초록 ▼

A cooling steam system for a steam cooled gas turbine is configured such that a main stream of exhaust from a high pressure turbine is branched from a line leading to a reheater, and supplied as cooling steam for a high temperature moving blade and a high temperature stationary blade of the gas turb

A cooling steam system for a steam cooled gas turbine is configured such that a main stream of exhaust from a high pressure turbine is branched from a line leading to a reheater, and supplied as cooling steam for a high temperature moving blade and a high temperature stationary blade of the gas turbine, and the cooling steam is then recovered into an inlet area or an intermediate area of the reheater; whereby the bottoming side and the steam cooled side can be operated under preferred conditions without adverse influence on the bottoming side.

대표청구항 ▼

[ We claim:] [1.] A cooling steam system for a steam cooled gas turbine in a combined power plant which comprises a combination of a gas turbine plant and a steam turbine plant, and includes an exhaust heat recovery boiler for generating steam turbine driving steam by utilizing gas turbine exhaust h

[ We claim:] [1.] A cooling steam system for a steam cooled gas turbine in a combined power plant which comprises a combination of a gas turbine plant and a steam turbine plant, and includes an exhaust heat recovery boiler for generating steam turbine driving steam by utilizing gas turbine exhaust heat; whereina main stream of exhaust from a high pressure turbine is branched from a line leading to a reheater, and supplied as cooling steam for a high temperature moving blade and a high temperature stationary blade of the gas turbine, andsteam having cooled the high temperature moving blade and the high temperature stationary blade is introduced into an inlet area or an intermediate area of the reheater.