基于光纤传感技术的易燃易爆气体泄漏监测研究Research on Leakage Monitoring of Flammable and Explosive Gas based on Optical Fiber Sensing Technology
刘洋,高文傲,李登科,李明明,余凡,陈先锋
摘要(Abstract):
针对目前易燃易爆气体泄漏监测手段的不足,提出了一种使用光纤光栅传感技术进行实时监测的方法。根据实际工况搭建了管道输气系统,使用空气作为传输介质模拟了易燃易爆气体发生泄漏的过程。通过对监测点管道的振动加速度进行采集,利用降噪和傅里叶、变换的信号处理手段,对振动波形进行分析。结果表明:在管道发生泄漏时,管道振动的振动加速度会发生一定程度的减小,振动主频会略微变大。通过光纤光栅传感技术,对振动特征参数进行分析和计算,可实现管道泄漏点准确定位。
关键词(KeyWords): 气体;泄漏;光纤光栅;监测
基金项目(Foundation): 国家重点研发计划(2017KYC0804705);; 国家自然科学基金(NSFC51774221)
作者(Author): 刘洋,高文傲,李登科,李明明,余凡,陈先锋
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