阴极保护电位分布数学模型的研究及其应用

RESEARCH AND APPLICATION OF POTENTIAL DISTRIBUTION MODELLING IN CATHODIC PROTECTION

用稳流电场理论分析阴极保护体系各种电流，即：沿设备流动电流、从阳极流入介质电流和从介质流到保护设备上电流，研究其电位分布规律．结合埋地管道和储罐底板阴极保护条件，推导保护电位分布的数学模型，比较两者的异同性．并探讨数学模型在优化设计上的应用．

The currents of cathodic protection(CP) sysytem were analysed into several parts, namely: currents along the protected equipments; currents from anodes to ground; and currents from ground to protected equipments. According to the electric field theory of stable currents, potential distribution modelling caused by these currents was studied separately, and the mathematical formulas had been derived to fit the buried pipeline or ground storage tanks in CP. The difference of modelling between pipeline and tank bottom, as well as the application of potential distribution modelling in optimization of CP designs are discussed.