相关分析法在地下蒸汽管道泄漏检测中的应用

Application of Correlation Analysis in Leakage Detection of Underground Steam Pipeline

针对地下蒸汽管道泄漏原因复杂、能源浪费严重等问题,采用虚拟仪器技术、自动检测技术和相关分析法,快速便捷地建立了地下蒸汽泄漏检测系统。在检测过程中,检测人员安装两个超声波传感器用来拾取蒸汽管道漏点发出的超声波,并通过数据采集系统和应用分析软件对两通道超声波信号进行分析和处理,确定信号的时差,准确计算出泄漏点的位置。试验研究表明,相关分析法在地下蒸汽管道泄漏检测中的应用取得了较好的效果,值得推广应用。

Aiming at the complex reasons of leakage of underground steam pipelines and the serious waste of energy,the leakage detection system for underground steam pipelines is quickly built by using virtual instrument technology and correlation analysis method.In detection procedures,the inspector installs two of the ultrasonic sensors to collect the ultrasonic signals coming from the leakage points,these signals are analyzed and processed through data acquisition system and application analysis software to determine the time difference for precisely calculating the positions of the leakage points.The test research indicates that the correlation analysis method obtains better effects in leakage detection;it is worth to be propagated in applications.