Initial steam flow regulator for steam turbine start-up
    1.
    发明授权
    Initial steam flow regulator for steam turbine start-up 失效
    用于汽轮机起动的初始蒸汽流量调节器

    公开(公告)号:US4561254A

    公开(公告)日:1985-12-31

    申请号:US664641

    申请日:1984-10-25

    IPC分类号: F01D19/00 F01K9/04 F01K13/02

    CPC分类号: F01K9/04

    摘要: In a combined steam generator-turbine system, a drain type is provided in front of the stop valve to drain the first steam supply with the stop valve closed until the temperature of the valve and/or the temperature of the steam exceeds the temperature of saturation by a predetermined amount, and logic circuitry is provided to generate permissive signals which combine to allow successive admission of steam to the gland seal and to the steam turbine.

    摘要翻译: 在组合的蒸汽发生器 - 涡轮机系统中,在截止阀前面设置有排水类型,以排出第一蒸汽源,截止阀关闭,直到阀的温度和/或蒸汽的温度超过饱和温度 并且提供逻辑电路以产生允许信号,其合并以允许蒸汽连续地进入到压盖密封件和蒸汽涡轮机。

    Anticipatory boiler feedpump suction head controller system
    2.
    发明授权
    Anticipatory boiler feedpump suction head controller system 失效
    预期锅炉给水泵吸头控制系统

    公开(公告)号:US4552099A

    公开(公告)日:1985-11-12

    申请号:US664640

    申请日:1984-10-25

    IPC分类号: F22D5/32 F01K23/10 F22D5/26

    CPC分类号: F01K23/108 Y02E20/16

    摘要: Boiler feedpump net positive suction head (NPSH) control is performed in a heat recovery steam generator including a deaerator inserted between steam turbine condensate and steam boiler. To this effect apparatus is provided responsive to temperature at the output of the deaerator, to fluid flow therefrom, and to temperature at the input of the boiler feedpump for providing a signal representative of the anticipated suction head pressure, and the NPSH margin is derived by comparison with actual pressure to control the pegging valve, or other heat source control to the deaerator.

    摘要翻译: 锅炉给水泵净吸头(NPSH)控制在包括蒸汽轮机冷凝水和蒸汽锅炉之间的除气器的热回收蒸汽发生器中进行。 为此,设备响应于脱气器输出端的温度,流体的流量以及锅炉给水泵的输入端的温度而提供,以提供表示预期吸头压力的信号,并且NPSH余量由 与实际压力比较来控制夹紧阀,或其他热源控制到除气器。

    Heat recovery steam generator outlet temperature control system for a
combined cycle power plant
    3.
    发明授权
    Heat recovery steam generator outlet temperature control system for a combined cycle power plant 失效
    热回收蒸汽发生器出口温度控制系统,用于联合循环发电厂

    公开(公告)号:US4578944A

    公开(公告)日:1986-04-01

    申请号:US664644

    申请日:1984-10-25

    摘要: In a combined cycle plant boiler an inlet temperature is adjusted or controlled while concurrently modulating the IGV's and the load of the gas turbine and the attemperator of the boiler, and concurrent modulation of the IGV's, the gas turbine load, the attemperator is effected as upon three independent control variables to adjust and/or maintain the boiler outlet temperature independently of steam turbine operation and to maximize gas turbine load control range. Control of the output temperature of one boiler is also managed in relation with the mixed temperature of steam from other boilers fluidly connected to the steam turbines.

    摘要翻译: 在联合循环设备锅炉中,调节或控制入口温度,同时调节IGV和燃气轮机和锅炉调温器的负载,IGV的同时调节,燃气轮机负载,调温器按照 三个独立的控制变量,用于独立于蒸汽轮机操作调节和/或维持锅炉出口温度,并最大化燃气轮机负载控制范围。 一个锅炉的输出温度的控制也与来自其它与蒸汽轮机连接的锅炉的蒸汽的混合温度有关。

    Protective shutdown system for combined cycle plant having a dual liquid
fuel system
    5.
    发明授权
    Protective shutdown system for combined cycle plant having a dual liquid fuel system 失效
    具有双液体燃料系统的联合循环设备的保护关闭系统

    公开(公告)号:US4151712A

    公开(公告)日:1979-05-01

    申请号:US742736

    申请日:1976-11-17

    CPC分类号: F02C6/18

    摘要: A gas turbine and an afterburner are operated with a dual liquid fuel system. During protective stops, logic controls are provided for initiating a transfer from operating fuel to a flushing fuel after predetermined conditions are satisfied. After fuel transfer, shutdown is completed without setting trips and restart can be achieved without special prestart preparation of the fuel system.

    摘要翻译: 燃气轮机和后燃器采用双液体燃料系统运行。 在保护停止期间,提供逻辑控制以在满足预定条件之后启动从操作燃料到冲洗燃料的转移。 在燃油传输后,关闭完成,无需设置跳闸,无需特别预备燃料系统即可实现重启。

    Deaerator pressure control system for a combined cycle steam generator
power plant
    8.
    发明授权
    Deaerator pressure control system for a combined cycle steam generator power plant 失效
    联合循环蒸汽发电机组的除氧器压力控制系统

    公开(公告)号:US4555906A

    公开(公告)日:1985-12-03

    申请号:US664639

    申请日:1984-10-25

    IPC分类号: B01D19/00 F01K23/10 F01K13/02

    摘要: In a combined cycle steam generation power plant, until steam extraction can be used to reheat the deaerator, the economizer and/or the pegging recirculation are controlled so as to track the pressure upwards of the autocirculation reheater from the low pressure evaporator with a certain lag in pressure, and to establish pressure in the deaerator on the decreasing trend of the autocirculation reheater at a slower rate and without lowering below a minimum pressure so as to prevent the occurrence of bubbling and cavitation effect.

    摘要翻译: 在联合循环蒸汽发电发电厂中,直到可以使用蒸汽提取来再热除气器,控制节能器和/或夹紧再循环以便从低压蒸发器以一定的滞后跟踪自动循环再热器向上的压力 并且以较慢的速率在自动循环再热器的下降趋势下在除气器中施加压力,并且不降低到最小压力以下,以防止发泡和气蚀效应。