消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)（muffler）是(shi)允許氣流(liu)通(tong)過卻又能(neng)阻止、減小聲(sheng)(sheng)音傳播的(de)(de)(de)一種(zhong)(zhong)器(qi)(qi)(qi)件，是(shi)消(xiao)(xiao)(xiao)(xiao)(xiao)除(chu)空氣動力性噪(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)重要措施。消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)能(neng)夠阻擋(dang)聲(sheng)(sheng)波的(de)(de)(de)傳播，允許氣流(liu)通(tong)過，是(shi)控(kong)制噪(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)有效工具。消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)種(zhong)(zhong)類很多(duo)，根據消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)機理可以把分(fen)為(wei)六種(zhong)(zhong)主要類型：阻性消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)、抗(kang)性消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)、阻抗(kang)復(fu)合式消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)、微穿孔板消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)、小孔消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)、有源消(xiao)(xiao)(xiao)(xiao)(xiao)聲(sheng)(sheng)器(qi)(qi)(qi)。

1、消(xiao)聲(sheng)(sheng)器主要由(you)消(xiao)聲(sheng)(sheng)筒、消(xiao)聲(sheng)(sheng)片、上下封(feng)板（或封(feng)頭(tou)）、防雨帽、節流(liu)管、節流(liu)板、連接管（或法蘭）、支座、起吊環、銘牌等零部件組成。

2、具有(you)安裝方便(bian)、消聲效(xiao)果好、壽命長等特點。

3、消(xiao)聲器可獨立支承，在運(yun)行和停運(yun)時可自(zi)由(you)膨脹，使(shi)排(pai)汽管(guan)道(dao)不因消(xiao)聲器的安裝而受到(dao)額(e)外載荷，保(bao)證(zheng)排(pai)汽管(guan)道(dao)工作的安全可靠(kao)性。

4、可根據(ju)設計或用(yong)戶要求，采用(yong)特殊的活動連(lian)接裝置(zhi)。

5、消聲器材(cai)質采用優(you)質碳鋼或(huo)優(you)質不銹鋼等(deng)材(cai)料(liao)制(zhi)造，具有足夠的(de)耐(nai)(nai)熱(re)強(qiang)度(du)和(he)耐(nai)(nai)腐蝕性能，使設備