| 摘要 |
PURPOSE:To disuse a heating device for warming up in a combined generation plant of a gas and a steam turbine by introducing the heated air from a gas turbine compressor into a center hole of a steam turbine rotor. CONSTITUTION:Steam is generated in an exhaust gas boiler 6 into which the exhaust gas in a gas turbine 3 is introduced, and conducted to a steam turbine 8 via a main steam line 7. In this combined plant, heated air is bled from a gas turbine compressor 1 and conducted to a rotor center hole of the steam turbine 8 via a steam turbine introduction line 25 for warming up. A warming-up air bleed line 23 is equipped with a flow control valve 24, which is controlled in its opening by a warming-up air controller 34. This construction permits to disuse a special heating device for warming up. |
