Research on Optimization of Cathodic Protection Effect of Buried Pipeline

Cathodic protection is an important means to inhibit the electrochemical corrosion of pipelines, and the distribution of its potential directly affects the effectiveness of pipeline protection. By establishing a mathematical model of pipeline cathodic protection and using numerical simulation methods to study the distribution rule of pipeline cathodic protection potential, the main factors affecting the distribution of pipeline cathodic protection potential are determined by the embedding position and output current value of auxiliary anode. Then, the optimal buried position of the anode and the optimal output current value of the anode are used as optimization objectives to establish an objective function, and the optimal anode position and optimal anode output current value are searched out by the simulated annealing algorithm. Finally, the feasibility of the optimization scheme is verified based on the actual protection potential of the pipeline, and the results prove that the method has certain reference value for the design of cathodic protection.