Accurate in-position mounting method of wind power generation large-elevation-angle impeller

Abstract

The invention discloses an accurate in-position mounting method of a wind power generation large-elevation-angle impeller. The method comprises the following steps that three paddles are mounted on ahub; according to the wind conditions and fan impeller parameters, through paddle change operation, the lower paddle is adjusted to the wind curtailment position, the stress conditions of the two paddles on the upper portion are equal, balance is kept, and no deflection happens; the fan impeller is lifted to the position in butt joint with a fan main engine through a lifting tool; secondary paddlechanging is carried out, the angles of the two paddles son the upper portion are finely adjusted, and therefore the upper elevation angle of the fan impeller conforms to that of the fan main engine;after butt joint and locating, the fan impeller and the fan main engine are connected together, and mounting is completed. By means of the method, the paddle angles can be dynamically adjusted according to instant wind speeds, so that the fan impeller does not deflect, rapid butt joint and mounting of the fan impeller and the fan main engine are achieved, and the method has the advantages of beingsimple in step, high in efficiency and high in safety.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a method for accurately installing an impeller with a large elevation angle for wind power generation. Background technique [0002] With the development of wind power technology, blade wind capture technology is changing with each passing day, and the structure of wind turbine tower and fuselage is increasingly optimized. Domestic wind turbine manufacturers have gradually developed semi-direct drive high-power wind turbines with large upper elevation angle; During the actual fan installation process, tools and tooling cannot meet the impeller docking requirements. The practice of the Shandong Zhanhua Wind Power Project has proved that using conventional docking technology, the impeller docking time lasts for about 5 hours. The installation is risky. [0003] Therefore, with the current impeller butt joint installation method, there are technical problems...

AI Technical Summary

Problems solved by technology

[0002] With the development of wind power technology, blade wind capture technology is changing with each passing day, and the structure of wind turbine tower and fuselage is increasingly optimized. Domestic wind turbine manufacturers have gradually developed semi-direct drive high-power wind turbines with large upper elevation angle; During the actual fan installation process, tools and tooling cannot meet the impeller docking requirements. The practice of the Shandong Zhanhua Wind Power Project has proved that using conventional docking technology, the impeller docking time lasts for about 5 hours. Risky installation

[0003] Therefore, with the current impeller butt joint installation method, there are technical problems such as difficult installation, long time consumption and high risk