TURBINE SHAFT SEALING DEVICE

Abstract: according to an embodiment, a turbine shaft sealing device suppresses leakage of a working fluid between a rotary part, and a lower half stationary part and an upper half stationary. six packing ring segments of the turbine shaft sealing device are formed of a lower half center segment and two lower half side segments, and an upper half center segment and two upper half side segments, and configure an annular packing ring having an inner peripheral ring part on which a hook that engages with a hook engagement annular groove of the lower half stationary part and the upper half stationary part, and a seal fin protruding toward the rotary part side are arranged. a biasing part is formed of a lower half center biasing part, a lower half side biasing part, an upper half side biasing part, and upper half center biasing part.

Inventor(s): Shogo IWAI, Tomohiko TSUKUDA, Yoshifumi IWASAKI, Tsuguhisa TASHIMA

CPC Classification: F01D11/001 ({for sealing space between stator blade and rotor})

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