Turbine tester

Abstract

The invention relates to a turbine tester which comprises a combustion gas generator including a compressor, a combustion chamber and a working turbine, and a fuel control module. The turbine tester further comprises a tester including an interstage combustion chamber and a tested turbine. The interstage combustion chamber is arranged behind the combustion gas generator, so that the high temperature high pressure gas in the combustion chamber flows by the working turbine and enters into the interstage combustion chamber. The tested turbine is arranged behind the interstage combustion chamber, the high temperature high pressure combustion gas of the interstage combustion chamber flows by the tested turbine and pushes the test turbine to rotate. The combustion gas generator is decoupled from the test turbine.

Description

technical field [0001] The invention relates to the field of turbine engines, in particular to a turbine test device for the turbine engine. Background technique [0002] The working principle of a turbine engine (including turbine aeroengine and turbine gas turbine) is to compress the air to a high-pressure state through the compressor and enter the combustion chamber, mix and burn the injected fuel in the combustion chamber to form high-temperature and high-pressure gas, and then drive the turbine to rotate to do work, thereby Convert fuel chemical energy into mechanical energy. In the process of doing work, the turbine blades of the gas turbine play an important role, which converts the available heat energy of the gas into turbomechanical work. As one of the key components of a gas turbine, the working environment of the turbine blade is quite harsh, and it rotates at high speed under high temperature and high pressure conditions. The high-speed rotation of the blades ...

AI Technical Summary

Problems solved by technology

At present, foreign engine companies determine the turbine blade life design based on the core machine test, which not only still differs greatly from the turbine blade environment when the real gas turbine is working, resulting in large errors in the turbine blade life design and low blade reliability; moreover, in the core machine test Full-ring blades need to be processed, the quantity is large, the construction period is long, and the cost is expensive. Once a blade problem is found and needs to be modified, the impact will be huge, resulting in a longer design cycle and consuming a lot of development costs.

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