管道共振监测分析方法研究  

Monitoring and Analysis Methods for Pipe Resonance

作　　者：沈继忱[1] 季玲玉[1] 付俊杰[1] 

机构地区：[1]东北电力大学自动化工程学院,吉林吉林132012

出　　处：《化工自动化及仪表》2012年第11期1477-1478,1528,共3页Control and Instruments in Chemical Industry

摘　　要：为减小管道共振对工业生产及管线使用寿命造成的危害,首次提出利用LabVIEW对管道共振进行在线监测分析研究,并利用SFPCI-6122数据采集卡和PC机自带声卡编程对系统的稳定性进行验证。采集卡采集管道内压力脉动和机械振动产生的电信号,并通过LabVIEW编程对振动信号进行时域分析、谱分析和小波分析,对数据进行保存分析,实现报警及事故追忆等功能。通过在线监测及时采取相应的减振措施,保障生产安全。硬件部分主要包括传感器、调理电路、数据采集卡和计算机;软件部分主要完成信号采集处理等功能。In order to reduce pipe resonance,applying LabVIEW to on-line monitoring of pipeline resonance and checking system stability with SFPCI-6122 data acquisition card and the PC with a sound card programming was proposed.The sensor,conditioning circuit,data acquisition card and PC jointly constitute its hardware and the software portion accomplishes signal acquisition and processing;the data acquisition card collects pipeline pressure pulsation and mechanical vibration signals,and the time-domain analysis,spectral analysis and wavelet analysis of vibration signals can be implemented through the LabVIEW programming,meanwhile, other functions like saving data for analysis,alarm and accident recalling can be realized.

关 键 词：管道共振 LABVIEW 在线监测 信号采集 

分 类 号：TH865[机械工程—仪器科学与技术]