METHOD AND APPARATUS FOR COMBINED CYCLE POWER PLANT STARTUP
    11.
    发明申请
    METHOD AND APPARATUS FOR COMBINED CYCLE POWER PLANT STARTUP 有权
    组合循环发电厂启动的方法和装置

    公开(公告)号:US20110185744A1

    公开(公告)日:2011-08-04

    申请号:US12698227

    申请日:2010-02-02

    IPC分类号: F02C7/26 F02C7/00 F28D15/00

    摘要: A combined cycle power plant startup system is provided. The system includes a steam turbine, a HRSG, a condenser, and a bypass system. The steam turbine may include a turbine section. The HRSG may be operably connected to the steam turbine for providing steam to the steam turbine. The HRSG may include a reheater. The bypass system may be configured to adjust the steam pressure downstream of the reheater by routing steam downstream of the reheater to the condenser. The bypass system may include at least one bypass line, at least one control valve operably connected to the at least one bypass line, a pressure gauge configured to monitor the steam pressure downstream of the reheater, and a controller configured to communicate with the pressure gauge and operate the at least one control valve.

    摘要翻译: 提供了一个联合循环发电厂启动系统。 该系统包括蒸汽轮机,HRSG,冷凝器和旁路系统。 蒸汽轮机可以包括涡轮机部分。 HRSG可以可操作地连接到蒸汽涡轮机,以向蒸汽轮机提供蒸汽。 HRSG可能包括一个再加热器。 旁通系统可以被配置为通过将再热器下游的蒸汽路由到冷凝器来调节再热器下游的蒸汽压力。 旁通系统可以包括至少一个旁通管线,至少一个可操作地连接到至少一个旁通管线的控制阀,配置成监测再热器下游的蒸汽压力的压力计,以及配置成与压力计连通的控制器 并操作至少一个控制阀。

    COMBINED CYCLE POWER PLANT INCLUDING A HEAT RECOVERY STEAM GENERATOR
    12.
    发明申请
    COMBINED CYCLE POWER PLANT INCLUDING A HEAT RECOVERY STEAM GENERATOR 审中-公开
    组合循环发电厂,包括热回收蒸汽发生器

    公开(公告)号:US20100242430A1

    公开(公告)日:2010-09-30

    申请号:US12415413

    申请日:2009-03-31

    IPC分类号: F01K23/08 F02C6/00

    摘要: A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.

    摘要翻译: 联合循环发电厂包括气体涡轮机,可操作地耦合到气体涡轮机的蒸汽涡轮机,以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机,蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流,以降低至少一个高压过热器和至少一个再热器的温度,并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。

    FUEL HEATING SYSTEM
    14.
    发明申请
    FUEL HEATING SYSTEM 有权
    燃油加热系统

    公开(公告)号:US20120055157A1

    公开(公告)日:2012-03-08

    申请号:US12875072

    申请日:2010-09-02

    IPC分类号: F03G6/00 F01K3/00

    摘要: A system may include an insulated water tank configured to store a first heated water from a first plant component during operation of a plant, and a fuel heater comprising a heat exchanger, wherein the heat exchanger is configured to transfer heat from the first heated water to a fuel for a gas turbine engine during startup of the plant.

    摘要翻译: 系统可以包括隔热水箱,其被配置为在设备运行期间存储来自第一设备部件的第一加热水,以及包括热交换器的燃料加热器,其中所述热交换器构造成将热量从第一加热水转移到 在工厂启动期间用于燃气涡轮发动机的燃料。

    Systems and Methods for Pre-Warming a Heat Recovery Steam Generator and Associated Steam Lines
    15.
    发明申请
    Systems and Methods for Pre-Warming a Heat Recovery Steam Generator and Associated Steam Lines 有权
    用于预热热回收蒸汽发生器和相关蒸汽管线的系统和方法

    公开(公告)号:US20100236240A1

    公开(公告)日:2010-09-23

    申请号:US12405561

    申请日:2009-03-17

    IPC分类号: F01K7/34

    摘要: Embodiments of the invention can provide systems and methods for pre-warming a heat recovery steam generator and associated steam lines. According to one embodiment, a method for pre-warming a heat recovery steam generator can be provided. The method can include providing heating steam from a steam source. The heating steam is directed from the steam source to a superheater so that at least a portion of the superheater can be warmed. Once exiting the superheater, the heating steam can be further directed from the superheater to at least one bypass line and maintained in the bypass line until the bypass line attains a predefined temperature or pressure. Furthermore, the method can include directing, after the bypass line attains a predefined temperature or pressure, at least a portion of the heating steam from the bypass line to a reheater so that the reheater can be warmed.

    摘要翻译: 本发明的实施例可以提供用于预热热回收蒸汽发生器和相关蒸汽管线的系统和方法。 根据一个实施例,可以提供一种用于预热热回收蒸汽发生器的方法。 该方法可以包括从蒸汽源提供加热蒸汽。 加热蒸汽从蒸汽源引导到过热器,使得过热器的至少一部分可以被加热。 一旦离开过热器,加热蒸汽可以进一步从过热器引导到至少一条旁通管线并保持在旁路管线中,直到旁路管线达到预定的温度或压力。 此外,该方法可以包括在旁路管路达到预定温度或压力之后引导加热蒸汽的至少一部分从旁通管路到再热器,从而可以加热再热器。

    METHODS AND APPARATUS FOR STARTING UP COMBINED CYCLE POWER SYSTEM
    16.
    发明申请
    METHODS AND APPARATUS FOR STARTING UP COMBINED CYCLE POWER SYSTEM 审中-公开
    用于启动组合循环电力系统的方法和装置

    公开(公告)号:US20090158738A1

    公开(公告)日:2009-06-25

    申请号:US12197712

    申请日:2008-08-25

    IPC分类号: F02K5/00

    CPC分类号: F01K23/108 Y02E20/16

    摘要: Methods and apparatus for fast starting and loading a combined cycle power system are described. In one example embodiment, a method for starting a combined cycle power generation system is provided. The system includes a gas turbine and a steam turbine. The method includes loading the gas turbine at a loading rate that is facilitated to be at an increased loading rate, setting a first predetermined value for a bypass pressure set point for high-pressure steam, and increasing the first predetermined value to a second predetermined value at a predetermined rate.

    摘要翻译: 描述了用于快速启动和加载联合循环电力系统的方法和装置。 在一个示例实施例中,提供了一种用于启动组合循环发电系统的方法。 该系统包括燃气轮机和汽轮机。 该方法包括以便于加载速度加快的负载速度装载燃气轮机,为高压蒸汽设定旁路压力设定点的第一预定值,将第一预定值增加到第二预定值 以预定速率。

    Combined cycle power plant including a heat recovery steam generator
    17.
    发明授权
    Combined cycle power plant including a heat recovery steam generator 有权
    联合循环发电厂包括热回收蒸汽发生器

    公开(公告)号:US08984892B2

    公开(公告)日:2015-03-24

    申请号:US13283045

    申请日:2011-10-27

    摘要: A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.

    摘要翻译: 联合循环发电厂包括气体涡轮机,可操作地耦合到气体涡轮机的蒸汽涡轮机,以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机,蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流,以降低至少一个高压过热器和至少一个再热器的温度,并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。

    Method and apparatus for combined cycle power plant startup
    18.
    发明授权
    Method and apparatus for combined cycle power plant startup 有权
    联合循环发电厂启动的方法和装置

    公开(公告)号:US08528314B2

    公开(公告)日:2013-09-10

    申请号:US12698227

    申请日:2010-02-02

    IPC分类号: F02C7/26

    摘要: A combined cycle power plant startup system is provided. The system includes a steam turbine, a HRSG, a condenser, and a bypass system. The steam turbine may include a turbine section. The HRSG may be operably connected to the steam turbine for providing steam to the steam turbine. The HRSG may include a reheater. The bypass system may be configured to adjust the steam pressure downstream of the reheater by routing steam downstream of the reheater to the condenser. The bypass system may include at least one bypass line, at least one control valve operably connected to the at least one bypass line, a pressure gauge configured to monitor the steam pressure downstream of the reheater, and a controller configured to communicate with the pressure gauge and operate the at least one control valve.

    摘要翻译: 提供了一个联合循环发电厂启动系统。 该系统包括蒸汽轮机,HRSG,冷凝器和旁路系统。 蒸汽轮机可以包括涡轮机部分。 HRSG可以可操作地连接到蒸汽涡轮机,以向蒸汽轮机提供蒸汽。 HRSG可能包括一个再加热器。 旁通系统可以被配置为通过将再热器下游的蒸汽路由到冷凝器来调节再热器下游的蒸汽压力。 旁通系统可以包括至少一个旁通管线,至少一个可操作地连接到至少一个旁通管线的控制阀,配置成监测再热器下游的蒸汽压力的压力计,以及配置成与压力计连通的控制器 并操作至少一个控制阀。

    Combined Cycle Power Plant Including a Heat Recovery Steam Generator
    19.
    发明申请
    Combined Cycle Power Plant Including a Heat Recovery Steam Generator 有权
    包括热回收蒸汽发生器的联合循环发电厂

    公开(公告)号:US20120036828A1

    公开(公告)日:2012-02-16

    申请号:US13283045

    申请日:2011-10-27

    IPC分类号: F02C6/00 F01K13/00

    摘要: A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively coupled to the gas turbomachine, and a heat recovery steam generator operatively coupled to the gas turbomachine and the steam turbomachine. The heat recovery steam generator includes a high pressure reheat section provided with at least one high pressure superheater and at least one reheater. The combined cycle power plant further includes a controller operatively connected to the gas turbomachine, the steam turbomachine and the heat recovery steam generator. The controller is selectively activated to initiate a flow of steam through the heat recovery steam generator following shutdown of the gas turbomachine to lower a temperature of at least one of the high pressure superheater and the at least one reheater and reduce development of condensate quench effects during HRSG purge of a combined cycle power plant shutdown.

    摘要翻译: 联合循环发电厂包括气体涡轮机,可操作地耦合到气体涡轮机的蒸汽涡轮机,以及可操作地耦合到气体涡轮机和蒸汽涡轮机的热回收蒸汽发生器。 热回收蒸汽发生器包括设置有至少一个高压过热器和至少一个再热器的高压再热部分。 联合循环发电厂还包括可操作地连接到气体涡轮机,蒸汽涡轮机和热回收蒸汽发生器的控制器。 选择性地激活控制器以在关闭气体涡轮机之后启动通过热回收蒸汽发生器的蒸汽流,以降低至少一个高压过热器和至少一个再热器的温度,并减少冷凝器骤冷效应的发展 联合循环发电厂的HRSG清除关闭。

    METHODS RELATING TO TURBINE ENGINE CONTROL AND OPERATION
    20.
    发明申请
    METHODS RELATING TO TURBINE ENGINE CONTROL AND OPERATION 审中-公开
    关于涡轮发动机控制和运行的方法

    公开(公告)号:US20100307157A1

    公开(公告)日:2010-12-09

    申请号:US12480187

    申请日:2009-06-08

    IPC分类号: F02C7/224 F02C7/08

    摘要: A method of controlling a combustion turbine engine, wherein the engine includes: a fuel line including a heat exchange portion; a heating value meter; a cold leg bypass comprising an alternate fuel line that bypasses the heat exchange portion, the cold leg bypass being connected to the fuel line at an upstream fork and at a fuel mixing junction, the fuel mixing junction being positioned such that a length of fuel line between it and the inlet to the combustor is short; and valves for controlling the amount of fuel being directed through the heat exchange portion; the method comprising: measuring the heating value of the fuel; determining a target fuel temperature range based on the heating value and a target Modified Wobbe Index range; and controlling the fuel that bypasses the heat exchange portion such that the temperature of the fuel is within the target temperature range.

    摘要翻译: 一种控制燃气涡轮发动机的方法,其中,所述发动机包括:燃料管线,包括热交换部分; 一个发热量表; 冷腿旁路,其包括绕过热交换部分的替代燃料管路,冷腿旁路在上游叉和燃料混合连接处连接到燃料管路,燃料混合连接点被定位成使得燃料管线的长度 它与燃烧器入口之间的距离很短; 以及阀,用于控制通过所述热交换部分引导的燃料量; 该方法包括:测量燃料的热值; 基于所述加热值和目标修正沃泊指数范围确定目标燃料温度范围; 以及控制绕过所述热交换部分的燃料,使得所述燃料的温度在目标温度范围内。