| 摘要 |
<p>A combined cycle power plant including, a burner, a gas turbine to generate power by expanding high temperature combustion gas from the burner, an exhaust heat recovery boiler to generate steam by heating feed water by exhaust gas discharged from the gas turbine, and a steam turbine to generate power by expanding the steam supplied from the exhaust heat recovery boiler. The exhaust heat recovery boiler is composed of high pressure, intermediate pressure and low pressure lines, each of which includes an economizer, a drum, an evaporator and a superheater to generate different pressure steam, respectively. The feed waters sent to the economizers of the high pressure, intermediate pressure and low pressure lines are heated by the exhaust gas from the gas turbine and supplied to the drums in the respective pressure lines. The combined cycle power plant further includes a fuel heating line provided in a fuel line of the burner to heat fuel supplied to the burner. <IMAGE></p> |
