| 摘要 |
PROBLEM TO BE SOLVED: To provide a steam turbine system superior in heat efficiency, by easily attaining a constitution of not flowing backward to the turbine side, even if a bleeding drain boils by pressure reduction in stopping. SOLUTION: This steam turbine system 10 includes a turbine 20 rotating by steam supplied from a steam generating part 11, a condensing part 30 for condensing exhaust gas g1 of the steam into liquid water, a bleeding pipe 24 for delivering bleed air g2 existing in a process of the adiabatic expansion, a supply water heating part 40 for distributing the liquid water passing through the supply water heating part 40 to the steam generating part 11 after being heated by the bleed air g2, a first opening-closing valve 36 arranged in a communicating pipe 35 for communicating the condensing part 30 with the supply water heating part 40, and a control part 13 for switching the first opening-closing valve 36 to an opening state from a closing state by sensing switching of fluid pressure in the bleeding pipe 24 to the inverse direction from the forward direction. COPYRIGHT: (C)2011,JPO&INPIT
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