Abstract A noise suppressing device for use in flow lines in which a zone of reduced pressure is produced downstream of a restriction in the flowway, such as may be caused by the use of a flow regulating device such as a valve or orifice device in the line, and comprising means forming a passageway for the flow of fluid into said zone from a location of higher pressure. The location from which fluid flows into the reduced pressure zone may be either upstream or downstream from the zone in the flow line or from a source outside of the flow line, and means may be provided for regulating such flow. The method of the invention comprises the decreasing of noise in a flow line caused by the formation of a zone of reduced pressure therein through which fluid under pressure flows through the line, by introducing fluid into said zone at a higher pressure than the pressure in the zone.
A NOISE SUPPRESSOR DEVICE ADAPTED TO BE USED DOWNSTREAM FROM A RESTRICTION IN A FLOW LINE WHERE THE RESTRICTION CREATES NOISE BY FORMING A LOWER PRESSURE ZONE DOWNSTREAM OF THE RESTRICTION, COMPRISING: A FLANGED PIPE ADAPTED TO BE CONNECTED DOWNSTREAM OF A NOISE CREATING RESTRICTION, SAID FLANGE EXTENDING INWARDLY TO DEFINE A DOWNSTREAM FACING SHOULDER; A BY-PASS LINE ADAPTED TO BE CONNECTED TO SUCH FLOW LINE AT A POINT OF HIGHER PRESSURE; AND, PASSAGE MEANS IN SAID FLANGED PIPE EXTENDING FROM THE EXTERIOR TO THE INTERIOR AT A POINT NEAR ONE END THEREOF AND PASSING THROUGH THE FLANGE ON SAID FLANGED PIPE AND OPENING DOWNSTREAM, SAID PASSAGE MEANS BEING ADAPTED TO BE CONNECTED WITH SAID BYPASS LINE.
Claim 2
Dependent Claim
117 words
A NOISE SUPPRESSOR DEVICE ADAPTED TO BE USED DOWNSTREAM FROM A RESTRICTION IN A FLOW LINE WHERE THE RESTRICTION CREATES NOISE BY FORMING A LOWER PRESSURE ZONE DOWNSTREAM OF THE RESTRICTION, COMPRISING: A FLANGED PIPE ADAPTED TO BE CONNECTED DOWNSTREAM OF A NOISE CREATING RESTRICTION, SAID FLANGE EXTENDING INWARDLY TO DEFINE A DOWNSTREAM FACING SHOULDER; A BY-PASS LINE ADAPTED TO BE CONNECTED TO SUCH FLOW LINE AT A POINT OF HIGHER PRESSURE; AND, PASSAGE MEANS IN SAID FLANGED PIPE EXTENDING FROM THE EXTERIOR TO THE INTERIOR AT A POINT NEAR ONE END THEREOF AND PASSING THROUGH THE FLANGE ON SAID FLANGED PIPE AND OPENING DOWNSTREAM, SAID PASSAGE MEANS BEING ADAPTED TO BE CONNECTED WITH SAID BYPASS LINE.
Claim 3
Dependent Claim
12 words
The structure of claim 1 including a valve in said by-pass line.