大型钢制球罐的损伤成因及修复  

Causes of damage and its repairing in the large steel storage tank

作　　者：毕凤琴[1] 李强 张旭昀[1] 孙绪新[3] 

机构地区：[1]大庆石油学院石油机械系,黑龙江安达151400 [2]黑龙江省化学工业学校,黑龙江齐齐哈尔161005 [3]胜利石油管理局物探公司仪修厂,山东东营257100

出　　处：《大庆石油学院学报》2002年第1期72-74,共3页Journal of Daqing Petroleum Institute

摘　　要：析了大型钢制球罐裂纹的性质、形成和扩展的有关因素 ,讨论了球罐应力腐蚀的损伤机理 ,应力腐蚀开裂是与H2 S的质量分数和焊接应力等因素有关 .根据球罐损伤修复试验 ,提出了控制球罐损伤的措施 :焊后回火 ,消除应力 ,提高韧性 ;控制H2 S的质量分数小于 10× 10 - 6 ;定期开罐检查 。This paper has analysed the features, formation and patulous factors of the cracking in the large steel storage tanks, discussed the mechanism of stress corrosion cracks, which is considered being related to H 2S and welding stress. On the basis of the repairing experimentation, this paper has put forward the measures for damage control in large steel storage tanks: temper after welding, relieve stresses, increase toughness; control the weightiness of H 2S less than 10×10 -6 ; reguar check and repair of the tanks.

关 键 词：大型钢制球罐 裂纹 应力腐蚀 修复 损伤成因 压力容器 

分 类 号：TQ051.3[化学工程] TH49[机械工程—机械制造及自动化]