基于光纤传感技术的易燃易爆气体泄漏监测研究

发布时间：2018-05-11 21:06

本文选题：气体 + 泄漏　；参考：《爆破》2017年04期

【摘要】：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。
[Abstract]:In view of the shortage of current flammable and explosive gas leakage monitoring means, a method of real-time monitoring using fiber Bragg grating sensing technology is proposed. A pipeline gas transmission system is built according to the actual working conditions. Air is used as a transmission medium to simulate the process of leakage of flammable and explosive gas. The vibration acceleration of the monitoring point pipe is achieved. The vibration wave is analyzed by means of noise reduction and signal processing by Fu Liye and transformation. The results show that the vibration acceleration of the pipe will decrease to a certain extent and the main frequency of the vibration will be slightly larger when the pipeline leaks. The vibration characteristic parameters are analyzed and calculated by the fiber grating transmission technology. The accurate location of the leakage point of the pipeline is realized.

【作者单位】：武汉电力职业技术学院电力工程系;武汉理工大学资源与环境工程学院;
【基金】：国家重点研发计划(2017KYC0804705) 国家自然科学基金(NSFC51774221)
【分类号】：O659

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