管道内壁阴极保护时的阳极配置

ANODE CONFIGURATION IN CATHODIC PROTECTION SYSTEM FOR INTERNAL SURFACE OF PIPE

前言管道内壁的阴极保护技术已广泛应用于工程实际中。实施该技术时的一个重要问题是确定阳极配置。通常,根据经验进行估算,无法满足实践需要。要正确设计阳极配置,必须了解内壁电位的分布规律,佐藤史郎等和徐乃欣等已做过这方面的工作。通常在设计阳极保护系统时,首先确定最小保护电位极化值和最大极化电位值。

It is supposed that discrete point anodes are used for internal cathodic protection of pipe and placed equidistantly. Based on the expression of hyperbolic cosine function for potential distribution inside the pipe, the dependence of anode internals on pipe diameter ,medium resistivity ,surface polarization resistance and polarization potential is discussed.