VALVE DEVICE AND STEAM TURBINE EQUIPMENT

A valve device (2) includes a main steam valve that is provided on a steam flow channel which guides steam to a steam turbine and that adjusts the opening and closing state of the steam flow channel, a regulating valve (21) that is provided on the steam flow channel to be connected to the main steam...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NOGAMI Tomoaki, NISHIYAMA Kenichi, KODA Takuro
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS 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 STEAM ENGINES TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve device (2) includes a main steam valve that is provided on a steam flow channel which guides steam to a steam turbine and that adjusts the opening and closing state of the steam flow channel, a regulating valve (21) that is provided on the steam flow channel to be connected to the main steam valve in series and that includes a first valve seat (12) which is exposed in the steam flow channel and a first valve body (13) which abuts or is separated from the first valve seat (12) to adjust a flowing state in the steam flow channel, an overload valve (22) that is provided on a branch flow channel which connects a portion of the steam flow channel between the main steam valve and the regulating valve (21) and the steam turbine to each other and that includes a second valve seat (14) which is exposed in the branch flow channel and a second valve body (15) which abuts or is separated from the second valve seat (14) to adjust a flowing state in the branch flow channel, and a driving unit (20) that drives the first valve body (13) and the second valve body (15) as a common driving source of the first valve body (13) and the second valve body (15) such that the first valve body (13) and the second valve body (15) are interlocked with each other.