| 摘要 |
PROBLEM TO BE SOLVED: To support the vacuum load of a condenser without excessive deformation of a steel frame by interposing a spring mechanism and a vibration-proof damper between the lower surface of the condenser of a steam turbine and the foundation frame. SOLUTION: A steel frame 1 is elastically and vibration-proof supported on a foundation frame 50 through plural spring mechanisms 40 and plural vibration-proof dampers 30 arranged side by side. Further, a condenser 10 is provided with plural spring mechanisms 40 and vibration-proof dampers 30 arranged side by side between the lower surface thereof and the foundation frame 50 to thereby support the condenser 10 elastically and in the vibration-proof state. During the operation of a turbine generator, by the thermal expansion of the condenser 10, vertical displacement is caused in the condenser 10 and a first low pressure turbine 4 and a second low pressure turbine 5 to which the condenser 10 is fixed. However, since the steel frame 1 and the condenser 10 are supported on the foundation frame 50 through the spring mechanisms 40 and the vibration-proof dampers 30, the vertical displacement is absorbed by the elastic and vibration-proof mechanism and no excessive load is applied to the steel-made frame 1.
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