DEVELOPMENT OF A DURABLE ANODE GROUNDING MATERIAL

The main task in the transportation of oil and petroleum products is to ensure long-term trouble-free operation of underground main pipelines. Increased attention should be paid to protecting pipelines from corrosion, especially in the area of stray currents. The aggressive influence of the external environment and the overprotected state significantly accelerates the corrosion processes occurring on the metal surface of pipelines: local corrosion damage to the metal occurs (characterized by a high rate of corrosion), peeling of anti-corrosion coatings and much more, which leads to a decrease in the strength of pipelines, the risk of oil and petroleum product leaks, accidents, which can have a detrimental effect on the environment, lead to an increase in the cost of repair and restoration work. One of the main ways to protect main pipelines from corrosion damage caused by stray currents is the use of drainage protection installations and cathodic protection installations using anode earthing devices [3-5]. Existing types of anode earthing devices are not always effective, have a short service life, and are prone to degradation (deterioration of performance) under the influence of an aggressive environment and stray currents.In order to solve these problems, it is necessary to develop a new material for anode grounding. This anode earthing device will redistribute current loads from the effects of stray currents in the installation of reinforced drainage, while ensuring a longer service life of the material, increasing the efficiency of anode grounding in the zone of influence of stray currents. This scientific article discusses modern solutions that will increase environmental safety, reduce the cost of maintenance and repair of pipelines and corrosion protection equipment, and increase the reliability of trouble-free operation of main pipelines. The main objectives of the article are:— consideration of existing anode grounding materials;— evaluation of laboratory test results of anode earthing devices made of various materials;— proposals for the introduction of new materials for the manufacture of anode earthing devices.