常压储罐底板腐蚀速率与声发射活度的相关性探讨
Correlation between Atmospheric Storage Tank Bottom Corrosion Rate and Acoustic Emission Activity
摘 要
常压储罐底板声发射在线检测是一种不用开罐而评估罐底腐蚀状况的无损检测技术,根据检测结果可以对储罐腐蚀状况进行分级.通过分析声发射信号的幅度分布和开罐检测后腐蚀减薄量分布规律,结果发现,两者都具有相似的幂函数形式,表明底板腐蚀具有分形特征,找出两者的相关性,实现了通过声发射活度定量描述底板的腐蚀速率大小,进而可预测底板的腐蚀剩余寿命.
腐蚀
声发射活度
分形维数
相关性
storage tank
corrosion
acoustic emission activity
fractal dimension
correlation
Abstract
Acoustic emission (AE) on-line testing is a nondestructive testing (NDT) technology to evaluate the tank bottom corrosion without opening the atmospheric storage tank (AST),the degree of tank corrosion can be classified based on the inspection results.Through the analysis of the acoustic emission signal amplitude distribution and tank bottom corrosion thickness loss distribution,it is found that the two distributions have similar power function form,indicating that the bottom corrosion has fractal dimension characteristic.According to the correlation,the floor corrosion rate of the tank bottom can be quantitatively described,and its residual life can be further predicted by acoustic emission activity.
中图分类号 TG174 TQ050.9 DOI 10.11973/fsyfh-201506015
所属栏目 应用技术
基金项目 国家自然科学基金(51301201)
收稿日期 2014/5/26
修改稿日期
网络出版日期
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备注李自力(1963-),教授,博士生导师,从事油气储运系统安全工程研究.
引用该论文: BI Hai-sheng,LI Zi-li,CHENG Yuan-peng,CHEN Jian-fei,WANG Jun. Correlation between Atmospheric Storage Tank Bottom Corrosion Rate and Acoustic Emission Activity[J]. Corrosion & Protection, 2015, 36(6): 573
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参考文献
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【2】JB/T 10764-2007无损检测-常压金属储罐声发射检测及评价方法[S].
【3】杨明纬,耿荣生.声发射检测[M].第一版.北京:机械工业出版社,2005.
【4】李光海,沈功田,闫河.常压储罐声发射检测技术[J].无损检测,2010,32(4):256-258.
【5】闫河,沈功田,李光海.常压储罐底板特性的声发射检测[J].压力容器,2008,125(2):53-56.
【6】林明春,辛爱华,高金杰.罐底声发射在线检测及其可靠性验证[J].油气储运,2010,29(10):776-779.
【7】李一博,孙立瑛,靳世久.大型常压储罐底板的声发射在线检测[J].天津大学学报,2008,41(1):11-16.
【8】张涛,李一博,王伟魁.声发射技术在罐底腐蚀检测中的应用与研究[J].传感技术学报,2010,23(7):1049-1052.
【9】BI H S,LI Z L,CHENG Y P,et al.The corrosion acoustic emission source location technique and its new trend[J].Advanced Materials Research,2013,694:1167-1172.
【10】CHEN J F,BI H S,WANG Q,et al.The application of acoustic emission technology in oil and gas storage and transportation equipment[J].Advanced Materials Research,2013,807:2652-2657.
【11】SHIGENORI Y,MINORU Y,KAZUYOSHI S,et al.Recommended practice for acoustic emission testing for corrosion in the bottom plate of aboveground tanks[J].Materials Evaluation,2007,9:888-892.
【12】LI Z W,YUYAMA S,YAMADA M,et al.Investigation on AE signal/noise processing in corrosion damage evaluation of tank bottom[J].Journal of Acoustic Emission,2005,23:233-242.
【13】CALANRESE L,CAMPANELLA G.Use of cluster analysis of acoustic emission signals in evaluation damage severity in concrete structures[J].Journal of Acoustic Emission,2010,28:129-132.
【14】RAO M V M S,PRASANNA L K J.Analysis of b-value and improved b-value of acoustic emissions accompanying rock fracture[J].Corr Sci ( India),2005,89:1577-1582.
【15】SHIOTANI T,YUYUMA S,OHTSU M,et al.Application of AE improved b-value to quantitative evaluation of fracture process in concrete materials[J].Journal of Acoustic Emission,2001,18:118-133.
【16】曹楚南.腐蚀试验数据的统计分析[M].北京:化学工业出版社,1988.
【17】许述剑,翁永基,李相怡.图像分维对腐蚀坑分布特征的表征[J].中国腐蚀与防护学报,2007,27(2):109-113.
【18】翁永基,许述剑,边丽.腐蚀和腐蚀模型研究中的分形方法[J].中国腐蚀与防护学报,2006,26(5):315-319.
【19】边丽,翁永基,许述剑.基于分形动力学过程的腐蚀预测模型[J].化学通报,2006(3):207-210.
【20】宋吟蔚.基于分形理论的埋地钢质管道杂散电流腐蚀检测技术研究[D].北京:北京工业大学硕士学位论文,2008.
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