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Vortex-induced vibration suppression device, blade assembly and wind turbine generator

A vortex-induced vibration and suppression device technology, which is applied in the fields of vortex-induced vibration suppression devices, blade components and wind turbines, can solve problems such as vortex-induced vibration, damage, and easy resonance of blades, so as to alleviate resonance, not easy to resonate, and easy to wear The effect of taking off

Pending Publication Date: 2022-07-01
GUODIAN UNITED POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing wind turbines are hoisted or shut down, vortices often appear when the air flows through the blades, and vortex-induced vibration may occur. When the vortex separation frequency on the blades is close to the natural frequency of the blades, the blades are prone to resonance. When the swing is severe, damage will occur

Method used

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  • Vortex-induced vibration suppression device, blade assembly and wind turbine generator
  • Vortex-induced vibration suppression device, blade assembly and wind turbine generator
  • Vortex-induced vibration suppression device, blade assembly and wind turbine generator

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Embodiment Construction

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0037] see figure 1 and figure 2 , this embodiment provides a vortex-induced vibration suppression device, which includes a spoiler cover 100, the cross-sectional area of ​​the spoiler cover 100 gradually decreases from one end to the other end, and the spoiler cover 100 is used to wrap around the blade Tip portion 410 of 400 .

[0038] The spoile...

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Abstract

The invention relates to the technical field of wind turbine generators, in particular to a vortex-induced vibration suppression device, a blade assembly and a wind turbine generator. The vortex-induced vibration suppression device comprises a turbulent flow sleeve, the cross sectional area of the turbulent flow sleeve is gradually reduced from one end to the other end, and the turbulent flow sleeve is used for wrapping the tip of the blade. The blade assembly comprises the vortex-induced vibration suppression device. The wind turbine generator comprises the blade assembly. According to the vortex-induced vibration suppression device, the blade assembly and the wind turbine generator provided by the invention, the problem of resonance of the blade caused by vortex-induced vibration can be relieved to a great extent, so that the blade is not easy to damage due to serious swinging; in addition, the turbulent flow sleeve is convenient to put on and take off.

Description

technical field [0001] The invention relates to the technical field of wind turbines, in particular to a vortex-induced vibration suppression device, a blade assembly and a wind turbine. Background technique [0002] A wind turbine is a device that uses natural wind to drive blades to rotate and generate electricity to convert wind energy into electrical energy. [0003] When the existing wind turbine is hoisted or stopped, vortices often appear when the air flows through the blades, and vortex-induced vibration may occur. When the separation frequency of the vortices on the blades is close to the natural frequency of the blades, the blades are prone to resonance. When the swing is severe, damage can occur. [0004] To sum up, how to overcome the above-mentioned defects of the blades of the existing wind turbines is a technical problem to be solved urgently by those skilled in the art. SUMMARY OF THE INVENTION [0005] The purpose of the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/00F03D17/00F03D1/06
CPCF03D80/00F03D1/0675F03D17/00
Inventor 王小虎
Owner GUODIAN UNITED POWER TECH
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