The sacrificial anode protection system of urban gas steel pipeline is often damaged due to urban development and construction、man-made damage or natural corrosion,which will lead to the failure of sacrificial anode protection and bring potential safety hazards.This paper makes a statistical analysis of the actual situation,summarizes the reasons that may cause the failure of the cathodic protection system,and expounds the solutions for mitigating corrosion and sacrificial anode failure from the aspects of the improvement of the test pile structure,the adjustment of the anode layout principle and the adjustment of the test pile layout principle.It is hoped that it can be used as a reference for corrosion protection of buried gas pipelines,so that the cathodic protection system can fully play its role.
gas steel pipelinesacrificial anodecathodic protectionexpirationsolution measures
NETL
NSTL
万方数据
