METHOD FOR CLEANING INNER SURFACE OF PROCESS EQUIPMENT AND PIPELINES (VERSIONS) Russian patent published in 2016 - IPC B08B9/27 F28G9/00 

FIELD: treatment plants.

SUBSTANCE: invention relates to cleaning mechanical impurities and corrosion protection of inner surfaces of process equipment and pipelines, particularly at low temperatures, and can be used at industrial enterprises at start-up operations, scheduled repairs, at reconstruction and new construction. Method involves hydrodynamic removing deposits mode by means of jet cleaning device, flushing fluid supply to cleaning device under high pressure, generating jet exposure by forming jet flows of said fluid on surface to be cleaned, carry-over of flushing fluid flow with remote deposits at the forward direction of movement of the cleaning device on the surface to be cleaned and at the reverse direction of movement by means of reciprocal action mechanism. At the stage of deposits purification cleaning of surface from corrosion products tightly coupled with metal and scales with provision of corrosion protection of the surface to be cleaned is performed. Solution at a given components ratio is used as flushing fluid.

EFFECT: technical result is high efficiency of cleaning process equipment and pipelines of various configuration with simultaneous antirust treatment at negative temperatures.

14 cl, 3 dwg, 5 ex