A wind turbine blade tip extension device and method

Abstract

The invention relates to a wind turbine vane apex extending device and method. By means of excising an apex section of a wind turbine vane, only a main body section of the vane is saved, an apex extension section provided with axial grooves is connected with the main body section of the vane in a sleeving manner entirely through a lifting tool, after the apex extension section and the main body section of the vane are bond together, a pressurizing tool is arranged on the outer surface of the apex extension section, a binding section is pressed by the pressurizing tool, and the redundant binding agent spilling from the axial grooves is scraped off. By means of arranging the multiple grooves, the plentitude condition of the binding agent in the binding section is easy to monitor; the redundant binding agent is facilitated to be squeezed out by the pressurizing tool through the multiple axial grooves after the vane and an apex are bond together, and thus the binding thickness is guaranteed, the connecting quality is improved; when material fatigue of an adhesive occurs, a crack meets the edges of the axial grooves, the stress cannot be transmitted, and the crack cannot expand further. According to the wind turbine vane apex extending device and method, existing wind turbine vanes are reformed, the wind turbine vane apex extending method is adopted, the construction efficiency is convenient to improve, and also the product quality can be obviously improved.

Description

technical field [0001] The invention relates to a wind turbine blade lengthening technology, in particular to a wind turbine blade tip extension device and method. Background technique [0002] The power generation efficiency of wind turbines is an important factor considered by each wind farm. How to improve the power generation efficiency of each wind turbine as much as possible is what those skilled in the art need to consider when building a wind farm. There are many factors that affect the power generation efficiency of wind turbines, such as the distribution of wind resources in wind farms, the configuration of wind turbines, and the degree of matching between the parameter settings of wind turbine blades and wind turbines, and so on. [0003] In practical applications, although full consideration has been given to the establishment of wind farms, some wind farms still have the situation that the wind resources do not match the wind turbines, so that the power generati...

AI Technical Summary

Problems solved by technology

Most of the connection between the wind turbine blade and the blade tip extension is realized by bonding. The extension section and the original blade are bonded to the original blade with liquid resin or a low-viscosity adhesive in a form-fitting manner. This modification needs to solve the material brittleness of liquid resin and low-viscosity adhesive

In addition, the quality of the bond cannot be ensured and the use of a vacuum system cannot adequately squeeze viscous materials

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