ELBOW BRANCH PIPE-BEND Russian patent published in 2004 - IPC

FIELD: construction. SUBSTANCE: invention can be used in laying pipelines. Proposed elbow branch pipe-bend contains branch pipes with flanges, housing made in form of reinforced shells of diaphragms, pressure rings, shaped elbow and fireproof hood. Flanged branch pipes are furnished with conical inserts. Axis of cone is displaced relative to center of arrangement of elastic reinforced shells forming toroidal shock- absorbing member filled with gas-and-liquid mixture under pressure. Thin fireproof hood is lined from inside with heat-insulating material. Housing accommodates shaped elbow with wing system containing horizontal and two vertical plates connected to each other. Horizontal plates are curved parallel to elbow axis. Mathematical dependences describing their arrangement are given in description of invention. EFFECT: improved operation reliability of system. 2 cl, 2 dwg