Advanced ASU and HRSG integration for improved integrated gasification combined cycle efficiency
    11.
    发明授权
    Advanced ASU and HRSG integration for improved integrated gasification combined cycle efficiency 有权
    高级ASU和HRSG集成,提高整体气化联合循环效率

    公开(公告)号:US08075646B2

    公开(公告)日:2011-12-13

    申请号:US11350568

    申请日:2006-02-09

    IPC分类号: C10J3/46

    摘要: A system and method for increasing the efficiency and/or power produced by an integrated gasification combined cycle system by increasing the integration between the air separation unit island, the heat recovery steam generator and the remainder of the system. By integrating heat produced by the heat recovery steam generator in the remainder of the integrated gasification combined cycle system, heat may be utilized that may have otherwise been lost or used further downstream in the system. The integration helps to increase the efficiency of the combustion reaction and/or the gasification reaction used to produce the syngas utilized in the integrated gasification combined cycle system.

    摘要翻译: 一种用于通过增加空气分离单元岛,热回收蒸汽发生器和系统的其余部分之间的集成来提高由综合气化联合循环系统产生的效率和/或功率的系统和方法。 通过将由热回收蒸汽发生器产生的热量集成在综合气化联合循环系统的其余部分中,可以利用可能在系统中另外丢失或进一步下游使用的热量。 整合有助于提高用于一体化气化联合循环系统中使用的合成气的燃烧反应和/或用于产生气化反应的效率。

    System for recovering water from flue gas
    12.
    发明授权
    System for recovering water from flue gas 有权
    烟气回收系统

    公开(公告)号:US07976621B2

    公开(公告)日:2011-07-12

    申请号:US12714721

    申请日:2010-03-01

    IPC分类号: B01D53/14

    CPC分类号: B01D53/263

    摘要: A power plant may include a combustion apparatus (11) producing an exhaust gas (12), an absorber (20) receiving the exhaust gas (12), the absorber (20) including a desiccant and producing a first stream of desiccant solution containing water and a first concentration of desiccant, and an apparatus (29, 70, 94) for dehydrating the first stream of desiccant solution while maintaining the water in a liquid phase. The apparatus (29, 70, 94) may include a heat exchanger (71, 110), a crystallizing heat exchanger (74, 96), a separator (78, 98) and a flash tank (112) for dehydrating the desiccant solution while maintaining water in a liquid phase and subsequently recovering water from the solution.

    摘要翻译: 发电厂可以包括产生废气的燃烧装置(11),接收废气的吸收器(20),所述吸收器(20)包括干燥剂并产生含有水的第一干燥剂溶液流 和第一浓度的干燥剂,以及用于使第一干燥剂溶液流脱水而将水保持在液相中的装置(29,70,94)。 装置(29,70,94)可以包括用于使干燥剂溶液脱水的热交换器(71,110),结晶热交换器(74,96),分离器(78,98)和闪蒸罐(112) 将水保持在液相中,随后从溶液中回收水。

    Combined cycle power plant with auxiliary air-cooled condenser
    13.
    发明授权
    Combined cycle power plant with auxiliary air-cooled condenser 有权
    具有辅助风冷冷凝器的联合循环发电厂

    公开(公告)号:US07367177B2

    公开(公告)日:2008-05-06

    申请号:US11012953

    申请日:2004-12-14

    IPC分类号: F02C6/00 F02G1/00 F02G3/00

    摘要: A combined cycle power plant (20) including a main air-cooled condenser (22) condensing steam at a first pressure and an auxiliary air-cooled condenser (24) condensing steam at a second pressure higher than the first pressure. Designing an air-cooled combined cycle power plant for startup on a hot day can significantly increase the size and cost of the required air-cooled condenser. Adding an auxiliary air-cooled condenser having appropriate thermal characteristics relative to a main air cooled compressor to the steam bypass circuit of an air-cooled combined cycle power plant enables the plant to meet plant startup requirements during periods of peak thermal load in a more cost effective manner than would be achievable with the main air cooled condenser alone.

    摘要翻译: 一种联合循环发电厂(20),其包括在第一压力下冷凝蒸汽的主空气冷凝器(22)和在高于第一压力的第二压力下冷凝蒸汽的辅助空气冷却冷凝器(24)。 设计一个风冷的联合循环发电厂在炎热的一天启动可以显着增加所需的空冷冷凝器的尺寸和成本。 将相对于主空气冷却压缩机具有适当热特性的辅助风冷式冷凝器加入到空气冷却联合循环发电厂的蒸汽旁路回路中,使得该工厂能够在更高成本的峰值热负荷期间满足工厂启动要求 有效的方式比单独使用主要的空气冷却冷凝器可以实现。

    Rankine cycle and steam power plant utilizing the same
    14.
    发明授权
    Rankine cycle and steam power plant utilizing the same 有权
    兰金循环和蒸汽发电厂利用相同

    公开(公告)号:US07325400B2

    公开(公告)日:2008-02-05

    申请号:US10754194

    申请日:2004-01-09

    IPC分类号: F01K13/00

    CPC分类号: F01K19/04 F01K7/40 F01K21/00

    摘要: A steam power plant (100) implementing an improved Rankine cycle (55) wherein steam is injected (82, 96) directly into the energy addition portion of the plant, and the resulting two-phase flow is pressurized by multiphase pumps (88, 98). By relying more heavily on pump pressurization than on a temperature difference for energy injection, plant efficiency is improved over prior art designs since energy injection by pump pressurization results in less irreversibility than energy injection by temperature difference. Direct steam injection and multiphase pumping may be used to bypass the condenser (20), to replace any one or all of the feedwater heaters (24, 32, 34), and/or to provide additional high-pressure energy addition.

    摘要翻译: 实施改进的兰金循环(55)的蒸汽发电厂(100),其中将蒸汽直接注入到设备的能量添加部分中,并且所得到的两相流被多相泵(88,98)加压 )。 通过更多地依赖于泵加压而不是用于能量注入的温度差,与现有技术设计相比,设备效率提高,因为通过泵加压的能量注入导致比通过温度差的能量注入更小的不可逆性。 直接蒸汽注入和多相泵送可用于旁路冷凝器(20),以代替任何一个或所有给水加热器(24,32,34),和/或提供额外的高压能量添加。

    Combined cycle power generation
    15.
    发明申请
    Combined cycle power generation 有权
    联合循环发电

    公开(公告)号:US20080000237A1

    公开(公告)日:2008-01-03

    申请号:US11824421

    申请日:2007-06-29

    IPC分类号: F02C1/00

    摘要: A system (10) and method of modifying a combined cycle power generation system (12, 14, 16, 18). In one embodiment of the invention an existing system includes one or more first gas turbines, one or more first steam turbines, and one or more heat recovery steam generators (HRSGs). An exemplary method includes providing at least one second gas turbine of greater operating efficiency than each of the one or more first gas turbines and connecting at least one existing HRSG to receive exhaust output from the second gas turbine to generate steam. Also according to the invention a path is provided for mixing steam exiting a high pressure steam turbine with steam generated in a low pressure HRSG to route such mixed steam through a reheat section of a high temperature, high pressure HRSG so that reheated mixed steam exiting the reheat section can be routed into a low pressure steam turbine.

    摘要翻译: 一种系统(10)和修改联合循环发电系统(12,14,16,18)的方法。 在本发明的一个实施例中,现有系统包括一个或多个第一燃气轮机,一个或多个第一蒸汽轮机和一个或多个热回收蒸汽发生器(HRSG)。 一种示例性方法包括提供比一个或多个第一燃气轮机中的每一个更高的运行效率的至少一个第二燃气轮机,并且连接至少一个现有的HRSG以接收来自第二燃气轮机的排气输出以产生蒸汽。 还根据本发明,提供了一种路径,用于将离开高压蒸汽轮机的蒸汽与在低压HRSG中产生的蒸汽混合,以将这种混合蒸汽引导通过高温高压HRSG的再热段,使得再加热的混合蒸汽离开 再热段可以路由到低压蒸汽轮机。

    Recuperative steam cooled gas turbine method and apparatus
    16.
    发明授权
    Recuperative steam cooled gas turbine method and apparatus 失效
    回热蒸汽冷却燃气轮机的方法和装置

    公开(公告)号:US5640840A

    公开(公告)日:1997-06-24

    申请号:US354388

    申请日:1994-12-12

    摘要: A recuperative steam cooled gas turbine in which steam used to cool the turbine section is subsequently introduced into the combustors, thereby recuperating the heat absorbed by the steam during cooling. The steam is generated in a heat recovery steam generator and then directed to a manifold within the turbine shell. From the manifold, the steam flows through passages formed within the interior of the vane by a baffle, thereby cooling the vane and heating the steam. The steam is then discharged from the vane into a chamber that collects the compressed air from the compressor. In the chamber, the heated steam mixes with the compressed air and the air/steam mixture then flows into the combustors, where it serves to reduce NOx generation from the combustors and increase power output from the turbine.

    摘要翻译: 随后将用于冷却涡轮机部分的蒸汽引入燃烧器的余热蒸汽冷却燃气轮机,从而使在冷却期间被蒸汽吸收的热量回复。 蒸汽在热回收蒸汽发生器中产生,然后被引导到涡轮壳体内的歧管。 蒸汽通过歧管流过形成在叶片内部的通道,从而冷却叶片并加热蒸汽。 然后将蒸汽从叶片排出到从压缩机收集压缩空气的室中。 在室中,加热的蒸汽与压缩空气混合,然后空气/蒸汽混合物流入燃烧器,用于减少来自燃烧器的NOx产生并增加从涡轮机输出的功率。

    Method and apparatus for warming a steam turbine in a combined cycle
power plant
    17.
    发明授权
    Method and apparatus for warming a steam turbine in a combined cycle power plant 失效
    在联合循环发电厂中加热蒸汽轮机的方法和装置

    公开(公告)号:US5473898A

    公开(公告)日:1995-12-12

    申请号:US384508

    申请日:1995-02-01

    CPC分类号: F01K23/10 Y02E20/16

    摘要: A combined cycle gas turbine power plant uses compressed air bleed from the gas turbine compressor discharge air as a source of warming air for the steam turbine at start-up by incorporating a bypass line from the compressor discharge to the steam chest. During this time period, the steam produced by the heat recovery steam generator is dumped to the condenser. After warming the steam turbine, the compressed air is directed to the heat recovery steam generator for discharge to atmosphere. Once the heat recovery steam generator is capable of generating steam at sufficient temperature and pressure for introduction into the steam turbine, a control valve in the bypass line is closed, thereby eliminating the warming air, and a control valve in the steam supply line from the heat recovery steam generator to the steam turbine is opened so that the steam turbine can be brought on line.

    摘要翻译: 联合循环燃气轮机发电厂使用来自燃气轮机压缩机排放空气的压缩空气排放,作为启动时的蒸汽涡轮机的加温空气源,其中通过将来自压缩机排放口的旁路管路并入蒸汽箱。 在此期间,由热回收蒸汽发生器产生的蒸汽倾倒至冷凝器。 在蒸汽轮机加热之后,压缩空气被引导到热回收蒸汽发生器排放到大气中。 一旦热回收蒸汽发生器能够在足够的温度和压力下产生用于引入蒸汽轮机的蒸汽,旁通管路中的控制阀关闭,从而消除加热空气,并且蒸汽供应管线中的控制阀从 蒸汽轮机的热回收蒸汽发生器被打开,使得蒸汽轮机可以上线。

    Supercritical pressurization of fuel slurry
    18.
    发明授权
    Supercritical pressurization of fuel slurry 失效
    燃料浆超临界加压

    公开(公告)号:US08414667B2

    公开(公告)日:2013-04-09

    申请号:US11351976

    申请日:2006-02-10

    IPC分类号: C10L3/00

    摘要: A system (10) and a method for converting carbonaceous fuel (102) into a gaseous product (42). According to one embodiment a fuel slurry (118) is introduced into a chamber (120) and heated under sufficient pressure to prevent the carrier component (100) from boiling so that the carbonaceous component (102) does not separate from the carrier component (100). The step of heating the carrier component (100) may include increasing pressure and temperature to place the carrier component (100) in a supercritical state while sustaining the carbonaceous component (102) and carrier component (100) in a mixed state. In this embodiment a pump (136) imposes sufficient chamber pressure to prevent boiling of the carrier component (100) as the mixture is heated to at least 345° C., and a gasifier chamber (120) is positioned to receive the gaseous mixture (118) at a lower pressure than the supercritical pressure for creation of syngas (42).

    摘要翻译: 一种系统(10)和将含碳燃料(102)转化为气体产物(42)的方法。 根据一个实施例,将燃料浆料(118)引入到室(120)中并在足够的压力下加热以防止载体组分(100)沸腾,使得碳质组分(102)不与载体组分(100)分离 )。 加热载体组分(100)的步骤可以包括增加压力和温度,以使载体组分(100)处于超临界状态,同时维持混合状态的碳质组分(102)和载体组分(100)。 在该实施例中,当混合物被加热至至少345℃时,泵(136)施加足够的室压力以防止载体部件(100)的沸腾,并且气化器室(120)定位成接收气体混合物 118)在比用于产生合成气(42)的超临界压力更低的压力下。

    Combined cycle power plant including a refrigeration cycle
    19.
    发明授权
    Combined cycle power plant including a refrigeration cycle 有权
    联合循环发电厂包括制冷循环

    公开(公告)号:US08286431B2

    公开(公告)日:2012-10-16

    申请号:US12579586

    申请日:2009-10-15

    IPC分类号: F02C1/00

    CPC分类号: F02C6/18 F01K23/10 Y02E20/16

    摘要: A method and system for augmenting the output of a combined cycle power plant having a gas turbine driving a generator, a heat recovery steam generator that recovers exhaust heat from the gas turbine to drive a steam turbine also driving a generator, and a refrigeration element that is powered by available energy in steam exhausted from the steam turbine to cool water. The refrigeration element employs a substantially closed cycle refrigeration system that is either an absorption chilling system or a thermal compression chilling system. The refrigeration element provides cool water to an inlet chiller arranged to chill inlet to the gas turbine to augment the power output of the gas turbine and the water is recirculated to be chilled and used again. Since the refrigeration cycle is substantially closed, little or no additional plant water consumption is imposed on the power plant.

    摘要翻译: 一种用于增加具有驱动发电机的燃气轮机的联合循环发电厂的输出的方法和系统,从燃气轮机回收废热以驱动发电机的蒸汽轮机的热回收蒸汽发生器,以及还驱动发电机的制冷元件, 由从蒸汽轮机排出的蒸汽中的可用能量供电以冷却水。 制冷元件采用基本上封闭的循环制冷系统,其是吸收冷却系统或热压缩冷却系统。 制冷元件为入口冷却器提供冷却水,冷却器布置成冷却燃气轮机的入口以增加燃气轮机的功率输出,并且水被再循环以被冷却并再次使用。 由于制冷循环基本封闭,所以对发电厂施加额外的植物用水很少或没有。

    Combined cycle power generation
    20.
    发明授权
    Combined cycle power generation 有权
    联合循环发电

    公开(公告)号:US08061002B2

    公开(公告)日:2011-11-22

    申请号:US11824421

    申请日:2007-06-29

    IPC分类号: B21K21/16 F02C1/00

    摘要: A system (10) and method of modifying a combined cycle power generation system (12, 14, 16, 18). In one embodiment of the invention an existing system includes one or more first gas turbines, one or more first steam turbines, and one or more heat recovery steam generators (HRSGs). An exemplary method includes providing at least one second gas turbine of greater operating efficiency than each of the one or more first gas turbines and connecting at least one existing HRSG to receive exhaust output from the second gas turbine to generate steam. Also according to the invention a path is provided for mixing steam exiting a high pressure steam turbine with steam generated in a low pressure HRSG to route such mixed steam through a reheat section of a high temperature, high pressure HRSG so that reheated mixed steam exiting the reheat section can be routed into a low pressure steam turbine.

    摘要翻译: 一种系统(10)和修改联合循环发电系统(12,14,16,18)的方法。 在本发明的一个实施例中,现有系统包括一个或多个第一燃气轮机,一个或多个第一蒸汽轮机和一个或多个热回收蒸汽发生器(HRSG)。 一种示例性方法包括提供比一个或多个第一燃气轮机中的每一个更高的运行效率的至少一个第二燃气轮机,并且连接至少一个现有的HRSG以接收来自第二燃气轮机的排气输出以产生蒸汽。 还根据本发明,提供了一种路径,用于将离开高压蒸汽轮机的蒸汽与在低压HRSG中产生的蒸汽混合,以将这种混合蒸汽引导通过高温高压HRSG的再热段,使得再加热的混合蒸汽离开 再热段可以路由到低压蒸汽轮机。