plurality of connecting pipelines, the liquid storage box is connected with the solution supplying pump which is connected with the flushing tube, one end of the solution circulating pump is connected with the liquid accumulating groove, and the other end of the solution circulating pump is connected with the liquid storage box; the control system comprises a pollutant sensor and a controller, the controller is in wired or wireless connection with the pollutant sensor which is used for sending a signal to the controller when a pollutant measurement value exceeds a threshold value, and the controller is used for controlling the solution supplying pump and the solution circulating pump to start the cleaning process according to the signal of the pollutant sensor. The scheme solves the technical problems that automation degree is low, solution can not be automatically selected, and solution utilizing efficiency is low.

Description

The automatic flushing device of solar photovoltaic assembly
Technical field
The utility model relates to solar photovoltaic power plant, particularly a kind of automatic flushing device of photovoltaic module of solar photovoltaic power plant.
Background technology
Increasingly serious along with the conventional energy resource shortage problem, the improving constantly of environmental protection and awareness of saving energy, the development and utilization regenerative resource has become the energy strategy of sustainable development.The solar energy power generating that utilizes photovoltaic effect directly solar energy to be converted to electric energy is the important component part of new and renewable sources of energy, is considered to new energy technology the most promising on the our times, is most potential power source.
Solar photovoltaic assembly is as the elementary cell of generating, and its conversion efficiency directly has influence on the generated energy of solar photovoltaic power plant.Large solar photovoltaic power plant is based upon in the natural environments such as mountain area, desert or Gobi desert in west area of solar energy resources abundant but ecology fragility, water resources shortage mostly.Be in for a long time in the natural environment, dust or other pollutant will be attached to the surface of photovoltaic module, can reduce it to the conversion efficiency of solar energy, thereby affect the generated energy of photovoltaic plant, the local hot spot effect that produces be can cause when serious, photovoltaic module serviceability and life-span further affected.As seen, very necessary to the regular dedusting of photovoltaic module (dirt).
At present large solar photovoltaic power plant dedusting (dirt) traditional method is mainly contained: one, water car giant jet cleaning; Two, manual wipping.The shortcoming of the first way is that water resource waste is larger, and simultaneously for cold district, cleaning can be subject to the seasonal temperature impact.The shortcoming of the second way is to need to drop into more manpower and materials, and there is certain potential safety hazard in manual work simultaneously.In the prior art to the photovoltaic module dedusting, generally speaking have following several drawback: 1, simple rely on scrape, brush, roller etc. move back and forth in assembly surface and carry out dedusting, the drawback of this class way has: (1) dust removing effects is bad, (2) mechanical transmission component is arranged, be prone to fault, (3) cause easily the photovoltaic module surface tear, (4) cleaning member needs regularly self-cleaning or replacing, increases cost and drops into; 2, rely on merely water (rainwater) to wash away, spray and carry out the assembly surface dedusting, the drawback of this class way is: cleaning medium is confined to water (rainwater), and operation can be subject to the environment temperature restriction; 3, will scrape, brush, roller etc. are combined with water system, the drawback of this class way is: structure is too complicated, invests too highly, generalization is poor.In the above three types of technology, under the condition that is fit to, from dust removing effects and investment, rely on merely the cost performance of water dedusting the highest.
The utility model content
The utility model proposes a kind of automatic flushing device of solar photovoltaic assembly; the problems such as not high such as automaticity, that solution can not be selected automatically, the soln using rate is low have been solved; improved the automaticity of cleaning; and increased science selective power and the recycling ability of cleaning solution, more be conducive to the protection to photovoltaic module and surrounding environment.
The automatic flushing device of the solar photovoltaic assembly that the utility model proposes comprises: purging system comprises cleaning hose and the flushing aperture that is distributed on the cleaning hose; The solution filter system comprises the hydrops groove and is positioned over the interior filter cotton of hydrops groove; Solution recycle system, comprise liquid reserve tank, solution supply pump, solution circulation pump and many connecting lines, liquid reserve tank is connected with the solution supply pump by connecting line, the solution supply pump is connected with the cleaning hose of purging system by connecting line, solution circulation pump one end is connected with the hydrops groove of solution filter system by connecting line, and the other end is connected with liquid reserve tank by connecting line; Control system, comprise the pollutant sensor that is positioned at the photovoltaic module surface and the controller of controlling solution supply pump and solution circulation pump, controller is connected with pollutant sensor by wireless or wired connection, pollutant sensor is used for sending a signal to controller when the pollutant measurement value surpasses threshold value, controller is used for opening cleaning process according to the described solution supply pump of the signal controlling of pollutant sensor and solution circulation pump.
According on the other hand of the present utility model, described cleaning hose is positioned at the upper edge of photovoltaic component frame and is close to frame; And described hydrops groove is positioned at the lower edge of photovoltaic component frame.
According on the other hand of the present utility model, described controller comprises single-chip microcomputer or back yard industry control computer.
According on the other hand of the present utility model, described control system also comprises be used to the environment temperature sensor that obtains ambient temperature.
According on the other hand of the present utility model, described controller also is connected with environment temperature sensor by wired or wireless connection, after being used for receiving the signal of pollutant sensor, the selection result that the temperature signal that sends according to environment temperature sensor and contaminant information obtain the cleaning medium.
According on the other hand of the present utility model, described controller comprises display, and controller sends display so that described selection result is presented in the display.
According on the other hand of the present utility model, described solution recycle system comprises that also one or more cleaning media provide device, described one or more cleaning medium device is provided each comprise cleaning medium reservoir, valve or solution feed pump and connecting pipe, described cleaning medium reservoir connects described valve or solution feed pump by connecting pipe, and described valve or solution feed pump are connected with described liquid reserve tank by connecting pipe.
According on the other hand of the present utility model, the controller of described control system provides described valve or the solution feed pump of device to be connected by wired or wireless connection with described one or more cleaning media, described controller also is used for the described selection result according to the cleaning medium, controlling one or more cleaning media provides the unlatching of the valve of device or solution feed pump or closes, inject liquid reserve tank with the cleaning medium with suitable proportioning, then send a signal to solution supply pump and solution circulation pump to start the cleaning to photovoltaic module.
According on the other hand of the present utility model, described solution recycle system also comprises waste liquid processor, waste liquid processor comprises waste liquid bin, a plurality of valve or pump and pipeline, waste liquid bin one end links to each other with pipeline with liquid reserve tank by valve or pump, and the other end provides device to link to each other with pipeline one by one by one or more valves or pump with described one or more cleaning media.
According on the other hand of the present utility model, the controller of described control system links to each other with a plurality of valves or the pump of waste liquid processor by wired or wireless connection, whether described controller is also consistent for the current cleaning medium that the described selection result of judging the cleaning medium and described liquid reserve tank are stored, if inconsistent, valve or the pump then controlled between waste liquid bin and the liquid reserve tank are opened, current cleaning medium in the liquid reserve tank is injected the waste liquid bin, then controlling one or more cleaning media according to described selection result provides the unlatching of the valve of device or solution feed pump or closes, the cleaning medium of suitable proportioning is injected liquid reserve tank, send a signal at last solution supply pump and solution circulation pump to start the cleaning to photovoltaic module; If consistent, then directly send a signal to solution supply pump and solution circulation pump to start the cleaning to photovoltaic module.
According on the other hand of the present utility model, described waste liquid processor is used for the waste liquid of waste liquid bin is processed, and the solution after will processing injects respectively the cleaning medium reservoir that corresponding cleaning medium provides device.
According on the other hand of the present utility model, described pollutant sensor also comprises timer, described pollutant sensor also is used for again obtaining the detect thickness value when the clocking value of timer reaches predetermined value, if one-tenth-value thickness 1/10, then sends stop signal less than threshold value to controller; And described controller also is used for sending shutdown signal to solution supply pump and solution circulation pump according to stop signal.
Description of drawings
Fig. 1 is the schematic diagram according to the part assembly of solar photovoltaic assembly automatic flushing device of the present utility model;
Fig. 2 is the schematic diagram according to the part operational process of solar photovoltaic assembly automatic flushing device of the present utility model.
The specific embodiment
The automatic flushing device of the solar photovoltaic assembly that the utility model proposes comprises: purging system, solution filter system, solution recycle system and control system.
As shown in Figure 1, purging system comprises the flushing aperture 31 that evenly distributes on cleaning hose 3 and the cleaning hose.Cleaning hose is positioned at the upper edge of photovoltaic module 1 frame, is close to frame, can not cause photovoltaic module 1 and block.
The solution filter system comprises the cheap filter cotton 41 of placing in hydrops groove 4 and the hydrops groove.The hydrops groove is positioned at edge under photovoltaic module 1 frame, can not cause photovoltaic module 1 and block.
Solution recycle system comprises liquid reserve tank 6, solution supply pump 2, solution circulation pump 5 and many connecting lines.As shown in Figure 1, liquid reserve tank 6 is connected with solution supply pump 2 by connecting line, solution supply pump 2 is connected with the cleaning hose 3 of purging system by connecting line, the hydrops groove 4 of solution filter system is connected with solution circulation pump 5 by connecting line, and solution circulation pump 5 is connected with liquid reserve tank 6 by connecting line.
Control system comprises the pollutant sensor (not shown) that is positioned at the photovoltaic module surface and can control the controller (not shown) of solution supply pump 2 and solution circulation pump 5 open and close.Described controller can comprise the control appliances such as single-chip microcomputer, also can comprise back yard industry control computer.Described control system also comprises environment temperature sensor, can obtain the temperature of surrounding environment.
According to the first embodiment of the present utility model, controllers such as single-chip microcomputer or back yard industry control computer can obtain the ambient temperature value that environment temperature sensor sends, make comparisons with the temperature threshold that is stored in the controller, make the selection prompting of (for example being used for cleaning the cleaning fluid of photovoltaic module) of cleaning medium according to comparative result and other factors (such as information such as pollutant kinds), described prompting may be displayed on the display unit of controller.
In another embodiment of the present utility model, described solution recycle system comprises that also one or more cleaning media provide device, and each cleaning medium provides device to comprise cleaning medium reservoir, valve or solution feed pump and connecting pipe.Described cleaning medium reservoir connects described valve or solution feed pump by pipeline, and described valve or solution feed pump are connected with described liquid reserve tank 6 by pipeline.In this embodiment, the controller of described control system can be controlled described valve or solution feed pump.Particularly, described controller can be determined required cleaning medium (can draw by pre-stored temperature threshold, pollutant kind and with the corresponding table of suitable cleaning medium) according to the factors such as major pollutants of the ambient temperature value of temperature sensor senses, surrounding environment, controlling a plurality of cleaning media provides the unlatching of the valve of device or solution feed pump or closes, and obtains the cleaning medium of suitable proportioning.These cleaning media are automatically flowed into or are pumped in the liquid reserve tank 6 of described solution recycle system.For example, stored in the controller this information " temperature〉0 the degree; pollutant: dust; cleaning medium-water ", " temperature<0 degree; pollutant: dust; cleaning medium-LMP solution ", a plurality of cleaning media provide device to comprise that water extraction provides device for device and LMP solution, when the temperature of temperature sensor when being subzero, controller control LMP solution provides the valve of device or pump to open, and the control water extraction is closed for valve or the pump of device, thereby LMP solution is injected liquid reserve tank 6.This concrete case only is example, and conduct is not to restriction of the present utility model.Can increase according to the complexity of surrounding environment or reduce the cleaning medium provides the quantity of device, and adjusts as the case may be parameter preset and the cleaning medium size composition of controller.
In another embodiment of the present utility model, liquid reserve tank 6 also is connected with waste liquid processor by valve or pump, under the control of controller with liquid reserve tank in no waste liquid injection or pump into the waste liquid bin of waste liquid processor.Waste liquid processor also provides device to be connected by a plurality of valves or pump with a plurality of cleaning media, the corresponding cleaning medium of each valve or pump provides device, waste liquid processor to the liquid waste processing in the waste liquid bin after, the liquid after processing is pumped into corresponding cleaning medium and provides in the reservoir of device with recycling.
The power supply of various power equipments in the utility model (such as all pumps, controller etc.) is taken from the electric energy that solar photovoltaic power plant sends on the spot.Simultaneously, each device that the utility model proposes can select dress, so just can select different system configuration for the varying environment situation, with simplied system structure and saving cost.For example for the waste liquid circulatory system (comprising that the cleaning medium provides one of device and waste liquid processor or whole), when pollutant only for dust and when throughout the year environment temperature is higher than zero degrees celsius, can not use the waste liquid circulatory system, because can make water as cleaning fluid throughout the year; And pollutant be the multiple contaminates thing and deposit (such as dust, flue gas, different plant tail gas) and situation (for example often changing cleaning agent according to temperature and pollutant kind needs) that ratio often changes under, can use the waste liquid circulatory system.
The part operational process of solar photovoltaic assembly automatic flushing device of the present utility model as shown in Figure 2.
Select and fill the cleaning medium: kind, characteristics and this ground environmental quality according to the long-term major pollutants in photovoltaic plant location are selected the cleaning medium, inject liquid reserve tank.For example, if the long-term major pollutants in photovoltaic plant location are dust, the annual temperature in this ground is higher than zero degrees celsius simultaneously, and then this ground is fit to select cheap water as the cleaning medium; If the long-term major pollutants in photovoltaic plant location are dust, but this ground winter temperature can be down to below the zero degrees celsius, then this ground is adapted at temperature and is higher than and adopts in the zero degrees celsius period water as the cleaning medium, is lower than zero degrees celsius at temperature and adopts LMP solution as cleansing medium in the period; If photovoltaic plant location major pollutants are factory when discharging tail gas, what then suitable pollutant should be selected in this ground exempts from self-cleaning solution as the cleaning medium.Wherein, the proportioning of the ambient temperature value that controller can send according to temperature sensor, the default information acquisition cleaning media such as pollutant kind, sending a control signal to a plurality of cleaning media that are connected with liquid reserve tank provides valve or the pump of device, control the unlatching of described valve or pump or close, corresponding cleaning medium is injected liquid reserve tank automatically.
The pollutant sensor that is positioned at the photovoltaic module surface is set the contamination thickness threshold value, when measured value surpasses threshold value, pollutant sensor passes to controller with signal, and controller will send actuating signal and open solution supply pump and solution circulation pump, thereby starts cleaning device.
The solution supply pump is sent into the cleaning medium in the cleaning hose by connecting line, cleaning solution is under pressure through the ejection of flushing aperture, wash away uniformly from top to bottom along the photovoltaic module surface, the cleaning solution that carries pollutant after washing away flows into the hydrops groove that is positioned at edge under the photovoltaic component frame, the filtering-depositing of process filter cotton in the hydrops groove, continuation is downstream to the bottom of hydrops groove, in the effect of the gradient downstream to the solution circulation pipeline, cleaning solution after filtering is pumped in the liquid reserve tank finally by solution circulation, forms circulation.
Through after the cleaning of setting-up time, pollutant sensor is measured the photovoltaic module surface again, measured value and threshold value compare, until measured value is during less than threshold value, pollutant sensor passes to controller with signal, controller sends actuating signal and cuts out solution supply pump and solution circulation pump, finishes cleaning.
Can judge cleaning medium in the liquid reserve tank, before filling the cleaning medium, (for example controller can be stored the proportioning situation of cleaning last time medium to the cleaning medium whether original liquid in the controller judgement liquid reserve tank is selected, make comparisons with current judgement), if so, the control cleaning medium that then no longer transmits control signal injects; If not, control so valve or the pump of the waste liquid processor that links to each other with liquid reserve tank, make its unlatching, original liquid of liquid reserve tank is injected the waste liquid bin of waste liquid processor, empty liquid reserve tank, and according to the proportioning of selected cleaning medium, send a control signal to valve or pump that a plurality of cleaning media that are connected with liquid reserve tank provide device, control the unlatching of described valve or pump or close, corresponding cleaning medium is injected liquid reserve tank automatically.After the liquid waste processing of waste liquid processor to the waste liquid bin, the liquid after processing is injected respectively the corresponding cleaning medium that is connected with waste liquid processor provides device, with recycling cleaning medium.
The photovoltaic module automatic flushing device that the utility model proposes has the following advantages: it is increasingly automated that photovoltaic module cleans, cleaning fluid filling and circulation increasingly automated.Concrete, can select liquid cleaning medium according to characteristics and the environmental quality of pollutant; Pollutant sensor can pass to controller with the contamination thickness signal, is used for controlling the start and stop of solution supply pump and solution circulation pump; Cleaning hose is positioned at the upper edge of photovoltaic component frame, is close to frame, can not cause assembly and block; Equally distributed flushing aperture can evenly be washed away the photovoltaic module surface from top to bottom under solution supply pump pressure-acting, and developing result is good; The hydrops groove is positioned at edge under the photovoltaic component frame, can not cause assembly and block, and the hydrops groove is designed to certain slope simultaneously, is conducive to the cleaning medium and reclaims; But cheap filter cotton uses the regular period by Reusability after cleaning, and it is low to filter cost; The solution supply pump is the multifunction pump that is applicable to different cleaning media from solution circulation pump; Realize recycling of cleaning medium, had certain Significance for Environment; Adopt the liquid reserve tank of sealing, the occupation of land scope is little, avoids simultaneously the cleaning medium to be polluted; The power supply of various power equipments is taken from the electric energy that photovoltaic plant sends on the spot.
Should note; the specific embodiment that the utility model proposes and application be the purpose for illustrating only; as the restriction to the utility model protection domain, those skilled in the art can not make amendment to the specific embodiment of the present utility model, to satisfy actual needs.Can be alternative with the jet pipe of other type or shape, shower nozzle etc. such as the flushing aperture, filter can substitute with other filter plant, and liquid reserve tank can substitute with other device for storing liquid, the concrete control mode of controller can be adjusted according to surrounding environment and temperature etc.

Claims (12)

1. the automatic flushing device of solar photovoltaic assembly is characterized in that, comprising:
Purging system comprises cleaning hose and the flushing aperture that is distributed on the cleaning hose;
The solution filter system comprises the hydrops groove and is positioned over the interior filter cotton of hydrops groove;
Solution recycle system, comprise liquid reserve tank, solution supply pump, solution circulation pump and many connecting lines, liquid reserve tank is connected with the solution supply pump by connecting line, the solution supply pump is connected with the cleaning hose of purging system by connecting line, solution circulation pump one end is connected with the hydrops groove of solution filter system by connecting line, and the other end is connected with liquid reserve tank by connecting line;
Control system, comprise the pollutant sensor that is positioned at the photovoltaic module surface and the controller of controlling solution supply pump and solution circulation pump, controller is connected with pollutant sensor by wireless or wired connection, pollutant sensor is used for sending a signal to controller when the pollutant measurement value surpasses threshold value, controller is used for opening cleaning process according to the described solution supply pump of the signal controlling of pollutant sensor and solution circulation pump.
2. automatic flushing device according to claim 1 is characterized in that:
Described cleaning hose is positioned at the upper edge of photovoltaic component frame and is close to frame; And
Described hydrops groove is positioned at the lower edge of photovoltaic component frame.
3. automatic flushing device according to claim 1 is characterized in that:
Described controller comprises single-chip microcomputer or back yard industry control computer.
4. automatic flushing device according to claim 1 is characterized in that:
Described control system also comprises be used to the environment temperature sensor that obtains ambient temperature.
5. automatic flushing device according to claim 4 is characterized in that:
Described controller also is connected with environment temperature sensor by wired or wireless connection, after being used for receiving the signal of pollutant sensor, and the selection result that the temperature signal that sends according to environment temperature sensor and contaminant information obtain the cleaning medium.
6. automatic flushing device according to claim 5 is characterized in that:
Described controller comprises display, and controller sends display so that described selection result is presented in the display.
7. automatic flushing device according to claim 5 is characterized in that:
Described solution recycle system comprises that also one or more cleaning media provide device, described one or more cleaning medium device is provided each comprise cleaning medium reservoir, valve or solution feed pump and connecting pipe, described cleaning medium reservoir connects described valve or solution feed pump by connecting pipe, and described valve or solution feed pump are connected with described liquid reserve tank by connecting pipe.
8. automatic flushing device according to claim 7 is characterized in that:
The controller of described control system provides described valve or the solution feed pump of device to be connected by wired or wireless connection with described one or more cleaning media, described controller also is used for the described selection result according to the cleaning medium, controlling one or more cleaning media provides the unlatching of the valve of device or solution feed pump or closes, inject liquid reserve tank with the cleaning medium with suitable proportioning, then send a signal to solution supply pump and solution circulation pump to start the cleaning to photovoltaic module.
9. automatic flushing device according to claim 7 is characterized in that:
Described solution recycle system also comprises waste liquid processor, waste liquid processor comprises waste liquid bin, a plurality of valve or pump and pipeline, waste liquid bin one end links to each other with pipeline with liquid reserve tank by valve or pump, and the other end provides device to link to each other with pipeline one by one by one or more valves or pump with described one or more cleaning media.
10. automatic flushing device according to claim 9 is characterized in that:
The controller of described control system links to each other with a plurality of valves or the pump of waste liquid processor by wired or wireless connection, whether described controller is also consistent for the current cleaning medium that the described selection result of judging the cleaning medium and described liquid reserve tank are stored, if inconsistent, valve or the pump then controlled between waste liquid bin and the liquid reserve tank are opened, current cleaning medium in the liquid reserve tank is injected the waste liquid bin, then controlling one or more cleaning media according to described selection result provides the unlatching of the valve of device or solution feed pump or closes, the cleaning medium of suitable proportioning is injected liquid reserve tank, send a signal at last solution supply pump and solution circulation pump to start the cleaning to photovoltaic module; If consistent, then directly send a signal to solution supply pump and solution circulation pump to start the cleaning to photovoltaic module.
11. automatic flushing device according to claim 9 is characterized in that:
Described waste liquid processor is used for the waste liquid of waste liquid bin is processed, and the solution after will processing injects respectively the cleaning medium reservoir that corresponding cleaning medium provides device.
12. the described automatic flushing device of arbitrary claim according to claim 1-11 is characterized in that:
Described pollutant sensor also comprises timer, and described pollutant sensor also is used for again obtaining the detect thickness value when the clocking value of timer reaches predetermined value, if one-tenth-value thickness 1/10, then sends stop signal less than threshold value to controller; And described controller also is used for sending shutdown signal to solution supply pump and solution circulation pump according to stop signal.
CN 201320196567 2013-04-18 2013-04-18 Automatic cleaning device of solar photovoltaic module CN203235705U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223404A (en) * 2013-04-18 2013-07-31 内蒙古电力勘测设计院 Automatic washing device and method for solar photovoltaic component
CN103846244A (en) * 2014-03-12 2014-06-11 长春工业大学 Autonomous solar panel multifunctional integral cleaning system
CN105577101A (en) * 2015-10-16 2016-05-11 马根昌 Water membrane dedusting photovoltaic panel
CN109530359A (en) * 2018-11-21 2019-03-29 中铝视拓智能科技有限公司 It is a kind of to clear up the robot to scab and system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223404A (en) * 2013-04-18 2013-07-31 内蒙古电力勘测设计院 Automatic washing device and method for solar photovoltaic component
CN103223404B (en) * 2013-04-18 2015-05-20 内蒙古电力勘测设计院有限责任公司 Automatic washing device and method for solar photovoltaic component
CN103846244A (en) * 2014-03-12 2014-06-11 长春工业大学 Autonomous solar panel multifunctional integral cleaning system
CN103846244B (en) * 2014-03-12 2016-06-08 长春工业大学 Autonomous type solar panel multifunctional cleaning system
CN105577101A (en) * 2015-10-16 2016-05-11 马根昌 Water membrane dedusting photovoltaic panel
CN109530359A (en) * 2018-11-21 2019-03-29 中铝视拓智能科技有限公司 It is a kind of to clear up the robot to scab and system

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