液化石油气储罐表面裂纹检测与失效分析  

Measurement of surface cracks on LPG storage tank and its Failure Analysis

作　　者：周晓光 孟书君 周凯 Zhou Xiaoguang;Mmeng Shujun;Zhou Kai(Jining Special Equipment Inspection Institute,Shandong Jining,272000)

机构地区：[1]济宁市特种设备检验研究院,山东济宁272000

出　　处：《石化技术》2022年第5期28-30,共3页Petrochemical Industry Technology

摘　　要：某燃气公司2台在役液化石油气储罐在第二次定期检验中,发现内表面存在大量裂纹。通过对储罐应力腐蚀机理、使用材质、介质环境、应力水平等方面的探讨,对2台储罐应力腐蚀开裂的成因进行综合分析,解释了应力腐蚀裂纹萌生并由内向外扩展的原因,并针对开裂提出了一些预防措施。Lots of internal surface cracks were detected during the second periodic inspection of two in-service LPG storage tanks from a gas company.The root cause of the stress corrosion cracking of the two LPG storage tanks were investigated thoroughly by analyzing the mechanism of the stress corrosion cracking,materials,environment,and stress level.The reasons of the propagation of the stress corrosion initiated cracks from inside to outside were explained in detail,and some prevention measures were put forward.

关 键 词：液化石油气 储罐硫化氢 应力腐蚀 开裂定期检验 

分 类 号：TE972[石油与天然气工程—石油机械设备]