CN108799018A - A kind of de-icing method including fan blade deicing system - Google Patents
A kind of de-icing method including fan blade deicing system Download PDFInfo
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- CN108799018A CN108799018A CN201810586074.6A CN201810586074A CN108799018A CN 108799018 A CN108799018 A CN 108799018A CN 201810586074 A CN201810586074 A CN 201810586074A CN 108799018 A CN108799018 A CN 108799018A
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- China
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- blade
- ene coatings
- graphite ene
- ring
- 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
-
- 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
- F03D80/60—Cooling or heating of wind motors
-
- 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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- Engineering & Computer Science (AREA)
- 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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Wind Motors (AREA)
Abstract
The invention belongs to technical field of wind power generation more particularly to a kind of de-icing methods including fan blade deicing system.The deicing system includes the blade with blade root and blade tip, deicer, icing diagnostic device；The deicer includes graphite ene coatings, heating electrode, controller；The graphite ene coatings include graphite ene coatings ring and graphite ene coatings item, the graphite ene coatings ring on the cross section vertical with blade string circlewise, the graphite ene coatings ring for forming multiple and different spacing on from blade root to the fan blade outer casing inner wall in blade tip direction is respectively equipped with the graphite ene coatings item of the connection graphite ene coatings ring from blade root to blade tip in the leading edge of blade inner wall and rear line.The present invention in such a way that graphite ene coatings ring is combined, designs special distributed architecture, size and connection relation using graphite ene coatings item, it is ensured that the stabilization of blade deicing effect, reliable.
Description
Technical field
The invention belongs to technical field of wind power generation more particularly to a kind of deicing sides including fan blade deicing system
Method.
Background technology
There is icing in wind electricity blade surface, this can cause the performance of blade and wind power generating set power output that can not reach
To design requirement, and certain influence is also brought to wind field, unit operation and personnel safety.Therefore, blade it is anti-icing with remove
Ice is particularly important.Existing deicing mode includes mainly mechanical deicing and heating power deicing, the former mainly utilizes mechanical means
Ice is crushed, then air-flow is leaned on to blow down, or ice is removed, but can bring machine to blade construction in this way using centrifugal force, vibration
The risk of tool damage；And the latter directly uses Resistant heating to deicing, however, using the method meeting of Resistant heating mostly
Cause energy waste, overall cost higher and the problems such as manual maintenance is inconvenient.
The present invention is designed a kind of de-icing method for the fan blade deicing system being heated coating based on graphene and solved such as
Upper problem.
Invention content
To solve drawbacks described above in the prior art, the present invention discloses a kind of fan blade heating coating based on graphene
Deicing system, it is realized using following technical scheme.
A kind of de-icing method including fan blade deicing system, it is characterised in that：The deicing system includes having leaf
The blade of root and blade tip, deicer, icing diagnostic device；The deicer includes graphite ene coatings, heating electrode, control
Device；The graphite ene coatings use multi-layer graphene structure, by former less than the periodically closelypacked carbon of the benzene ring structure of 8nm
Son is constituted with different way of stacking；
The graphene slurry for preparing the graphite ene coatings is obtained by hydroiodic acid redox graphene, by a mold according to
Secondary knifing, heat treatment, again knifing, polishing, obtain graphite ene coatings, the graphite ene coatings include graphite ene coatings ring and graphite
Ene coatings item, and graphite ene coatings are laid in blade root to the inner wall of the blade enclosure in blade tip direction before blade assembling
On, the graphite ene coatings circlewise, are formed from blade root to the wind turbine in blade tip direction on the cross section vertical with blade string
The graphite ene coatings ring of multiple and different spacing on blade enclosure inner wall；And/or simultaneously along the leading edge of blade inner wall and rear line
On be respectively equipped with the graphite ene coatings item through the graphite ene coatings ring from blade root to blade tip, which will
The graphite ene coatings ring connection with different spacing, so that temperature is conducted from graphite ene coatings item to graphite ene coatings ring,
And then it is transmitted rapidly between each graphite ene coatings ring；The graphite ene coatings fringe region along blade root to blade tip
Direction be disposed with heating electrode, the heating electrode connects controller by power cord；
Arrange that several icing diagnostic devices, the icing diagnostic device detect present position along edge and rear in front of the blade respectively
Neighborhood area section in layers of ice average thickness, judge the icing layer thickness whether be more than setting thickness threshold value, if
It is then to start deicer, power supply power supply is simultaneously conducted to graphite ene coatings by controller coordination electrode to add to blade
Heat does not start deicer if icing diagnostic device detects that layers of ice average thickness is less than the thickness threshold value；
As being further improved for this technology, edge arranges three to the icing diagnostic device respectively along the line with rear in front of the blade
It is a, it is located at blade root, blade tip, blade inlet edge/rear midpoint；The condition for starting deicer is specially in leaf
Icing layer thickness at root, blade tip, blade inlet edge/rear midpoint difference at least one is more than setting thickness threshold value；
As being further improved for this technology, the thickness of the graphite ene coatings ring is 20-25 μm, and width is 10-13mm or 50-
63mm；From blade root to the direction of blade tip, the spacing between the graphite ene coatings ring is reduced with monotonic decreasing function relationship trend,
So that obtained at blade tip higher specific surface heating power or the functional relation be f (x)=|-x+cos (x) |, wherein
X is section（0, N）Between positive integer, N is the graphite ene coatings ring sum on blade, and f (x) is from blade root to blade tip side
To the distance between each adjoining graphite ene coatings ring kernel of section line, minimum value levels off to zero；
As being further improved for this technology, the width of the graphite ene coatings item is 10-13mm or 50-63mm, the graphite
The thickness of ene coatings item meets following functional relation：F (x)=| x-sin (x) |, wherein x is section（0, N）Between positive integer,
F (x) is the thickness value of the graphite ene coatings item between each adjoining graphite ene coatings ring from blade root to blade tip direction.
Relative to traditional fan blade clearing ice technology, the present invention overcomes existing electrical heating deicing modes to be required for greatly
The power supply measured outside using wind turbine is powered heating to heater, the problem of so as to cause a large amount of energy consumptions；Meanwhile utilizing graphite
The method of alkene surface coating designs special distributed architecture using graphite ene coatings item in such a way that graphite ene coatings ring is combined
With connection relation, it is ensured that the stability and reliability of graphite ene coatings heating, while using blade construction feature as foundation, using
Along the different pitch structures of the different-thickness and graphite ene coatings ring of the graphite ene coatings of blade root to blade tip, coating heating is increased
Structure adaptability, to blade different location subregion, power is divided to heat, deicing effect greatly enhances, comprehensive energy consumption
Also it is reduced.
Description of the drawings
Fig. 1 is horizontal axis wind-driven generator schematic diagram.
Fig. 2 is blade icing layer partial enlarged view.
Fig. 3 is provided with the blade construction schematic diagram of graphite ene coatings ring.
Fig. 4 is provided with the blade construction schematic diagram of graphite ene coatings ring/item.
Specific implementation mode
It is illustrated in figure 2 blade cross-sectional profile figure when blade icing layer is located at blade surface, from the figure, it can be seen that
Layers of ice is covered in blade enclosure outer surface, and graphite ene coatings are then arranged on blade enclosure inner wall, along blade open up to
Direction is circlewise distributed, which controls its electric break-make according to the signal of icing detection device sent out by controller,
Also, the pulse signal that graphite ene coatings ring is sent out with graphite ene coatings item according to icing detection device, the two mutually cooperate with difference
Or collective effect is in blade shell surface, to carry out heating and melting processing to layers of ice.
As shown in figure 4, the graphite ene coatings include graphite ene coatings ring and graphite ene coatings item, and graphene is applied
Layer before blade assembling i.e. be laid on blade root to the inner wall of the blade enclosure in blade tip direction, the graphite ene coatings with leaf
On the vertical cross section of piece string circlewise, it is formed multiple and different on from blade root to the fan blade outer casing inner wall in blade tip direction
The graphite ene coatings ring of spacing, and say that blade surface has been divided into 10 sections by the way that graphite ene coatings ring is arranged in Fig. 3,4；Simultaneously along leaf
The graphene through the graphite ene coatings ring from blade root to blade tip is respectively equipped in the leading edge and rear line of piece inner wall to apply
Layer item, the graphite ene coatings item is by the graphite ene coatings ring connection with different spacing, so that temperature is from graphite ene coatings
Item is conducted to graphite ene coatings ring, and is transmitted rapidly between each graphite ene coatings ring.
Wherein, line segment AB is line of the blade from blade root to blade tip, is had with the longest vertical lines in blade cross section
There is intersection point C, and is a wherein graphite ene coatings ring along the intersection of plane and blade enclosure inner wall where middle string.
Specific implementation mode：A kind of de-icing method including fan blade deicing system, it is characterised in that：The deicing system
System includes the blade with blade root and blade tip, deicer, icing diagnostic device；The deicer include graphite ene coatings,
Heat electrode, controller；The graphite ene coatings use multi-layer graphene structure, periodical by the benzene ring structure less than 8nm
Closelypacked carbon atom is constituted with different way of stacking；
The graphene slurry for preparing the graphite ene coatings is obtained by hydroiodic acid redox graphene, by a mold according to
Secondary knifing, heat treatment, again knifing, polishing, obtain graphite ene coatings, the graphite ene coatings include graphite ene coatings ring and graphite
Ene coatings item, and graphite ene coatings are laid in blade root to the inner wall of the blade enclosure in blade tip direction before blade assembling
On, the graphite ene coatings circlewise, are formed from blade root to the wind turbine in blade tip direction on the cross section vertical with blade string
The graphite ene coatings ring of multiple and different spacing on blade enclosure inner wall；Or simultaneously in the leading edge and rear line of blade inner wall
It is respectively equipped with the graphite ene coatings item through the graphite ene coatings ring from blade root to blade tip, the graphite ene coatings item is by institute
The graphite ene coatings ring connection with different spacing is stated, so that temperature is conducted from graphite ene coatings item to graphite ene coatings ring, and
It is transmitted rapidly between each graphite ene coatings ring；The graphite ene coatings fringe region along blade root to blade tip side
To heating electrode is disposed with, the heating electrode connects controller by power cord；
Arrange that several icing diagnostic devices, the icing diagnostic device detect present position along edge and rear in front of the blade respectively
Neighborhood area section in layers of ice average thickness, judge the icing layer thickness whether be more than setting thickness threshold value, if
It is then to start deicer, power supply power supply is simultaneously conducted to graphite ene coatings by controller coordination electrode to add to blade
Heat；
As being further improved for this technology, edge arranges three to the icing diagnostic device respectively along the line with rear in front of the blade
It is a, it is located at blade root, blade tip, blade inlet edge/rear midpoint；The condition for starting deicer is specially in leaf
Icing layer thickness at root, blade tip, blade inlet edge/rear midpoint difference at least one is more than setting thickness threshold value；
As being further improved for this technology, the thickness of the graphite ene coatings ring is 20-25 μm, and width is 10-13mm or 50-
63mm；From blade root to the direction of blade tip, the spacing between the graphite ene coatings ring is reduced with monotonic decreasing function relationship trend,
So that obtained at blade tip higher specific surface heating power or the functional relation be f (x)=|-x+cos (x) |, wherein
X is section（0, N）Between positive integer, N is the graphite ene coatings ring sum on blade, and f (x) is from blade root to blade tip side
To the distance between each adjoining graphite ene coatings ring kernel of section line, minimum value levels off to zero；
As being further improved for this technology, the width of the graphite ene coatings item is 10-13mm or 50-63mm, the graphite
The thickness of ene coatings item meets following functional relation：F (x)=| x-sin (x) |, wherein x is section（0, N）Between positive integer,
F (x) is the thickness value of the graphite ene coatings item between each adjoining graphite ene coatings ring from blade root to blade tip direction.
The preferred embodiment of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these belong to this hair
Bright protection domain.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (4)
1. a kind of de-icing method including fan blade deicing system, it is characterised in that：The deicing system includes having blade root
With the blade, deicer, icing diagnostic device of blade tip；The deicer includes graphite ene coatings, heating electrode, control
Device；The graphite ene coatings use multi-layer graphene structure, by former less than the periodically closelypacked carbon of the benzene ring structure of 8nm
Son is constituted with different way of stacking；
The graphene slurry for preparing the graphite ene coatings is obtained by hydroiodic acid redox graphene, by a mold according to
Secondary knifing, heat treatment, again knifing, polishing, obtain graphite ene coatings；The graphite ene coatings include graphite ene coatings ring and graphite
Ene coatings item, and graphite ene coatings are laid in blade root to the inner wall of the blade enclosure in blade tip direction before blade assembling
On, the graphite ene coatings circlewise, are formed from blade root to the wind turbine in blade tip direction on the cross section vertical with blade string
The graphite ene coatings ring of multiple and different spacing on blade enclosure inner wall；And/or simultaneously along the leading edge of blade inner wall and rear line
On be respectively equipped with the graphite ene coatings item through the graphite ene coatings ring from blade root to blade tip, which will
The graphite ene coatings ring connection with different spacing, so that temperature is conducted from graphite ene coatings item to graphite ene coatings ring,
And then it is transmitted rapidly between each graphite ene coatings ring；On the fringe region edge of the graphite ene coatings item or graphite ene coatings ring
The direction for blade root to blade tip is disposed with heating electrode, and the heating electrode connects controller by power cord；
Arrange that several icing diagnostic devices, the icing diagnostic device detect present position along edge and rear in front of the blade respectively
Neighborhood area section in layers of ice average thickness, judge the icing layer thickness whether be more than setting thickness threshold value, if
It is then to start deicer, power supply power supply is simultaneously conducted to graphite ene coatings by controller coordination electrode to add to blade
Heat does not start deicer if icing diagnostic device detects that layers of ice average thickness is less than the thickness threshold value.
2. a kind of de-icing method including fan blade deicing system according to claim 1, it is characterised in that：The stone
The thickness of black ene coatings ring is 20-25 μm, and width is 10-13mm or 50-63mm；From blade root to the direction of blade tip, the graphite
Spacing between ene coatings ring is reduced with monotonic decreasing function relationship trend, so as to obtain higher specific surface heating at blade tip
Power or the functional relation be f (x)=|-x+cos (x) |, wherein x is section（0, N）Between positive integer, N be one
Graphite ene coatings ring sum on blade, f (x) is each adjoining graphite ene coatings ring kernel of section from blade root to blade tip direction
The distance between line, minimum value level off to zero.
3. a kind of de-icing method including fan blade deicing system according to claim 1, it is characterised in that：The stone
The width of black ene coatings item is 10-13mm or 50-63mm, and the thickness of the graphite ene coatings item meets following functional relation：f
(x)=| x-sin (x) |, wherein x is section（0, N）Between positive integer, f (x) be it is each adjacent from blade root to blade tip direction
The thickness value of graphite ene coatings item between graphite ene coatings ring.
4. a kind of de-icing method including fan blade deicing system according to claim 2 or 3, it is characterised in that：Institute
Stating icing diagnostic device, edge arranges three, before being located at blade root, blade tip, blade with difference along rear in front of the blade
Edge/rear midpoint；The condition for starting deicer be specially blade root, blade tip, blade inlet edge/rear midpoint respectively extremely
Icing layer thickness at rare one is more than setting thickness threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586074.6A CN108799018A (en) | 2018-06-08 | 2018-06-08 | A kind of de-icing method including fan blade deicing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586074.6A CN108799018A (en) | 2018-06-08 | 2018-06-08 | A kind of de-icing method including fan blade deicing system |
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| CN108799018A true CN108799018A (en) | 2018-11-13 |
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| CN201810586074.6A Pending CN108799018A (en) | 2018-06-08 | 2018-06-08 | A kind of de-icing method including fan blade deicing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118157A (en) * | 2019-06-12 | 2019-08-13 | 大连义邦科技有限公司 | Pneumatic equipment bladess de-icing method, device, blade and wind energy conversion system |
| CN112096577A (en) * | 2020-08-31 | 2020-12-18 | 昆明理工大学 | Fan blade defroster |
| CN112128067A (en) * | 2020-10-20 | 2020-12-25 | 建德林欣新能源科技有限公司 | Efficient cooling wind driven generator capable of automatically carrying out blade deicing operation |
| WO2021007797A1 (en) * | 2019-07-17 | 2021-01-21 | 3M Innovative Properties Company | Thin electrothermal film heater with variable thermal output |
| CN113187676A (en) * | 2021-04-27 | 2021-07-30 | 昆明理工大学 | Fan blade partition electric heating deicing device |
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| CN105856586A (en) * | 2016-04-12 | 2016-08-17 | 南京航空航天大学 | Icing protection system for wind turbine blade with graphene electrothermal films |
| CN206256999U (en) * | 2016-12-06 | 2017-06-16 | 北京金风科创风电设备有限公司 | Anti-freeze blade structure for wind driven generator and wind power generating set |
| CN107084100A (en) * | 2017-06-19 | 2017-08-22 | 东方电气风电有限公司 | A kind of preparation method of wind electricity blade heating ice melting system based on graphene heating film and the blade |
| CN108119320A (en) * | 2016-11-30 | 2018-06-05 | 北京金风科创风电设备有限公司 | Self-generating heating deicing device, blade, wind driven generator and deicing method |
| CN108167141A (en) * | 2017-11-16 | 2018-06-15 | 内蒙古久和能源装备有限公司 | For the anti-icing and deicing system and method for wind power generating set |
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Patent Citations (5)
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| CN105856586A (en) * | 2016-04-12 | 2016-08-17 | 南京航空航天大学 | Icing protection system for wind turbine blade with graphene electrothermal films |
| CN108119320A (en) * | 2016-11-30 | 2018-06-05 | 北京金风科创风电设备有限公司 | Self-generating heating deicing device, blade, wind driven generator and deicing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118157A (en) * | 2019-06-12 | 2019-08-13 | 大连义邦科技有限公司 | Pneumatic equipment bladess de-icing method, device, blade and wind energy conversion system |
| WO2021007797A1 (en) * | 2019-07-17 | 2021-01-21 | 3M Innovative Properties Company | Thin electrothermal film heater with variable thermal output |
| CN112096577A (en) * | 2020-08-31 | 2020-12-18 | 昆明理工大学 | Fan blade defroster |
| CN112128067A (en) * | 2020-10-20 | 2020-12-25 | 建德林欣新能源科技有限公司 | Efficient cooling wind driven generator capable of automatically carrying out blade deicing operation |
| CN113187676A (en) * | 2021-04-27 | 2021-07-30 | 昆明理工大学 | Fan blade partition electric heating deicing device |
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Application publication date: 20181113 |
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