CN108167142A - A kind of method and apparatus of laser ablation fan blade surface icing - Google Patents
A kind of method and apparatus of laser ablation fan blade surface icing Download PDFInfo
- Publication number
- CN108167142A CN108167142A CN201711436217.7A CN201711436217A CN108167142A CN 108167142 A CN108167142 A CN 108167142A CN 201711436217 A CN201711436217 A CN 201711436217A CN 108167142 A CN108167142 A CN 108167142A
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- laser
- fan blade
- deicing
- predetermined threshold
- icing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laser Beam Processing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of method and apparatus of laser ablation fan blade surface icing, are related to laser and New Energy Industry combination technology field, the method includes：Laser sends ice-melt laser with the first spot diameter；Obtain the temperature on the fan blade surface；Judge whether the temperature reaches predetermined threshold；When the temperature reaches first predetermined threshold, the ice-melt laser of transmission is switched to next laser point by laser.Solve that de-icing method environmental pollution of the prior art is high, has damage to blade, is unable to the technical issues of intellectual monitoring blade icing situation, high degree of automation is reached, reduce labor intensity, improve working environment, working efficiency is high, environmental pollution is low, it can be achieved that the technique effect of effective deicing of different model fan blade.
Description
Technical field
The present invention relates to laser and New Energy Industry combination technology field more particularly to a kind of laser ablation fan blade table
The method and apparatus of face icing.
Background technology
The problem of Wind turbine mounted on clammy area often meets blade icing, causes vane airfoil profile to change, shadow
It will also result in Wind turbine off-center operation while ringing its dynamic characteristics, reduce unit efficiency, can even be led when icing is serious
Unit non-programmed halt is caused, influences the safe and stable operation of power grid.At present, there are two types of anti-icing and deicing method is current：Passively
Method and active method.Passive means are to eliminate or prevent to freeze using the physical property of blade surface；Active rule is using outer
Thermal energy, microwave that portion's system provides etc. carrys out deicing.But because of factors such as of high cost, security risk is big, energy consumption is big, low environmental protection,
It is not used widely, still takes shutdown waiting mode substantially after blade accumulated ice at present.Laser deicing is as a kind of new
Deicing mode combines heat effect and stress as deicing new direction and new approaches, while can also glue ice cube
Junction melt reduce ice cube and binding force so that ice cube towards the Change of types easily removed, these features can reverse shutdown etc.
The passive situation treated, and as laser power increases, volume reduces, laser deicing has broader development space.
But present inventor during inventive technique scheme, has found above-mentioned technology extremely in the embodiment of the present application is realized
It has the following technical problems less：
De-icing method environmental pollution of the prior art is high, has damage to blade, is unable to intellectual monitoring blade icing feelings
Condition.
Invention content
An embodiment of the present invention provides a kind of method and apparatus of laser ablation fan blade surface icing, solve existing
De-icing method environmental pollution in technology is high, has damage to blade, is unable to the technical issues of intellectual monitoring blade icing situation,
High degree of automation is reached, has reduced labor intensity, improved working environment, working efficiency is high, and environmental pollution is low, it can be achieved that not
With the technique effect of effective deicing of model fan blade.
In view of the above problems, it is proposed that the embodiment of the present application is in order to provide a kind of laser ablation fan blade surface icing
Method and apparatus.
In a first aspect, the present invention provides a kind of method of laser ablation fan blade surface icing, the method includes：
Laser sends ice-melt laser with the first spot diameter；Obtain the temperature on the fan blade surface；Whether judge the temperature
Reach predetermined threshold；When the temperature reaches first predetermined threshold, laser switches to down the ice-melt laser of transmission
One laser point.
Preferably, the method further includes：Obtain deicing track；Next laser is determined according to the deicing track
Point.
Preferably, the method further includes：When the temperature reaches the second predetermined threshold, laser stops light extraction,
In, second predetermined threshold is more than first predetermined threshold.
Preferably, the method further includes：The power for adjusting laser obtains the second spot diameter, wherein, described second
Spot diameter is less than the first spot diameter.
Preferably, the method further includes：Obtain the deicing picture of the fan blade；Whether judge the deicing picture
Meet predetermined condition；When a predetermined condition is satisfied, start the deicing of next blade.
Second aspect, the present invention provides a kind of device of laser ablation fan blade surface icing, described device includes：
First transmitting element, first transmitting element send ice-melt laser for laser with the first spot diameter；
First obtains unit, the first obtains unit are used to obtain the temperature on the fan blade surface；
First judging unit, first judging unit are used to judge whether the temperature reaches predetermined threshold；
First switch unit, first switch unit are used for when the temperature reaches first predetermined threshold, are swashed
The ice-melt laser of transmission is switched to next laser point by light device.
Preferably, described device further includes：
Second obtaining unit, second obtaining unit are used to obtain deicing track；
First determination unit, first determination unit are used to determine next laser point according to the deicing track.
Preferably, described device further includes：
First stop unit, first stop unit are used for when the temperature reaches the second predetermined threshold, laser
Stop light extraction, wherein, second predetermined threshold is more than first predetermined threshold.
Preferably, described device further includes：
Third obtaining unit, the power that the third obtaining unit is used to adjust laser obtain the second spot diameter,
In, second spot diameter is less than the first spot diameter.
Preferably, described device further includes：
4th obtaining unit, the 4th obtaining unit are used to obtain the deicing picture of the fan blade；
Second judgment unit, the second judgment unit are used to judge whether the deicing picture meets predetermined condition；
First execution unit, first execution unit are used to when a predetermined condition is satisfied, start the deicing of next blade.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit：
1st, the method and apparatus of a kind of laser ablation fan blade surface icing provided by the embodiments of the present application, pass through laser
Device sends ice-melt laser with the first spot diameter；Obtain the temperature on the fan blade surface；Judge whether the temperature reaches
Predetermined threshold；When the temperature reaches first predetermined threshold, laser switches to the ice-melt laser of transmission next sharp
Luminous point.Solve that de-icing method environmental pollution of the prior art is high, has damage to blade, is unable to intellectual monitoring blade icing
The technical issues of situation, has reached high degree of automation, reduces labor intensity, improves working environment, working efficiency is high, to environment
It pollutes low, it can be achieved that the technique effect of effective deicing of different model fan blade.
2nd, the embodiment of the present application is by obtaining deicing track；Next laser point is determined according to the deicing track.Into
One step solves the technical issues of de-icing method of the prior art is unable to intellectual monitoring blade icing situation, has reached automation
Degree is high, reduces labor intensity, improves the technique effect of deicing efficiency.
3rd, for the embodiment of the present application by when the temperature reaches the second predetermined threshold, laser stops light extraction, wherein, institute
The second predetermined threshold is stated more than first predetermined threshold.De-icing method of the prior art is further solved to damage blade
The technical issues of hindering, further having reached prevents fan blade from damaging, and improves the technique effect of deicing efficiency.
4th, the embodiment of the present application is by obtaining the deicing picture of the fan blade；Judge whether the deicing picture meets
Predetermined condition；When a predetermined condition is satisfied, start the deicing of next blade.Further solve de-icing method of the prior art
The technical issues of being unable to intellectual monitoring blade icing situation has further reached high degree of automation, reduces labor intensity, work
Efficient technique effect.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, below the special specific embodiment for lifting the present invention.
Description of the drawings
Fig. 1 is a kind of flow diagram of the method for laser ablation fan blade surface icing in the embodiment of the present invention；
Fig. 2 is a kind of structure diagram of the device of laser ablation fan blade surface icing in the embodiment of the present invention.
Specific embodiment
An embodiment of the present invention provides a kind of method and apparatus of laser ablation fan blade surface icing, existing for solving
There is the technology that de-icing method environmental pollution in technology is high, has damage to blade, is unable to intellectual monitoring blade icing situation to ask
Topic, technical solution general thought provided by the invention are as follows：
In the technical solution of the embodiment of the present invention, laser sends ice-melt laser with the first spot diameter；Described in acquisition
The temperature on fan blade surface；Judge whether the temperature reaches predetermined threshold；When the temperature reaches the described first predetermined threshold
During value, the ice-melt laser of transmission is switched to next laser point by laser.De-icing method of the prior art is solved to environment
Pollution is high, has damage to blade, is unable to the technical issues of intellectual monitoring blade icing situation, has reached high degree of automation, drops
Low labor intensity improves working environment, and working efficiency is high, environmental pollution it is low, it can be achieved that different model fan blade it is effective
The technique effect of deicing.
Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the application
Specific features in embodiment and embodiment are to the detailed description of technical scheme rather than to present techniques
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
Embodiment one
Fig. 1 is a kind of flow diagram of the method for laser ablation fan blade surface icing in the embodiment of the present invention.Such as
Shown in Fig. 1, the method includes：
Step 110：Laser sends ice-melt laser with the first spot diameter；
Specifically, first spot diameter is the range size of laser that the laser is sent out, when needs are to institute
When stating fan blade progress deicing, the spot diameter of the laser is made first, then as described in the setting of control subsystem
Laser works power emits the hot spot of fixed diameter size by beam emissions subsystem, while thermal control subsystem starts work
Make, laser subsystem and collimation head are controlled into trip temperature.For example, the vehicle-mounted integrated fan blade laser deicing system
After deicing task is received, the fan blade for needing deicing is chosen, the deicing system is adjusted to suitable position, opens
Tail gate is removed service cable and is connected with wind turbine, successively connected each subsystem, subsystem and service cable, then respectively
System boot self-test.Specifically, the fan blade laser deicing system footprint is on the structure subsystem of vehicular platform, including
Laser subsystem, wherein laser connection beam emissions subsystem and thermal control subsystem, beam emissions subsystem and red
Outer thermal imaging subsystem is placed sequentially on the turntable mounting surface of servo-drive subsystem, in order to reach higher deicing effect, through examination
After verification, optical maser wavelength may be selected ice and 1080 larger ± 100nm, power supply and distribution subsystem and visual light imaging absorbed to it
System is arranged separately on vehicular platform, and all subsystems, subsystem are carried out automatically controlling by control subsystem.The thermal control
Subsystem is mainly made of water cooling unit and liquid feeding pipeline and attachment.Further, the thermal control subsystem to the laser and
Beam emissions cylinder distinguishes feed flow, for mostly into having more fluid path.The laser transmitting system is by optical lens, dimension shape structural member and infrared
Thermometric thermal imaging system forms, wherein the thermal infrared imager is parallel with the two light path of the deicing laser, is sent out by the laser
The hot spot that the laser of injection obtains fixed size after optical system is amplified exposes to ice surface.The power supply and distribution subsystem is from wind
Power power plant or the generator provided for oneself take electricity, and the laser and water cooling unit are connected directly between on power supply, servo-drive system and control
Platform processed be connected to power supply it is single-phase on, in addition using AC/DC modules, AC power is converted into galvanic electricity source respectively to infrared measurement of temperature
Thermal imaging system, the power supply of visual light imaging subsystem.The charge subsystem is by control subsystem, servo-drive subsystem, visual light imaging
Subsystem and Power entry module composition, the charge subsystem are interconnected by network communication and distribution with other subsystems, provide people
Machine interaction platform, carries out the state of each subsystem monitoring in real time and control, and centralized dispatching manages each subsystem according to pre- constant current
Deicing operation is completed in journey and artificial participation, is realized and is integrated command and control to deicing system.
Step 120：Obtain the temperature on the fan blade surface；
Specifically, using the ice melting point principle different from the fan blade damaging temperature, remote infrared thermometric is used
The subsystem moment monitors and feeds back the temperature on the fan blade surface, and the infrared measurement of temperature subsystem is by infrared measurement of temperature thermal imagery
Instrument, high magnification visible light camera composition, the infrared measurement of temperature thermal imaging system are connect by USB interface or network interface with control centre,
Support externally fed.Accuse that the Driver function library of software transfer thermal infrared imager operates thermal imaging system.And then reaching
Before the damaging temperature threshold values for stating fan blade, by the fan blade under turn fire to blade one except freezing point, so as to can reach
Avoid technique effect of the laser to blade injury.
Step 130：Judge whether the temperature reaches predetermined threshold；
Step 140：When the temperature reaches first predetermined threshold, laser switches to the ice-melt laser of transmission
Next laser point.
Specifically, the predetermined threshold is the damaging temperature threshold value of the fan blade, pass through infrared measurement of temperature subsystem
The temperature on the fan blade surface is monitored and fed back in time, and judges whether its temperature reaches the predetermined threshold, when
When the temperature reaches first predetermined threshold, then the ice-melt laser of transmission can be switched to next laser by the laser
Point avoids damage of the laser to blade with this.For example, when infrared measurement of temperature subsystem is anti-to the temperature of the fan blade
When presenting normal, then continue de-icing work, when first predetermined threshold is set as 50 DEG C, that is to say, that infrared measurement of temperature
When the temperature that subsystem measures the fan blade is more than 50 DEG C, the laser can switch the ice-melt laser of transmission at this time
To next laser point.
Further, the method further includes：Obtain deicing track；Next laser is determined according to the deicing track
Point.
Specifically, by consing servo-drive subsystem, deicing region and deicing on the fan blade are set
Track can determine next laser point with automatic de-icing by the deicing track.The servo-drive subsystem is turned by servo
Platform and control module composition receive and accuse subsystem instruction, the pitching of control beam emissions subsystem, yawing rotation speed and rail
Mark.Simultaneously for security consideration, mechanical position limitation is done to the servo-drive subsystem, so as to reach the technology for improving deicing efficiency
Effect.
Further, the method further includes：When the temperature reaches the second predetermined threshold, laser stops light extraction,
Wherein, second predetermined threshold is more than first predetermined threshold.
Further, the method further includes：The power for adjusting laser obtains the second spot diameter, wherein, described the
Two spot diameters are less than the first spot diameter.
Specifically, when the temperature of the fan blade reaches the second predetermined threshold, then the laser will stop
Light then adjusts the operating power of the laser to obtain second spot diameter, wherein, second predetermined threshold is big
In first predetermined threshold, second spot diameter is less than the first spot diameter.For example, when infrared measurement of temperature subsystem
When measuring the temperature of the fan blade more than 70 DEG C, the laser stops light extraction at this time, then adjusts the laser
Power, and then continue by the laser light extraction, continue anti-ice operation.
Further, the method further includes：Obtain the deicing picture of the fan blade；Judging the deicing picture is
It is no to meet predetermined condition；When a predetermined condition is satisfied, start the deicing of next blade.
Specifically, after the laser stops light extraction, can the wind turbine leaf be obtained by visual light imaging subsystem
The deicing picture of piece, further judges deicing effect, and the visual light imaging subsystem passes through in Ethernet and control
The heart connects, and the drive software of video camera is run by control centre, when judging result qualification, will transfer to next blade and continues
Deicing, and then repeat above-mentioned workflow；When judging that result is unqualified, then continue to carry out deicing work by the laser light extraction
Make, until judgement result is qualified.
Embodiment 2
Based on the same inventive concept of method of laser ablation fan blade surface icing a kind of in previous embodiment, this
Invention also provides a kind of device of laser ablation fan blade surface icing, as shown in Fig. 2, including：
First transmitting element 11, first transmitting element 13 send ice-melt with the first spot diameter for laser and swash
Light；
First obtains unit 12, second obtaining unit 12 are used to obtain the temperature on the fan blade surface；
First judging unit 13, first judging unit 13 are used to judge whether the temperature reaches predetermined threshold；
First switch unit 14, first switch unit 14 are used to reach first predetermined threshold when the temperature
When, the ice-melt laser of transmission is switched to next laser point by laser.
Further, described device further includes：
Second obtaining unit, second obtaining unit are used to obtain deicing track；
First determination unit, first determination unit are used to determine next laser point according to the deicing track.
Further, described device further includes：
First stop unit, first stop unit are used for when the temperature reaches the second predetermined threshold, laser
Stop light extraction, wherein, second predetermined threshold is more than first predetermined threshold.
Further, described device further includes：
Third obtaining unit, the power that the third obtaining unit is used to adjust laser obtain the second spot diameter,
In, second spot diameter is less than the first spot diameter.
Further, described device further includes：
4th obtaining unit, the 4th obtaining unit are used to obtain the deicing picture of the fan blade；
Second judgment unit, the second judgment unit are used to judge whether the deicing picture meets predetermined condition；
First execution unit, first execution unit are used to when a predetermined condition is satisfied, start the deicing of next blade.
A kind of the various change mode and tool of the method for laser ablation fan blade surface icing in 1 embodiment 1 of earlier figures
Body example is equally applicable to a kind of device of laser ablation fan blade surface icing of the present embodiment, and one kind is swashed by aforementioned
The detailed description of the method for light removal fan blade surface icing, those skilled in the art are clear that in the present embodiment
A kind of implementation of the device of laser ablation fan blade surface icing, so in order to illustrate the succinct of book, herein no longer in detail
It states.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit：
1st, the method and apparatus of a kind of laser ablation fan blade surface icing provided by the embodiments of the present application, pass through laser
Device sends ice-melt laser with the first spot diameter；Obtain the temperature on the fan blade surface；Judge whether the temperature reaches
Predetermined threshold；When the temperature reaches first predetermined threshold, laser switches to the ice-melt laser of transmission next sharp
Luminous point.Solve that de-icing method environmental pollution of the prior art is high, has damage to blade, is unable to intellectual monitoring blade icing
The technical issues of situation, has reached high degree of automation, reduces labor intensity, improves working environment, working efficiency is high, to environment
It pollutes low, it can be achieved that the technique effect of effective deicing of different model fan blade.
2nd, the embodiment of the present application is by obtaining deicing track；Next laser point is determined according to the deicing track.Into
One step solves the technical issues of de-icing method of the prior art is unable to intellectual monitoring blade icing situation, has reached automation
Degree is high, reduces labor intensity, improves the technique effect of deicing efficiency.
3rd, for the embodiment of the present application by when the temperature reaches the second predetermined threshold, laser stops light extraction, wherein, institute
The second predetermined threshold is stated more than first predetermined threshold.De-icing method of the prior art is further solved to damage blade
The technical issues of hindering, further having reached prevents fan blade from damaging, and improves the technique effect of deicing efficiency.
4th, the embodiment of the present application is by obtaining the deicing picture of the fan blade；Judge whether the deicing picture meets
Predetermined condition；When a predetermined condition is satisfied, start the deicing of next blade.Further solve de-icing method of the prior art
The technical issues of being unable to intellectual monitoring blade icing situation has further reached high degree of automation, reduces labor intensity, work
Efficient technique effect.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (6)
- A kind of 1. method of laser ablation fan blade surface icing, which is characterized in that the method includes：Laser sends ice-melt laser with the first spot diameter；Obtain the temperature on the fan blade surface；Judge whether the temperature reaches predetermined threshold；When the temperature reaches first predetermined threshold, the ice-melt laser of transmission is switched to next laser point by laser.
- 2. the method as described in claim 1, which is characterized in that the method further includes：Obtain deicing track；Next laser point is determined according to the deicing track.
- 3. the method as described in claim 1, which is characterized in that the method further includes：When the temperature reaches the second predetermined threshold, laser stops light extraction, wherein, second predetermined threshold is more than described First predetermined threshold.
- 4. method as claimed in claim 3, which is characterized in that the method further includes：The power for adjusting laser obtains the second spot diameter, wherein, second spot diameter is less than the first spot diameter.
- 5. the method as described in claim 1, which is characterized in that the method further includes：Obtain the deicing picture of the fan blade；Judge whether the deicing picture meets predetermined condition；When a predetermined condition is satisfied, start the deicing of next blade.
- 6. a kind of device of laser ablation fan blade surface icing, which is characterized in that described device includes：First transmitting element, first transmitting element send ice-melt laser for laser with the first spot diameter；First obtains unit, the first obtains unit are used to obtain the temperature on the fan blade surface；First judging unit, first judging unit are used to judge whether the temperature reaches predetermined threshold；First switch unit, first switch unit are used for when the temperature reaches first predetermined threshold, laser The ice-melt laser of transmission is switched into next laser point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436217.7A CN108167142A (en) | 2017-12-26 | 2017-12-26 | A kind of method and apparatus of laser ablation fan blade surface icing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711436217.7A CN108167142A (en) | 2017-12-26 | 2017-12-26 | A kind of method and apparatus of laser ablation fan blade surface icing |
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| Publication Number | Publication Date |
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| CN108167142A true CN108167142A (en) | 2018-06-15 |
Family
ID=62521293
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| CN201711436217.7A Pending CN108167142A (en) | 2017-12-26 | 2017-12-26 | A kind of method and apparatus of laser ablation fan blade surface icing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108599078A (en) * | 2018-06-16 | 2018-09-28 | 南京理工大学 | A kind of laser deicing method based on path planning |
| CN110830681A (en) * | 2018-08-09 | 2020-02-21 | 神讯电脑(昆山)有限公司 | License plate camera device and method for removing target object covered by same |
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| EP3165766A1 (en) * | 2015-11-06 | 2017-05-10 | Acciona Windpower, S.A. | Wind turbine and method for ice removal in wind turbines |
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| CN101499635A (en) * | 2008-01-31 | 2009-08-05 | 闫锋 | Novel process for cleaning covering ice and snow by laser and laser deicing machine |
| WO2015048974A1 (en) * | 2013-10-04 | 2015-04-09 | Vestas Wind Systems A/S | Heated liquid de-icing |
| EP3165766A1 (en) * | 2015-11-06 | 2017-05-10 | Acciona Windpower, S.A. | Wind turbine and method for ice removal in wind turbines |
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| CN110830681A (en) * | 2018-08-09 | 2020-02-21 | 神讯电脑(昆山)有限公司 | License plate camera device and method for removing target object covered by same |
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Application publication date: 20180615 |