COMBINED CYCLE POWER GENERATION PLANT

摘要

A combined cycle power generation plant including means for detecting flow rates of steam at the outlet/inlet of a steam cooling system. A warming finish timing of the steam cooling system is judged at the time of start from the deviation of the outlet/inlet flow rates. When the deviation of the steam flow rate at the inlet from the flow rate of the steam at the outlet of the steam cooling system falls below an allowable value, it is judged that the residual air and the drain are not scattered and warm-up is completed, allowing the operation flow to proceed to the step of starting a gas turbine.