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钢质管道的腐蚀涉及到很多领域,特别是输送石油、天然气、煤气等易燃易爆流体的管道,尽管在此类工业管道设计初期就考虑了腐蚀的因素,增加安全余量。但管道的腐蚀对日常的生产运行仍然存在较大威胁。据统计,地下管线平均腐蚀速度为1.5mm/a,较为的严重的情况是投产1～2年管道就腐蚀穿孔,导致输送介质的泄露,除造成环境的污染外,还会引起爆炸和火灾,甚至造成人员的伤亡。钢质管道的腐蚀危害到不仅是企业的经济利益,也是一个严重的社会问题,因此必需对管道的腐蚀加以控制。文章简单介绍了管道腐蚀控制常用的方法。
Corrosion of steel pipelines involves many areas, particularly pipelines that transport flammable and explosive fluids such as oil, natural gas and gas, although corrosion considerations have been taken into account in the early stages of such industrial pipe design to increase safety margins. However, pipeline corrosion is still a major threat to daily operation. According to statistics, the average corrosion rate of underground pipeline is 1.5mm / a, more serious situation is put into operation 1 to 2 years pipeline corrosion perforation, leading to the leakage of transport medium, in addition to causing environmental pollution, but also cause an explosion and fire, Even caused casualties. Corrosion of steel pipes endangers not only the economic interests of the enterprises, but also a serious social problem, so it is necessary to control the corrosion of the pipes. The article briefly introduces the commonly used methods of pipeline corrosion control.