Steam turbine facility

Steam turbine facility

In order to provide a steam turbine facility wherein appropriate sealing can be provided between members formed of a Ni-based alloy cast material at a steam temperature of 650 Degree Centigrate or higher, the parent material of both a first member (32) and a second member (34) in this steam turbine...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TANAKA YOSHINORI, SHINOHARA TANEHIRO, AKAMATSU TETSURO, NISHIMOTO SHIN, HAMADA KATSUHISA
Format: Patent
Sprache:eng
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
CYLINDERS
DEVICES FOR VENTING OR AERATING
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
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:In order to provide a steam turbine facility wherein appropriate sealing can be provided between members formed of a Ni-based alloy cast material at a steam temperature of 650 Degree Centigrate or higher, the parent material of both a first member (32) and a second member (34) in this steam turbine facility (1) is formed of a cast material comprising a Ni-based alloy and/or austenitic steel and/or high-chrome steel, with the first member and second member forming a space through which steam with a temperature of 650 Degree Centigrate or higher passes. A metal gasket (60, 80) is provided between the first member (32) and the second member (34). The metal gasket (60, 80) is in line contact with the first member (32) and the second member (34) at multiple locations. At least the portions of the first member (32) and the second member (34) which are in line contact with the metal gasket (60, 80) are provided with a first high-hardness layer (56) having a higher hardness than the parent material.