会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 53. 发明公开
    • Compressor blade monitoring system
    • Verdichterschaufelüberwachungssystem
    • EP2848776A2
    • 2015-03-18
    • EP14184199.9
    • 2014-09-10
    • General Electric Company
    • Yu, LijieAnsari, AdilBadami, Vivek VenugopalBliss, John ThomasChadha, RahulGupta, Rajan
    • F01D21/00F01D21/14
    • F04D27/001F01D21/00F01D21/003F01D21/04F01D21/10F01D21/14F02C9/00F03D17/00F04D29/324F05D2260/80F05D2260/81G01B7/14G01B11/14G01B21/16G01D21/00G06F17/40G06F19/00
    • A system 2 including: at least one computing device 120 configured to monitor a compressor blade 10 in a turbomachine 5 by: extracting time of arrival (TOA) data about the compressor blade 10 at a defined interval; correlating turbomachine operating conditions with the TOA data; extracting resonance data about the compressor blade 10 during startup or shutdown of the turbomachine 5, and extracting static deflection and tip clearance data about the compressor blade 10 during steady state operation of the turbomachine 5; creating a baseline compressor blade comparison level based upon the extracted resonance data, extracted static deflection and tip clearance data, and correlation between the turbomachine operating conditions and the TOA data; and iteratively extracting updated TOA data and performing the correlating, the extracting of the resonance data, static deflection and tip clearance data using the updated TOA data at the defined interval to create an updated baseline compressor blade comparison level.
      Corresponding computer program product with a program code executed by such a computing device.
    • 系统2包括:至少一个计算设备120,被配置为通过以下定义的间隔提取关于压缩机叶片10的到达时间(TOA)数据来监测涡轮机5中的压缩机叶片10. 将涡轮机操作条件与TOA数据相关联; 在涡轮机5的启动或关闭期间提取关于压缩机叶片10的共振数据,以及在涡轮机5的稳态操作期间提取关于压缩机叶片10的静态偏转和叶尖间隙数据; 基于提取的共振数据,提取的静态偏转和尖端间隙数据以及涡轮机操作条件和TOA数据之间的相关性来创建基准压缩机叶片比较水平; 并且迭代地提取更新的TOA数据并且以所定义的间隔执行关联,提取共振数据,静态偏转和提前间隙数据,以创建更新的基线压缩机叶片比较水平。 具有由这种计算设备执行的程序代码的相应的计算机程序产品。
    • 55. 发明公开
    • A method of detecting and localizing partial rotor-stator rubbing during the operation of a turbine
    • 涡轮机的操作期间检测和局部转子Statorreibung的位置的方法
    • EP2746541A2
    • 2014-06-25
    • EP13196683.0
    • 2013-12-11
    • Doosan Skoda Power S.r.o.Západoceská Univerzita V Plzni
    • Cerný, Václav, Ing.Liska, Jindrich
    • F01D25/04F01D25/16F01D19/00F01D21/00F01D21/04F01D11/20F02C9/28
    • G01M13/045F01D11/20F01D19/00F01D21/003F01D21/04F01D25/04F01D25/164F02C9/28G01H1/006G01M15/14
    • The invention relates to a method of detecting and localizing partial rotor-stator rubbing during the operation of a turbine, in which the rotor (1) of the turbine is monitored by means of at least one pair of sensors (3, 30, 4, 40) of the rotor vibrations arranged in one plane of measuring (330, 440) perpendicular to the axis of the rotor (1) and by at least one pair of sensors of the absolute vibrations of the bearings (2, 20). When using this method of processing, synchronically digitalized signals of the sensors (3, 30, 4, 40) of rotor vibrations, first the arithmetic mean of the individual harmonic bands in full spectrum in the frequency domain is calculated, by which means the information about the subharmonic components and their multiples in the full spectrum of these signals is transfered into the frequency band -1 X to 1 X (where X indicates the rotational frequency of the rotor (1)), at the same time is by the calculation of the median estimated the level of the signal noise, with which individual frequency bands of the full spectrum are encumbered, and which is subtracted from the amplitudes in the individual frequency bands of full spectrum of the signals of the sensors. Thus normalized accumulated full spectrum of the signals of the sensors of rotor vibrations is created, in which, subsequently, the amplitude of the predetermined subharmonic component/components of the signals of rotor vibrations is compared with the amplitudes of the frequency components in its proximity determined by the Fourier transform or by approximation with the Fourier series. Simultaneously, the presence of the monitored subharmonic component of the signals of the rotor vibrations in the spectrum of these signals is deduced, on the basis of which subsequently the occurrence of rotor-stator rubbing is deduced. In case of the rubbing occurrence the place/places of the turbine where it takes place is further localized.
    • 本发明的涡轮,其中,所述转子(1)的涡轮机的,借助于监视的至少一对传感器(3,30,4的的手术过程中涉及检测的方法和定位部分转子 - 定子研磨, 在一个平面内垂直于所述转子(1)的轴线和由至少一对轴承(2,20)的绝对值的振动传感器的测量(330,440)的转子振动的40)。 当使用处理的方法中,所述传感器的转子振动的synchronically数字化信号(3,30,4,40)中,首先在频域全谱的单个谐波频带计算的算术平均值,通过该装置中的信息 关于分谐波成分及其在合成信号的全谱的倍数被转移到频带 - 1 X 1到X(其中X表示转子的旋转频率(1)),在同一时间是通过计算 中值估计的信号的噪声的电平,与该全光谱的各个频带被担保,并且所有这一切都被从幅度在所述传感器的信号的全谱的各个频带中减去。 转子振动的传感器的信号。因此归一化累积的全谱被创建,其中,随后,转子振动的信号的预定谐波分量/分量的振幅与频率分量的在其附近的幅度确定性开采相比 由傅立叶变换或用傅立叶级数近似。 同时,在合成信号的频谱中的转子振动的信号的监测次谐波成分的存在推导出,在此基础上的转子 - 定子研磨的随后发生推导上。 在发生摩擦的地方的情况下,/它发生在涡轮机的地方进一步本地化。