CN107061192B - A kind of low-noise high-efficiency wind blade - Google Patents
A kind of low-noise high-efficiency wind blade Download PDFInfo
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- CN107061192B CN107061192B CN201710327568.8A CN201710327568A CN107061192B CN 107061192 B CN107061192 B CN 107061192B CN 201710327568 A CN201710327568 A CN 201710327568A CN 107061192 B CN107061192 B CN 107061192B
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- 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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- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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Abstract
The present invention relates to a kind of low-noise high-efficiency wind blades, including blade root, span portion, leaf tip and noise-reducing components and wind guide component.By the way that the noise-reducing components that blade two sides are arranged in are carried out with the reasonable set of distribution and form, cooperate the reasonable set of wind guide component, so that the wind blade noise is greatly lowered.And by reasonable set wind guide component, so that wind power utilization efficiency gets a promotion, and avoids blade and rotate probability that is too fast and causing shutdown event to occur.
Description
Technical field
The invention belongs to wind-power electricity generations and Material Field, and in particular to a kind of low-noise high-efficiency wind blade.
Background technique
Although the wind-power electricity generation of China has certain slowdown in growth due to transmission etc. in recent years, by
Acquired very superior in this clean energy resource, with the further development of transmission technology and policy, wind-power electricity generation will can be by
The generation modes such as the substitution thermal power generation even nuclear power of step.
In all parts of wind-power electricity generation, wind blade is vital component, is both vulnerable part and comparison is difficult applies
The component of work.And the noise problem of wind blade promotes it and brings very big negative effect, also has to it in the prior art
Noise reduction did some researchs, but was all extensive.Wherein have and blade side be provided with the objects such as hairbrush to carry out noise reduction,
But its research be not much go deep into degree, so if in such a manner arbitrarily setting blade, not only noise reduction stablize
Property it is very uncertain, and be easy the aerodynamics contrary with blade and reduce blade rotational efficienty, to influence power generation effect
Rate.
How to improve the rotational efficienty of blade during noise reduction is also very important aspect in Research of Noise Reduction, and is showed
Have in technology without finding such research contents.And if blade velocity of rotation is more than the threshold value of its limit, instead can
The accelerated wear test of the associated components such as bearing is caused, it is serious to will cause shutdown event, therefore in the case where improving efficiency, how
The generation for avoiding exceeding threshold value rotation situation is also the aspect for needing to further investigate.
Summary of the invention
Of the invention proposes a kind of low-noise high-efficiency wind blade.
It is realized by following technological means:
A kind of low-noise high-efficiency wind blade, including blade root, span portion, leaf tip and noise-reducing components and wind guide component.
The blade root is located at the root of entire wind blade, at the blade root fastenings of root and the impeller of wind-driven generator
Wheel hub connection, entire wind blade is fixed on impeller hub.
Between blade root and leaf tip, width is gradually increased from blade root position, is then extend in the span portion
It is gradually reduced after leaf tip, and the internal air-guiding aisle communicated for the hollow formation in part with leaf tip.
The leaf tip is provided with the air outlet of air-guiding aisle in one end of tip.
The noise-reducing components are made of thin rubber strip, including blade root noise-reducing components, span portion noise-reducing components, leaf tip
Noise-reducing components and bottom end noise-reducing components, the blade root noise-reducing components, span portion noise-reducing components and bottom end noise-reducing components are list
To angularly disposed thin rubber strip, the leaf tip noise-reducing components are bidirectional crossed angularly disposed thin rubber strip, and wind-force
The connection surface of blade is arranged in non-perpendicular angle；The density of the blade root noise-reducing components: span portion noise-reducing components
Density: the density of the leaf tip noise-reducing components: the density of the bottom end noise-reducing components be 1:(1.5 ~ 2): (3 ~ 8): (0.6 ~
0.8), the density refers to the quantity of the thin rubber strip setting in unit length.The length of the leaf tip noise-reducing components is
1.2 ~ 1.8 times of span portion noise-reducing components.
The wind guide component includes the first air intake vent and the second air intake vent that span portion middle and lower part is arranged in, Yi Jishe
The air-guiding aisle in span portion internal stretch to leaf tip is set, the air-guiding aisle is opened from span portion close to one end of blade root
Begin, hollow area gradually extends inside span portion and expands, and extends to inside leaf tip, and finally extend to the tip of leaf tip
Air outlet is formed, at the air outlet, the cross-section area ratio of hollow area and solid area is (0.8 ~ 1.0): 1.
The surface of the low-noise high-efficiency wind blade and the surface of the wind guide component are provided with compound carbon fiber layer, institute
It states compound carbon fiber layer and is followed successively by surface strengthening layer, filament carbon fibre layer and insulated thermal insulating layer, the long filament carbon fiber from outside to inside
Multiple copper sheets are arranged at intervals in dimension layer.
Preferably, the connection surface of the blade root noise-reducing components and wind blade is arranged in 30 ~ 39 ° of angle.
Preferably, the connection surface of span portion noise-reducing components and wind blade is arranged in 45 ~ 52 ° of angle.
Preferably, the connection surface of the leaf tip noise-reducing components and wind blade in 38 ~ 43 ° angle setting and
320 ~ 335 ° (two-way and out of plumb).
Preferably, the connection surface of the bottom end noise-reducing components and wind blade is arranged in 80 ~ 88 ° of angle.
Preferably, first air intake vent and the second air intake vent are mutually inclined setting.
Preferably, the angle that first air intake vent and the second air intake vent are mutually inclined is 15 ~ 22 °.
Preferably, the filament carbon fibre layer with a thickness of 0.05 ~ 0.08mm.
Preferably, the surface strengthening layer is polyvinyl fluoride thin layer, the insulated thermal insulating layer is glass fibre.
Preferably, the thin rubber strip is the high-strength rubber item that diameter is 2 ~ 3mm.The material of the high-strength rubber item
Matter is ethylene-propylene diene copolymer EPDM.
Effect of the invention is that:
1, by the way that position, different densities set-up mode, different angle set-up mode and different length is arranged to noise-reducing components
The setting of set-up mode, optimizes the most so that noise reduction effect reaches.Noise-reducing components are set as rubber strip, and root is embedded into blade
In surface, swirl gas after gas flows through, can be separated into more tiny vortex by firm affixed, open top end, from
And realize noise reduction.By being provided with more dispersed noise-reducing components in tail portion, when the swirl gas to fall off from blade is flow to
After at this, dispersed at this, but with the rotation of blade, these vortex are with blades flows, by being arranged in span portion
Finer and closely woven noise-reducing components, so that these vortex are broken up again, thus further noise reduction.And due to the sky at blade tip position
The aerodynamics type of flow is complex, in terms of current research is still in simulation and experience, by the way that two-way specific angle is arranged
The noise-reducing components of degree, so that its mode for being more in line with aerodynamic flow, so that the vibration at this is i.e. maximum after generating
That changes cancels out each other, to realize noise reduction.Noise-reducing components are also equipped in bottom end, by the setting of noise-reducing components at this, more
The noise reduction effect of optimized top end achievees the effect that whole noise reduction optimizes.
2, by two air intake vents of setting, the air-guiding aisle of air outlet, so that being improved when wind-force is not exceeded
Blade rotational power, and compared with strong wind, it is appropriate to hinder blade high-speed rotation, so as to avoid the hair of shutdown event
It is raw.Air-guiding aisle is extended downwardly since the position that root of blade connects with span portion from surface, and space gradually increases, and first
Air intake vent is arranged at this, and mainly with blade outer surface making contact, band movable vane piece rotates the gas of flowing, but opposite lacks
The wind of amount enters in air-guiding aisle from the first air intake vent, and in air-guiding aisle is the setting of continuously smooth being gradually increased, gas
Into in air-guiding aisle, collided when flowing out, and enter in air-guiding aisle from air outlet along air-guiding aisle with conduit wall
To which the gas that original collides with inlet air open area collide with entire air-guiding aisle wall, to increase longitudinal impact face
Product, more fully utilizes so as to have to kinetic energy, to increase blade rotational efficienty.Second air intake vent is not in wind-force
It can be entered the wind as the supplement of the first air intake vent when king-sized, when wind-force is very big, air pressure increases in air-guiding aisle
Greatly, the second air intake vent, which can be used as air outlet, (since angle is different from the first air intake vent, can realize air pressure inside and release
Pressure effect), local eddy currents are formed at the air intake vent position after the outside of the second air intake vent and foreign gas stream form collision, from
And the collision that gas and inner wall (the especially inner wall of inlet air face side) are formed in air-guiding aisle all directions is further formed
Vortex reduces the energy source of blade rotation in the case where wind-force is exceeded so as to form reversed kinetic energy conversion, so as to
The too fast revolving speed of damage to avoid to(for) components such as bearings.
3, by the way that compound carbon fiber layer is arranged, and sheet metal is set so that by after being powered to compound carbon fiber layer into
Row accumulation of heat, temperature is slightly lower or air in humidity it is larger when can prevent from freezing on blade and especially in air-guiding aisle
The generation of situation, so as to avoid leaf weight increase and cause the waste of energy, more avoid the blade that may cause
The generation of then damaged condition is cracked too early.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of low-noise high-efficiency wind blade of the present invention.
Fig. 2 is the structural schematic diagram of another visual angle section view of low-noise high-efficiency wind blade of the present invention.
Wherein: 1- blade root, at 11- blade root fastenings, 12- blade root noise-reducing components, 2- span portion, the first air intake vent of 21-,
The second air intake vent of 22-, 23- span portion noise-reducing components, 3- leaf tip, 31- air outlet, 32- leaf tip noise-reducing components, the bottom end 33-
Noise-reducing components, 34- air-guiding aisle solid parts, 35- air-guiding aisle hollow component.
Specific embodiment
Embodiment 1
As shown in Figure 1,
A kind of low-noise high-efficiency wind blade, including blade root, span portion, leaf tip and noise-reducing components and wind guide component.
The blade root is located at the root of entire wind blade, at the blade root fastenings of root and the impeller of wind-driven generator
Wheel hub connection, entire wind blade is fixed on impeller hub.
Between blade root and leaf tip, width is gradually increased from blade root position, is then extend in the span portion
It is gradually reduced after leaf tip, and the internal air-guiding aisle communicated for the hollow formation in part with leaf tip.
The leaf tip is provided with the air outlet of air-guiding aisle in one end of tip.
The noise-reducing components are made of thin rubber strip, including blade root noise-reducing components, span portion noise-reducing components, leaf tip
Noise-reducing components and bottom end noise-reducing components, the blade root noise-reducing components, span portion noise-reducing components and bottom end noise-reducing components are list
To angularly disposed thin rubber strip, the leaf tip noise-reducing components are bidirectional crossed angularly disposed thin rubber strip, and wind-force
The connection surface of blade is arranged in non-perpendicular angle.
The thin rubber strip is the high-strength rubber item (or being rubber thread or rubber bar) that diameter is 2 ~ 3mm.The height
The material of intensity rubber strip is ethylene-propylene diene copolymer EPDM, and commercially available founding again, rubber strip one end is embedded in blade surface and carries out
It is fixed.
The density of the blade root noise-reducing components: the density of span portion noise-reducing components: the leaf tip noise-reducing components
Density: the density of the bottom end noise-reducing components is 1:1.6:5:0.62, and the density refers to the thin rubber in unit length
The quantity of item setting.
The length of the leaf tip noise-reducing components is 1.35 times of span portion noise-reducing components.
The connection surface of the blade root noise-reducing components and wind blade is arranged in 32 ° of angle.
The connection surface of span portion noise-reducing components and wind blade is arranged in 46 ~ 48 ° of angle (due to the part leaf
Piece surface is that therefore angle is not unique for irregular curved surface, therefore angle part is 46 °, is partially 46.5 °, is partially 48 °).
The connection surface of the leaf tip noise-reducing components and wind blade is arranged in 39 ° of angle and another direction is
325°。
The connection surface of the bottom end noise-reducing components and wind blade is arranged in 82 ° of angle.
The wind guide component includes the first air intake vent and the second air intake vent that span portion middle and lower part is arranged in, Yi Jishe
The air-guiding aisle in span portion internal stretch to leaf tip is set, the air-guiding aisle is opened from span portion close to one end of blade root
Begin, hollow area gradually extends inside span portion and expands, and extends to inside leaf tip, and finally extend to the tip of leaf tip
Air outlet is formed, at the air outlet, the cross-section area ratio of hollow area and solid area is 0.85:1.
First air intake vent and the second air intake vent are mutually inclined setting.First air intake vent and the second air intake vent are mutual
Inclined angle is 15 ~ 22 °.
And it is 35 ° that first air intake vent is angled with axis of runner blade institute.
The surface of the low-noise high-efficiency wind blade and the surface of the wind guide component are provided with compound carbon fiber layer, institute
It states compound carbon fiber layer and is followed successively by surface strengthening layer, filament carbon fibre layer and insulated thermal insulating layer, the long filament carbon fiber from outside to inside
Multiple copper sheets are arranged at intervals in dimension layer.
The copper sheet can be powered, so that carbon fiber layer can store heat, thus energy when cold snap
Enough remove the ice sheet of blade surface.
The filament carbon fibre layer with a thickness of 0.06mm.
The surface strengthening layer is polyvinyl fluoride thin layer, and the insulated thermal insulating layer is glass fibre.
Comparative example 1
Other settings of this comparative example are same as Example 1, the difference is that noise-reducing components are not provided with, by same
Under the conditions of, air blast 3 hours, the ratio of the noise decibels of the noise decibel and embodiment 1 of this comparative example was 3.8:1.
Embodiment 2
It is as depicted in figs. 1 and 2: a kind of low-noise high-efficiency wind blade, including blade root, span portion, leaf tip and noise reduction
Component and wind guide component.
The blade root is located at the root of entire wind blade, at the blade root fastenings of root and the impeller of wind-driven generator
Wheel hub connection, entire wind blade is fixed on impeller hub.
Between blade root and leaf tip, width is gradually increased from blade root position, is then extend in the span portion
It is gradually reduced after leaf tip, and the internal air-guiding aisle communicated for the hollow formation in part with leaf tip.
The leaf tip is provided with the air outlet of air-guiding aisle in one end of tip.
The noise-reducing components are made of thin rubber strip, including blade root noise-reducing components, span portion noise-reducing components, leaf tip
Noise-reducing components and bottom end noise-reducing components, the blade root noise-reducing components, span portion noise-reducing components and bottom end noise-reducing components are list
To angularly disposed thin rubber strip, the leaf tip noise-reducing components are bidirectional crossed angularly disposed thin rubber strip, and wind-force
The connection surface of blade is arranged in non-perpendicular angle；The density of the blade root noise-reducing components: span portion noise-reducing components
Density: the density of the leaf tip noise-reducing components: the density of the bottom end noise-reducing components be 1:1.8:5:0.65, the density
Refer to the quantity of the thin rubber strip setting in unit length.The length of the leaf tip noise-reducing components is span portion noise reduction
1.5 times of component.
The thin rubber strip is the high-strength rubber item that diameter is 2.6mm.The material of the high-strength rubber item is ternary
The third glue of second EPDM.
The connection surface of the blade root noise-reducing components and wind blade is arranged in 36 ° of angle.
The connection surface of span portion noise-reducing components and wind blade is arranged in 48 ~ 50 ° of angle.
The connection surface of the leaf tip noise-reducing components and wind blade is in 41 ° of angle setting and 330 ° (two-way).
The connection surface of the bottom end noise-reducing components and wind blade is arranged in 85 ° of angle.
The wind guide component includes the first air intake vent and the second air intake vent that span portion middle and lower part is arranged in, Yi Jishe
The air-guiding aisle in span portion internal stretch to leaf tip is set, the air-guiding aisle is opened from span portion close to one end of blade root
Begin, hollow area gradually extends inside span portion and expands, and extends to inside leaf tip, and finally extend to the tip of leaf tip
Air outlet is formed, at the air outlet, the cross-section area ratio of hollow area and solid area is 0.95:1.
First air intake vent and the second air intake vent are mutually inclined setting.And first air intake vent and the second air intake vent phase
Mutual inclined angle is 19 °.
The surface of the low-noise high-efficiency wind blade and the surface of the wind guide component are provided with compound carbon fiber layer, institute
It states compound carbon fiber layer and is followed successively by surface strengthening layer, filament carbon fibre layer and insulated thermal insulating layer, the long filament carbon fiber from outside to inside
Multiple copper sheets are arranged at intervals in dimension layer.
The filament carbon fibre layer with a thickness of 0.068mm.
The surface strengthening layer is polyvinyl fluoride thin layer, and the insulated thermal insulating layer is glass fibre.
Comparative example 2
Other set-up modes of this comparative example are same as Example 2, the difference is that being not provided with wind guide component, pass through 3
Air blast is tested under hour the same terms, and the ratio of the 2 blade turnning circle of blade turnning circle and embodiment of this comparative example is 1:
1.21。
Comparative example 2 '
Other set-up modes of this comparative example are same as Example 2, the difference is that being not provided with second in wind guide component
Air intake vent is tested by the high velocity wind amount air blast of 3 hours the same terms, the blade turnning circle and embodiment 2 of this comparative example
The ratio of blade turnning circle is 1:0.88.And bearing wear thickness 0.12mms more than 2 compared with embodiment.
Embodiment 3
A kind of low-noise high-efficiency wind blade, including blade root, span portion, leaf tip and noise-reducing components and wind guide component.
The blade root is located at the root of entire wind blade, at the blade root fastenings of root and the impeller of wind-driven generator
Wheel hub connection, entire wind blade is fixed on impeller hub.
Between blade root and leaf tip, width is gradually increased from blade root position, is then extend in the span portion
It is gradually reduced after leaf tip, and the internal air-guiding aisle communicated for the hollow formation in part with leaf tip.
The leaf tip is provided with the air outlet of air-guiding aisle in one end of tip.
The noise-reducing components are made of thin rubber strip, including blade root noise-reducing components, span portion noise-reducing components, leaf tip
Noise-reducing components and bottom end noise-reducing components, the blade root noise-reducing components, span portion noise-reducing components and bottom end noise-reducing components are list
To angularly disposed thin rubber strip, the leaf tip noise-reducing components are bidirectional crossed angularly disposed thin rubber strip, and wind-force
The connection surface of blade is arranged in non-perpendicular angle；The density of the blade root noise-reducing components: span portion noise-reducing components
Density: the density of the leaf tip noise-reducing components: the density of the bottom end noise-reducing components be 1:1.9:6.8:0.69, it is described close
Degree refers to the quantity of the thin rubber strip setting in unit length.The length of the leaf tip noise-reducing components is the span portion drop
It makes an uproar 1.6 times of component.
The thin rubber strip is the high-strength rubber item that diameter is 2.8mm.The material of the high-strength rubber item is ternary
The third glue of second EPDM.
The connection surface of the blade root noise-reducing components and wind blade is arranged in 38 ° of angle.
In 50 ~ 51 ° of angle setting, (angle part is the connection surface of span portion noise-reducing components and wind blade
50 °, be partially 51 °).
The connection surface of the leaf tip noise-reducing components and wind blade is in 42 ° of angle setting and 332 ° (two-way).
The connection surface of the bottom end noise-reducing components and wind blade is arranged in 86 ° of angle.
The wind guide component includes the first air intake vent and the second air intake vent that span portion middle and lower part is arranged in, Yi Jishe
The air-guiding aisle in span portion internal stretch to leaf tip is set, the air-guiding aisle is opened from span portion close to one end of blade root
Begin, hollow area gradually extends inside span portion and expands, and extends to inside leaf tip, and finally extend to the tip of leaf tip
Air outlet is formed, at the air outlet, the cross-section area ratio of hollow area and solid area is 0.98:1.
First air intake vent and the second air intake vent are mutually inclined setting.
The angle that first air intake vent and the second air intake vent are mutually inclined is 21 °.
The surface of the low-noise high-efficiency wind blade and the surface of the wind guide component are provided with compound carbon fiber layer, institute
It states compound carbon fiber layer and is followed successively by surface strengthening layer, filament carbon fibre layer and insulated thermal insulating layer, the long filament carbon fiber from outside to inside
Multiple copper sheets are arranged at intervals in dimension layer.
The filament carbon fibre layer with a thickness of 0.061mm.
The surface strengthening layer is polyvinyl fluoride thin layer, and the insulated thermal insulating layer is glass fibre.
Comparative example 3
Other set-up modes of this comparative example are same as Example 3, the difference is that in wind guide component the first air intake vent and
The identical setting (i.e. axis is parallel) of second air intake vent angle, and be not provided with compound carbon fiber layer passes through 3 hours the same terms
High velocity wind amount air blast experiment (blowing water mist in interval in wind), the blade turnning circle and 3 blade of embodiment of this comparative example rotate
The ratio for enclosing number is 1:0.93.And there is part to have relatively thin ice sheet in this comparative example channel, and embodiment 3 does not have.
Claims (6)
1. a kind of low-noise high-efficiency wind blade, which is characterized in that including blade root, span portion, leaf tip and noise-reducing components and
Wind guide component；
The blade root is located at the root of entire wind blade, at the blade root fastenings of root and the impeller hub of wind-driven generator
Connection, entire wind blade is fixed on impeller hub；
Between blade root and leaf tip, width is gradually increased from blade root position, is then extend to leaf in the span portion
It is gradually reduced behind tip, and the internal air-guiding aisle communicated for the hollow formation in part with leaf tip；
The leaf tip is provided with the air outlet of air-guiding aisle in one end of tip；
The noise-reducing components are made of thin rubber strip, including blade root noise-reducing components, span portion noise-reducing components, leaf tip noise reduction
Component and bottom end noise-reducing components, the blade root noise-reducing components, span portion noise-reducing components and bottom end noise-reducing components are single syncline
To the thin rubber strip of setting, the leaf tip noise-reducing components are bidirectional crossed angularly disposed thin rubber strip, and wind blade
Connection surface be arranged in non-perpendicular angle；The density of the blade root noise-reducing components: span portion noise-reducing components it is close
Degree: the density of the leaf tip noise-reducing components: the density of the bottom end noise-reducing components is 1:(1.5 ~ 2): (3 ~ 8): (0.6 ~
0.8), the density refers to the quantity of the thin rubber strip setting in blade surface unit length；The leaf tip noise-reducing components
Length be 1.2 ~ 1.8 times of span portion noise-reducing components；
The wind guide component includes the first air intake vent and the second air intake vent that span portion middle and lower part is arranged in, and setting exists
Span portion internal stretch is to the air-guiding aisle of leaf tip, and the air-guiding aisle is since span portion is close to one end of blade root, sky
Heart district domain gradually extends inside span portion and expands, and extends to inside leaf tip, and the tip for finally extending to leaf tip is formed
Air outlet, at the air outlet, the cross-section area ratio of hollow area and solid area is (0.8 ~ 1.0): 1；
The surface of the low-noise high-efficiency wind blade and the surface of the wind guide component are provided with compound carbon fiber layer, described multiple
It closes carbon fiber layer and is followed successively by surface strengthening layer, filament carbon fibre layer and insulated thermal insulating layer, the filament carbon fibre layer from outside to inside
In be arranged at intervals with multiple copper sheets；
The connection surface of the blade root noise-reducing components and wind blade is arranged in 30 ~ 39 ° of angle；
The connection surface of span portion noise-reducing components and wind blade is arranged in 45 ~ 52 ° of angle；
The connection surface of the bottom end noise-reducing components and wind blade is arranged in 80 ~ 88 ° of angle；
The filament carbon fibre layer with a thickness of 0.05 ~ 0.08mm.
2. low-noise high-efficiency wind blade according to claim 1, which is characterized in that the leaf tip noise-reducing components and wind-force
The connection surface of blade is arranged in 38 ~ 43 ° of angle setting and 320 ~ 335 ° of angle.
3. low-noise high-efficiency wind blade according to claim 1, which is characterized in that first air intake vent and the second inlet air
Mouth is mutually inclined setting.
4. low-noise high-efficiency wind blade according to claim 3, which is characterized in that first air intake vent and the second inlet air
The angle that mouth is mutually inclined is 15 ~ 22 °.
5. low-noise high-efficiency wind blade according to claim 1-4, which is characterized in that the surface strengthening layer is
Polyvinyl fluoride thin layer, the insulated thermal insulating layer are glass fibre.
6. low-noise high-efficiency wind blade according to claim 1-4, which is characterized in that the thin rubber strip is straight
Diameter is the high-strength rubber item of 2 ~ 3mm.
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| CN201710327568.8A CN107061192B (en) | 2017-05-11 | 2017-05-11 | A kind of low-noise high-efficiency wind blade |
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| CN108150346B (en) * | 2018-02-27 | 2019-06-14 | 湖南创一新材料有限公司 | A kind of anti-icing noise reduction wind electricity blade |
| CN117231413B (en) * | 2023-11-02 | 2024-08-02 | 内蒙古工业大学 | Fan blade of wind driven generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461226U (en) * | 2009-08-05 | 2010-05-12 | 中国科学院工程热物理研究所 | Vane |
| KR20130090937A (en) * | 2012-02-07 | 2013-08-16 | 서울대학교산학협력단 | Attached-type flexible serrated trailing edge for wind turbine noise reduction |
| CN105804955A (en) * | 2016-03-11 | 2016-07-27 | 北京金风科创风电设备有限公司 | Blade for wind generating set and wind generating set |
| CN106481517A (en) * | 2016-12-19 | 2017-03-08 | 北京金风科创风电设备有限公司 | Wind power generation blade and wind generating set with same |
-
2017
- 2017-05-11 CN CN201710327568.8A patent/CN107061192B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461226U (en) * | 2009-08-05 | 2010-05-12 | 中国科学院工程热物理研究所 | Vane |
| KR20130090937A (en) * | 2012-02-07 | 2013-08-16 | 서울대학교산학협력단 | Attached-type flexible serrated trailing edge for wind turbine noise reduction |
| CN105804955A (en) * | 2016-03-11 | 2016-07-27 | 北京金风科创风电设备有限公司 | Blade for wind generating set and wind generating set |
| CN106481517A (en) * | 2016-12-19 | 2017-03-08 | 北京金风科创风电设备有限公司 | Wind power generation blade and wind generating set with same |
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| CN107061192A (en) | 2017-08-18 |
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