| 摘要 |
PROBLEM TO BE SOLVED: To reduce the vibration of stator blades by effectively applying damping thereto.SOLUTION: A steam turbine includes hollow-structure stator blades 40 each having a drain collection hole 43 communicated with the inside and outside thereof for collecting drain from a steam flow path, and an inner periphery ring 41 connecting the plurality of stator blades 40 at their radial insides in the peripheral direction. Inside the inner periphery ring 41, an internal space 44 is formed extending over the peripheral direction. The steam turbine further includes a partition plate for partitioning the internal space 44 into a first chamber 71 into which drain is introduced, and a second chamber 72 divided from the first chamber 71, and a number of damping members 73 filled in the second chamber 72. |
