CN203476602U - Small combined vertical axis wind turbine - Google Patents
Small combined vertical axis wind turbine Download PDFInfo
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- CN203476602U CN203476602U CN201320403936.XU CN201320403936U CN203476602U CN 203476602 U CN203476602 U CN 203476602U CN 201320403936 U CN201320403936 U CN 201320403936U CN 203476602 U CN203476602 U CN 203476602U
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- vertical axis
- combined vertical
- wind wheel
- rotating shaft
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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 small combined vertical axis wind turbine. The small combined vertical axis wind turbine comprises a rotating shaft, a spiral S-shaped wind wheel, which is spirally coiled on the rotating shaft, and three cover boards, which are respectively arranged on the upper part, the middle part and the lower part of the rotating shaft and are used for fixing the spiral S-shaped wind wheel, wherein transverse supporting fixing seats are respectively arranged on the cover board on the upper part of the rotating shaft and the cover board on the lower part of the rotating shaft, multiple pairs of transverse support rods, which are parallel to each other, are arranged on the two transverse supporting fixing seats, the tail ends of the pair of transverse support rods are connected to a straight blade, and wing tip end plates are respectively arranged on two ends of the straight blade. The small combined vertical axis wind turbine has the characteristics of simple structure, reliable operation, high space utilization rate, high rotor power coefficient, small running resistance and good self-starting performance.
Description
Technical field
The utility model belongs to technical field of wind power generation, is specifically related to a kind of wind machine device that is mechanical energy by wind energy transformation.
Background technique
The device that wind energy conversion system is is mechanical energy by wind energy transformation is most important part in wind-power electricity generation.According to the difference of rotor shaft, wind energy conversion system can be divided into horizontal-shaft wind turbine and vertical axis windmill.Compare with horizontal-shaft wind turbine, lift vertical shaft wind energy conversion system (being Da Lie wind energy conversion system) except wind energy utilization quite, also have symmetrical configuration, good rigidity, unmatchful wind apparatus and to windage loss lose, the advantage such as noise is low.But lift vertical shaft wind energy conversion system self-startup ability is poor, need to forms combined wind machine in conjunction with the strong resistance-type vertical axis wind turbine of self-startup ability and use.Resistance-type vertical axis wind turbine itself has again the shortcoming that tip speed ratio is low, wind energy utilization is low.How in conjunction with lift vertical shaft wind energy conversion system and resistance-type vertical axis wind turbine, to be the key of performance vertical axis windmill advantage.
Notification number is that the Chinese invention patent of CN101846043B discloses a kind of mixed type vertical axis wind driven generator, mainly comprises Da Lie wind wheel, Da Lie wind wheel connecting rod, S type wind wheel, rotating shaft, S type wind wheel automatic closs system and generator.This invention startability comparative superiority, running resistance is little, but has movable agency in system, moves reliability decrease when wind energy conversion system rotating speed is higher, and the complexity of movable structure can cause cost to rise.
Publication number is that the Chinese invention patent of CN101566126A discloses a kind of lift-drag complementary vertical axis wind wheel, mainly comprises rotor shaft, lift-type blade and spirality resistance type blade.The advantage of this invention comprises:
1) adopt the lifting wind wheel of egg beater shape, can realize hugeization;
2) spirality S type wind wheel can overcome prismatic blade S type wind wheel and only at the part angle of attack, has the shortcoming of startup ability, has promoted startability;
3) resistance type rotor diameter and lifting wind wheel equatorial diameter ratio are 1:3～7, make wind wheel when normal operation, resistance type blade and lift-type blade all have preferably tip speed ratio, and the positive moment of two kinds of blade generations is all greater than resisting moment, has evaded the problem that resistance type blade can not run up.
But, this invention has the following disadvantages equally:
1) egg beater shape lifting wind wheel, i.e. Φ type wind wheel, its advantage that can overcome centrifugal force load is in small-sized wind power generator and not obvious;
2) lost above-mentioned advantage, make its space availability ratio low, difficult design is (because the turning radius of each foline on blade is different, in order to promote wind energy utilization, the aerofoil profile that requires each foline is also different) shortcoming become obviously, make it not be suitable for small-sized wind power generator;
3) resistance type blade twist angle is the arbitrary value between 90 °～360 °, make wind wheel when different corner, the area of concave-blade is different with the wind, and the thrust that blade is subject to wind is also different, do not reach best startability, during normal operation simultaneously, can produce torque fluctuations yet.
Model utility content
The purpose of this utility model is to provide the small combined vertical axis windmill that a kind of running resistance is little, self-starting performance is good.
For achieving the above object, technological scheme that the utility model adopts is as follows:
A kind of small combined vertical axis windmill, this wind energy conversion system comprises rotating shaft, spiral winding is arranged on the spirality S type wind wheel in described rotating shaft and is separately positioned on the upper bottom of described rotating shaft for three cover plates of fixing described spirality S type wind wheel, on the cover plate that the cover plate arranging on the top of described rotating shaft and bottom arrange, be respectively arranged with a cross-brace fixed base, on described two cross-brace fixed bases, be provided with the multipair transverse support bar being parallel to each other, end in the described two a pair of transverse support bar that are parallel to each other is connected with a prismatic blade, at described straight-vaned two ends, be respectively arranged with a wing tip end plate.
Further, described spirality S type wind wheel comprises two blades.
Further, described straight-vaned quantity is 3-5 sheet.
Further, the rotating diameter of described spirality S type wind wheel and the ratio of described straight-vaned rotating diameter equal the ratio of both optimum tip-speed ratios.
Further, the blade of described spirality S type wind wheel is resistance type blade, and described prismatic blade is lift-type blade.
Further, the blade twist angle of described spirality S type wind wheel is the integral multiple of 180 °.
Further, the cross section of described transverse support bar is symmetrical airfoil, and has an angle between the aerofoil profile string of a musical instrument of the cross section of this transverse support bar and the plane of rotation of cross-brace fixed base.
Further, described corner dimension is 2～6 degree.
That the utility model beneficial effect mainly comprises is simple in structure, reliable, space availability ratio is high, power coefficient is high, running resistance is little and self-starting performance is good, is embodied in:
1, whole wind energy conversion system is as a whole, there is no moving element, is directly installed on the rotor shaft of generator, simple in structure, reliable;
2, the rotating diameter of spirality S type wind wheel and the ratio of straight-vaned rotating diameter equal the ratio of both optimum tip-speed ratios, when wind energy conversion system normally moves, the net torque of two kinds of wind wheels be on the occasion of;
3, the torsion angle of the blade of spirality S type wind wheel is the integral multiple of 180 °, and the thrust that makes wind wheel be subject to wind in any angle is identical, and startability is good, and torque fluctuations is also little while normally moving;
4, respectively there is a wing tip end plate at prismatic blade two ends, can reduce the impact in blade tip whirlpool, improve the power coefficient of wind energy conversion system;
5, transverse support bar has certain aerofoil profile, and in its rotary course, there is certain angle of attack, can greatly reduce the resistance that in normal course of operation, cross-brace produces, and produce a lift, balance out part wind energy conversion system gravity, thereby reduce the surface friction drag of running middle (center) bearing.
Accompanying drawing explanation
The picture that this accompanying drawing explanation provides is used for auxiliary to further understanding of the present utility model, forms the application's a part, does not form to improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the partial structurtes schematic diagram of the utility model spirality S type wind wheel;
Fig. 3 is the relative position relation structural representation of the utility model spirality S type wind wheel, rotating shaft and cover plate;
Fig. 4 is the utility model prismatic blade and wing tip end plate partial structurtes schematic diagram;
Fig. 5 is the cross section of the utility model transverse support bar projection perspective view on cross-brace fixed base.
In figure:
1, generator 2, rotating shaft
3, spirality S type wind wheel 4, cover plate
5, cross-brace fixed base 6, transverse support bar
7, prismatic blade 8, wing tip end plate
Embodiment
In order to understand fully object of the present invention, feature and effect, below with reference to accompanying drawing and specific embodiment, the technique effect of design of the present invention, concrete structure and generation is described further.
As Figure 1-4, the present embodiment discloses a kind of small combined vertical axis windmill, this wind energy conversion system comprises rotating shaft 2, spiral winding is arranged on the spirality S type wind wheel 3 in described rotating shaft 2 and is separately positioned on the upper bottom of described rotating shaft 2 for three cover plates 4 of fixing described spirality S type wind wheel 3, on the cover plate 4 that the cover plate 4 arranging on the top of described rotating shaft 2 and bottom arrange, be respectively arranged with a cross-brace fixed base 5, on described two cross-brace fixed bases 5, be provided with in the multipair transverse support bar 6(figure being parallel to each other only signal and drawn the situation of 3 pairs, do not represent model utility is counted to quantitative limitation, the utility model can also be 2 pairs, 3 pairs and above quantity), end in the described two a pair of transverse support bar 6 that are parallel to each other is connected with a prismatic blade 7, at described straight-vaned two ends, be respectively arranged with a wing tip end plate 8.The whole wind energy conversion system of the present embodiment is as a whole, there is no moving element, is directly installed on the rotor shaft of generator, simple in structure, reliable, and running resistance is little and self-starting performance is good.
As shown in Figure 1, in order further to reach effect simple in structure, reliable, that space availability ratio is high, power coefficient is high and running resistance is little, described spirality S type wind wheel comprises two blades, and described straight-vaned quantity is 3-5 sheet, and this straight-vaned quantity is 3-5 sheet.
In order to improve power coefficient, the rotating diameter of described spirality S type wind wheel and the ratio of described straight-vaned rotating diameter equal the ratio of both optimum tip-speed ratios.Rotating diameter: refer on spiral S type wind wheel or prismatic blade, rotate around the shaft the diameter of formed track apart from farthest any of rotating shaft.Tip speed ratio: refer on spiral S type wind wheel or prismatic blade the linear velocity of rotating around the shaft apart from farthest any of rotating shaft and the ratio of wind speed.Under a certain wind speed, the rotating speed of wind energy conversion system different (they being that tip speed ratio is different), and the power of its output is different.In the acceptable operating range of wind-driven generator, there is a tip speed ratio, can make wind energy conversion system under any wind speed, can export power maximum under current wind speed, this tip speed ratio is called optimum tip-speed ratio.Now, when wind energy conversion system normally moves, the net torque of two kinds of wind wheels be on the occasion of.
Wherein, the blade of described spirality S type wind wheel is resistance type blade, and described prismatic blade is lift-type blade.The self-starting performance of resistance type blade is good, and when having wind, oneself starts rotation at an easy rate, but rotating speed raises, rear its power coefficient is low, and output power is little.The self-starting poor performance of lift-type blade, is not easy while having wind to rotate from static beginning, once but rotating speed rising, its power coefficient is higher, and output power is large.Both combinations, can make up the other side's shortcoming, performance advantage separately.
Wherein, the blade twist angle of described spirality S type wind wheel is the integral multiple of 180 °.As Fig. 3, the cross section semicircular in shape of two blades of spirality S type wind wheel, two semicircles form S shape.Blade is extended upward by bottom with identical sectional shape, and in extension process, two semi-circular cross-section are reversed equably around the shaft, and finally arriving top is that the angle of reversing is torsion angle (Fig. 2).Such as turning round, turn around, the angle of torsion is 360 °, turns round and turns around half, is 540 °.
Wherein, as shown in Figure 5, the cross section of described transverse support bar is symmetrical airfoil, and has an angle α between the aerofoil profile string of a musical instrument of the cross section of this transverse support bar and the plane of rotation of cross-brace fixed base, and described corner dimension is 2～6 degree.Like this, in wind energy conversion system rotary course, between the aerofoil profile string of a musical instrument of transverse support bar cross section and the airspeed of incoming flow, just there is an angle α, Here it is the angle of attack.Between symmetrical airfoil and the airspeed of incoming flow, have the angle of attack, symmetrical airfoil will produce lift.
More than describe preferred embodiment of the present invention in detail, should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technician in the art according to the present invention design on prior art basis by logical analysis, reasoning or according to the available technological scheme of limited experiment, all should be among the determined protection domain by these claims.
Claims (8)
1. a small combined vertical axis windmill, it is characterized in that: this wind energy conversion system comprises rotating shaft, spiral winding is arranged on the spirality S type wind wheel in described rotating shaft and is separately positioned on the upper bottom of described rotating shaft for three cover plates of fixing described spirality S type wind wheel, on the cover plate that the cover plate arranging on the top of described rotating shaft and bottom arrange, be respectively arranged with a cross-brace fixed base, on described two cross-brace fixed bases, be provided with the multipair transverse support bar being parallel to each other, end in the described two a pair of transverse support bar that are parallel to each other is connected with a prismatic blade, at described straight-vaned two ends, be respectively arranged with a wing tip end plate.
2. small combined vertical axis windmill according to claim 1, is characterized in that:
Described spirality S type wind wheel comprises two blades.
3. small combined vertical axis windmill according to claim 1, is characterized in that:
Described straight-vaned quantity is 3-5 sheet.
4. small combined vertical axis windmill according to claim 1, is characterized in that:
The rotating diameter of described spirality S type wind wheel and the ratio of described straight-vaned rotating diameter equal the ratio of both optimum tip-speed ratios.
5. small combined vertical axis windmill according to claim 1, is characterized in that:
The blade of described spirality S type wind wheel is resistance type blade, and described prismatic blade is lift-type blade.
6. small combined vertical axis windmill according to claim 1, is characterized in that:
The blade twist angle of described spirality S type wind wheel is the integral multiple of 180 °.
7. small combined vertical axis windmill according to claim 1, is characterized in that:
The cross section of described transverse support bar is symmetrical airfoil, and has an angle between the aerofoil profile string of a musical instrument of the cross section of this transverse support bar and the plane of rotation of cross-brace fixed base.
8. small combined vertical axis windmill according to claim 7, is characterized in that:
Described corner dimension is 2～6 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403936.XU CN203476602U (en) | 2013-07-08 | 2013-07-08 | Small combined vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320403936.XU CN203476602U (en) | 2013-07-08 | 2013-07-08 | Small combined vertical axis wind turbine |
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| Publication Number | Publication Date |
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| CN203476602U true CN203476602U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320403936.XU Expired - Fee Related CN203476602U (en) | 2013-07-08 | 2013-07-08 | Small combined vertical axis wind turbine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653405A (en) * | 2015-02-12 | 2015-05-27 | 江苏大学 | Approaching airstream energy recovery device of electric automobile |
| CN104763592A (en) * | 2015-03-24 | 2015-07-08 | 南京宇能新能源科技有限公司 | Electric energy parallel output type vertical axis wind power generation system with axial power generators |
| CN105156273A (en) * | 2015-08-11 | 2015-12-16 | 王平利 | Non-stator high-frequency and low-rotating-speed wind driven generator with electron core |
| CN106150919A (en) * | 2016-08-29 | 2016-11-23 | 嘉兴国电通新能源科技有限公司 | A kind of twin shaft H type vertical shaft fan |
| CN106936206A (en) * | 2015-12-31 | 2017-07-07 | 南京宇能新能源科技有限公司 | New energy intelligent navigation mark beacon |
| CN107355341A (en) * | 2017-08-16 | 2017-11-17 | 广州市香港科大霍英东研究院 | One kind rises resistance mating type vertical axis windmill |
| CN108397332A (en) * | 2018-02-09 | 2018-08-14 | 浙江省交通规划设计研究院 | A kind of vertical pivot birotor tidal current energy water turbine installing end plate additional |
| CN108506160A (en) * | 2017-02-24 | 2018-09-07 | 关隆股份有限公司 | Fluid-operated power plant |
| CN110735763A (en) * | 2019-10-31 | 2020-01-31 | 祁家琦 | vertical axis wind-driven generator |
| CN114198260A (en) * | 2021-12-14 | 2022-03-18 | 西南石油大学 | Efficient vertical axis switch reluctance breeze generator |
-
2013
- 2013-07-08 CN CN201320403936.XU patent/CN203476602U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653405A (en) * | 2015-02-12 | 2015-05-27 | 江苏大学 | Approaching airstream energy recovery device of electric automobile |
| CN104763592A (en) * | 2015-03-24 | 2015-07-08 | 南京宇能新能源科技有限公司 | Electric energy parallel output type vertical axis wind power generation system with axial power generators |
| CN105156273A (en) * | 2015-08-11 | 2015-12-16 | 王平利 | Non-stator high-frequency and low-rotating-speed wind driven generator with electron core |
| CN106936206A (en) * | 2015-12-31 | 2017-07-07 | 南京宇能新能源科技有限公司 | New energy intelligent navigation mark beacon |
| CN106150919A (en) * | 2016-08-29 | 2016-11-23 | 嘉兴国电通新能源科技有限公司 | A kind of twin shaft H type vertical shaft fan |
| CN108506160A (en) * | 2017-02-24 | 2018-09-07 | 关隆股份有限公司 | Fluid-operated power plant |
| CN107355341A (en) * | 2017-08-16 | 2017-11-17 | 广州市香港科大霍英东研究院 | One kind rises resistance mating type vertical axis windmill |
| CN108397332A (en) * | 2018-02-09 | 2018-08-14 | 浙江省交通规划设计研究院 | A kind of vertical pivot birotor tidal current energy water turbine installing end plate additional |
| CN110735763A (en) * | 2019-10-31 | 2020-01-31 | 祁家琦 | vertical axis wind-driven generator |
| CN114198260A (en) * | 2021-12-14 | 2022-03-18 | 西南石油大学 | Efficient vertical axis switch reluctance breeze generator |
| CN114198260B (en) * | 2021-12-14 | 2024-01-16 | 西南石油大学 | High-efficiency vertical axis switch reluctance breeze generator |
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