| 摘要 |
<p>A combined cycle power plant which has a backup function at startup and even during operation, and surely maintains steam cooling in the event of occurrence of an accident. The combined cycle power plant serves to surely maintain steam cooling by conducting to a steam cooling system (400), which causes a high pressure portion being cooled, of a gas turbine to be cooled by steam, a high pressure steam or a medium pressure steam from an exhaust heat recovery boiler (200), when an exhaust steam, which is a cooling steam for the steam cooling system (400), from a high pressure turbine (301) suddenly decreases, to use the same as a cooling steam. </p> |
