CN103061971A - Lift-resistance type vertical-axis wind generator blade - Google Patents
Lift-resistance type vertical-axis wind generator blade Download PDFInfo
- Publication number
- CN103061971A CN103061971A CN 201310044898 CN201310044898A CN103061971A CN 103061971 A CN103061971 A CN 103061971A CN 201310044898 CN201310044898 CN 201310044898 CN 201310044898 A CN201310044898 A CN 201310044898A CN 103061971 A CN103061971 A CN 103061971A
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- China
- Prior art keywords
- blade
- type
- lift
- resistance
- air duct
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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
Abstract
The invention discloses a lift-resistance type vertical-axis wind generator blade. The wind generator blade comprises a vertical wing-type blade, wherein an air duct with a transverse arc section is arranged on the blade; openings of the air duct are formed in two side surfaces of the blade, and the convex arc surface of the air duct faces the front edge of the blade while the concave arc surface of the air duct faces the back edge of the blade. According to the lift-resistance type vertical-axis wind generator blade, due to the arrangement of the arc-shaped air duct on the wing-type blade, airflow produces a pressure difference on the wing-type surface of the blade so as to do lift-type work and produces resistance in the arc-shaped air duct of the blade so as to do resistance-type work, so that the blade has the characteristics of a lift-type blade and a resistance-type blade and has large torque, high tip speed ratio and good starting performance. Meanwhile, the wind energy conversion rate of the blade is greatly improved through the superposition of the lift-type work and the resistance-type work.
Description
Technical field
The present invention relates to wind-driven generator, be specifically related to a kind of resistance type vane of vertical shaft wind-driven generator that rises.
Background technique
Existing vane of vertical shaft wind-driven generator mainly is divided into two kinds of lift-type and resistance types, and the lift-type blade is to utilize air stream in the pressure difference acting that blade produces, and has higher tip speed ratio and wind energy transformation rate, but little being difficult to of torque starts; The resistance type blade is to utilize air stream in the resistance acting that blade produces, and have larger torque and good startability, but tip speed ratio and wind energy transformation rate is lower.It is the design of aircraft wing that the disclosed lift-type blade of prior art has mostly followed the aviation aerofoil profile, and it exists blade to start the problem that wind speed is high, power is little, be difficult to start.
Summary of the invention
The object of the invention is to for the problems referred to above, provide a kind of have larger torque, higher tip speed ratio and wind energy transformation rate and a good startability rise the resistance type vane of vertical shaft wind-driven generator.
The technological scheme that realizes above-mentioned purpose is: a kind of resistance type vane of vertical shaft wind-driven generator that rises, it includes the perpendicular wing blades of putting, be arranged with the curved air-flow path of lateral cross section at described blade, the passway of this air-flow path places on the bi-side of blade, the convex globoidal of this air-flow path is towards the leading edge of blade, and the concave arc surface of this air-flow path is towards the trailing edge of blade.
Above-mentioned air-flow path is in the vertically minute multistage setting of blade.
The present invention arranges the arc air-flow path by the blade at air-foil, air stream provides the lift-type acting in the airfoil surface generation pressure difference of blade, air stream produces resistance the resistance type acting is provided in the arc air-flow path of blade, blade possesses the characteristics of lift-type blade and resistance type blade simultaneously, make blade both possess larger torque, higher tip speed ratio, has again good startability, the ability of Effective Raise wind-driven generator reform of nature wind speed working environment.Simultaneously, the stack of lift-type acting and resistance type acting improves the wind energy transformation rate of blade greatly.
Description of drawings
Fig. 1 is that this rises resistance type vane of vertical shaft wind-driven generator structural representation;
Fig. 2 is that this rises resistance type vane of vertical shaft wind-driven generator cross-sectional structure schematic representation.
Embodiment
By reference to the accompanying drawings the specific embodiment of the present invention is described.
Such as accompanying drawing 1, this rises the resistance type vane of vertical shaft wind-driven generator and includes wing blades 1, and this blade 1 erects puts installation.Cross section at described blade 1 is arranged with air-flow path 2, and this air-flow path 2 is in the vertically minute multistage setting of blade 1.The three sections settings in 2 minutes of accompanying drawing embodiment's air-flow path.
Such as accompanying drawing 2, described air-flow path 2 is curved in the lateral cross section of blade, and the passway of this air-flow path 2 places on the bi-side of blade 1, and the convex globoidal of this air-flow path 2 is towards the leading edge of blade 1, and the concave arc surface of this air-flow path 2 is towards the trailing edge of blade 1.
Such as accompanying drawing 2, during implementation of the present invention, crescent shape is arranged in the demarcation strip cross section between the adjacent air-flow path 2, and the both sides point is thin, and resistance is little during the air-flow inlet passage, and interior thickness increases, and is conducive to improve the strength and stiffness of demarcation strip and blade.
The setting of air-flow path 2 of the present invention is equally applicable to the lift-type blade of other blade profile.
Claims (2)
1. one kind rises the resistance type vane of vertical shaft wind-driven generator, it includes the perpendicular wing blades (1) of putting, it is characterized in that: be arranged with the curved air-flow path of lateral cross section (2) at described blade (1), the passway of this air-flow path (2) places on the bi-side of blade (1), the convex globoidal of this air-flow path (2) is towards the leading edge of blade (1), and the concave arc surface of this air-flow path (2) is towards the trailing edge of blade (1).
2. the resistance type vane of vertical shaft wind-driven generator that rises according to claim 1 is characterized in that: described air-flow path (2) is in the vertically minute multistage setting of blade (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310044898 CN103061971A (en) | 2013-02-05 | 2013-02-05 | Lift-resistance type vertical-axis wind generator blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310044898 CN103061971A (en) | 2013-02-05 | 2013-02-05 | Lift-resistance type vertical-axis wind generator blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103061971A true CN103061971A (en) | 2013-04-24 |
Family
ID=48104786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310044898 Pending CN103061971A (en) | 2013-02-05 | 2013-02-05 | Lift-resistance type vertical-axis wind generator blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103061971A (en) |
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2013
- 2013-02-05 CN CN 201310044898 patent/CN103061971A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |