某厂区接地网阴极保护设计与评价  

Design and Evaluation of Cathodic Protection for Grounding Grids in a Factory

作　　者：王在峰[1] 陈胜利[1] 符耀庆[1] 宋积文[1] 白启鹏[1] 庄武华 李言涛[2] 

机构地区：[1]中海油信息科技有限公司北京分公司,北京100027 [2]中国科学院海洋研究所,山东青岛266071

出　　处：《全面腐蚀控制》2016年第5期42-45,共4页Total Corrosion Control

摘　　要：为对某厂区镀锌钢类接地网进行阴极保护,以延长其使用寿命。对高电阻率土壤及低电阻率分别选取镁阳极和锌阳极进行阴极保护的设计和计算。计算中分别考虑了电流总需求所需要的阳极总量和阳极寿命所需的阳极总量。为对设计效果进行评价,设立了监测装置,并对测试桩的电位进行了抽测,结果表明,所抽测测试桩保护电位均比-970mV更负,达到了设计要求。In order to prolong the service life of grounding grids of galvanized steel in a factory, magnesium anodes were selected for cathodic protection in high resistivity soil and zinc anodes were selected for cathodic protection in low resistivity. The design and calculation were carded out for two kinds of anodes. In the calculation, the total amount of anodes based on life of anodes and the total amount of anodes needed for the demand of total current were considered. In order to evaluate the effect of design, the monitoring devices were set up and the potentials of the test piles were obtained. The results showed that the protective potential of the test piles were more negative than the -970mV and the design can reach requirements of standards.

关 键 词：接地网 阴极保护 设计计算 牺牲阳极 测试桩 

分 类 号：TG174.41[金属学及工艺—金属表面处理]