我國通風機行業(ye)是在(zai)(zai)引進、消(xiao)化、吸收國外技術(shu)的(de)(de)基(ji)礎(chu)上發展起來(lai)的(de)(de),經過多年的(de)(de)技術(shu)發展與(yu)改(gai)造(zao)(zao),行業(ye)中領先企業(ye)的(de)(de)技術(shu)水平,包括加工(gong)制造(zao)(zao)技術(shu)、產(chan)品(pin)檢測技術(shu)、設(she)備(bei)成(cheng)套(tao)水平、系統設(she)計(ji)能(neng)(neng)力(li)有了(le)較大(da)提(ti)高(gao)(gao),高(gao)(gao)壓不(bu)銹鋼風(feng)(feng)機一些企業(ye)已經具備(bei)了(le)自主設(she)計(ji)、開發與(yu)集成(cheng)能(neng)(neng)力(li),競爭(zheng)能(neng)(neng)力(li)與(yu)市場適應(ying)力(li)大(da)幅度(du)提(ti)高(gao)(gao)。隨著我國步(bu)入新型(xing)工(gong)業(ye)化發展階段(duan)(duan),基(ji)礎(chu)工(gong)業(ye)朝裝備(bei)大(da)型(xing)化、環(huan)保節能(neng)(neng)方(fang)(fang)向(xiang)(xiang)(xiang)發展,與(yu)之相適應(ying),通風(feng)(feng)機行業(ye)在(zai)(zai)自身(shen)技術(shu)水平不(bu)斷提(ti)升(sheng)的(de)(de)背景下(xia)逐步(bu)進入升(sheng)級換代階段(duan)(duan),產(chan)品(pin)也(ye)在(zai)(zai)向(xiang)(xiang)(xiang)制造(zao)(zao)集成(cheng)一體(ti)化、高(gao)(gao)效節能(neng)(neng)化、 鈦材風(feng)(feng)機設(she)計(ji)生產(chan)計(ji)算機化和銷售(shou)全球化方(fang)(fang)向(xiang)(xiang)(xiang)發展,同時(shi)用(yong)戶對通風(feng)(feng)機的(de)(de)需求正(zheng)在(zai)(zai)從產(chan)品(pin)導向(xiang)(xiang)(xiang)轉(zhuan)為全生命(ming)周期服務導向(xiang)(xiang)(xiang)。
單級高速(su)通(tong)(tong)風機與多級低(di)速(su)通(tong)(tong)風機都(dou)屬于(yu)通(tong)(tong)風機。通(tong)(tong)風機是根(gen)據動能轉(zhuan)換為勢(shi)能的原理,利用高速(su)旋轉(zhuan)的葉輪將氣體加速(su)后然(ran)后減速(su)、改變流(liu)向,使動能轉(zhuan)換為勢(shi)能。通(tong)(tong)風機流(liu)量(liang)調(diao)節(jie)(jie)方(fang)便,噪音低(di),壓(ya)(ya)力(li)變化時,流(liu)量(liang)變化大,壓(ya)(ya)力(li)和(he)流(liu)量(liang)都(dou)可以在(zai)一定(ding)(ding)范(fan)圍內(nei)調(diao)節(jie)(jie)。通(tong)(tong)風機一般采用進口節(jie)(jie)流(liu)調(diao)節(jie)(jie)流(liu)量(liang)與壓(ya)(ya)力(li),使風機在(zai)較低(di)的功率(lv)下運行,而(er)不需(xu)要放風調(diao)節(jie)(jie),而(er)且能保持同額定(ding)(ding)工況(kuang)基本相同的高效(xiao)率(lv),因此,它適用于(yu)壓(ya)(ya)力(li)流(liu)量(liang)都(dou)不穩(wen)定(ding)(ding)的情(qing)況(kuang)。
通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的工(gong)作原理與(yu)透平壓(ya)縮(suo)機(ji)(ji)(ji)(ji)基本(ben)相同,只是(shi)(shi)由(you)于氣體(ti)流速較(jiao)低,壓(ya)力變(bian)化(hua)不(bu)(bu)大,一般不(bu)(bu)需要考慮氣體(ti)比容(rong)的變(bian)化(hua),即把氣體(ti)作為(wei)(wei)不(bu)(bu)可壓(ya)縮(suo)流體(ti)處(chu)理。通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)與(yu)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的關(guan)系:風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)是(shi)(shi)我國(guo)對氣體(ti)壓(ya)縮(suo)和氣體(ti)輸送機(ji)(ji)(ji)(ji)械的習慣簡(jian)稱,通(tong)(tong)(tong)(tong)常所說的風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)包(bao)括(kuo)通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji),鼓(gu)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji),壓(ya)縮(suo)機(ji)(ji)(ji)(ji)以及羅茨鼓(gu)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji),但(dan)是(shi)(shi)不(bu)(bu)包(bao)括(kuo)活塞壓(ya)縮(suo)機(ji)(ji)(ji)(ji)等(deng)容(rong)積式鼓(gu)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)和壓(ya)縮(suo)機(ji)(ji)(ji)(ji)。通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)是(shi)(shi)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的一種(zhong)產品類型(xing),但(dan)人們(men)通(tong)(tong)(tong)(tong)常把通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)簡(jian)叫為(wei)(wei)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji),既通(tong)(tong)(tong)(tong)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)是(shi)(shi)風(feng)(feng)(feng)機(ji)(ji)(ji)(ji)的另(ling)外一種(zhong)叫法。
通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)廣泛用(yong)于工(gong)廠(chang)、礦井、隧道(dao)、冷卻塔、車(che)輛、船舶和(he)(he)(he)建筑物(wu)(wu)的(de)(de)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)、排(pai)塵和(he)(he)(he)冷卻;鍋爐和(he)(he)(he)工(gong)業(ye)爐窯的(de)(de)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)和(he)(he)(he)引風(feng)(feng)(feng)(feng);空氣(qi)(qi)(qi)(qi)調節(jie)設(she)備和(he)(he)(he)家用(yong)電器設(she)備中的(de)(de)冷卻和(he)(he)(he)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng);谷物(wu)(wu)的(de)(de)烘(hong)干(gan)和(he)(he)(he)選送;風(feng)(feng)(feng)(feng)洞(dong)風(feng)(feng)(feng)(feng)源和(he)(he)(he)氣(qi)(qi)(qi)(qi)墊船的(de)(de)充氣(qi)(qi)(qi)(qi)和(he)(he)(he)推進等。通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)的(de)(de)工(gong)作(zuo)(zuo)原理(li)(li)與(yu)透平壓縮(suo)機(ji)(ji)基(ji)本相同,只是由(you)于氣(qi)(qi)(qi)(qi)體(ti)(ti)流(liu)(liu)速較低,壓力變(bian)化不(bu)大,一般不(bu)需要(yao)(yao)考慮氣(qi)(qi)(qi)(qi)體(ti)(ti)比容的(de)(de)變(bian)化,即(ji)把氣(qi)(qi)(qi)(qi)體(ti)(ti)作(zuo)(zuo)為(wei)不(bu)可壓縮(suo)流(liu)(liu)體(ti)(ti)處理(li)(li)。通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)已(yi)有悠久的(de)(de)歷(li)史(shi)。中國在(zai)(zai)公(gong)元前許多年(nian)就已(yi)制造出簡單的(de)(de)木制礱谷風(feng)(feng)(feng)(feng)車(che),它(ta)的(de)(de)作(zuo)(zuo)用(yong)原理(li)(li)與(yu)現(xian)代離心(xin)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)基(ji)本相同。離心(xin)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)工(gong)作(zuo)(zuo)時,動(dong)(dong)力機(ji)(ji)(主要(yao)(yao)是電動(dong)(dong)機(ji)(ji))驅(qu)動(dong)(dong)葉輪(lun)在(zai)(zai)蝸形(xing)機(ji)(ji)殼(ke)內旋轉,空氣(qi)(qi)(qi)(qi)經吸氣(qi)(qi)(qi)(qi)口從葉輪(lun)中心(xin)處吸入。由(you)于葉片對氣(qi)(qi)(qi)(qi)體(ti)(ti)的(de)(de)動(dong)(dong)力作(zuo)(zuo)用(yong),氣(qi)(qi)(qi)(qi)體(ti)(ti)壓力和(he)(he)(he)速度得以提高,并(bing)在(zai)(zai)離心(xin)力作(zuo)(zuo)用(yong)下沿(yan)著葉道(dao)甩向(xiang)機(ji)(ji)殼(ke),從排(pai)氣(qi)(qi)(qi)(qi)口排(pai)出。因氣(qi)(qi)(qi)(qi)體(ti)(ti)在(zai)(zai)葉輪(lun)內的(de)(de)流(liu)(liu)動(dong)(dong)主要(yao)(yao)是在(zai)(zai)徑向(xiang)平面內,故(gu)又稱徑流(liu)(liu)通(tong)(tong)(tong)風(feng)(feng)(feng)(feng)機(ji)(ji)。
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