空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)噪(zao)(zao)聲(sheng)(sheng)包括(kuo)空(kong)(kong)氣(qi)(qi)(qi)動力性噪(zao)(zao)聲(sheng)(sheng)、機(ji)械(xie)噪(zao)(zao)聲(sheng)(sheng)、電(dian)(dian)磁噪(zao)(zao)聲(sheng)(sheng)。輻射噪(zao)(zao)聲(sheng)(sheng)的(de)部位分為：空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)機(ji)體噪(zao)(zao)聲(sheng)(sheng)源(yuan)；電(dian)(dian)動機(ji)噪(zao)(zao)聲(sheng)(sheng)源(yuan)；進(jin)氣(qi)(qi)(qi)管道噪(zao)(zao)聲(sheng)(sheng)源(yuan)；進(jin)氣(qi)(qi)(qi)口(kou)噪(zao)(zao)聲(sheng)(sheng)源(yuan)；排(pai)氣(qi)(qi)(qi)管道噪(zao)(zao)聲(sheng)(sheng)源(yuan)；排(pai)氣(qi)(qi)(qi)放空(kong)(kong)口(kou)噪(zao)(zao)聲(sheng)(sheng)源(yuan)。利用近(jin)場法(fa)測(ce)量(liang)了各部位的(de)噪(zao)(zao)聲(sheng)(sheng)頻譜，表(biao)明該(gai)型(xing)空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)噪(zao)(zao)聲(sheng)(sheng)呈中高頻特性。2空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)隔(ge)(ge)聲(sheng)(sheng)罩(zhao)(zhao)(zhao)的(de)設計控(kong)制空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)機(ji)體噪(zao)(zao)聲(sheng)(sheng)和(he)電(dian)(dian)動機(ji)噪(zao)(zao)聲(sheng)(sheng)的(de)1合(he)理(li)措(cuo)施是為空(kong)(kong)氣(qi)(qi)(qi)壓(ya)(ya)縮(suo)機(ji)加隔(ge)(ge)聲(sheng)(sheng)罩(zhao)(zhao)(zhao)。重慶噪(zao)(zao)聲(sheng)(sheng)治理(li)隔(ge)(ge)聲(sheng)(sheng)罩(zhao)(zhao)(zhao)降噪(zao)(zao)效果(guo)用插入損失IL表(biao)示，機(ji)械(xie)降噪(zao)(zao)設備(bei)，通過下(xia)式(shi)計算：IL=10lg(1+α100。1TL)dB（1）式(shi)中α—內飾吸聲(sheng)(sheng)材料的(de)吸聲(sheng)(sheng)系數；TL—罩(zhao)(zhao)(zhao)壁的(de)平均(jun)隔(ge)(ge)聲(sheng)(sheng)量(liang)，TL=10lg∑Si/（∑Si10-0。1TLi），dB；Si—組成罩(zhao)(zhao)(zhao)壁的(de)第(di)i個構件(jian)的(de)面積，m2；TLi—該(gai)構件(jian)的(de)隔(ge)(ge)聲(sheng)(sheng)量(liang)，dB。

吸(xi)聲(sheng)材料吸(xi)聲(sheng)系數越(yue)大(da)(da)，吸(xi)聲(sheng)面積越(yue)多(duo)，海(hai)南降(jiang)(jiang)(jiang)噪設(she)備，吸(xi)聲(sheng)效(xiao)(xiao)果越(yue)明(ming)顯，可以(yi)利用(yong)(yong)吸(xi)聲(sheng)天(tian)花(hua)、吸(xi)聲(sheng)墻體(ti)、空間吸(xi)聲(sheng)體(ti)等(deng)進行吸(xi)聲(sheng)降(jiang)(jiang)(jiang)噪。對于室內高噪聲(sheng)的(de)、要(yao)求防爆、需(xu)散熱且(qie)換氣量(liang)較大(da)(da)、頻繁操作或維修的(de)，等(deng)多(duo)種(zhong)大(da)(da)型機械設(she)備，都不宜采用(yong)(yong)隔(ge)聲(sheng)罩的(de)形式，設(she)置一定(ding)高度的(de)室內聲(sheng)屏(ping)障就可以(yi)起到一定(ding)的(de)降(jiang)(jiang)(jiang)噪效(xiao)(xiao)果。降(jiang)(jiang)(jiang)噪，顧名(ming)思(si)義就是減(jian)少噪音對人的(de)影響。常用(yong)(yong)的(de)方法有：1、隔(ge)聲(sheng)房；2、安裝消聲(sheng)器；3、隔(ge)聲(sheng)屏(ping)障；4、減(jian)振(zhen)等(deng)。

隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)罩(zhao)與聲(sheng)(sheng)(sheng)(sheng)(sheng)源設備(bei)(bei)不(bu)得有任(ren)何剛性連(lian)接，以免引起(qi)罩(zhao)體振(zhen)動，輻射噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)。在設計(ji)隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)罩(zhao)時(shi)要注意縫隙(xi)孔洞漏聲(sheng)(sheng)(sheng)(sheng)(sheng)，做好(hao)結構上(shang)節(jie)點(dian)的連(lian)接。隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)罩(zhao)常用(yong)于小型噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)源，但一般機械設備(bei)(bei)在工藝上(shang)很難實(shi)現完(wan)全(quan)封閉，需考(kao)慮通風散熱，可設計(ji)為(wei)局部隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)罩(zhao)。隨著社會的不(bu)斷(duan)發展，車間降噪(zao)(zao)(zao)(zao)設備(bei)(bei)廠，噪(zao)(zao)(zao)(zao)音污染問(wen)題也(ye)越來(lai)越嚴重，尤其是(shi)城(cheng)市(shi)中的交通噪(zao)(zao)(zao)(zao)音不(bu)斷(duan)困(kun)擾著廣大市(shi)民，車間降噪(zao)(zao)(zao)(zao)設備(bei)(bei)，用(yong)構件(jian)將(jiang)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)源和接收(shou)者分隔(ge)開(kai)，阻斷(duan)噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)在空氣中的傳(chuan)播，從而達到降低噪(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)目的的措施稱(cheng)為(wei)隔(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)。