Abstract
Corrosion damage to metal is one of the main factors that reduce the safety of operation of main pipelines. It is known that about 70 % of pipeline failures occur due to metal corrosion. Electrochemical protection in combination with non-metallic coatings is currently the main method to prevent aggressive effects of corrosive media on main pipelines. The use of these methods of protecting pipelines has a number of difficulties that can be associated with the use of several protective coatings of different types and conditions on one oil pipeline; use of cathodic stations of different design and efficiency; Lack of a system to monitor electrochemical protection objects; difficulties arising during operation of anode grounding electrodes and comparison electrodes. Under these conditions, bringing the technical condition of the anti-corrosion protection system of the main oil pipelines to the level corresponding to the modern requirement of industrial safety is an important task that allows improving the safety and reliability of pipeline transport facilities. The article provides an analysis of the operation of cathodic protection units of the Kaltasy-Yazykovo main oil pipeline and the results of calculations on optimizing the modes of the cathode stations.
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