METHOD AND DEVICE FOR CLEANING INNER SURFACE OF CLOSED COMPLEX STRUCTURES Russian patent published in 2011 - IPC B08B9/27 

FIELD: process engineering.

SUBSTANCE: invention relates to cleaning inner surface of, for example, complex-shape pipelines, long tubes etc, and may be used in various industries. Proposed device is made up of at least one cleaning tube pre-turned inside out with at least one adsorbent applied thereon, for example, gel and/or adhesive film to be drawn through cleaned structure. In tube drawing through cleaned structure, inside pressure is increased to facilitate interaction between adsorbent and impurities on structure inner surfaces. Impurities are removed in reverse order due to that fact that force of adhesion between reacted adsorbent with cleaning tube exceeds that with cleaned structure surface.

EFFECT: cleaning tube strength allows tearing off of impurities from cleaned pipe surface.

10 cl, 3 dwg