长输管道阴极保护防腐技术分析

Analysis on Cathodic Protection and Anticorrosion Technology of Long Distance Pipeline

市政管网的建设离不开各类管道,随着现代城市化规模的不断扩大和市政管网的功能性不断提升,输水管道的总长度和规格都发生了很大的变化。在长时间使用输水管道过程中,由于所处地区的土壤条件以及地下水位等因素的影响,可能会出现严重的管道渗漏情况,因此为了保证长距离输送管道的正常运行,就要减少出现腐蚀破损的情况,在长距离输水管道的防腐保护中,阴极保护是最常使用也是效果最好的一类,它利用了电化学反应将与化学腐蚀有关的腐蚀环节和因素进行了隔绝,避免了输水管道由于腐蚀效果而造成的损坏。

The construction of municipal pipeline network is inseparable from all kinds of pipelines.With the continuous expansion of moderm urbanization and the continuous improvement of municipal pipeline network functionality,the total length and specifications of water pipelines have undergone great changes.During the long-term use of water pipelines,due to the influence of factors such as soil conditions and groundwater levels in the area,serious pipeline leakage may occur.Therefore,in order to ensure the normal operation of long-distance transmission pipelines,it is necessary to reduce corrosion In the case of damage,cathodic protection is the most commonly used and most effective type of corrosion protection for long-distance water pipelines.It uses electrochemical reactions to isolate the corrosion links and factors related to chemical corrosion to avoid The damage to the water pipeline due to corrosion effects.