Sound-proofing

These re­duce sound pen­e­tra­tion at sound-emit­ting com­po­nents such as fans, fil­ters, pip­ing, drive units, etc. In­su­la­tion is achieved through en­cap­su­la­tion in the widest sense of the word: For ex­am­ple, us­ing in­su­lat­ing cab­ins, hous­ings, in­su­lat­ing shells, or the in­su­la­tion of pipelines and the fil­ter hous­ing. Ap­pli­ca­tion They are used when open­ings to noise-emit­ting com­po­nents can­not be avoided. This is the case in gas streams in pipelines, for ex­am­ple. Pipe si­lencers and baf­fle si­lencers are used. Usu­ally they are based on in­stalling ab­sorber ma­te­r­ial in a si­lencer cas­ing – the ab­sorber ma­te­r­ial has a porous struc­ture that ab­sorbs the sound en­ergy. Res­o­nant ab­sorbers are a spe­cial form of si­lencer that are the pre­ferred choice for low-fre­quency noise. Struc­ture-borne sound at­ten­u­a­tion mea­sures These mea­sures in­clude vi­bra­tion dampers, pipeline com­pen­sators and panel res­onators in fans.