METHOD FOR CLEANING OF PIPE INTERNAL SURFACE AND DEVICE FOR ITS EMBODIMENT

摘要

FIELD: interrelated group of inventions applicable in cleaning of water supply and draining systems from solid sediments in industry and public services. SUBSTANCE: method for cleaning of pipe internal surface includes generation of shock waves in liquid by supply of compressed by two waves shifted in time of their action. Shift of time Δt of action of the second wave after the first one is determined by the equation Δt = 0.002 + αD, where a = 0.002 + 0.006 is experimental coefficient, and D is the treated pipeline diameter. The device for embodiment of the offered method has body with lateral partition; located on one side of partition are two receivers formed by longitudinal partition in body and having each discharge hole and charging channel with different flow capacities. Located on the other side of partition is cylinder with nozzles and differential piston and furnished with pneumatic chamber and air admission pipe and having valve surface engageable with edge of wall of sluice chamber made in lateral partition which has valve chambers with spring-loaded shutoff valves. Chamber hollows are communicated with receivers. EFFECT: increased rate of cleaning with use of both inventions.