摘要
舰船都会使用外加电流阴极保护的方法进行船体防腐保护,保护电位是进行外加电流阴极保护方法的核心参数,如何设定保护电位的数值将会决定舰船的防腐效果。文章首先建立舰艇外加电流阴极保护电位计算模型,然后从阳极与被保护体的距离,腐蚀介质电阻率变化对电流分布的影响,涂层对电位电流分布影响三个方面讨论影响外加电流阴极保护电位的因素。通过仿真,确定了以上因素如何影响外加电流阴极保护电位,为合理设计外加电流阴极保护电位参数提供了理论依据。
Ship will use the impressed current cathodic protection (ICCP) methods for hull corrosion protection. The protection potential value as the core parameter of the ICCP method will determine the anticorrosive effect of ship.Firstly, establish a ICCP potential calculation model of ship, and then analysis the factors impact of ICCP on protective potential in three aspects: distance between the anode and the protected hull; corrosion resistivity variation influence on current distribution; coating influence on the potential and current distribution. The simulation result shows that how these factors affect the ICCP potential and provide a theoretical basis for the rational design of ICCP parameters.
作者
柳懿
王向军
LIU Yi;WANG Xiang-Jun(College of Electrical and Information engineering, Naval University of Engineering. Wuhan 430033, China)
出处
《全面腐蚀控制》
2017年第1期38-41,62,共5页
Total Corrosion Control
关键词
外加电流阴极保护
保护电位
电阻率
电流密度分布
impressed current cathodic protection(ICCP)
protective potential
resistivity variation
current density distribution
