Wind power blade root extension component and manufacturing method thereof

Abstract

The invention discloses a wind power blade root lengthened section component and a manufacturing method thereof, increasing the blade length and improving the power generation efficiency of a wind turbine generator. The lengthened section component is a section of hollow cylinder shell structure positioned between a traditional blade and a wheel hub, and consists of a fiber reinforced composite main structure and metal embedded parts for connecting; and the metal embedded parts are arranged on a middle layer of the shell at equal intervals. In the axis direction of the lengthened section, a metal optical cover is embedded in one end connected with the traditional blade; the tail end of the metal optical cover is embedded with a cylindrical artificial body wrapped with a demolding fabric; the cylindrical artificial body is consistent with the metal optical cover in section size; the artificial body is slightly longer than a bolt for connecting the lengthened section with the blade; one end connected with the wheel hub is embedded with a metal bolt cover having an internal thread; and a continuous fiber composite prefabricated profile strip is laid between the metal optical cover and the metal bolt cover. The lengthened section component is light, and connects with a blade in high strength, connection through bolts is convenient for for installation and maintenance.

Description

technical field [0001] The invention relates to wind power generator blades, in particular to a wind power blade root extension component and a manufacturing method thereof, belonging to parts of wind power generation equipment. Background technique [0002] Wind turbine blades are crucial components of wind turbine generators. Their main function is to capture incoming wind energy, convert wind energy into mechanical energy, drive the wind turbine generator and then convert mechanical energy into electrical energy. The length of wind turbine blades directly affects the ability of wind turbines to capture wind energy and the output power of wind turbines. In the case of the same output efficiency, the power generation capacity of wind turbines has a quadratic relationship with the length of blades. Increasing the length of blades is a direct and effective way to increase the power generation capacity of wind turbines. However, the longer the blades, the greater the load. St...

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Problems solved by technology

[0003] Not only that, because it is not easy for wind turbines to fully grasp the wind resources at the installation location in the early stage of installation, in the actual operation process, some wind turbines often fail to achieve the expected wind speed and power after installation, and the actual operating load is not as expected. value, which also provides the actual demand for the growth of fan blades, and replacing the entire blade will greatly increase the transformation cost. On the basis of the existing blade, it is a relatively economical improvement to increase the length of the entire blade by adding a blade root section Measures to make wind turbines work

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