METHOD FOR APPLYING METAL COAT TO INNER SURFACES OF RESERVOIR OR PIPELINE (VERSIONS) Russian patent published in 1998 - IPC

FIELD: coating of inner surfaces of vessels or pipelines. SUBSTANCE: method involves filling working cavity of reservoir or pipeline with water; adding acid into water; heating obtained solution and providing circulation of solution through filter till oxide layer is completely removed from inner surface of reservoir or pipeline; supplying alkali; discharging at least 1/5 of obtained neutralized solution and replacing it with concentrated metal-containing solution; mixing solution and maintaining temperature, acidity and metal concentration at permanent level until predetermined thickness of metal coat is reached; cooling and discharging solution. EFFECT: increased efficiency and improved quality of inner surface of reservoir or pipeline. 5 cl, 1 dwg