CN106321372A - Composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting - Google Patents
Composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting Download PDFInfo
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- CN106321372A CN106321372A CN201611040757.9A CN201611040757A CN106321372A CN 106321372 A CN106321372 A CN 106321372A CN 201611040757 A CN201611040757 A CN 201611040757A CN 106321372 A CN106321372 A CN 106321372A
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- China
- Prior art keywords
- carbon fiber
- wind
- driven generator
- blade
- ice
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
-
- 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
Abstract
The invention discloses a composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting. The composite carbon fiber heating element comprises an insulating heat conduction layer and a carbon fiber grid heating layer used for being attached to a wind-driven generator blade, wherein the insulating heat conduction layer and the carbon fiber grid heating layer are sequentially arranged from outside to inside. The composite carbon fiber heating element for wind-driven generator blade ice preventing or ice melting can be attached to the surface of the wind-driven generator blade, and it is guaranteed that the composite heating unit has the high heat transfer efficiency and the good ice preventing or ice melting effect on the premise that the original aerodynamic performance of the wind-driven generator blade is invariable; in addition, the installing process is simple, and the mechanical structural strength of the blade is not affected.
Description
Technical field
The present invention relates to a kind of carbon fiber heating element, particularly to one be applicable to blade of wind-driven generator anti-icing/melt
The composite carbon fiber heater element of ice.
Background technology
The most often there is icing phenomenon in the blade of wind-driven generator of high Humid Area, icing phenomenon can have a strong impact on wind-force
The aeroperformance of electromotor and situation of exerting oneself.Serious icing will cause wind turbine power generation amount to fall sharply, and blade folding even occurs
The accidents such as disconnected, wind-driven generator damage, cause tremendous economic to lose.
In recent years, south China height Humid Area icing in winter disaster is frequent, wind energy turbine set Frequent Accidents.Such as in December, 2011,
South Mountain, Hunan 25 Fans causes wind-driven generator to be stopped transport because of icing, amounts to loss electricity 107.25 ten thousand kWh.Wind-driven generator leaf
The quality of piece performance directly influences the stability that complete machine runs.When blade of wind-driven generator freezes serious, its blade shape
Huge change can occur, and blade lift will reduce, and resistance will increase, and reduces exerting oneself of wind-driven generator.Additionally, blade covers
Ice makes wind wheel focal position also change, and affects the control of wind-driven generator, wind-driven generator can be caused to damage, nothing time serious
Method meets the requirement of wind turbine power generation machine safe and reliable operation.
In prior art, wind-driven generator ice-melt/anti-icing used heater element is mainly with alloy resistance wire as core
The silicone rubber composite heating element of the heart.The thickness of alloy resistance wire class composite heating element, typically at more than 3mm, needs to be embedded in
Under the surface of blade of wind-driven generator, it exists, and mounting process is complicated, easily affect the problems such as blade mechanism intensity.
Therefore, prior art wind electromotor ice-melt/anti-icing used heater element is improved so that it is install
Technique simply, does not affect blade mechanism intensity, and effect of aerodynamic performance original to blade of wind-driven generator is little, and ice-melt/anti-icing
Effective.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of be applicable to blade of wind-driven generator anti-icing/ice-melt compound
Carbon fiber heating element so that it is mounting process simply, does not affect blade mechanism intensity, original pneumatic to blade of wind-driven generator
Performance impact is little, and ice-melt/anti-icing effective.
The present invention be applicable to blade of wind-driven generator anti-icing/the composite carbon fiber heater element of ice-melt, including by extroversion
The thermal insulation layer inside set gradually and the carbon fiber mesh heating layer being on blade of wind-driven generator for attaching.
Further, described carbon fiber mesh heating layer uses 1k filament carbon fibre material to make, carbon fiber mesh heating layer
Thickness less than 0.1mm.
Further, the resistance value of the described every centimetre length of 1k filament carbon fibre is 1.4 Ω, described carbon fiber mesh heating layer
Mesh-density be 4/cm2, carbon fiber mesh heating layer thermal power density is designed as 1W/cm2。
Further, described carbon fiber mesh heating layer is through resin cured.
Further, described grid is square.
Further, the two ends of described carbon fiber mesh heating layer are provided with conductive electrode, and described conductive electrode exists for plating
Conducting metal on the filament carbon fibre at carbon fiber mesh heating layer two ends.
Further, described thermal insulation layer uses PVF film to make.
Further, it is provided with insulated thermal insulating layer between described carbon fiber mesh heating layer and blade of wind-driven generator.
Further, the thickness of described thermal insulation layer, carbon fiber mesh heating layer and insulated thermal insulating layer increases successively.
Further, EVA hot-melt adhesive is used between described carbon fiber mesh heating layer and described thermal insulation layer and thermal insulation layer
Bonding.
Beneficial effects of the present invention: the present invention be applicable to blade of wind-driven generator anti-icing/the composite carbon fiber of ice-melt sends out
Thermal element, it is possible to be attached to blade of wind-driven generator surface, in the premise that the original aeroperformance of blade of wind-driven generator is constant
Under, it is ensured that composite heating unit has higher heat transfer efficiency and the most anti-icing/ice-melt effect, and mounting process is simple
Single, do not affect blade mechanism structural strength.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
The structural representation that Fig. 1 is the present invention, as shown in the figure: the present invention be applicable to blade of wind-driven generator anti-icing/
The composite carbon fiber heater element of ice-melt, the thermal insulation layer 1 set gradually including ecto-entad and for attach be wind-force
Carbon fiber mesh heating layer 2 on generator blade, refers to outward the direction of blade of wind-driven generator, inside refers near wind-force
The direction of generator blade, can be pasted onto carbon fiber mesh heating layer 2 on blade of wind-driven generator or use prior art
In additive method be attached on blade of wind-driven generator；When enter easily there is icing season time, to carbon fiber mesh heating layer
Heating power carries out anti-icing or ice-melt, and carbon fiber is soft outside but hard inside, and quality is lighter than metallic aluminium, but intensity is higher than iron and steel, and has
Having corrosion-resistant, the characteristic of high-modulus, the carbon fiber thermal coefficient of expansion is little and has anisotropy, good corrosion resistance, has good
Electrical and thermal conductivity performance, electromagnetic wave shielding are good, to wind-power electricity generation when the characteristic of high-modulus makes to be attached on blade of wind-driven generator
The original aeroperformance of machine blade can be affixed directly on blade of wind-driven generator almost without impact, the heater element of the present invention,
Mounting process is simple.
In the present embodiment, described carbon fiber mesh heating layer 2 uses 1k filament carbon fibre material to make, and 1k refers to carbon fiber
In tow, monofilament quantity is 1000, and the thickness of carbon fiber mesh heating layer 2 is less than 0.1mm；1k filament carbon fibre tow is prone to exhibition
Opening, thickness in monolayer is thin, and effect of aerodynamic performance original to blade of wind-driven generator is less.
In the present embodiment, the resistance value of the described every centimetre length of 1k filament carbon fibre is 1.4 Ω, and described carbon fiber mesh is sent out
The mesh-density of thermosphere is 4/cm2, i.e. every square centimeter is provided with 4 grids, grid could be arranged to rhombus or pros
Shape, is preferably square, and carbon fiber mesh heating layer thermal power density is designed as 1W/cm2；Carbon fiber mesh heating layer is passed through
After electric current, first the temperature of the carbon fibre web ruling being made up of 1k filament carbon fibre will raise, and heat is gradually to the internal expansion of grid
Scattered, form temperature gradient distribution, foursquare grid makes heat diffusion more uniform, prevents heat from spreading uneven causing greatly
Ice cube is got rid of causes potential safety hazard, and the design of thermal power density both can reach the anti-icing or effect of ice-melt, does not wastes
The energy.
In the present embodiment, described carbon fiber mesh heating layer 2, can be by the asphalt mixtures modified by epoxy resin of hot melt through resin cured
Fat carries out cured；After cured, the shape of grid is fixed, and is further ensured that the uniformity that heat spreads.
In the present embodiment, the two ends of described carbon fiber mesh heating layer 2 are provided with conductive electrode 3, and described conductive electrode 3 is
Plating conducting metal on the filament carbon fibre at carbon fiber mesh heating layer two ends, can be at carbon fiber mesh heating layer resin
Presoak 10-15mm at two ends during cured, remove the resin in preimpregnation length by surface clean, make carbon fiber mesh generate heat
The carbon fiber at layer two ends comes out, and plates metal as electrode at expose portion, can be with conducting metals such as copper facing；Electroplated electrode
The most electrically conductive, and thickness is thin, and effect of aerodynamic performance original to blade of wind-driven generator is little.
In the present embodiment, described thermal insulation layer 1 uses PVF film to make, and PVF film is polyvinyl fluoride thin film；PVF film has
There are insulating properties, high tenacity, aging resistance and decay resistance, and thickness can be made to the thinnest, to wind-driven generator leaf
The original effect of aerodynamic performance of sheet is little.
In the present embodiment, between described carbon fiber mesh heating layer and blade of wind-driven generator, it is provided with insulated thermal insulating layer 4,
Described insulated thermal insulating layer 4 uses glass fibre to make, it would however also be possible to employ other insulated heat materials of the prior art, all can be real
The existing purpose of the present invention, preferably glass fibre, glassfiber insulation is good, thermostability is strong, corrosion resistance is good, and mechanical strength is high；
Insulated thermal insulating layer 4 is possible to prevent carbon fiber mesh heating layer to cross hot injury's generator blade, if wind-power electricity generation before energising
Having frozen on machine blade, insulated thermal insulating layer 4 can temporarily prevent the cooling damage to blade of wind-driven generator that freezes.
In the present embodiment, the thickness of described thermal insulation layer 1, carbon fiber mesh heating layer 2 and insulated thermal insulating layer 4 increases successively
Greatly；The thickness small profits of thermal insulation layer 1 in heat conduction anti-icing/ice-melt, the thickness thickness of insulated thermal insulating layer 4 desirably prevents carbon fibre web
Lattice heating layer crosses hot injury's generator blade.
In the present embodiment, adopt between described carbon fiber mesh heating layer 2 and described insulated thermal insulating layer 4 and thermal insulation layer 1
Bond by EVA hot-melt adhesive, it would however also be possible to employ other adhesives bond, all can realize the purpose of the present invention；EVA hot-melt adhesive is coagulated
Poly-power is big, and melt surface tension force is little, and hot glue relay is good, and has excellent heat stability, weatherability and electric property, bonding fast
Speed, nonhazardous, pollution-free.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (10)
1. one kind be applicable to blade of wind-driven generator anti-icing/the composite carbon fiber heater element of ice-melt, it is characterised in that: include by
The thermal insulation layer set gradually outside to inside and the carbon fiber mesh heating layer being on blade of wind-driven generator for attaching.
Blade of wind-driven generator the most according to claim 1 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: described carbon fiber mesh heating layer uses 1k filament carbon fibre material to make, and the thickness of carbon fiber mesh heating layer is less than
0.1mm。
Blade of wind-driven generator the most according to claim 2 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: the resistance value of the described every centimetre length of 1k filament carbon fibre is 1.4 Ω, and the mesh-density of described carbon fiber mesh heating layer is
4/cm2, carbon fiber mesh heating layer thermal power density is designed as 1W/cm2。
Blade of wind-driven generator the most according to claim 3 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: described carbon fiber mesh heating layer is through resin cured.
Blade of wind-driven generator the most according to claim 3 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: described grid is square.
Blade of wind-driven generator the most according to claim 1 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: the two ends of described carbon fiber mesh heating layer are provided with conductive electrode, and described conductive electrode is sent out at carbon fiber mesh for plating
Conducting metal on the filament carbon fibre at thermosphere two ends.
Blade of wind-driven generator the most according to claim 1 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: described thermal insulation layer uses PVF film to make.
8. according to the blade of wind-driven generator described in claim 1-7 any claim anti-icing/the composite carbon fiber of ice-melt sends out
Thermal element, it is characterised in that: it is provided with insulated thermal insulating layer between described carbon fiber mesh heating layer and blade of wind-driven generator.
Blade of wind-driven generator the most according to claim 8 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature exists
In: the thickness of described thermal insulation layer, carbon fiber mesh heating layer and insulated thermal insulating layer increases successively.
Blade of wind-driven generator the most according to claim 9 is anti-icing/the composite carbon fiber heater element of ice-melt, and its feature
It is: between described carbon fiber mesh heating layer and described thermal insulation layer and thermal insulation layer, use EVA hot-melt adhesive bonding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040757.9A CN106321372B (en) | 2016-11-23 | 2016-11-23 | Suitable for blade of wind-driven generator it is anti-icing/the compound carbon fiber heater element of ice-melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611040757.9A CN106321372B (en) | 2016-11-23 | 2016-11-23 | Suitable for blade of wind-driven generator it is anti-icing/the compound carbon fiber heater element of ice-melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106321372A true CN106321372A (en) | 2017-01-11 |
| CN106321372B CN106321372B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611040757.9A Active CN106321372B (en) | 2016-11-23 | 2016-11-23 | Suitable for blade of wind-driven generator it is anti-icing/the compound carbon fiber heater element of ice-melt |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882697A (en) * | 2017-11-03 | 2018-04-06 | 索爱菊 | A kind of wind generator set blade anti-icing and deicing system |
| CN108248077A (en) * | 2017-12-04 | 2018-07-06 | 惠阳航空螺旋桨有限责任公司 | A kind of blade deicing heating plate forming method |
| CN108250898A (en) * | 2017-12-18 | 2018-07-06 | 常州二维碳素科技股份有限公司 | A kind of electro-thermal anti-ice and deicing system and preparation method thereof |
| CN112331375A (en) * | 2020-11-23 | 2021-02-05 | 四川玄武岩纤维新材料研究院(创新中心) | Basalt and other fiber honeycomb fabric nuclear shielding composite material and preparation method and application thereof |
| CN114828311A (en) * | 2022-04-06 | 2022-07-29 | 南京航空航天大学 | Laser-assisted preparation method of electric heating grid film suitable for composite material component |
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| CN102213191A (en) * | 2011-05-20 | 2011-10-12 | 叶卫 | Device and method for preventing rotor blade of wind driven generator from freezing |
| CN203035466U (en) * | 2013-01-24 | 2013-07-03 | 长沙理工大学 | Carbon fiber strengthened wind machine blade with deicing and anti-freezing functions |
| US20140151353A1 (en) * | 2011-05-26 | 2014-06-05 | Eads Deutschland Gmbh | Composite Structure Having an Ice Protection Device, and Production Method |
| CN204669629U (en) * | 2015-06-02 | 2015-09-23 | 吉林唯圣能源科技开发有限公司 | A kind of carbon fiber radiant heat source body |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2138871Y (en) * | 1992-11-09 | 1993-07-21 | 梁书文 | Electric heating fibre line |
| CN102213191A (en) * | 2011-05-20 | 2011-10-12 | 叶卫 | Device and method for preventing rotor blade of wind driven generator from freezing |
| US20140151353A1 (en) * | 2011-05-26 | 2014-06-05 | Eads Deutschland Gmbh | Composite Structure Having an Ice Protection Device, and Production Method |
| CN203035466U (en) * | 2013-01-24 | 2013-07-03 | 长沙理工大学 | Carbon fiber strengthened wind machine blade with deicing and anti-freezing functions |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882697A (en) * | 2017-11-03 | 2018-04-06 | 索爱菊 | A kind of wind generator set blade anti-icing and deicing system |
| CN108248077A (en) * | 2017-12-04 | 2018-07-06 | 惠阳航空螺旋桨有限责任公司 | A kind of blade deicing heating plate forming method |
| CN108250898A (en) * | 2017-12-18 | 2018-07-06 | 常州二维碳素科技股份有限公司 | A kind of electro-thermal anti-ice and deicing system and preparation method thereof |
| CN112331375A (en) * | 2020-11-23 | 2021-02-05 | 四川玄武岩纤维新材料研究院(创新中心) | Basalt and other fiber honeycomb fabric nuclear shielding composite material and preparation method and application thereof |
| CN114828311A (en) * | 2022-04-06 | 2022-07-29 | 南京航空航天大学 | Laser-assisted preparation method of electric heating grid film suitable for composite material component |
| CN114828311B (en) * | 2022-04-06 | 2023-02-10 | 南京航空航天大学 | Laser-assisted preparation method of electric heating grid film suitable for composite material component |
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| Publication number | Publication date |
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| CN106321372B (en) | 2019-07-23 |
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