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在实验室进行埋地管道阴极保护模拟实验时,鉴于多种影响因素的考虑,需要同时进行多组实验,而阴极保护系统中的传统电源价格昂贵,数量有限,特别是对现场所埋试片进行阴极保护时,传统电源的使用极不方便。基于直流电源的埋地管道阴极保护替代方案,通过实验验证了以干电池作为强制电流阴极保护电源的阴极保护系统的有效性,利用失重法对替代方案中涉及的实验组与空白组的试件进行对比分析,结果表明:使用两节1.5 V干电池作为强制电流阴极保护电源的阴极保护系统,对于试件的保护至少在30天内是有效的。
In the laboratory for buried pipeline cathodic protection simulation experiments, in view of a variety of factors to consider, the need for multiple experiments at the same time, and the cathodic protection system in the traditional power supply is expensive and limited in number, especially on-site buried film Cathodic protection, the use of traditional power very inconvenient. Based on the alternative of cathodic protection for buried pipelines based on DC power supply, the effectiveness of cathodic protection system using dry-cell as cathodic protection power source was verified experimentally. The weight loss method was used to test the experimental group and the blank group The comparative analysis shows that the use of two 1.5 V dry cells as the cathodic protection system for forced-current cathodic protection power is effective for the protection of the specimen for at least 30 days.