| 摘要 |
<p>High-temperature steam at 620°C or higher is introduced to a reheat steam turbine (100), and a turbine rotor (113) of the reheat steam turbine (100) includes: a high-temperature turbine rotor constituent part (113a) positioned in an area extending from a nozzle (114a) on a first stage to a moving blade (115a) on a stage where temperature of the steam becomes 550°C and made of a corrosion and heat resistant material; and low-temperature turbine rotor constituent parts (113b) connected to and sandwiching the high-temperature turbine rotor constituent part (113a) and made of a material different from the material of the high-temperature turbine rotor constituent part (113a).</p> |
