CONDUIT DE TRANSPORT DE GAZ AYANT UN ECOULEMENT A PRESSION VARIABLE AVEC ATTENUATION ACOUSTIQUE INTEGREE

摘要

A gas pipe with variable-pressure flow and acoustic attenuation over a wide frequency band (F) in the form of tuned acoustic attenuators around and along the pipe, comprising (a) an absorption silencer or broad-band resonator (5; 5') of the multi-orifice type (6) for the low end of the band (F) and (b) at least four quarter-wave resonators (1-4; 1'-4') dimensioned to increase attenuation around their tuned frequency, preferably at the high end of the band (F).