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1) 送風(feng)(feng),包括通氣(qi),如(ru)送鮮風(feng)(feng)和排(pai)氣(qi),這(zhe)個范圍很(hen)廣,如(ru)工(gong)廠車間,生產(chan)場地(di)空氣(qi),由于有害氣(qi)體產(chan)生需(xu)要(yao)排(pai)出(chu)室外,又需(xu)要(yao)把室外空氣(qi)輸送至(zhi)室內(nei)。這(zhe)時就(jiu)要(yao)使用(yong)流(liu)量(liang)大而壓力小(xiao)的(de)(de)空氣(qi)輸送管(guan)(guan)道(dao),螺(luo)(luo)(luo)(luo)旋風(feng)(feng)管(guan)(guan)就(jiu)適用(yong),一(yi)般情況下使用(yong)鍍鋅鐵管(guan)(guan),有腐(fu)蝕性及特別潮濕場所使用(yong)不銹鋼管(guan)(guan)。2) 送冷風(feng)(feng)。常(chang)見的(de)(de)是中央(yang)空調(diao)的(de)(de)管(guan)(guan)道(dao),這(zhe)種管(guan)(guan)道(dao)需(xu)要(yao)加保溫(wen)材(cai)料(liao)(liao)。螺(luo)(luo)(luo)(luo)旋風(feng)(feng)管(guan)(guan)可(ke)內(nei)貼保溫(wen)材(cai)料(liao)(liao),外表看來美觀。3) 排(pai)油(you)煙。飯店、酒樓(lou)、賓館的(de)(de)廚房均有大量(liang)油(you)煙產(chan)生,需(xu)要(yao)排(pai)出(chu),使用(yong)圓形的(de)(de)風(feng)(feng)管(guan)(guan)就(jiu)是油(you)煙囪。在這(zhe)里,螺(luo)(luo)(luo)(luo)旋風(feng)(feng)管(guan)(guan)該叫做油(you)煙管(guan)(guan)。4) 除塵(chen)(chen)。有些(xie)工(gong)廠生產(chan)車間很(hen)多(duo)塵(chen)(chen)埃,需(xu)要(yao)專門的(de)(de)除塵(chen)(chen)裝置,其中量(liang)較大的(de)(de)管(guan)(guan)道(dao),可(ke)使用(yong)螺(luo)(luo)(luo)(luo)旋風(feng)(feng)管(guan)(guan)。5) 散裝物料(liao)(liao)輸送。有些(xie)工(gong)廠的(de)(de)生產(chan)過(guo)程(cheng)中,需(xu)要(yao)輸送松散的(de)(de)顆粒,特別是比重不大的(de)(de)如(ru)發泡塑料(liao)(liao)粒之類的(de)(de)使用(yong)螺(luo)(luo)(luo)(luo)旋風(feng)(feng)管(guan)(guan)造價低、效果(guo)好。
通(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)道(dao)(dao)安裝(zhuang)程(cheng)(cheng)序(xu):(1)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)組(zu)(zu)(zu)裝(zhuang):當(dang)(dang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)較(jiao)短時(shi),可一次(ci)在地面(mian)組(zu)(zu)(zu)裝(zhuang)而成,當(dang)(dang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)較(jiao)長(chang)時(shi),可視(shi)安裝(zhuang)場地的(de)(de)(de)情(qing)況(kuang),在地面(mian)分(fen)段(duan)組(zu)(zu)(zu)裝(zhuang)。組(zu)(zu)(zu)裝(zhuang)時(shi)應(ying)盡量(liang)調整風(feng)(feng)(feng)(feng)道(dao)(dao)的(de)(de)(de)中(zhong)心度(du)和水(shui)平(ping)度(du),避(bi)免風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)扭曲或(huo)上(shang)下起(qi)波,左右擺龍,每(mei)段(duan)風(feng)(feng)(feng)(feng)道(dao)(dao)不(bu)宜超過10m.組(zu)(zu)(zu)裝(zhuang)時(shi),墊片應(ying)墊平(ping),法(fa)(fa)蘭螺(luo)栓應(ying)均(jun)(jun)(jun)勻(yun)擰(ning)緊,螺(luo)母帽(mao)均(jun)(jun)(jun)朝向(xiang)(xiang)同一方(fang)向(xiang)(xiang)。(2)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)就(jiu)(jiu)位:風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)就(jiu)(jiu)位前應(ying)檢(jian)查全部(bu)支(zhi)(zhi)架(jia)(jia)的(de)(de)(de)水(shui)乎度(du)和標高、檢(jian)查支(zhi)(zhi)架(jia)(jia)的(de)(de)(de)牢固程(cheng)(cheng)度(du),風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)就(jiu)(jiu)位可采(cai)(cai)用直接(jie)和吊(diao)具兩種(zhong)方(fang)法(fa)(fa)。對風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)斷面(mian)較(jiao)小,又位置(zhi)(zhi)較(jiao)低的(de)(de)(de)可采(cai)(cai)用人工就(jiu)(jiu)位方(fang)法(fa)(fa),只需搭(da)設(she)簡(jian)易(yi)腳手(shou)架(jia)(jia)即(ji)可。當(dang)(dang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)斷面(mian)較(jiao)大(da)且(qie)管(guan)(guan)(guan)(guan)(guan)段(duan)較(jiao)長(chang)時(shi),可采(cai)(cai)用滑輪、倒鏈(lian)、大(da)繩(sheng)等方(fang)法(fa)(fa)吊(diao)裝(zhuang)。世紀星(xing)介紹為了(le)便于風(feng)(feng)(feng)(feng)道(dao)(dao)就(jiu)(jiu)位,一般多采(cai)(cai)用將(jiang)風(feng)(feng)(feng)(feng)道(dao)(dao)吊(diao)在腳手(shou)架(jia)(jia)上(shang),然(ran)后(hou)再(zai)將(jiang)其抬放在風(feng)(feng)(feng)(feng)道(dao)(dao)支(zhi)(zhi)架(jia)(jia)上(shang)的(de)(de)(de)方(fang)法(fa)(fa)。腳手(shou)架(jia)(jia)應(ying)沿其風(feng)(feng)(feng)(feng)道(dao)(dao)長(chang)度(du)方(fang)向(xiang)(xiang)搭(da)設(she),高度(du)和位置(zhi)(zhi)應(ying)適合(he)施(shi)工操(cao)作(zuo),吊(diao)裝(zhuang)順序(xu)應(ying)先(xian)干管(guan)(guan)(guan)(guan)(guan)后(hou)支(zhi)(zhi)、立管(guan)(guan)(guan)(guan)(guan),吊(diao)起(qi)時(shi),吊(diao)點(dian)應(ying)牢固,兩吊(diao)點(dian)應(ying)均(jun)(jun)(jun)勻(yun)受(shou)力。垂直風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)可采(cai)(cai)用人工和大(da)繩(sheng)輔助就(jiu)(jiu)位。調整風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)保證垂直度(du)要求。(3)風(feng)(feng)(feng)(feng)道(dao)(dao)調直:就(jiu)(jiu)位在支(zhi)(zhi)架(jia)(jia)上(shang)的(de)(de)(de)風(feng)(feng)(feng)(feng)道(dao)(dao),應(ying)撥(bo)正位置(zhi)(zhi),調整風(feng)(feng)(feng)(feng)道(dao)(dao)橫平(ping)豎直,然(ran)后(hou)再(zai)按圖(tu)集(ji)要求固定。
1、70℃防火(huo)(huo)閥(fa)(fa)(fa)用(yong)在(zai)(zai)空調送風(feng)(feng)、通(tong)風(feng)(feng)系(xi)統(tong)管(guan)(guan)道上;平時(shi)(shi)(shi)常開(kai)(kai),發(fa)生火(huo)(huo)災時(shi)(shi)(shi)關(guan)(guan)閉(bi)(bi),聯鎖(suo)風(feng)(feng)機(ji),使風(feng)(feng)機(ji)關(guan)(guan)閉(bi)(bi);2、280℃防火(huo)(huo)閥(fa)(fa)(fa)用(yong)在(zai)(zai)排(pai)(pai)煙(yan)(yan)系(xi)統(tong)管(guan)(guan)道上,平時(shi)(shi)(shi)常開(kai)(kai),發(fa)生火(huo)(huo)災時(shi)(shi)(shi)排(pai)(pai)煙(yan)(yan),當煙(yan)(yan)氣(qi)溫(wen)度(du)達到(dao)280度(du)時(shi)(shi)(shi),防火(huo)(huo)閥(fa)(fa)(fa)關(guan)(guan)閉(bi)(bi),聯鎖(suo)風(feng)(feng)機(ji)關(guan)(guan)閉(bi)(bi);3、280℃防火(huo)(huo)閥(fa)(fa)(fa)應(ying)為常開(kai)(kai),又叫高溫(wen)防火(huo)(huo)閥(fa)(fa)(fa),一般安裝在(zai)(zai)有(you)高溫(wen)環境的(de)通(tong)風(feng)(feng)管(guan)(guan)道中(zhong),當溫(wen)度(du)到(dao)達280℃后(hou)易熔(rong)(rong)(rong)合金熔(rong)(rong)(rong)化,閥(fa)(fa)(fa)門(men)關(guan)(guan)閉(bi)(bi),同時(shi)(shi)(shi)可以用(yong)24V電信號控制。如(ru)果(guo)說(shuo)是280排(pai)(pai)煙(yan)(yan)防火(huo)(huo)閥(fa)(fa)(fa)應(ying)為常閉(bi)(bi),安裝在(zai)(zai)排(pai)(pai)煙(yan)(yan)管(guan)(guan)道中(zhong)發(fa)生火(huo)(huo)災時(shi)(shi)(shi)控制中(zhong)心給(gei)出電信號使其打(da)開(kai)(kai)排(pai)(pai)煙(yan)(yan),當溫(wen)度(du)到(dao)達280時(shi)(shi)(shi)易熔(rong)(rong)(rong)合金熔(rong)(rong)(rong)化閥(fa)(fa)(fa)門(men)關(guan)(guan)閉(bi)(bi),是一種二次動作的(de)閥(fa)(fa)(fa)門(men)。
1.通風、空氣調節系統的風管在下列部位應設置公稱動作溫度為70℃的防火閥。①穿越防火分區處。②穿越通風空調機房的房間隔墻和樓板處。③穿越重要或火災危險性大的場所的房間隔墻和樓板處。④穿越防火分隔處的變形縫兩側。⑤豎向風管與每層水平風管交接處的水平管段上,當建筑內每個防火分區的通風、空氣調節系統值得信賴的電動防火閥均獨立設置時,水平風管與豎向總管的交接處可不設置防火閥。2.公共建筑的浴室、衛生間和廚房的豎向排風管,電動防火閥價格應采(cai)取防止(zhi)回流措施(shi)并宜(yi)在(zai)(zai)支(zhi)管(guan)(guan)上(shang)設(she)置公(gong)稱(cheng)動作(zuo)溫(wen)(wen)度為(wei)70℃的(de)(de)(de)防火(huo)(huo)(huo)閥。公(gong)共(gong)建筑(zhu)內廚房的(de)(de)(de)排(pai)(pai)油煙(yan)(yan)管(guan)(guan)道(dao)宜(yi)按防火(huo)(huo)(huo)分(fen)區設(she)置,且在(zai)(zai)與豎向排(pai)(pai)風管(guan)(guan)連接的(de)(de)(de)支(zhi)管(guan)(guan)處應設(she)置公(gong)稱(cheng)動作(zuo)溫(wen)(wen)度為(wei)150℃的(de)(de)(de)防火(huo)(huo)(huo)閥。 3.排(pai)(pai)煙(yan)(yan)防火(huo)(huo)(huo)閥(280℃)的(de)(de)(de)設(she)置場所:①排(pai)(pai)煙(yan)(yan)管(guan)(guan)進入排(pai)(pai)風機房處;②穿越(yue)防火(huo)(huo)(huo)分(fen)區的(de)(de)(de)排(pai)(pai)煙(yan)(yan)管(guan)(guan)道(dao)上(shang);③排(pai)(pai)煙(yan)(yan)系統的(de)(de)(de)支(zhi)管(guan)(guan)上(shang);
防(fang)(fang)(fang)(fang)火閥:采用70℃溫(wen)度(du)熔斷(duan)器自動關(guan)(guan)閉(bi)(防(fang)(fang)(fang)(fang)火).可輸(shu)出聯動訊(xun)號,用于通風(feng)空(kong)調系(xi)統風(feng)管(guan)(guan)(guan)(guan)內,防(fang)(fang)(fang)(fang)止火勢沿風(feng)管(guan)(guan)(guan)(guan)蔓延。排煙(yan)(yan)防(fang)(fang)(fang)(fang)火閥:電訊(xun)號開(kai)啟,手動開(kai)啟,輸(shu)出動作電訊(xun)號.用于排煙(yan)(yan)風(feng)機吸入(ru)口管(guan)(guan)(guan)(guan)道(dao)或排煙(yan)(yan)支(zhi)(zhi)管(guan)(guan)(guan)(guan)上。采用280℃溫(wen)度(du)熔斷(duan)器重新關(guan)(guan)閉(bi)。防(fang)(fang)(fang)(fang)火閥——通風(feng)空(kong)調系(xi)統70℃:風(feng)管(guan)(guan)(guan)(guan)穿越防(fang)(fang)(fang)(fang)火分區、隔墻樓板、水(shui)平(ping)風(feng)管(guan)(guan)(guan)(guan)的(de)水(shui)平(ping)管(guan)(guan)(guan)(guan)段上(系(xi)統獨立(li)設(she)置可不(bu)設(she))、公共(gong)建筑豎向排風(feng)管(guan)(guan)(guan)(guan)支(zhi)(zhi)管(guan)(guan)(guan)(guan);150℃:公共(gong)建筑廚房排油煙(yan)(yan)管(guan)(guan)(guan)(guan)支(zhi)(zhi)管(guan)(guan)(guan)(guan);排煙(yan)(yan)防(fang)(fang)(fang)(fang)火閥——消防(fang)(fang)(fang)(fang)排煙(yan)(yan)系(xi)統280℃:消防(fang)(fang)(fang)(fang)排煙(yan)(yan)管(guan)(guan)(guan)(guan)道(dao);