JOINT FOR CRYOGENIC PIPE LINES

摘要

FIELD: cryogenic engineering; connection of pipes of flying vehicle fuel systems; ground filling complexes. SUBSTANCE: joint includes tips of two tubes and insulating envelopes. Tubes are inserted one in other at overlapping forming clearance between both tips; inner clearance includes radial and circular parts; length of circular part exceeds considerably length of radial part. Seals are mounted in clearance. One seal is located between end parts of tube tips and other seal is mounted on their lateral sides. Seal is made in form of ring made from flexible material. Joint is provided with ball-type locking mechanism secured on outer and inner tips of tubes; at consists of inner and outer circular holders between which ball-retainers are mounted in grooves for coaxial turn and fixation of both tubes. EFFECT: enhanced reliability and tightness and ease of operation.