Method and apparatus for operating a cross-compound turbine generator
plant
    1.
    发明授权
    Method and apparatus for operating a cross-compound turbine generator plant 失效
    用于操作交叉复式涡轮发电机设备的方法和装置

    公开(公告)号:US4316362A

    公开(公告)日:1982-02-23

    申请号:US97498

    申请日:1979-11-26

    CPC分类号: F01K7/22 F01D13/003 F01K13/02

    摘要: A cross compound turbine apparatus and method of operating the same wherein the apparatus includes a first turbine generator having a high pressure turbine and a first low pressure turbine connected to a first generator driving shaft, with the second turbine generator having an intermediate pressure turbine connected to a second generator driving shaft. Driving steam is supplied to the high pressure turbine and a primary steam line communicates exhaust steam from the high pressure turbine to drive the intermediate pressure turbine during a steady state operation of the first and second turbine generator sections. A bypass steam line communicates steam from the system supplying driving steam to the high pressure turbine to the intermediate pressure turbine in a bypassing relationship to the high pressure turbine. A control arrangement controls the flow of steam in the primary and bypass steam lines during a starting operating of the turbine generator sections, with the control arrangement being adapted to maintain the relative speeds of the first and second generator driving shafts in a predetermined synchronsis ratio. A controllable vent arrangement is provided for venting a portion of the steam flow in the primary steam line during starting operations. By virtue of these features, a speed synchronization of multiturbine sections can be obtained in an efficient and inexpensive manner without causing excessive heat rise in the turbine blades.

    摘要翻译: 一种交叉复合涡轮机装置及其操作方法,其中该装置包括具有高压涡轮机的第一涡轮发电机和连接到第一发电机驱动轴的第一低压涡轮机,第二涡轮发电机具有连接到 第二发电机驱动轴。 驱动蒸汽被供应到高压涡轮机,并且主蒸汽管线连通来自高压涡轮机的排气蒸汽以在第一和第二涡轮发电机部分的稳态操作期间驱动中压涡轮机。 旁通蒸汽管线将蒸汽从提供驱动蒸汽的系统传递到高压涡轮机,以与旁路蒸汽轮机的关系传递到中压涡轮机。 控制装置在涡轮发电机部分的起动操作期间控制初级和旁路蒸汽管线中的蒸汽流,其中控制装置适于将第一和第二发电机驱动轴的相对速度保持在预定的同步比。 提供可控的排气装置,用于在启动操作期间排出主蒸汽管线中的蒸汽流的一部分。 凭借这些特征,可以以高效且廉价的方式获得多级涡轮机段的速度同步,而不会在涡轮机叶片中引起过多的热升高。