CN202326043U - 2.0 megawatt (MW) carbon fiber wind driven generator blade - Google Patents
2.0 megawatt (MW) carbon fiber wind driven generator blade Download PDFInfo
- Publication number
- CN202326043U CN202326043U CN2011204835238U CN201120483523U CN202326043U CN 202326043 U CN202326043 U CN 202326043U CN 2011204835238 U CN2011204835238 U CN 2011204835238U CN 201120483523 U CN201120483523 U CN 201120483523U CN 202326043 U CN202326043 U CN 202326043U
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- Prior art keywords
- blade
- carbon fiber
- driven generator
- utility
- model
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model provides a 2.0 megawatt (MW) carbon fiber wind driven generator blade, which is manufactured by paving glass fiber cloth which is bonded with a blade die; a carbon fiber main beam and a glass fiber auxiliary beam are laid on two sides at the middle part of a blade shell; cork woods are filled between the carbon fiber main beam and the glass fiber auxiliary beam; and the carbon fiber main beam and the glass fiber auxiliary beam are formed in a double-I structure by using double-shearing web plates. According to the utility model, carbon fiber supplies enough strength, so that the factor that overmuch and over-thick glass fibers is used for laying traditional blades is relieved; the use level of resin in the blade is reduced, and therefore the weight of the blade is reduced by about 2000 Kg; simultaneously the blade without prebending is more convenient to be transported, the aerodynamic efficiency is improved, the maximum value Cpmax can be 0.49, and generated energies are increased; moreover, the rigidity of the blade is large, so that towers are difficult to be collided in operations of the blades, and the safety is higher.
Description
Technical field
The utility model relates to a kind of blade of wind-driven generator, particularly a kind of 2.0MW graphite fiber blade of wind-driven generator.
Background technique
Blade of wind-driven generator is main parts of accepting wind energy, and its good design, reliable quality and superior performance are the determinant factors that guarantees the operation of generator set normal and stable.
Present commercial large fan blade adopts the fiber glass reinforcement manufacturing mostly, and it mainly is glass fiber reinforced polyester resin and glass fiber reinforced epoxy resin.But glass fibre density is bigger, and along with the continuous development of high-power generator group, the overweight problem of glass fibre fan blade becomes the bottleneck of wind-power electricity generation industry.
Blade also is the highest parts of cost in the blower fan, though its weight is less than 15% of blower fan weight.Fan blade is similar to aerial blade, require to improve to promote ratio, and its lifting characteristic is not subject to, and blade surface pollutes and the roughness influence.Consider to require blade that thicker blade profile is arranged from structure.Blade will stand to use in 20 years, reaches 10 with the times of fatigue that caused by wind-force
8(also have with 5,000,000 times and make standard).Along with the increase of power of fan, the also corresponding increase of fan blade size.Under this background, exploitation can reduce weight, again can proof strength and the new blade of rigidity, become the focus of research in the industry.The application of graphite fiber in large-scale blade become a kind of unmodifiable trend.At present, each big blade manufacturers of the whole world is furtherd investigate from each side such as raw material, process engineering, quality controls, in the hope of reducing cost, makes graphite fiber can on wind-power electricity generation, obtain more applications.
The model utility content
In order to overcome the technical problem that exists in the existing technology, the utility model provides a kind of 2.0MW graphite fiber blade of wind-driven generator, reduces weight, simultaneously again can proof strength and rigidity.
To achieve these goals, the utility model provides following technological scheme:
A kind of 2.0MW graphite fiber blade of wind-driven generator; Said blade is laid by the glass fiber cloth of applying blade mold and is formed; Both sides lay in the middle of the blade shell has graphite fiber girder and the auxilliary beam of glass fibre; Fill cork wood between the auxilliary beam of said graphite fiber girder and glass fibre, the auxilliary beam of graphite fiber girder and glass fibre adopts the double-shear web to form duplexing word structure.
Further, said length of blade is 39.15m.
The beneficial effect that the utility model brings is:
The too much blocked up factor of glass fibre had reduced the consumption of resin in the blade when the enough intensity that 1, provides owing to graphite fiber had alleviated traditional blades shop layer, thereby can the about 2000Kg of weight reduction;
2, blade does not have pre-bending, and more convenient transportation has improved pneumatic efficiency, and the Cpmax maximum value can reach 0.49, has increased generated energy;
3, because blade stiffness is big, be difficult for collision tower tube during the blade operation, Security is higher.
Description of drawings
Fig. 1 the utility model cross section structure schematic representation
A-A structural representation among Fig. 2 Fig. 1
Label is among the figure:
1-graphite fiber girder 2-glass fibre is assisted beam 3-cork wood 4-double-shear web
Embodiment
Following facing combines accompanying drawing that the preferred embodiment of the utility model is done to set forth in detail, thereby so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that the protection domain of the utility model made more explicit defining.
As shown in Figure 1; A kind of schematic cross-section of 2.0MW graphite fiber blade of wind-driven generator; Said blade is laid by the glass fiber cloth of applying blade mold and is formed, and both sides lay graphite fiber girder 1 in the middle of blade shell and the auxilliary beam 2 of glass fibre are paved with cork wood 3 fillings between girder and the auxilliary beam; After covering the whole blade housing with glass fiber cloth afterwards, utilize vacuum infusion resin to process blade half.After treating that blade Procuring in mould is accomplished; The graphite fiber girder 1 that prefabricated profiled double-shear web 4 usefulness adhesives is separately fixed at SS (suction side is translated into suction surface) face blade shell is assisted on the beam 2 with glass fibre; And PS (pressure side is translated into pressure side) face blade shell upset is combined on the SS face; The two ends of double-shear web 4 are separately fixed on the graphite fiber girder 1 and the auxilliary beam 2 of glass fibre of PS/SS face, as shown in Figure 2.The maximum chord length of the described graphite fiber blade of the utility model embodiment is 3.2 meters.
Said performance of products of present embodiment and technical order are following:
Length of blade: 39.15m; Leaf weight: 5900 ± 50Kg;
Incision wind speed: 2.5m/s; Cut-out wind speed: 25.0m/s;
Rated wind speed: 12.5m/s; Extreme wind speeds: 59.5m/s;
Rotor diameter: 80m; Leaf longevity: 20 years;
Be suitable for wind scale: IEC II; Power coefficient: 0.48.
The above; Be merely one of embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the utility model disclosed, and variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claims were limited.
Claims (2)
1. 2.0MW graphite fiber blade of wind-driven generator; It is characterized in that; Said blade is laid by the glass fiber cloth of applying blade mold and is formed; Both sides lay in the middle of the blade shell has graphite fiber girder and the auxilliary beam of glass fibre, fills cork wood between the auxilliary beam of said graphite fiber girder and glass fibre, and the auxilliary beam of graphite fiber girder and glass fibre adopts the double-shear web to form duplexing word structure.
2. a kind of 2.0MW graphite fiber blade of wind-driven generator according to claim 1 is characterized in that said length of blade is 39.15m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204835238U CN202326043U (en) | 2011-11-29 | 2011-11-29 | 2.0 megawatt (MW) carbon fiber wind driven generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204835238U CN202326043U (en) | 2011-11-29 | 2011-11-29 | 2.0 megawatt (MW) carbon fiber wind driven generator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326043U true CN202326043U (en) | 2012-07-11 |
Family
ID=46438025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204835238U Expired - Fee Related CN202326043U (en) | 2011-11-29 | 2011-11-29 | 2.0 megawatt (MW) carbon fiber wind driven generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415282A (en) * | 2017-05-26 | 2017-12-01 | 北京金风科创风电设备有限公司 | I-shaped web for blade, die and manufacturing method |
-
2011
- 2011-11-29 CN CN2011204835238U patent/CN202326043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415282A (en) * | 2017-05-26 | 2017-12-01 | 北京金风科创风电设备有限公司 | I-shaped web for blade, die and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |