STEAM TURBINE DRIVING MACHINE, SHIP EQUIPPED WITH STEAM TURBINE DRIVING MACHINE, AND GAS LIQUEFACTION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a steam turbine driving machine in which two shafts can be provided without increasing a space for installation, and in which the two output shafts can be driven separately by a simple constitution.

SOLUTION: The steam turbine driving machine 1A includes: an ahead high-pressure turbine 7 which is driven by the supply of steam; a first drive shaft 4 which is driven by the ahead high-pressure turbine 7; an ahead first low-pressure turbine 11 and an ahead second low-pressure turbine 13 both of which are driven by the supply of steam discharged from the ahead high-pressure turbine 7; and a second drive shaft 14 which is driven by the ahead first low-pressure turbine 11 and the ahead second low-pressure turbine 13. The machine additionally includes a steam dump pipe 33 and a vacuum valve 35 both of which control the pressure of steam that is discharged from the ahead high-pressure turbine 7 and supplied to the ahead first low-pressure turbine 11 and the ahead second low-pressure turbine 13.

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