保温原油储罐外壁腐蚀成因及防腐蚀措施
Corrosion Causes and Protection Measures of Heat Preservation Crude Oil Storage Tank Outer Walls
摘 要
通过对舟山某油库若干储罐的现场检修，对罐壁腐蚀现状、原因作了全面分析。并结合电化学腐蚀理论，对保温罐罐壁的腐蚀机理作了深入剖析。结果表明，舟山的海洋大气环境对保温罐罐外壁腐蚀作用明显，一般保温罐外壁6~8圈壁板腐蚀最为严重。罐壁总体呈现迎风区域腐蚀较为严重，背风区腐蚀程度轻微的特点。保温支持圈、保护板和保温材料的布置和选用对罐外壁的腐蚀有重要影响。
罐壁
点蚀
腐蚀机理
防腐蚀措施
heat preservation tank
tank wall
pitting corrosion
corrosion mechanism
anti-corrosion measure
Abstract
In order to study the corrosion process of heat preservation crude oil storage tank outer walls, through the field maintenance of several storage tanks in Zhoushan oil depot, combining the electrochemical corrosion mechanism the status and reasons were corrosion comprehensively analyzed. The results showed that the marine-atmosphere environment in Zhoushan had an obvious effect on tank outer wall corrosion, the most serious corrosion occured on 6-8 circles of the outer walls. The corrosion was more serious on the windward side and slight on the leeward in general. The arrangement and selection of insulation support rings, protection boards and thermal insulation materials had an important effect on tank outer wall corrosion.
中图分类号 TG172 TE988
所属栏目 应用技术
基金项目 国家自然科学基金(50804053)
收稿日期 2013/12/27
修改稿日期
网络出版日期
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备注李自力(1963-),教授,博导生导师,从事油气储存安全技术的教学和研究工作,
引用该论文: WANG Jun,LI Zi-li,BI Hai-sheng,CHEN Jian,SHAO Shuai,JIANG Wei-an. Corrosion Causes and Protection Measures of Heat Preservation Crude Oil Storage Tank Outer Walls[J]. Corrosion & Protection, 2014, 35(9): 935
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参考文献
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【2】API Std 653-2009Tank inspection, repair, alteration, and reconstruction: 4th ed[S].
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【2】API Std 653-2009Tank inspection, repair, alteration, and reconstruction: 4th ed[S].
【3】陈丽娜. 浅析储罐及其罐壁设计方法[J]. 化学工程与装备,2009(10):59-60.
【4】BANUTA M,TARQUINI I. Corrosion of residential aboveground heating oil tanks:An overview[J]. Journal of Failure Analysis and Prevention,2010,10(1):69-76.
【5】徐国葆. 我国沿海大气中盐雾含量与分布[J]. 环境技术,1994,6:1-7.
【6】章寿民. 重视红丹漆的代用 防止铅污染[J]. 上海化工,1995,20(4):28-31.
【7】GB/T 8923.2-2008涂装前钢材表面锈蚀等级和除锈等级[S].
【8】刘王卫,孙伟栋,孙庆辉. 原油储罐壁板腐蚀原因分析及对策[J]. 化学工程与装备,2013(4):76-78.
【9】张显亮,高洪波,石永军,等. 保温储罐腐蚀分析及处理方法[J]. 油气储运,2003(1):53-55.
【10】辛艳萍. 钢制油罐腐蚀机理及防护措施的改进[J]. 中国石油大学胜利学院学报,2001,25(1):21-23.
【11】旷峰华,张洪波,李自金,等. 无机保温材料的现状及发展趋势[J]. 中国陶瓷工业，2012,19(6):36-39.
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