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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,高品質通風管配件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。通風管配件采用(yong)280℃溫(wen)度熔斷器(qi)重(zhong)新(xin)關閉。防火閥——通風空調系(xi)統(tong)70℃:風管(guan)穿越防火分(fen)區、隔(ge)墻樓板、水平(ping)風管(guan)的水平(ping)管(guan)段上(系(xi)統(tong)獨立(li)設(she)置可不設(she))、公共(gong)建筑豎向排風管(guan)支管(guan);150℃:公共(gong)建筑廚房排油煙管(guan)支管(guan);排煙防火閥——消(xiao)防排煙系(xi)統(tong)280℃:消(xiao)防排煙管(guan)道;
防(fang)火(huo)(huo)閥(fa)(fa)(fa)是用來(lai)阻斷(duan)來(lai)自火(huo)(huo)災(zai)區的(de)(de)(de)(de)煙氣及火(huo)(huo)焰通(tong)(tong)過(guo),并在一定時間內(nei)能(neng)滿足(zu)耐火(huo)(huo)穩定性(xing)和(he)(he)耐火(huo)(huo)完(wan)整性(xing)要求的(de)(de)(de)(de)閥(fa)(fa)(fa)門。為(wei)了將火(huo)(huo)災(zai)引起(qi)的(de)(de)(de)(de)損失減少到(dao)小程度,就必須采取有效的(de)(de)(de)(de)防(fang)火(huo)(huo)、防(fang)排煙措施,以控(kong)制火(huo)(huo)勢蔓延,而防(fang)火(huo)(huo)閥(fa)(fa)(fa)在通(tong)(tong)風、空調及防(fang)排煙系統中的(de)(de)(de)(de)合理設(she)置,則起(qi)到(dao)了重要的(de)(de)(de)(de)作(zuo)用。防(fang)火(huo)(huo)閥(fa)(fa)(fa)的(de)(de)(de)(de)結構(gou)(gou)和(he)(he)工作(zuo)原理,防(fang)火(huo)(huo)閥(fa)(fa)(fa)主要由閥(fa)(fa)(fa)體和(he)(he)執行機(ji)構(gou)(gou)組成。閥(fa)(fa)(fa)體由殼(ke)體、法(fa)蘭、葉片及葉片聯(lian)動機(ji)構(gou)(gou)等(deng)組成。執行機(ji)構(gou)(gou)由外殼(ke)、葉片調節機(ji)構(gou)(gou)、離合器、溫度熔斷(duan)器等(deng)組成。防(fang)火(huo)(huo)閥(fa)(fa)(fa)的(de)(de)(de)(de)執行機(ji)構(gou)(gou)是通(tong)(tong)過(guo)金屬易熔片和(he)(he)離合器機(ji)構(gou)(gou)來(lai)控(kong)制葉片的(de)(de)(de)(de)轉(zhuan)動。
1、消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)能(neng):鍍鋅薄(bo)(bo)鋼(gang)板(ban)風(feng)管:無消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)能(neng),自身(shen)震動會產(chan)生(sheng)聲(sheng)(sheng)(sheng)音,必(bi)須加(jia)裝(zhuang)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器(qi)。無機玻(bo)璃(li)鋼(gang)風(feng)管:無消(xiao)(xiao)聲(sheng)(sheng)(sheng)性(xing)能(neng),隔聲(sheng)(sheng)(sheng)性(xing)能(neng)優(you)于(yu)鍍鋅薄(bo)(bo)鋼(gang)板(ban)風(feng)管,必(bi)須加(jia)裝(zhuang)消(xiao)(xiao)聲(sheng)(sheng)(sheng)器(qi)。復(fu)合玻(bo)纖(xian)板(ban)風(feng)管:其(qi)管壁(bi)是一種多孔性(xing)吸(xi)聲(sheng)(sheng)(sheng)材(cai)料,可(ke)(ke)省(sheng)去(qu)專用消(xiao)(xiao)聲(sheng)(sheng)(sheng)器(qi)。纖(xian)維織物風(feng)管:其(qi)管壁(bi)為柔性(xing)纖(xian)維織物,本身(shen)就(jiu)是聲(sheng)(sheng)(sheng)音的不(bu)(bu)良(liang)導(dao)體(ti)和吸(xi)收體(ti),自身(shen)不(bu)(bu)會產(chan)生(sheng)聲(sheng)(sheng)(sheng)音,還可(ke)(ke)以一定程度(du)(du)上吸(xi)收設備噪聲(sheng)(sheng)(sheng),隨著管道(dao)的延長,效(xiao)果更為明顯(xian),可(ke)(ke)省(sheng)去(qu)專用消(xiao)(xiao)聲(sheng)(sheng)(sheng)器(qi)。2、保(bao)溫(wen)性(xing)能(neng):鍍鋅薄(bo)(bo)鋼(gang)板(ban)風(feng)管:導(dao)熱(re)系數(shu)很大(da)(為60.4 W/m?K),無保(bao)溫(wen)性(xing)能(neng),必(bi)須另外(wai)加(jia)包保(bao)溫(wen)層(ceng)及保(bao)護層(ceng)。無機玻(bo)璃(li)鋼(gang)風(feng)管:導(dao)熱(re)系數(shu)大(da)(為0.5W/m?K),無保(bao)溫(wen)性(xing)能(neng)。復(fu)合玻(bo)纖(xian)板(ban)風(feng)管:導(dao)熱(re)系數(shu)小(平均溫(wen)度(du)(du)24℃時小于(yu)1W/m?K),有一定保(bao)溫(wen)性(xing)能(neng),不(bu)(bu)加(jia)裝(zhuang)保(bao)溫(wen)。
消(xiao)(xiao)防(fang)(fang)(fang)排(pai)(pai)煙(yan)(yan)風(feng)(feng)機風(feng)(feng)量(liang)(liang)(liang)與送風(feng)(feng)機風(feng)(feng)量(liang)(liang)(liang)計(ji)(ji)算(suan)方(fang)(fang)法是根(gen)據(ju)建筑面(mian)(mian)積(ji)來確定的,每(mei)(mei)個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)都需要獨立(li)計(ji)(ji)算(suan)其排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang),當(dang)排(pai)(pai)煙(yan)(yan)風(feng)(feng)機擔(dan)負一(yi)(yi)個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)的時候可(ke)按(an)(an)平(ping)(ping)方(fang)(fang)米(mi)(mi)面(mian)(mian)積(ji)不(bu)(bu)小于(yu)60m3/h計(ji)(ji)算(suan),擔(dan)負多個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)則按(an)(an)平(ping)(ping)方(fang)(fang)米(mi)(mi)面(mian)(mian)積(ji)不(bu)(bu)小于(yu)120m3/h計(ji)(ji)算(suan)。送風(feng)(feng)量(liang)(liang)(liang)按(an)(an)排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)的50%計(ji)(ji)算(suan)。每(mei)(mei)個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)不(bu)(bu)應(ying)大(da)于(yu)500平(ping)(ping)方(fang)(fang)。常見的消(xiao)(xiao)防(fang)(fang)(fang)防(fang)(fang)(fang)排(pai)(pai)煙(yan)(yan)系統中,排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)一(yi)(yi)般根(gen)據(ju)大(da)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)面(mian)(mian)積(ji)500*120等于(yu)60000立(li)方(fang)(fang)每(mei)(mei)小時計(ji)(ji)算(suan),在設計(ji)(ji)排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)的時候要注(zhu)意漏(lou)(lou)(lou)風(feng)(feng)量(liang)(liang)(liang),一(yi)(yi)般可(ke)按(an)(an)小漏(lou)(lou)(lou)風(feng)(feng)量(liang)(liang)(liang)10%計(ji)(ji)算(suan)。例如:當(dang)建筑面(mian)(mian)積(ji)為(wei)(wei)1000平(ping)(ping)方(fang)(fang)時,需要設置(zhi)兩個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu),每(mei)(mei)個(ge)(ge)防(fang)(fang)(fang)煙(yan)(yan)分區(qu)(qu)的大(da)面(mian)(mian)積(ji)為(wei)(wei)500平(ping)(ping)方(fang)(fang),排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)是500*1203/h=600003/h,再(zai)加上小漏(lou)(lou)(lou)風(feng)(feng)量(liang)(liang)(liang)10%為(wei)(wei)60003/h,總排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)應(ying)為(wei)(wei)660003/h,其中送風(feng)(feng)量(liang)(liang)(liang)為(wei)(wei)排(pai)(pai)煙(yan)(yan)量(liang)(liang)(liang)的50%應(ying)為(wei)(wei)330003/h。
消防(fang)排(pai)煙(yan)風機首先(xian)應該滿足溫(wen)度和(he)時間的(de)特性(xing),即國家規(gui)定280℃/0.5h;其次,在一般環境溫(wen)度下,可(ke)(ke)以(yi)保(bao)證有效的(de)排(pai)煙(yan)控(kong)制量。此外還要(yao)求(qiu)消防(fang)排(pai)煙(yan)風機能(neng)夠(gou)進(jin)行(xing)(xing)周(zhou)期性(xing)的(de)實驗(yan),能(neng)夠(gou)發現其中的(de)不(bu)足,并加以(yi)改進(jin);可(ke)(ke)以(yi)適(shi)用(yong)(yong)(yong)(yong)各種通風要(yao)求(qiu)的(de)管道(dao),便于安(an)裝與使用(yong)(yong)(yong)(yong)。消防(fang)排(pai)煙(yan)風機的(de)性(xing)能(neng)優(you)良、耐高(gao)溫(wen)性(xing)能(neng)良好、效率(lv)高(gao)、占地比離心風機少、高(gao)溫(wen)性(xing)能(neng)優(you)良。消防(fang)排(pai)煙(yan)風機能(neng)在300℃高(gao)溫(wen)條(tiao)件下連續運(yun)行(xing)(xing)60分(fen)鐘以(yi)上,100℃溫(wen)度條(tiao)件下連續20小時不(bu)損壞(huai),應用(yong)(yong)(yong)(yong)范(fan)圍(wei)廣,可(ke)(ke)根據高(gao)級民(min)用(yong)(yong)(yong)(yong)建筑(zhu)(zhu)的(de)不(bu)同要(yao)求(qiu),采用(yong)(yong)(yong)(yong)變速(su)或多(duo)速(su)的(de)驅動(dong)型式(shi)(shi),消防(fang)排(pai)煙(yan)風機廣泛應用(yong)(yong)(yong)(yong)于高(gao)級民(min)用(yong)(yong)(yong)(yong)建筑(zhu)(zhu)、烤(kao)箱、地下車庫、隧道(dao)等場(chang)合(he)。安(an)裝方(fang)便,可(ke)(ke)直(zhi)接和(he)墻壁(bi)安(an)裝,安(an)裝可(ke)(ke)采用(yong)(yong)(yong)(yong)垂直(zhi)式(shi)(shi)、水平式(shi)(shi)或吊裝式(shi)(shi),很大程(cheng)度上節省了占地面積。
1.冷(leng)(leng)(leng)(熱(re)(re)(re)(re))水機(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)基本(ben)工作過(guo)程是:室(shi)(shi)外(wai)的(de)(de)(de)制(zhi)冷(leng)(leng)(leng)機(ji)(ji)組(zu)(zu)(zu)對冷(leng)(leng)(leng)(熱(re)(re)(re)(re))媒(mei)水進行(xing)制(zhi)冷(leng)(leng)(leng)降溫(或加(jia)熱(re)(re)(re)(re)升溫),然(ran)后由水泵將(jiang)(jiang)降溫后的(de)(de)(de)冷(leng)(leng)(leng)媒(mei)(熱(re)(re)(re)(re))水輸(shu)(shu)(shu)送(song)(song)到安裝在(zai)室(shi)(shi)內(nei)的(de)(de)(de)風(feng)機(ji)(ji)盤管(guan)機(ji)(ji)組(zu)(zu)(zu)中(zhong),由風(feng)機(ji)(ji)盤管(guan)機(ji)(ji)組(zu)(zu)(zu)采取就地(di)回(hui)風(feng)的(de)(de)(de)方式(shi)與(yu)室(shi)(shi)內(nei)空(kong)(kong)(kong)氣(qi)(qi)(qi)進行(xing)熱(re)(re)(re)(re)交換(huan)(huan)實現對室(shi)(shi)內(nei)空(kong)(kong)(kong)氣(qi)(qi)(qi)處理的(de)(de)(de)目的(de)(de)(de)。2.風(feng)管(guan)(道(dao))式(shi)機(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)基本(ben)工作過(guo)程是:供冷(leng)(leng)(leng)時,室(shi)(shi)外(wai)的(de)(de)(de)制(zhi)冷(leng)(leng)(leng)機(ji)(ji)組(zu)(zu)(zu)吸收(shou)來自室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)制(zhi)冷(leng)(leng)(leng)劑蒸氣(qi)(qi)(qi)經壓(ya)縮、冷(leng)(leng)(leng)凝后向(xiang)各(ge)(ge)室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)輸(shu)(shu)(shu)送(song)(song)液(ye)體制(zhi)冷(leng)(leng)(leng)劑。供熱(re)(re)(re)(re)時,室(shi)(shi)外(wai)的(de)(de)(de)制(zhi)冷(leng)(leng)(leng)機(ji)(ji)組(zu)(zu)(zu)吸收(shou)來自冷(leng)(leng)(leng)凝器(qi)的(de)(de)(de)制(zhi)冷(leng)(leng)(leng)劑蒸氣(qi)(qi)(qi)經壓(ya)縮后向(xiang)各(ge)(ge)室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)輸(shu)(shu)(shu)送(song)(song)汽(qi)體制(zhi)冷(leng)(leng)(leng)劑,室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)通(tong)(tong)過(guo)布置在(zai)天(tian)花(hua)板上(shang)的(de)(de)(de)回(hui)風(feng)口將(jiang)(jiang)空(kong)(kong)(kong)氣(qi)(qi)(qi)吸入(ru)(ru),進行(xing)熱(re)(re)(re)(re)交換(huan)(huan)后送(song)(song)入(ru)(ru)安裝在(zai)室(shi)(shi)內(nei)各(ge)(ge)房(fang)間天(tian)花(hua)板中(zhong)的(de)(de)(de)風(feng)管(guan)(道(dao))內(nei),并(bing)通(tong)(tong)過(guo)出風(feng)口上(shang)的(de)(de)(de)散流器(qi)向(xiang)室(shi)(shi)內(nei)各(ge)(ge)房(fang)間輸(shu)(shu)(shu)送(song)(song)空(kong)(kong)(kong)氣(qi)(qi)(qi)。在(zai)風(feng)管(guan)(道(dao))上(shang)設計有新風(feng)門和排風(feng)門,可以按一定比例置換(huan)(huan)空(kong)(kong)(kong)氣(qi)(qi)(qi),以保(bao)證室(shi)(shi)內(nei)空(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)質量。