Method of running combined-cycle power plant and controller therefor
专利汇可以提供Method of running combined-cycle power plant and controller therefor专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the sharp rising of the level of boiler water in starting and reduce a starting loss, by performing control to make the water level of a deaerator and a boiler drum low when a load is small but high when the load is large.
CONSTITUTION: A duct 70 extending from a boiler drum 20 to a deaerator 32 is provided. A control valve 45 is installed in the duct 70. Other ducts 72, 74 extending from the deaerator 32 to a steam condenser 28 are provided. Other control valves 73, 75 are installed in the ducts 72, 74. The deaerator 32 is equipped with a pressure detector 80 and a water level detector 50. When the water level of the boiler drum 20 is about to exceed a setpoint, the control valve 45 is opened and hot water is conducted to the deaerator 32 and separated into steam and drainage. The pressure detector 80 detects the pressure of the deaerator to operate the control valve 73 to keep the pressure constant. The control valve 75 is operated, only when the water level detector 50 detects that the water level of the deaerator becomes abnormally high.
COPYRIGHT: (C)1980,JPO&Japio，下面是Method of running combined-cycle power plant and controller therefor专利的具体信息内容。
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