如何用技術控(kong)制消防排(pai)煙(yan)風機噪聲

消防排煙風機噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)，不(bu)(bu)(bu)(bu)只與(yu)其風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)結構(gou)方式(shi)有(you)關，而且還同(tong)(tong)(tong)其作(zuo)(zuo)業(ye)狀(zhuang)況(由(you)全壓(ya)和(he)風(feng)(feng)量(liang)抉擇)有(you)關。不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)系列(lie)、不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)類(lei)型的(de)(de)(de)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)，其聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)是(shi)(shi)不(bu)(bu)(bu)(bu)一(yi)(yi)樣的(de)(de)(de)。同(tong)(tong)(tong)一(yi)(yi)消(xiao)(xiao)(xiao)防(fang)排煙(yan)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)，在(zai)(zai)(zai)(zai)不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)工(gong)況下(xia)(xia)，其聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)也(ye)是(shi)(shi)不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)的(de)(de)(de)。風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)作(zuo)(zuo)業(ye)在(zai)(zai)(zai)(zai)最高功(gong)(gong)率(lv)點時，聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)往往取量(liang)低(di)(di)(di)值(zhi)。       為了(le)(le)更(geng)好表(biao)征風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)功(gong)(gong)能(neng)(neng)，出(chu)現(xian)(xian)了(le)(le)比(bi)A級(ji)(ji)(ji)這個概念。比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)是(shi)(shi)指(zhi)通風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)在(zai)(zai)(zai)(zai)單位流(liu)量(liang)(1米/分)和(he)單位全壓(ya)(1毫米水柱)下(xia)(xia)所發作(zuo)(zuo)的(de)(de)(de)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)。。同(tong)(tong)(tong)一(yi)(yi)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)在(zai)(zai)(zai)(zai)不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)工(gong)況下(xia)(xia)的(de)(de)(de)比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)是(shi)(shi)不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)的(de)(de)(de)。在(zai)(zai)(zai)(zai)最高功(gong)(gong)率(lv)點上(shang)，比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)取量(liang)低(di)(di)(di)值(zhi)。不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)系列(lie)的(de)(de)(de)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)在(zai)(zai)(zai)(zai)額(e)定工(gong)況下(xia)(xia)的(de)(de)(de)比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)表(biao)征了(le)(le)該系列(lie)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)的(de)(de)(de)凹凸(tu)和(he)產(chan)品質量(liang)的(de)(de)(de)好壞(huai)。所以現(xian)(xian)在(zai)(zai)(zai)(zai)國(guo)(guo)(guo)內外(wai)多選(xuan)用(yong)(yong)(yong)比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)作(zuo)(zuo)為風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)限值(zhi)指(zhi)標。同(tong)(tong)(tong)一(yi)(yi)系列(lie)不(bu)(bu)(bu)(bu)同(tong)(tong)(tong)類(lei)型的(de)(de)(de)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)，其比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)大體鄰近(jin)。消(xiao)(xiao)(xiao)防(fang)排煙(yan)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)加(jia)工(gong)精度愈(yu)高，氣動功(gong)(gong)能(neng)(neng)愈(yu)好，比(bi)A聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)級(ji)(ji)(ji)愈(yu)低(di)(di)(di)。       控制風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)常(chang)用(yong)(yong)(yong)方法是(shi)(shi)在(zai)(zai)(zai)(zai)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)進(jin)、出(chu)口處裝置阻性(xing)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)器。關于有(you)更(geng)高降(jiang)噪(zao)(zao)(zao)要求(qiu)的(de)(de)(de)場(chang)合，可(ke)(ke)以選(xuan)用(yong)(yong)(yong)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)隔聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)箱，并在(zai)(zai)(zai)(zai)機(ji)(ji)(ji)(ji)(ji)(ji)組與(yu)地基之間安排減震(zhen)器。采用(yong)(yong)(yong)上(shang)述(shu)方法，一(yi)(yi)般可(ke)(ke)獲得明顯的(de)(de)(de)降(jiang)噪(zao)(zao)(zao)作(zuo)(zuo)用(yong)(yong)(yong)。       國(guo)(guo)(guo)內現(xian)(xian)已有(you)許多噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)控制設備廠，可(ke)(ke)提供各類(lei)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)噪(zao)(zao)(zao)器、消(xiao)(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)隔聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)箱及減震(zhen)器。消(xiao)(xiao)(xiao)防(fang)排煙(yan)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)問題，從技術上(shang)來講(jiang)，在(zai)(zai)(zai)(zai)我國(guo)(guo)(guo)基本上(shang)已可(ke)(ke)得到(dao)有(you)用(yong)(yong)(yong)的(de)(de)(de)控制，而且低(di)(di)(di)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)(sheng)風(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)也(ye)已開端出(chu)現(xian)(xian)。

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德州凱億(yi)  2022 05 04  于

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