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    • 66. 发明申请
    • METHOD FOR THE PREDICTION OF SURGE IN A GAS COMPRESSOR
    • 在气体压缩机中预测浪涌的方法
    • WO2017029131A1
    • 2017-02-23
    • PCT/EP2016/068760
    • 2016-08-05
    • SIEMENS AKTIENGESELLSCHAFT
    • KRISHNABABU, Senthil
    • G06F17/50F01D1/02F04D27/00
    • G06F17/5018F04D27/001F05D2260/81F05D2260/821F05D2270/101G06F2217/16
    • A computer implemented method (100) for the prediction of the surge point of a compressor (14) comprises the following steps: - generating (110) a plurality of meshes: - a compressor inlet mesh (220), - at least a compressor rotor stage mesh (225), - a compressor outlet mesh (235), representing a plurality of exit guide vanes (236) and an exit nozzle (37) and extending up to a final nozzle exit area (240), - assembling (120) the plurality of meshes (220, 225, 235) to obtain the CFD domain (250), - specifying boundary conditions (130) of the computational domain (250), - specifying atmospheric pressure conditions (140) at the final nozzle exit area (40), - computing (150) compressor inlet mass flow rate and compressor pressure ratio, - if the numerical stability limit is not reached then: - decreasing (180) dimensions (A1) of the final nozzle exit area (240), - generating again (190) the compressor outlet mesh (235), - repeating said steps of specifying atmospheric pressure (140) at the final nozzle exit area (240), said step of computing (150) and said step of checking (160).
    • 一种用于预测压缩机(14)的喘振点的计算机实施方法(100)包括以下步骤: - 产生(110)多个网格: - 压缩机入口网(220), - 至少一个压缩机转子 (225), - 表示多个出口导叶(236)和出口喷嘴(37)并延伸到最终喷嘴出口区域(240)的压缩机出口网(235), - 组装(120) 多个网格(220,225,235)以获得CFD域(250), - 指定计算域(250)的边界条件(130), - 指定最终喷嘴出口区域(140)处的大气压力条件(140) - 计算(150)压缩机入口质量流量和压缩机压力比, - 如果未达到数值稳定性极限则: - 最终喷嘴出口区域(240)的减小(180)尺寸(A1), - 产生 再次(190)压缩机出口网孔(235), - 重复所述步骤,以指定大气压力(140) 最终喷嘴出口区域(240),所述计算步骤(150)和所述检查步骤(160)。
    • 67. 发明申请
    • SYSTEM AND METHOD FOR EVALUATING OPPORTUNITIES TO EXTEND OPERATING DURATIONS
    • 评估机会扩大经营期限的系统和方法
    • WO2015175181A1
    • 2015-11-19
    • PCT/US2015/027191
    • 2015-04-23
    • GENERAL ELECTRIC COMAPANY
    • SARDA, RajashPAWLOWSKI, Joseph, VincentSINHA, Sudip
    • F01D21/00
    • F01D21/00F05D2260/80F05D2260/81F05D2260/82
    • Aspects of the present disclosure relate generally to a system and corresponding method and program product for evaluating opportunities to extend operating durations. A system according to the present disclosure can include: a computing device in communication with a machine amongst a plurality of machines within a machine system, the machine being subject to a particular operating duration, wherein the computing device is configured to perform actions including: examining operating data for the machine; modeling future performance data for the machine; calculating an operating duration extension risk for the machine; determining whether the machine is eligible for an operating duration extension based on the examined operating data, the modeled future performance data, and the calculated operating duration extension risk; and calculating an extension readiness metric for the machine in response to the machine being eligible for the operating duration extension.
    • 本公开的方面通常涉及用于评估延长操作持续时间的机会的系统和相应的方法和程序产品。 根据本公开的系统可以包括:计算设备,其与机器系统内的多个机器中的机器通信,所述机器经受特定的操作持续时间,其中所述计算设备被配置为执行动作,包括:检查 机器运行数据; 为机器的未来性能数据建模; 计算机器的运行时间延长风险; 基于所检查的操作数据,建模的未来性能数据和计算的运行时间延长风险来确定机器是否符合运行期限延长的资格; 以及响应于所述机器符合所述操作持续时间扩展的条件,计算所述机器的扩展准备度量。
    • 68. 发明申请
    • ESTIMATION OF HEALTH PARAMETERS IN INDUSTRIAL GAS TURBINES
    • 工业气体涡轮机健康参数的估计
    • WO2015117791A1
    • 2015-08-13
    • PCT/EP2015/050335
    • 2015-01-09
    • SIEMENS AKTIENGESELLSCHAFT
    • PANOV, Vili
    • G05B23/02
    • G05B23/0221F02C9/00F05D2260/80F05D2260/81
    • Estimation of Health Parameters in Industrial Gas Turbines The present invention relates to a method for determining a deviation value of a health parameter, in particular a capacity or an efficiency parameter, of at least one component (101, 102, 103, 104, 105) of a gas turbine (100). According to the method a pressure value and a temperature value at a measuring point of the component (101, 102, 103, 04, 105) is measured. A corrected pressure value is determined on the basis of a predetermined pressure correction factor of the component (101, 102, 103, 104, 105). A corrected temperature value is determined on the basis of a predetermined temperature correction factor of the component (101, 102, 103, 104, 105). An estimated actual value of the health parameter of the component (101, 102, 103, 104, 105) is determined on the basis of the corrected pressure value, the corrected temperature value and e.g. measured shaft speed. A nominal value of the health parameter of the component (101, 102, 103, 104, 105) which is predicted on the basis of at least one predetermined input parameter is determined. Finally, a deviation value of a health parameter is determined by comparing the estimated actual value and the nominal value.
    • 工业燃气轮机中健康参数的估计技术领域本发明涉及用于确定至少一个部件(101,102,103,104,105)的健康参数的偏差值,特别是容量或效率参数的方法, 的燃气轮机(100)。 根据该方法,测量部件(101,102,103,04,105)的测量点处的压力值和温度值。 基于组件(101,102,103,104,105)的预定压力校正因子来确定校正压力值。 基于组件(101,102,103,104,105)的预定温度校正因子来确定校正温度值。 基于校正的压力值,校正的温度值和例如校正的温度值来确定组件(101,102,103,104,105)的健康参数的估计实际值。 测量轴转速。 确定基于至少一个预定输入参数预测的组件(101,102,103,104,105)的健康参数的标称值。 最后,通过比较估计的实际值和标称值来确定健康参数的偏差值。