江北推薦風機價格

防(fang)(fang)火(huo)(huo)閥：采用(yong)70℃溫度熔(rong)(rong)斷器(qi)自動(dong)(dong)關閉（防(fang)(fang)火(huo)(huo)).可(ke)輸出聯動(dong)(dong)訊(xun)號(hao)，用(yong)于通(tong)風(feng)(feng)空(kong)調系統(tong)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)內，防(fang)(fang)止火(huo)(huo)勢(shi)沿(yan)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)蔓(man)延。排(pai)煙防(fang)(fang)火(huo)(huo)閥：電(dian)訊(xun)號(hao)開(kai)啟(qi)(qi)，手(shou)動(dong)(dong)開(kai)啟(qi)(qi)，輸出動(dong)(dong)作電(dian)訊(xun)號(hao).用(yong)于排(pai)煙風(feng)(feng)機(ji)吸入口管(guan)(guan)(guan)(guan)(guan)道(dao)或排(pai)煙支(zhi)管(guan)(guan)(guan)(guan)(guan)上。采用(yong)280℃溫度熔(rong)(rong)斷器(qi)重(zhong)新(xin)關閉。防(fang)(fang)火(huo)(huo)閥——通(tong)風(feng)(feng)空(kong)調系統(tong)70℃：風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)穿越(yue)防(fang)(fang)火(huo)(huo)分(fen)區(qu)、隔墻(qiang)樓板、水平風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)的(de)水平管(guan)(guan)(guan)(guan)(guan)段(duan)上（系統(tong)獨立(li)設置(zhi)可(ke)不設）、公(gong)共建(jian)筑(zhu)(zhu)豎向排(pai)風(feng)(feng)管(guan)(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan)(guan)；150℃：公(gong)共建(jian)筑(zhu)(zhu)廚房排(pai)油煙管(guan)(guan)(guan)(guan)(guan)支(zhi)管(guan)(guan)(guan)(guan)(guan)；排(pai)煙防(fang)(fang)火(huo)(huo)閥——消防(fang)(fang)排(pai)煙系統(tong)280℃：消防(fang)(fang)排(pai)煙管(guan)(guan)(guan)(guan)(guan)道(dao)；

1. 技(ji)術背景,在(zai)(zai)(zai)焊(han)(han)(han)接接頭(tou)中由于焊(han)(han)(han)接所(suo)引起(qi)的(de)(de)(de)各(ge)種(zhong)裂紋(wen)(wen)，統稱焊(han)(han)(han)接裂紋(wen)(wen)。焊(han)(han)(han)接裂紋(wen)(wen)在(zai)(zai)(zai)焊(han)(han)(han)縫(feng)金(jin)屬與熱影響區中都可能(neng)產(chan)生(sheng)(sheng)(sheng)(sheng)，是(shi)焊(han)(han)(han)接凝固冶(ye)(ye)金(jin)和固相冶(ye)(ye)金(jin)過(guo)程中產(chan)生(sheng)(sheng)(sheng)(sheng)為危險的(de)(de)(de)一種(zhong)缺陷。焊(han)(han)(han)接結(jie)構產(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)破壞事(shi)故大部分都是(shi)焊(han)(han)(han)接裂紋(wen)(wen)所(suo)引起(qi)的(de)(de)(de)。隨著現代工業的(de)(de)(de)發展，焊(han)(han)(han)接結(jie)構也趨向(xiang)大型化、大容量和高參數(shu)發展。有(you)的(de)(de)(de)在(zai)(zai)(zai)低溫(wen)、腐蝕介(jie)質下工作，也有(you)的(de)(de)(de)在(zai)(zai)(zai)高溫(wen)高壓下工作，廣泛都用到各(ge)種(zhong)高合(he)(he)金(jin)鋼、不銹鋼，以(yi)及(ji)種(zhong)種(zhong)合(he)(he)金(jin)材(cai)料。這些材(cai)料往往都對裂紋(wen)(wen)十分敏感，而裂紋(wen)(wen)卻又是(shi)大多重大事(shi)故的(de)(de)(de)誘(you)因，必(bi)須(xu)十分重視。焊(han)(han)(han)接裂紋(wen)(wen)種(zhong)類繁多，產(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)條件和原因各(ge)不相同。有(you)些裂紋(wen)(wen)在(zai)(zai)(zai)焊(han)(han)(han)后立(li)即產(chan)生(sheng)(sheng)(sheng)(sheng)了，有(you)些在(zai)(zai)(zai)焊(han)(han)(han)后延續一定時(shi)間再產(chan)生(sheng)(sheng)(sheng)(sheng)，甚至在(zai)(zai)(zai)使用過(guo)程中，在(zai)(zai)(zai)一定的(de)(de)(de)外界條件誘(you)發下再產(chan)生(sheng)(sheng)(sheng)(sheng)。裂紋(wen)(wen)既出現在(zai)(zai)(zai)焊(han)(han)(han)縫(feng)和熱影響區表面，也產(chan)生(sheng)(sheng)(sheng)(sheng)在(zai)(zai)(zai)其(qi)內部。它對焊(han)(han)(han)接結(jie)構的(de)(de)(de)危害(hai)有(you)以(yi)下幾(ji)點。

1) 送(song)風，包(bao)括通氣(qi)(qi)(qi)，如(ru)(ru)送(song)鮮風和排氣(qi)(qi)(qi)，這(zhe)(zhe)個范圍(wei)很廣，如(ru)(ru)工廠(chang)(chang)車間，生產(chan)(chan)場(chang)地空氣(qi)(qi)(qi)，由于有(you)害氣(qi)(qi)(qi)體產(chan)(chan)生需(xu)要(yao)(yao)排出室(shi)外(wai)，又(you)需(xu)要(yao)(yao)把室(shi)外(wai)空氣(qi)(qi)(qi)輸(shu)(shu)送(song)至室(shi)內。這(zhe)(zhe)時就(jiu)要(yao)(yao)使(shi)用(yong)(yong)流量大(da)而壓力(li)小(xiao)的(de)空氣(qi)(qi)(qi)輸(shu)(shu)送(song)管(guan)道，螺(luo)(luo)(luo)旋(xuan)風管(guan)就(jiu)適用(yong)(yong)，一(yi)般情況下使(shi)用(yong)(yong)鍍鋅鐵管(guan)，有(you)腐蝕性及特(te)別(bie)潮濕場(chang)所使(shi)用(yong)(yong)不(bu)銹鋼管(guan)。2) 送(song)冷風。常見的(de)是(shi)(shi)中央(yang)空調的(de)管(guan)道，這(zhe)(zhe)種管(guan)道需(xu)要(yao)(yao)加(jia)保溫材(cai)料。螺(luo)(luo)(luo)旋(xuan)風管(guan)可內貼保溫材(cai)料，外(wai)表看來美觀。3) 排油(you)煙。飯店、酒(jiu)樓(lou)、賓館的(de)廚房均有(you)大(da)量油(you)煙產(chan)(chan)生，需(xu)要(yao)(yao)排出，使(shi)用(yong)(yong)圓形的(de)風管(guan)就(jiu)是(shi)(shi)油(you)煙囪(cong)。在(zai)這(zhe)(zhe)里，螺(luo)(luo)(luo)旋(xuan)風管(guan)該叫做油(you)煙管(guan)。4) 除(chu)塵。有(you)些(xie)(xie)工廠(chang)(chang)生產(chan)(chan)車間很多塵埃，需(xu)要(yao)(yao)專門(men)的(de)除(chu)塵裝(zhuang)置，其(qi)中量較大(da)的(de)管(guan)道，可使(shi)用(yong)(yong)螺(luo)(luo)(luo)旋(xuan)風管(guan)。5) 散裝(zhuang)物料輸(shu)(shu)送(song)。有(you)些(xie)(xie)工廠(chang)(chang)的(de)生產(chan)(chan)過程中，需(xu)要(yao)(yao)輸(shu)(shu)送(song)松(song)散的(de)顆粒，特(te)別(bie)是(shi)(shi)比重不(bu)大(da)的(de)如(ru)(ru)發泡(pao)塑料粒之類的(de)使(shi)用(yong)(yong)螺(luo)(luo)(luo)旋(xuan)風管(guan)造價低(di)、效果好(hao)。

按照氣流運動來進行風機分類的有：1離心風機,氣流進入旋轉的葉片通道，在風機離心力作用下氣體被壓縮并沿著半徑方向流動。2軸流風機氣流軸向進入風機葉輪后，在旋轉葉片的流道中沿著軸線方向流動的風機。相對于離心風機，軸流風機具有流量大、體積小、壓頭低的特點，推薦風機用于(yu)有灰塵和腐蝕性氣體場合時(shi)需(xu)注意。3斜流(liu)(liu)(liu)(liu)(liu)式(shi)（混流(liu)(liu)(liu)(liu)(liu)式(shi)）風(feng)機(ji)(ji),在風(feng)機(ji)(ji)的(de)葉輪中，氣流(liu)(liu)(liu)(liu)(liu)的(de)方向處于(yu)軸流(liu)(liu)(liu)(liu)(liu)式(shi)之間，近(jin)似沿錐(zhui)流(liu)(liu)(liu)(liu)(liu)動(dong)，故可稱為(wei)斜流(liu)(liu)(liu)(liu)(liu)式(shi)（混流(liu)(liu)(liu)(liu)(liu)式(shi)）風(feng)機(ji)(ji)。這種風(feng)機(ji)(ji)的(de)壓力(li)系(xi)(xi)數比軸流(liu)(liu)(liu)(liu)(liu)式(shi)風(feng)機(ji)(ji)高，而流(liu)(liu)(liu)(liu)(liu)量(liang)系(xi)(xi)數比離心式(shi)風(feng)機(ji)(ji)高。

消防(fang)(fang)(fang)排煙(yan)風(feng)機風(feng)量(liang)(liang)(liang)與送(song)(song)風(feng)機風(feng)量(liang)(liang)(liang)計(ji)算(suan)(suan)方法是根(gen)據建筑(zhu)面(mian)(mian)積來確(que)定(ding)的(de)，每(mei)(mei)個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)都需要(yao)獨立計(ji)算(suan)(suan)其排煙(yan)量(liang)(liang)(liang)，當(dang)排煙(yan)風(feng)機擔負(fu)一(yi)個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)的(de)時(shi)(shi)候(hou)可(ke)按(an)(an)平方米(mi)面(mian)(mian)積不(bu)小(xiao)(xiao)于(yu)60m3／h計(ji)算(suan)(suan)，擔負(fu)多個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)則按(an)(an)平方米(mi)面(mian)(mian)積不(bu)小(xiao)(xiao)于(yu)120m3／h計(ji)算(suan)(suan)。送(song)(song)風(feng)量(liang)(liang)(liang)按(an)(an)排煙(yan)量(liang)(liang)(liang)的(de)50%計(ji)算(suan)(suan)。每(mei)(mei)個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)不(bu)應(ying)大(da)于(yu)500平方。常(chang)見的(de)消防(fang)(fang)(fang)防(fang)(fang)(fang)排煙(yan)系統(tong)中，排煙(yan)量(liang)(liang)(liang)一(yi)般根(gen)據大(da)防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)面(mian)(mian)積500*120等(deng)于(yu)60000立方每(mei)(mei)小(xiao)(xiao)時(shi)(shi)計(ji)算(suan)(suan)，在設(she)(she)計(ji)排煙(yan)量(liang)(liang)(liang)的(de)時(shi)(shi)候(hou)要(yao)注意漏(lou)風(feng)量(liang)(liang)(liang)，一(yi)般可(ke)按(an)(an)小(xiao)(xiao)漏(lou)風(feng)量(liang)(liang)(liang)10%計(ji)算(suan)(suan)。例如(ru)：當(dang)建筑(zhu)面(mian)(mian)積為(wei)1000平方時(shi)(shi)，需要(yao)設(she)(she)置兩個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)，每(mei)(mei)個防(fang)(fang)(fang)煙(yan)分(fen)(fen)區(qu)的(de)大(da)面(mian)(mian)積為(wei)500平方，排煙(yan)量(liang)(liang)(liang)是500*1203／h=600003／h，再加上(shang)小(xiao)(xiao)漏(lou)風(feng)量(liang)(liang)(liang)10%為(wei)60003／h，總排煙(yan)量(liang)(liang)(liang)應(ying)為(wei)660003／h，其中送(song)(song)風(feng)量(liang)(liang)(liang)為(wei)排煙(yan)量(liang)(liang)(liang)的(de)50%應(ying)為(wei)330003／h。

1，通(tong)(tong)(tong)風風管(guan)(guan)(guan)安(an)裝(zhuang)在支(zhi)架上，應(ying)(ying)設托座。2，通(tong)(tong)(tong)風風管(guan)(guan)(guan)如(ru)有穿出(chu)屋(wu)面(mian)外部分，應(ying)(ying)設置防雨罩(zhao)。3，通(tong)(tong)(tong)風風管(guan)(guan)(guan)采(cai)用無法(fa)蘭連(lian)時，接口處應(ying)(ying)嚴密牢固(gu)。通(tong)(tong)(tong)風風管(guan)(guan)(guan)連(lian)接兩平(ping)面(mian)應(ying)(ying)平(ping)直，不得錯位(wei)及扭(niu)曲。4，輸送易(yi)產生冷凝水(shui)的(de)通(tong)(tong)(tong)風風管(guan)(guan)(guan)，安(an)裝(zhuang)應(ying)(ying)設計坡度。通(tong)(tong)(tong)風風管(guan)(guan)(guan)底部不能有縱向的(de)接縫(feng)(feng)， 如(ru)必須有接縫(feng)(feng)，則應(ying)(ying)采(cai)用密封方式。通(tong)(tong)(tong)風管(guan)(guan)(guan)道安(an)裝(zhuang)完(wan)畢后，應(ying)(ying)進(jin)行嚴密性試驗，如(ru)發現(xian)異常(chang)情況，通(tong)(tong)(tong)風管(guan)(guan)(guan)道的(de)制作、安(an)裝(zhuang)、檢驗和試驗，是(shi)一個連(lian)貫的(de)工(gong)程，做到安(an)全適用，經濟(ji)合理，方便施工(gong)，確(que)保通(tong)(tong)(tong)風管(guan)(guan)(guan)道的(de)工(gong)程質(zhi)量。