Mould for testing aerodynamic configuration of repaired wind turbine blade, mould manufacture method and testing method through mould

Abstract

The invention relates to a mould for testing the aerodynamic configuration of a repaired wind turbine blade, a mould manufacture method and a repair condition testing method through the mould. The mould manufacturing method mainly comprises the steps that a position, corresponding to a damaged part of the blade, of an undamaged blade or an original complete blade mould is found out and used as a mould manufacturing area, the size of the mould manufacturing area is determined according to the size of the blade repair area, and the testing mould is manufactured based on the mould manufacturing area. Due to the fact that the testing mould meets the requirement for the standard appearance, existing before damage, of the damaged part and is small in size and light in weight, the testing mould can be conveniently carried to the blade repair area to test the aerodynamic configuration of the repaired part of the repaired blade, repair personnel are guided to make an accurate judgment and adjust repair work, the aerodynamic configuration of the repaired blade can meet the design requirement, the requirement for the aerodynamic performance of the blade is met to the maximum extent, the work efficiency of direct blade repair at a high altitude is improved, and repair cost is reduced.

Description

technical field [0001] The invention relates to a mold, a manufacturing method and an inspection method for inspecting the repaired aerodynamic shape of a wind turbine blade. It is used for inspecting whether the damaged part of a blade can reach the original precision after repair, so as to ensure that the repaired blade can maintain the original aerodynamic shape. aerodynamic shape. Background technique [0002] my country has a vast territory and abundant wind resources. As a green and renewable energy source, wind power has played an increasingly important role in our country. Especially in winter and spring in northern my country, the wind is very strong, and there are relatively many wind power generation equipment in these places. A wind turbine is a device that converts wind energy into mechanical energy and electrical energy. The accuracy of the aerodynamic shape of the wind rotor blades is directly related to the efficiency of wind energy utilization. For exampl...

AI Technical Summary

Problems solved by technology

[0007] (1) It is a very arduous task to disassemble the blades with such a large volume and weight from the tower of tens of meters, which requires a lot of manpower and mechanical equipment to support; The blades are mounted back on the tower, doubling the operating cost

[0008] (2) Wind turbines are generally located on high mountains and slopes. Even if such a huge blade is removed from the tower, there may not be a suitable place to place the blade, let alone how to repair it; if it is moved back to the factory , It also needs a large enough means of transportation to reach the position of the tower, and the mountains and slopes simply cannot allow the means of transportation to pass

[0009] (3) During the blade repair process, workers use structural glue or resin to repair the damaged wind rotor blades, but after repairing, they can only judge whether the aerodynamic shape of the repaired wind rotor blades is consistent with the standard original Due to the large size of the aerodynamic shape of the wind rotor blades, it is difficult to ensure that the size of the repaired wind rotor blades is exactly the same as the design size of the original wind rotor blades by this inspection method that only relies on the work experience of the workers. It has been mentioned that wind rotor blades have strict requirements on the accuracy of aerodynamic shape, so the existing repair and inspection methods are difficult to be used in the field of wind rotor blades that require extremely high precision

Images