METHOD AND ASSEMBLY TO REDUCE NOISE AND/OR TO CONTROL FLOW ASSOCIATED WITH A FLOW SYSTEM OF GASEOUS MEDIUM, SUCH AS FOR EXAMPLE AIR DISTRIBUTION AND/OR EXHAUST SYSTEM OF A VENTILATION SYSTEM, BOTH USE OF A MODULE SILENCER

摘要

The invention relates to the field of air ventilation and it concerns method and assembly to reduce noise and/or to control flow associated with a flow system of gaseous medium, such as for example air distribution and/or exhaust system of a ventilation system, and therein especially in distribution ducts from the skeleton ducts. The invention concerns also the use of a module silencer. According to the invention the silencer (15) is adapted into a casing (11) joined with a ducting (8) to form inside the casing (11) a flow obstacle for a rectilinear flow, whereby the flow is deviated and is directed inside the casing (11) past the silencer (15). Control of the flow is carried out by altering inside the casing (11) the size of the free transverse flow area. According to an especially preferred embodiment as the flow controller is used a module silencer so that the flow resistance is adjusted altering the location of the silencer in the casing.