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消防排煙風機首先應該滿足溫度和時間的特性,即國家規定280℃/0.5h;其次,在一般環境溫度下,可以保證有效的排煙控制量。此外還要求消防排煙風機能夠進行周期性的實驗,能夠發現其中的不足,并加以改進;可以適用各種通風要求的管道,便于安裝與使用。消防排煙風機的性能優良、耐高溫性能良好、效率高、占地比離心風機少、高溫性能優良。消防排煙風機能在300℃高溫條件下連續運行60分鐘以上,100℃溫度條件下連續20小時不損壞,推薦消防風機應用范圍廣,可根據高級民用建筑的不同要求,采用變速或多速的驅動型式,消防排煙風機廣泛應用于高級民用建筑、烤箱、地下車庫、隧道等場合。消防風機價格安(an)裝(zhuang)(zhuang)方便,可直接(jie)和(he)墻(qiang)壁安(an)裝(zhuang)(zhuang),安(an)裝(zhuang)(zhuang)可采(cai)用垂(chui)直式(shi)、水平式(shi)或吊裝(zhuang)(zhuang)式(shi),很大程度上節(jie)省了占(zhan)地面(mian)積。
消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)是(shi)利(li)用(yong)(yong)(yong)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)吸(xi)(xi)(xi)(xi)收(shou)(shou)、反射、干涉等(deng)原(yuan)(yuan)理,降低(di)通(tong)風與(yu)空調(diao)系統中氣流(liu)噪聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)裝置。根據消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)原(yuan)(yuan)理的(de)(de)(de)(de)不同(tong)可以(yi)(yi)分為(wei)(wei)阻(zu)(zu)性(xing)(xing)、抗性(xing)(xing)、共振(zhen)型和(he)復(fu)合型等(deng)。一、阻(zu)(zu)性(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi),阻(zu)(zu)性(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi)利(li)用(yong)(yong)(yong)吸(xi)(xi)(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)(liao)的(de)(de)(de)(de)吸(xi)(xi)(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)作用(yong)(yong)(yong)而消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)。其構造是(shi)把吸(xi)(xi)(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)(liao)固定在(zai)氣流(liu)流(liu)動的(de)(de)(de)(de)管(guan)道內壁(bi),或(huo)按一定方式排列在(zai)管(guan)道或(huo)殼體內構成阻(zu)(zu)性(xing)(xing)消(xiao)(xiao)聲(sheng)(sheng)(sheng)(sheng)器(qi),吸(xi)(xi)(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)(liao)能(neng)(neng)夠(gou)把入射在(zai)其上的(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)部(bu)分地吸(xi)(xi)(xi)(xi)收(shou)(shou)掉。聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)之(zhi)所以(yi)(yi)能(neng)(neng)被(bei)吸(xi)(xi)(xi)(xi)收(shou)(shou),是(shi)由于(yu)吸(xi)(xi)(xi)(xi)聲(sheng)(sheng)(sheng)(sheng)材(cai)料(liao)(liao)的(de)(de)(de)(de)多孔性(xing)(xing)和(he)松散性(xing)(xing)。當聲(sheng)(sheng)(sheng)(sheng)波進入孔隙,引起孔隙中的(de)(de)(de)(de)空氣和(he)材(cai)料(liao)(liao)產(chan)生微小的(de)(de)(de)(de)振(zhen)動,由于(yu)摩擦和(he)粘滯阻(zu)(zu)力。使相當一部(bu)分聲(sheng)(sheng)(sheng)(sheng)能(neng)(neng)化為(wei)(wei)熱能(neng)(neng)而被(bei)吸(xi)(xi)(xi)(xi)收(shou)(shou)掉。
排(pai)(pai)(pai)煙(yan)(yan)閥(fa)(fa)是否存在(zai)常開的(de)(de)(de)?這里的(de)(de)(de)排(pai)(pai)(pai)煙(yan)(yan)閥(fa)(fa)也就相當于排(pai)(pai)(pai)煙(yan)(yan)口(kou),對(dui)于常見的(de)(de)(de)板式(shi)(shi)排(pai)(pai)(pai)煙(yan)(yan)口(kou)與(yu)多(duo)葉排(pai)(pai)(pai)煙(yan)(yan)口(kou),市場上常見的(de)(de)(de)均為常閉形式(shi)(shi),一(yi)般(ban)不(bu)需要(yao)常開的(de)(de)(de)排(pai)(pai)(pai)煙(yan)(yan)口(kou)。對(dui)于排(pai)(pai)(pai)風(feng)兼排(pai)(pai)(pai)煙(yan)(yan)系統的(de)(de)(de)排(pai)(pai)(pai)煙(yan)(yan)口(kou),可(ke)以采用“單層百葉 + 280 ℃ 電控(kong)排(pai)(pai)(pai)煙(yan)(yan)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)”進行控(kong)制。70 ℃防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)的(de)(de)(de)應(ying)用場合有哪些?防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)應(ying)用場合很多(duo),在(zai)空(kong)調(diao)送回風(feng)干管(guan),通風(feng)風(feng)機進出口(kou),風(feng)井入(ru)口(kou),管(guan)道(dao)穿越防(fang)火(huo)(huo)(huo)(huo)分區 / 變形縫 / 重要(yao)房(fang)間 / 機房(fang) / 火(huo)(huo)(huo)(huo)災危險性大(da)的(de)(de)(de)房(fang)間的(de)(de)(de)隔(ge)墻或樓板,垂直風(feng)管(guan)與(yu)每層水平風(feng)管(guan)連接處。等很多(duo)場合都需要(yao)設置防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)。 空(kong)調(diao)新風(feng)取風(feng)管(guan)是否需要(yao)安(an)(an)裝(zhuang)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)?一(yi)般(ban)不(bu)需要(yao)。特別是如果(guo)回風(feng)、送風(feng)均安(an)(an)裝(zhuang)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)之后,新風(feng)取風(feng)口(kou)就沒有必要(yao)在(zai)安(an)(an)裝(zhuang)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)了。并且一(yi)般(ban)取風(feng)口(kou)位于室外,且按照規范(fan)要(yao)求與(yu)排(pai)(pai)(pai)煙(yan)(yan)口(kou)保持10 m以上的(de)(de)(de)水平距離(li)或3 m以上的(de)(de)(de)垂直距離(li)( 排(pai)(pai)(pai)煙(yan)(yan)口(kou)在(zai)上 ),一(yi)般(ban)煙(yan)(yan)氣不(bu)會從新風(feng)口(kou)進入(ru)空(kong)調(diao),所(suo)以一(yi)般(ban)不(bu)需要(yao)安(an)(an)裝(zhuang)防(fang)火(huo)(huo)(huo)(huo)閥(fa)(fa)。
消(xiao)(xiao)防(fang)排(pai)(pai)(pai)煙風(feng)(feng)機(ji)廠家產品(pin)由多(duo)個配件構成(cheng),比如說葉(xie)(xie)輪(lun)、機(ji)殼(ke)、軸(zhou)承、主軸(zhou)等(deng)(deng)等(deng)(deng)構成(cheng),而不同(tong)的(de)(de)配件也起著不同(tong)的(de)(de)作用。首先對于葉(xie)(xie)輪(lun)而言,一(yi)般采(cai)用優質(zhi)鍍鋅板制作而成(cheng)的(de)(de)葉(xie)(xie)片,通(tong)(tong)(tong)(tong)過傾(qing)斜設(she)計,與拉(la)伸(shen)成(cheng)型的(de)(de)前盤一(yi)起形成(cheng)了(le)更(geng)合理的(de)(de)流道(dao)(dao)(dao),從(cong)而保證了(le)葉(xie)(xie)輪(lun)的(de)(de)高效率。而軸(zhou)承是帶鑄造座(zuo)的(de)(de)外(wai)球面(mian)軸(zhou)承,可以(yi)通(tong)(tong)(tong)(tong)過外(wai)球面(mian)配合調(diao)整(zheng)同(tong)軸(zhou)度(du)的(de)(de)誤差(cha)。主軸(zhou)一(yi)般采(cai)用45#鋼經調(diao)制處理后精車而成(cheng),保證足夠的(de)(de)光潔度(du)和(he)尺寸精。另外(wai)兩層板內部填充消(xiao)(xiao)聲材料,能更(geng)有效隔熱降噪。消(xiao)(xiao)防(fang)排(pai)(pai)(pai)煙風(feng)(feng)機(ji)不能距離隧道(dao)(dao)(dao)的(de)(de)邊壁太近,避免影響通(tong)(tong)(tong)(tong)風(feng)(feng)效果(guo)。通(tong)(tong)(tong)(tong)風(feng)(feng)系(xi)統從(cong)安(an)全(quan)(quan)隧道(dao)(dao)(dao)向(xiang)通(tong)(tong)(tong)(tong)過橫通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)向(xiang)事故隧道(dao)(dao)(dao)方向(xiang)送風(feng)(feng),抑制煙氣(qi)進入(ru)橫通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)及未(wei)發生事故的(de)(de)隧道(dao)(dao)(dao),滿足疏散人員迎著新風(feng)(feng)進入(ru)橫通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)和(he)安(an)全(quan)(quan)隧道(dao)(dao)(dao)內,同(tong)時保證等(deng)(deng)待(dai)區域所需要的(de)(de)新鮮空氣(qi)。充分利用定點救援站處的(de)(de)斜井(jing)和(he)隧道(dao)(dao)(dao)兩端(duan)的(de)(de)消(xiao)(xiao)防(fang)排(pai)(pai)(pai)煙風(feng)(feng)機(ji)作為送入(ru)新風(feng)(feng)和(he)排(pai)(pai)(pai)煙的(de)(de)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao),通(tong)(tong)(tong)(tong)風(feng)(feng)必(bi)須維持(chi)橫通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)口處于正壓狀態,防(fang)止煙氣(qi)流向(xiang)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)內。
什么(me)是風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan),常(chang)(chang)見風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)有(you)哪些類型(xing),風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)主要(yao)指中央(yang)空(kong)調系統(tong)(tong)的(de)(de)通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao),它常(chang)(chang)常(chang)(chang)被忽視,但卻是空(kong)調系統(tong)(tong)的(de)(de)重要(yao)組(zu)成部(bu)分。風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)是由薄鋼(gang)板(ban)(ban)、鋁板(ban)(ban)、硬(ying)聚(ju)氯乙烯板(ban)(ban)、玻璃鋼(gang)以(yi)及(ji)其(qi)它復合(he)材(cai)料等制成的(de)(de),用于輸送空(kong)氣和空(kong)氣混合(he)物的(de)(de)各種(zhong)管(guan)(guan)(guan)(guan)(guan)(guan)道(dao)的(de)(de)總稱(cheng)。1、按(an)照(zhao)材(cai)質可(ke)(ke)分為:金(jin)(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、非(fei)金(jin)(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)。其(qi)中:(1)金(jin)(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)又(you)可(ke)(ke)分為:鋼(gang)板(ban)(ban)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、鋁板(ban)(ban)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、不銹(xiu)鋼(gang)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)等;(2)非(fei)金(jin)(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)可(ke)(ke)以(yi)分為:硬(ying)聚(ju)氯乙烯風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、有(you)機(ji)玻璃風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、無(wu)機(ji)玻璃風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、玻璃鋼(gang)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)以(yi)及(ji)其(qi)它復合(he)材(cai)料風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)等;2、按(an)照(zhao)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)外形可(ke)(ke)分為:圓形風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、矩形風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan);3、按(an)照(zhao)通(tong)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)空(kong)調系統(tong)(tong)工(gong)作(zuo)壓(ya)(ya)(ya)(ya)力(li)可(ke)(ke)分為:高壓(ya)(ya)(ya)(ya)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、中壓(ya)(ya)(ya)(ya)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、低壓(ya)(ya)(ya)(ya)風(feng)(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)三(san)個類別,
1、通(tong)風(feng)機(ji)安(an)(an)(an)裝應符(fu)(fu)合(he)下列規定(ding)(ding)(ding)(1)風(feng)機(ji)試運轉時(shi)(shi),葉輪旋轉方(fang)(fang)向正(zheng)確,經不(bu)(bu)少(shao)于2H運轉后,滑動軸承溫(wen)升(sheng)不(bu)(bu)超(chao)過(guo)(guo)35度(du),高溫(wen)度(du)不(bu)(bu)超(chao)過(guo)(guo)70度(du);滾動軸承溫(wen)升(sheng)不(bu)(bu)超(chao)過(guo)(guo)40度(du),高溫(wen)度(du)不(bu)(bu)超(chao)過(guo)(guo)80度(du)。(2)離心風(feng)機(ji)與減(jian)震臺座(zuo)接(jie)(jie)觸緊密(mi),螺(luo)栓擰緊,并有防松裝置(zhi)(zhi)。(3)管(guan)道風(feng)機(ji)采(cai)用減(jian)震吊架(jia)安(an)(an)(an)裝時(shi)(shi),風(feng)機(ji)與減(jian)震吊架(jia)連(lian)接(jie)(jie)緊密(mi),牢(lao)固(gu)可靠;采(cai)用支拖(tuo)架(jia)安(an)(an)(an)裝時(shi)(shi),風(feng)機(ji)與減(jian)震器(qi)(qi)(qi)(qi)(qi)(qi)及支架(jia)、托架(jia)連(lian)接(jie)(jie)緊密(mi),穩固(gu)可靠。2、過(guo)(guo)濾(lv)器(qi)(qi)(qi)(qi)(qi)(qi)、紙(zhi)除塵器(qi)(qi)(qi)(qi)(qi)(qi)、過(guo)(guo)濾(lv)器(qi)(qi)(qi)(qi)(qi)(qi)吸收器(qi)(qi)(qi)(qi)(qi)(qi)安(an)(an)(an)裝應符(fu)(fu)合(he)下列規定(ding)(ding)(ding)(1)各種設(she)備(bei)(bei)的型號、規格、額定(ding)(ding)(ding)風(feng)量必須符(fu)(fu)合(he)設(she)計要求。(2)各種設(she)備(bei)(bei)的安(an)(an)(an)裝方(fang)(fang)向必須正(zheng)確。(3)設(she)備(bei)(bei)與管(guan)路(lu)連(lian)接(jie)(jie)時(shi)(shi),宜采(cai)用整體性的橡膠軟管(guan)接(jie)(jie)頭(tou),并不(bu)(bu)得漏(lou)氣;固(gu)定(ding)(ding)(ding)支架(jia)應平(ping)正(zheng)穩定(ding)(ding)(ding)。(4)過(guo)(guo)濾(lv)器(qi)(qi)(qi)(qi)(qi)(qi)的安(an)(an)(an)裝應固(gu)定(ding)(ding)(ding)牢(lao)固(gu),過(guo)(guo)濾(lv)器(qi)(qi)(qi)(qi)(qi)(qi)與框架(jia)、框架(jia)與維(wei)護結構(gou)之間(jian)無明(ming)顯(xian)縫(feng)隙。(5)紙(zhi)除塵器(qi)(qi)(qi)(qi)(qi)(qi)和過(guo)(guo)濾(lv)器(qi)(qi)(qi)(qi)(qi)(qi)的安(an)(an)(an)裝,應固(gu)定(ding)(ding)(ding)牢(lao)固(gu),位置(zhi)(zhi)準確,連(lian)接(jie)(jie)嚴密(mi)。