METHOD OF PREPARING MAIN LINE FOR REPAIR AND DEVICE TO THIS END

摘要

FIELD: machine building. ^ SUBSTANCE: device for cleaning main line from bottom silt is used. It is composed of flexible web with dead matter provided with hydraulic jets to clean pipeline length. Faulty pipe length is shut off on both ends. Fluid is forced from fault pipe length into mobile intake rigid container. Pontoons arranged in cassettes and in tiers above pipe length to be lifted to lift damaged pipeline length. Device consists of pontoons, container with pump to receive fluid, shutoff valve and slit remover. Said container represents mobile intake rigid container. ^ EFFECT: higher efficiency and safety. ^ 4 cl, 9 dwg