CN102562442A - Blade of vertical-axis wind turbine - Google Patents
Blade of vertical-axis wind turbine Download PDFInfo
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- CN102562442A CN102562442A CN201210026191XA CN201210026191A CN102562442A CN 102562442 A CN102562442 A CN 102562442A CN 201210026191X A CN201210026191X A CN 201210026191XA CN 201210026191 A CN201210026191 A CN 201210026191A CN 102562442 A CN102562442 A CN 102562442A
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- blade
- section
- straight
- bending
- vane
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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
A blade of a vertical-axis wind turbine is a vertical running blade. The cross section of the blade is in the shape of an asymmetrical airfoil with the curvature of the outer side higher than that of the inner side. Both the upper portion and the lower portion of the blade are straight blade sections, the middle of the blade is a bending blade section bending outwards, the thickness of the bending blade section is reduced gradually from the middle to the upper end and the lower end, and the bending blade section is in smoothly transitional joint with the upper straight blade section and the lower straight blade section, so that the straight and bending combined blade consisting of the upper straight blade section, the lower straight blade section and the middle bending blade section is formed. Besides, a wind resistant cavity with an opening located on the inner side of the back edge is arranged in the middle of the blade. The technical scheme of the blade further includes that the front edge and the back edge of the middle of the blade are curved and protruded outwards so that the blade is unequal in width, and further the blade has a hollow structure. Compared with the existing blade of the vertical-axis wind turbine, the blade has the advantages of higher torque, higher tip speed and wind energy conversion rate and fine starting performance.
Description
Technical field
The present invention relates to wind-driven generator, be specifically related to a kind of vane of vertical shaft wind-driven generator.
Background technique
At present, vane of vertical shaft wind-driven generator mainly contains resistance type and lift-type, and the resistance type blade is the resistance acting that utilizes air stream on blade, to produce, and have bigger torque and good startability, but tip speed ratio and wind energy transformation rate is lower.The lift-type blade is the pressure difference acting that utilizes air stream on blade, to produce, and has higher tip speed ratio and wind energy transformation rate, but torque is difficult to start for a short time.It is the design of aircraft wing that the disclosed lift-type blade of existing technology has mostly followed the aviation aerofoil profile, and the relative air of aircraft wing is an active body, and air is by kinetoplast, and the relative velocity of aircraft wing and air is higher in addition.The blade working system that wind-driven generator is used is just in time opposite with the work system of aircraft wing, and promptly air is an active body, and blade is by kinetoplast, and the relative velocity of blade and air is lower.So the blade of aviation Airfoil Design can not well satisfy the requirement of wind-driven generator.
Summary of the invention
The objective of the invention is to provides a kind of bigger torque that has to the problems referred to above, the vane of vertical shaft wind-driven generator of higher tip speed ratio, wind energy transformation rate and good startability.
The technological scheme that realizes above-mentioned purpose is: a kind of vane of vertical shaft wind-driven generator, and it puts the blade of work for perpendicular, and the cross section of this blade is the asymmetric air-foil of outer side surface camber greater than the inner side surface camber; The upper and lower of said blade is the straight blades section; The curved vane section of middle part for being convexly curved laterally; And the thickness of its curved vane section is successively decreased and said upper and lower straight blades section smooth transition is joined to two ends up and down by the centre, and constituting the upper and lower is that straight blades section, middle part are the straight and crooked combined blade of curved vane section; Be provided with opening at the middle part of said blade and be positioned at the inboard choke chamber of trailing edge.
The leading edge at said blade middle part and trailing edge be curved outside protrusion respectively, forms the blade that does not wait width.
Described blade is arranged to hollow structure.
Agent structure of the present invention adopts asymmetric air-foil, and can better adapt to the air is that active body, blade are by the work system of kinetoplast, the working environment of more effective adaptation nature wind speed; Adopt straight and crooked combined blade, blade is worked under different turning radius, can better adapt to the requirement that wind speed changes; The choke chamber design of blade middle part trailing edge inside makes blade tool drag characteristic, is convenient to start, and tool energy-storage function simultaneously can effectively be avoided the stepping phenomenon of wind-driven generator.
The present invention adopts the middle wide and crooked laterally design of blade, can better collect wind energy.
The present invention adopts hollow structure, helps reducing the weight and the cost of production of blade, and minimizing simultaneously produces the rotation safety problem that big inertia brings because of big quality.
Description of drawings
Fig. 1 is this vane of vertical shaft wind-driven generator structural representation;
Fig. 2 is the plan view of this vane of vertical shaft wind-driven generator;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the A-A profile of Fig. 3;
Fig. 5 is the B-B profile of Fig. 3.
Embodiment
Describe in conjunction with the accompanying drawing specific embodiments of the invention.
Like accompanying drawing, this vane of vertical shaft wind-driven generator is put the blade of installment work for perpendicular, and this blade is the asymmetric air-foil of outer side surface camber greater than the inner side surface camber.The top 1 and the bottom 2 of this blade are the straight blades section; The curved vane section of middle part 3 for being convexly curved laterally; The thickness of its curved vane section is successively decreased and upper and lower straight blades section smooth transition is joined to two ends up and down by the centre, and constituting the upper and lower is that straight blades section, middle part are the straight and crooked combined blade of curved vane section.Be provided with choke chamber 4 at the middle part of blade, the opening in this choke chamber 4 is lip, is positioned at the vane trailing edge inboard, and cavity is shunk to the intrados transition by opening gradually, is triangular cavity roughly.
The leading edge at this vane of vertical shaft wind-driven generator middle part and trailing edge be curved outside protrusion respectively, forms the blade that does not wait width.
Blade of the present invention is arranged to hollow structure.
Claims (3)
1. a vane of vertical shaft wind-driven generator is put the blade of work for perpendicular, and it is characterized in that: the cross section of this blade is the asymmetric air-foil of outer side surface camber greater than the inner side surface camber; The upper and lower of said blade is the straight blades section; The curved vane section of middle part for being convexly curved laterally; And the thickness of its curved vane section is successively decreased and described upper and lower straight blades section smooth transition is joined to two ends up and down by the centre, and constituting the upper and lower is that straight blades section, middle part are the straight and crooked combined blade of curved vane section; Be provided with opening at the middle part of said blade and be positioned at the inboard choke chamber of trailing edge.
2. vane of vertical shaft wind-driven generator according to claim 1 is characterized in that: the leading edge at said blade middle part and trailing edge be curved outside protrusion respectively, forms the blade that does not wait width.
3. vane of vertical shaft wind-driven generator according to claim 1 and 2 is characterized in that: described blade is arranged to hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026191.XA CN102562442B (en) | 2012-02-07 | 2012-02-07 | Vane of vertical shaft wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210026191.XA CN102562442B (en) | 2012-02-07 | 2012-02-07 | Vane of vertical shaft wind-driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102562442A true CN102562442A (en) | 2012-07-11 |
| CN102562442B CN102562442B (en) | 2015-09-16 |
Family
ID=46408786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210026191.XA Expired - Fee Related CN102562442B (en) | 2012-02-07 | 2012-02-07 | Vane of vertical shaft wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562442B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103147A (en) * | 1985-04-04 | 1987-05-13 | 赫脱转动体有限公司 | Wind energy converter |
| CN1604993A (en) * | 2001-12-14 | 2005-04-06 | 环球能源株式会社 | Wind power generator, windmill, and spindle and blade of the windmill |
| CN101135294A (en) * | 2006-09-01 | 2008-03-05 | 金龙 | Wind power-generating impeller having extra-strong driving force |
| CN101583792A (en) * | 2006-12-04 | 2009-11-18 | 设计许可国际集团有限公司 | A wind turbine apparatus |
| CN201486754U (en) * | 2009-08-27 | 2010-05-26 | 上海凡鸿环保科技发展有限公司 | Vertical shaft wind turbine and blade structure thereof |
| EP2236819A1 (en) * | 2008-01-25 | 2010-10-06 | Noguchi, Tsuneo | Vertical axis wind turbine |
| CN201747518U (en) * | 2009-11-05 | 2011-02-16 | 张建新 | Vertical shaft hook-shaped wing lift and drag compatible wind machine |
| CN202468156U (en) * | 2012-02-07 | 2012-10-03 | 秦皇岛风日和科技有限公司 | Blade of vertical axis wind-driven generator |
-
2012
- 2012-02-07 CN CN201210026191.XA patent/CN102562442B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103147A (en) * | 1985-04-04 | 1987-05-13 | 赫脱转动体有限公司 | Wind energy converter |
| CN1604993A (en) * | 2001-12-14 | 2005-04-06 | 环球能源株式会社 | Wind power generator, windmill, and spindle and blade of the windmill |
| CN101135294A (en) * | 2006-09-01 | 2008-03-05 | 金龙 | Wind power-generating impeller having extra-strong driving force |
| CN101583792A (en) * | 2006-12-04 | 2009-11-18 | 设计许可国际集团有限公司 | A wind turbine apparatus |
| EP2236819A1 (en) * | 2008-01-25 | 2010-10-06 | Noguchi, Tsuneo | Vertical axis wind turbine |
| CN201486754U (en) * | 2009-08-27 | 2010-05-26 | 上海凡鸿环保科技发展有限公司 | Vertical shaft wind turbine and blade structure thereof |
| CN201747518U (en) * | 2009-11-05 | 2011-02-16 | 张建新 | Vertical shaft hook-shaped wing lift and drag compatible wind machine |
| CN202468156U (en) * | 2012-02-07 | 2012-10-03 | 秦皇岛风日和科技有限公司 | Blade of vertical axis wind-driven generator |
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| Publication number | Publication date |
|---|---|
| CN102562442B (en) | 2015-09-16 |
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Granted publication date: 20150916 Termination date: 20200207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |