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1.冷(leng)(熱(re))水機(ji)(ji)組(zu)(zu)(zu)(zu)的(de)(de)基本工作過(guo)(guo)(guo)程是(shi):室(shi)(shi)外的(de)(de)制(zhi)(zhi)冷(leng)機(ji)(ji)組(zu)(zu)(zu)(zu)對冷(leng)(熱(re))媒(mei)水進(jin)行(xing)(xing)(xing)制(zhi)(zhi)冷(leng)降溫(或加熱(re)升溫),然后(hou)(hou)(hou)由(you)水泵將降溫后(hou)(hou)(hou)的(de)(de)冷(leng)媒(mei)(熱(re))水輸(shu)(shu)(shu)送到安(an)裝在室(shi)(shi)內(nei)的(de)(de)風機(ji)(ji)盤管(guan)(guan)(guan)機(ji)(ji)組(zu)(zu)(zu)(zu)中,由(you)風機(ji)(ji)盤管(guan)(guan)(guan)機(ji)(ji)組(zu)(zu)(zu)(zu)采(cai)取就地(di)回風的(de)(de)方式與室(shi)(shi)內(nei)空氣(qi)(qi)(qi)進(jin)行(xing)(xing)(xing)熱(re)交換實現對室(shi)(shi)內(nei)空氣(qi)(qi)(qi)處理的(de)(de)目的(de)(de)。2.風管(guan)(guan)(guan)(道(dao))式機(ji)(ji)組(zu)(zu)(zu)(zu)的(de)(de)基本工作過(guo)(guo)(guo)程是(shi):供(gong)冷(leng)時(shi),室(shi)(shi)外的(de)(de)制(zhi)(zhi)冷(leng)機(ji)(ji)組(zu)(zu)(zu)(zu)吸收來自室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)(zu)的(de)(de)制(zhi)(zhi)冷(leng)劑(ji)(ji)蒸(zheng)氣(qi)(qi)(qi)經壓縮(suo)、冷(leng)凝(ning)后(hou)(hou)(hou)向各(ge)室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)(zu)輸(shu)(shu)(shu)送液體制(zhi)(zhi)冷(leng)劑(ji)(ji)。供(gong)熱(re)時(shi),室(shi)(shi)外的(de)(de)制(zhi)(zhi)冷(leng)機(ji)(ji)組(zu)(zu)(zu)(zu)吸收來自冷(leng)凝(ning)器的(de)(de)制(zhi)(zhi)冷(leng)劑(ji)(ji)蒸(zheng)氣(qi)(qi)(qi)經壓縮(suo)后(hou)(hou)(hou)向各(ge)室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)(zu)輸(shu)(shu)(shu)送汽體制(zhi)(zhi)冷(leng)劑(ji)(ji),室(shi)(shi)內(nei)機(ji)(ji)組(zu)(zu)(zu)(zu)通過(guo)(guo)(guo)布(bu)置(zhi)在天花板上(shang)的(de)(de)回風口將空氣(qi)(qi)(qi)吸入,進(jin)行(xing)(xing)(xing)熱(re)交換后(hou)(hou)(hou)送入安(an)裝在室(shi)(shi)內(nei)各(ge)房間天花板中的(de)(de)風管(guan)(guan)(guan)(道(dao))內(nei),并通過(guo)(guo)(guo)出風口上(shang)的(de)(de)散流器向室(shi)(shi)內(nei)各(ge)房間輸(shu)(shu)(shu)送空氣(qi)(qi)(qi)。在風管(guan)(guan)(guan)(道(dao))上(shang)設計(ji)有新(xin)風門和排風門,可以(yi)(yi)按一定比例置(zhi)換空氣(qi)(qi)(qi),以(yi)(yi)保證室(shi)(shi)內(nei)空氣(qi)(qi)(qi)的(de)(de)質量。
1.風管程度安裝,邊長尺寸小于等于400mm,間距不應大于4m;大于400mm,不應大于3m;對于薄鋼板法蘭的風管,其支、吊架間距不應大于3m。2.風管垂直安裝,間距不應大于4m,不銹鋼通風管道單根直管至少應有2個固定點。3.支、吊架不宜設置在風口、閥門、檢討門及自控機構處,離風口或插接管的距離不宜小于200mm。4.當程度懸吊的主、干風管長度超過20m時,高品質不銹鋼通風管道應(ying)(ying)(ying)設置(zhi)防止擺(bai)動固(gu)定(ding)點,每個系統不(bu)(bu)應(ying)(ying)(ying)少于(yu)(yu)(yu)(yu)1個。5.防火閥直徑或(huo)長邊(bian)尺(chi)寸大于(yu)(yu)(yu)(yu)等于(yu)(yu)(yu)(yu)630mm時,宜設獨立支、吊架。6.帶高效過(guo)濾器的(de)送風(feng)口,應(ying)(ying)(ying)采取可分離調節高度(du)的(de)吊桿。金屬風(feng)管(guan)(guan)(guan)(guan)(guan)的(de)加(jia)固(gu):矩(ju)形(xing)風(feng)管(guan)(guan)(guan)(guan)(guan)邊(bian)長大于(yu)(yu)(yu)(yu)630mm、保(bao)溫風(feng)管(guan)(guan)(guan)(guan)(guan)邊(bian)長大于(yu)(yu)(yu)(yu)800mm,并且管(guan)(guan)(guan)(guan)(guan)段長度(du)大于(yu)(yu)(yu)(yu)1250mm或(huo)低壓風(feng)管(guan)(guan)(guan)(guan)(guan)單邊(bian)平面積大于(yu)(yu)(yu)(yu)1.2m2、中、高壓風(feng)管(guan)(guan)(guan)(guan)(guan)大于(yu)(yu)(yu)(yu)1.0m2中,均應(ying)(ying)(ying)采用加(jia)固(gu)辦法。角鋼、加(jia)固(gu)筋的(de)加(jia)固(gu),其高度(du)應(ying)(ying)(ying)小于(yu)(yu)(yu)(yu)或(huo)等于(yu)(yu)(yu)(yu)風(feng)管(guan)(guan)(guan)(guan)(guan)的(de)寬(kuan)度(du)。角鋼、加(jia)固(gu)筋與風(feng)管(guan)(guan)(guan)(guan)(guan)鉚接(jie)的(de)間隔應(ying)(ying)(ying)均勻,不(bu)(bu)應(ying)(ying)(ying)大于(yu)(yu)(yu)(yu)220mm。.對于(yu)(yu)(yu)(yu)凈化空調系統,不(bu)(bu)應(ying)(ying)(ying)在風(feng)管(guan)(guan)(guan)(guan)(guan)內設加(jia)固(gu)框(kuang)及加(jia)固(gu)筋。
1、 薄(bo)鋼(gang)板(ban)(ban)(ban)矩(ju)形(xing)(xing)風(feng)(feng)管(guan)(guan)的剛度(du)(du)不(bu)(bu)(bu)(bu)夠,表(biao)(biao)現(xian)形(xing)(xing)式(shi):風(feng)(feng)管(guan)(guan)的大邊(bian)上下(xia)有不(bu)(bu)(bu)(bu)同程(cheng)度(du)(du)的下(xia)沉(chen),兩側面(mian)(mian)(mian)小(xiao)邊(bian)稍向外凸(tu)出,有明顯(xian)的變形(xing)(xing)。對產(chan)生的原因分(fen)析(xi):① 制作風(feng)(feng)管(guan)(guan)的鋼(gang)板(ban)(ban)(ban)厚度(du)(du)不(bu)(bu)(bu)(bu)符合施工(gong)及(ji)(ji)驗(yan)(yan)收規(gui)范的要(yao)求(qiu)(qiu);② 咬(yao)口的形(xing)(xing)式(shi)選擇不(bu)(bu)(bu)(bu)當(dang);③ 沒有按(an)照(zhao)《施工(gong)及(ji)(ji)驗(yan)(yan)收規(gui)范》要(yao)求(qiu)(qiu),對于邊(bian)長(chang)(chang)≥630 mm或保(bao)溫風(feng)(feng)管(guan)(guan)≥800 mm,其管(guan)(guan)長(chang)(chang)在(zai)1 200mm以上,均應采取(qu)加固措施。2 、薄(bo)鋼(gang)板(ban)(ban)(ban)矩(ju)形(xing)(xing)風(feng)(feng)管(guan)(guan)扭曲、翹角(jiao)(jiao),表(biao)(biao)現(xian)形(xing)(xing)式(shi):風(feng)(feng)管(guan)(guan)表(biao)(biao)面(mian)(mian)(mian)不(bu)(bu)(bu)(bu)平(ping);對角(jiao)(jiao)線不(bu)(bu)(bu)(bu)相(xiang)等;相(xiang)鄰表(biao)(biao)面(mian)(mian)(mian)互不(bu)(bu)(bu)(bu)垂直;兩相(xiang)對表(biao)(biao)面(mian)(mian)(mian)不(bu)(bu)(bu)(bu)平(ping)行及(ji)(ji)兩管(guan)(guan)端平(ping)面(mian)(mian)(mian)不(bu)(bu)(bu)(bu)平(ping)行等。產(chan)生的原因分(fen)析(xi):① 矩(ju)形(xing)(xing)板(ban)(ban)(ban)料下(xia)料后,未(wei)對四(si)個角(jiao)(jiao)進行嚴(yan)格的角(jiao)(jiao)方測(ce)量(liang);② 風(feng)(feng)管(guan)(guan)的大邊(bian)或小(xiao)邊(bian)的兩個相(xiang)對面(mian)(mian)(mian)的板(ban)(ban)(ban)料長(chang)(chang)度(du)(du)和(he)寬度(du)(du)不(bu)(bu)(bu)(bu)相(xiang)等;③ 風(feng)(feng)管(guan)(guan)的四(si)個角(jiao)(jiao)處(chu)的咬(yao)口寬度(du)(du)不(bu)(bu)(bu)(bu)相(xiang)等;④ 手工(gong)咬(yao)口合縫受力不(bu)(bu)(bu)(bu)均。
在(zai)(zai)(zai)空調(diao)(diao)送(song)風(feng)系(xi)(xi)統(tong)中,空調(diao)(diao)送(song)風(feng)機(ji)送(song)出(chu)的(de)風(feng)必須通(tong)過主(zhu)干管(guan)分(fen)配到支管(guan)中;在(zai)(zai)(zai)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)系(xi)(xi)統(tong)中,煙(yan)(yan)(yan)氣(qi)(qi)由支管(guan)到主(zhu)干管(guan)后,進入(ru)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)風(feng)機(ji)排(pai)(pai)(pai)(pai)出(chu)。當建筑物內(nei)發生火(huo)災時(shi)(shi),在(zai)(zai)(zai)通(tong)風(feng)、空調(diao)(diao)系(xi)(xi)統(tong)中,為(wei)了(le)防止(zhi)火(huo)勢通(tong)過送(song)風(feng)系(xi)(xi)統(tong)蔓延(yan),當送(song)風(feng)系(xi)(xi)統(tong)中氣(qi)(qi)體溫度達到70℃時(shi)(shi),防火(huo)閥機(ji)構上熔(rong)斷(duan)器(qi)動作(zuo)(zuo),閥門亦(yi)迅(xun)速(su)關(guan)閥,切斷(duan)煙(yan)(yan)(yan)氣(qi)(qi)與火(huo)勢沿風(feng)管(guan)蔓延(yan)的(de)通(tong)路(lu)(lu)。同樣,在(zai)(zai)(zai)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)系(xi)(xi)統(tong)中,發生火(huo)災時(shi)(shi),排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)閥開啟,進行排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan),為(wei)了(le)截斷(duan)高溫煙(yan)(yan)(yan)氣(qi)(qi)在(zai)(zai)(zai)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)管(guan)路(lu)(lu)中流動,防止(zhi)火(huo)勢蔓延(yan)到另一防火(huo)分(fen)區(qu),當排(pai)(pai)(pai)(pai)出(chu)的(de)煙(yan)(yan)(yan)氣(qi)(qi)溫度達到280℃時(shi)(shi),排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)防火(huo)閥、排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)口上熔(rong)斷(duan)器(qi)動作(zuo)(zuo),閥門必須自動關(guan)閉,阻止(zhi)排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)。由此可見,防火(huo)閥、排(pai)(pai)(pai)(pai)煙(yan)(yan)(yan)閥做到了(le)該通(tong)則(ze)通(tong),該斷(duan)則(ze)斷(duan)的(de)隔煙(yan)(yan)(yan)阻火(huo)作(zuo)(zuo)用(yong)。
1.通(tong)風(feng)(feng)、空(kong)氣(qi)調(diao)節(jie)系(xi)統的(de)(de)(de)(de)(de)風(feng)(feng)管(guan)(guan)在下列部位應(ying)設置(zhi)(zhi)公稱(cheng)動作溫(wen)度為70℃的(de)(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)。①穿(chuan)越(yue)防(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)區處。②穿(chuan)越(yue)通(tong)風(feng)(feng)空(kong)調(diao)機(ji)房的(de)(de)(de)(de)(de)房間隔墻和樓板處。③穿(chuan)越(yue)重要(yao)或火(huo)(huo)(huo)災危險(xian)性大的(de)(de)(de)(de)(de)場(chang)所的(de)(de)(de)(de)(de)房間隔墻和樓板處。④穿(chuan)越(yue)防(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)隔處的(de)(de)(de)(de)(de)變形縫兩側。⑤豎(shu)向(xiang)風(feng)(feng)管(guan)(guan)與每層水平(ping)風(feng)(feng)管(guan)(guan)交接處的(de)(de)(de)(de)(de)水平(ping)管(guan)(guan)段上(shang),當建(jian)筑(zhu)(zhu)內每個防(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)區的(de)(de)(de)(de)(de)通(tong)風(feng)(feng)、空(kong)氣(qi)調(diao)節(jie)系(xi)統均(jun)獨立設置(zhi)(zhi)時,水平(ping)風(feng)(feng)管(guan)(guan)與豎(shu)向(xiang)總管(guan)(guan)的(de)(de)(de)(de)(de)交接處可不設置(zhi)(zhi)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)。2.公共建(jian)筑(zhu)(zhu)的(de)(de)(de)(de)(de)浴(yu)室、衛(wei)生間和廚房的(de)(de)(de)(de)(de)豎(shu)向(xiang)排(pai)(pai)風(feng)(feng)管(guan)(guan),應(ying)采取防(fang)(fang)(fang)止回流措施(shi)并宜在支管(guan)(guan)上(shang)設置(zhi)(zhi)公稱(cheng)動作溫(wen)度為70℃的(de)(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)。公共建(jian)筑(zhu)(zhu)內廚房的(de)(de)(de)(de)(de)排(pai)(pai)油(you)煙(yan)管(guan)(guan)道宜按防(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)區設置(zhi)(zhi),且(qie)在與豎(shu)向(xiang)排(pai)(pai)風(feng)(feng)管(guan)(guan)連接的(de)(de)(de)(de)(de)支管(guan)(guan)處應(ying)設置(zhi)(zhi)公稱(cheng)動作溫(wen)度為150℃的(de)(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)。 3.排(pai)(pai)煙(yan)防(fang)(fang)(fang)火(huo)(huo)(huo)閥(fa)(280℃)的(de)(de)(de)(de)(de)設置(zhi)(zhi)場(chang)所:①排(pai)(pai)煙(yan)管(guan)(guan)進入排(pai)(pai)風(feng)(feng)機(ji)房處;②穿(chuan)越(yue)防(fang)(fang)(fang)火(huo)(huo)(huo)分(fen)區的(de)(de)(de)(de)(de)排(pai)(pai)煙(yan)管(guan)(guan)道上(shang);③排(pai)(pai)煙(yan)系(xi)統的(de)(de)(de)(de)(de)支管(guan)(guan)上(shang);