| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steam turbine capable of suppressing vibration stress of rotor blades and enlarging the range of steam flowing quantity in which the steam turbine can be operated. <P>SOLUTION: The steam turbine 10 has a casing 20, a turbine rotor 22 penetrating the casing 20, rotor blade rows constituted by implanting the plurality of rotor blades 21 in a peripheral direction of the turbine rotor 22 and comprising a plurality of stages in an axial direction of the turbine rotor 22. Further, the steam turbine has a diaphragm outer wheel 23 arranged in an inner periphery of the casing 20, a diaphragm inner wheel 24 arranged in the inside of the diaphragm outer wheel 23, stator blade rows constituted by attaching a plurality of stator blades 25 in a peripheral direction between the diaphragm outer wheel 23 and the diaphragm inner wheel 24 and comprising a plurality of stages in the axial direction of the turbine rotor 22 and constituting the rotor blade rows and turbine stages, and a steam supplying mechanism supplying steam to the stator blade row constituting the final stage of the turbine stages. <P>COPYRIGHT: (C)2013,JPO&INPIT |
