Multilayer wind power generation sail

Abstract

The invention discloses a multilayer wind power generation sail which comprises a sail base frame and a sail shaft, wherein the sail shaft is connected with a plurality of vertically arranged sail blades which enables the sail shaft to rotate along the same direction; the sail base frame comprises a body transom capable of being supported on rigid ground; a supporting seat is fixedly connected above the body transom; the sail shaft is rotatably supported on the supporting seat; the lower end of the sail shaft is exposed at the lower end face of the supporting seat so as to be coaxially connected with the input end of a generator; the sail blades comprise a bottom-layer sail blade group and at least one upper-layer blade group; the bottom-layer sail blade group comprises a plurality of bottom-layer sail blades and the upper-layer sail blade group comprises a plurality of upper-layer sail blades; the bottom-layer sail blade group and the upper-layer sail blade group are arranged in a dislocation mode along the height direction; and the bottom-layer sail blades are movably supported on the rigid ground. The invention has the following beneficial effects: the wind power resources, the existing material and manufacturing process are fully utilized; and the multilayer wind power generation sail has the advantages of simple structure, high mechanical efficiency, safe use and long service life, and is suitable for megawatt-class large-scale and super-huge type wind driven generators.

Description

technical field [0001] The invention relates to a sail for wind power generation of a wind power generation device, in particular to a vertical multilayer wind power generation sail for vertical wind power generation. Background technique [0002] Wind energy is a kind of clean energy. In today's increasingly tense world energy sources, wind energy has attracted more and more attention. The wind rotor is an important part of the wind turbine. Whether the structure of the wind rotor is reasonable or not is directly related to the operating efficiency of the wind turbine. At present, the common wind turbine wind rotor is a propeller-type wind rotor composed of three or more blades. The wind rotor and the main body of the generator constitute the generator head, which is installed on the wind turbine tower in an approximately vertical manner. , due to the small area of ​​the wind rotor with this structure, the power generation of the generator is limited to a certain extent. ...

AI Technical Summary

Problems solved by technology

Although this technical solution solves the problems that the existing wing-type wind turbines are difficult to manufacture and the maximum power generation is difficult to further increase, it not only has the disadvantages of complex structure and high manufacturing cost due to the installation of a windshield control shell, but at the same time, Because the blades are fixedly connected with the columns, while the sails in the wind flow channel are pushed by the wind force, the sails on the opposite side will also be affected by part of the wind force and produce a thrust in the opposite direction to the columns, resulting in a waste of wind power; There is only one set in the vertical direction. Due to the limitation of existing materials and manufacturing level, the size of the sail and the power generation are subject to certain restrictions, which will also cause the wind power not to be fully utilized.

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