Wind turbine generator combined type blades and installation method

Abstract

The invention belongs to the technical field of wind turbine generator blades, and particularly relates to wind turbine generator combined type blades and an installation method. Each combined type blade comprises two or more segments of blades, the connection end of each segment of the blades is closed, and web plates of the segment of the blades extend out; web plates corresponding to the connection ends of two adjacent segments of blades are connected with each other through web plate connectors; a plurality of beam cap connectors are arranged between two adjacent web plates to connect the two segments of the blades; a plurality of skin connectors are arranged at the outer sides of the web plates respectively to connect the two segments of the blades; each portion of connection segments of the blades is connected with corresponding segment of the blades through titanium alloy bolts. When installation is conducted, a carbon fiber reinforced layer is paved at the connector position of each segment of the blades, and bolt holes are punched; the two segments of the blades are connected with each other through flange self-lock pins and bolts; finally, the blades are lifted and mounted on a wind turbine generator according to conventional lifting and mounting procedures. By means of the wind turbine generator combined type blades and the installation method, on the premise of not changing blade aerodynamic performance, the segmented manufacture, the segmented transportation and the rapid installation of the blades are convenient to achieve, the sufficient strength and rigidity are guaranteed, and the difficulties and the cost of manufacture and transportation are reduced.

Description

technical field [0001] The invention belongs to the technical field of wind turbine blade design and manufacture, and in particular relates to a wind turbine combined blade and an installation method. Background technique [0002] As the power of horizontal axis wind turbines increases, the length of the blades becomes longer and longer. At present, the blades of 5MW units have exceeded 60 meters, and the blades of more than 100 meters in the future are under development. However, due to the wide distribution of wind farms in my country, remote location, and inconvenient transportation, the transportation of blades has become a restrictive factor for the development of large-scale blade technology. The cost of manufacturing blades near wind farms is high and difficult to implement. The combined blade scheme of manufacturing, segmental transportation and on-site installation is an effective solution to the above problems. Contents of the invention [0003] The purpose of th...

AI Technical Summary

Problems solved by technology

However, due to the wide distribution of wind farms in my country, remote location, and inconvenient transportation, the transportation of blades has become a restrictive factor for the development of large-scale blade technology. The cost of manufacturing blades near wind farms is high and difficult to implement. The combined blade scheme of manufacturing, segmental transportation, and on-site installation is an effective solution to the above problems

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