DEVICE FOR MEASUREMENT OF GAS LEAKS IN SHUT-OFF FITTINGS BY MEANS OF VENT PIPE Russian patent published in 2003 - IPC

FIELD: pipe line transport of gas. SUBSTANCE: volume of gas flowing through shut-off fittings via vent pipe is determined by measuring rotational speed of L-shaped tubes hermetically fitted in vent pipe in plane perpendicular to axis of pipe through whose nozzles gas escapes into atmosphere. Proposed device is provided with vertical vent pipe whose inlet is hermetically connected with outlet of shut-off fittings and outlet is provided with protective cap having holes for escape of gas into atmosphere; outlet part of vent pipe is provided with L-shaped tube system in plane perpendicular to axis of pipe; L-tube system is mounted hermetically; it consists of nozzle-like L- shaped tubes rigidly interconnected in Z- shaped pattern; said system is rotatable around axis of vent pipe; interior of nozzle-like tubes forms single gas- evacuating passage connected with interior of vent pipe. EFFECT: enhanced efficiency. 1 dwg