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防火閥:采用70℃溫度熔斷器自動關閉(防火).可輸出聯動訊號,用于通風空調系統風管內,推薦鍍鋅通風管防止火勢沿風管蔓延。排煙防火閥:電訊號開啟,手動開啟,輸出動作電訊號.用于排煙風機吸入口管道或排煙支管上。鍍鋅通風管采用280℃溫度熔(rong)斷器重新關(guan)閉(bi)。防(fang)(fang)(fang)火(huo)閥(fa)——通(tong)風空(kong)調(diao)系統(tong)70℃:風管(guan)(guan)(guan)穿越(yue)防(fang)(fang)(fang)火(huo)分區(qu)、隔墻樓板、水(shui)平風管(guan)(guan)(guan)的水(shui)平管(guan)(guan)(guan)段上(系統(tong)獨立設置(zhi)可不設)、公共建筑(zhu)豎向排(pai)(pai)風管(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan);150℃:公共建筑(zhu)廚房排(pai)(pai)油煙(yan)管(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan);排(pai)(pai)煙(yan)防(fang)(fang)(fang)火(huo)閥(fa)——消(xiao)防(fang)(fang)(fang)排(pai)(pai)煙(yan)系統(tong)280℃:消(xiao)防(fang)(fang)(fang)排(pai)(pai)煙(yan)管(guan)(guan)(guan)道;
現(xian)(xian)階(jie)(jie)段是(shi)很多雞(ji)舍(she)都配備了(le)(le)通(tong)風(feng)管(guan),我(wo)是(shi)2013年開(kai)(kai)始用的通(tong)風(feng)管(guan),在(zai)使(shi)(shi)用過程中,曾經出現(xian)(xian)過很多問題,現(xian)(xian)總結一(yi)下,歡迎拍磚(zhuan)交流(liu)。一(yi),通(tong)風(feng)管(guan)的作(zuo)用。1降(jiang)低操作(zuo)負(fu)(fu)壓。冬(dong)季(ji)沒安裝通(tong)風(feng)管(guan)的雞(ji)舍(she),使(shi)(shi)用小窗(chuang)通(tong)風(feng),尤其是(shi)跨度(du)大的雞(ji)舍(she)為(wei)了(le)(le)導(dao)風(feng)合(he)(he)理(li)安全(quan),使(shi)(shi)用高負(fu)(fu)壓通(tong)風(feng)。而(er)使(shi)(shi)用通(tong)風(feng)管(guan)道(dao),由(you)于進風(feng)在(zai)管(guan)道(dao)內基本不擴散(san),低負(fu)(fu)壓下都是(shi)按照風(feng)管(guan)方向,依(yi)次從(cong)開(kai)(kai)口處出風(feng)。2位置(zhi)高,出風(feng)均勻。進風(feng)雖然在(zai)管(guan)道(dao)內沒有預熱(re),但下落位置(zhi)高,向下擴散(san)時(shi)間就是(shi)預熱(re)過程。3跟風(feng)機配合(he)(he)合(he)(he)理(li)配置(zhi),在(zai)初始開(kai)(kai)啟(qi)風(feng)機階(jie)(jie)段,由(you)于設計問題導(dao)致進風(feng)窗(chuang)使(shi)(shi)用不安全(quan),可以利用通(tong)風(feng)管(guan)過渡(du)。
防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)的(de)(de)外(wai)觀,防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)應外(wai)觀完好無損,機械部(bu)分外(wai)表無銹蝕(shi)、變形或機械損傷。在(zai)其(qi)明顯(xian)部(bu)位設(she)(she)置(zhi)永久性(xing)標(biao)(biao)牌,標(biao)(biao)明產(chan)品(pin)名(ming)稱(cheng)(cheng)、型號、規格、耐火(huo)(huo)(huo)(huo)性(xing)能及(ji)商(shang)標(biao)(biao)、生(sheng)產(chan)單位(制造(zao)商(shang))名(ming)稱(cheng)(cheng)和(he)(he)廠(chang)址、出日(ri)期及(ji)產(chan)品(pin)生(sheng)產(chan)批號、執行(xing)標(biao)(biao)準等,內(nei)容清晰,設(she)(she)置(zhi)牢靠。防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)的(de)(de)安(an)裝位置(zhi)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)主(zhu)要(yao)安(an)裝在(zai)風(feng)(feng)管靠近防(fang)火(huo)(huo)(huo)(huo)分隔(ge)(ge)處(chu)(chu),暗裝時,安(an)裝部(bu)位應設(she)(she)置(zhi)方(fang)便維護的(de)(de)檢修口(kou)。具體檢查要(yao)求為:(1)通(tong)(tong)風(feng)(feng)、空(kong)調(diao)系統的(de)(de)風(feng)(feng)管,在(zai)以(yi)下部(bu)位應設(she)(she)置(zhi)公稱(cheng)(cheng)動作溫度為70℃的(de)(de)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa):①穿(chuan)越防(fang)火(huo)(huo)(huo)(huo)分區(qu)處(chu)(chu);②穿(chuan)越通(tong)(tong)風(feng)(feng)、空(kong)調(diao)機房的(de)(de)房間(jian)隔(ge)(ge)墻和(he)(he)樓板處(chu)(chu);③穿(chuan)越重(zhong)要(yao)或火(huo)(huo)(huo)(huo)災危險(xian)性(xing)大(da)的(de)(de)房間(jian)隔(ge)(ge)墻和(he)(he)樓板處(chu)(chu);④穿(chuan)越防(fang)火(huo)(huo)(huo)(huo)分隔(ge)(ge)處(chu)(chu)的(de)(de)變形縫兩側;⑤豎向(xiang)風(feng)(feng)管與每(mei)層水平風(feng)(feng)管交接處(chu)(chu)的(de)(de)水平管段上。當建(jian)筑(zhu)內(nei)每(mei)個防(fang)火(huo)(huo)(huo)(huo)分區(qu)的(de)(de)通(tong)(tong)風(feng)(feng)、空(kong)調(diao)系統均獨立設(she)(she)置(zhi)時,水平風(feng)(feng)管與豎向(xiang)總管的(de)(de)交接處(chu)(chu)可不設(she)(she)置(zhi)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)。(2)公共建(jian)筑(zhu)的(de)(de)浴室、衛生(sheng)間(jian)和(he)(he)廚房的(de)(de)豎向(xiang)排(pai)風(feng)(feng)管,應采取(qu)防(fang)止回(hui)流措施,并(bing)宜在(zai)支管上設(she)(she)置(zhi)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)。(3)公共建(jian)筑(zhu)內(nei)廚房的(de)(de)排(pai)油煙管道,宜按(an)防(fang)火(huo)(huo)(huo)(huo)分區(qu)設(she)(she)置(zhi),且在(zai)與豎向(xiang)排(pai)風(feng)(feng)管連接的(de)(de)支管處(chu)(chu)應設(she)(she)置(zhi)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)。
在(zai)了解空(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)的(de)(de)工作原理之前,先(xian)來(lai)認(ren)識(shi)下空(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)的(de)(de)工作回(hui)路。空(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)的(de)(de)工作回(hui)路分為蒸(zheng)(zheng)(zheng)發(fa)區(qu)(qu)和冷(leng)(leng)凝(ning)區(qu)(qu),空(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)在(zai)空(kong)(kong)調(diao)(diao)制冷(leng)(leng)劑回(hui)路中(zhong)起壓(ya)(ya)(ya)(ya)縮(suo)(suo)驅動制冷(leng)(leng)劑的(de)(de)作用(yong)。空(kong)(kong)調(diao)(diao)制冷(leng)(leng)時,中(zhong)央空(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)把制冷(leng)(leng)劑從低壓(ya)(ya)(ya)(ya)區(qu)(qu)抽(chou)取(qu)來(lai)經(jing)緊縮(suo)(suo)后(hou)送到(dao)高(gao)壓(ya)(ya)(ya)(ya)區(qu)(qu)冷(leng)(leng)卻凝(ning)結,經(jing)過(guo)(guo)散熱片分發(fa)出熱量(liang)到(dao)空(kong)(kong)氣中(zhong),制冷(leng)(leng)劑也從氣態(tai)變成(cheng)(cheng)(cheng)液(ye)態(tai),壓(ya)(ya)(ya)(ya)力升高(gao)。制冷(leng)(leng)劑再(zai)從高(gao)壓(ya)(ya)(ya)(ya)區(qu)(qu)流向(xiang)低壓(ya)(ya)(ya)(ya)區(qu)(qu),經(jing)過(guo)(guo)毛細管放射到(dao)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)中(zhong),壓(ya)(ya)(ya)(ya)力驟降,液(ye)態(tai)制冷(leng)(leng)劑立刻變成(cheng)(cheng)(cheng)氣態(tai),經(jing)過(guo)(guo)散熱片吸收空(kong)(kong)氣中(zhong)大量(liang)的(de)(de)熱量(liang)。這樣循(xun)環應用(yong)就完(wan)成(cheng)(cheng)(cheng)了制冷(leng)(leng)系統。壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)通(tong)(tong)過(guo)(guo)節流裝置節流之后(hou),通(tong)(tong)入到(dao)蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)中(zhong),將所需(xu)要冷(leng)(leng)卻的(de)(de)媒介(jie)冷(leng)(leng)卻換熱。例如將蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)連接(jie)到(dao)樓(lou)里的(de)(de)各個(ge)房間,蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)內(nei)的(de)(de)蛇(she)(she)行管將同空(kong)(kong)氣進行換熱,再(zai)通(tong)(tong)過(guo)(guo)鼓風將冷(leng)(leng)氣吹向(xiang)房間的(de)(de)空(kong)(kong)氣當中(zhong)。而蒸(zheng)(zheng)(zheng)發(fa)器(qi)(qi)蛇(she)(she)行管內(nei)的(de)(de)冷(leng)(leng)凍劑換熱后(hou)變成(cheng)(cheng)(cheng)低壓(ya)(ya)(ya)(ya)蒸(zheng)(zheng)(zheng)氣回(hui)到(dao)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji),再(zai)被(bei)壓(ya)(ya)(ya)(ya)縮(suo)(suo)機(ji)(ji)(ji)壓(ya)(ya)(ya)(ya)縮(suo)(suo),這樣循(xun)環利用(yong)就完(wan)成(cheng)(cheng)(cheng)了制冷(leng)(leng)系統。
鑒于軸(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)有紊(wen)流(liu)區(qu)(qu)的(de)(de)性能特(te)點(dian)(dian),在(zai)(zai)選型和使(shi)用(yong)時(shi),需要(yao)(yao)注(zhu)意以下(xia)兩點(dian)(dian):建議使(shi)用(yong)在(zai)(zai)空曠(kuang)環(huan)(huan)境(jing)中,軸(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的(de)(de)輸入(ru)功率隨系統靜壓的(de)(de)增大而(er)增大,而(er)在(zai)(zai)紊(wen)流(liu)區(qu)(qu),輸入(ru)功率的(de)(de)增大幅(fu)度會(hui)更(geng)(geng)大。因此(ci),軸(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)一(yi)般多應用(yong)在(zai)(zai)有較大空曠(kuang)環(huan)(huan)境(jing)的(de)(de)場合(he)下(xia),可以使(shi)其工作在(zai)(zai)靜壓較低的(de)(de)環(huan)(huan)境(jing)下(xia),降低功耗(hao),保(bao)證(zheng)穩(wen)定(ding)性和壽命。定(ding)期清理風(feng)(feng)(feng)(feng)(feng)道(dao),當軸(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)應用(yong)在(zai)(zai)較為封閉的(de)(de)風(feng)(feng)(feng)(feng)(feng)道(dao)系統中時(shi),長(chang)期運(yun)行(xing)后風(feng)(feng)(feng)(feng)(feng)道(dao)中的(de)(de)積灰、垃圾逐漸(jian)變多,會(hui)使(shi)風(feng)(feng)(feng)(feng)(feng)道(dao)內的(de)(de)靜壓逐漸(jian)增加(jia)(jia),使(shi)得風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的(de)(de)運(yun)行(xing)工況(kuang)點(dian)(dian)逐漸(jian)左移。這不僅(jin)會(hui)降低風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)性能,更(geng)(geng)重要(yao)(yao)的(de)(de)是會(hui)增加(jia)(jia)軸(zhou)(zhou)流(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)進入(ru)紊(wen)流(liu)區(qu)(qu)的(de)(de)風(feng)(feng)(feng)(feng)(feng)險。因此(ci)必須要(yao)(yao)定(ding)期清理風(feng)(feng)(feng)(feng)(feng)道(dao),保(bao)證(zheng)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)工況(kuang)點(dian)(dian)不產(chan)生(sheng)較大偏移。