CN203906177U - Vertical axis wind turbine - Google Patents
Vertical axis wind turbine Download PDFInfo
- Publication number
- CN203906177U CN203906177U CN201420272298.7U CN201420272298U CN203906177U CN 203906177 U CN203906177 U CN 203906177U CN 201420272298 U CN201420272298 U CN 201420272298U CN 203906177 U CN203906177 U CN 203906177U
- Authority
- CN
- China
- Prior art keywords
- wind shield
- wind
- circular arc
- vertical axis
- arc
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
Disclosed is a vertical axis wind turbine. A spindle of the wind turbine is arranged at the center of a base and is perpendicular to the base, four blades are connected with the spindle and uniformly arranged circumferentially, a circumferential wind shield sliding rail is arranged on the base, a fan-shaped circular-arc wind shield covers above the blades, the circular-arc edge of the circular-arc wind shield and the circumferential wind shield sliding rail on the base form a sliding pair, the circle center of the circular-arc wind shield is connected with a wind shield rotating shaft embedded in the spindle, and a wind direction and wind speed sensor is connected at the circle center of the wind shield. Central angle of the fan-shaped circular-arc wind shield is 90 degrees, and each blade is connected with the rotating shaft through an upper fin and a lower fin to form an annular airflow guide passage taking the spindle as a center. The vertical axis wind turbine is high in pneumatic performance, simple in processing technique and manufacturing-material saving, and total torque and wind energy utilization rate are increased remarkably.
Description
Technical field
The utility model relates to a kind of wind energy conversion system, particularly a kind of vertical axis windmill.
Background technique
Wind energy conversion system is the power source of wind-power generating system, and it is mechanical energy by wind energy transformation, and then pushing generator generating.For middle-size and small-size in net type power generation system, the most widely used vertical axis windmill that is still.In the time that wind impacts traditional vertical axis wind turbine rotor, what be subject at the recessed blade of a side of its windward side is effective thrust, what be subject at opposite side projection blade is the resistance of wind, the real effective power of making a concerted effort to be only promotion wind wheel rotation work done of above-mentioned two kinds of power.Facts have proved: due to the existence of projection blade-side windage, greatly reduce effective wind-engaging performance of vertical axis impeller.
Model utility content
The utility model discloses a kind of vertical axis windmill, its objective is and overcome in prior art, the deficiency that on vertical axis windmill windward side, the existence of a lateral process blade windage makes vertical axis windmill greatly reduce the utilization ratio of wind energy, the utility model utilizes wind shield to have to keep out the wind the principle of effect, design a kind of vertical axis windmill with wind shield, make blade that incoming flow wind can not act directly on projection to reduce reverse rotation power, add the guiding air-flow path forming after wind shield in wind wheel more unobstructed simultaneously, thereby effectively improve the mechanical efficiency of whole vertical axis windmill.
-kind of vertical axis windmill, main shaft is arranged on pedestal center and vertical with pedestal, four blades are connected with main shaft and along circumferential evenly distributed, on pedestal, have circumference wind shield slide rail, above blade, cover a fan-shaped circular arc wind shield, circumference wind shield slide rail on arc-shaped edges and the pedestal of circular arc wind shield forms sliding pair, the wind shield running shaft that the center of circle of circular arc wind shield is nested with main shaft is connected, the circle centre position of wind shield is also connected with wind direction and air velocity transducer simultaneously, described circular arc wind shield central angle is 90, in four described blades, every blade is all connected with running shaft by upper and lower two fins, form the ring-type guiding air-flow path centered by main shaft, the effect of wind transducer is that to make the position of fan-shaped circular arc wind shield remain on wind shield vertical with incoming flow airflow direction near the circular arc tangential line direction of wind regime end, the effect of air velocity transducer is in the time that wind speed exceedes rated wind speed, the position of fan-shaped circular arc wind shield is blocked the wind comes from, prevent that the wind energy conversion system that hypervelocity causes from damaging.
Advantage of the present utility model and good effect are: the air-flow path in fan-shaped circular arc wind shield guide blades is more unobstructed, and aeroperformance is good, and total torque and wind energy utilization increase significantly, and processing technology is simple, save manufactured materials.
Brief description of the drawings
Fig. 1 is the vertical axis windmill plan structure figure of the utility model with wind shield.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
-kind of vertical axis windmill, as shown in Figure 1, main shaft 1 is arranged on the center of pedestal 6 and vertical with pedestal, and four blades 2 are connected with main shaft 1 and along circumferential evenly distributed, every blade is all connected with running shaft by upper and lower two fins 4, forms the ring-type guiding air-flow path centered by main shaft.On pedestal 6, have circumferential wind shield slide rail 7, above blade 2, cover a fan-shaped circular arc wind shield 3, circular arc wind shield central angle is 90 degree, circumference wind shield slide rail 7 on the arc-shaped edges of circular arc wind shield 3 and pedestal 6 forms sliding pair, the wind shield running shaft 5 that the center of circle of circular arc wind shield 3 is nested with main shaft 1 is connected, the circle centre position of circular arc wind shield 3 is also connected with wind direction and air velocity transducer 8 simultaneously, the effect of wind direction and air velocity transducer 8 is to control circular arc wind shield, make its position remain on wind shield when and wind speed vertical with incoming flow airflow direction exceedes rated wind speed near the circular arc tangential line direction of wind regime end, the position of fan-shaped circular arc wind shield is blocked the wind comes from, prevent that the wind energy conversion system that hypervelocity causes from damaging, when airflow function is during at the vertical axis windmill with wind shield, circular arc wind shield is directed away the air-flow that acts on the blade-side that produces resistance, significantly reduce the resisting moment that blade effectively rotates that is unfavorable for causing because directly impacted by air-flow, flow into the ring-type guiding air-flow path in blade, air-flow smoothness is side by side except suppressing vortex arising, thereby the wind energy utilization efficiency of whole blade is largely increased.
Above-described embodiment is not limited to the utility model, and every employing analog structure of the present utility model and similar variation thereof, all should list protection domain of the present utility model in.
Claims (1)
1. a vertical axis windmill, it is characterized in that: main shaft is arranged on pedestal center and vertical with pedestal, four blades are connected with main shaft and along circumferential evenly distributed, on pedestal, have circumference wind shield slide rail, above blade, cover a fan-shaped circular arc wind shield, circumference wind shield slide rail on arc-shaped edges and the pedestal of circular arc wind shield forms sliding pair, the wind shield running shaft that the center of circle of circular arc wind shield is nested with main shaft is connected, the circle centre position of fan-shaped circular arc wind shield is also connected with wind direction and air velocity transducer simultaneously, the central angle of described fan-shaped circular arc is 90, in four described blades, every blade is all connected with running shaft by upper and lower two fins, form the ring-type guiding air-flow path centered by main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272298.7U CN203906177U (en) | 2014-05-24 | 2014-05-24 | Vertical axis wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420272298.7U CN203906177U (en) | 2014-05-24 | 2014-05-24 | Vertical axis wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906177U true CN203906177U (en) | 2014-10-29 |
Family
ID=51780464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420272298.7U Expired - Fee Related CN203906177U (en) | 2014-05-24 | 2014-05-24 | Vertical axis wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016085858A1 (en) * | 2014-11-26 | 2016-06-02 | Phillips Roger Gordon | High-efficiency wind generator |
| CN112555092A (en) * | 2020-12-03 | 2021-03-26 | 无锡职业技术学院 | Wind-following rotating fan blade and array type tree-shaped wind power generation device |
-
2014
- 2014-05-24 CN CN201420272298.7U patent/CN203906177U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016085858A1 (en) * | 2014-11-26 | 2016-06-02 | Phillips Roger Gordon | High-efficiency wind generator |
| CN112555092A (en) * | 2020-12-03 | 2021-03-26 | 无锡职业技术学院 | Wind-following rotating fan blade and array type tree-shaped wind power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150524 |
|
| EXPY | Termination of patent right or utility model |