| 摘要 |
FIELD: power industry. ^ SUBSTANCE: gas-turbine plant includes two-stage turbine compressor with combustion chamber and low and high pressure compressors, high and low pressure turbines, as well as power turbine and exhaust system. Low-pressure compressor rotor is connected at the inlet by means of shaft to starting engine. Flow-through part of low-pressure compressor is connected at the outlet to high-pressure compressor and to channel of external circuit enveloping on the outer side the external housings of high-pressure compressor, combustion chamber, high-pressure turbine and low-pressure turbine. External circuit channel above front stages of high-pressure compressor is separated with the partition rigidly installed in radial direction on outer housing of external circuit channel. External housing of high-pressure compressor is provided with possibility of being moved relative to the above partition in axial direction. Holes in the partition are provided with possibility of their being shutoff in start-up modes of the installation with the valves installed on outer side of the housing of external circuit channel. ^ EFFECT: improving reliability and efficiency of the engine by arranging the effective cooling of external housings, decreasing the gas temperature before high-pressure turbine and minimising the start-up time of the installation with simultaneous simplification of its design. ^ 3 dwg |
