CN102410137A - Novel wind power generator blade - Google Patents
Novel wind power generator blade Download PDFInfo
- Publication number
- CN102410137A CN102410137A CN 201110449904 CN201110449904A CN102410137A CN 102410137 A CN102410137 A CN 102410137A CN 201110449904 CN201110449904 CN 201110449904 CN 201110449904 A CN201110449904 A CN 201110449904A CN 102410137 A CN102410137 A CN 102410137A
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- blade
- wind
- aerofoil
- column
- wind turbine
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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 invention relates to a novel wind power generator blade. Horizontal axis wind turbine blades drive a generator to run through a lifting force of wind, while vertical axis wind turbine blades are resistant axis wind turbine blades and few of the vertical axis wind turbine blades are boosting vertical axis wind turbine blades; generally, a vertical axis wind turbine is driven by force difference between two sides of the rotating shaft, so that the wind power converting efficiency of the blades can be improved by increasing the force difference between the blades and the rotating shaft to the maximum extent; and on the basis of the idea, a novel blade structure which uses the force difference to push the blades to rotate is provided.
Description
Technical field
The present invention designs wind power generation field, relates in particular to a kind of structure of novel wind generator blade.
Background technique
Serious day by day along with the world energy sources crisis, renewable energy sources more and more receives the attention of national governments.At present, China is just greatly developing offshore wind farm, and high-power wind-driven generator such as 3MW appears 1,1.5, in wind-powered electricity generation industry forward large scale development in succession.More domestic strong companies have begun to research and develop 5,6 MW units.Megawatt wind-power blade generally is horizontal axis, lift-type, adopt the vertical axis wind electric blade then seldom.The form structure of horizontal axis blade need possess air dynamic behaviour, and the surface property of structure is had relatively high expectations.Its wind-power generating system guiding device of need going off course.Vertical axis windmill does not then need yaw system, has certain advantage.The typical structure of vertical shaft blade has: S shape wind power generation blade, Dari eritrea type blower fan, Magnus effect wind wheel, H shape blade of wind-driven generator etc.
Summary of the invention
The novel wind generator blade belongs to assembly parts, so its anti-fatigue ability is not strong, wear no resistance, and noise is relatively large.Can stick with paste bound edge through hand and strengthen the weakness that structure is improved article combination, increase the noise abatement facility.Prevent that noise is excessive.
For achieving the above object; The present invention provides a kind of blade of wind-driven generator; The member of novel wind generator blade is rod member and plate etc., combines then, convenient like this manufacturing and transportation; Modern wind generator blade great majority adopt glass fibre reinforced plastic material, and preparation process adopts hand pasting forming or vacuum infusion molding technology.And these two kinds of technological forming speed are slower, and quality is unstable.The novel wind generator blade can adopt Wrapping formed and die press technology for forming, and the shaping speed of these technologies and the mass stability of finished product are better than other technology.
The present invention has following technique effect: the novel wind generator blade is fit to make middle-size and small-size wind power plant, especially more preponderates in the few place of wind resource, and it is not high to material performance requirement.Also can be used on the large-scale wind driven generator; But the structural strength and the noise abatement facility that need to add the girder number or increase material are such as pasting rubbery foam or set up little spring in the contacting point of column and aerofoil, to reduce noise; Can also make the cross section of girder and have air dynamic behaviour; Make it in rotating process, produce lift, alleviating the pressure of blade countershaft, thereby alleviate the frictional force between member.
Description of drawings
Fig. 1 is the structural representation of a kind of novel wind generator blade according to the invention.
Fig. 2 is a wind energy conversion system rotating power principle schematic.
Embodiment
To combine 2 couples of the present invention of accompanying drawing to further specify below.
Suppose that the wind that blows on the blade from unlimited distance is Parallel airflow, see that the aerofoil of left side blade is not blocked by vertical column or other settings from Fig. 2; Aerofoil rotates with the wind, and wind passes through from the gap between aerofoil, and blade forwards when the right to; Aerofoil rotates under the effect of wind-force, and the gap that connects like this between the column (like Fig. 2) of aerofoil is sealed, and wind can not pass through; The wind-force that the blade on rotating shaft the right receives is much larger than the wind-force on the left side; It is poor to produce power, and the power difference promotes rotating shaft and rotates, and drives generator for electricity generation.Blade is crossed in wind, and initial speed is V0, and the speed of blowing over behind the blade is Vt.By principle of conservation of energy, the value of V0-Vt is big more, and the energy of blade conversion is just big more, and efficient is also just high more.Therefore the specified rotational velocity of blade is more little, and the efficient of transformation of energy is just high more so.Want the conversion efficiency height, the big speed increaser of velocity ratio just must be arranged, obtain the rotating speed that can order about generator for electricity generation.
Claims (3)
1. a novel wind generator blade is as shown in Figure 1, and the structure of V font is called girder in the middle of the blade, is the main stressed member of blade.The bar that on it, is vertically connecting is called column, and column is fixed on above the crossbeam.And being connected with the aerofoil that can rotate around it above the column, the aerofoil rotation angle is less than 90 °.Angle of swing that outstanding shell fragment jump ring forces aerofoil can be installed less than 90 ° on column, can also between aerofoil and its another corresponding column, couple together with cord, this also can force the aerofoil angle of swing less than 90 °
2. blade of wind-driven generator as claimed in claim 1 is characterized in that: compare with other vertical shaft blades, the torque difference that the novel wind motor blade obtains is bigger than other, and promptly efficient is high
3. blade of wind-driven generator as claimed in claim 1; It is characterized in that: have the aerodynamics aerofoil profile because the vertical rod of novel wind generator blade can be made; Can utilize the resistance and the lift effect of wind simultaneously, this also is that other blade of vertical axis wind turbine are beyond one's reach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110449904 CN102410137A (en) | 2011-12-19 | 2011-12-19 | Novel wind power generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110449904 CN102410137A (en) | 2011-12-19 | 2011-12-19 | Novel wind power generator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410137A true CN102410137A (en) | 2012-04-11 |
Family
ID=45912422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110449904 Pending CN102410137A (en) | 2011-12-19 | 2011-12-19 | Novel wind power generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822937A (en) * | 2019-03-25 | 2019-05-31 | 上海电气风电集团有限公司 | It is a kind of to prick beam tooling and the blade girder production method using the bundle beam tooling |
-
2011
- 2011-12-19 CN CN 201110449904 patent/CN102410137A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822937A (en) * | 2019-03-25 | 2019-05-31 | 上海电气风电集团有限公司 | It is a kind of to prick beam tooling and the blade girder production method using the bundle beam tooling |
| CN109822937B (en) * | 2019-03-25 | 2020-10-30 | 上海电气风电集团股份有限公司 | Bundling tool and production method of blade girder adopting same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |