DEVICE TO APPLY PROTECTIVE COATINGS ON MAIN LINE INNER SURFACE Russian patent published in 2009 - IPC F16L58/02 

FIELD: mechanics, pipelines.

SUBSTANCE: proposed device comprises appliance fitted inside the main line to clean its inner surface and appliance to apply protective coating thereon. Note that the proposed device is furnished with at least two tight metal disk partitions, while the said cleaning appliance represents a plasma-type cleaning device. Note also that the aforesaid appliance of coating the pipe inner surface represents a multi-component magnetron evaporator. Mind that both aforesaid appliances are fitted on one device revolving about the pipeline axis to direct ion beams in opposite directions and in trajectories overlapping each other. The device incorporates also an operating gas pump-out and feed systems, the gas being fed into the area formed in the pipeline between the said tight metal disk partitions.

EFFECT: higher quality of protective coatings.

1 dwg