摘要
埋地油气管道的腐蚀一直是油气储运及集输工程的一个重要问题。分析了埋地油气输送管道腐蚀的各种形式及主要腐蚀机理。针对输油管道的腐蚀问题,从土壤微生物、理化性质以及交流电对管道的腐蚀影响等方面进行了分析。介绍了埋地油气混输管道腐蚀防护的方法:加缓蚀剂、外涂层、内涂层和衬里保护、阴极保护法、杂散电流排流保护等。提出要提高油气输送管道的使用寿命,就应在合理选择防腐护方法的同时,加强防腐管道的维护和保养,这些是管道防腐工作的的重中之重。
The corrosion of buried oil and gas pipeline has always been a problem for oil and gas storage and transportation and oil-gas gathering.In this paper,main corrosion forms of buried pipelines and the corrosion mechanism were analyzed.Then effects of soil microorganism,soil physical and chemical properties and alternating current on pipeline corrosion were also analyzed.Some methods of corrosion protection were introduced,such as adding inhibitor,external coating,internal coating and lining protection,cathodic protection,stray current protection and so on.To solve the corrosion problem,the methods of corrosion protection must be selected reasonably,and maintenance of the pipeline must be strengthened,which is the key work in pipeline anticorrosion.
出处
《当代化工》
CAS
2011年第1期53-55,59,共4页
Contemporary Chemical Industry
关键词
埋地管道
油气储运
油气集输
腐蚀防护
阴极保护
Buried pipeline
Oil and gas storage and transportation
Oil-gas gathering.
Corrosion protection
Cathodic protection
