Gas turbine control method and apparatus
    2.
    发明授权
    Gas turbine control method and apparatus 失效
    燃气轮机控制方法及装置

    公开(公告)号:US5584171A

    公开(公告)日:1996-12-17

    申请号:US365439

    申请日:1994-12-28

    IPC分类号: F02C9/50

    CPC分类号: F02C9/50 F05D2270/071

    摘要: A gas turbine engine control method and apparatus as disclosed for optimizing fuel/air mixture, especially during decreasing load conditions. In a large capacity gas turbine engine system used for generation of electric power, the system is designed to operate at a relatively constant rotational speed of the turbine which drives an electric generator unit. The load of the turbine engine varies throughout the day due to changes in electrical power demands. During normal rated load conditions, the control of the fuel/air mixture is by way of changes in fuel supply, corrected to return the turbine exhaust temperature to a desired rated temperature. During this mode of operation, the compressor inlet guide vanes are maintained in a substantially constant open position. For accommodating decreasing load conditions where the temperature drops below a predetermined temperature level below the rated temperature operation, the system is switched to an inlet guide vane control mode of operation. During the guide vane control mode of operation, the inlet guide vanes are controlled at a more precise temperature correction sensitivity than is the case for normal load operations. This more precise inlet guide vane control during decreasing load conditions assures improved fuel/air mixture during decreasing load and consequent improved efficiency and minimal NO.sub.x compound emissions, especially during changing ambient temperature conditions where cold air would otherwise increase the air supply.

    摘要翻译: 公开的用于优化燃料/空气混合物的燃气涡轮发动机控制方法和装置,特别是在减小负载条件下。 在用于产生电力的大容量燃气涡轮发动机系统中,该系统设计成以驱动发电机单元的涡轮机的相对恒定的转速运行。 由于电力需求的变化,涡轮发动机的负载在一整天内变化。 在正常的额定负载条件下,燃料/空气混合物的控制是通过燃料供应的变化来进行的,这被校正以将涡轮排气温度恢复到所需的额定温度。 在这种操作模式下,压缩机入口导叶保持在基本恒定的打开位置。 为了适应温度下降到低于额定温度运行的预定温度水平的降低负载条件,系统被切换到入口导叶控制操作模式。 在导叶控制操作模式下,入口导流叶片的控制精度比正常加载操作更为精确。 在降低负载条件下,这种更为精确的入口引导叶片控制确保了在减少负载的同时改善了燃料/空气混合物,从而提高了效率和最小化的NOx化合物排放,特别是在其他空气会增加空气供给的环境温度变化的环境中。

    Gas turbine and a gas turbine control method
    4.
    发明授权
    Gas turbine and a gas turbine control method 失效
    燃气轮机和燃气轮机控制方法

    公开(公告)号:US5878566A

    公开(公告)日:1999-03-09

    申请号:US976362

    申请日:1997-10-21

    摘要: A control method of a gas turbine which is provided with a multi can type combustor consisting of a plurality of unit combustors, each of which has a first stage combustion section for diffusion combustion and a second stage combustion section for premix combustion. Combustion states in the first and second stage combustion sections are monitored to take in quantities representative of the combustion conditions as control factors. The combustion in the second stage combustion section is assumed to be abnormal when the taken in quantities exceed an allowable limit and the combustion in the first and second stage combustion sections is changed to independent combustion only in the first stage combustion section when the number of unit combustors, each of which is assumed to be abnormal, exceeds a predetermined number of the unit combustors.

    摘要翻译: 一种燃气轮机的控制方法,其具备由多台单元燃烧器构成的多罐式燃烧器,所述多台式燃烧器具有扩散燃烧用的第一级燃烧部和预混燃烧用的第二级燃烧部。 监测第一和第二阶段燃烧段中的燃烧状态以代表燃烧条件的数量作为控制因素。 当第二级燃烧部分的燃烧次数超过允许极限时,第二级燃烧部分中的燃烧被认为是异常的,并且当第一级燃烧部分中的燃烧单元数量单位 每个被认为是异常的燃烧器超过预定数量的单元燃烧器。

    Combustor system for stabilizing a premixed flame and a turbine system
using the same
    5.
    发明授权
    Combustor system for stabilizing a premixed flame and a turbine system using the same 失效
    用于稳定预混火焰的燃烧器系统和使用其的涡轮机系统

    公开(公告)号:US5319936A

    公开(公告)日:1994-06-14

    申请号:US948225

    申请日:1992-09-21

    CPC分类号: F23R3/286 F23D23/00 F23R3/34

    摘要: First and second premixed burners having annular injection slots are concentrically adjacent and the injection slots are substantially aligned with each other in a longitudinal direction of the burners. A pilot burner is provided substantially in the center of the annular first premixed burner so that the injection slot of the pilot burner is substantially aligned with the injection slot of the first premixed burner in a longitudinal direction of the burner. A flame holder which forms a circulating flow of combusted gas Gh downstream of the flame holder is disposed at the downstream end of a boundary wall between the premixed burners so that the flame holder is co-used by the premixed burners. Flow rate adjusting means for adjusting the flow rate of fuel supplied to the first, second premixed burner and the pilot burner, respectively are provided. The fuel can be substantially uniformly mixed with a combustion gas. Reduction in NOx and stabilization of premixed flame can be achieved.

    摘要翻译: 具有环形注入槽的第一和第二预混合燃烧器同心地相邻并且喷射槽在燃烧器的纵向方向上彼此基本对齐。 主要燃烧器基本上设置在环形第一预混合燃烧器的中心,使得引燃燃烧器的喷射槽在燃烧器的纵向方向上基本上与第一预混燃烧器的喷射槽对准。 形成火焰保持器下游的燃烧气体Gh的循环流的火焰保持器设置在预混合燃烧器之间的边界壁的下游端,使得火焰保持器由预混燃烧器共同使用。 提供了用于分别调节供应到第一,第二预混合燃烧器和引燃燃烧器的燃料的流量的流量调节装置。 燃料可以与燃烧气体基本均匀地混合。 可以实现NOx的还原和预混火焰的稳定化。

    Control apparatus and a control method of a gas turbine combustor
    7.
    发明授权
    Control apparatus and a control method of a gas turbine combustor 失效
    燃气轮机燃烧器的控制装置和控制方法

    公开(公告)号:US5339620A

    公开(公告)日:1994-08-23

    申请号:US872139

    申请日:1992-04-22

    IPC分类号: F02C9/28 F02C9/50 F23R3/26

    CPC分类号: F23R3/26

    摘要: A control apparatus of a gas turbine combustor obtains a stable combustion with limited NOx emission through a control of a fuel flow rate according to a turbine output and a control of a flow rate of intake air mixed with the fuel. The control apparatus includes an apparatus for detecting at least one of the temperature and the humidity of intake air taken into the combustor, an apparatus for determining and storing, in advance, a stable combustion limit line between a stable combustion region and an unstable combustion region, on a plane of coordinates of a ratio of fuel flow rate to an intake air flow rate or an intake air flow rate and the temperature or the humidity of the intake air, on each turbine load, an apparatus for detecting an instant operational point of the combustor on the plane of coordinates, and an apparatus for correcting the intake air flow rate or the ratio of fuel flow rate to the intake air flow rate according to an increase in the detected temperature or humidity so that the instant operational point does not cross the stable combustion limit line.

    摘要翻译: 燃气轮机燃烧器的控制装置通过根据涡轮机输出控制燃料流量和控制与燃料混合的进气的流量来获得具有有限NOx排放的稳定燃烧。 控制装置包括用于检测进入燃烧器的进气的温度和湿度中的至少一个的装置,用于预先确定和存储稳定燃烧区域和不稳定燃烧区域之间的稳定燃烧极限线的装置 在每个涡轮机负载上的燃料流量比与进气流量或进气流量之比的坐标平面和进气的温度或湿度之间,检测即时操作点的装置 坐标平面上的燃烧器,以及用于根据检测到的温度或湿度的增加来校正进气流量或燃料流量与进气流量比的装置,使得即时操作点不交叉 稳定燃烧极限线。

    Control apparatus and a control method of a gas turbine combustor
    8.
    发明授权
    Control apparatus and a control method of a gas turbine combustor 失效
    燃气轮机燃烧器的控制装置和控制方法

    公开(公告)号:US5477670A

    公开(公告)日:1995-12-26

    申请号:US260231

    申请日:1994-06-14

    IPC分类号: F02C9/28 F02C9/50 F23R3/26

    CPC分类号: F23R3/26

    摘要: A control apparatus of a gas turbine combustor for effecting a stable combustion with limited NOx emission through a control of a fuel flow rate according to a turbine output and a control of a flow rate of intake air mixed with the fuel comprises: means for detecting at least one of the temperature and the humidity of an intake air to be taken into the combustor; means for determining and storing, in advance, a stable combustion limit line between a stable combustion region and an unstable combustion region, on a plane of coordinates of a ratio of fuel flow rate/intake air flow rate or an intake air flow rate and the temperature or the humidity of the intake air, on each turbine load; means for detecting an instant operational point of the combustor on the plane of coordinates; and means for correcting an intake air flow rate or a ratio of fuel flow rate to the intake air flow rate according to an increase in the detected temperature or humidity so that the operational point does not cross the stable combustion limit line.

    摘要翻译: 一种燃气轮机燃烧器的控制装置,用于通过根据涡轮机输出控制燃料流量和控制与燃料混合的进气的流量来实现有限的NOx排放的稳定燃烧,包括:用于在 进入燃烧器的进气的温度和湿度中的至少一个; 用于在燃料流量/进气流量或进气流量比的坐标平面上预先确定和存储稳定燃烧区域和不稳定燃烧区域之间的稳定燃烧极限线的装置,以及 温度或进气的湿度,在每个涡轮机负载上; 用于在坐标平面上检测燃烧器的即时操作点的装置; 以及用于根据检测到的温度或湿度的增加来校正进气流量或燃料流量与进气流量比的比例的装置,使得操作点不超过稳定燃烧极限线。

    Remote monitoring diagnostic system and method thereof
    10.
    发明授权
    Remote monitoring diagnostic system and method thereof 有权
    远程监控诊断系统及其方法

    公开(公告)号:US06999903B2

    公开(公告)日:2006-02-14

    申请号:US11033318

    申请日:2005-01-12

    IPC分类号: G06F19/00

    摘要: The remote monitoring diagnostic system and method includes a data storage file used to collect the plant data representing the operation status of a plant and to store the plant data, a monitoring system to monitor the field plant according to the collected plant data, a database storing the past plant data associated with errors having occurred to the plant and actions taken to cope with the errors, a diagnostic system to analyze the plant data sent according to the database, and a reporting system to send a report to the user of the plant regarding the causes for the error and/or actions taken to cope with the error based on the result of the analysis. An error is judged in a combustor, when a difference in temperature of two exhaust gas temperature datum detected from adjacent combustors is larger than a predetermined value.

    摘要翻译: 远程监控诊断系统和方法包括用于收集表示工厂操作状态的工厂数据并存储工厂数据的数据存储文件,根据收集的工厂数据监控现场设备的监控系统,存储 与工厂发生的错误相关联的过去工厂数据以及用于处理错误的动作,用于分析根据数据库发送的工厂数据的诊断系统,以及向工厂用户发送报告的报告系统 基于分析结果的错误和/或采取的处理错误的原因。 当从相邻燃烧器检测到的两个排气温度数据的温差相差大于预定值时,在燃烧室中判断出误差。