Title:
BLADE SWINGING TYPE FLOW GUIDING VERTICAL AXIS WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2021/017033
Kind Code:
A1
Abstract:
A blade swinging type flow guiding vertical axis wind turbine. A stator and a rotor of the flow guiding type vertical axis wind turbine using the blade swinging type each comprise an upper support (7, 1), a lower support (8, 2), blades (9, 3), and blade fixing rod (10, 4); the blade fixing rod (10, 4) is vertically hinged between the upper support (7, 1) and the lower support (8, 2), and a rotor center shaft (5) is fixedly mounted between the upper support (1) and the lower support (2) of the rotor; the blades (9, 3) are mounted on the blade fixing rod (10, 4), and the multiple blades (9, 3) are evenly distributed in a circumferential direction; the blades (9, 3) are rectangular, one long edge of each blade (9, 3) is fixedly connected to the blade fixing rod, the other long edge of each blade (9, 3) is a free edge, and two ends of the free edge of each blade (9, 3) are respectively connected to the upper support (7, 1) and the lower support (8, 2) by means of blade limiting and reset springs (11, 6); the blades of the rotor and the blades of the stator are opposite in rotating direction; the number of the blades of the rotor and the number of the blades of the stator are both 4-16; a mounting angle swing range of the blades of the stator and the mounting angle swing range of the blades of the rotor are both ±30°; the blades of the rotor and the stator all meet the equation that a ratio of the long edges to the short edges is 1:(0.2-0.45). The flow guiding type vertical axis wind turbine using the blade swinging type can effectively improve the starting performance under a low wind speed and effectively improve the wind energy utilization rate.
Inventors:
ZHANG DAYU (CN)
CHENG YIXIN (CN)
MA MINGXU (CN)
HAN YUEXIN (CN)
WU PU (CN)
CHEN YIMIN (CN)
ZHOU LEI (CN)
CHENG YIXIN (CN)
MA MINGXU (CN)
HAN YUEXIN (CN)
WU PU (CN)
CHEN YIMIN (CN)
ZHOU LEI (CN)
Application Number:
PCT/CN2019/100293
Publication Date:
February 04, 2021
Filing Date:
August 13, 2019
Export Citation:
Assignee:
UNIV NORTHEASTERN (CN)
International Classes:
F03D3/04; F03D3/06
Foreign References:
| CN109931214A | 2019-06-25 | |||
| DE102017007957A1 | 2019-03-14 | |||
| CN101260862A | 2008-09-10 | |||
| GB1508796A | 1978-04-26 | |||
| CN101514681A | 2009-08-26 |
Attorney, Agent or Firm:
SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO.,LTD (CN)
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