CLEANING SYSTEM FOR INTERNAL CLEANING OF LIQUID PIPE LINE AND ITS COMPONENTS Russian patent published in 1999 - IPC

FIELD: pipe line cleaning systems. SUBSTANCE: cleaning system includes set of balls 26 immersed in flow of liquid running through system, separating device 28 for separating balls from liquid after liquid supply pipe line 14. It also includes gathering device for gathering balls after separating device 28 in way of flow of liquid, reservoir 62 for keeping pressure liquid and compressor 64 for selective delivery of compressed air to reservoir 62. Compressed air is fed in such way that part of volume of pressure liquid flows through gathering device 60 for carrying part of balls 26 to supply them to point before pipe line 14 in way of flow of liquid. EFFECT: enhanced efficiency of cleaning internal surfaces of liquid pipe lines; simplified construction. 31 cl