Evaluation and Retrofit Optimization of Sacrificial Anode Cathodic Protection System on Submarine Pipeline
摘 要
借助数值模拟技术预测了某海管更换阳极前及采用不同牺牲阳极更换方案后的阴保电位分布及原有牺牲阳极的剩余寿命。结果表明:阳极更换前,海管的阴保电位达标(负于-800 mV),但牺牲阳极寿命不足10 a,这与水下机器人(ROV)的检测结果一致;采用方案2(9支块状牺牲阳极)更换阳极后的防护效果最佳,连续两次ROV检测结果表明海管得到有效保护。
Abstract
With the help of numerical simulation technology, the distributions of the cathodic potential and the remaining life of the original sacrificial anode were predicted before replacing the anode of a submarine pipeline and after using different sacrificial anode replacement schemes. The results showed that before the anode was replaced, the cathodic protection potential of the submarine pipeline reached the standard (negative -800 mV), but the sacrificial anode life was less than 10 a, which was consistent with the detection results of the underwater robot (ROV). Scheme 2 (9 massive sacrificial anodes) had the best protection effect after the anode was replaced. The results of two consecutive ROV tests indicated that the subsea pipe had been effectively protected.
中图分类号 TG174.41 DOI 10.11973/fsyfh-202005010
所属栏目 应用技术
基金项目
收稿日期 2020/1/5
修改稿日期
网络出版日期
作者单位点击查看
引用该论文: CHEN Bo,LI Quanhua,WANG Dan,DONG Liang. Evaluation and Retrofit Optimization of Sacrificial Anode Cathodic Protection System on Submarine Pipeline[J]. Corrosion & Protection, 2020, 41(5): 49
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】吴建华,陈光章. 海底管线的腐蚀保护——管道腐蚀与防护讲座之六[J]. 管道技术与设备,2000(6):35-38.
【2】孙吉星,王庆璋,金曦,等. 海底管道外防腐层破损阴极保护数值模拟[J]. 全面腐蚀控制,2016,30(11):7-9.
【3】董亮,杜艳霞,张建宇,等. 导管架牺牲阳极阴极保护数值模拟评价与优化改造[J]. 腐蚀与防护,2015,36(8):754-758.
【4】李民强,郑震生,董亮,等. 海洋平台导管架外加电流阴极保护设计数值模拟[J]. 表面技术,2016,45(7):109-114.
【5】BAYNHAM J M,FROOME T,ADEY R A. Jacket SACP design and optimization using simulation. Corrosion/2012[C]//Houston,TX:NACE,2012:1281.
【6】杨璐嘉,钟文军,曹亚洲,等. 基于数值模拟计算的铺管船阴极保护系统设计[J]. 腐蚀与防护,2015,36(11):1072-1076.
【7】ZAMANI N G. Boundary element simulation of the cathodic protection system in a prototype ship[J]. Applied Mathematics and Computation,1988,26(2):119-134.
【8】ADEY R A,PERATTA C,BAYNHAM J M. How interference can impact the life of CP systems. an FPSO case study. Corrosion/2016[C]//Houston,TX:NACE,2016:7454.
【9】LEE M J,SI G J. ICCP system design on the hull of an ice breaker by computational analysis. Corrosion/2014[C]//Houston,TX:NACE,2014:4004.
【10】季廷伟,王树立,陈磊,等. 海底管道腐蚀缺陷处阴极保护数值模拟[J]. 油气储运,2019,38(1):108-114.
【2】孙吉星,王庆璋,金曦,等. 海底管道外防腐层破损阴极保护数值模拟[J]. 全面腐蚀控制,2016,30(11):7-9.
【3】董亮,杜艳霞,张建宇,等. 导管架牺牲阳极阴极保护数值模拟评价与优化改造[J]. 腐蚀与防护,2015,36(8):754-758.
【4】李民强,郑震生,董亮,等. 海洋平台导管架外加电流阴极保护设计数值模拟[J]. 表面技术,2016,45(7):109-114.
【5】BAYNHAM J M,FROOME T,ADEY R A. Jacket SACP design and optimization using simulation. Corrosion/2012[C]//Houston,TX:NACE,2012:1281.
【6】杨璐嘉,钟文军,曹亚洲,等. 基于数值模拟计算的铺管船阴极保护系统设计[J]. 腐蚀与防护,2015,36(11):1072-1076.
【7】ZAMANI N G. Boundary element simulation of the cathodic protection system in a prototype ship[J]. Applied Mathematics and Computation,1988,26(2):119-134.
【8】ADEY R A,PERATTA C,BAYNHAM J M. How interference can impact the life of CP systems. an FPSO case study. Corrosion/2016[C]//Houston,TX:NACE,2016:7454.
【9】LEE M J,SI G J. ICCP system design on the hull of an ice breaker by computational analysis. Corrosion/2014[C]//Houston,TX:NACE,2014:4004.
【10】季廷伟,王树立,陈磊,等. 海底管道腐蚀缺陷处阴极保护数值模拟[J]. 油气储运,2019,38(1):108-114.
相关信息