Seal structure for a steam turbine

A steam turbine is provided comprising a seal device (3c) provided between a rotating portion (2a) and a fixed portion (3a), the rotating portion being composed of a rotor and members that rotate with the rotor, the fixed portion being composed of a casing and members fixed to the casing, the casing...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TORIYA, HAJIME, YAMAZAKI, HARUYUKI, KOBAYASHI, KEI, NARITA, KENJIRO, DOI, HIROYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CYLINDERS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PISTONS SEALINGS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A steam turbine is provided comprising a seal device (3c) provided between a rotating portion (2a) and a fixed portion (3a), the rotating portion being composed of a rotor and members that rotate with the rotor, the fixed portion being composed of a casing and members fixed to the casing, the casing containing the rotating portion, wherein the seal device further comprises a plurality of seal fins (3c2,3c3) provided at least one of the rotating portion and the fixed portion, and spacers made of a permeable metal (4) that makes part of the leaking steam pass through, the spacers facing the respective seal fins.