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風(feng)管(guan)(guan)(guan)主(zhu)要(yao)(yao)指中(zhong)央(yang)空調(diao)系統的(de)(de)通風(feng)管(guan)(guan)(guan)道,它常(chang)常(chang)被忽視,但(dan)(dan)卻是(shi)空調(diao)系統的(de)(de)重(zhong)要(yao)(yao)組成部分(fen),目前(qian)常(chang)見的(de)(de)風(feng)管(guan)(guan)(guan)主(zhu)要(yao)(yao)有四種(zhong):1)鍍鋅薄(bo)鋼(gang)板(ban)風(feng)管(guan)(guan)(guan);2)無(wu)(wu)機玻(bo)(bo)璃鋼(gang)風(feng)管(guan)(guan)(guan);3)復合玻(bo)(bo)纖板(ban)風(feng)管(guan)(guan)(guan);4)纖維織物風(feng)管(guan)(guan)(guan)。鍍鋅薄(bo)鋼(gang)板(ban)風(feng)管(guan)(guan)(guan):早(zao)使用的(de)(de)風(feng)管(guan)(guan)(guan),采用鍍鋅薄(bo)鋼(gang)板(ban)制作,適合含濕量小(xiao)的(de)(de)一(yi)般性(xing)氣體的(de)(de)輸送,有易(yi)生(sheng)銹,無(wu)(wu)保(bao)(bao)溫(wen)和消聲(sheng)功能,制作安(an)裝周期(qi)長的(de)(de)特(te)點。無(wu)(wu)機玻(bo)(bo)璃鋼(gang)風(feng)管(guan)(guan)(guan):較新的(de)(de)風(feng)管(guan)(guan)(guan)類型,采用玻(bo)(bo)璃纖維增強無(wu)(wu)機材料制作,遇(yu)火不燃、耐(nai)腐蝕、份量重(zhong),硬度大但(dan)(dan)較脆(cui),受自重(zhong)影響易(yi)變形酥裂,無(wu)(wu)保(bao)(bao)溫(wen)和消聲(sheng)性(xing)能,制作安(an)裝周期(qi)長。
消防(fang)排(pai)(pai)煙(yan)風(feng)(feng)(feng)機(ji)(ji)(ji)首先應(ying)(ying)該滿足溫(wen)(wen)度(du)和(he)時間的(de)(de)特性(xing)(xing)(xing),即國家(jia)規定280℃/0.5h;其次,在一般環境溫(wen)(wen)度(du)下(xia)(xia)(xia),可以(yi)保證(zheng)有效(xiao)的(de)(de)排(pai)(pai)煙(yan)控制量。此外(wai)還要(yao)(yao)求(qiu)(qiu)消防(fang)排(pai)(pai)煙(yan)風(feng)(feng)(feng)機(ji)(ji)(ji)能(neng)(neng)夠進行周期性(xing)(xing)(xing)的(de)(de)實驗,能(neng)(neng)夠發現(xian)其中的(de)(de)不(bu)足,并加(jia)以(yi)改(gai)進;可以(yi)適用(yong)(yong)各種(zhong)通(tong)風(feng)(feng)(feng)要(yao)(yao)求(qiu)(qiu)的(de)(de)管道(dao)(dao),便于安(an)(an)裝(zhuang)與使用(yong)(yong)。消防(fang)排(pai)(pai)煙(yan)風(feng)(feng)(feng)機(ji)(ji)(ji)的(de)(de)性(xing)(xing)(xing)能(neng)(neng)優(you)良(liang)、耐高(gao)(gao)(gao)溫(wen)(wen)性(xing)(xing)(xing)能(neng)(neng)良(liang)好(hao)、效(xiao)率(lv)高(gao)(gao)(gao)、占地(di)(di)比離(li)心(xin)風(feng)(feng)(feng)機(ji)(ji)(ji)少、高(gao)(gao)(gao)溫(wen)(wen)性(xing)(xing)(xing)能(neng)(neng)優(you)良(liang)。消防(fang)排(pai)(pai)煙(yan)風(feng)(feng)(feng)機(ji)(ji)(ji)能(neng)(neng)在300℃高(gao)(gao)(gao)溫(wen)(wen)條件下(xia)(xia)(xia)連續運(yun)行60分鐘以(yi)上(shang),100℃溫(wen)(wen)度(du)條件下(xia)(xia)(xia)連續20小時不(bu)損壞(huai),應(ying)(ying)用(yong)(yong)范圍廣,可根據(ju)高(gao)(gao)(gao)級民用(yong)(yong)建筑(zhu)的(de)(de)不(bu)同要(yao)(yao)求(qiu)(qiu),采(cai)用(yong)(yong)變速(su)或多(duo)速(su)的(de)(de)驅(qu)動型式,消防(fang)排(pai)(pai)煙(yan)風(feng)(feng)(feng)機(ji)(ji)(ji)廣泛(fan)應(ying)(ying)用(yong)(yong)于高(gao)(gao)(gao)級民用(yong)(yong)建筑(zhu)、烤箱(xiang)、地(di)(di)下(xia)(xia)(xia)車(che)庫、隧(sui)道(dao)(dao)等場(chang)合。安(an)(an)裝(zhuang)方便,可直接(jie)和(he)墻壁(bi)安(an)(an)裝(zhuang),安(an)(an)裝(zhuang)可采(cai)用(yong)(yong)垂直式、水平(ping)式或吊裝(zhuang)式,很大(da)程度(du)上(shang)節(jie)省(sheng)了占地(di)(di)面積(ji)。
消防排煙風機廠家產品由多個配件構成,比如說葉輪、機殼、軸承、主軸等等構成,而不銹鋼通風管道不同的配件也起著不同的作用。首先對于葉輪而言,一般采用優質鍍鋅板制作而成的葉片,通過傾斜設計,與拉伸成型的前盤一起形成了更合理的流道,從而保證了葉輪的高效率。而軸承是帶鑄造座的外球面軸承,可以通過外球面配合調整同軸度的誤差。主軸一般采用45#鋼經調制處理后精車而成,保證足夠的光潔度和尺寸精。另外兩層板內部填充消聲材料,推薦不銹鋼通風管道能(neng)更有(you)效(xiao)隔熱降噪。消防排(pai)煙(yan)風機(ji)不能(neng)距離隧(sui)道(dao)的邊壁(bi)太(tai)近,避免影響(xiang)通(tong)風效(xiao)果。通(tong)風系統(tong)從安全隧(sui)道(dao)向通(tong)過橫(heng)通(tong)道(dao)向事故隧(sui)道(dao)方向送風,抑制(zhi)煙(yan)氣進入(ru)橫(heng)通(tong)道(dao)及(ji)未(wei)發生事故的隧(sui)道(dao),滿足疏(shu)散人員迎著新(xin)(xin)風進入(ru)橫(heng)通(tong)道(dao)和安全隧(sui)道(dao)內,同時保證等待區域所需要(yao)的新(xin)(xin)鮮(xian)空(kong)氣。充分利(li)用定點救援站(zhan)處的斜井和隧(sui)道(dao)兩端的消防排(pai)煙(yan)風機(ji)作為(wei)送入(ru)新(xin)(xin)風和排(pai)煙(yan)的通(tong)道(dao),通(tong)風必須(xu)維持橫(heng)通(tong)道(dao)口處于正壓(ya)狀態,防止煙(yan)氣流向通(tong)道(dao)內。
防(fang)(fang)(fang)火(huo)(huo)(huo)閥:采用(yong)(yong)70℃溫(wen)度(du)熔斷器自動(dong)(dong)關(guan)閉(防(fang)(fang)(fang)火(huo)(huo)(huo)).可輸出(chu)聯動(dong)(dong)訊(xun)號(hao),用(yong)(yong)于通(tong)風(feng)(feng)(feng)空(kong)調系統風(feng)(feng)(feng)管(guan)(guan)內(nei),防(fang)(fang)(fang)止火(huo)(huo)(huo)勢(shi)沿(yan)風(feng)(feng)(feng)管(guan)(guan)蔓延。排(pai)煙防(fang)(fang)(fang)火(huo)(huo)(huo)閥:電(dian)訊(xun)號(hao)開(kai)(kai)啟,手動(dong)(dong)開(kai)(kai)啟,輸出(chu)動(dong)(dong)作電(dian)訊(xun)號(hao).用(yong)(yong)于排(pai)煙風(feng)(feng)(feng)機吸(xi)入口管(guan)(guan)道或排(pai)煙支(zhi)管(guan)(guan)上。采用(yong)(yong)280℃溫(wen)度(du)熔斷器重新關(guan)閉。防(fang)(fang)(fang)火(huo)(huo)(huo)閥——通(tong)風(feng)(feng)(feng)空(kong)調系統70℃:風(feng)(feng)(feng)管(guan)(guan)穿越防(fang)(fang)(fang)火(huo)(huo)(huo)分區、隔墻樓板、水平(ping)風(feng)(feng)(feng)管(guan)(guan)的水平(ping)管(guan)(guan)段(duan)上(系統獨(du)立(li)設置(zhi)可不設)、公共建筑(zhu)豎(shu)向排(pai)風(feng)(feng)(feng)管(guan)(guan)支(zhi)管(guan)(guan);150℃:公共建筑(zhu)廚房(fang)排(pai)油煙管(guan)(guan)支(zhi)管(guan)(guan);排(pai)煙防(fang)(fang)(fang)火(huo)(huo)(huo)閥——消防(fang)(fang)(fang)排(pai)煙系統280℃:消防(fang)(fang)(fang)排(pai)煙管(guan)(guan)道;