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地(di)址(zhi):重慶市江津區(qu)雙福新區(qu)福星大道937號(hao)鑫成瑞暖通廠區(qu)
消防排煙風機風量與送風機風量計算方法是根據建筑面積來確定的,每個防煙分區都需要獨立計算其排煙量,當排煙風機擔負一個防煙分區的時候可按平方米面積不小于60m3/h計算,擔負多個防煙分區則按平方米面積不小于120m3/h計算。送風量按排煙量的50%計算。每個防煙分區不應大于500平方。常見的消防防排煙系統中,排煙量一般根據大防煙分區面積500*120等于60000立方每小時計算,在家用中央空調設計排煙量的時候要注意漏風量,一般可按小漏風量10%計算。例如:當建筑面積為1000平方時,家用中央空調價格需要設置兩個防煙(yan)(yan)分(fen)區,每個防煙(yan)(yan)分(fen)區的(de)大面積為500平(ping)方(fang),排(pai)煙(yan)(yan)量(liang)是500*1203/h=600003/h,再加上小(xiao)漏風量(liang)10%為60003/h,總排(pai)煙(yan)(yan)量(liang)應為660003/h,其中送(song)風量(liang)為排(pai)煙(yan)(yan)量(liang)的(de)50%應為330003/h。
防(fang)(fang)(fang)火(huo)(huo)閥(fa):采用(yong)70℃溫度熔(rong)斷器自動(dong)(dong)關(guan)(guan)閉(防(fang)(fang)(fang)火(huo)(huo)).可輸(shu)出聯動(dong)(dong)訊號,用(yong)于(yu)通風(feng)空(kong)調系統(tong)風(feng)管(guan)內,防(fang)(fang)(fang)止火(huo)(huo)勢沿風(feng)管(guan)蔓延。排煙(yan)防(fang)(fang)(fang)火(huo)(huo)閥(fa):電(dian)訊號開(kai)啟,手動(dong)(dong)開(kai)啟,輸(shu)出動(dong)(dong)作(zuo)電(dian)訊號.用(yong)于(yu)排煙(yan)風(feng)機吸(xi)入口(kou)管(guan)道或(huo)排煙(yan)支管(guan)上。采用(yong)280℃溫度熔(rong)斷器重新關(guan)(guan)閉。防(fang)(fang)(fang)火(huo)(huo)閥(fa)——通風(feng)空(kong)調系統(tong)70℃:風(feng)管(guan)穿越(yue)防(fang)(fang)(fang)火(huo)(huo)分(fen)區、隔墻樓板、水平(ping)風(feng)管(guan)的(de)水平(ping)管(guan)段上(系統(tong)獨立設置可不設)、公共建筑豎(shu)向排風(feng)管(guan)支管(guan);150℃:公共建筑廚房排油煙(yan)管(guan)支管(guan);排煙(yan)防(fang)(fang)(fang)火(huo)(huo)閥(fa)——消(xiao)防(fang)(fang)(fang)排煙(yan)系統(tong)280℃:消(xiao)防(fang)(fang)(fang)排煙(yan)管(guan)道;
1,通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)安(an)裝(zhuang)在(zai)支架上,應設托座。2,通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)如有(you)穿出屋面外部分,應設置防(fang)雨罩(zhao)。3,通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)采用(yong)無法蘭連時,接口處應嚴密(mi)牢(lao)固(gu)。通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)連接兩(liang)平面應平直,不得錯位及扭曲。4,輸(shu)送易(yi)產生冷凝(ning)水的(de)通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan),安(an)裝(zhuang)應設計坡度(du)。通風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)底部不能有(you)縱向的(de)接縫, 如必須有(you)接縫,則應采用(yong)密(mi)封方式。通風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道安(an)裝(zhuang)完畢后,應進行嚴密(mi)性試驗(yan),如發現異常(chang)情況,通風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道的(de)制作、安(an)裝(zhuang)、檢(jian)驗(yan)和試驗(yan),是一個(ge)連貫的(de)工(gong)程,做到安(an)全(quan)適用(yong),經濟合理,方便施工(gong),確保通風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)道的(de)工(gong)程質量。
鑒于(yu)軸(zhou)流風(feng)(feng)(feng)(feng)機(ji)(ji)有(you)紊流區(qu)(qu)的(de)性能(neng)特點(dian),在(zai)(zai)選型和使(shi)(shi)用(yong)(yong)(yong)時,需要注意以下兩點(dian):建議(yi)使(shi)(shi)用(yong)(yong)(yong)在(zai)(zai)空(kong)(kong)曠(kuang)環境中(zhong),軸(zhou)流風(feng)(feng)(feng)(feng)機(ji)(ji)的(de)輸入功(gong)率(lv)隨系統(tong)靜壓的(de)增大(da)而(er)增大(da),而(er)在(zai)(zai)紊流區(qu)(qu),輸入功(gong)率(lv)的(de)增大(da)幅(fu)度會(hui)(hui)更大(da)。因此,軸(zhou)流風(feng)(feng)(feng)(feng)機(ji)(ji)一般(ban)多應用(yong)(yong)(yong)在(zai)(zai)有(you)較大(da)空(kong)(kong)曠(kuang)環境的(de)場合下,可(ke)以使(shi)(shi)其工(gong)作在(zai)(zai)靜壓較低的(de)環境下,降低功(gong)耗,保(bao)證穩定性和壽命。定期(qi)(qi)清(qing)理風(feng)(feng)(feng)(feng)道(dao),當(dang)軸(zhou)流風(feng)(feng)(feng)(feng)機(ji)(ji)應用(yong)(yong)(yong)在(zai)(zai)較為封閉的(de)風(feng)(feng)(feng)(feng)道(dao)系統(tong)中(zhong)時,長期(qi)(qi)運行后風(feng)(feng)(feng)(feng)道(dao)中(zhong)的(de)積(ji)灰、垃圾(ji)逐(zhu)漸變(bian)多,會(hui)(hui)使(shi)(shi)風(feng)(feng)(feng)(feng)道(dao)內的(de)靜壓逐(zhu)漸增加,使(shi)(shi)得風(feng)(feng)(feng)(feng)機(ji)(ji)的(de)運行工(gong)況點(dian)逐(zhu)漸左移。這不(bu)僅會(hui)(hui)降低風(feng)(feng)(feng)(feng)機(ji)(ji)性能(neng),更重要的(de)是會(hui)(hui)增加軸(zhou)流風(feng)(feng)(feng)(feng)機(ji)(ji)進入紊流區(qu)(qu)的(de)風(feng)(feng)(feng)(feng)險。因此必(bi)須要定期(qi)(qi)清(qing)理風(feng)(feng)(feng)(feng)道(dao),保(bao)證風(feng)(feng)(feng)(feng)機(ji)(ji)工(gong)況點(dian)不(bu)產生較大(da)偏移。