基于漏磁无损检测技术的矿井管道缺陷监测系统设计  

Design of mine pipeline defect monitoring system based on magnetic flux leakage nondestructive testing technology

作　　者：常映辉 CHANG Yinghui(Taiyuan Research Institute Company,China Coal Science and Industry Corporation,Taiyuan 030051,China;Yulin Tiandi Coal Machinery Equipment Company,Yulin 719000,China;National Engineering Laboratory for Coal Mining Machinery and Equipment,Taiyuan 030051,China)

机构地区：[1]中国煤炭科工集团太原研究院有限公司,山西太原030051 [2]榆林天地煤机装备有限公司,陕西榆林719000 [3]煤矿采掘机械装备国家工程实验室,山西太原030051

出　　处：《中国矿业》2023年第2期77-82,共6页China Mining Magazine

摘　　要：针对现有矿山供排水系统中老旧管网改造、管道缺陷修复、新建管网等工作执行过程中的安全隐患,本文提出了一种基于漏磁无损检测技术的矿井管道缺陷监测系统设计。该系统采用节点化设计,各节点核心装置电子舱在其他辅助舱段协同配合下,通过对管道内壁存在腐蚀、机械损伤等体积性缺陷处的外溢磁力线信号和里程轮信号进行采集、混合编帧、存储等操作,将各节点数据由无线通信模块返回至井上监测中心上位机进行解码分析,对节点缺陷位置进行精准识别,定位精度达到0.01 m,系统节点和缺陷位置的井上实时显示效果符合预期。同时,本文还在管道缺陷有限元仿真的基础上通过模拟对比实验对系统有效性进行了验证。Aiming at the safety hazards in the implementation of the old pipe network reconstruction,pipe defect repair and new pipe network in the existing mine water supply and drainage system,this paper proposes a mine pipeline defect monitoring system design based on magnetic flux leakage nondestructive testing technology.Node design is applied in this system,the core technology of each node electronic module in conjunction with the other auxiliary tank section together,through the pipe wall corrosion,mechanical damage such as volume defects in the spillover of the lines of magnetic force signal and mileage wheel signal gathering,mixed encoding frame,store operations,such as the data of all nodes by wireless communication module after returned to the monitoring center decoding analysis,the analytical results show that each node of the system can accurately identify the defect location,and the positioning accuracy reaches 0.01 m.The real-time display effect of the system node and the defect location on the well meets the expectation.Meanwhile,based on the finite element simulation of pipeline defects,the effectiveness of the system is verified by simulation and comparison experiment.

关 键 词：漏磁检测 外溢磁力线信号 缺陷监测 矿井管道 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]