badri2221
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I am looking forward to design vent silencer , which shall be temporarly connected to the 48'' pipeline for depressurising activites during gas pipeline pre comminissioning ativites.
Dry air shall be injected into pipeline which shall proppel the pigs and move the water infort of the pigs for an overall pipeline length of 1220 kms these water shall be disposed off into sea from the other end ,
its is clcullated that there will b pressure of 20 barg dry air in the pipeline which has to be depressurised over 5 days through the vent silencer .
Parameters :
48" Pipeline,1220 km
Pipeline pressure to be depressurised from 20 barg to 0.5 barg
Scheduled time for depressurisation is 5 days
Sound Attenuation 85 Dba at 40m as a basis for the model ( this being the critical parameter)
Temporary pipe work which connect the main pipeline to vent silencer is SCH 40 pipe with Ansi #300 RF flanges.
Dry air shall be injected into pipeline which shall proppel the pigs and move the water infort of the pigs for an overall pipeline length of 1220 kms these water shall be disposed off into sea from the other end ,
its is clcullated that there will b pressure of 20 barg dry air in the pipeline which has to be depressurised over 5 days through the vent silencer .
Parameters :
48" Pipeline,1220 km
Pipeline pressure to be depressurised from 20 barg to 0.5 barg
Scheduled time for depressurisation is 5 days
Sound Attenuation 85 Dba at 40m as a basis for the model ( this being the critical parameter)
Temporary pipe work which connect the main pipeline to vent silencer is SCH 40 pipe with Ansi #300 RF flanges.