CN101566126A - Lift-drag complementary vertical axis wind wheel - Google Patents
Lift-drag complementary vertical axis wind wheel Download PDFInfo
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- CN101566126A CN101566126A CNA2009100311743A CN200910031174A CN101566126A CN 101566126 A CN101566126 A CN 101566126A CN A2009100311743 A CNA2009100311743 A CN A2009100311743A CN 200910031174 A CN200910031174 A CN 200910031174A CN 101566126 A CN101566126 A CN 101566126A
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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 discloses a lift-drag complementary vertical axis wind wheel, which comprises a wind wheel axis. The wind wheel axis is provided with two to three lift-type blades and two to three drag-type spiral blades, and the ratio of the rotation diameter of the drag-type spiral blades to the rotation equatorial diameter of the lift-type blades is 1:3-7. Compared with the prior art, a structure of which the ratio of the rotation diameter of the drag-type spiral blades to the rotation equatorial diameter of the lift-type blades of 1:3-7 is designed, so that the wind energy utilization ratio of the wind wheel is 5 percent higher than the prior complementary wind wheel. The compactness of the lift-type blades sigma is between 0.13 and 0.4, and the output power of the lift-type blades in the interval is maximum; and a spiral angle of the drag-type blades is designed between 90 and 360 degrees. Partial downwind concave blades are stressed by the thrust of wind at arbitrary intersection angle so as to increase the positive moment of the wind wheel and increase the efficiency of the wind wheel. End covers are arranged at two ends of the drag-type blades and partition boards are arranged in the blades so as to increase the wind gathering capability of concave blades, increase the positive moment and improve the wind wheel efficiency.
Description
Technical field
The present invention relates to the technology and equipment of lift-type and resistance force type vertical shaft wind wheel.
Background technique
Wind energy, solar energy are the new energy of very being paid close attention to both at home and abroad at present, also are the new energy of giving priority to 21 century.90% wind energy conversion system adopts horizontal axis rotor in the world at present, and horizontal axis rotor Blade Design complexity, its core design technology are only grasped in the supplier of several family hand, thereby cost of equipment is higher.In addition, horizontal axis rotor also have starting torque little, be limited by wind direction, the wind wheel noise is big, installation and maintenance expense reliability higher, wind wheel is relatively poor, allow operation wind speed range (5～25m/s) narrower, blade is long, the deficiency of transportation inconvenience etc.
On the contrary, vertical axis rotor all has very remarkable advantages in the deficiency of above-mentioned horizontal axis rotor, and the type lifting vertical shaft wind wheel power coefficient is not less than horizontal axis rotor.Therefore, the development type lifting vertical shaft wind wheel is to reduce a kind of good selection of wind power cost.
Egg beater shape lifting wind wheel is at present unique vertical axis rotor that can hugeization, but its starting torque is zero, needs to start by external force, seriously limit its development.In order to address the above problem, existing also have the lift-drag complementary wind wheel, promptly adopt prismatic blade S type wind wheel to start lifting wind wheel, but it only has startability at part merit angle, and starting torque is little, and this deficiency will be more obvious after maximization.
Summary of the invention
Technical problem to be solved by this invention is at above-mentioned the deficiencies in the prior art, and a kind of tool self-starting is provided, and the big lift-drag complementary wind wheel of starting torque.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows: a kind of lift-drag complementary vertical axis wind wheel, comprise rotor shaft, described rotor shaft is provided with 2～3 lift-type blades and 2～3 spirality resistance type blades, and the rotating diameter of spirality resistance type blade and lift-type blade rotation equatorial diameter ratio are 1: 3～7.
Described lift-type blade degree of compaction σ is 0.13～0.5, σ=2NC/D, and wherein C is the blade chord length, and N is the number of blade, and D is lift-type blade rotation equatorial diameter.
The spiral angle of described spirality resistance type blade is 90 °～360 °.
Two ends at described spirality resistance type blade are provided with end cap, are provided with dividing plate in the internal surface compartment of terrain of described spirality resistance type blade.
Compared with prior art, the beneficial effect of lift-drag complementary wind wheel of the present invention is:
1, lift-type blade and spirality resistance type blade are set simultaneously on rotor shaft, wind energy utilization is higher by 5% than existing complementary type wind wheel, starting torque is big than existing complementary type wind wheel all at all corners, so all have good startability in any angle.The lift-type blade rotational speed is very fast, and the blade tip linear velocity is 3～5 times of wind speed during peak power; And spirality resistance type blade rotational speed is slower, the blade tip linear velocity is about 0.8 times of a wind speed during peak output, therefore, design resistance type blade rotating diameter and lift-type blade equatorial diameter ratio are 1: 3～7 structure, and can make wind wheel wind energy utilization high by 5% than existing complementary type wind wheel.
2, lift-type blade degree of compaction σ=0.13～0.4, lift-type blade output power maximum in this is interval; Resistance type blade screw angle design is 90 °～360 °, any rotation angle all have part with the wind concave-blade be subjected to the thrust of wind, increased the positive moment of wind wheel, thereby also increased the efficient of wind wheel; Add at resistance type blade two ends and to add the wind gathering ability that dividing plate all can increase concave-blade in end cap and the blade, increase positive moment, increase wind wheel efficient.
Description of drawings
Fig. 1 is the novel lift-drag complementary vertical axis wind wheel schematic representation of the present invention.
Fig. 2 is the spirality resistance type blade structure schematic representation that the present invention has end cap and dividing plate.
Fig. 3 is a spirality resistance type blade section structural representation.
Wherein: 1, rotor shaft; 2, lift-type blade; 3, spirality resistance type blade; 4, end cap; 5, lift-type blade rotation equatorial diameter; 6, resistance type convex surface blade; 7, resistance type concave-blade; 8, dividing plate; 9, resistance type blade rotating diameter.
Embodiment
1, below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1, lift-drag complementary wind wheel of the present invention comprises rotor shaft, and 2～3 lift-type blades 2 and 2～3 spirality resistance type blades 3 are installed on rotor shaft 1.Fig. 2 is the spirality resistance type blade structure schematic representation that end cap 4 and dividing plate are arranged of 2 blades, is made up of a slice convex surface blade 6 and concave-blade 7, axially is separated by 180 °, and section becomes the S type, as shown in Figure 3.Spirality resistance type blade is formed after rotor shaft 1 axially rotates to an angle by S shape blade profile, and the blade angle of swing is 90 °～360 °; Eccentric distance e and blade diameter d ratio (coefficient of excentralization) are between 0～0.4; The blade two ends are provided with capping 4, and then its diameter and rotating diameter 9 ratios are 1～1.2; The blade internal surface can be set up internal partition 8 at interval, and the internal partition schematic representation is shown in 2.
2, the rotating diameter 9 of spirality resistance type blade is 1: 3～7 with equatorial diameter 5 ratios of lift-type blade.Lift-type blade degree of compaction σ is 0.13～0.4, σ=2NC/D, and wherein C is the vane airfoil profile chord length, N is that the number of blade and D are blade rotation equatorial radius.
The present invention is novel lift-drag complementary vertical axis wind wheel, is made up of lift-type blade 2 and spirality resistance type blade 3, and wherein spirality resistance type blade all has higher starting torque at any merit angle, promotes the lift-type blade and starts rotation.Lift-type blade rotation equatorial diameter is 3～7 times of spirality resistance type blade rotating diameter, and all rotation plays impetus to the resistance type blade to the lift-type blade all the time, has increased moment, thereby has strengthened the wind energy transformation rate of complementary type wind wheel.
Claims (4)
1, a kind of lift-drag complementary wind wheel, comprise rotor shaft (1), described rotor shaft is provided with 2～3 lift-type blades (2) and 2～3 spirality resistance type blades (3), and the rotating diameter (9) of spirality resistance type blade is 1: 3～7 with equatorial diameter (5) ratio of lift-type blade.
2, lift-drag complementary wind wheel according to claim 1 is characterized in that: described lift-type blade degree of compaction σ is 0.13～0.4, σ=2NC/D, and wherein C is the blade chord length, N is that the number of blade and D are blade rotation equatorial diameter.
3, described lift-drag complementary wind wheel according to claim 1 is characterized in that: the spiral angle of described spirality resistance type blade is 90 °～360 °.
4, according to claim 1,2 or 3 described lift-drag complementary wind wheels, it is characterized in that: be provided with end cap (4) at the two ends of described spirality resistance type blade, the internal surface of described spirality resistance type blade at interval be provided with dividing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100311743A CN101566126A (en) | 2009-04-24 | 2009-04-24 | Lift-drag complementary vertical axis wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100311743A CN101566126A (en) | 2009-04-24 | 2009-04-24 | Lift-drag complementary vertical axis wind wheel |
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| CN101566126A true CN101566126A (en) | 2009-10-28 |
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| CNA2009100311743A Pending CN101566126A (en) | 2009-04-24 | 2009-04-24 | Lift-drag complementary vertical axis wind wheel |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072102A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Wind driven generator |
| CN102072101A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Vertical-axis wind driven generator |
| CN102072099A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Vertical shaft wind driven generator |
| CN102094752A (en) * | 2011-03-11 | 2011-06-15 | 上海大学 | Energy-collecting speed-increasing reverse-rotating lift-drag composite type vertical shaft wind power machine |
| WO2011107631A1 (en) * | 2010-03-02 | 2011-09-09 | Geolica Innovations, S.L. | Vertical-axis wind rotor |
| CN102338041A (en) * | 2011-10-11 | 2012-02-01 | 沈阳航空航天大学 | Double-shaft lift-drag combination wind power generation system |
| CN102392782A (en) * | 2011-09-19 | 2012-03-28 | 重庆大学 | Lift-drag non-fixed combined vertical axis wind turbine |
| CN103644077A (en) * | 2013-11-27 | 2014-03-19 | 山东大学苏州研究院 | Self-starting portable vertical-axis wind driven generator |
| CN103670912A (en) * | 2012-09-11 | 2014-03-26 | 北京航空航天大学 | Novel lift-to-drag combination phi-S type vertical shaft wind machine |
| CN103775283A (en) * | 2012-10-22 | 2014-05-07 | 北京航空航天大学 | Novel lift-drag complementary type vertical-axis wind turbine |
| CN104747375A (en) * | 2013-12-30 | 2015-07-01 | 上海稳得新能源科技有限公司 | Improved extra-large vertical-axis wind-driven turbine power generator system |
| CN104832372A (en) * | 2014-02-12 | 2015-08-12 | 上海稳得新能源科技有限公司 | 10MW level aerodynamic braking vertical axis wind power system |
| CN105298743A (en) * | 2015-11-12 | 2016-02-03 | 浙江大学 | Darrieus-Savonius combined vertical shaft wind power generator |
| CN106050555A (en) * | 2016-04-15 | 2016-10-26 | 陈忠维 | Wind oxygen enriching machine |
| CN107701350A (en) * | 2017-10-30 | 2018-02-16 | 株洲南方阀门股份有限公司 | A kind of flow generator of power generation stabilization |
| CN109026496A (en) * | 2018-09-12 | 2018-12-18 | 中国农业大学 | Runner and pipe type hydraulic turbine |
| CN112901413A (en) * | 2019-12-03 | 2021-06-04 | 周中奇 | Vertical shaft fluid energy conversion device |
-
2009
- 2009-04-24 CN CNA2009100311743A patent/CN101566126A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011107631A1 (en) * | 2010-03-02 | 2011-09-09 | Geolica Innovations, S.L. | Vertical-axis wind rotor |
| ES2364828A1 (en) * | 2010-03-02 | 2011-09-15 | Juan Jose Eguizabal Garcia | Vertical-axis wind rotor |
| CN102072101A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Vertical-axis wind driven generator |
| CN102072099A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Vertical shaft wind driven generator |
| CN102072102A (en) * | 2011-02-25 | 2011-05-25 | 江苏澳盛风能设备科技有限公司 | Wind driven generator |
| CN102094752A (en) * | 2011-03-11 | 2011-06-15 | 上海大学 | Energy-collecting speed-increasing reverse-rotating lift-drag composite type vertical shaft wind power machine |
| CN102392782A (en) * | 2011-09-19 | 2012-03-28 | 重庆大学 | Lift-drag non-fixed combined vertical axis wind turbine |
| CN102338041A (en) * | 2011-10-11 | 2012-02-01 | 沈阳航空航天大学 | Double-shaft lift-drag combination wind power generation system |
| CN103670912A (en) * | 2012-09-11 | 2014-03-26 | 北京航空航天大学 | Novel lift-to-drag combination phi-S type vertical shaft wind machine |
| CN103775283A (en) * | 2012-10-22 | 2014-05-07 | 北京航空航天大学 | Novel lift-drag complementary type vertical-axis wind turbine |
| CN103644077A (en) * | 2013-11-27 | 2014-03-19 | 山东大学苏州研究院 | Self-starting portable vertical-axis wind driven generator |
| CN104747375A (en) * | 2013-12-30 | 2015-07-01 | 上海稳得新能源科技有限公司 | Improved extra-large vertical-axis wind-driven turbine power generator system |
| CN104832372A (en) * | 2014-02-12 | 2015-08-12 | 上海稳得新能源科技有限公司 | 10MW level aerodynamic braking vertical axis wind power system |
| CN105298743A (en) * | 2015-11-12 | 2016-02-03 | 浙江大学 | Darrieus-Savonius combined vertical shaft wind power generator |
| CN105298743B (en) * | 2015-11-12 | 2018-02-23 | 浙江大学 | Darrieus Sa Woniusi Combined wind-driven generator with vertical shaft |
| CN106050555A (en) * | 2016-04-15 | 2016-10-26 | 陈忠维 | Wind oxygen enriching machine |
| CN107701350A (en) * | 2017-10-30 | 2018-02-16 | 株洲南方阀门股份有限公司 | A kind of flow generator of power generation stabilization |
| CN109026496A (en) * | 2018-09-12 | 2018-12-18 | 中国农业大学 | Runner and pipe type hydraulic turbine |
| CN112901413A (en) * | 2019-12-03 | 2021-06-04 | 周中奇 | Vertical shaft fluid energy conversion device |
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Open date: 20091028 |