往复式压缩机十字头轴瓦温度无线光纤传感在线监测机理
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摘要
针对石化行业往复式压缩机十字头轴瓦温度在运动过程中难以监测的技术难题,结合往复式压缩机十字头往复运动的特点,提出了一种往复式压缩机十字头轴瓦温度无线光纤传感在线监测方法,研究了它的无线监测机理、方法及无线信号输出特性,结果显示采用该方法在20%的能量耦合效率时仍可以进行温度监测,表明该监测机理具有可行性。
According to the technical problems of the moving crosshead bearing temperature monitoring problems of a reciprocating compressor in petrochemical industry,combined with the characteristics of reciprocating compressor crosshead reciprocating motions,an wireless optical fiber sensing online-monitoring method for crosshead bearings of reciprocating compressors was presented.The wireless mechanism,monitoring method and the characteristics of wireless fiber sensing output were studied.The results show that the method may still monitor temperature with the 20% energy transfer efficiency,which shows the feasibity of the wireless fiber sensing online-monitoring method.
According to the technical problems of the moving crosshead bearing temperature monitoring problems of a reciprocating compressor in petrochemical industry,combined with the characteristics of reciprocating compressor crosshead reciprocating motions,an wireless optical fiber sensing online-monitoring method for crosshead bearings of reciprocating compressors was presented.The wireless mechanism,monitoring method and the characteristics of wireless fiber sensing output were studied.The results show that the method may still monitor temperature with the 20% energy transfer efficiency,which shows the feasibity of the wireless fiber sensing online-monitoring method.
引文
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[6]朱晓明,南秋明.基于光纤传感技术的往复式压缩机振动监测研究[J].武汉理工大学学报,2013,35(4):116-119.ZHU Xiaoming,NAN Qiuming.Study on Vibration Monitoring of Reciprocating Compressor Based on FBG Sensing Technology[J].Journal of Wuhan University of Technology,2013,35(4):116-119.
[7]XU M G,ARCHAMBAULT J L,REEKIE L,et al.Discrimination between Strain and Temperature Effects Using Dual-wavelength Fibre Grating Sensors[J].Electronics Letters,1994,30(13):1085-1086.
[8]MI L,YAO S,SUN C,et al.A Single-channel Fiber Optic Rotary Joint on the Basis of TEC Fiber Collimators[C]//9th International Conference on Optical Communications and Networks(ICOCN2010).New York:IET,2010:437-440.
[9]ZHANG R,GE C,LI S.Analysis of the Graded-index Fiber-lens Using Thin Lens Equivalent[J].Journal of Optoelectronics Laser,2005,16(12):38-40.
[10]EMKEY W,JACK C.Analysis and Evaluation of Graded-index Fiber Lenses[J].Journal of Lightwave Technology,1987,5(9):1156-1164.
[11]PALAIS J C.Fiber Coupling Using Graded-index Rod Lenses[J].Applied Optics,1980,19(12):2011-2018.
[12]李榴,李毅,郑秋心.基于热扩芯光纤的光纤准直器特性研究[J].激光与光电子学进展,2012(6):77-82.LI Liu,LI Yi,ZHENG Qiuxin.Characteristics of Fiber Collimator Based on Thermally Expanded Core Fiber[J].Laser&Optoelectronics Progress,2012(6):77-82.
[13]纪经伟.往复式压缩机十字头故障分析与处理[J].广东化工,2009,36(11):164-165.JI Jingwei.Crosshead Malfunction Analysis&Maintaining for Reciprocating Compressor[J].Guangdong Chemical Industry[J].2009,36(11):164-165.