Problems and solutions between valve chamber instrument grounding and cathodic protection

With the progress of society and the development of technology, those remote resources, such as oil and natural gas, have been continuously developed. As the pipeline passes through a variety of geological and soil environment, it becomes an urgent problem to prevent pipeline corrosion and effectively prolong its service life.



At present, the main way of corrosion control is the combination of anti-corrosion coating and cathodic protection, and the premise of realizing cathodic protection is the effective insulation between pipeline and surrounding soil, so as to maximize the role of cathodic protection.



However, a block valve is installed every 10-30 km along the pipeline, and the power head of the block valve is mostly driven by electricity. In order to prevent the shell from being charged with electricity, timely lead the fault voltage, lightning voltage and static voltage to the earth, avoid damage to the instrument or interference to its work, and ensure the safety of operators. According to the power specification, the valve chamber is equipped with grounding grid, and the electric actuator is connected with the grounding grid.



Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.