GAS TURBINE, COOLING DEVICE FOR GAS TURBINE MOVING BLADE, AND COOLING METHOD FOR GAS TURBINE MOVING BLADE

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine, and a cooling device and a cooling method of gas turbine moving blade, in which there are few flow passage losses and thermal deformations, with good efficiency, without adding either any special parts or machining. ;SOLUTION: The gas turbine is such that moving blades 15 disposed at the periphery of a rotor 5 are cooled by steam. In this case, supply path for supplying the steam to moving blade 15 and a recovery path for recovering the steam from blades 15 are disposed within the rotor 5, the supply path is formed of a hole 26 disposed in the axe of the rotor, and the recovery path is formed of the cavity parts 41-50 between members constituting the rotor.;COPYRIGHT: (C)1997,JPO