| 摘要 |
PROBLEM TO BE SOLVED: To control a gas turbine cooling air cooler and at waste heat boiler without hindrance by using the waste heat boiler as a forced once-through steam generating device, and arranging a separation flask between an evaporator and a superheater on the steam side. SOLUTION: A gas turbine system burns natural gas in a combustion chamber 3 under the supply of compressed air from a compressor 2 and drives a gas turbine 4 with the combustion gas to drive a generator 5 or the compressor 2. High temperature exhaust finished with work is supplied to a waste heat recovery type steam generating device 7 through a pipeline 6 to generate steam. Steam tubines 9-11 are driven by this steam, and working steam is condensed by a condenser 13. A separation flask 25 is provided for phase separation, and an outlet of a high pressure evaportor 22 and air coolers 32, 33 are connected thereto. The upper end part of the separation flask 25 is connected to a high pressure heater 23, and the high pressure heater 23 is always kept in a dry state.
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