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    • 7. 发明申请
    • STEAM TURBINE BLADE VIBRATION MONITOR BACKPRESSURE LIMITING SYSTEM AND METHOD
    • 蒸汽涡轮叶片振动监测器背压限制系统和方法
    • US20150128596A1
    • 2015-05-14
    • US14077571
    • 2013-11-12
    • Edward David ThompsonMichael Twerdochlib
    • Edward David ThompsonMichael Twerdochlib
    • F01D21/14
    • F01D21/14F01D5/26F01D25/04F01D25/06F01K7/04F01K7/14F01K7/22F01K7/24F01K13/02F02C9/00F05D2220/31F05D2260/80F05D2270/334F05D2270/803
    • A blade vibration monitor backpressure limiting system (BVMBLS), that in addition to direct blade vibration and condenser backpressure monitoring utilizes other plural types of other parallel, real time monitored power plant operation state (OS) information that influences blade vibration. The system references previously stored information in an information storage device that associates respective types of monitored OS information with blade vibration. The BVMBLS determines in real time a likelihood of whether any of the monitored operation states, alone or in combination with other types of monitored operation states, is indicative of a turbine blade vibration safe operation (SO). The BVMBLS determination is utilized to increase or reduce power generation load incrementally so that power efficiency and maximum load is enhanced while turbine blade vibration is maintained in a safe operation state. The previously stored information is updated to new association information.
    • 叶片振动监测器背压限制系统(BVMBLS)除了直接叶片振动和冷凝器背压监测之外,还利用影响叶片振动的其他多种类型的其他并行实时监测的发电厂运行状态(OS)信息。 该系统将先前存储的信息引用到信息存​​储设备中,该信息存储设备将各种监视的OS信息与刀片振动相关联。 BVMBLS实时确定是否单独或与其他类型的监视操作状态组合的任何监视的操作状态是否表示涡轮叶片振动安全操作(SO)的可能性。 BVMBLS确定用于增加或减少发电负载,从而提高功率效率和最大负载,同时涡轮叶片振动保持在安全运行状态。 先前存储的信息被更新为新的关联信息。
    • 10. 发明申请
    • SENSOR FOR MEASURING BLADE TIP CLEARANCE IN GAS TURBINES
    • 用于测量气体涡轮机中的叶片间隙的传感器
    • WO2015053920A1
    • 2015-04-16
    • PCT/US2014/056426
    • 2014-09-19
    • SIEMENS ENERGY, INC.
    • SZEDLACSEK, Peter
    • F01D11/14F01D17/02F01D21/00F01D21/04G01B21/16G01D3/036G01B7/14
    • G01B7/14F01D11/14F01D17/02F01D21/003F01D21/04F05D2270/80F05D2270/802F05D2270/803F05D2270/821G01D3/0365G01D5/241
    • Method for determining a distance (208) between stationary (36) and moving (14) portions of a turbo machine including generating, by a fixed gap capacitive probe (201), a first output signal based on a characteristic of a gas in a gas flow path of the turbo machine, wherein the fixed gap capacitive probe is located in the stationary portion and is configured to sense a characteristic of a gas flowing through the gas flow path. Also, a variable gap capacitive probe (203), located adjacent the fixed gap capacitive probe, is used to generate a second output signal based on a distance between the variable gap capacitive probe and the moving portion, wherein the variable gap probe is configured to capacitively couple to the moving portion of the turbo machine. Afterwards, the value of the second output signal can be adjusted based on the first output signal to produce an adjusted output signal.
    • 用于确定涡轮机的固定(36)和运动(14)部分之间的距离(208)的方法,包括通过固定间隙电容式探针(201)产生基于气体中气体的特性的第一输出信号 所述涡轮机的流路,其中所述固定间隙电容式探针位于所述静止部分中,并且被配置为感测流过所述气体流路的气体的特性。 而且,位于固定间隙电容式探针附近的可变间隙电容探针(203)用于基于可变间隙电容探针与移动部分之间的距离产生第二输出信号,其中可变间隙探针被配置为 电容地耦合到涡轮机的移动部分。 此后,可以基于第一输出信号来调整第二输出信号的值,以产生经调整的输出信号。