靜壓(ya)箱(xiang)是送風系統減(jian)少動壓(ya)、增加靜壓(ya)、穩定氣(qi)流(liu)和減(jian)少氣(qi)流(liu)振動的一種必要的配件(jian)，它可使送風效(xiao)果更加理想(xiang)。靜壓(ya)箱(xiang)是一種既能允許氣(qi)流(liu)通過，又能有(you)效(xiao)地阻止(zhi)或(huo)減(jian)弱聲能向(xiang)外傳播的裝置。

消聲(sheng)器

消(xiao)聲分類

1、阻式消(xiao)聲(sheng)器:是(shi)通過箱體內附吸聲(sheng)材料(liao)來吸收(shou)聲(sheng)能降低噪音，一般是(shi)用來消(xiao)除高(gao)、中(zhong)頻噪聲(sheng)。但是(shi)由于結(jie)構的(de)(de)原因，在高(gao)溫、高(gao)濕、高(gao)速的(de)(de)情況下不適用。

2、抗式消聲器:是通過改變(bian)截面(mian)來消聲的(de)。我們常用的(de)消聲靜(jing)壓箱都是這個原理(li)。一般降(jiang)低中(zhong)、低頻噪音，對(dui)風系統沒有(you)具體的(de)要求。

3、阻(zu)(zu)抗(kang)復(fu)合(he)式(shi)(shi)(shi):當然是(shi)結(jie)合(he)二者的(de)(de)結(jie)構原理。可(ke)以消(xiao)(xiao)(xiao)除低中(zhong)(zhong)高頻(pin)(pin)噪音。但是(shi)對風(feng)系(xi)(xi)統(tong)的(de)(de)要求同(tong)阻(zu)(zu)式(shi)(shi)(shi)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)。對于(yu)一般的(de)(de)民用(yong)(yong)(yong)空調通風(feng)系(xi)(xi)統(tong)，我個人認為(wei)(wei)選用(yong)(yong)(yong)阻(zu)(zu)抗(kang)復(fu)合(he)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)為(wei)(wei)好。 阻(zu)(zu)性(xing)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)具(ju)有良(liang)好的(de)(de)中(zhong)(zhong)高頻(pin)(pin)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)性(xing)能。按(an)氣(qi)流(liu)通道幾(ji)何形(xing)狀不(bu)同(tong)，可(ke)分為(wei)(wei)直管(guan)式(shi)(shi)(shi)、片式(shi)(shi)(shi)、折(zhe)板(ban)式(shi)(shi)(shi)、迷宮式(shi)(shi)(shi)、蜂窩式(shi)(shi)(shi)、聲(sheng)(sheng)(sheng)(sheng)流(liu)式(shi)(shi)(shi)、障板(ban)式(shi)(shi)(shi)、彎頭式(shi)(shi)(shi)等(deng)(deng)。抗(kang)性(xing)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)適用(yong)(yong)(yong)于(yu)消(xiao)(xiao)(xiao)除中(zhong)(zhong)低頻(pin)(pin)噪聲(sheng)(sheng)(sheng)(sheng)或窄(zhai)帶(dai)噪聲(sheng)(sheng)(sheng)(sheng)。按(an)其作用(yong)(yong)(yong)原理不(bu)同(tong)，可(ke)分為(wei)(wei)擴張式(shi)(shi)(shi)、共振腔式(shi)(shi)(shi)和干涉(she)式(shi)(shi)(shi)等(deng)(deng)多(duo)種型式(shi)(shi)(shi)。阻(zu)(zu)抗(kang)復(fu)合(he)式(shi)(shi)(shi)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)，有共振腔、擴張室(shi)、穿孔屏等(deng)(deng)聲(sheng)(sheng)(sheng)(sheng)學濾波器(qi)(qi)件，綜合(he)了阻(zu)(zu)性(xing)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)良(liang)好的(de)(de)中(zhong)(zhong)高頻(pin)(pin)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)特性(xing)和阻(zu)(zu)抗(kang)性(xing)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)較好的(de)(de)低頻(pin)(pin)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)特性(xing)，因(yin)此(ci)其消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)帶(dai)寬，它是(shi)最(zui)常用(yong)(yong)(yong)的(de)(de)標準(zhun)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)系(xi)(xi)列(lie)之一。適宜(yi)風(feng)速為(wei)(wei)6~8米(mi)/秒(miao)，最(zui)高可(ke)達到(dao)8~12米(mi)，可(ke)單獨使用(yong)(yong)(yong)，也可(ke)串聯使用(yong)(yong)(yong)。消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)效果(guo):低頻(pin)(pin)10~15dB/m，中(zhong)(zhong)頻(pin)(pin)15~25dB/m，高頻(pin)(pin)25~30dB/m，平均(jun)阻(zu)(zu)力系(xi)(xi)數為(wei)(wei)0.4。根據《空氣(qi)調節》，消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)彎頭、消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)靜壓箱均(jun)屬于(yu)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)(qi)的(de)(de)一種。