PLANT FOR PIPELINE DECONTAMINATION AND CLEANING OF SEDIMENTS Russian patent published in 2014 - IPC B08B3/02 G21F9/34 

FIELD: process engineering.

SUBSTANCE: invention relates to radiochemical contamination/decontamination and can be used for decontamination of inner surface of pipelines conveying high-activity solutions and provided with protective coating and inaccessible for servicing and repair. Decontamination plant comprises detergent and decontamination agent solution chamber, compressed air feed and discharge chamber communicated with the latter and provided with air control valve composed by two fast-action valves fitted at compressed air feed and discharge pipelines, and control board. Valves bodies incorporate pressure device provided with decontaminating solution feed pipes and orifices communicating said pipes with pipeline to be decontaminated. Decontaminating solution chamber is connected to said decontaminating solution feed pipe of one of pressure device while receiver is connected with pipe of the other pressure device. Receiver volume is larger than that of decontaminating solution chamber. Decontaminating solution chamber and receiver can be arranged in safety plug seats, under shutoff valve.

EFFECT: smaller consumption of decontaminating solutions, higher efficiency of decontamination.

4 cl, 5 dwg