储罐底板阴极保护技术现状及其发展

Overview and Development of Tank Bottom Cathodic Protection Technology

对于储罐底板内外侧的腐蚀,阴极保护是最为经济有效的防腐措施。根据测量的电位来判断储罐底板是否得到有效保护,把保护电位作为调整阴极保护系统运行的重要参数。遇到罐底板中心部位电位不容易检测的时候,为了保证储罐底板中心得到充分保护,需要利用数学方法,根据阴极保护电位数值计算理论,建立阴极保护的数学模型,求解得到整个储罐底板的电位分布。此举措对于提高整个储罐底板的阴极保护效果,延长站内储罐的使用寿命有非常重要的意义。

At present, cathodic protection is the most effective and economic anti - corrosion measure for the .internal and external sides of bottom plates. Whether the tank bottom plate has been effectively protected or not can be determined according to the measured electric potential parameters. Protection potential is an important parameter to adjust the operation of cathodic, protection system. When it is difficult to get the protective electric potential of the tank center bottom and it is important to protect the tank center bottom plate, it is necessary to establish mathematical model of cathodic protection to get the electric potential distribution of the whole bottom plate by using numerical simulation based upon numerical calculation theory, for cathodic protection electric potential. It is very significant for improving effectiveness of cathodic protection and extending the service life of tanks in the station.