High-performance ring wing type wind turbine blade

Abstract

The invention discloses a high-performance ring wing type wind turbine blade, and belongs to the technical field of wind power generation. The high-performance ring wing type wind turbine blade is installed on a wind turbine shaft and comprises a ring wing blade body, a blade root and a blade root shaft, wherein the ring wing blade body is provided with a wing type circular ring or a wing type oval ring. By applying the high-performance ring wing type wind turbine blade, the wind energy capture efficiency of the wind turbine blade can be improved, and the phenomenon that air flow sideslips across the ring wing blade body without applying work is prevented from happening; meanwhile, centrifugal force generated when the ring wing blade body runs around the wind turbine shaft is fully utilized and converted to compress the air flow entering the ring so that the air flow can be ejected from the rear edge of the ring after being pressurized, and therefore the centrifugal force is converted into high value-added jet power. According to the high-performance ring wing type wind turbine blade, the ring-shaped structure of the ring wing blade body also can greatly reduce noise and induced drag when a wind wheel runs at a high speed; the high-performance ring wing type wind turbine blade can be applied to a wind turbine of an urban wind power generation street lamp as well as a wind driven generator in a large wind power plant.

Description

technical field [0001] The invention relates to a high-performance ring-wing wind turbine blade, which belongs to the technical field of wind power generation. Background technique [0002] As the world's energy crisis becomes more and more severe, and the public's call for improving the ecological environment is increasing, wind energy is an inexhaustible and inexhaustible energy source. As a clean and renewable energy source, wind energy is increasingly popular in various countries. government's attention. Wind turbines are the best form of utilizing wind energy. [0003] At present, wind turbines are mainly divided into two categories: horizontal axis wind turbines and vertical axis wind turbines; for a long time, the academic circles have agreed that vertical axis wind turbines have better stability and can receive wind in a 360° direction. The wind energy capture efficiency of the vertical axis wind turbine is higher than that of the vertical axis wind turbine. Combin...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to improve the structure of the blades of the wind turbine, increase the wind energy capture efficiency of the blades of the wind turbine, and through the application of the present invention, the blades of the wind turbine will not have the problem that the airflow will slide sideways and pass without doing work. Noise pollution of wind turbine blades during high-speed operation, thereby improving the utilization rate of wind energy and improving the quality of wind energy utilization

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