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排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)閥是否存(cun)在(zai)常(chang)開的(de)(de)?這里的(de)(de)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)閥也就相(xiang)當于排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou),對于常(chang)見的(de)(de)板(ban)式(shi)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou)與(yu)(yu)多葉排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou),市場(chang)(chang)上(shang)(shang)常(chang)見的(de)(de)均為(wei)常(chang)閉(bi)形(xing)式(shi),一(yi)(yi)般(ban)不(bu)需要(yao)(yao)常(chang)開的(de)(de)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou)。對于排(pai)(pai)(pai)風(feng)(feng)(feng)(feng)(feng)兼排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)系統的(de)(de)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou),可(ke)以采用“單層(ceng)百(bai)葉 + 280 ℃ 電(dian)控(kong)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)防(fang)(fang)火(huo)(huo)(huo)閥”進行控(kong)制。70 ℃防(fang)(fang)火(huo)(huo)(huo)閥的(de)(de)應用場(chang)(chang)合有哪(na)些?防(fang)(fang)火(huo)(huo)(huo)閥應用場(chang)(chang)合很(hen)多,在(zai)空調(diao)(diao)送回(hui)風(feng)(feng)(feng)(feng)(feng)干管,通風(feng)(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)(feng)機(ji)進出(chu)口(kou),風(feng)(feng)(feng)(feng)(feng)井入口(kou),管道穿越防(fang)(fang)火(huo)(huo)(huo)分(fen)區 / 變形(xing)縫(feng) / 重要(yao)(yao)房(fang)(fang)間(jian)(jian) / 機(ji)房(fang)(fang) / 火(huo)(huo)(huo)災(zai)危險性大的(de)(de)房(fang)(fang)間(jian)(jian)的(de)(de)隔墻(qiang)或(huo)樓板(ban),垂直風(feng)(feng)(feng)(feng)(feng)管與(yu)(yu)每層(ceng)水平(ping)風(feng)(feng)(feng)(feng)(feng)管連接處。等很(hen)多場(chang)(chang)合都需要(yao)(yao)設置防(fang)(fang)火(huo)(huo)(huo)閥。 空調(diao)(diao)新風(feng)(feng)(feng)(feng)(feng)取(qu)風(feng)(feng)(feng)(feng)(feng)管是否需要(yao)(yao)安(an)裝(zhuang)防(fang)(fang)火(huo)(huo)(huo)閥?一(yi)(yi)般(ban)不(bu)需要(yao)(yao)。特別是如果(guo)回(hui)風(feng)(feng)(feng)(feng)(feng)、送風(feng)(feng)(feng)(feng)(feng)均安(an)裝(zhuang)防(fang)(fang)火(huo)(huo)(huo)閥之(zhi)后,新風(feng)(feng)(feng)(feng)(feng)取(qu)風(feng)(feng)(feng)(feng)(feng)口(kou)就沒有必要(yao)(yao)在(zai)安(an)裝(zhuang)防(fang)(fang)火(huo)(huo)(huo)閥了。并且一(yi)(yi)般(ban)取(qu)風(feng)(feng)(feng)(feng)(feng)口(kou)位(wei)于室外,且按照規范要(yao)(yao)求與(yu)(yu)排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou)保持(chi)10 m以上(shang)(shang)的(de)(de)水平(ping)距離(li)或(huo)3 m以上(shang)(shang)的(de)(de)垂直距離(li)( 排(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口(kou)在(zai)上(shang)(shang) ),一(yi)(yi)般(ban)煙(yan)(yan)(yan)(yan)氣不(bu)會從新風(feng)(feng)(feng)(feng)(feng)口(kou)進入空調(diao)(diao),所以一(yi)(yi)般(ban)不(bu)需要(yao)(yao)安(an)裝(zhuang)防(fang)(fang)火(huo)(huo)(huo)閥。
風(feng)(feng)機(ji)(ji)(ji)(ji)分(fen)類可以(yi)按(an)氣(qi)(qi)(qi)體流(liu)(liu)動(dong)(dong)(dong)的(de)方向(xiang)(xiang),分(fen)為離(li)心(xin)(xin)式(shi)、軸(zhou)流(liu)(liu)式(shi)、斜流(liu)(liu)式(shi)和(he)橫流(liu)(liu)式(shi)等類型。這種風(feng)(feng)機(ji)(ji)(ji)(ji)分(fen)類的(de)機(ji)(ji)(ji)(ji)器有(you):離(li)心(xin)(xin)風(feng)(feng)機(ji)(ji)(ji)(ji)工(gong)作時,動(dong)(dong)(dong)力機(ji)(ji)(ji)(ji)(主要是電(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji))驅動(dong)(dong)(dong)葉(xie)輪(lun)(lun)在(zai)(zai)(zai)(zai)蝸形機(ji)(ji)(ji)(ji)殼內旋(xuan)轉,空氣(qi)(qi)(qi)經吸(xi)氣(qi)(qi)(qi)口(kou)從葉(xie)輪(lun)(lun)中(zhong)心(xin)(xin)處吸(xi)入。由(you)于葉(xie)片對氣(qi)(qi)(qi)體的(de)動(dong)(dong)(dong)力作用(yong)(yong)(yong),氣(qi)(qi)(qi)體壓力和(he)速度(du)得以(yi)提高(gao),并(bing)在(zai)(zai)(zai)(zai)離(li)心(xin)(xin)力作用(yong)(yong)(yong)下沿著葉(xie)道甩向(xiang)(xiang)機(ji)(ji)(ji)(ji)殼,從排氣(qi)(qi)(qi)口(kou)排出。因氣(qi)(qi)(qi)體在(zai)(zai)(zai)(zai)葉(xie)輪(lun)(lun)內的(de)流(liu)(liu)動(dong)(dong)(dong)主要是在(zai)(zai)(zai)(zai)徑(jing)向(xiang)(xiang)平面內,故(gu)又稱徑(jing)流(liu)(liu)風(feng)(feng)機(ji)(ji)(ji)(ji)。離(li)心(xin)(xin)風(feng)(feng)機(ji)(ji)(ji)(ji)主要由(you)葉(xie)輪(lun)(lun)和(he)機(ji)(ji)(ji)(ji)殼組成(cheng),小(xiao)型風(feng)(feng)機(ji)(ji)(ji)(ji)的(de)葉(xie)輪(lun)(lun)直接裝在(zai)(zai)(zai)(zai)電(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)上中(zhong)、大型風(feng)(feng)機(ji)(ji)(ji)(ji)通(tong)過聯(lian)軸(zhou)器或皮帶輪(lun)(lun)與電(dian)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)聯(lian)接。離(li)心(xin)(xin)風(feng)(feng)機(ji)(ji)(ji)(ji)一般為單(dan)側進氣(qi)(qi)(qi),用(yong)(yong)(yong)單(dan)級葉(xie)輪(lun)(lun);流(liu)(liu)量大的(de)可雙側進氣(qi)(qi)(qi),用(yong)(yong)(yong)兩個(ge)背靠背的(de)葉(xie)輪(lun)(lun),又稱為雙吸(xi)式(shi)離(li)心(xin)(xin)風(feng)(feng)機(ji)(ji)(ji)(ji)。
在(zai)了(le)(le)(le)解空(kong)(kong)調(diao)壓(ya)(ya)(ya)(ya)縮(suo)機的(de)工(gong)(gong)作原理之前,先(xian)來認識下空(kong)(kong)調(diao)壓(ya)(ya)(ya)(ya)縮(suo)機的(de)工(gong)(gong)作回(hui)(hui)路(lu)。空(kong)(kong)調(diao)壓(ya)(ya)(ya)(ya)縮(suo)機的(de)工(gong)(gong)作回(hui)(hui)路(lu)分(fen)為蒸發(fa)(fa)(fa)區(qu)(qu)(qu)和冷凝區(qu)(qu)(qu),空(kong)(kong)調(diao)壓(ya)(ya)(ya)(ya)縮(suo)機在(zai)空(kong)(kong)調(diao)制(zhi)冷劑回(hui)(hui)路(lu)中(zhong)(zhong)起壓(ya)(ya)(ya)(ya)縮(suo)驅動制(zhi)冷劑的(de)作用。空(kong)(kong)調(diao)制(zhi)冷時,中(zhong)(zhong)央(yang)空(kong)(kong)調(diao)壓(ya)(ya)(ya)(ya)縮(suo)機把制(zhi)冷劑從(cong)(cong)低(di)壓(ya)(ya)(ya)(ya)區(qu)(qu)(qu)抽取來經緊(jin)縮(suo)后送到高壓(ya)(ya)(ya)(ya)區(qu)(qu)(qu)冷卻(que)凝結,經過(guo)(guo)散熱片分(fen)發(fa)(fa)(fa)出熱量到空(kong)(kong)氣中(zhong)(zhong),制(zhi)冷劑也從(cong)(cong)氣態變(bian)成液態,壓(ya)(ya)(ya)(ya)力(li)升高。制(zhi)冷劑再(zai)(zai)(zai)從(cong)(cong)高壓(ya)(ya)(ya)(ya)區(qu)(qu)(qu)流(liu)向(xiang)低(di)壓(ya)(ya)(ya)(ya)區(qu)(qu)(qu),經過(guo)(guo)毛細(xi)管放射到蒸發(fa)(fa)(fa)器中(zhong)(zhong),壓(ya)(ya)(ya)(ya)力(li)驟降,液態制(zhi)冷劑立刻(ke)變(bian)成氣態,經過(guo)(guo)散熱片吸收空(kong)(kong)氣中(zhong)(zhong)大量的(de)熱量。這樣(yang)循環應用就(jiu)完成了(le)(le)(le)制(zhi)冷系(xi)統。壓(ya)(ya)(ya)(ya)縮(suo)機通(tong)過(guo)(guo)節流(liu)裝置(zhi)節流(liu)之后,通(tong)入到蒸發(fa)(fa)(fa)器中(zhong)(zhong),將(jiang)所需要冷卻(que)的(de)媒(mei)介(jie)冷卻(que)換(huan)(huan)(huan)熱。例如將(jiang)蒸發(fa)(fa)(fa)器連接到樓里(li)的(de)各個房(fang)間,蒸發(fa)(fa)(fa)器內的(de)蛇行管將(jiang)同空(kong)(kong)氣進行換(huan)(huan)(huan)熱,再(zai)(zai)(zai)通(tong)過(guo)(guo)鼓風(feng)將(jiang)冷氣吹(chui)向(xiang)房(fang)間的(de)空(kong)(kong)氣當中(zhong)(zhong)。而蒸發(fa)(fa)(fa)器蛇行管內的(de)冷凍劑換(huan)(huan)(huan)熱后變(bian)成低(di)壓(ya)(ya)(ya)(ya)蒸氣回(hui)(hui)到壓(ya)(ya)(ya)(ya)縮(suo)機,再(zai)(zai)(zai)被(bei)壓(ya)(ya)(ya)(ya)縮(suo)機壓(ya)(ya)(ya)(ya)縮(suo),這樣(yang)循環利用就(jiu)完成了(le)(le)(le)制(zhi)冷系(xi)統。
防火閥的外觀,防火閥應外觀完好無損,機械部分外表無銹蝕、變形或機械損傷。在其明顯部位設置永久性標牌,標明產品名稱、型號、規格、耐火性能及商標、生產單位(制造商)名稱和廠址、出日期及產品生產批號、執行標準等,內容清晰,設置牢靠。防火閥的安裝位置防火閥主要安裝在風管靠近防火分隔處,暗裝時,鍍鋅通風管安裝部位應設置方便維護的檢修口。具體檢查要求為:(1)通風、空調系統的風管,在以下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、空調系統均獨立設置時,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,鍍鋅通風管批發應采(cai)取防止回流措施,并宜(yi)在支(zhi)管(guan)上(shang)設(she)置防火(huo)閥。(3)公共建筑內廚房的排(pai)油煙管(guan)道,宜(yi)按防火(huo)分(fen)區設(she)置,且在與豎向排(pai)風管(guan)連接的支(zhi)管(guan)處應設(she)置防火(huo)閥。
防(fang)(fang)火(huo)(huo)閥(fa)(fa):采(cai)用70℃溫(wen)(wen)度(du)熔斷器自動關閉(防(fang)(fang)火(huo)(huo)).可輸出聯動訊(xun)號(hao),用于通風空調系(xi)統風管(guan)(guan)內,防(fang)(fang)止火(huo)(huo)勢沿風管(guan)(guan)蔓延。排(pai)煙(yan)防(fang)(fang)火(huo)(huo)閥(fa)(fa):電(dian)訊(xun)號(hao)開啟,手動開啟,輸出動作電(dian)訊(xun)號(hao).用于排(pai)煙(yan)風機吸入(ru)口(kou)管(guan)(guan)道(dao)或排(pai)煙(yan)支(zhi)管(guan)(guan)上。采(cai)用280℃溫(wen)(wen)度(du)熔斷器重新關閉。防(fang)(fang)火(huo)(huo)閥(fa)(fa)——通風空調系(xi)統70℃:風管(guan)(guan)穿越防(fang)(fang)火(huo)(huo)分區、隔墻樓板、水平風管(guan)(guan)的水平管(guan)(guan)段(duan)上(系(xi)統獨立設置可不設)、公(gong)共建(jian)筑(zhu)豎向排(pai)風管(guan)(guan)支(zhi)管(guan)(guan);150℃:公(gong)共建(jian)筑(zhu)廚房排(pai)油(you)煙(yan)管(guan)(guan)支(zhi)管(guan)(guan);排(pai)煙(yan)防(fang)(fang)火(huo)(huo)閥(fa)(fa)——消防(fang)(fang)排(pai)煙(yan)系(xi)統280℃:消防(fang)(fang)排(pai)煙(yan)管(guan)(guan)道(dao);
1安(an)裝好(hao)(hao)(hao)采用(yong)(yong)水平聯通(tong)(tong)的(de)方式(shi)。操作簡(jian)單,使(shi)用(yong)(yong)安(an)全(quan)范(fan)(fan)圍(wei)廣(guang)。有人說(shuo),我(wo)方式(shi)也養好(hao)(hao)(hao)雞(ji),我(wo)只能說(shuo)沒有養不(bu)(bu)(bu)好(hao)(hao)(hao)雞(ji)的(de)雞(ji)舍,只有養不(bu)(bu)(bu)好(hao)(hao)(hao)雞(ji)的(de)人。合理設計本身(shen)是為了減小勞動(dong)量(liang)(liang)(liang)的(de)!2開(kai)(kai)口(kou)(kou)大小與數(shu)量(liang)(liang)(liang)。建議(yi)等于風(feng)(feng)(feng)管(guan)(guan)(guan)橫截面積(ji),按照管(guan)(guan)(guan)子(zi)內徑實際有效面積(ji)計算。開(kai)(kai)口(kou)(kou)大小不(bu)(bu)(bu)敢妄(wang)言,開(kai)(kai)口(kou)(kou)越(yue)(yue)小,所需開(kai)(kai)口(kou)(kou)數(shu)量(liang)(liang)(liang)越(yue)(yue)多,出(chu)風(feng)(feng)(feng)越(yue)(yue)細越(yue)(yue)散越(yue)(yue)均勻,但沖勁不(bu)(bu)(bu)足(zu),降(jiang)低負壓減緩風(feng)(feng)(feng)速相(xiang)對更(geng)安(an)全(quan)。開(kai)(kai)口(kou)(kou)越(yue)(yue)大,進(jin)風(feng)(feng)(feng)越(yue)(yue)厚,沖勁越(yue)(yue)足(zu),相(xiang)對可以提高負壓工作,同(tong)樣配(pei)置風(feng)(feng)(feng)管(guan)(guan)(guan)數(shu)量(liang)(liang)(liang),安(an)全(quan)范(fan)(fan)圍(wei)內滿足(zu)更(geng)多進(jin)風(feng)(feng)(feng)量(liang)(liang)(liang)。(主(zhu)要是冷風(feng)(feng)(feng)緩沖范(fan)(fan)圍(wei)廣(guang)了)3配(pei)置方式(shi)。根據(ju)不(bu)(bu)(bu)同(tong)雞(ji)舍養殖(zhi)數(shu)量(liang)(liang)(liang)、大小等兩種配(pei)置方式(shi)。一是根據(ju)冬季大的(de)小通(tong)(tong)風(feng)(feng)(feng)量(liang)(liang)(liang),配(pei)置足(zu)夠風(feng)(feng)(feng)管(guan)(guan)(guan)數(shu)量(liang)(liang)(liang),在冬季養殖(zhi)過程中完全(quan)不(bu)(bu)(bu)開(kai)(kai)啟(qi)通(tong)(tong)風(feng)(feng)(feng)窗(chuang),只用(yong)(yong)風(feng)(feng)(feng)管(guan)(guan)(guan)通(tong)(tong)風(feng)(feng)(feng)。二(er)是根據(ju)風(feng)(feng)(feng)機大小配(pei)比通(tong)(tong)風(feng)(feng)(feng)管(guan)(guan)(guan),但不(bu)(bu)(bu)建議(yi)大雞(ji)舍滿足(zu)小風(feng)(feng)(feng)機的(de)配(pei)比,此(ci)時(shi)(shi)小通(tong)(tong)風(feng)(feng)(feng)在風(feng)(feng)(feng)管(guan)(guan)(guan)不(bu)(bu)(bu)夠用(yong)(yong)時(shi)(shi),開(kai)(kai)啟(qi)通(tong)(tong)風(feng)(feng)(feng)窗(chuang),過渡(du)時(shi)(shi)機、操作方式(shi)不(bu)(bu)(bu)好(hao)(hao)(hao)掌握(wo),難度高,容易(yi)出(chu)問題。如果配(pei)置風(feng)(feng)(feng)管(guan)(guan)(guan)足(zu)夠,外(wai)界溫度持續升高,用(yong)(yong)到溫控降(jiang)溫模式(shi)下,開(kai)(kai)啟(qi)側窗(chuang)通(tong)(tong)風(feng)(feng)(feng),相(xiang)對時(shi)(shi)機更(geng)好(hao)(hao)(hao),更(geng)安(an)全(quan)。