正壓(ya)送(song)(song)風(feng)機(ji)是指向逃生(sheng)(sheng)(sheng)(sheng)樓(lou)道里送(song)(song)風(feng)的(de)風(feng)機(ji)。它將室外風(feng)壓(ya)送(song)(song)入室內。當建筑物發生(sheng)(sheng)(sheng)(sheng)火災時(shi),會產生(sheng)(sheng)(sheng)(sheng)大量煙霧(wu)、一氧化碳(tan)等有毒氣體并遮擋(dang)視(shi)線,通(tong)過正壓(ya)送(song)(song)風(feng)機(ji)給逃生(sheng)(sheng)(sheng)(sheng)的(de)消防樓(lou)梯送(song)(song)風(feng),使室內的(de)煙霧(wu)不能抵達樓(lou)梯,給人(ren)們逃生(sheng)(sheng)(sheng)(sheng)創造(zao)條件。
加壓送風方式的設置要(yao)求有哪些
送(song)風(feng)機的(de)進風(feng)口(kou)(kou)不宜(yi)與排煙機的(de)出風(feng)口(kou)(kou)設在(zai)同一層(ceng)面。如設在(zai)同一層(ceng)面時,送(song)風(feng)機的(de)進風(feng)口(kou)(kou)應不受煙氣影響
送風(feng)機的(de)進風(feng)口宜直接與(yu)室外空氣(qi)相聯通(tong)
設常開加壓送風(feng)(feng)(feng)口的系統,其送風(feng)(feng)(feng)機(ji)的出風(feng)(feng)(feng)管或進風(feng)(feng)(feng)管上應加裝單向風(feng)(feng)(feng)閥或電動風(feng)(feng)(feng)閥
當風機(ji)不設于(yu)該系統的***處(chu)時(shi),應設與(yu)風機(ji)聯動(dong)的電動(dong)風閥
送(song)風(feng)機(ji)應(ying)設(she)置在(zai)風(feng)機(ji)房(fang)內(除排煙風(feng)機(ji)外)或室外屋面上。風(feng)機(ji)房(fang)應(ying)采(cai)用耐火(huo)不(bu)低于(yu)2.0h的(de)隔墻(qiang)和1.5h的(de)樓板(ban)及***防火(huo)門與(yu)其(qi)它部位隔開
當條件(jian)受到限制時,可設置(zhi)在專用空間內,空間四周的圍護結構應采用耐火不低于(yu)1.0h的不燃燒體
上(shang)面是加(jia)壓送風(feng)機的相關事項,希望能(neng)對您有所幫助