METHOD FOR OPERATING A MULTI-STEP STEAM TURBINE

摘要

The invention relates to a method for operating a multi-step steam turbine (4, 5, 6) that is suitable for high temperatures. The rotor (27) is embodied as a welded construction having a first component (33) and a second component (34) and a coolant is supplied to the steam turbine (4, 5, 6) after an intermediate stage (14) when said steam turbine (4, 5, 6) is in the light-load or no-load phase. As a result, the thermal loads in the outflow area (32) of the steam turbine (4, 5, 6) are reduced.