Novel wind turbine blade

Abstract

The invention discloses a novel wind turbine blade. The novel wind turbine blade comprises a blade shell and a supporting pipe, wherein the blade shell comprises a plurality of panels; and the panelsof the blade shell are connected to the outer wall of the supporting pipe. According to the novel wind turbine blade, on one hand, the overall strength of the supporting pipe can be improved, and thenthe overall strength of the blade is improved; and on the other hand, the light weight is achieved, and the aerodynamic efficiency is greatly improved by designing the structure of the blade shell.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a novel wind power generation blade. Background technique [0002] Blades are one of the key components of wind turbines. The blades are driven to rotate by the wind speed of the natural wind of the gas, and the kinetic energy of the blades rotates the generator to generate electricity. Existing blades are usually made of fiberglass and other materials, and the blades are formed by mold processing as a whole. On the one hand, the manufacturing process and mold processing costs are relatively high, and the blade shell needs to be designed as a curved surface, which is difficult to design; on the other hand, Fiberglass and other materials are heavy, and the size cannot be designed to be larger, and it is not easy to degrade when it becomes a waste product, and glass fiber is harmful to the human body. [0003] In addition, in the existing blade shells, round tubes ar...

AI Technical Summary

Problems solved by technology

Existing blades are usually made of fiberglass and other materials, and the entire blade is formed by mold processing. On the one hand, the manufacturing process and mold processing costs are relatively high, and the blade shell needs to be designed as a curved surface, which is difficult to design; on the other hand, Fiberglass and other materials are heavy, so the size cannot be designed larger, and it is not easy to degrade when it becomes a waste product, and glass fiber is harmful to the human body.

[0003] In addition, in the existing blade shells, round tubes are usually arranged in the inner cavity of the shell to increase the strength of the blades, but this will cause weak points in the connecting parts of the round tubes, which will cause deformation of the support tubes; and due to the thickness of the blade shells It is usually larger than the round tube, which will cause the support tube to be smaller in diameter and lower in strength, thereby reducing the overall strength of the blade

[0004] Furthermore, the existing blades cannot be arbitrarily transformed into blades of different sizes, and the assembly is not flexible. Blades of different sizes and different powers need to be redesigned, which greatly increases the cost

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