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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,在不銹鋼通風管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,推薦不銹鋼通風管用于有灰塵和腐蝕性氣體(ti)場合時(shi)需注意。3斜(xie)流(liu)式(shi)(shi)(shi)(shi)(混流(liu)式(shi)(shi)(shi)(shi))風(feng)(feng)(feng)機,在(zai)風(feng)(feng)(feng)機的葉輪(lun)中,氣流(liu)的方向處于軸流(liu)式(shi)(shi)(shi)(shi)之間,近似(si)沿錐流(liu)動,故可稱(cheng)為斜(xie)流(liu)式(shi)(shi)(shi)(shi)(混流(liu)式(shi)(shi)(shi)(shi))風(feng)(feng)(feng)機。這種風(feng)(feng)(feng)機的壓力系數(shu)比(bi)軸流(liu)式(shi)(shi)(shi)(shi)風(feng)(feng)(feng)機高(gao),而(er)流(liu)量(liang)系數(shu)比(bi)離心式(shi)(shi)(shi)(shi)風(feng)(feng)(feng)機高(gao)。
消(xiao)(xiao)防排煙(yan)風(feng)機(ji)廠家產品由(you)多(duo)個配(pei)件構(gou)成,比如說葉輪、機(ji)殼、軸(zhou)(zhou)承、主(zhu)軸(zhou)(zhou)等等構(gou)成,而(er)不同的(de)(de)(de)(de)配(pei)件也起著不同的(de)(de)(de)(de)作(zuo)用(yong)。首先對于葉輪而(er)言,一般(ban)采(cai)用(yong)優質鍍(du)鋅板制(zhi)作(zuo)而(er)成的(de)(de)(de)(de)葉片,通(tong)(tong)(tong)(tong)過傾斜(xie)設計,與(yu)拉(la)伸(shen)成型的(de)(de)(de)(de)前盤一起形成了更合理(li)的(de)(de)(de)(de)流(liu)道(dao)(dao)(dao),從(cong)而(er)保(bao)證(zheng)了葉輪的(de)(de)(de)(de)高效(xiao)率。而(er)軸(zhou)(zhou)承是(shi)帶鑄(zhu)造(zao)座的(de)(de)(de)(de)外球面軸(zhou)(zhou)承,可以通(tong)(tong)(tong)(tong)過外球面配(pei)合調(diao)整同軸(zhou)(zhou)度的(de)(de)(de)(de)誤差(cha)。主(zhu)軸(zhou)(zhou)一般(ban)采(cai)用(yong)45#鋼經(jing)調(diao)制(zhi)處(chu)理(li)后(hou)精(jing)車而(er)成,保(bao)證(zheng)足夠的(de)(de)(de)(de)光潔度和(he)尺寸精(jing)。另(ling)外兩層板內部填充(chong)(chong)消(xiao)(xiao)聲材料,能(neng)更有效(xiao)隔(ge)熱(re)降(jiang)噪。消(xiao)(xiao)防排煙(yan)風(feng)機(ji)不能(neng)距(ju)離隧道(dao)(dao)(dao)的(de)(de)(de)(de)邊(bian)壁太近,避免影響(xiang)通(tong)(tong)(tong)(tong)風(feng)效(xiao)果。通(tong)(tong)(tong)(tong)風(feng)系統從(cong)安(an)全隧道(dao)(dao)(dao)向通(tong)(tong)(tong)(tong)過橫(heng)(heng)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)向事(shi)故隧道(dao)(dao)(dao)方向送風(feng),抑制(zhi)煙(yan)氣進(jin)入(ru)(ru)橫(heng)(heng)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)及未發生事(shi)故的(de)(de)(de)(de)隧道(dao)(dao)(dao),滿足疏散(san)人員迎(ying)著新風(feng)進(jin)入(ru)(ru)橫(heng)(heng)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)和(he)安(an)全隧道(dao)(dao)(dao)內,同時保(bao)證(zheng)等待(dai)區(qu)域(yu)所需要的(de)(de)(de)(de)新鮮空氣。充(chong)(chong)分利用(yong)定(ding)點救援站處(chu)的(de)(de)(de)(de)斜(xie)井和(he)隧道(dao)(dao)(dao)兩端(duan)的(de)(de)(de)(de)消(xiao)(xiao)防排煙(yan)風(feng)機(ji)作(zuo)為(wei)送入(ru)(ru)新風(feng)和(he)排煙(yan)的(de)(de)(de)(de)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao),通(tong)(tong)(tong)(tong)風(feng)必須維持橫(heng)(heng)通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)口處(chu)于正壓狀(zhuang)態,防止煙(yan)氣流(liu)向通(tong)(tong)(tong)(tong)道(dao)(dao)(dao)內。
鑒于軸流(liu)(liu)風(feng)(feng)機(ji)有紊(wen)流(liu)(liu)區的(de)(de)性能特點(dian),在(zai)(zai)(zai)選型和使(shi)(shi)用(yong)時,需要(yao)注(zhu)意以下兩(liang)點(dian):建議使(shi)(shi)用(yong)在(zai)(zai)(zai)空(kong)曠環境(jing)中,軸流(liu)(liu)風(feng)(feng)機(ji)的(de)(de)輸入(ru)功率隨(sui)系(xi)統(tong)靜(jing)壓的(de)(de)增(zeng)大而增(zeng)大,而在(zai)(zai)(zai)紊(wen)流(liu)(liu)區,輸入(ru)功率的(de)(de)增(zeng)大幅(fu)度會(hui)更大。因此,軸流(liu)(liu)風(feng)(feng)機(ji)一(yi)般多應用(yong)在(zai)(zai)(zai)有較(jiao)(jiao)大空(kong)曠環境(jing)的(de)(de)場合下,可以使(shi)(shi)其工(gong)(gong)作在(zai)(zai)(zai)靜(jing)壓較(jiao)(jiao)低的(de)(de)環境(jing)下,降低功耗,保證穩定(ding)(ding)性和壽(shou)命。定(ding)(ding)期清理風(feng)(feng)道(dao),當軸流(liu)(liu)風(feng)(feng)機(ji)應用(yong)在(zai)(zai)(zai)較(jiao)(jiao)為(wei)封閉的(de)(de)風(feng)(feng)道(dao)系(xi)統(tong)中時,長(chang)期運行后風(feng)(feng)道(dao)中的(de)(de)積(ji)灰(hui)、垃圾逐(zhu)漸(jian)(jian)變多,會(hui)使(shi)(shi)風(feng)(feng)道(dao)內的(de)(de)靜(jing)壓逐(zhu)漸(jian)(jian)增(zeng)加,使(shi)(shi)得風(feng)(feng)機(ji)的(de)(de)運行工(gong)(gong)況點(dian)逐(zhu)漸(jian)(jian)左(zuo)移。這不僅(jin)會(hui)降低風(feng)(feng)機(ji)性能,更重要(yao)的(de)(de)是會(hui)增(zeng)加軸流(liu)(liu)風(feng)(feng)機(ji)進入(ru)紊(wen)流(liu)(liu)區的(de)(de)風(feng)(feng)險。因此必須要(yao)定(ding)(ding)期清理風(feng)(feng)道(dao),保證風(feng)(feng)機(ji)工(gong)(gong)況點(dian)不產(chan)生較(jiao)(jiao)大偏(pian)移。
風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)主要指(zhi)中央空調(diao)系(xi)統(tong)的(de)(de)(de)通(tong)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)道,它常(chang)常(chang)被(bei)忽視,但卻(que)是空調(diao)系(xi)統(tong)的(de)(de)(de)重(zhong)要組成部分,目前常(chang)見(jian)的(de)(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)主要有四種:1)鍍鋅(xin)薄鋼(gang)板風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan);2)無(wu)機玻(bo)璃(li)鋼(gang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan);3)復合玻(bo)纖板風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan);4)纖維織物風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)。鍍鋅(xin)薄鋼(gang)板風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan):早使用的(de)(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan),采用鍍鋅(xin)薄鋼(gang)板制(zhi)作(zuo),適合含濕量(liang)小的(de)(de)(de)一般性氣(qi)體的(de)(de)(de)輸送,有易生銹(xiu),無(wu)保溫和消聲功能,制(zhi)作(zuo)安(an)裝周期長的(de)(de)(de)特點。無(wu)機玻(bo)璃(li)鋼(gang)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan):較新的(de)(de)(de)風(feng)(feng)(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)類(lei)型,采用玻(bo)璃(li)纖維增強(qiang)無(wu)機材(cai)料制(zhi)作(zuo),遇火不燃、耐腐蝕、份(fen)量(liang)重(zhong),硬(ying)度大但較脆,受自重(zhong)影響(xiang)易變(bian)形酥裂(lie),無(wu)保溫和消聲性能,制(zhi)作(zuo)安(an)裝周期長。
風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)是依靠輸(shu)入的機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械能(neng),提高(gao)氣(qi)(qi)(qi)體壓(ya)(ya)(ya)(ya)力(li)(li)并(bing)排(pai)送氣(qi)(qi)(qi)體的機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械,它是一種(zhong)從動的流(liu)體機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械。風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)是我國對(dui)氣(qi)(qi)(qi)體壓(ya)(ya)(ya)(ya)縮和(he)(he)(he)氣(qi)(qi)(qi)體輸(shu)送機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械的習慣簡稱,通(tong)(tong)常所(suo)說的風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)包(bao)括(kuo)通(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),鼓風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),壓(ya)(ya)(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)(ji)(ji)以(yi)及羅茨(ci)鼓風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),離心(xin)式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),回轉(zhuan)(zhuan)式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),水環式(shi)風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji),但是不包(bao)括(kuo)活(huo)塞壓(ya)(ya)(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)(ji)(ji)等容積式(shi)鼓風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)和(he)(he)(he)壓(ya)(ya)(ya)(ya)縮機(ji)(ji)(ji)(ji)(ji)(ji)(ji)。氣(qi)(qi)(qi)體壓(ya)(ya)(ya)(ya)縮和(he)(he)(he)氣(qi)(qi)(qi)體輸(shu)送機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械是把旋轉(zhuan)(zhuan)的機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械轉(zhuan)(zhuan)換為氣(qi)(qi)(qi)體壓(ya)(ya)(ya)(ya)力(li)(li)能(neng)和(he)(he)(he)動能(neng),并(bing)將(jiang)氣(qi)(qi)(qi)體輸(shu)送出去的機(ji)(ji)(ji)(ji)(ji)(ji)(ji)械。風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)主要由(you)風(feng)(feng)(feng)(feng)葉、百葉窗、開(kai)(kai)(kai)(kai)窗機(ji)(ji)(ji)(ji)(ji)(ji)(ji)構(gou)(gou)、電(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)、皮帶輪、進風(feng)(feng)(feng)(feng)罩、內框架、機(ji)(ji)(ji)(ji)(ji)(ji)(ji)殼、安全網等部件組成(cheng)。開(kai)(kai)(kai)(kai)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)時由(you)電(dian)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)驅(qu)動風(feng)(feng)(feng)(feng)葉旋轉(zhuan)(zhuan),并(bing)使開(kai)(kai)(kai)(kai)窗機(ji)(ji)(ji)(ji)(ji)(ji)(ji)構(gou)(gou)打開(kai)(kai)(kai)(kai)百葉窗排(pai)風(feng)(feng)(feng)(feng)。停機(ji)(ji)(ji)(ji)(ji)(ji)(ji)時百葉窗自動關閉。風(feng)(feng)(feng)(feng)機(ji)(ji)(ji)(ji)(ji)(ji)(ji)廣(guang)泛(fan)用于工廠(chang)、礦(kuang)井、隧道、冷卻塔、車輛、船舶和(he)(he)(he)建(jian)筑(zhu)物的通(tong)(tong)風(feng)(feng)(feng)(feng)、排(pai)塵和(he)(he)(he)冷卻;鍋爐和(he)(he)(he)工業爐窯的通(tong)(tong)風(feng)(feng)(feng)(feng)和(he)(he)(he)引風(feng)(feng)(feng)(feng);空氣(qi)(qi)(qi)調節設備和(he)(he)(he)家用電(dian)器設備中的冷卻和(he)(he)(he)通(tong)(tong)風(feng)(feng)(feng)(feng);谷物的烘干和(he)(he)(he)選送;風(feng)(feng)(feng)(feng)洞風(feng)(feng)(feng)(feng)源和(he)(he)(he)氣(qi)(qi)(qi)墊船的充氣(qi)(qi)(qi)和(he)(he)(he)推進等。