CN203702452U - High-performance ring wing type blade of wind turbine - Google Patents
High-performance ring wing type blade of wind turbine Download PDFInfo
- Publication number
- CN203702452U CN203702452U CN201320655999.4U CN201320655999U CN203702452U CN 203702452 U CN203702452 U CN 203702452U CN 201320655999 U CN201320655999 U CN 201320655999U CN 203702452 U CN203702452 U CN 203702452U
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- China
- Prior art keywords
- blade
- wind
- ring wing
- ring
- wind turbine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The utility model discloses a high-performance ring wing type blade of a wind turbine and belongs to the technical field of wind power generation. The blade is installed on a wind turbine shaft and comprises aring wing blade body, a blade root and a blade root shaft, wherein the ring wing blade body is a circular ring with a wing section or an elliptical ring with a wing section. With the adoption of the blade, the wind energy catching efficiency of the blade of the wind turbine can be improved, the phenomenon that air flows sideslip on the blade and do not work can be prevented, and meanwhile, centrifugal force produced during operation of the ring wing blade body around the wind turbine shaft is fully utilized, converted and used for compressing air flows entering the ring, so that the air flows are ejected from the back edge after being pressurized and converted into jet power with high added values. Noises and induction resistance during high-speed operation of a wind wheel can be greatly reduced by the aid of a ring structure of the ring wing blade body. The blade can be applied to wind turbines of urban wind power generation street lamps and wind driven generators of large wind power plants.
Description
Technical field
The utility model relates to a kind of high performance ring wing type pneumatic equipment blades made, and the utility model belongs to the technical field of wind-power electricity generation.
Background technique
Day by day serious along with world energy sources crisis, and the public grows to even greater heights for the cry of improving the ecological environment, wind energy is a kind of inexhaustible, energy not to the utmost of using, wind energy is more and more subject to the attention of national governments as a kind of clean renewable energy sources.And wind energy conversion system is the best form of utilizing wind energy.
At present, wind energy conversion system is mainly divided into: Horizontal-shaft windmill and the large class of vertical-axis wind driven generator two; For a long time, academia's its stability of approval vertical-axis wind driven generator is better, can also receive the wind of 360 ° of directions, the wind energy capturing efficiency of Horizontal-shaft windmill is higher than vertical-axis wind driven generator, in conjunction with manufacture cost, above two class wind energy conversion systems are contrasted, in the time that the generated output of this two classes wind energy conversion system is identical, its manufacture cost of Horizontal-shaft windmill is far below vertical-axis wind driven generator, so Large Scale Wind Farm Integration mainly adopts collection high efficiency, low cost all over the world, the Horizontal-shaft windmill that efficiently benefits one generates electricity.
In recent years, there is scholar to think: people cross the overall wind energy capturing efficiency of highland appreciable levels axial wind power machine, the wind of nature is protean, the aweather device reaction of Horizontal-shaft windmill lags behind, when wind wheel does not face while the wind comes from direction, air-flow usually breaks away and mistake on the wind wheel blade of wind energy conversion system, do not pass through wind wheel, wind wheel is not also done work, so, actual wind energy capturing efficiency to Horizontal-shaft windmill is had a greatly reduced quality, thereby, can have influence on the height of its total energy conversion efficiency of wind-driven generator; Further, the problem of noise pollution that the blade of wind energy conversion system produces in the time running up.No matter be horizontal axial type or the wind energy conversion system of perpendicular axis type, its blade is the core component that wind energy conversion system catches wind energy, and current, the core component of the prior art, needs to be further improved.
Summary of the invention
(1) technical problem that will solve
The technical problems to be solved in the utility model is: improve wind turbine blade structure, improve the wind energy capturing efficiency of pneumatic equipment blades made, by application the utility model, make the blade of wind energy conversion system there will not be air-flow to break away and cross the problem of not doing work, simultaneously, solve the problem of noise pollution of pneumatic equipment blades made in the time running up, thus the quality when improving the utilization ratio of wind energy and promoting Wind Power Utilization.
(2) technological scheme
In order to address the above problem, the utility model provides a kind of high performance ring wing type pneumatic equipment blades made, is arranged on wind turbine shaft, comprises ring wing blade, blade root, blade root axle, and described ring wing blade is the elliptical ring that is provided with the annulus of aerofoil profile or is provided with aerofoil profile.
Wherein, described ring wing blade is to be supported by blade root, and blade root is to be supported by its inner blade root axle, and the latter end of blade root axle has been implanted in wind turbine shaft, and mutually vertical.
Wherein, described blade root axle is rotary, by rotating blade root axle, can adjustment ring wing blade to best angle of attack position, make to encircle wing blade and keep best aeroperformance.
Wherein, the aerofoil profile being provided with in described ring wing blade is: can select the NACA series aerofoil profile of traditional standard, the RIS φ A series of Denmark, the SERI series of the U.S., the aerofoil profile such as FFA-W series, VACA series of Sweden.
Wherein, the described ring wing blade number being arranged on wind turbine shaft is 1～n.
(3) beneficial effect
Technique scheme tool has the following advantages: the utility model takes full advantage of Venturi effect, makes air-flow as being involved in ring from the leading edge of ring wing blade by funnel, and the centrifugal force in ring is compressed, and afterwards, sprays from trailing edge; Thereby, prevent that air-flow from breakking away and crossing the phenomenon of not doing work from blade, adopted after Revolutionary design scheme of the present utility model, the actual wind energy capturing efficiency of this ring wing blade is far above the pneumatic equipment blades made (exceeding more than 25%) of prior art.Even if the speed at ring winged petiole point place is higher than 5～6 times of wind speed, pneumatic equipment blades made of the present utility model is also quite quiet, so, a kind of high performance ring wing type pneumatic equipment blades made of application the utility model, the quality when can significantly promoting the utilization ratio of wind energy and promoting Wind Power Utilization.
Accompanying drawing explanation
Fig. 1 is the principle schematic of an embodiment of the utility model " a kind of high performance ring wing type pneumatic equipment blades made ";
Fig. 2 is the sectional drawing (A-A) of an embodiment of the utility model " a kind of high performance ring wing type pneumatic equipment blades made ".
In Fig. 1,2,1-ring wing blade, 2-ring winged petiole point, 3-blade root, 4-blade root axle, 5-wind turbine shaft.
Embodiment
Comprehensive drawings and Examples, are described in further detail embodiment of the present utility model below.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.
Shown in Fig. 1 and Fig. 2, " a kind of high performance ring wing type pneumatic equipment blades made " is arranged on wind turbine shaft 5, comprises ring wing blade 1, blade root 3, blade root axle 4, and described ring wing blade 1 is the elliptical ring that is provided with aerofoil profile.
Wherein, described ring wing blade 1 is to be supported by blade root 3, and blade root 3 is to be supported by its inner blade root axle 4, and the latter end of blade root axle 4 has been implanted in wind turbine shaft 5, and mutually vertical.
Wherein, described blade root axle 4 is rotary, by rotate blade root axle 4 can adjustment ring wing blade 1 to best angle of attack position, make to encircle wing blade 1 and keep best aeroperformance.
Wherein, the aerofoil profile that described ring wing blade 1 is set is in the present embodiment VACA0015.
The aerofoil profile data of VACA0015
Wherein, described ring wing blade 1 number being arranged on wind turbine shaft 5 is 3.
Working principle summary:
Rotate blade root axle 4, by ring wing blade 1 the angle of attack adjust to 80 °, when head-on blow more than 2 grades wind time, ring wing blade 1 of the present utility model just can start voluntarily, promoting wind turbine shaft 5 turns round, in the time that wind wheel reaches certain rotating speed, produce Venturi effect, make air-flow as being involved in ring from the leading edge of ring wing blade 1 by funnel, centrifugal force in ring is compressed, air-flow after pressurized sprays from trailing edge, produces powerful reaction force, and wind turbine shaft 5 is run up.1., prevented that air-flow is from the blade phenomenon appearance that blade is not done work of breakking away a kind of high performance ring wing type pneumatic equipment blades made of the utility model, the leading superiority of its technology is:.2., centrifugal force that ring wing blade 1 is produced while turning round around wind turbine shaft 5 makes full use of and transforms, by this centrifugal force for compressing the air-flow that enters ring, after air-flow is pressurized from trailing edge ejection, thereby, be converted into the jet power of high added value.3., apply ring wing blade 1 technology of the present invention (that is: ring structure), noise wind wheel can be reduced greatly run up time.4., apply after aerodynamic arrangement of the present invention, induced drag when its blade movement is much smaller than the like product of prior art.
The above is only preferred implementation of the present utility model, should be understood that, for those skilled in the art, do not departing under the prerequisite of the utility model know-why, can also make some improvement and replacement, for example: ring wing blade 1 of the present utility model, can be used as a power unit, by numerous such power units side by side, the chain of rings together, can be combined into huge wind wheel blade modular structure.These improvement and replacement also should be considered as protection domain of the present utility model.
Claims (5)
1. a high performance ring wing type pneumatic equipment blades made, be arranged on wind turbine shaft (5), comprise ring wing blade (1), blade root (3), blade root axle (4), it is characterized in that: described ring wing blade (1) is the elliptical ring that is provided with the annulus of aerofoil profile or is provided with aerofoil profile.
2. the high performance ring wing type pneumatic equipment blades made of one according to claim 1, it is characterized by: described ring wing blade (1) is to be supported by blade root (3), blade root (3) is to be supported by its inner blade root axle (4), the latter end of blade root axle (4) has been implanted in wind turbine shaft (5), and mutually vertical.
3. the high performance ring wing type pneumatic equipment blades made of one according to claim 2, it is characterized by: described blade root axle (4) is rotary, by rotating blade root axle (4), can adjustment ring wing blade (1) to best angle of attack position, make to encircle wing blade (1) and keep best aeroperformance.
4. the high performance ring wing type pneumatic equipment blades made of one according to claim 1, is characterized by: the SERI series of the NACA series that the aerofoil profile being provided with in described ring wing blade (1) can selection standard, the RIS φ A series of Denmark, the U.S., the FFA-W series of Sweden, VACA series aerofoil profile.
5. the high performance ring wing type pneumatic equipment blades made of one according to claim 1 and 2, is characterized by: described ring wing blade (1) number being arranged on wind turbine shaft (5) is 1～n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655999.4U CN203702452U (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type blade of wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655999.4U CN203702452U (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type blade of wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702452U true CN203702452U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320655999.4U Expired - Lifetime CN203702452U (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type blade of wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203702452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527398A (en) * | 2013-10-22 | 2014-01-22 | 冯智勇 | High-performance ring wing type wind turbine blade |
-
2013
- 2013-10-22 CN CN201320655999.4U patent/CN203702452U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527398A (en) * | 2013-10-22 | 2014-01-22 | 冯智勇 | High-performance ring wing type wind turbine blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |