CN201412269Y - Combination type vertical axis wind turbine - Google Patents
Combination type vertical axis wind turbine Download PDFInfo
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- CN201412269Y CN201412269Y CN2009200398954U CN200920039895U CN201412269Y CN 201412269 Y CN201412269 Y CN 201412269Y CN 2009200398954 U CN2009200398954 U CN 2009200398954U CN 200920039895 U CN200920039895 U CN 200920039895U CN 201412269 Y CN201412269 Y CN 201412269Y
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- wind
- wind turbine
- wing blades
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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 utility model discloses a combination type vertical axis wind turbine, which comprises a wind turbine shaft. The wind turbine shaft is provided with two to three wing-shaped blades and two to three spiral S-shaped blades, the ratio of the rotating diameter of the spiral S-shaped blades and the rotating equatorial diameter of the wing-shaped blades is from 1 to 3 to 1 to 7. The wing-shaped blades form a phi shape, thereby enhancing the structural strength of the wind turbine. Compared with the prior art, the wind energy utilization rate of the utility model is 5 percent higher than the existing combination type wind turbine, and the dynamic performances of the utility model are more superior.
Description
Technical field
The utility model relates to the technology and equipment of wing blade and S type upright shaft wind motor.
Background technique
Wind energy and 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-shaft wind turbine in the world at present, and horizontal-shaft wind turbine 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-shaft wind turbine also have starting torque little, be limited by wind direction, the wind energy conversion system noise is big, installation and maintenance expense reliability higher, wind energy conversion system is relatively poor, allow operation wind speed range (5～25m/s) narrower, blade is long, the deficiency of transportation inconvenience etc.
On the contrary, upright shaft wind motor all has very remarkable advantages in the deficiency of above-mentioned horizontal-shaft wind turbine, and Darrieus upright shaft wind motor power coefficient is not less than horizontal-shaft wind turbine.Therefore, development Darrieus upright shaft wind motor is to reduce a kind of good selection of wind power cost.
Φ shape Darrieus type wind energy conversion system is at present unique upright shaft wind motor 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 combined wind energy conversion system, promptly adopt prismatic blade S type wind energy conversion system to come Starter Darrieus wind energy conversion system, 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 in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of tool self-starting and the higher combined wind energy conversion system of wind energy transformation rate are provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows: a kind of combined upright shaft wind motor, comprise the wind-force arbor, described wind-force arbor is provided with 2～3 wing blades and 2～3 spirality S type blades, the rotating diameter of spirality S type blade and wing blades rotation equatorial diameter ratio are 1: 3～7, wing blades constitutes Φ shape, strengthens the structural strength of wind energy conversion system.
Described wing blades 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 a wing blades rotation equatorial diameter.
The spiral angle of described spirality S type blade is 90 °～360 °.
Two ends at described spirality S type blade are provided with end cap, are provided with dividing plate in the internal surface compartment of terrain of described spirality S type blade.
Compared with prior art, the beneficial effect of the combined wind energy conversion system of the utility model is:
1, wing blades and spirality S type blade are set simultaneously on the wind-force arbor, wind energy utilization is higher by 5% than existing combined wind energy conversion system, starting torque is big than existing combined wind energy conversion system all at all corners, so all have good startability in any angle.The wing blades rotating speed is very fast, and the blade tip linear velocity is 3～5 times of wind speed during peak power; And spirality S 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 S type blade rotating diameter and wing blades equatorial diameter ratio are 1: 3～7 structure, and can make the wind energy conversion system wind energy utilization than having the high by 5% of combined wind energy conversion system now.
2, wing blades and spirality S type blade are installed in series, spiral S type blade installation is in the bottom of wing blades, the aerodynamic field of spiral S type blade and wing blades does not disturb mutually like this, therefore than the wind energy utilization height that has the overlapping installation of combined wind energy conversion system now.
3, wing blades degree of compaction σ=0.13～0.4, wing blades output power maximum in this is interval; S 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 energy conversion system, thereby also increased the efficient of wind energy conversion system; Add at S 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 energy conversion system efficient.
Description of drawings
Fig. 1 is the combined upright shaft wind motor schematic representation of the utility model.
Fig. 2 is the utility model wing blades cross-sectional configuration schematic representation
Fig. 3 is the spirality S type blade structure schematic representation that the utility model has end cap and dividing plate.
Fig. 4 is a spirality S type blade section structural representation.
Wherein: 1, wind-force arbor; 2, wing blades; 3, spirality S type blade; 4, end cap; 5, wing blades rotation equatorial diameter; 6, S type convex surface blade; 7, S type concave-blade; 8, dividing plate; 9, S type blade rotating diameter.
Embodiment
1, below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, the combined wind energy conversion system of the utility model comprises the wind-force arbor, and 2～3 wing blades 2 and 2～3 spirality S type blades 3 are installed on wind-force arbor 1.Fig. 2 is the spirality S 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 S type blade is formed after wind-force arbor 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 S type blade is 1: 3～7 with equatorial diameter 5 ratios of wing blades.Wing blades 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 utility model is combined upright shaft wind motor, is made up of wing blades 2 and spirality S type blade 3, and wherein spirality S type blade all has higher starting torque at any merit angle, promotes wing blades and starts rotation.Wing blades constitutes Φ shape, and its rotation equatorial diameter is 3～7 times of spirality S type blade rotating diameter, and all rotation plays impetus to S type blade to wing blades all the time, has increased moment, thereby has strengthened the wind energy transformation rate of combined wind energy conversion system.S type blade is placed in the bottom of wing blades, and the air flow field of two blades does not exert an influence, and increases the performance of combined upright shaft wind motor.
Claims (4)
1, a kind of combined upright shaft wind motor, comprise wind-force arbor (1), described wind-force arbor is provided with 2～3 wing blades (2) and 2～3 spirality S type blades (3), spirality S type blade is arranged on the wing blades bottom, and the rotating diameter (9) of spirality S type blade is 1: 3～7 with equatorial diameter (5) ratio of wing blades.
2, combined upright shaft wind motor according to claim 1 is characterized in that: described wing blades 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 combined upright shaft wind motor according to claim 1 is characterized in that: the spiral angle of described spirality S type blade is 90 °～360 °, and described wing blades constitutes the Φ font.
4, according to claim 1,2 or 3 described combined upright shaft wind motors, it is characterized in that: be provided with end cap (4) at the two ends of described spirality S type blade, the internal surface of described spirality S type blade at interval be provided with dividing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200398954U CN201412269Y (en) | 2009-04-24 | 2009-04-24 | Combination type vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200398954U CN201412269Y (en) | 2009-04-24 | 2009-04-24 | Combination type vertical axis wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412269Y true CN201412269Y (en) | 2010-02-24 |
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ID=41714153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200398954U Expired - Fee Related CN201412269Y (en) | 2009-04-24 | 2009-04-24 | Combination type vertical axis wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412269Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-04-24 CN CN2009200398954U patent/CN201412269Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20130424 |