CN106623274A - Laser cleaning method for photovoltaic solar cell panel - Google Patents
Laser cleaning method for photovoltaic solar cell panel Download PDFInfo
- Publication number
- CN106623274A CN106623274A CN201611112494.8A CN201611112494A CN106623274A CN 106623274 A CN106623274 A CN 106623274A CN 201611112494 A CN201611112494 A CN 201611112494A CN 106623274 A CN106623274 A CN 106623274A
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- CN
- China
- Prior art keywords
- solar cell
- photovoltaic solar
- laser
- pulse laser
- cleaning method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000004140 cleaning Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 10
- 239000000356 contaminant Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 8
- 241000931526 Acer campestre Species 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000011109 contamination Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 241000894007 species Species 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005406 washing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a laser cleaning method for a photovoltaic solar cell panel. The method comprises the following steps: step 1, selecting parameters of pulse laser according to the thickness and surface state of surface pollutants of the photovoltaic solar cell panel; step 2, performing pulse laser scanning on the surface pollutants of the photovoltaic solar cell panel through the pulse laser based on the abovementioned parameters, wherein the surface pollutants can relatively displace to overcome the adhering force through the expansion coefficients which are different from those of the photovoltaic solar cell panel, so that the surface pollutants can be separated from the photovoltaic solar cell panel to form separated matters; step 3, moving the pulse laser through a transmission mechanism to scan all areas, to be cleaned, of the photovoltaic solar cell panel; and step 4, collecting the separated matters. The method is low in cleaning cost, high in working efficiency, and suitable for long-term stable use.
Description
Technical field
The present invention relates to photovoltaic solar cell plate surface cleaning technique field, more particularly to a kind of photovoltaic solar electricity
The laser cleaning method of pond plate.
Background technology
With petering out for the traditional fossil energies such as oil, coal, environmental pollution is increasingly serious, and solar energy industry is obtained
Unprecedented opportunity to develop.Solar-energy photo-voltaic cell is that directly luminous energy is changed into by photoelectric effect or Photochemical effects
The device of electric energy, in order to obtain higher solar radiation quantity, build that latitude is relatively low, physical features is higher, rarefaction of air in more photovoltaic plant
Area.Although the amount of radiation of these regional sunlight can be higher than other areas, these regional dust pollutions are also more serious, face
The spot of plate surface contamination can have a strong impact on generating efficiency, equipment life be reduced, it could even be possible to fire can be caused.Therefore battery
The necessary thoroughly cleaning of plate is clean, if leaving dead angle, may cause serious consequences such as " hot spot effects ".
Shown according to numerous studies, the laying dust on solar panel can reduce by 7% to 40% battery efficiency.One
300 megawatts of solar power plant may spend and surpass 5,000,000 dollars to be cleaned, while in terms of production of energy, because of dust
The loss of covering is at least up to 3,600,000 dollars.Up to the present, not occurring being capable of thorough solution to this problem.
The major way of current solar panel cleaning is divided into artificial washing and industrial washing device is rinsed, but these sides
Bring many new problems while method washing and cleaning operation again.
The inefficiency of Traditional Man washing, it is ensured that all cell panel moment keep cleaning, needs a large amount of personnel clear
Clean operation.Additionally due to solar photovoltaic cell panel spreading area is big, staff's body weight cannot be born in cleaning process, this
Difficulty is brought to the manual cleaning of cell panel.
And at present the cost of industrial washing device is very high.According to standard is commonly designed, per the cleaning of 10MW power stations allied industry
System at least needs the millions of units of one-time investment.Meanwhile, large area short circuit caused by giant can cause decrease of power generation.
Additionally, current either manual cleaning or industry cleaning link are all with water as cleansing medium, this is scarce for arid is located in
For the photovoltaic plant in water area, the cost of cleaning is increased again.Also, the ice sheet that winter washing cell panel is produced can be serious weak
Change optical effect, which increases the cleaning difficulty of the solar photovoltaic power plant in the north.
In sum, although the cleaning method of existing photovoltaic solar cell plate can realize the purpose cleaned, all
There are problems that poor cleaning effect, cleaning high cost and cleaning difficulty in various degree, significantly limit photovoltaic solar electricity
The application of pond plate.
Therefore, the big shortcoming of poor photovoltaic solar cell plate cleaning effect, cleaning high cost and cleaning difficulty how is solved,
It is have technical problem to be solved.
The content of the invention
The invention aims to provide a kind of laser cleaning method of photovoltaic solar cell plate, the present invention can be efficient
The cleaning photovoltaic solar cell plate of rate, low cost.
To achieve these goals, the invention provides a kind of laser cleaning method of photovoltaic solar cell plate, including
Following steps：
Step one, according to the surface contamination species and thickness of the photovoltaic solar cell plate, strobe pulse laser
Parameter；
Step 2, arteries and veins is carried out using the pulse laser of the parameter to the surface contaminant of the photovoltaic solar cell plate
Impulse optical scanning, the surface contaminant can overcome viscous because producing from the different coefficients of expansion of the photovoltaic solar cell plate
The relative displacement of attached power, makes the surface contaminant peel off and be formed overburden from the photovoltaic solar cell plate；
Step 3, moves the pulse laser and scans needing clearly for the photovoltaic solar cell plate using transmission mechanism
The region washed；
Step 4, the overburden is collected.
Preferably, the pulse laser adopts linear light spot.
Preferably, in the parameter, the pulse width of the pulse laser is 10ns～100ns, and optical maser wavelength is 532nm
～1064nm.
Preferably, in the parameter, the mean power of the pulse laser is 60W～300W, pulse frequency be 1kHz～
100kHz。
Preferably, in the parameter, the mean power of the pulse laser is 100W, and the optical maser wavelength is 1064nm,
The pulse frequency is 10kHz, and the pulse width of the pulse laser is 30ns.
Preferably, the step of the employing transmission mechanism movement includes：Using the one kind in mechanical arm, machine carriage or
It is various to move.
Preferably, in the step 4, by dust exhaust apparatus the overburden is collected and is filtered.
Preferably, the pulse laser of the parameter is transmitted to light-beam forming unit by optical fiber or light pipe by laser instrument
In, a spot shaping is obtained into the linear light spot by the apparatus for shaping, the linear light spot through condenser lens and protective glass, most
The region to be cleaned is radiated at eventually.
Preferably, the light-beam forming unit is scanning galvanometer or polygonal rotating mirror.
Laser cleaning technique is innovatively applied to the surface clean of photovoltaic solar cell plate by the present invention, can be effectively
Solve the problems, such as the pollutant cleaning of photovoltaic solar cell plate surface.Rush compared to traditional artificial washing and industrial equipment
Wash, laser cleaning has the advantage that：
1) laser cleaning does not need water as cleansing medium, and photovoltaic plant is also significantly lower in while saving water resource
Cleaning cost, it is to avoid the secondary pollution of medium in cleaning process.Also prevent to wash what cell panel brought under low temperature environment simultaneously
The problems such as surface freezes.
2) laser cleaning high working efficiency, operation cost is low.The electricity charge and General Maintenance expense are only needed to, other will not be introduced
Material Cost, equipment can use steadily in the long term.
3) laser cleaning is contactless cleaning, and cleaning process does not contact photovoltaic solar cell plate, will not be to photovoltaic too
Positive energy cell panel surface band carrys out any damage.
4) laser cleaning has very high adaptability, is carried by transmission mechanism, for photovoltaic solar cell plate surface
It is easy to clean to realize automation mechanized operation.
According to the detailed description below in conjunction with accompanying drawing to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, the advantages and features of the present invention.
Description of the drawings
Describe some specific embodiments of the present invention in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the structural representation that the mechanical arm movement pulse laser of the embodiment of the present invention cleans photovoltaic solar cell plate
Figure；
Fig. 2 is the structural representation that the machine carriage movement pulse laser of the embodiment of the present invention cleans photovoltaic solar cell plate
Figure；
The step of Fig. 3 is the inventive method embodiment flow chart.
101, mechanical arm in figure；102nd, pulse laser；103rd, surface to be cleaned；201 machine carriages.
Specific embodiment
The step of Fig. 3 is the inventive method embodiment flow chart, as shown in figure 3, the embodiment of the present invention provides a kind of photovoltaic
The laser cleaning method of solar panel, comprises the following steps：
Step 310, according to the surface contamination species and thickness of the photovoltaic solar cell plate, strobe pulse laser
Parameter；
Step 320, is carried out using the pulse laser of the parameter to the surface contaminant of the photovoltaic solar cell plate
Pulse laser is scanned, and the surface contaminant from the different coefficients of expansion of the photovoltaic solar cell plate because producing and can overcome
The relative displacement of adhesion, makes the surface contaminant peel off and be formed overburden from the photovoltaic solar cell plate；
Step 330, moves the pulse laser and scans being needed for the photovoltaic solar cell plate using transmission mechanism
The region of cleaning；
Step 340, the overburden is collected.
It can be seen that, in the inventive method embodiment, according to the thickness and surface state of the surface impurity of solar panel, choosing
The parameter of pulse laser is selected, is carried out after laser scanning using the parameter, because of surface contaminant and the photovoltaic solar cell plate
Nonsynchronous expansion is produced with the different coefficients of expansion, so as to produce the relative displacement that can overcome adhesion so that surface is dirty
Dye thing is peeled off.The inventive method embodiment can rapidly be scanned with large area, efficiency high, and need not use water, reduced and cleaned into
This, because solar panel is much applied in northwest drought area, anhydrous cleaning has significant cost.
In some illustrative embodiments, the pulse laser 102 adopts linear light spot.
In some illustrative embodiments, in the parameter, the pulse width of the pulse laser 102 be 10ns～
100ns, optical maser wavelength is 532nm～1064nm.
In some illustrative embodiments, in the parameter, the mean power of the pulse laser 102 is 60W～300W,
Pulse frequency is 1kHz～100kHz.
In some illustrative embodiments, in the parameter, it is preferable that the mean power of the pulse laser 102 is
100W, the optical maser wavelength is 1064nm, and the pulse frequency is 10kHz, and the pulse width of the pulse laser is 30ns.
Wherein, before laser cleaning photovoltaic solar cell plate surface attachment sandy environment, according to sand and dust accumulation not
Together, the parameter for selecting different pulse lasers to clean is needed.The parameter of above-mentioned preferably pulse laser 102 is applied widely, clearly
Wash effect good.Also, the laser cleaning of the present invention does not need water as cleansing medium, also significantly reduces while saving water resource
The cleaning cost of photovoltaic plant, it is to avoid the secondary pollution of medium in cleaning process.Also prevent to be washed under low temperature environment simultaneously
The problems such as surface that cell panel brings freezes.The electricity charge and General Maintenance expense are only needed to, other Material Costs will not be introduced, if
Standby to use steadily in the long term, operation cost is low, high working efficiency.
In some illustrative embodiments, in the step 4, the overburden is collected by dust exhaust apparatus and
Filter.Laser cleaning is contactless cleaning, and cleaning process does not contact photovoltaic solar cell plate, and accurately removes specified
The sandy environment of position.The particle peeled off during laser cleaning is adsorbed by dust catcher, prevents the secondary pollution of sand and dust, and after cleaning
Battery plate surface without sand and dust remain, so as to ensure that photovoltaic cell has good generating efficiency.
In some illustrative embodiments, the pulse laser 102 of the parameter is passed by optical fiber or light pipe by laser instrument
In transporting to light-beam forming unit, a spot shaping is obtained into the linear light spot by the apparatus for shaping, the linear light spot is through poly-
Focus lens (f-theta lens) and protective glass, are finally radiated at the region to be cleaned.
In some illustrative embodiments, the light-beam forming unit is scanning galvanometer or polygonal rotating mirror.
In some illustrative embodiments, the step of the employing transmission mechanism movement includes：Using mechanical arm 101,
One or more in machine carriage 201 is moved.Fig. 1 shows that the mechanical arm movement pulse of embodiments of the invention swashs
Light cleans the structural representation of photovoltaic solar cell plate；Fig. 2 shows that the machine carriage movement pulse of the embodiment of the present invention swashs
Light cleans the structural representation of photovoltaic solar cell plate.Mechanical arm 101 or the device control of machine carriage 201 in Fig. 1 or Fig. 2
The relative position on pulse laser processed 102 and surface to be cleaned 103 so that the focus of laser 102 is located at surface to be cleaned 103.
So far, although those skilled in the art will appreciate that detailed herein illustrate and describe multiple showing for the present invention
Example property embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers all these other variations or modifications.
Claims (9)
1. a kind of laser cleaning method of photovoltaic solar cell plate, it is characterised in that comprise the following steps：
Step one, according to the surface contamination species and thickness of the photovoltaic solar cell plate, the parameter of strobe pulse laser；
Step 2, pulse laser is carried out using the pulse laser of the parameter to the surface impurity of the photovoltaic solar cell plate
Scanning, the surface contaminant can overcome adhesion because producing from the different coefficients of expansion of the photovoltaic solar cell plate
Relative displacement, makes the surface contaminant peel off and be formed overburden from the photovoltaic solar cell plate；
Step 3, moves the pulse laser and scans all to be cleaned of the photovoltaic solar cell plate using transmission mechanism
Region；
Step 4, the overburden is collected.
2. laser cleaning method according to claim 1, it is characterised in that the pulse laser adopts linear light spot.
3. laser cleaning method according to claim 2, it is characterised in that in the parameter, the arteries and veins of the pulse laser
It is 10ns～100ns to rush width, and optical maser wavelength is 532nm～1064nm.
4. laser cleaning method according to claim 2, it is characterised in that in the parameter, the pulse laser it is flat
Power is 60W～300W, and pulse frequency is 1kHz～100kHz.
5. laser cleaning method according to claim 2, it is characterised in that in the parameter, the pulse laser it is flat
Power is 100W, and the optical maser wavelength is 1064nm, and the pulse frequency is 10kHz, the pulse width of the pulse laser
For 30ns.
6. laser cleaning method according to claim 1, it is characterised in that the step bag of the employing transmission mechanism movement
Include：Moved using one or more in mechanical arm, machine carriage.
7. laser cleaning method according to claim 1, it is characterised in that in the step 4, by dust exhaust apparatus pair
The overburden is collected and filters.
8. laser cleaning method according to claim 2, it is characterised in that the pulse laser of the parameter by optical fiber or
Light pipe is transmitted into light-beam forming unit by laser instrument, and a spot shaping is obtained into the linear light spot by the apparatus for shaping,
The linear light spot is finally radiated at the region to be cleaned through condenser lens and protective glass.
9. laser cleaning method according to claim 8, it is characterised in that the light-beam forming unit be scanning galvanometer or
Polygonal rotating mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112494.8A CN106623274A (en) | 2016-12-07 | 2016-12-07 | Laser cleaning method for photovoltaic solar cell panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112494.8A CN106623274A (en) | 2016-12-07 | 2016-12-07 | Laser cleaning method for photovoltaic solar cell panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106623274A true CN106623274A (en) | 2017-05-10 |
Family
ID=58820075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112494.8A Pending CN106623274A (en) | 2016-12-07 | 2016-12-07 | Laser cleaning method for photovoltaic solar cell panel |
Country Status (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030040A (en) * | 2017-06-08 | 2017-08-11 | 湖北韩泰智能设备有限公司 | A kind of igneous rock cracks laser cleaning machine and igneous rock cracks cleaning method |
| CN107321721A (en) * | 2017-08-28 | 2017-11-07 | 深圳光韵达光电科技股份有限公司 | A kind of SMT steel meshes cleaning device and cleaning method |
| CN113369250A (en) * | 2021-07-15 | 2021-09-10 | 西安热工研究院有限公司 | Method and system for cleaning stubborn dirt on surface of solar photovoltaic panel |
| CN113458090A (en) * | 2021-07-15 | 2021-10-01 | 西安热工研究院有限公司 | Method and system for cleaning stubborn dirt on surface of solar photovoltaic panel based on unmanned aerial vehicle |
| CN114029305A (en) * | 2021-11-16 | 2022-02-11 | 深圳剑科能源科技有限公司 | Intelligent cleaning robot for solar photovoltaic panel and cleaning working method |
| CN115336944A (en) * | 2022-08-11 | 2022-11-15 | 浙江大学 | Laser self-adaptive cleaning device and method for glass material surface |
| CN115488109A (en) * | 2022-10-14 | 2022-12-20 | 华能新能源上海发电有限公司 | Photovoltaic cell panel cleaning device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107030040A (en) * | 2017-06-08 | 2017-08-11 | 湖北韩泰智能设备有限公司 | A kind of igneous rock cracks laser cleaning machine and igneous rock cracks cleaning method |
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| CN113458090A (en) * | 2021-07-15 | 2021-10-01 | 西安热工研究院有限公司 | Method and system for cleaning stubborn dirt on surface of solar photovoltaic panel based on unmanned aerial vehicle |
| CN113458090B (en) * | 2021-07-15 | 2023-01-31 | 西安热工研究院有限公司 | Method and system for cleaning stubborn dirt on surface of solar photovoltaic panel based on unmanned aerial vehicle |
| CN114029305A (en) * | 2021-11-16 | 2022-02-11 | 深圳剑科能源科技有限公司 | Intelligent cleaning robot for solar photovoltaic panel and cleaning working method |
| CN115336944A (en) * | 2022-08-11 | 2022-11-15 | 浙江大学 | Laser self-adaptive cleaning device and method for glass material surface |
| CN115336944B (en) * | 2022-08-11 | 2024-04-09 | 浙江大学 | Laser self-adaptive cleaning device and method for glass material surface |
| CN115488109A (en) * | 2022-10-14 | 2022-12-20 | 华能新能源上海发电有限公司 | Photovoltaic cell panel cleaning device and method |
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