Study On The Service Behavior Of The Magnesium Sacrificial Anodes Of The Pipeline In Beijing Gas For More Than 10 Years

Sacrificial anode cathodic protection technology has been widely used in the field of buried pipeline corrosion protection. The pipeline of the Beijing gas since 1987 began to gradually increase the additional sacrificial anode cathodic protection technology, the current service time to reach 10 years and more than years of service, the pipeline length has exceeded 500 km. By selecting the high pressure pipeline in the near 300 km, using the method of field test, the validity of the cathodic protection system is investigated, and the relevant data are formed, and the influencing factors are proposed.To provide data support for further research on the way to extend the life of the sacrificial anode cathodic protection.