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中国腐蚀与防护学报  2017, Vol. 37 Issue (4): 305-314    DOI: 10.11902/1005.4537.2016.080
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储罐底板阴极保护电位分布研究进展
寇杰1,2(), 张新策2, 崔淦2, 杨宝安3
1 中国石油大学 (华东) 山东省油气储运安全省级重点实验室 青岛市环海油气储运技术重点实验室 青岛 266580
2 中国石油大学 (华东) 储运与建筑工程学院 青岛 266580
3 中国石油化工股份有限公司 天然气榆济管道分公司 济南 250000
Research Progress on Cathodic Protection Potential Distribution of Tank Bottom Plate
Jie KOU1,2(), Xince ZHANG2, Gan CUI2, Baoan YANG3
1 Shandong Provincial Key Laboratory of Oil & Gas Storage and Transportation Safety, Qingdao Key Laboratory of Circle Sea Oil & Gas Storage and Transportation Technology, China Univeristy of Petroleum, Qingdao 266580, China
2 College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China
3 China Petroleum and Chemical Corporation, Yulin to Jinan Gas Pipeline Subsidiary, Jinan 250000, China
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摘要: 

总结了近几十年储罐底板阴极保护电流密度及电位分布的研究发展现状,阐述并探讨了储罐底板解析法和数值方法的研究现状和问题。提出数值方法取代解析法是未来研究的一种发展趋势,且数学模型和边界条件的进一步优化以及多种数值方法的联合使用将是数值模拟进一步发展的方向。
关键词 ： 储罐底板,  解析法,  数值方法,  边界条件,  联合使用,  阴极保护    
Abstract：

Cathodic protection is an important method to prevent the corrosion of tank bottom plate. In this article,the research status in recent decades about the current density- and potential-distribution of tank bottom plate under cathodic protection is summarized. The research status and the relevant issues related with the analytical method and numerical analysis method applied for the status of cathodic protection of tank bottom plates are described and discussed. The authors prospect that the analytical method will be gradually replaced by numerical method, while the mathematical model and boundary conditions need to be further studied and improved. In addition,the combined use of a variety of numerical methods will be a trend in the development of numerical simulation in the future.
Key words： tank bottom plate    analytical method    numerical method    boundary condition    combined use    cathodic protection
收稿日期: 2016-06-20     
ZTFLH:  TG174.41  
作者简介:

作者简介 寇杰,男,1969年生,博士,教授
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引用本文:

寇杰, 张新策, 崔淦, 杨宝安. 储罐底板阴极保护电位分布研究进展[J]. 中国腐蚀与防护学报, 2017, 37(4): 305-314.
Jie KOU, Xince ZHANG, Gan CUI, Baoan YANG. Research Progress on Cathodic Protection Potential Distribution of Tank Bottom Plate. Journal of Chinese Society for Corrosion and protection, 2017, 37(4): 305-314.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2016.080      或      https://www.jcscp.org/CN/Y2017/V37/I4/305

图1  罐底阴极保护电位的计算值和实测值对比[9]
图2  储罐底板电位分布[10]
图3  罐旁单侧深井阳极阴极保护系统简化图[12]
图4  用于计算罐底板外侧电位分布的网格和典型元素示意图[22]
图5  二维有限元分析几何模型[28]
图6  三维有限元分析几何模型[28]
Test point E (Measured)mV E(Numerical)mV Relative%
A -994 -984 -1.0
B -973 -980 0.7
C -956 -969 1.4
D -940 -947 0.7
E -912 -950 4.0
F -903 -945 4.4
G -893 -965 8.1
H -924 -975 5.5
表1  电位 (SCE) 分布结果的对比
图7  储罐底板网格划分示意图[1]
图8  钢制储罐牺牲阳极阴极保护系统二维模型示意图[37]
图9  边界元计算结果与实验结果对比图[37]
图10  实验系统示意图[42]
图11  钢板上测试点示意图[42]
图12  模拟数据与实测数据对比图[42]
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