STARTUP METHOD FOR LARGE STEAM TURBINES
    2.
    发明申请
    STARTUP METHOD FOR LARGE STEAM TURBINES 有权
    大型蒸汽涡轮机的启动方法

    公开(公告)号:US20130177388A1

    公开(公告)日:2013-07-11

    申请号:US13347745

    申请日:2012-01-11

    IPC分类号: F01D19/00

    CPC分类号: F02C7/26 F01D19/00 F01K13/02

    摘要: A method of controlling a steam turbine, having a controller controlling at least the position of a steam inlet valve located in a steam conduit between a steam generator and the turbine to control mass flow into the turbine, includes selecting, before beginning startup, a predefined set of startup sequences of setpoints based on a turbine status at the beginning of startup and/or a startup mode chosen by the operator, the set of startup sequences of setpoints includes parameters controlled and not controlled by the controller; using the controller to control the parameters controlled by the controller so as to progress the turbine from setpoint to setpoint in accordance with predefined set of startup sequences until reaching a release point; and at the release point, delaying moving to the next setpoint until actual setpoint values agree with predefined release point setpoint values for parameters not controlled by the controller.

    摘要翻译: 一种控制蒸汽涡轮机的方法,具有控制器至少控制位于蒸汽发生器和涡轮机之间的蒸汽导管中的蒸汽入口阀的位置,以控制进入涡轮机的质量流量,包括在开始启动之前选择预定义的 基于启动开始时的涡轮机状态和/或由操作者选择的启动模式的设定点的启动顺序集合,设定点的启动序列的集合包括由控制器控制和不控制的参数; 使用所述控制器来控制由所述控制器控制的参数,以便根据预定义的启动序列集合将所述涡轮机从设定点进给到设定点,直到达到释放点; 并且在释放点,延迟移动到下一个设定值,直到实际设定值与预定义的释放点设定值一致为参数未被控制器控制。