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地(di)址:重慶(qing)市(shi)江津區雙福新區福星大道937號鑫成(cheng)瑞暖通(tong)廠區
在(zai)空調送(song)(song)風(feng)(feng)系(xi)統(tong)中,空調送(song)(song)風(feng)(feng)機(ji)(ji)送(song)(song)出的風(feng)(feng)必須通(tong)(tong)過主干管(guan)(guan)分配到(dao)支(zhi)(zhi)管(guan)(guan)中;在(zai)排(pai)(pai)煙系(xi)統(tong)中,煙氣(qi)由支(zhi)(zhi)管(guan)(guan)到(dao)主干管(guan)(guan)后,進入(ru)排(pai)(pai)煙風(feng)(feng)機(ji)(ji)排(pai)(pai)出。當建筑(zhu)物內發生火(huo)(huo)(huo)災(zai)時,在(zai)通(tong)(tong)風(feng)(feng)、空調系(xi)統(tong)中,為了防止火(huo)(huo)(huo)勢通(tong)(tong)過送(song)(song)風(feng)(feng)系(xi)統(tong)蔓延(yan),當送(song)(song)風(feng)(feng)系(xi)統(tong)中氣(qi)體溫(wen)度(du)達(da)到(dao)70℃時,防火(huo)(huo)(huo)閥(fa)(fa)機(ji)(ji)構(gou)上(shang)熔斷(duan)器動作,閥(fa)(fa)門亦迅速關閥(fa)(fa),切斷(duan)煙氣(qi)與(yu)火(huo)(huo)(huo)勢沿風(feng)(feng)管(guan)(guan)蔓延(yan)的通(tong)(tong)路(lu)。同樣(yang),在(zai)排(pai)(pai)煙系(xi)統(tong)中,發生火(huo)(huo)(huo)災(zai)時,排(pai)(pai)煙閥(fa)(fa)開(kai)啟,進行排(pai)(pai)煙,為了截斷(duan)高溫(wen)煙氣(qi)在(zai)排(pai)(pai)煙管(guan)(guan)路(lu)中流動,防止火(huo)(huo)(huo)勢蔓延(yan)到(dao)另一防火(huo)(huo)(huo)分區(qu),當排(pai)(pai)出的煙氣(qi)溫(wen)度(du)達(da)到(dao)280℃時,排(pai)(pai)煙防火(huo)(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙口上(shang)熔斷(duan)器動作,閥(fa)(fa)門必須自動關閉,阻止排(pai)(pai)煙。由此可見,防火(huo)(huo)(huo)閥(fa)(fa)、排(pai)(pai)煙閥(fa)(fa)做到(dao)了該通(tong)(tong)則通(tong)(tong),該斷(duan)則斷(duan)的隔煙阻火(huo)(huo)(huo)作用。
1) 送(song)風(feng),包(bao)括(kuo)通氣(qi)(qi),如(ru)(ru)送(song)鮮風(feng)和排(pai)氣(qi)(qi),這個范圍很(hen)廣,如(ru)(ru)工廠車(che)間(jian),生產場(chang)地空氣(qi)(qi),由于有害氣(qi)(qi)體產生需(xu)要(yao)(yao)(yao)排(pai)出(chu)室外(wai)(wai),又需(xu)要(yao)(yao)(yao)把(ba)室外(wai)(wai)空氣(qi)(qi)輸送(song)至室內。這時就要(yao)(yao)(yao)使用(yong)(yong)流量大而壓力小的(de)(de)空氣(qi)(qi)輸送(song)管(guan)(guan)道(dao)(dao),螺旋風(feng)管(guan)(guan)就適(shi)用(yong)(yong),一般情況下使用(yong)(yong)鍍鋅鐵管(guan)(guan),有腐蝕性及特(te)別潮(chao)濕場(chang)所使用(yong)(yong)不(bu)銹鋼管(guan)(guan)。2) 送(song)冷風(feng)。常見的(de)(de)是中(zhong)央空調的(de)(de)管(guan)(guan)道(dao)(dao),這種管(guan)(guan)道(dao)(dao)需(xu)要(yao)(yao)(yao)加保溫材料。螺旋風(feng)管(guan)(guan)可(ke)內貼(tie)保溫材料,外(wai)(wai)表看來美觀。3) 排(pai)油(you)(you)煙。飯店(dian)、酒樓(lou)、賓館(guan)的(de)(de)廚(chu)房均有大量油(you)(you)煙產生,需(xu)要(yao)(yao)(yao)排(pai)出(chu),使用(yong)(yong)圓形的(de)(de)風(feng)管(guan)(guan)就是油(you)(you)煙囪。在這里,螺旋風(feng)管(guan)(guan)該叫做油(you)(you)煙管(guan)(guan)。4) 除塵。有些(xie)(xie)工廠生產車(che)間(jian)很(hen)多塵埃,需(xu)要(yao)(yao)(yao)專門的(de)(de)除塵裝置(zhi),其中(zhong)量較(jiao)大的(de)(de)管(guan)(guan)道(dao)(dao),可(ke)使用(yong)(yong)螺旋風(feng)管(guan)(guan)。5) 散裝物(wu)料輸送(song)。有些(xie)(xie)工廠的(de)(de)生產過(guo)程中(zhong),需(xu)要(yao)(yao)(yao)輸送(song)松散的(de)(de)顆粒,特(te)別是比重不(bu)大的(de)(de)如(ru)(ru)發泡塑料粒之類的(de)(de)使用(yong)(yong)螺旋風(feng)管(guan)(guan)造價低(di)、效果好。
通(tong)(tong)風(feng)(feng)(feng)、空調(diao)設(she)(she)備防(fang)火(huo)(huo)防(fang)爆措施1、空氣(qi)中含有(you)容易起(qi)火(huo)(huo)或(huo)(huo)爆炸(zha)(zha)物質(zhi)的(de)(de)(de)(de)(de)(de)(de)房(fang)間(jian),其(qi)送(song)、排風(feng)(feng)(feng)系統(tong)應采(cai)(cai)用(yong)(yong)(yong)防(fang)爆型的(de)(de)(de)(de)(de)(de)(de)通(tong)(tong)風(feng)(feng)(feng)設(she)(she)備和(he)不(bu)會產(chan)生(sheng)火(huo)(huo)花的(de)(de)(de)(de)(de)(de)(de)材料(liao)(如可(ke)(ke)采(cai)(cai)用(yong)(yong)(yong)有(you)色金(jin)屬制造的(de)(de)(de)(de)(de)(de)(de)風(feng)(feng)(feng)機(ji)(ji)葉片和(he)防(fang)爆電動機(ji)(ji))。當送(song)風(feng)(feng)(feng)機(ji)(ji)布(bu)置(zhi)在(zai)單獨分(fen)隔(ge)的(de)(de)(de)(de)(de)(de)(de)通(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)房(fang)內(nei),且送(song)風(feng)(feng)(feng)干管(guan)上設(she)(she)置(zhi)防(fang)止回流設(she)(she)施時(shi),可(ke)(ke)采(cai)(cai)用(yong)(yong)(yong)普通(tong)(tong)型通(tong)(tong)風(feng)(feng)(feng)設(she)(she)備。2、含有(you)易燃(ran)(ran)、易爆粉(fen)(fen)(fen)(fen)塵(碎屑)的(de)(de)(de)(de)(de)(de)(de)空氣(qi),在(zai)進入排風(feng)(feng)(feng)機(ji)(ji)前應采(cai)(cai)用(yong)(yong)(yong)不(bu)產(chan)生(sheng)火(huo)(huo)花的(de)(de)(de)(de)(de)(de)(de)除(chu)(chu)塵器進行處理(li),以(yi)防(fang)止除(chu)(chu)塵器工作過(guo)程中產(chan)生(sheng)火(huo)(huo)花引起(qi)粉(fen)(fen)(fen)(fen)塵、碎屑燃(ran)(ran)燒(shao)(shao)或(huo)(huo)爆炸(zha)(zha)。對于遇濕可(ke)(ke)能爆炸(zha)(zha)的(de)(de)(de)(de)(de)(de)(de)粉(fen)(fen)(fen)(fen)塵(如電石、鋅粉(fen)(fen)(fen)(fen)、鋁鎂合金(jin)粉(fen)(fen)(fen)(fen)等),嚴禁采(cai)(cai)用(yong)(yong)(yong)濕式除(chu)(chu)塵器。3、排除(chu)(chu)、輸(shu)送(song)有(you)燃(ran)(ran)燒(shao)(shao)、爆炸(zha)(zha)危險(xian)的(de)(de)(de)(de)(de)(de)(de)氣(qi)體、蒸氣(qi)和(he)粉(fen)(fen)(fen)(fen)塵的(de)(de)(de)(de)(de)(de)(de)排風(feng)(feng)(feng)系統(tong),應采(cai)(cai)用(yong)(yong)(yong)不(bu)燃(ran)(ran)材料(liao)并設(she)(she)有(you)導除(chu)(chu)靜電的(de)(de)(de)(de)(de)(de)(de)接地裝置(zhi)。其(qi)排風(feng)(feng)(feng)設(she)(she)備不(bu)應布(bu)置(zhi)在(zai)地下、半(ban)地下建筑(室)內(nei),以(yi)防(fang)止有(you)爆炸(zha)(zha)危險(xian)的(de)(de)(de)(de)(de)(de)(de)蒸氣(qi)和(he)粉(fen)(fen)(fen)(fen)塵等物質(zhi)的(de)(de)(de)(de)(de)(de)(de)積聚。4、排除(chu)(chu)、輸(shu)送(song)溫度超(chao)過(guo)80℃的(de)(de)(de)(de)(de)(de)(de)空氣(qi)或(huo)(huo)其(qi)他(ta)氣(qi)體以(yi)及容易起(qi)火(huo)(huo)的(de)(de)(de)(de)(de)(de)(de)碎屑的(de)(de)(de)(de)(de)(de)(de)管(guan)道,與(yu)可(ke)(ke)燃(ran)(ran)或(huo)(huo)難燃(ran)(ran)物體之間(jian)應保持不(bu)小(xiao)(xiao)于150mm的(de)(de)(de)(de)(de)(de)(de)間(jian)隙,或(huo)(huo)采(cai)(cai)用(yong)(yong)(yong)厚度不(bu)小(xiao)(xiao)于50mm的(de)(de)(de)(de)(de)(de)(de)不(bu)燃(ran)(ran)材料(liao)隔(ge)熱,以(yi)防(fang)止填塞物與(yu)構(gou)件(jian)因受(shou)這些(xie)高溫管(guan)道的(de)(de)(de)(de)(de)(de)(de)影響而導致(zhi)火(huo)(huo)災。當管(guan)道互為上下布(bu)置(zhi)時(shi),表面溫度較高者應布(bu)置(zhi)在(zai)上面。
風(feng)(feng)(feng)(feng)管(guan)(guan)主要(yao)指中央(yang)空調(diao)系統(tong)的(de)(de)通風(feng)(feng)(feng)(feng)管(guan)(guan)道(dao),它常(chang)常(chang)被忽視(shi),但(dan)卻是空調(diao)系統(tong)的(de)(de)重(zhong)(zhong)要(yao)組成部分,目前常(chang)見的(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)主要(yao)有四種:1)鍍(du)鋅薄(bo)鋼(gang)板(ban)風(feng)(feng)(feng)(feng)管(guan)(guan);2)無(wu)(wu)(wu)機(ji)玻(bo)(bo)璃(li)(li)鋼(gang)風(feng)(feng)(feng)(feng)管(guan)(guan);3)復合(he)玻(bo)(bo)纖(xian)板(ban)風(feng)(feng)(feng)(feng)管(guan)(guan);4)纖(xian)維織(zhi)物風(feng)(feng)(feng)(feng)管(guan)(guan)。鍍(du)鋅薄(bo)鋼(gang)板(ban)風(feng)(feng)(feng)(feng)管(guan)(guan):早使用(yong)(yong)的(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan),采(cai)用(yong)(yong)鍍(du)鋅薄(bo)鋼(gang)板(ban)制(zhi)作(zuo),適合(he)含濕量(liang)小的(de)(de)一般(ban)性氣體的(de)(de)輸(shu)送,有易生銹,無(wu)(wu)(wu)保溫和消(xiao)聲功能(neng),制(zhi)作(zuo)安裝周(zhou)期長的(de)(de)特點。無(wu)(wu)(wu)機(ji)玻(bo)(bo)璃(li)(li)鋼(gang)風(feng)(feng)(feng)(feng)管(guan)(guan):較新(xin)的(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)類型,采(cai)用(yong)(yong)玻(bo)(bo)璃(li)(li)纖(xian)維增(zeng)強無(wu)(wu)(wu)機(ji)材料制(zhi)作(zuo),遇(yu)火不燃、耐腐蝕、份量(liang)重(zhong)(zhong),硬度大(da)但(dan)較脆,受自重(zhong)(zhong)影響易變(bian)形酥裂(lie),無(wu)(wu)(wu)保溫和消(xiao)聲性能(neng),制(zhi)作(zuo)安裝周(zhou)期長。
消防排煙風機風量與送風機風量計算方法是根據建筑面積來確定的,每個防煙分區都需要獨立計算其排煙量,當排煙風機擔負一個防煙分區的時候可按平方米面積不小于60m3/h計算,擔負多個防煙分區則按平方米面積不小于120m3/h計算。送風量按排煙量的50%計算。每個防煙分區不應大于500平方。常見的消防防排煙系統中,排煙量一般根據大防煙分區面積500*120等于60000立方每小時計算,在通風管道設計排煙量的時候要注意漏風量,一般可按小漏風量10%計算。例如:當建筑面積為1000平方時,通風管道價格需要設置兩個(ge)防(fang)煙分(fen)區,每個(ge)防(fang)煙分(fen)區的(de)大面積為(wei)500平方,排(pai)煙量(liang)是(shi)500*1203/h=600003/h,再加上小漏(lou)風量(liang)10%為(wei)60003/h,總排(pai)煙量(liang)應為(wei)660003/h,其中送風量(liang)為(wei)排(pai)煙量(liang)的(de)50%應為(wei)330003/h。