Turbine blade with three-dimensional mesh woven fibers

Abstract

The invention provides a turbine blade with three-dimensional mesh woven fibers. The three-dimensional mesh woven fibers are added to the wall surface and the interior of the turbine blade, wherein onthe wall surfaces of a suction surface and a pressure surface of the turbine blade, the fibers are distributed around an air mold hole, and the fibers comprise wall surface transverse fibers and wallsurface vertical fibers; on a blade grid plane without the air mold hole of the turbine blade, the fibers comprise first internal transverse fibers and first internal longitudinal fibers; the first internal longitudinal fibers penetrate through the wall surface of the suction surface or the pressure surface and are connected with cross intersection points of the wall surface transverse fibers andthe wall surface vertical fibers; on the blade grid plane with the air mold hole of the turbine blade, no fibers are distributed on the inner wall of the air mold hole, and the fibers are only distributed on the periphery of the air mold hole; the fibers comprise second internal transverse fibers and second internal longitudinal fibers, and the second internal transverse fibers and the second internal longitudinal fibers are located in ribs and penetrate through the cross sections of the whole ribs to form a ladder-shaped fiber net; the fibers at the tail edge of the turbine blade penetrate through the inner wall surface and the outer wall surface to be distributed; and the internal vertical fibers are distributed in the ribs of the turbine blade in the blade height direction.

Description

technical field [0001] The invention belongs to the technical field of cooling the turbine blades of gas turbines, in particular to a turbine blade added with three-dimensional mesh braided fibers. Background technique [0002] A gas turbine is mainly composed of three core parts: a compressor, a combustion chamber, and a turbine. The compressor compresses the incoming air, and the compressed air is mixed with fuel in the combustion chamber for combustion to generate high-temperature and high-pressure gas. The expansion of the gas drives the turbine to rotate and do work. can be converted into mechanical energy. [0003] In a high-performance gas turbine engine, as the temperature of the gas in front of the turbine increases, the mechanical properties of the turbine blades continue to decline under the impact and high-intensity rotation of the high-temperature and high-pressure gas. Therefore, it is particularly important to improve the tensile strength of the turbine blade...

AI Technical Summary

Problems solved by technology

However, on the premise of not changing the shape of the turbine blade and the internal channel structure, how to further enhance the tensile strength of the turbine blade and the comprehensive cooling effect of the blade material has not been reported yet.

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