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鑒于軸(zhou)流風(feng)(feng)機(ji)有(you)(you)紊(wen)流區的性能特點(dian),在(zai)選型和使(shi)(shi)(shi)用(yong)時(shi),需(xu)要注意以下兩點(dian):建議使(shi)(shi)(shi)用(yong)在(zai)空(kong)曠環境(jing)中(zhong),軸(zhou)流風(feng)(feng)機(ji)的輸(shu)入(ru)功(gong)率隨系統靜(jing)壓的增大(da)而增大(da),而在(zai)紊(wen)流區,輸(shu)入(ru)功(gong)率的增大(da)幅度會更(geng)大(da)。因(yin)此(ci),軸(zhou)流風(feng)(feng)機(ji)一般多(duo)應(ying)用(yong)在(zai)有(you)(you)較大(da)空(kong)曠環境(jing)的場(chang)合下,可以使(shi)(shi)(shi)其工(gong)作在(zai)靜(jing)壓較低的環境(jing)下,降(jiang)(jiang)低功(gong)耗,保(bao)證穩定性和壽命。定期清理風(feng)(feng)道,當軸(zhou)流風(feng)(feng)機(ji)應(ying)用(yong)在(zai)較為封(feng)閉(bi)的風(feng)(feng)道系統中(zhong)時(shi),長期運行后風(feng)(feng)道中(zhong)的積灰、垃(la)圾逐(zhu)漸(jian)變多(duo),會使(shi)(shi)(shi)風(feng)(feng)道內的靜(jing)壓逐(zhu)漸(jian)增加(jia),使(shi)(shi)(shi)得風(feng)(feng)機(ji)的運行工(gong)況點(dian)逐(zhu)漸(jian)左(zuo)移。這不(bu)僅會降(jiang)(jiang)低風(feng)(feng)機(ji)性能,更(geng)重要的是會增加(jia)軸(zhou)流風(feng)(feng)機(ji)進入(ru)紊(wen)流區的風(feng)(feng)險。因(yin)此(ci)必須(xu)要定期清理風(feng)(feng)道,保(bao)證風(feng)(feng)機(ji)工(gong)況點(dian)不(bu)產生較大(da)偏移。
防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)外觀,防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)應(ying)外觀完好無損,機(ji)械(xie)(xie)部分(fen)(fen)外表無銹蝕、變(bian)形(xing)或機(ji)械(xie)(xie)損傷。在其明顯(xian)部位(wei)設(she)置(zhi)(zhi)永(yong)久性標牌,標明產(chan)品名稱、型號、規格(ge)、耐火(huo)(huo)性能及(ji)商(shang)標、生(sheng)產(chan)單位(wei)(制造商(shang))名稱和(he)廠址、出日期及(ji)產(chan)品生(sheng)產(chan)批號、執行標準(zhun)等,內容清晰,設(she)置(zhi)(zhi)牢靠。防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)安裝位(wei)置(zhi)(zhi)防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)主(zhu)要(yao)安裝在風(feng)(feng)管(guan)(guan)(guan)靠近(jin)防(fang)(fang)(fang)火(huo)(huo)分(fen)(fen)隔處(chu),暗裝時(shi),安裝部位(wei)應(ying)設(she)置(zhi)(zhi)方便(bian)維護的(de)(de)(de)(de)(de)檢(jian)修口。具體檢(jian)查要(yao)求(qiu)為:(1)通風(feng)(feng)、空(kong)調系統(tong)的(de)(de)(de)(de)(de)風(feng)(feng)管(guan)(guan)(guan),在以(yi)下部位(wei)應(ying)設(she)置(zhi)(zhi)公(gong)稱動作溫度為70℃的(de)(de)(de)(de)(de)防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa):①穿(chuan)(chuan)越防(fang)(fang)(fang)火(huo)(huo)分(fen)(fen)區(qu)處(chu);②穿(chuan)(chuan)越通風(feng)(feng)、空(kong)調機(ji)房(fang)(fang)的(de)(de)(de)(de)(de)房(fang)(fang)間隔墻(qiang)和(he)樓板處(chu);③穿(chuan)(chuan)越重要(yao)或火(huo)(huo)災危(wei)險性大的(de)(de)(de)(de)(de)房(fang)(fang)間隔墻(qiang)和(he)樓板處(chu);④穿(chuan)(chuan)越防(fang)(fang)(fang)火(huo)(huo)分(fen)(fen)隔處(chu)的(de)(de)(de)(de)(de)變(bian)形(xing)縫兩(liang)側;⑤豎向(xiang)(xiang)風(feng)(feng)管(guan)(guan)(guan)與每層水平風(feng)(feng)管(guan)(guan)(guan)交(jiao)接(jie)處(chu)的(de)(de)(de)(de)(de)水平管(guan)(guan)(guan)段上(shang)。當建(jian)(jian)筑(zhu)內每個防(fang)(fang)(fang)火(huo)(huo)分(fen)(fen)區(qu)的(de)(de)(de)(de)(de)通風(feng)(feng)、空(kong)調系統(tong)均獨立設(she)置(zhi)(zhi)時(shi),水平風(feng)(feng)管(guan)(guan)(guan)與豎向(xiang)(xiang)總管(guan)(guan)(guan)的(de)(de)(de)(de)(de)交(jiao)接(jie)處(chu)可不設(she)置(zhi)(zhi)防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)。(2)公(gong)共(gong)建(jian)(jian)筑(zhu)的(de)(de)(de)(de)(de)浴室、衛生(sheng)間和(he)廚房(fang)(fang)的(de)(de)(de)(de)(de)豎向(xiang)(xiang)排(pai)風(feng)(feng)管(guan)(guan)(guan),應(ying)采取防(fang)(fang)(fang)止回流措施,并宜在支(zhi)(zhi)管(guan)(guan)(guan)上(shang)設(she)置(zhi)(zhi)防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)。(3)公(gong)共(gong)建(jian)(jian)筑(zhu)內廚房(fang)(fang)的(de)(de)(de)(de)(de)排(pai)油(you)煙(yan)管(guan)(guan)(guan)道,宜按防(fang)(fang)(fang)火(huo)(huo)分(fen)(fen)區(qu)設(she)置(zhi)(zhi),且(qie)在與豎向(xiang)(xiang)排(pai)風(feng)(feng)管(guan)(guan)(guan)連接(jie)的(de)(de)(de)(de)(de)支(zhi)(zhi)管(guan)(guan)(guan)處(chu)應(ying)設(she)置(zhi)(zhi)防(fang)(fang)(fang)火(huo)(huo)閥(fa)(fa)(fa)。
在(zai)(zai)空(kong)(kong)調送(song)(song)風(feng)(feng)(feng)系(xi)(xi)(xi)統中(zhong)(zhong)(zhong),空(kong)(kong)調送(song)(song)風(feng)(feng)(feng)機(ji)送(song)(song)出的風(feng)(feng)(feng)必須通(tong)(tong)過(guo)(guo)主(zhu)干(gan)管(guan)分配到(dao)(dao)支(zhi)管(guan)中(zhong)(zhong)(zhong);在(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)系(xi)(xi)(xi)統中(zhong)(zhong)(zhong),煙(yan)(yan)(yan)氣(qi)由(you)支(zhi)管(guan)到(dao)(dao)主(zhu)干(gan)管(guan)后,進入(ru)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)機(ji)排(pai)(pai)出。當建筑物內發(fa)生火災時(shi)(shi),在(zai)(zai)通(tong)(tong)風(feng)(feng)(feng)、空(kong)(kong)調系(xi)(xi)(xi)統中(zhong)(zhong)(zhong),為(wei)了(le)防(fang)(fang)止火勢(shi)(shi)通(tong)(tong)過(guo)(guo)送(song)(song)風(feng)(feng)(feng)系(xi)(xi)(xi)統蔓延(yan),當送(song)(song)風(feng)(feng)(feng)系(xi)(xi)(xi)統中(zhong)(zhong)(zhong)氣(qi)體溫(wen)(wen)度(du)達到(dao)(dao)70℃時(shi)(shi),防(fang)(fang)火閥(fa)(fa)(fa)機(ji)構上熔(rong)斷(duan)器(qi)(qi)動作,閥(fa)(fa)(fa)門(men)亦(yi)迅速(su)關閥(fa)(fa)(fa),切(qie)斷(duan)煙(yan)(yan)(yan)氣(qi)與火勢(shi)(shi)沿風(feng)(feng)(feng)管(guan)蔓延(yan)的通(tong)(tong)路。同樣,在(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)系(xi)(xi)(xi)統中(zhong)(zhong)(zhong),發(fa)生火災時(shi)(shi),排(pai)(pai)煙(yan)(yan)(yan)閥(fa)(fa)(fa)開啟,進行排(pai)(pai)煙(yan)(yan)(yan),為(wei)了(le)截(jie)斷(duan)高溫(wen)(wen)煙(yan)(yan)(yan)氣(qi)在(zai)(zai)排(pai)(pai)煙(yan)(yan)(yan)管(guan)路中(zhong)(zhong)(zhong)流動,防(fang)(fang)止火勢(shi)(shi)蔓延(yan)到(dao)(dao)另一防(fang)(fang)火分區,當排(pai)(pai)出的煙(yan)(yan)(yan)氣(qi)溫(wen)(wen)度(du)達到(dao)(dao)280℃時(shi)(shi),排(pai)(pai)煙(yan)(yan)(yan)防(fang)(fang)火閥(fa)(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)口上熔(rong)斷(duan)器(qi)(qi)動作,閥(fa)(fa)(fa)門(men)必須自動關閉,阻(zu)止排(pai)(pai)煙(yan)(yan)(yan)。由(you)此可見,防(fang)(fang)火閥(fa)(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)閥(fa)(fa)(fa)做(zuo)到(dao)(dao)了(le)該(gai)通(tong)(tong)則通(tong)(tong),該(gai)斷(duan)則斷(duan)的隔煙(yan)(yan)(yan)阻(zu)火作用。
消(xiao)防(fang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)機(ji)風(feng)(feng)(feng)(feng)量(liang)(liang)與送(song)風(feng)(feng)(feng)(feng)機(ji)風(feng)(feng)(feng)(feng)量(liang)(liang)計(ji)(ji)(ji)算方法是根(gen)據建筑(zhu)面積(ji)來確定的(de),每個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)都需要(yao)獨立計(ji)(ji)(ji)算其(qi)排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang),當(dang)排(pai)(pai)煙(yan)(yan)(yan)風(feng)(feng)(feng)(feng)機(ji)擔負一個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)的(de)時候(hou)可按平(ping)(ping)(ping)方米(mi)面積(ji)不(bu)小(xiao)于(yu)60m3/h計(ji)(ji)(ji)算,擔負多(duo)個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)則按平(ping)(ping)(ping)方米(mi)面積(ji)不(bu)小(xiao)于(yu)120m3/h計(ji)(ji)(ji)算。送(song)風(feng)(feng)(feng)(feng)量(liang)(liang)按排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)的(de)50%計(ji)(ji)(ji)算。每個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)不(bu)應大(da)于(yu)500平(ping)(ping)(ping)方。常見的(de)消(xiao)防(fang)防(fang)排(pai)(pai)煙(yan)(yan)(yan)系統中(zhong),排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)一般根(gen)據大(da)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)面積(ji)500*120等(deng)于(yu)60000立方每小(xiao)時計(ji)(ji)(ji)算,在設計(ji)(ji)(ji)排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)的(de)時候(hou)要(yao)注(zhu)意漏(lou)風(feng)(feng)(feng)(feng)量(liang)(liang),一般可按小(xiao)漏(lou)風(feng)(feng)(feng)(feng)量(liang)(liang)10%計(ji)(ji)(ji)算。例如:當(dang)建筑(zhu)面積(ji)為(wei)1000平(ping)(ping)(ping)方時,需要(yao)設置兩個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu),每個(ge)(ge)防(fang)煙(yan)(yan)(yan)分(fen)(fen)區(qu)的(de)大(da)面積(ji)為(wei)500平(ping)(ping)(ping)方,排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)是500*1203/h=600003/h,再加(jia)上小(xiao)漏(lou)風(feng)(feng)(feng)(feng)量(liang)(liang)10%為(wei)60003/h,總排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)應為(wei)660003/h,其(qi)中(zhong)送(song)風(feng)(feng)(feng)(feng)量(liang)(liang)為(wei)排(pai)(pai)煙(yan)(yan)(yan)量(liang)(liang)的(de)50%應為(wei)330003/h。
排煙防火閥在火災發生時起到重要的保護作用,因此其安全及耐高溫性能要好。那么大家對其還有哪些了解呢?下面就跟隨云南排煙管道簡要了解下其主要功能及相關優勢吧。這款排煙防火閥輸入DC24V電信號,電磁鐵動作、閥門敏捷敞開;手動封閉,手動復位敞開;可輸出閥門開封閉信號及聯鎖操控信號;0°~90°范圍內手動調理葉片敞開度;(調理型)。其排煙管道主要優(you)勢(shi)有:1.漏風量低、氣(qi)密功(gong)能好;2.電動敞開耗(hao)費電流小;3.防腐功(gong)能強,運用壽命(ming)長;4.執(zhi)行機構驅動靈敏(min),反應、聯鎖信(xin)號精確。