四川推薦電動防火閥廠家

在空調(diao)送(song)(song)風(feng)系(xi)統(tong)中(zhong)(zhong)，空調(diao)送(song)(song)風(feng)機送(song)(song)出的(de)(de)風(feng)必(bi)須(xu)通(tong)過(guo)主(zhu)干管(guan)分(fen)配到(dao)(dao)支管(guan)中(zhong)(zhong)；在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)系(xi)統(tong)中(zhong)(zhong)，煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)由支管(guan)到(dao)(dao)主(zhu)干管(guan)后，進(jin)入(ru)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)風(feng)機排(pai)(pai)出。當(dang)建筑物內(nei)發(fa)生(sheng)火災時，在通(tong)風(feng)、空調(diao)系(xi)統(tong)中(zhong)(zhong)，為(wei)了防(fang)(fang)(fang)止(zhi)火勢(shi)通(tong)過(guo)送(song)(song)風(feng)系(xi)統(tong)蔓(man)延(yan)，當(dang)送(song)(song)風(feng)系(xi)統(tong)中(zhong)(zhong)氣(qi)(qi)體(ti)溫度達到(dao)(dao)70℃時，防(fang)(fang)(fang)火閥(fa)(fa)機構上(shang)熔(rong)斷(duan)器(qi)動(dong)作，閥(fa)(fa)門亦(yi)迅(xun)速關(guan)閥(fa)(fa)，切斷(duan)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)與火勢(shi)沿風(feng)管(guan)蔓(man)延(yan)的(de)(de)通(tong)路。同樣，在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)系(xi)統(tong)中(zhong)(zhong)，發(fa)生(sheng)火災時，排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)閥(fa)(fa)開啟，進(jin)行排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)，為(wei)了截斷(duan)高溫煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)在排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)管(guan)路中(zhong)(zhong)流動(dong)，防(fang)(fang)(fang)止(zhi)火勢(shi)蔓(man)延(yan)到(dao)(dao)另(ling)一防(fang)(fang)(fang)火分(fen)區，當(dang)排(pai)(pai)出的(de)(de)煙(yan)(yan)(yan)(yan)(yan)氣(qi)(qi)溫度達到(dao)(dao)280℃時，排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)防(fang)(fang)(fang)火閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)口(kou)上(shang)熔(rong)斷(duan)器(qi)動(dong)作，閥(fa)(fa)門必(bi)須(xu)自動(dong)關(guan)閉，阻(zu)止(zhi)排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)。由此可(ke)見(jian)，防(fang)(fang)(fang)火閥(fa)(fa)、排(pai)(pai)煙(yan)(yan)(yan)(yan)(yan)閥(fa)(fa)做到(dao)(dao)了該(gai)通(tong)則(ze)通(tong)，該(gai)斷(duan)則(ze)斷(duan)的(de)(de)隔煙(yan)(yan)(yan)(yan)(yan)阻(zu)火作用。

1、 薄鋼板矩形風管的剛度不夠,表現形式：風管的大邊上下有不同程度的下沉，兩側面小邊稍向外凸出，有明顯的變形。四川電動防火閥對產生的原因分析：① 制作風管的鋼板厚度不符合施工及驗收規范的要求；② 咬口的形式選擇不當；③ 沒有按照《施工及驗收規范》要求，對于邊長≥630 mm或保溫風管≥800 mm，其管長在1 200mm以上，均應采取加固措施。2 、薄鋼板矩形風管扭曲、翹角,表現形式：風管表面不平；對角線不相等；相鄰表面互不垂直；兩相對表面不平行及兩管端平面不平行等。電動防火閥產生的(de)原(yuan)因(yin)分(fen)析(xi)：① 矩形板料下(xia)料后，未對四(si)個角進行(xing)嚴格(ge)的(de)角方(fang)測量(liang)；② 風管(guan)的(de)大邊(bian)或小邊(bian)的(de)兩個相(xiang)(xiang)對面的(de)板料長度(du)和寬(kuan)度(du)不(bu)相(xiang)(xiang)等；③ 風管(guan)的(de)四(si)個角處的(de)咬口寬(kuan)度(du)不(bu)相(xiang)(xiang)等；④ 手工(gong)咬口合縫受力不(bu)均。

消(xiao)聲(sheng)(sheng)器是利用(yong)聲(sheng)(sheng)的(de)(de)(de)吸(xi)收(shou)(shou)、反射、干涉等原(yuan)理(li)，降低通風與空調(diao)系統中(zhong)氣流噪聲(sheng)(sheng)的(de)(de)(de)裝置。根(gen)據消(xiao)聲(sheng)(sheng)原(yuan)理(li)的(de)(de)(de)不同可以分為阻(zu)性(xing)(xing)、抗性(xing)(xing)、共振型(xing)和復合型(xing)等。一(yi)、阻(zu)性(xing)(xing)消(xiao)聲(sheng)(sheng)器,阻(zu)性(xing)(xing)消(xiao)聲(sheng)(sheng)器利用(yong)吸(xi)聲(sheng)(sheng)材(cai)(cai)料的(de)(de)(de)吸(xi)聲(sheng)(sheng)作用(yong)而消(xiao)聲(sheng)(sheng)的(de)(de)(de)。其(qi)構(gou)造是把吸(xi)聲(sheng)(sheng)材(cai)(cai)料固定在(zai)氣流流動的(de)(de)(de)管道內(nei)壁，或按一(yi)定方(fang)式排(pai)列在(zai)管道或殼體內(nei)構(gou)成阻(zu)性(xing)(xing)消(xiao)聲(sheng)(sheng)器，吸(xi)聲(sheng)(sheng)材(cai)(cai)料能(neng)夠(gou)把入(ru)射在(zai)其(qi)上的(de)(de)(de)聲(sheng)(sheng)能(neng)部分地吸(xi)收(shou)(shou)掉。聲(sheng)(sheng)能(neng)之所(suo)以能(neng)被(bei)(bei)吸(xi)收(shou)(shou)，是由于(yu)吸(xi)聲(sheng)(sheng)材(cai)(cai)料的(de)(de)(de)多孔(kong)性(xing)(xing)和松(song)散性(xing)(xing)。當聲(sheng)(sheng)波進入(ru)孔(kong)隙，引起孔(kong)隙中(zhong)的(de)(de)(de)空氣和材(cai)(cai)料產生微小的(de)(de)(de)振動，由于(yu)摩擦和粘滯阻(zu)力(li)。使相當一(yi)部分聲(sheng)(sheng)能(neng)化為熱能(neng)而被(bei)(bei)吸(xi)收(shou)(shou)掉。

按照氣流(liu)(liu)運動來進行(xing)風(feng)(feng)(feng)(feng)(feng)機分(fen)類的(de)(de)有(you)(you)：1離(li)(li)(li)心風(feng)(feng)(feng)(feng)(feng)機,氣流(liu)(liu)進入(ru)旋轉的(de)(de)葉(xie)片通道，在(zai)離(li)(li)(li)心力作用下氣體(ti)被壓縮并沿(yan)著半徑方(fang)向(xiang)流(liu)(liu)動。2軸(zhou)(zhou)(zhou)流(liu)(liu)風(feng)(feng)(feng)(feng)(feng)機氣流(liu)(liu)軸(zhou)(zhou)(zhou)向(xiang)進入(ru)風(feng)(feng)(feng)(feng)(feng)機葉(xie)輪(lun)(lun)后(hou)，在(zai)旋轉葉(xie)片的(de)(de)流(liu)(liu)道中(zhong)沿(yan)著軸(zhou)(zhou)(zhou)線方(fang)向(xiang)流(liu)(liu)動的(de)(de)風(feng)(feng)(feng)(feng)(feng)機。相對于離(li)(li)(li)心風(feng)(feng)(feng)(feng)(feng)機，軸(zhou)(zhou)(zhou)流(liu)(liu)風(feng)(feng)(feng)(feng)(feng)機具有(you)(you)流(liu)(liu)量(liang)大(da)、體(ti)積(ji)小、壓頭低的(de)(de)特點，用于有(you)(you)灰塵和腐(fu)蝕性(xing)氣體(ti)場合時需注意(yi)。3斜流(liu)(liu)式（混流(liu)(liu)式）風(feng)(feng)(feng)(feng)(feng)機,在(zai)風(feng)(feng)(feng)(feng)(feng)機的(de)(de)葉(xie)輪(lun)(lun)中(zhong)，氣流(liu)(liu)的(de)(de)方(fang)向(xiang)處于軸(zhou)(zhou)(zhou)流(liu)(liu)式之間(jian)，近似沿(yan)錐流(liu)(liu)動，故可稱為斜流(liu)(liu)式（混流(liu)(liu)式）風(feng)(feng)(feng)(feng)(feng)機。這種(zhong)風(feng)(feng)(feng)(feng)(feng)機的(de)(de)壓力系(xi)數比(bi)軸(zhou)(zhou)(zhou)流(liu)(liu)式風(feng)(feng)(feng)(feng)(feng)機高，而流(liu)(liu)量(liang)系(xi)數比(bi)離(li)(li)(li)心式風(feng)(feng)(feng)(feng)(feng)機高。

排(pai)煙防火閥(fa)(fa)在火災發生時(shi)起(qi)到(dao)重要(yao)(yao)的保護作(zuo)用(yong)，因(yin)此其安全及耐高溫性能要(yao)(yao)好(hao)。那(nei)么(me)大家對(dui)其還有哪些了解(jie)呢(ni)？下面就跟隨簡要(yao)(yao)了解(jie)下其主(zhu)要(yao)(yao)功(gong)能及相關優(you)勢(shi)(shi)吧。這款排(pai)煙防火閥(fa)(fa)輸(shu)入DC24V電(dian)信(xin)號，電(dian)磁鐵動作(zuo)、閥(fa)(fa)門敏捷敞(chang)開(kai)；手動封(feng)(feng)閉(bi)，手動復位敞(chang)開(kai)；可輸(shu)出閥(fa)(fa)門開(kai)封(feng)(feng)閉(bi)信(xin)號及聯鎖(suo)操控(kong)信(xin)號；0°～90°范圍內手動調(diao)理葉片敞(chang)開(kai)度；（調(diao)理型）。其主(zhu)要(yao)(yao)優(you)勢(shi)(shi)有：1.漏風量低、氣密功(gong)能好(hao)；2.電(dian)動敞(chang)開(kai)耗費(fei)電(dian)流小(xiao)；3.防腐(fu)功(gong)能強，運用(yong)壽命長；4.執行(xing)機構驅動靈敏，反應、聯鎖(suo)信(xin)號精(jing)確(que)。

什么是(shi)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)，常(chang)見(jian)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)有(you)哪些類型，風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)主(zhu)要指中(zhong)央空調(diao)(diao)系(xi)統(tong)的(de)通風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)道，它常(chang)常(chang)被忽視，但卻是(shi)空調(diao)(diao)系(xi)統(tong)的(de)重要組成部(bu)分(fen)(fen)。風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)是(shi)由薄(bo)鋼(gang)板、鋁板、硬(ying)聚(ju)氯乙烯板、玻璃(li)(li)鋼(gang)以(yi)(yi)及(ji)其(qi)它復(fu)合(he)材料等(deng)制成的(de)，用于輸送空氣和空氣混合(he)物的(de)各種管(guan)(guan)(guan)(guan)(guan)(guan)道的(de)總稱。1、按(an)(an)(an)照(zhao)材質可分(fen)(fen)為：金(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、非(fei)金(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)。其(qi)中(zhong)：（1）金(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)又可分(fen)(fen)為：鋼(gang)板風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、鋁板風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、不銹鋼(gang)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng)；（2）非(fei)金(jin)屬風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)可以(yi)(yi)分(fen)(fen)為：硬(ying)聚(ju)氯乙烯風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、有(you)機(ji)玻璃(li)(li)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、無機(ji)玻璃(li)(li)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、玻璃(li)(li)鋼(gang)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)以(yi)(yi)及(ji)其(qi)它復(fu)合(he)材料風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)等(deng)；2、按(an)(an)(an)照(zhao)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)外形(xing)可分(fen)(fen)為：圓(yuan)形(xing)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、矩形(xing)風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)；3、按(an)(an)(an)照(zhao)通風(feng)(feng)(feng)(feng)(feng)(feng)空調(diao)(diao)系(xi)統(tong)工(gong)作壓力可分(fen)(fen)為：高壓風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、中(zhong)壓風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)、低壓風(feng)(feng)(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)三(san)個類別，