The device for calibration and calibration of the flowmeter integrated in the main gas pipeline

摘要

A useful model refers to the transportation of gas through main gas pipelines equipped with compressor stations, namely devices for checking and calibrating measuring devices controlling the flow of gas transported along main gas pipelines. The device comprises a bypass conduit 3 with a stop valve intended for bypassing the compressor station, between the straight sections (24, 25) of which a sleeve (4) equipped with flanges (5, 6) and a compensator (7) of axial displacements are inserted. The sleeve (4) is designed to be interchanged with a reference flowmeter (8). The shut-off valves of the pipeline (3) may contain two shut-off valves (15, 16) integrated in the pipeline (3) on either side of the sleeve (4), or one stopcock (16) integrated in or in front of the hub (4) in direction 17) of the gas stream. The technical result is a simplification of the design of the calibration and calibration device of the flow meter integrated in the main gas pipeline. 3 z.p. f-ly, 1 il.