基于FBG机械连接部件微渗漏监测应用  

Application on Micro Leakage Monitoring of Mechanical Connecting Parts Based on FBG

作　　者：胡健 雒燕[1] 刘瑾[2] 魏世杰 何承宗 李明阳 张晨阳 HU Jian;LUO Yan;LIU Jin;WEI Shijie;HE Chengzong;LI Mingyang;ZHANG Chenyang(School of Engineering Audit,Nanjing Audit University,Nanjing 211815,Jiangsu,China;School of Earth Sciences and Engineering,Hohai University,Nanjing 211100,Jiangsu,China)

机构地区：[1]南京审计大学工程审计学院,江苏南京211815 [2]河海大学地球科学与工程学院,江苏南京211100

出　　处：《中国海洋平台》2022年第6期28-34,共7页China offshore Platform

基　　金：国家自然科学基金面上项目(编号:41877212);国家重点研发计划(编号:2018YFC1508501)。

摘　　要：简要介绍光纤布拉格光栅(Fiber Bragg Grating,FBG)温度传感器的传感原理,利用FBG传感技术对温度变化的敏感性,将FBG传感器在机械管道连接部件渗漏监测中进行实际应用。通过测量渗漏处产生的温差,分析管道连接系统的连接状态,并设计试验对其可行性及影响因素进行探究。结果表明:当用于渗漏监测时,该方法可在短时间内对温度的变化产生反应,从而有效地对渗漏进行预警,在无风环境下可测出1.81℃的渗漏稳定温差,具有可行性;风速、水温两个因素会对稳定温差产生影响,该方法在风速较大、水温与环境温度相差较大时具有更良好的渗漏监测效果。The sensing principle of Fiber Bragg Grating(FBG)temperature sensor is briefly introduced.Using the sensitivity of FBG sensing technology to temperature change,FBG sensor is applied in the leakage monitoring of the mechanical pipeline connection.By measuring the temperature difference at the leakage,the connection state of the pipeline connection system is analyzed,and the test is designed to explore its feasibility and influencing factors.The results show that:this method can respond to the change of temperature in a short time,so as to effectively warn the leakage,the stable temperature difference of 1.81℃can be measured in the windless environment,which shows that the method is feasible;the two factors of wind speed and water temperature can affect the stable temperature difference,so this method is of better leakage monitoring effect when the wind speed is large and the difference between water temperature and ambient temperature is large.

关 键 词：FBG传感器 温差测量 液体渗漏 

分 类 号：TE973[石油与天然气工程—石油机械设备]