Arrangements for avoiding damage place the main oil pipelines

摘要

A device for sealing damaged area on the main pipeline prior to repair, which comprises two heat exchangers mounted on the pipeline on either side of the injury site and intended for feeding therein a coolant, preferably liquid nitrogen, with the possibility of freezing the pipeline in the pipeline in the form of technological "slugging" at the boundaries of the damaged section of the pipeline during the repair period, the frame body on the racks in the upper part of which there are fastening lugs ustro CTBA before installation in the pipeline, the bottom frame body are fixed cylinders to rods which are attached crimp coupling half with clamps for gripping the damaged portion of the pipeline, wherein the crimp coupling half fixed to the shaft, which is arranged on the racks at a distance L from the Earth and at its ends abuts against support sleeve, crimp sealed coupling halves are provided with seals and sealing members for sealing the coupling halves crimp the pipeline. 1 yl.