Combined cycle power plant

摘要

A combined cycle power plant is provided and includes a gas turbine engine to generate power from combustion of a fuel and air mixture, a heat recovery steam generator (HRSG) disposed downstream from the gas turbine engine to receive heat energy from the gas turbine engine from which steam is produced, the HRSG including a superheating element and a drum element, and a steam turbine engine to be receptive of the steam produced in the HRSG and to generate power from the received steam, the HRSG further including a valve operably disposed to isolate the superheating element from the drum element when a risk of condensate formation in the HRSG exists.