GAS TURBINE, GAS TURBINE DEVICE AND REFRIGERANT RECOVERY METHOD OF GAS TURBINE MOVING BLADE

摘要

PROBLEM TO BE SOLVED: To obtain a turbine rotor, with high reliability against the stress by a centrifugal force, which is hardly affected to the heat of the recovered refrigerant and is hard to leak the refrigerant at the same time, in a gas turbine having a structure collecting the refrigerant after cooling a moving blade. SOLUTION: Plural wheels on whose outer periphery plural moving blades having a cooling passage are provided and a spacer member are arranged alternately on a rotary shaft. Plural flow routes made to flow the refrigerant after cooling the moving blade are provided on the spacer member and a first flow route communicates the moving blade arranged on the wheel of a gas flow upper streamside with the gas flow down streamside surface of the spacer member and a second flow route communicates the moving blade arranged on the wheel of a gas flow down streamside with the gas flow upper streamside surface of the spacer member. The flow route arranges a bent part near the axial direction center of the spacer member or its shape is made in a straight line shape.