Method for retrofitting a double flow steam turbine

The method for retrofitting a double flow steam turbine (1) comprises: opening an outer casing (21) of the steam turbine (1), removing the blade carriers (5, 6) and the stator blades (7, 8), removing the inner casing (11a) with inlet belt (11b), removing the double flow rotor (2) and the rotor blade...

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Bibliographische Detailangaben
Hauptverfasser:	BLATCHFORD, DAVID PAUL, GHODAKE, SUYOG SIDRAM, DIESCH, ANDREW MARTIN, BELL, DAVID LLOYD
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:	The method for retrofitting a double flow steam turbine (1) comprises: opening an outer casing (21) of the steam turbine (1), removing the blade carriers (5, 6) and the stator blades (7, 8), removing the inner casing (11a) with inlet belt (11b), removing the double flow rotor (2) and the rotor blades (3, 4). Thus, the method comprises the further steps of providing a new single flow rotor (23) and new rotor blades (24) different from the rotor blades (3, 4) connected to the double flow rotor (2), providing balancers connected to the single flow rotor (23), to balance the axial thrust, providing new stator blade carriers (28) and new stator blades (29) different from the stator blades (7, 8) associated to the double flow rotor (2), providing a new inner casing (31a) with inlet belt (31b), providing a passage (30) between the inner casing (31a) and the outer casing (21), closing the outer casing (21).