不锈钢罐底板微泄漏检测与分析  

Detection and Analysis of Micro Leakage in Stainless Steel Tank Bottom Plate

作　　者：张伟刚[1] 肖鹏[1] 汤小剑[1] 李旭东 ZHANG Weigang;XIAO Peng;TANG Xiaojian;LI Xudong(Special Equipment Safety Supervision Inspection of Jiangsu Province,Nanjing 210003,China)

机构地区：[1]江苏省特种设备安全监督检验研究院,江苏南京210003

出　　处：《化工管理》2025年第6期115-118,共4页Chemical Management

基　　金：基于检测信息的危险品储罐群完整性管理及风险预警系统研发与应用(KJ(Y)202406)。

摘　　要：文章以一台盛装苯类物质的不锈钢常压罐底板微泄漏案例为切入点,通过分析不同液位下不锈钢储罐底板微泄漏的声发射特征参数,区分了泄漏声发射特征信号与底板腐蚀产生的信号之间的差异,探究了储罐底板间歇性泄漏的可能原因。通过对不同液位下声发射检测特征信号的差异分析,实现了对储罐泄漏的定量分析和底板泄漏点的精确定位。在清洗储罐后,采用真空箱检测方法对底板泄漏点进行了验证,成功发现了直径小于3 mm的微泄漏孔,有效地验证了利用声发射无损检测技术对不锈钢储罐底板进行在线泄漏检测的可行性。同时,利用有限元模拟深入分析泄漏孔产生的原因,为不锈钢储罐底板泄漏的在线检测及相关应用提供了有价值的实践参考。This paper takes a e of micro leakage from the bottom plate of a stainless steel atmospheric tank containing benzene substances as the starting point.By analyzing the acoustic emission acteristic parameters of micro leakage from the bottom plate of a stainless steel tank at different liquid levels,the differences between the acoustic emission acteristic signals of leakage and those generated by bottom plate corrosion are distinguished,and the possible causes of intermittent leakage from the bottom plate of the tank are explored.By analyzing the difference in acteristic signals of acoustic emission detection at two different liquid levels,quantitative analysis of tank leakage and precise positioning of bottom plate leakage can be achieved.After cleaning the tank,a vacuum box inspection was carried out to verify the leakage location on the bottom plate,and micro leakage holes with a diameter of less than 3 millimeters were successfully discovered,effectively verifying the feasibility of using acoustic emission non-destructive testing technology for online leakage detection of stainless steel tank bottom plates.At the same time,the use of finite element simulation to deeply analyze the causes of leakage holes provides valuable practical reference for online detection and related applications of stainless steel tank bottom plate leakage.

关 键 词：不锈钢储罐 声发射 微渗漏 模拟 

分 类 号：TG142.7[一般工业技术—材料科学与工程]