REFRIGERANT RECOVERING GAS TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a refrigerant recovering gas turbine which suppresses increase of the temperature and generation of a thermal stress in a turbine and a compressor rotor as a moving blade refrigerant is recovered, and enables decrease of boost compression power of the refrigerant and increase of the rate of recovering the refrigerant including turning energy to a combustion device. SOLUTION: This refrigerant recovering gas turbine is configured so that at least a first moving blade 51 of the gas turbine is cooled by a refrigerant passing within the moving blade and the refrigerant after cooling is recovered to a gas turbine combustion device via a refrigerant recovery path which is formed in a rotor and an outer peripheral spice of the rotor. Into the refrigerant recovery path 71 formed in the outer peripheral space of the rotor, a refrigerant whose temperature is lower than that of the recovered refrigerant passing within the refrigerant recovery path is guided.