摘要
大型储罐底板和壁板为变板厚结构,针对特定板厚设计的漏磁检测仪无法适用于变板厚的大型储罐检测。为解决这一问题,提出一种漏磁信号可检测性评价方法,以1×10^(5)m^(3)储罐为研究对象,建立漏磁检测磁化器的三维有限元模型,对仿真得到的变板厚漏磁信号进行分析,最终得到适用于12~32mm变板厚大型储罐的磁化器结构参数和磁力值。
Large storage tanks adopt a plate structure with varied thickness in the bottom and wall panels.Magnetic flux leakage detector designed for specific thickness plate can’t be applied to these large storage tanks with varied thicknesses plate.In order to solve this problem,an evaluation method for the detectability of magnetic flux leakage signals was proposed,which having a 1×10^(5) m^(3) storage tank taken as the object of study to establish a 3D finite element model of the magnetic flux leakage detection magnetizer so as to analyze the magnetic flux leakage signals of varied thicknesses plate obtained by simulation.Finally,the magnetizer structure parameters and magnetic forces suitable for large storage tanks with varied thicknesses plate of 12-32mm were obtained.
作者
金泽淏
武新军
JIN Ze-hao;WU Xin-jun(School of Mechanical Science and Engineering,Huazhong University of Science and Technology)
出处
《化工自动化及仪表》
CAS
2021年第3期232-237,242,共7页
Control and Instruments in Chemical Industry
基金
国家重点研发计划项目(2019YFB1310703)。
关键词
漏磁检测
大型储罐
变板厚
磁化器
漏磁信号可检测性评价方法
有限元分析
magnetic flux leakage testing
large storage tank
varied thicknesses plate
magnetizer
evaluation method for the detectability of magnetic flux leakage signals
finite element analysis
