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Blade system of vertical axis wind turbine

A wind turbine, vertical axis technology, applied in the control of wind turbines, wind turbines, wind turbines at right angles to the wind direction, etc., to achieve the effects of strong wind resistance, convenient transportation and space saving

Inactive Publication Date: 2010-11-17
魏彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fan blade system of this H-type wind power generator has the above-mentioned advantages, there are still many things to be improved in terms of the speed of rotation of the wind rotor and the power generation curve.

Method used

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  • Blade system of vertical axis wind turbine
  • Blade system of vertical axis wind turbine
  • Blade system of vertical axis wind turbine

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Embodiment Construction

[0028] See figure 1 , it is a blade system of a vertical axis wind power generator, including two blades 1, above the horizontal balance axis 2 (dotted line in the figure) of each blade 1 is provided with a balance axis 2 parallel to the horizontal direction The fan blade shaft 3, the horizontal balance axis 2 in the present invention is an imaginary line, which assumes the horizontal direction of the horizontal balance axis 2, and the fan blade 1 just balances up and down. In the windless state, the fan blades can stand vertically along the fan blade shaft 3; the distance H between the fan blade shaft 3 and the horizontal balance axis 2 in the present invention should satisfy the upper and lower force difference of the fan blade shaft 3 ( In this implementation, it is the gravity difference. Of course, other forces can be artificially set, such as torsional force, pulling force and other forces. Examples of such forces are described later), so that the wind blade 1 can be blo...

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Abstract

The invention relates to a blade system of a vertical axis wind turbine, comprising at least two blades. A blade shaft is arranged above a balance axis in the horizontal direction of each blade; the distance between the blade shaft and the balance axis in the horizontal direction is required to meet the requirement of difference of upper and lower forces of the blade shaft so that the blades are quickly changed into a vertical condition from a horizontal condition under the action of force difference in the absence of wind; the blades rotate around the blade shaft in the presence of wind; one end of the blade shaft is fixedly connected with a wind wheel shaft; the blades are movably connected with the blade shaft; the wind shield surfaces of the blades and the axis of the blade shaft are in the same plane; and the blade shaft is provided with a limiter which is used for limiting the blades to only rotate horizontally in an unidirectional mode under the vertical condition. The invention has the advantages of simple structure, easy maintenance, low cost, light weight, low requirement for a wind tower, and the like. The invention is suitable for large, medium and small wind turbines, can be disassembled for transportation, can be used for manufacturing ultralarge blades to improve the power capacity of a single wind turbine, has no requirement for wind direction and is adaptive to wind direction.

Description

technical field [0001] The invention relates to a fan blade system of a vertical axis wind power generator. Background technique [0002] The blades of the earliest vertical axis wind turbines adopt the structure of circular double blades, which is the so-called Φ-type or Darrieux double blade structure. The blades of this structure are due to their wind receiving area The vertical axis wind turbines with such wind blades have not been vigorously developed, and the reason for this is that the power generation effect is not ideal all the time. [0003] In recent years, it has been proposed to use H-shaped wind blades to replace the traditional arc-shaped double-bladed structure. The wind blades of H-shaped vertical axis wind turbines use the principle of air tunnel mechanics to simulate the wind tunnel for vertical axis rotation. The blade adopts the shape of an aircraft wing, and when the wind wheel rotates, it will not be affected by the deformation and change of efficienc...

Claims

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Application Information

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IPC IPC(8): F03D3/06F03D7/06
CPCY02E10/74Y02P70/50
Inventor 魏彬
Owner 魏彬
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