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Vertical axis wind power generation device with logarithmic spiral blades

The technology of a wind power generation device and a logarithmic helix is ​​applied in the field of wind power generation devices, which can solve the problems of high vibration and noise, low power coefficient, difficult self-starting, etc. Effect

Active Publication Date: 2022-05-10
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that the vertical axis wind power generation device is difficult to self-start, has large vibration and noise, low power coefficient and great impact on the environment, the present invention provides A logarithmic helical blade vertical axis wind power generation device, which is simple to start and can absorb vibration in a wide range by utilizing the cubic nonlinearity of the vibration damping device

Method used

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  • Vertical axis wind power generation device with logarithmic spiral blades
  • Vertical axis wind power generation device with logarithmic spiral blades
  • Vertical axis wind power generation device with logarithmic spiral blades

Examples

Experimental program
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Embodiment

[0044] Such as Figure 1-3 A logarithmic helical blade vertical axis wind power generation device shown includes a rotating sleeve 5 that is sleeved on the pillar 1 through a bearing, and a plurality of logarithmic helical blades 4 are installed on the rotating sleeve 5 (this embodiment 6 pieces are set in the center, but it is not limited to this, and the number can be selected according to actual needs), the blade 4 is distributed along the axial torsion angle, and the width of the blade 4 changes from the root to the top: from narrow to wide and then narrow, specifically, the middle part is eccentric The blade 4 in the lower area is the widest, and the root of the blade 4 is fixedly connected with the rotating sleeve 5 through the lower support 6. The lower support 6 can be composed of two flanges with bolts, and holes can be drilled at the base of the blade 4 during production. , use bolts to pass through and clamp between the flanges, the upper part of the blade 4 is fixe...

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PUM

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Abstract

The invention discloses a logarithmic spiral blade vertical axis wind power generation device in the field of wind power generation, which comprises a rotating sleeve sleeved on a support column through a bearing, a plurality of logarithmic spiral blades are mounted on the rotating sleeve, the blades are distributed along an axial torsion angle, and the width of the blades from the root to the top is changed from narrow to wide and then narrow. The roots of the blades are fixedly connected with the rotating sleeve through the lower support, the upper portions of the blades are fixedly connected with the rotating sleeve through the upper support, the bottom of the supporting column is installed on the base, the generator is installed on the base, and the lower end of the rotating sleeve is sleeved with the generator. And vibration can be absorbed in a wide range.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind power generation device. Background technique [0002] With the development of society, people's demand for electricity is increasing, and the entire economy and society need to turn to green and low-carbon in an all-round way. Renewable energy power generation has attracted wide attention as an important part of carbon neutrality in the electric power field. Among them, wind energy is a clean , Renewable, non-polluting energy, is placed high hopes. [0003] At present, considering the structure of wind turbines, there are mainly horizontal axis wind turbines and vertical axis wind turbines. Both types of wind turbines have their own advantages and disadvantages. Horizontal axis wind turbines are more mature in technology and have higher energy efficiency, but they are expensive and larger in size, causing noise and visual pollution; vertical axis wind turbi...

Claims

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Application Information

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IPC IPC(8): F03D9/25F03D80/70F03D80/00F03D3/06F03D13/20F16F15/067
CPCF03D9/25F03D80/70F03D80/00F03D3/005F03D3/062F03D13/20F16F15/067Y02E10/74
Inventor 付士凤李政梁晓玲朱卫军杨华孙振业
Owner YANGZHOU UNIV
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