储油罐底板腐蚀的概率统计和评估的研究  

Evaluation on Corrosion Probability Statistics of Oil Tank Bottom Plate

作　　者：陈思维[1] 

机构地区：[1]解放军后勤工程学院,重庆400032

出　　处：《石油库与加油站》2012年第5期6-7,2,共2页Oil Depot And Gas Station

基　　金：解放军后勤工程学院青年基金资助

摘　　要：用概率统计方法对腐蚀环境基本相同的3组不同服役年限的储罐底板腐蚀分布及穿孔失效与时间的关系进行了研究,研究表明,腐蚀穿孔失效率与时间呈指数关系,随着服役年限的增加,储罐底板腐蚀穿孔率大为提高;腐蚀蚀坑最大深度分布服从极值分布规律,根据分布规律可预测储罐底板的最大腐蚀深度。为储罐综合评估及储罐的维护和管理提供了依据。Since localized corrosion phenomenon is essentially a probabilistic characteristic,probabilistic method is an important method to study corrosion distributions of oil tank bottom plates with various service life and laws of perforation failure time.Study results showed that corrosion perforation rate of tank bottom plate increased greatly with the increase of service life,showing the exponential relationship of corrosion perforation rate with service life;the distribution of maximum depth of corrosion pits submit to the law of extreme value distribution,by which the maximum corrosion depth of bottom plate could be predicted.The study results provided scientific basis for comprehensive evaluation,maintenance and management of storage tank.

关 键 词：储罐底板 腐蚀 概率统计方法 研究 

分 类 号：TE988[石油与天然气工程—石油机械设备]