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1,通風風管安裝在支架上,應設托座。2,通風風管如有穿出屋面外部分,應設置防雨罩。3,通風風管采用無法蘭連時,接口處應嚴密牢固。通風風管連接兩平面應平直,不得錯位及扭曲。4,輸送易產生冷凝水的通風風管,安裝應設計坡度。通風風管底部不能有縱向的接縫, 如消防通風設備必須有接縫,則應采用密封方式。通風管道安裝完畢后,應進行嚴密性試驗,如消防通風設備批發發現異常情況,通風(feng)管(guan)(guan)道的(de)制作、安(an)裝(zhuang)、檢驗和(he)試驗,是一個連貫的(de)工程(cheng),做到安(an)全適用,經濟(ji)合(he)理,方便施工,確保通風(feng)管(guan)(guan)道的(de)工程(cheng)質量(liang)。
防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)的(de)(de)(de)外(wai)觀,防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)應外(wai)觀完好無損(sun),機械部分外(wai)表(biao)無銹蝕、變(bian)形或(huo)機械損(sun)傷。在(zai)其(qi)明(ming)顯部位設(she)(she)置(zhi)(zhi)(zhi)永久性(xing)(xing)標牌,標明(ming)產(chan)品名(ming)稱(cheng)、型號(hao)、規格、耐火(huo)(huo)(huo)(huo)性(xing)(xing)能及商標、生(sheng)產(chan)單位(制造(zao)商)名(ming)稱(cheng)和(he)廠址、出(chu)日期及產(chan)品生(sheng)產(chan)批(pi)號(hao)、執行標準(zhun)等,內容清晰(xi),設(she)(she)置(zhi)(zhi)(zhi)牢靠。防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)的(de)(de)(de)安裝(zhuang)(zhuang)位置(zhi)(zhi)(zhi)防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)主(zhu)要安裝(zhuang)(zhuang)在(zai)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)靠近防(fang)(fang)火(huo)(huo)(huo)(huo)分隔(ge)(ge)處(chu)(chu),暗(an)裝(zhuang)(zhuang)時,安裝(zhuang)(zhuang)部位應設(she)(she)置(zhi)(zhi)(zhi)方便維護(hu)的(de)(de)(de)檢修(xiu)口(kou)。具體檢查要求為(wei):(1)通風(feng)(feng)(feng)(feng)、空(kong)調(diao)(diao)系統的(de)(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan),在(zai)以下部位應設(she)(she)置(zhi)(zhi)(zhi)公稱(cheng)動(dong)作溫(wen)度為(wei)70℃的(de)(de)(de)防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa):①穿(chuan)越(yue)(yue)防(fang)(fang)火(huo)(huo)(huo)(huo)分區(qu)處(chu)(chu);②穿(chuan)越(yue)(yue)通風(feng)(feng)(feng)(feng)、空(kong)調(diao)(diao)機房(fang)的(de)(de)(de)房(fang)間隔(ge)(ge)墻(qiang)和(he)樓板處(chu)(chu);③穿(chuan)越(yue)(yue)重要或(huo)火(huo)(huo)(huo)(huo)災(zai)危險性(xing)(xing)大的(de)(de)(de)房(fang)間隔(ge)(ge)墻(qiang)和(he)樓板處(chu)(chu);④穿(chuan)越(yue)(yue)防(fang)(fang)火(huo)(huo)(huo)(huo)分隔(ge)(ge)處(chu)(chu)的(de)(de)(de)變(bian)形縫兩側;⑤豎(shu)向(xiang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)與每(mei)層(ceng)水(shui)平風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)交接(jie)處(chu)(chu)的(de)(de)(de)水(shui)平管(guan)(guan)(guan)(guan)段上。當建(jian)筑內每(mei)個防(fang)(fang)火(huo)(huo)(huo)(huo)分區(qu)的(de)(de)(de)通風(feng)(feng)(feng)(feng)、空(kong)調(diao)(diao)系統均獨立設(she)(she)置(zhi)(zhi)(zhi)時,水(shui)平風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)與豎(shu)向(xiang)總管(guan)(guan)(guan)(guan)的(de)(de)(de)交接(jie)處(chu)(chu)可不設(she)(she)置(zhi)(zhi)(zhi)防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)。(2)公共建(jian)筑的(de)(de)(de)浴室(shi)、衛(wei)生(sheng)間和(he)廚房(fang)的(de)(de)(de)豎(shu)向(xiang)排風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan),應采取(qu)防(fang)(fang)止回流(liu)措施(shi),并宜(yi)(yi)在(zai)支管(guan)(guan)(guan)(guan)上設(she)(she)置(zhi)(zhi)(zhi)防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)。(3)公共建(jian)筑內廚房(fang)的(de)(de)(de)排油煙管(guan)(guan)(guan)(guan)道,宜(yi)(yi)按(an)防(fang)(fang)火(huo)(huo)(huo)(huo)分區(qu)設(she)(she)置(zhi)(zhi)(zhi),且在(zai)與豎(shu)向(xiang)排風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)連接(jie)的(de)(de)(de)支管(guan)(guan)(guan)(guan)處(chu)(chu)應設(she)(she)置(zhi)(zhi)(zhi)防(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)。
在了解空(kong)(kong)調(diao)壓(ya)縮(suo)(suo)機(ji)的(de)(de)工作(zuo)(zuo)原理之(zhi)前,先來認識下(xia)空(kong)(kong)調(diao)壓(ya)縮(suo)(suo)機(ji)的(de)(de)工作(zuo)(zuo)回路(lu)。空(kong)(kong)調(diao)壓(ya)縮(suo)(suo)機(ji)的(de)(de)工作(zuo)(zuo)回路(lu)分(fen)為蒸(zheng)(zheng)發(fa)區和冷(leng)(leng)(leng)凝區,空(kong)(kong)調(diao)壓(ya)縮(suo)(suo)機(ji)在空(kong)(kong)調(diao)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)回路(lu)中起壓(ya)縮(suo)(suo)驅動制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)的(de)(de)作(zuo)(zuo)用(yong)。空(kong)(kong)調(diao)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)時,中央空(kong)(kong)調(diao)壓(ya)縮(suo)(suo)機(ji)把(ba)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)從(cong)低(di)壓(ya)區抽取(qu)來經(jing)緊縮(suo)(suo)后送到(dao)高(gao)壓(ya)區冷(leng)(leng)(leng)卻(que)凝結,經(jing)過(guo)(guo)散熱片分(fen)發(fa)出熱量到(dao)空(kong)(kong)氣(qi)中,制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)也(ye)從(cong)氣(qi)態變(bian)成(cheng)液態,壓(ya)力(li)(li)升高(gao)。制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)再(zai)從(cong)高(gao)壓(ya)區流(liu)向低(di)壓(ya)區,經(jing)過(guo)(guo)毛細管放射到(dao)蒸(zheng)(zheng)發(fa)器(qi)(qi)中,壓(ya)力(li)(li)驟降,液態制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)(ji)(ji)(ji)立刻變(bian)成(cheng)氣(qi)態,經(jing)過(guo)(guo)散熱片吸收空(kong)(kong)氣(qi)中大(da)量的(de)(de)熱量。這樣循(xun)(xun)環應用(yong)就完(wan)(wan)成(cheng)了制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)統(tong)。壓(ya)縮(suo)(suo)機(ji)通(tong)過(guo)(guo)節流(liu)裝置節流(liu)之(zhi)后,通(tong)入到(dao)蒸(zheng)(zheng)發(fa)器(qi)(qi)中,將所需要冷(leng)(leng)(leng)卻(que)的(de)(de)媒(mei)介(jie)冷(leng)(leng)(leng)卻(que)換(huan)熱。例(li)如將蒸(zheng)(zheng)發(fa)器(qi)(qi)連(lian)接到(dao)樓里(li)的(de)(de)各個房間(jian),蒸(zheng)(zheng)發(fa)器(qi)(qi)內的(de)(de)蛇行(xing)管將同空(kong)(kong)氣(qi)進行(xing)換(huan)熱,再(zai)通(tong)過(guo)(guo)鼓風將冷(leng)(leng)(leng)氣(qi)吹向房間(jian)的(de)(de)空(kong)(kong)氣(qi)當中。而蒸(zheng)(zheng)發(fa)器(qi)(qi)蛇行(xing)管內的(de)(de)冷(leng)(leng)(leng)凍(dong)劑(ji)(ji)(ji)(ji)換(huan)熱后變(bian)成(cheng)低(di)壓(ya)蒸(zheng)(zheng)氣(qi)回到(dao)壓(ya)縮(suo)(suo)機(ji),再(zai)被(bei)壓(ya)縮(suo)(suo)機(ji)壓(ya)縮(suo)(suo),這樣循(xun)(xun)環利用(yong)就完(wan)(wan)成(cheng)了制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系(xi)統(tong)。
消(xiao)(xiao)防(fang)排(pai)煙(yan)(yan)風(feng)(feng)機廠家產品由多個配件構(gou)(gou)成,比如(ru)說(shuo)葉輪(lun)、機殼(ke)、軸(zhou)(zhou)承、主軸(zhou)(zhou)等(deng)等(deng)構(gou)(gou)成,而(er)(er)(er)不(bu)同(tong)的(de)(de)(de)配件也起(qi)著(zhu)不(bu)同(tong)的(de)(de)(de)作(zuo)用(yong)。首先對于(yu)葉輪(lun)而(er)(er)(er)言(yan),一(yi)般采用(yong)優(you)質鍍鋅板制(zhi)作(zuo)而(er)(er)(er)成的(de)(de)(de)葉片,通(tong)(tong)(tong)過(guo)傾斜(xie)設計,與拉(la)伸成型的(de)(de)(de)前盤一(yi)起(qi)形成了更(geng)合(he)理的(de)(de)(de)流道(dao)(dao)(dao)(dao),從而(er)(er)(er)保證了葉輪(lun)的(de)(de)(de)高效(xiao)(xiao)率。而(er)(er)(er)軸(zhou)(zhou)承是帶鑄(zhu)造座的(de)(de)(de)外(wai)(wai)球面軸(zhou)(zhou)承,可以通(tong)(tong)(tong)過(guo)外(wai)(wai)球面配合(he)調整同(tong)軸(zhou)(zhou)度的(de)(de)(de)誤差。主軸(zhou)(zhou)一(yi)般采用(yong)45#鋼經調制(zhi)處(chu)理后精車(che)而(er)(er)(er)成,保證足夠的(de)(de)(de)光潔(jie)度和尺寸精。另外(wai)(wai)兩層(ceng)板內部(bu)填充(chong)消(xiao)(xiao)聲(sheng)材料,能更(geng)有效(xiao)(xiao)隔熱降噪。消(xiao)(xiao)防(fang)排(pai)煙(yan)(yan)風(feng)(feng)機不(bu)能距離隧(sui)道(dao)(dao)(dao)(dao)的(de)(de)(de)邊壁太近,避免(mian)影響通(tong)(tong)(tong)風(feng)(feng)效(xiao)(xiao)果。通(tong)(tong)(tong)風(feng)(feng)系統從安全(quan)(quan)隧(sui)道(dao)(dao)(dao)(dao)向(xiang)通(tong)(tong)(tong)過(guo)橫(heng)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao)向(xiang)事(shi)故隧(sui)道(dao)(dao)(dao)(dao)方向(xiang)送風(feng)(feng),抑制(zhi)煙(yan)(yan)氣(qi)(qi)進(jin)入(ru)橫(heng)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao)及未發生事(shi)故的(de)(de)(de)隧(sui)道(dao)(dao)(dao)(dao),滿足疏散人員迎著(zhu)新風(feng)(feng)進(jin)入(ru)橫(heng)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao)和安全(quan)(quan)隧(sui)道(dao)(dao)(dao)(dao)內,同(tong)時(shi)保證等(deng)待區(qu)域所(suo)需要(yao)的(de)(de)(de)新鮮(xian)空氣(qi)(qi)。充(chong)分利(li)用(yong)定(ding)點(dian)救(jiu)援(yuan)站處(chu)的(de)(de)(de)斜(xie)井和隧(sui)道(dao)(dao)(dao)(dao)兩端的(de)(de)(de)消(xiao)(xiao)防(fang)排(pai)煙(yan)(yan)風(feng)(feng)機作(zuo)為送入(ru)新風(feng)(feng)和排(pai)煙(yan)(yan)的(de)(de)(de)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao),通(tong)(tong)(tong)風(feng)(feng)必須維持橫(heng)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao)口(kou)處(chu)于(yu)正壓(ya)狀(zhuang)態,防(fang)止煙(yan)(yan)氣(qi)(qi)流向(xiang)通(tong)(tong)(tong)道(dao)(dao)(dao)(dao)內。