CN103527398A - High-performance ring wing type wind turbine blade - Google Patents
High-performance ring wing type wind turbine blade Download PDFInfo
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- CN103527398A CN103527398A CN201310502691.0A CN201310502691A CN103527398A CN 103527398 A CN103527398 A CN 103527398A CN 201310502691 A CN201310502691 A CN 201310502691A CN 103527398 A CN103527398 A CN 103527398A
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- ring wing
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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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Abstract
The invention discloses a high-performance ring wing type wind turbine blade, and belongs to the technical field of wind power generation. The high-performance ring wing type wind turbine blade is installed on a wind turbine shaft and comprises a ring wing blade body, a blade root and a blade root shaft, wherein the ring wing blade body is provided with a wing type circular ring or a wing type oval ring. By applying the high-performance ring wing type wind turbine blade, the wind energy capture efficiency of the wind turbine blade can be improved, and the phenomenon that air flow sideslips across the ring wing blade body without applying work is prevented from happening; meanwhile, centrifugal force generated when the ring wing blade body runs around the wind turbine shaft is fully utilized and converted to compress the air flow entering the ring so that the air flow can be ejected from the rear edge of the ring after being pressurized, and therefore the centrifugal force is converted into high value-added jet power. According to the high-performance ring wing type wind turbine blade, the ring-shaped structure of the ring wing blade body also can greatly reduce noise and induced drag when a wind wheel runs at a high speed; the high-performance ring wing type wind turbine blade can be applied to a wind turbine of an urban wind power generation street lamp as well as a wind driven generator in a large wind power plant.
Description
Technical field
The present invention relates to a kind of high performance ring wing type pneumatic equipment blades made, the invention 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, when 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, to wind wheel also not acting, 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; Also has the problem of noise pollution that the blade of wind energy conversion system produces when 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 problem to be solved in the present invention is: improve wind turbine blade structure, improve the wind energy capturing efficiency of pneumatic equipment blades made, by application the present invention, 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 when 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 invention provides a kind of high performance ring wing type pneumatic equipment blades made, be arranged on wind turbine shaft, comprise ring wing blade, blade root, blade root axle, 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 the traditional standard aerofoil profiles such as the SERI U.S. FFA-W serial, Sweden is serial, the RIS φ A of Denmark is serial, VACA is serial.
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 present invention 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, from trailing edge, sprays; Thereby, prevented that air-flow from breakking away and crossing the phenomenon that there is no acting from blade, adopted after Revolutionary design scheme of the present invention, 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 invention is also quite quiet, so, a kind of high performance ring wing type pneumatic equipment blades made of application the present invention, the quality when can significantly promote the utilization ratio of wind energy and promoting Wind Power Utilization.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the present invention's's a " a kind of high performance ring wing type pneumatic equipment blades made " embodiment;
Fig. 2 is the sectional drawing (A-A) of the present invention's's a " a kind of high performance ring wing type pneumatic equipment blades made " embodiment.
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
Below comprehensive drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
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
| X | 0 | 1.25 | 2.5 | 5 | 7.5 | 10 | 15 | 20 | 25 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 95 | 100 |
| On Y | 0 | ? | 3.3 | 4.4 | ? | 5.9 | ? | 7.2 | ? | 7.5 | 7.3 | 6.6 | 5.7 | 4.6 | 3.3 | 1.8 | ? | 0 |
| Under Y | 0 | ? | -3.3 | -4.4 | ? | -5.9 | ? | -7.2 | ? | -7.5 | -7.3 | -6.6 | -5.7 | -4.6 | -3.3 | -1.8 | ? | 0 |
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 invention just can start voluntarily, promote wind turbine shaft 5 runnings, when 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 from occurring from the blade phenomenon that blade is not done work of breakking away the present invention a kind of high performance ring wing type pneumatic equipment blades made, the leading superiority of its technology is:.2., centrifugal force that ring wing blade 1 is produced during around wind turbine shaft 5 running 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), the noise in the time of wind wheel can be reduced greatly running up.4., apply after aerodynamic arrangement of the present invention, induced drag during its blade movement is much smaller than the like product of prior art.
The above is only the preferred embodiment of the present invention, should be understood that, for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle, can also make some improvement and replacement, for example: ring wing blade 1 of the present invention, 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 scope of the present invention.
Claims (6)
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. a kind of high performance ring wing type pneumatic equipment blades made 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. a kind of high performance ring wing type pneumatic equipment blades made 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. a kind of high performance ring wing type pneumatic equipment blades made according to claim 1, is characterized by: the aerofoil profile being provided with in described ring wing blade (1) can the NACA series of selection standard, the RIS φ A series of Denmark, the SERI series of the U.S., the aerofoil profile such as FFA-W series, the VACA of Sweden be serial.
5. a kind of high performance ring wing type pneumatic equipment blades made 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.
6. a kind of high performance ring wing type pneumatic equipment blades made according to claim 5, it is characterized by: described ring wing blade (1), 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502691.0A CN103527398A (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type wind turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502691.0A CN103527398A (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type wind turbine blade |
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| Publication Number | Publication Date |
|---|---|
| CN103527398A true CN103527398A (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310502691.0A Pending CN103527398A (en) | 2013-10-22 | 2013-10-22 | High-performance ring wing type wind turbine blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013147940A (en) * | 2012-01-17 | 2013-08-01 | Tottori Univ | Vane for vertical shaft wind turbine, wind turbine and electric power generator |
| CN106382184A (en) * | 2016-11-07 | 2017-02-08 | 冯智勇 | High-performance wind turbine blade with ring wing on blade tip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1368923A (en) * | 1999-07-06 | 2002-09-11 | 鲁道夫·班纳赫 | Rotor with split rotor blade |
| CN101971481A (en) * | 2007-11-05 | 2011-02-09 | 托马斯·斯图尔特·贝尔纳茨 | Horizontal axis wind turbine rotor assembly with lifting body rotor blades |
| JP2011085127A (en) * | 2009-10-15 | 2011-04-28 | Hiroo Ichikawa | Rotor |
| CN203702452U (en) * | 2013-10-22 | 2014-07-09 | 冯智勇 | High-performance ring wing type blade of wind turbine |
-
2013
- 2013-10-22 CN CN201310502691.0A patent/CN103527398A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1368923A (en) * | 1999-07-06 | 2002-09-11 | 鲁道夫·班纳赫 | Rotor with split rotor blade |
| CN101971481A (en) * | 2007-11-05 | 2011-02-09 | 托马斯·斯图尔特·贝尔纳茨 | Horizontal axis wind turbine rotor assembly with lifting body rotor blades |
| JP2011085127A (en) * | 2009-10-15 | 2011-04-28 | Hiroo Ichikawa | Rotor |
| CN203702452U (en) * | 2013-10-22 | 2014-07-09 | 冯智勇 | High-performance ring wing type blade of wind turbine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013147940A (en) * | 2012-01-17 | 2013-08-01 | Tottori Univ | Vane for vertical shaft wind turbine, wind turbine and electric power generator |
| CN106382184A (en) * | 2016-11-07 | 2017-02-08 | 冯智勇 | High-performance wind turbine blade with ring wing on blade tip |
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Application publication date: 20140122 |