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消防排煙機一般是采用離心式風機和軸流式風機兩種重要的型式。從消防排煙風機風量、風壓考慮來看,消防排煙風機是高比轉高效率的風機,更加的適合選用軸流風機。軸流式消防排煙風機有兩種設計型式,一種為電機與主氣流分離型式,另一種為電機置于主氣流之中。云南通風設備根據煙氣溫度的不同,采用不同型式的消防排煙風機,溫度大于400℃時,采用電機與主氣流分離型式,溫度小于400℃大于150℃,兩種型式的電機都可以選擇,在溫度小于150℃的時候,采用電機置于主氣流之中。 軸流消防排煙風機的流量范圍從7200m?/h至110000m?/h,有不同型號的編制,通風設備用(yong)來滿(man)足不(bu)同通(tong)(tong)風排(pai)(pai)煙(yan)流量的需求(qiu)。消防(fang)排(pai)(pai)煙(yan)風機(ji)可(ke)以根據壓(ya)(ya)力情況的不(bu)同分為(wei)(wei)兩(liang)種類型,一類為(wei)(wei)軸流式(shi)消防(fang)排(pai)(pai)煙(yan)機(ji),其各(ge)機(ji)號的壓(ya)(ya)力在600Pa左右,另一類為(wei)(wei)斜(xie)流消防(fang)排(pai)(pai)煙(yan)風機(ji),各(ge)機(ji)號的壓(ya)(ya)力在1000Pa左右。為(wei)(wei)了滿(man)足排(pai)(pai)煙(yan)量和通(tong)(tong)風換(huan)氣的要求(qiu),消防(fang)排(pai)(pai)煙(yan)風機(ji)一般都設計了雙速型的結構模式(shi)。低(di)速可(ke)以通(tong)(tong)風使用(yong),高速可(ke)以排(pai)(pai)放(fang)煙(yan)霧,這樣(yang)不(bu)但(dan)可(ke)以節約能源同時又降低(di)了噪聲(sheng)污染。
一、通風(feng)與空(kong)(kong)調系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)組(zu)成(cheng)與類別(一)通風(feng)系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)組(zu)成(cheng),包括:進氣(qi)處理(li)設(she)(she)(she)備(bei)(bei)(bei),如(ru)空(kong)(kong)氣(qi)過濾設(she)(she)(she)備(bei)(bei)(bei)、熱(re)(re)(re)濕(shi)處理(li)設(she)(she)(she)備(bei)(bei)(bei)和空(kong)(kong)氣(qi)凈化(hua)設(she)(she)(she)備(bei)(bei)(bei)等;送(song)風(feng)機或(huo)(huo)排(pai)風(feng)機;風(feng)道系(xi)(xi)(xi)(xi)(xi)統(tong),如(ru)風(feng)管(guan)、送(song)風(feng)口、排(pai)風(feng)口、排(pai)氣(qi)罩等;排(pai)氣(qi)處理(li)設(she)(she)(she)備(bei)(bei)(bei),如(ru)除塵器、有害(hai)氣(qi)體凈化(hua)設(she)(she)(she)備(bei)(bei)(bei)、風(feng)帽等。2.通風(feng)系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)類別有:(二)空(kong)(kong)調系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)組(zu)成(cheng)——空(kong)(kong)氣(qi)處理(li)設(she)(she)(she)備(bei)(bei)(bei)、熱(re)(re)(re)源和冷(leng)(leng)源、空(kong)(kong)調風(feng)系(xi)(xi)(xi)(xi)(xi)統(tong)、水(shui)系(xi)(xi)(xi)(xi)(xi)統(tong)、控制(zhi)(zhi)(zhi)、調節裝置(zhi)(1)空(kong)(kong)氣(qi)處理(li)設(she)(she)(she)備(bei)(bei)(bei):空(kong)(kong)氣(qi)加(jia)熱(re)(re)(re)或(huo)(huo)冷(leng)(leng)卻設(she)(she)(she)備(bei)(bei)(bei)、空(kong)(kong)氣(qi)加(jia)濕(shi)或(huo)(huo)去(qu)濕(shi)設(she)(she)(she)備(bei)(bei)(bei)和空(kong)(kong)氣(qi)凈化(hua)設(she)(she)(she)備(bei)(bei)(bei)等;其作用(yong)是將送(song)風(feng)空(kong)(kong)氣(qi)處理(li)到一定的(de)(de)狀態(tai)。(2)熱(re)(re)(re)源和冷(leng)(leng)源:常用(yong)的(de)(de)熱(re)(re)(re)源有提供熱(re)(re)(re)水(shui)或(huo)(huo)蒸汽的(de)(de)鍋(guo)爐、電加(jia)熱(re)(re)(re)器等。(3)空(kong)(kong)調風(feng)系(xi)(xi)(xi)(xi)(xi)統(tong):由風(feng)機和風(feng)管(guan)系(xi)(xi)(xi)(xi)(xi)統(tong)組(zu)成(cheng)。(4)水(shui)系(xi)(xi)(xi)(xi)(xi)統(tong):包括將冷(leng)(leng)凍(dong)水(shui)(或(huo)(huo)熱(re)(re)(re)水(shui))從制(zhi)(zhi)(zhi)冷(leng)(leng)系(xi)(xi)(xi)(xi)(xi)統(tong)(或(huo)(huo)熱(re)(re)(re)源)輸(shu)送(song)到空(kong)(kong)氣(qi)處理(li)設(she)(she)(she)備(bei)(bei)(bei)的(de)(de)水(shui)系(xi)(xi)(xi)(xi)(xi)統(tong)和制(zhi)(zhi)(zhi)冷(leng)(leng)設(she)(she)(she)備(bei)(bei)(bei)的(de)(de)冷(leng)(leng)卻水(shui)系(xi)(xi)(xi)(xi)(xi)統(tong),由水(shui)泵(beng)和水(shui)管(guan)系(xi)(xi)(xi)(xi)(xi)統(tong)組(zu)成(cheng)。(5)控制(zhi)(zhi)(zhi)、調節裝置(zhi):裝置(zhi)的(de)(de)作用(yong)是調節空(kong)(kong)調系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)冷(leng)(leng)量、熱(re)(re)(re)量、風(feng)量等,使空(kong)(kong)調系(xi)(xi)(xi)(xi)(xi)統(tong)的(de)(de)工(gong)作適應空(kong)(kong)調工(gong)況的(de)(de)變化(hua),從而將室內空(kong)(kong)氣(qi)狀況控制(zhi)(zhi)(zhi)在要求的(de)(de)范圍內。
一(yi)(yi)、風管(guan)(guan)(guan)(guan)及(ji)部件安裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)有(you)(you)(you)(you)關規(gui)(gui)定(ding)(ding)(ding)1.風管(guan)(guan)(guan)(guan)安裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)強(qiang)制規(gui)(gui)定(ding)(ding)(ding),當(dang)風管(guan)(guan)(guan)(guan)穿過需(xu)要封(feng)(feng)閉的(de)(de)(de)防(fang)(fang)(fang)火、防(fang)(fang)(fang)爆墻體或(huo)(huo)樓板(ban)時,應(ying)(ying)設(she)預埋管(guan)(guan)(guan)(guan)或(huo)(huo)防(fang)(fang)(fang)護(hu)套管(guan)(guan)(guan)(guan)。套管(guan)(guan)(guan)(guan)鋼板(ban)厚(hou)度不(bu)應(ying)(ying)小于1.6mm,風管(guan)(guan)(guan)(guan)與防(fang)(fang)(fang)護(hu)套管(guan)(guan)(guan)(guan)之間應(ying)(ying)用不(bu)燃且對人體無(wu)害的(de)(de)(de)柔性材料封(feng)(feng)堵,風道應(ying)(ying)安裝(zhuang)(zhuang)(zhuang)設(she)防(fang)(fang)(fang)火閥。風管(guan)(guan)(guan)(guan)內(nei)嚴(yan)(yan)禁各(ge)種管(guan)(guan)(guan)(guan)道、電線敷設(she)及(ji)穿越(yue);輸送(song)含有(you)(you)(you)(you)易(yi)燃易(yi)爆氣體或(huo)(huo)安裝(zhuang)(zhuang)(zhuang)在易(yi)燃易(yi)爆環境的(de)(de)(de)風管(guan)(guan)(guan)(guan)系(xi)統,應(ying)(ying)有(you)(you)(you)(you)良好(hao)的(de)(de)(de)接地(di),通過生(sheng)活(huo)區、生(sheng)產房間時必須(xu)嚴(yan)(yan)密,不(bu)得設(she)接口;室(shi)外主管(guan)(guan)(guan)(guan)的(de)(de)(de)固定(ding)(ding)(ding)拉(la)索嚴(yan)(yan)禁拉(la)在避雷針或(huo)(huo)避雷網上。輸送(song)溫度高于80℃的(de)(de)(de)空(kong)氣的(de)(de)(de)風管(guan)(guan)(guan)(guan),應(ying)(ying)按(an)設(she)計(ji)要求采取防(fang)(fang)(fang)護(hu)措(cuo)施(shi)(shi)。2.風管(guan)(guan)(guan)(guan)安裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)一(yi)(yi)般規(gui)(gui)定(ding)(ding)(ding)風管(guan)(guan)(guan)(guan)安裝(zhuang)(zhuang)(zhuang)宜在建筑(zhu)圍護(hu)結(jie)構施(shi)(shi)工完畢(bi)、場所清(qing)理后(hou)進行(xing)。凈化(hua)空(kong)調風管(guan)(guan)(guan)(guan)應(ying)(ying)在安裝(zhuang)(zhuang)(zhuang)部位地(di)面(mian)做好(hao),墻面(mian)抹灰工序完畢(bi),室(shi)內(nei)無(wu)飛(fei)塵或(huo)(huo)有(you)(you)(you)(you)防(fang)(fang)(fang)塵措(cuo)施(shi)(shi)后(hou)進行(xing)。安裝(zhuang)(zhuang)(zhuang)風管(guan)(guan)(guan)(guan)前應(ying)(ying)清(qing)除(chu)管(guan)(guan)(guan)(guan)內(nei)外雜物,并做好(hao)清(qing)潔和(he)保護(hu)工作,風管(guan)(guan)(guan)(guan)安裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)位置、標高和(he)走向等應(ying)(ying)符合(he)設(she)計(ji)要求,現(xian)場風管(guan)(guan)(guan)(guan)接口的(de)(de)(de)配置不(bu)得縮小有(you)(you)(you)(you)效(xiao)截(jie)面(mian)。
1安(an)裝(zhuang)好(hao)采用水平聯通的方(fang)式(shi)(shi)(shi)(shi)。操作(zuo)(zuo)簡單,使用安(an)全范圍(wei)廣。有人(ren)說(shuo),我(wo)方(fang)式(shi)(shi)(shi)(shi)也養(yang)(yang)好(hao)雞(ji)(ji),我(wo)只(zhi)能說(shuo)沒有養(yang)(yang)不(bu)好(hao)雞(ji)(ji)的雞(ji)(ji)舍(she)(she),只(zhi)有養(yang)(yang)不(bu)好(hao)雞(ji)(ji)的人(ren)。合理設計本(ben)身是(shi)(shi)為了減小(xiao)(xiao)勞動量的!2開口(kou)大(da)(da)(da)(da)小(xiao)(xiao)與數(shu)量。建(jian)議等(deng)于(yu)風(feng)管(guan)(guan)橫截面積,按照管(guan)(guan)子內(nei)徑實際(ji)有效面積計算(suan)。開口(kou)大(da)(da)(da)(da)小(xiao)(xiao)不(bu)敢妄言,開口(kou)越(yue)(yue)(yue)小(xiao)(xiao),所(suo)需開口(kou)數(shu)量越(yue)(yue)(yue)多,出(chu)風(feng)越(yue)(yue)(yue)細越(yue)(yue)(yue)散(san)越(yue)(yue)(yue)均勻,但沖勁不(bu)足,降(jiang)低(di)負(fu)壓減緩風(feng)速相對更(geng)安(an)全。開口(kou)越(yue)(yue)(yue)大(da)(da)(da)(da),進風(feng)越(yue)(yue)(yue)厚,沖勁越(yue)(yue)(yue)足,相對可以(yi)提(ti)高負(fu)壓工作(zuo)(zuo),同樣配置(zhi)(zhi)風(feng)管(guan)(guan)數(shu)量,安(an)全范圍(wei)內(nei)滿足更(geng)多進風(feng)量。(主要(yao)是(shi)(shi)冷風(feng)緩沖范圍(wei)廣了)3配置(zhi)(zhi)方(fang)式(shi)(shi)(shi)(shi)。根據(ju)(ju)不(bu)同雞(ji)(ji)舍(she)(she)養(yang)(yang)殖數(shu)量、大(da)(da)(da)(da)小(xiao)(xiao)等(deng)兩種配置(zhi)(zhi)方(fang)式(shi)(shi)(shi)(shi)。一是(shi)(shi)根據(ju)(ju)冬季(ji)(ji)大(da)(da)(da)(da)的小(xiao)(xiao)通風(feng)量,配置(zhi)(zhi)足夠(gou)風(feng)管(guan)(guan)數(shu)量,在冬季(ji)(ji)養(yang)(yang)殖過(guo)程中(zhong)完全不(bu)開啟通風(feng)窗(chuang),只(zhi)用風(feng)管(guan)(guan)通風(feng)。二是(shi)(shi)根據(ju)(ju)風(feng)機(ji)大(da)(da)(da)(da)小(xiao)(xiao)配比通風(feng)管(guan)(guan),但不(bu)建(jian)議大(da)(da)(da)(da)雞(ji)(ji)舍(she)(she)滿足小(xiao)(xiao)風(feng)機(ji)的配比,此時小(xiao)(xiao)通風(feng)在風(feng)管(guan)(guan)不(bu)夠(gou)用時,開啟通風(feng)窗(chuang),過(guo)渡時機(ji)、操作(zuo)(zuo)方(fang)式(shi)(shi)(shi)(shi)不(bu)好(hao)掌(zhang)握,難(nan)度高,容易出(chu)問題。如(ru)果(guo)配置(zhi)(zhi)風(feng)管(guan)(guan)足夠(gou),外界溫度持續升高,用到溫控降(jiang)溫模(mo)式(shi)(shi)(shi)(shi)下,開啟側(ce)窗(chuang)通風(feng),相對時機(ji)更(geng)好(hao),更(geng)安(an)全。
1、適用(yong)于(yu)大小賓館(guan)、酒樓(lou)、飯(fan)(fan)店、飯(fan)(fan)堂等場所的(de)(de)廚房抽排油煙(yan)(yan)和(he)(he)(he)(he)火煙(yan)(yan)和(he)(he)(he)(he)通(tong)(tong)風(feng)系統配套使用(yong)。2、適用(yong)于(yu)辦公大樓(lou)、商場、影劇院、醫(yi)院、工(gong)(gong)廠(chang)企業(ye)車(che)間、地(di)下室(shi)等場所通(tong)(tong)風(feng)排氣(qi)。3、適用(yong)于(yu)所有工(gong)(gong)作場所的(de)(de)空調冷氣(qi)工(gong)(gong)程。4、風(feng)機(ji)輸送的(de)(de)應為不(bu)含(han)粘性物(wu)(wu)質的(de)(de)氣(qi)體,且(qie)氣(qi)體溫度(du)不(bu)大于(yu)80OC,介質所含(han)物(wu)(wu)質量不(bu)大于(yu)150mg/M3。水膜濾清器(qi)和(he)(he)(he)(he)靜(jing)電油煙(yan)(yan)凈化器(qi)經凈化后排放的(de)(de)物(wu)(wu)質含(han)量不(bu)大于(yu)2.0mg/M3。5、風(feng)機(ji)廣泛(fan)用(yong)于(yu)工(gong)(gong)廠(chang)、礦(kuang)井、隧道、冷卻(que)塔、車(che)輛、船舶和(he)(he)(he)(he)建筑物(wu)(wu)的(de)(de)通(tong)(tong)風(feng)、排塵和(he)(he)(he)(he)冷卻(que);6、鍋爐(lu)和(he)(he)(he)(he)工(gong)(gong)業(ye)爐(lu)窯的(de)(de)通(tong)(tong)風(feng)和(he)(he)(he)(he)引風(feng);空氣(qi)調節設備和(he)(he)(he)(he)家(jia)用(yong)電器(qi)設備中的(de)(de)冷卻(que)和(he)(he)(he)(he)通(tong)(tong)風(feng);7、谷物(wu)(wu)的(de)(de)烘干和(he)(he)(he)(he)選送;風(feng)洞風(feng)源和(he)(he)(he)(he)氣(qi)墊(dian)船的(de)(de)充氣(qi)和(he)(he)(he)(he)推進等。
在空調(diao)送風(feng)系(xi)統(tong)中,空調(diao)送風(feng)機送出(chu)的風(feng)必(bi)須通(tong)(tong)過主干管(guan)分配到(dao)(dao)(dao)支管(guan)中;在排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)系(xi)統(tong)中,煙(yan)(yan)(yan)(yan)氣(qi)由支管(guan)到(dao)(dao)(dao)主干管(guan)后,進入排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)風(feng)機排(pai)(pai)(pai)(pai)出(chu)。當(dang)建筑物(wu)內發(fa)生火(huo)災(zai)時(shi),在通(tong)(tong)風(feng)、空調(diao)系(xi)統(tong)中,為了(le)防止火(huo)勢(shi)通(tong)(tong)過送風(feng)系(xi)統(tong)蔓延(yan),當(dang)送風(feng)系(xi)統(tong)中氣(qi)體(ti)溫度(du)達到(dao)(dao)(dao)70℃時(shi),防火(huo)閥(fa)機構上熔斷器動作(zuo),閥(fa)門(men)(men)亦迅速關(guan)閥(fa),切斷煙(yan)(yan)(yan)(yan)氣(qi)與(yu)火(huo)勢(shi)沿風(feng)管(guan)蔓延(yan)的通(tong)(tong)路。同樣,在排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)系(xi)統(tong)中,發(fa)生火(huo)災(zai)時(shi),排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)閥(fa)開(kai)啟(qi),進行(xing)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan),為了(le)截斷高(gao)溫煙(yan)(yan)(yan)(yan)氣(qi)在排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)管(guan)路中流動,防止火(huo)勢(shi)蔓延(yan)到(dao)(dao)(dao)另一防火(huo)分區,當(dang)排(pai)(pai)(pai)(pai)出(chu)的煙(yan)(yan)(yan)(yan)氣(qi)溫度(du)達到(dao)(dao)(dao)280℃時(shi),排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)防火(huo)閥(fa)、排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)口上熔斷器動作(zuo),閥(fa)門(men)(men)必(bi)須自(zi)動關(guan)閉,阻(zu)(zu)止排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)。由此可(ke)見,防火(huo)閥(fa)、排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)(yan)閥(fa)做到(dao)(dao)(dao)了(le)該通(tong)(tong)則(ze)通(tong)(tong),該斷則(ze)斷的隔煙(yan)(yan)(yan)(yan)阻(zu)(zu)火(huo)作(zuo)用。