Baker & Hostetler LLP
Steam turbine overspeed protection system, and steam turbine
Provided is a steam turbine overspeed protection system, includes a drive gear arranged to match a rotation speed of a rotor of a steam turbine; a rotating shaft parallel to an axis of the drive gear and capable of rotating at a critical rotation speed; a protective gear arranged on the rotating shaft and forming a lead screw nut mechanism with the rotating shaft, and arranged to be capable of engaging with the drive gear when the rotation speed of the drive gear exceeds the critical rotation speed; and an operating rod connected to the protective gear; wherein, when the drive gear engages with the protective gear, the protective gear can move in the axial direction of the rotating shaft and thereby drive the operating rod to move and produce an action that activates a protection device for preventing steam turbine overspeed.
CHINA SHENHUA ENERGY COMPANY LIMITED
F F F F F F F F Y
F01D F05D F01D F05D F05B F01D F05B F01D Y02T
additional additional inventional additional additional inventional additional inventional additional
Zhijiang Yanchao Xing Wei Lihua Zhijia Shumin
Liu Li Wei Wang Cao Lv Wang