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在(zai)空調送風(feng)系(xi)統(tong)中(zhong),空調送風(feng)機送出(chu)的風(feng)必(bi)(bi)須(xu)通(tong)過(guo)主干管(guan)分(fen)配到(dao)支管(guan)中(zhong);在(zai)排(pai)(pai)煙(yan)(yan)系(xi)統(tong)中(zhong),煙(yan)(yan)氣(qi)由支管(guan)到(dao)主干管(guan)后,進入排(pai)(pai)煙(yan)(yan)風(feng)機排(pai)(pai)出(chu)。當(dang)(dang)建(jian)筑物內(nei)發生(sheng)火(huo)(huo)(huo)(huo)災時,在(zai)通(tong)風(feng)、空調系(xi)統(tong)中(zhong),為(wei)了(le)防(fang)(fang)(fang)止火(huo)(huo)(huo)(huo)勢通(tong)過(guo)送風(feng)系(xi)統(tong)蔓(man)延,當(dang)(dang)送風(feng)系(xi)統(tong)中(zhong)氣(qi)體(ti)溫(wen)(wen)度達到(dao)70℃時,防(fang)(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)機構上熔斷(duan)器(qi)動作,閥(fa)門亦(yi)迅速關(guan)閥(fa),切(qie)斷(duan)煙(yan)(yan)氣(qi)與火(huo)(huo)(huo)(huo)勢沿風(feng)管(guan)蔓(man)延的通(tong)路(lu)。同(tong)樣,在(zai)排(pai)(pai)煙(yan)(yan)系(xi)統(tong)中(zhong),發生(sheng)火(huo)(huo)(huo)(huo)災時,排(pai)(pai)煙(yan)(yan)閥(fa)開(kai)啟,進行排(pai)(pai)煙(yan)(yan),為(wei)了(le)截斷(duan)高溫(wen)(wen)煙(yan)(yan)氣(qi)在(zai)排(pai)(pai)煙(yan)(yan)管(guan)路(lu)中(zhong)流(liu)動,防(fang)(fang)(fang)止火(huo)(huo)(huo)(huo)勢蔓(man)延到(dao)另一防(fang)(fang)(fang)火(huo)(huo)(huo)(huo)分(fen)區,當(dang)(dang)排(pai)(pai)出(chu)的煙(yan)(yan)氣(qi)溫(wen)(wen)度達到(dao)280℃時,排(pai)(pai)煙(yan)(yan)防(fang)(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)、排(pai)(pai)煙(yan)(yan)口上熔斷(duan)器(qi)動作,閥(fa)門必(bi)(bi)須(xu)自動關(guan)閉(bi),阻止排(pai)(pai)煙(yan)(yan)。由此可(ke)見,防(fang)(fang)(fang)火(huo)(huo)(huo)(huo)閥(fa)、排(pai)(pai)煙(yan)(yan)閥(fa)做到(dao)了(le)該(gai)通(tong)則通(tong),該(gai)斷(duan)則斷(duan)的隔煙(yan)(yan)阻火(huo)(huo)(huo)(huo)作用。
確(que)保(bao)(bao)通風(feng)效(xiao)果:高(gao)(gao)(gao)溫消防(fang)排(pai)煙風(feng)機(ji)的(de)(de)(de)使(shi)用(yong)介質本身(shen)溫度相對(dui)較(jiao)高(gao)(gao)(gao),且(qie)自(zi)身(shen)的(de)(de)(de)運(yun)轉(zhuan)也是(shi)(shi)(shi)會(hui)產(chan)生(sheng)一(yi)定的(de)(de)(de)溫度,若是(shi)(shi)(shi)將(jiang)其放在密封環境(jing)中,那么很容易就會(hui)導(dao)致高(gao)(gao)(gao)溫現象(xiang)發生(sheng),針對(dui)于這(zhe)種情況(kuang)在前(qian)期選擇安(an)裝環境(jing)時就應該(gai)要多(duo)注意(yi)(yi),好是(shi)(shi)(shi)能夠將(jiang)其放在通風(feng)效(xiao)果較(jiao)好的(de)(de)(de)環境(jing)中,通過(guo)對(dui)流運(yun)動來有(you)(you)效(xiao)降低溫度,這(zhe)是(shi)(shi)(shi)可以有(you)(you)效(xiao)的(de)(de)(de)防(fang)止(zhi)高(gao)(gao)(gao)溫現象(xiang)的(de)(de)(de)發生(sheng)。確(que)保(bao)(bao)電(dian)流大(da)小合適:消防(fang)排(pai)煙風(feng)機(ji)的(de)(de)(de)使(shi)用(yong)還是(shi)(shi)(shi)要注意(yi)(yi)電(dian)流問題,是(shi)(shi)(shi)應該(gai)要防(fang)止(zhi)電(dian)流過(guo)大(da)現象(xiang)發生(sheng),否則會(hui)讓在運(yun)行(xing)中會(hui)因為(wei)電(dian)流過(guo)大(da)而產(chan)生(sheng)較(jiao)多(duo)的(de)(de)(de)電(dian)阻,而這(zhe)也是(shi)(shi)(shi)會(hui)導(dao)致高(gao)(gao)(gao)溫現象(xiang)發生(sheng)。因為(wei)高(gao)(gao)(gao)溫會(hui)直接影響著消防(fang)排(pai)煙風(feng)機(ji)的(de)(de)(de)使(shi)用(yong),因此在日常使(shi)用(yong)中就應該(gai)要采取措(cuo)施來有(you)(you)效(xiao)的(de)(de)(de)防(fang)止(zhi)高(gao)(gao)(gao)溫現象(xiang)發生(sheng),且(qie)在高(gao)(gao)(gao)溫之后(hou)要采取措(cuo)施來降溫,以確(que)保(bao)(bao)安(an)全。
消防(fang)(fang)(fang)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)風機(ji)風量(liang)(liang)與送(song)風機(ji)風量(liang)(liang)計(ji)(ji)(ji)(ji)算(suan)(suan)方(fang)法是根據建筑(zhu)面積(ji)(ji)來確(que)定(ding)的(de)(de),每個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)都需要(yao)獨立計(ji)(ji)(ji)(ji)算(suan)(suan)其(qi)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang),當排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)風機(ji)擔(dan)負(fu)一(yi)個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)的(de)(de)時(shi)候(hou)可(ke)按平(ping)方(fang)米面積(ji)(ji)不小(xiao)于60m3/h計(ji)(ji)(ji)(ji)算(suan)(suan),擔(dan)負(fu)多(duo)個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)則按平(ping)方(fang)米面積(ji)(ji)不小(xiao)于120m3/h計(ji)(ji)(ji)(ji)算(suan)(suan)。送(song)風量(liang)(liang)按排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)的(de)(de)50%計(ji)(ji)(ji)(ji)算(suan)(suan)。每個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)不應(ying)(ying)大于500平(ping)方(fang)。常(chang)見(jian)的(de)(de)消防(fang)(fang)(fang)防(fang)(fang)(fang)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)系(xi)統中(zhong),排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)一(yi)般根據大防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)面積(ji)(ji)500*120等于60000立方(fang)每小(xiao)時(shi)計(ji)(ji)(ji)(ji)算(suan)(suan),在設計(ji)(ji)(ji)(ji)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)的(de)(de)時(shi)候(hou)要(yao)注意漏風量(liang)(liang),一(yi)般可(ke)按小(xiao)漏風量(liang)(liang)10%計(ji)(ji)(ji)(ji)算(suan)(suan)。例如:當建筑(zhu)面積(ji)(ji)為(wei)(wei)(wei)1000平(ping)方(fang)時(shi),需要(yao)設置兩(liang)個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu),每個(ge)防(fang)(fang)(fang)煙(yan)(yan)(yan)(yan)(yan)分區(qu)(qu)(qu)的(de)(de)大面積(ji)(ji)為(wei)(wei)(wei)500平(ping)方(fang),排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)是500*1203/h=600003/h,再加上小(xiao)漏風量(liang)(liang)10%為(wei)(wei)(wei)60003/h,總排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)應(ying)(ying)為(wei)(wei)(wei)660003/h,其(qi)中(zhong)送(song)風量(liang)(liang)為(wei)(wei)(wei)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)量(liang)(liang)的(de)(de)50%應(ying)(ying)為(wei)(wei)(wei)330003/h。
通風管道安裝程序:(1)風管組裝:當風管較短時,可一次在地面組裝而成,當風管較長時,可視安裝場地的情況,在地面分段組裝。值得信賴的消防通風設備組裝時應盡量調整風道的中心度和水平度,避免風管扭曲或上下起波,左右擺龍,每段風道不宜超過10m.組裝時,墊片應墊平,法蘭螺栓應均勻擰緊,螺母帽均朝向同一方向。(2)風管就位:風管就位前應檢查全部支架的水乎度和標高、檢查支架的牢固程度,風管就位可采用直接和吊具兩種方法。消防通風設備批發對風(feng)(feng)(feng)管(guan)斷面較小(xiao),又位(wei)置較低的(de)(de)可采(cai)用人工就位(wei)方(fang)(fang)法,只需搭(da)設簡易腳(jiao)手架(jia)(jia)即可。當風(feng)(feng)(feng)管(guan)斷面較大(da)且管(guan)段較長(chang)時,可采(cai)用滑輪、倒鏈、大(da)繩等方(fang)(fang)法吊(diao)(diao)裝(zhuang)。世(shi)紀(ji)星介(jie)紹為(wei)了便于風(feng)(feng)(feng)道就位(wei),一般(ban)多采(cai)用將風(feng)(feng)(feng)道吊(diao)(diao)在(zai)腳(jiao)手架(jia)(jia)上,然后再將其抬(tai)放在(zai)風(feng)(feng)(feng)道支架(jia)(jia)上的(de)(de)方(fang)(fang)法。腳(jiao)手架(jia)(jia)應(ying)沿(yan)其風(feng)(feng)(feng)道長(chang)度方(fang)(fang)向(xiang)搭(da)設,高(gao)度和位(wei)置應(ying)適合施工操作(zuo),吊(diao)(diao)裝(zhuang)順序應(ying)先干管(guan)后支、立管(guan),吊(diao)(diao)起時,吊(diao)(diao)點應(ying)牢固,兩吊(diao)(diao)點應(ying)均勻受力。垂(chui)直(zhi)風(feng)(feng)(feng)管(guan)可采(cai)用人工和大(da)繩輔助就位(wei)。調整(zheng)風(feng)(feng)(feng)管(guan)保證垂(chui)直(zhi)度要(yao)求(qiu)。(3)風(feng)(feng)(feng)道調直(zhi):就位(wei)在(zai)支架(jia)(jia)上的(de)(de)風(feng)(feng)(feng)道,應(ying)撥正位(wei)置,調整(zheng)風(feng)(feng)(feng)道橫平豎直(zhi),然后再按圖集要(yao)求(qiu)固定。
消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)機(ji)(ji)(ji)(ji)(ji)(ji)一般(ban)是采用離(li)心式(shi)(shi)(shi)(shi)(shi)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)和軸流(liu)(liu)式(shi)(shi)(shi)(shi)(shi)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)兩(liang)種(zhong)(zhong)重要(yao)的(de)(de)(de)型式(shi)(shi)(shi)(shi)(shi)。從(cong)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)風(feng)(feng)(feng)(feng)(feng)量、風(feng)(feng)(feng)(feng)(feng)壓考(kao)慮來(lai)看,消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)是高比(bi)轉高效率(lv)的(de)(de)(de)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji),更加(jia)的(de)(de)(de)適合選用軸流(liu)(liu)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)。軸流(liu)(liu)式(shi)(shi)(shi)(shi)(shi)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)有兩(liang)種(zhong)(zhong)設計型式(shi)(shi)(shi)(shi)(shi),一種(zhong)(zhong)為(wei)(wei)(wei)電機(ji)(ji)(ji)(ji)(ji)(ji)與(yu)主(zhu)氣(qi)(qi)(qi)流(liu)(liu)分(fen)離(li)型式(shi)(shi)(shi)(shi)(shi),另一種(zhong)(zhong)為(wei)(wei)(wei)電機(ji)(ji)(ji)(ji)(ji)(ji)置于(yu)主(zhu)氣(qi)(qi)(qi)流(liu)(liu)之(zhi)中(zhong)。根據煙(yan)(yan)(yan)氣(qi)(qi)(qi)溫(wen)度的(de)(de)(de)不(bu)(bu)同(tong),采用不(bu)(bu)同(tong)型式(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji),溫(wen)度大于(yu)400℃時(shi),采用電機(ji)(ji)(ji)(ji)(ji)(ji)與(yu)主(zhu)氣(qi)(qi)(qi)流(liu)(liu)分(fen)離(li)型式(shi)(shi)(shi)(shi)(shi),溫(wen)度小于(yu)400℃大于(yu)150℃,兩(liang)種(zhong)(zhong)型式(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)電機(ji)(ji)(ji)(ji)(ji)(ji)都可(ke)以(yi)選擇,在溫(wen)度小于(yu)150℃的(de)(de)(de)時(shi)候,采用電機(ji)(ji)(ji)(ji)(ji)(ji)置于(yu)主(zhu)氣(qi)(qi)(qi)流(liu)(liu)之(zhi)中(zhong)。 軸流(liu)(liu)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)(de)流(liu)(liu)量范(fan)圍從(cong)7200m?/h至110000m?/h,有不(bu)(bu)同(tong)型號的(de)(de)(de)編(bian)制,用來(lai)滿足不(bu)(bu)同(tong)通(tong)風(feng)(feng)(feng)(feng)(feng)排(pai)(pai)煙(yan)(yan)(yan)流(liu)(liu)量的(de)(de)(de)需求。消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)可(ke)以(yi)根據壓力(li)(li)情況的(de)(de)(de)不(bu)(bu)同(tong)分(fen)為(wei)(wei)(wei)兩(liang)種(zhong)(zhong)類(lei)型,一類(lei)為(wei)(wei)(wei)軸流(liu)(liu)式(shi)(shi)(shi)(shi)(shi)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)機(ji)(ji)(ji)(ji)(ji)(ji),其(qi)各(ge)機(ji)(ji)(ji)(ji)(ji)(ji)號的(de)(de)(de)壓力(li)(li)在600Pa左(zuo)右(you),另一類(lei)為(wei)(wei)(wei)斜流(liu)(liu)消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji),各(ge)機(ji)(ji)(ji)(ji)(ji)(ji)號的(de)(de)(de)壓力(li)(li)在1000Pa左(zuo)右(you)。為(wei)(wei)(wei)了滿足排(pai)(pai)煙(yan)(yan)(yan)量和通(tong)風(feng)(feng)(feng)(feng)(feng)換氣(qi)(qi)(qi)的(de)(de)(de)要(yao)求,消(xiao)(xiao)(xiao)(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)一般(ban)都設計了雙速型的(de)(de)(de)結構模(mo)式(shi)(shi)(shi)(shi)(shi)。低(di)速可(ke)以(yi)通(tong)風(feng)(feng)(feng)(feng)(feng)使用,高速可(ke)以(yi)排(pai)(pai)放煙(yan)(yan)(yan)霧,這樣不(bu)(bu)但可(ke)以(yi)節約能源同(tong)時(shi)又降低(di)了噪(zao)聲污染。
現(xian)階段是(shi)很(hen)多雞舍都配(pei)備了通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan),我是(shi)2013年開(kai)始(shi)用(yong)(yong)的(de)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan),在(zai)使用(yong)(yong)過(guo)程中,曾經(jing)出現(xian)過(guo)很(hen)多問題(ti)(ti),現(xian)總結(jie)一下(xia),歡(huan)迎(ying)拍磚交流。一,通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)的(de)作用(yong)(yong)。1降低操作負壓。冬季沒安裝通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)的(de)雞舍,使用(yong)(yong)小(xiao)窗通(tong)(tong)風(feng)(feng)(feng)(feng),尤其是(shi)跨度(du)大的(de)雞舍為了導風(feng)(feng)(feng)(feng)合(he)理安全,使用(yong)(yong)高(gao)負壓通(tong)(tong)風(feng)(feng)(feng)(feng)。而使用(yong)(yong)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)道(dao),由(you)于進風(feng)(feng)(feng)(feng)在(zai)管(guan)(guan)道(dao)內基本不(bu)擴(kuo)散(san),低負壓下(xia)都是(shi)按照風(feng)(feng)(feng)(feng)管(guan)(guan)方向(xiang),依(yi)次從開(kai)口處(chu)出風(feng)(feng)(feng)(feng)。2位(wei)置(zhi)高(gao),出風(feng)(feng)(feng)(feng)均勻。進風(feng)(feng)(feng)(feng)雖然在(zai)管(guan)(guan)道(dao)內沒有預熱(re),但下(xia)落位(wei)置(zhi)高(gao),向(xiang)下(xia)擴(kuo)散(san)時間(jian)就是(shi)預熱(re)過(guo)程。3跟風(feng)(feng)(feng)(feng)機(ji)配(pei)合(he)合(he)理配(pei)置(zhi),在(zai)初(chu)始(shi)開(kai)啟風(feng)(feng)(feng)(feng)機(ji)階段,由(you)于設計問題(ti)(ti)導致進風(feng)(feng)(feng)(feng)窗使用(yong)(yong)不(bu)安全,可以利用(yong)(yong)通(tong)(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)過(guo)渡。