Method and apparatus for actuating fuel trim valves in a gas turbine
    1.
    发明授权
    Method and apparatus for actuating fuel trim valves in a gas turbine 有权
    用于在燃气轮机中启动燃油调节阀的方法和装置

    公开(公告)号:US07188465B2

    公开(公告)日:2007-03-13

    申请号:US10704302

    申请日:2003-11-10

    IPC分类号: F02C7/22 F02C9/26

    摘要: The gas turbines of the present invention have multiple combustion chambers, and within each chamber are multiple fuel nozzles. Each nozzle has its own fuel control valve to control the fuel flowing to the nozzles. To minimize the pressure drop through the fuel control valves, multiple manifolds are employed. Each manifold supplies at least one fuel nozzle in multiple combustion chambers with fuel. The fuel control valves are mounted on the manifolds such that the weight of the fuel control valves and nozzles are carried by the manifolds, not the multiple combustion chambers. A plurality of thermocouples for measuring exhaust gas from said multiple combustion chambers are employed to sense gas exhaust temperature. In carrying out the methods of the present invention for tuning a gas turbine, it is essential to note that the most efficient gas turbine is one which has the least nitrous oxides, the least amount of unburned hydrocarbons, and the least amount of carbon monoxide for a specified energy output. In order to tune the gas turbine to accomplish these objectives, it is desirable that each combustion chamber in the gas turbine be well balanced relative to the remaining combustion chambers. It is an aim of the present invention to tune each of the multiple combustion chambers such that no specific combustion chamber is rich or lean, and all are operating within about 1% of the remaining combustion chambers.

    摘要翻译: 本发明的燃气轮机具有多个燃烧室,并且在每个室内都有多个燃料喷嘴。 每个喷嘴都有自己的燃料控制阀,以控制流向喷嘴的燃料。 为了最小化通过燃料控制阀的压降,采用多个歧管。 每个歧管在具有燃料的多个燃烧室中提供至少一个燃料喷嘴。 燃料控制阀安装在歧管上,使得燃料控制阀和喷嘴的重量由歧管而不是多个燃烧室承载。 用于测量来自所述多个燃烧室的废气的多个热电偶用于感测排气温度。 在执行用于调谐燃气轮机的本发明的方法时,必须注意的是,最有效的燃气轮机是具有最少一氧化二氮,最少量的未燃碳氢化合物和最少量的一氧化碳的燃气轮机 指定能量输出。 为了调整燃气涡轮机以实现这些目的,期望燃气涡轮机中的每个燃烧室相对于剩余的燃烧室良好平衡。 本发明的目的是调节多个燃烧室中的每个,使得没有特定的燃烧室是富的或者是贫的,并且都在剩余的燃烧室的大约1%的范围内运行。

    Method and apparatus for actuating fuel trim valves in a gas turbine

    公开(公告)号:US07260937B2

    公开(公告)日:2007-08-28

    申请号:US11670542

    申请日:2007-02-02

    IPC分类号: F02C7/22 F02C9/26

    摘要: The gas turbines of the present invention have multiple combustion chambers, and within each chamber are multiple fuel nozzles. Each nozzle has its own fuel control valve to control the fuel flowing to the nozzles. To minimize the pressure drop through the fuel control valves, multiple manifolds are employed. Each manifold supplies at least one fuel nozzle in multiple combustion chambers with fuel. The fuel control valves are mounted on the manifolds such that the weight of the fuel control valves and nozzles are carried by the manifolds, not the multiple combustion chambers. A plurality of thermocouples for measuring exhaust gas from said multiple combustion chambers are employed to sense gas exhaust temperature. In carrying out the methods of the present invention for tuning a gas turbine, it is essential to note that the most efficient gas turbine is one which has the least nitrous oxides, the least amount of unburned hydrocarbons, and the least amount of carbon monoxide for a specified energy output. In order to tune the gas turbine to accomplish these objectives, it is desirable that each combustion chamber in the gas turbine be well balanced relative to the remaining combustion chambers. It is an aim of the present invention to tune each of the multiple combustion chambers such that no specific combustion chamber is rich or lean, and all are operating within about 1% of the remaining combustion chambers.

    SYSTEM AND METHOD FOR REDUCING COMBUSTION DYNAMICS IN A TURBOMACHINE
    7.
    发明申请
    SYSTEM AND METHOD FOR REDUCING COMBUSTION DYNAMICS IN A TURBOMACHINE 审中-公开
    用于减少涡轮机燃烧动力学的系统和方法

    公开(公告)号:US20130133331A1

    公开(公告)日:2013-05-30

    申请号:US13751301

    申请日:2013-01-28

    IPC分类号: F23R3/28

    摘要: A turbomachine includes a combustion chamber, and at least one pre-mixer mounted to the combustion chamber. The at least one pre-mixer includes a main body having a first end portion that extends to a second end portion. The first end portion is configured to receive an amount of fuel and an amount of air and the second end portion defines an exit plane from which a fuel-air mixture discharges into the combustion chamber. The turbomachine also includes a combustion dynamics reduction system operatively coupled to the at least one pre-mixer. The combustion dynamics reduction system includes at least one of a boundary layer perturbation mechanism and an acoustic wave introduction system which disrupt a flow pattern of the fuel-air mixture within the at least one pre-mixer.

    摘要翻译: 涡轮机包括燃烧室,以及安装在燃烧室上的至少一个预混合器。 所述至少一个预混合器包括具有延伸到第二端部的第一端部的主体。 第一端部构造成接收一定量的燃料和一定量的空气,并且第二端部限定了燃料 - 空气混合物从该出口平面排出到燃烧室中。 涡轮机还包括可操作地耦合到至少一个预混合器的燃烧动力学降低系统。 燃烧动力学降低系统包括边界层扰动机构和声波引入系统中的至少一个,其破坏在至少一个预混合器内的燃料 - 空气混合物的流动模式。

    MULTIPHASE PUMP FLOW RECIRCULATION SYSTEM
    8.
    发明申请
    MULTIPHASE PUMP FLOW RECIRCULATION SYSTEM 审中-公开
    多相泵流循环系统

    公开(公告)号:US20110293441A1

    公开(公告)日:2011-12-01

    申请号:US12786946

    申请日:2010-05-25

    IPC分类号: F04B49/00 F01C1/24

    摘要: In accordance with certain aspects of the invention, a pump system is provided. The pump system includes a pump casing having a process fluid inlet chamber connected to a process fluid inlet through the pump casing, and a process fluid outlet chamber connected to a process fluid outlet through the pump casing. The pump system also includes rotors disposed inside the process fluid inlet chamber and the process fluid outlet chamber. The rotors are configured to pump a process fluid from the process fluid inlet chamber to the process fluid outlet chamber. In addition, the pump casing comprises one or more fluid injection inlets axially located between the process fluid inlet and the process fluid outlet.

    摘要翻译: 根据本发明的某些方面,提供一种泵系统。 泵系统包括泵壳体,其具有连接到通过泵壳体的工艺流体入口的工艺流体入口室和连接到通过泵壳体的工艺流体出口的工艺流体出口室。 泵系统还包括设置在过程流体入口室和过程流体出口室内的转子。 转子被构造成将过程流体从过程流体入口室泵送到过程流体出口室。 此外,泵壳体包括轴向位于过程流体入口和过程流体出口之间的一个或多个流体注入入口。