Steam turbine

A super steam turbine ( 100 ) into which high-temperature steam of 650 DEG C. or more is introduced is provided with an inner steam pipe ( 120 ) which is disposed through an inner casing ( 110 ) and an outer casing ( 111 ), an outer steam pipe ( 130 ) which is welded to the outer casing ( 111 ) and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SUGA TAKEO,ISHII RYUICHI,TAKAHASHI TAKEO,FUKUDA MASAFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A super steam turbine ( 100 ) into which high-temperature steam of 650 DEG C. or more is introduced is provided with an inner steam pipe ( 120 ) which is disposed through an inner casing ( 110 ) and an outer casing ( 111 ), an outer steam pipe ( 130 ) which is welded to the outer casing ( 111 ) and disposed outside of the inner steam pipe ( 120 ) along the inner steam pipe ( 120 ) with a prescribed space therebetween, and a radiation heat shielding pipe ( 140 ) which is disposed along the inner steam pipe ( 120 ) between the inner steam pipe ( 120 ) and the outer steam pipe ( 130 ) to face a welded portion of at least the outer steam pipe ( 130 ), wherein cooling steam ( 160 ) is flown between the inner steam pipe ( 120 ) and the outer steam pipe ( 130 ), respective component parts are made of a suitable heat-resisting steel having prescribed chemical composition ranges.