Stator blade airfoil profile for a compressor
    3.
    发明授权
    Stator blade airfoil profile for a compressor 有权
    用于压缩机的定子叶片翼型

    公开(公告)号:US07467926B2

    公开(公告)日:2008-12-23

    申请号:US11449770

    申请日:2006-06-09

    IPC分类号: F01D9/00

    CPC分类号: F04D29/544 Y10S416/02

    摘要: Tenth stage stator vanes for a compressor comprise airfoil profiles substantially in accordance with Cartesian coordinate values of x, Y and Z set forth in inches in Table I, wherein the Z coordinate values are perpendicular distances from planes normal to a radius from the compressor centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at a radial aerodynamic section of the airfoil. X and Y are coordinate values defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled to provide a scaled-up or scaled-down airfoil section for each stator vane.

    摘要翻译: 用于压缩机的第十级定子叶片包括基本上按照表I中以英寸列出的x,Y和Z的笛卡尔坐标值的翼型,其中Z坐标值是垂直于距离压缩机中心线的半径的平面的垂直距离,以及 包含在翼型的径向空气动力学部分处的X,Y平面中从零开始的Z值的X和Y值。 X和Y是在每个距离Z处定义翼型轮廓的坐标值.X,Y和Z值可以被缩放以为每个定子叶片提供放大或缩小的翼型部分。

    Method for ascertaining surge pressure ratio in compressors for turbines
    5.
    发明授权
    Method for ascertaining surge pressure ratio in compressors for turbines 失效
    确定涡轮压缩机的浪涌压力比的方法

    公开(公告)号:US06220086B1

    公开(公告)日:2001-04-24

    申请号:US09169007

    申请日:1998-10-09

    IPC分类号: F02C700

    摘要: The surge pressure ratio of a compressor is determined by transiently reducing the inlet flow to the compressor to increase the compressor pressure ratio sufficiently to produce the surge pressure ratio. The reduction in flow of fluid is maintained for a time period insufficient to exceed the exhaust gas temperature limit for the turbine. The area of the first-stage nozzle of the turbine is reduced and the inlet flow to the compressor is reduced to a steady state to achieve pressure ratios, in close proximity to the surge line. By transiently further reducing the inlet flow to the compressor and then increasing the inlet flow back to the steady-state condition, the surge pressure ratio can be obtained without exceeding machine operational limits.

    摘要翻译: 压缩机的喘振压力比通过瞬时减小到压缩机的入口流量来确定,以充分提高压缩机压力比以产生浪涌压力比。 流体的流动减少维持不到超过涡轮机废气温度极限的时间。 涡轮机的第一级喷嘴的面积减小,并且到达压缩机的入口流量减小到稳定状态,以实现紧靠喘振线路的压力比。 通过暂时进一步减小进入压缩机的入口流量,然后将入口流量增加回稳定状态,可以在不超过机器操作限制的情况下获得喘振压力比。

    SYSTEMS AND METHODS FOR PROVIDING SURGE PROTECTION TO A TURBINE COMPONENT
    6.
    发明申请
    SYSTEMS AND METHODS FOR PROVIDING SURGE PROTECTION TO A TURBINE COMPONENT 有权
    用于向涡轮机组件提供防护的系统和方法

    公开(公告)号:US20100269481A1

    公开(公告)日:2010-10-28

    申请号:US12428769

    申请日:2009-04-23

    IPC分类号: F02C9/00

    摘要: Systems and methods for providing surge protection to turbine components are provided. A surge protection limit may be determined for the turbine component. One or more measurements associated with operation of the turbine component may be received and provided to a cycle model executed to predict an operating condition of the turbine component. The predicted operating condition of the turbine component may be adjusted based at least in part on the received one or more measurements. The surge protection limit may be adjusted based on the adjusted predicted operating condition of the turbine component.

    摘要翻译: 提供了用于向涡轮机部件提供喘振保护的系统和方法。 可以为涡轮机部件确定浪涌保护极限。 可以接收与涡轮机部件的操作相关联的一个或多个测量,并且将其提供给执行以预测涡轮机部件的操作状态的循环模型。 可以至少部分地基于所接收的一个或多个测量来调整涡轮机部件的预测操作状态。 浪涌保护极限可以根据调整后的涡轮机部件的运行状况进行调整。

    Method for evaluating compressor stall/surge margin requirements

    公开(公告)号:US06574584B2

    公开(公告)日:2003-06-03

    申请号:US09732811

    申请日:2000-12-11

    IPC分类号: G06F1500

    CPC分类号: F04D27/02

    摘要: A method is provided for evaluating stall/surge margin of a machine of interest. The method includes identifying a vital factor where each the vital factors corresponds to operation of the machine of interest. Raw data relating to the vital factor is provided. A contribution of the vital factor to the stall/surge margin is determined from at least the provided raw data. The contribution of the vital factor to the stall/surge margin is statistically analyzed. A stall/surge margin is allocated based on the statistical analysis of the contribution of the vital factor. An operating limit line is defined based on the allocation of the stall/surge margin.

    Systems and methods for providing surge protection to a turbine component
    8.
    发明授权
    Systems and methods for providing surge protection to a turbine component 有权
    为涡轮机部件提供喘振保护的系统和方法

    公开(公告)号:US08322145B2

    公开(公告)日:2012-12-04

    申请号:US12428769

    申请日:2009-04-23

    IPC分类号: F02C7/00

    摘要: Systems and methods for providing surge protection to turbine components are provided. A surge protection limit may be determined for the turbine component. One or more measurements associated with operation of the turbine component may be received and provided to a cycle model executed to predict an operating condition of the turbine component. The predicted operating condition of the turbine component may be adjusted based at least in part on the received one or more measurements. The surge protection limit may be adjusted based on the adjusted predicted operating condition of the turbine component.

    摘要翻译: 提供了用于向涡轮机部件提供喘振保护的系统和方法。 可以为涡轮机部件确定浪涌保护极限。 可以接收与涡轮机部件的操作相关联的一个或多个测量,并且将其提供给执行以预测涡轮机部件的操作状态的循环模型。 可以至少部分地基于所接收的一个或多个测量来调整涡轮机部件的预测操作状态。 浪涌保护极限可以根据调整后的涡轮机部件的运行状况进行调整。

    Stator blade airfoil profile for a compressor
    9.
    发明申请
    Stator blade airfoil profile for a compressor 有权
    用于压缩机的定子叶片翼型

    公开(公告)号:US20070286718A1

    公开(公告)日:2007-12-13

    申请号:US11449770

    申请日:2006-06-09

    IPC分类号: F01D9/00

    CPC分类号: F04D29/544 Y10S416/02

    摘要: Tenth stage stator vanes for a compressor comprise airfoil profiles substantially in accordance with Cartesian coordinate values of x, Y and Z set forth in inches in Table I, wherein the Z coordinate values are perpendicular distances from planes normal to a radius from the compressor centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at a radial aerodynamic section of the airfoil. X and Y are coordinate values defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled to provide a scaled-up or scaled-down airfoil section for each stator vane.

    摘要翻译: 用于压缩机的第十级定子叶片包括基本上按照表I中以英寸列出的x,Y和Z的笛卡尔坐标值的翼型,其中Z坐标值是垂直于距离压缩机中心线的半径的平面的垂直距离,以及 包含在翼型的径向空气动力学部分处的X,Y平面中从零开始的Z值的X和Y值。 X和Y是在每个距离Z处定义翼型轮廓的坐标值.X,Y和Z值可以被缩放以为每个定子叶片提供放大或缩小的翼型部分。

    Method of air-flow measurement and active operating limit line management for compressor surge avoidance
    10.
    发明授权
    Method of air-flow measurement and active operating limit line management for compressor surge avoidance 有权
    空气流量测量方法和压缩机浪涌回避的主动运行限制线路管理

    公开(公告)号:US06364602B1

    公开(公告)日:2002-04-02

    申请号:US09478523

    申请日:2000-01-06

    IPC分类号: F04D1714

    摘要: A transfer function between the inlet air-flow consumed by a Gas Turbine engine, and the engine parameters of speed, pressure ratio, and Inlet Guide Vane (IGV) angle is described. An active compressor Operating Limit Line (OLL) management strategy that leverages this improved flow measurement transfer function is also described. The improved flow measurement capability afforded by the transfer function permits a deterioration in flow rate caused by compressor fouling to be detected. Using the deterioration in flow rate as a proxy for compressor fouling, a degraded surge boundary associated with fouling can be predicted, using a transfer function between degradation of air-flow along operating line and degradation of surge line. In combination, the inventive improvements in flow measurement and operating line management afford added compressor surge protection across the operating range, while permitting the attainment of elevated pressure ratios associated with high thermodynamic efficiency and output.

    摘要翻译: 描述了燃气轮机发动机消耗的入口气流与速度,压力比和进气导叶(IGV)角度的发动机参数之间的传递函数。 还描述了利用这种改进的流量测量传递功能的主动压缩机操作限制线(OLL)管理策略。 通过传递函数提供的改进的流量测量能力允许检测到由压缩机污垢引起的流量的劣化。 使用流量的劣化作为压缩机污染的代理,可以使用在沿着操作线的气流的劣化和喘振线的劣化之间的传递函数来预测与结垢相关的劣化的浪涌边界。 结合起来,本发明的流量测量和操作管线管理的改进在整个操作范围内提供了增加的压缩机喘振保护,同时允许获得与高热力学效率和输出相关联的升高的压力比。