Multi-layer staggered phi-type wind turbine

Abstract

The invention discloses a multi-layer staggered phi-type wind turbine blade structure. A wind turbine shaft and a plurality of layers of curved blade groups with cross sections in shapes of airfoils are included, the multiple layers of curved blade groups are fixed on the wind turbine shaft in an inside-and-outside layering manner, each layer of curved blade group includes a plurality of curved blades, each curved blade is a phi-type fan blade with the upper and lower ends fixed to the wind turbine shaft and the middle part bent outwards, and the curved blades on the inner layers and the curved blades on the outer layers are arranged on the wind turbine shaft by a circle in the annular direction in a manner of staggering by a certain angle. The blade structure can effectively improve the wind capture ability and improves the self-starting performance, and the positions, where all layers of the wind turbine blade structures are fixed, of the wind turbine shaft are symmetrically distributed, so that the integrity of the structure is enhanced, the buckling stability of the wind turbine shaft is improved, the wind energy using rate is improved, the curved blades are fixed to the wind turbine shaft through bolt sleeves, installation and removal of the inner layer wind turbine blades are easy and convenient to achieve, and maintenance is convenient to achieve.

Description

technical field [0001] The invention belongs to the field of vertical-axis wind power generators, and in particular relates to a lift-type vertical-axis wind power machine in which curved blades of wind power machines with different radii are arranged according to certain rules. Background technique [0002] With the deepening of energy supply problems, wind energy, as an ideal renewable clean energy, has attracted widespread attention. Currently used wind power generators mainly include horizontal axis wind power generators and vertical axis wind power generators. Compared with horizontal-axis wind turbines, vertical-axis wind turbines have the advantages of good safety, low noise, easy installation and low maintenance costs, and have broad application prospects in urban energy-saving and environmental protection construction. [0003] The traditional φ-type lift wind turbine can have a better wind energy capture ability at a suitable wind speed, but it is difficult to sta...

AI Technical Summary

Problems solved by technology

[0003] The traditional φ-type lift wind turbine can have a better wind energy capture ability at a suitable wind speed, but it is difficult to start at a lower wind speed, and in some cases the wind turbine is not easy to start

This will affect the promotion and use of curved blade vertical axis wind turbines

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