4-72離心通風機是一種高效節能的離心式(shi)風(feng)機(ji)(ji)，其機(ji)(ji)翼型葉(xie)片(pian)，曲線型葉(xie)輪前(qian)盤和(he)錐弧型進(jin)口集(ji)流器等(deng)結構，使風(feng)機(ji)(ji)具有優良(liang)的空氣動力性能，在我國經(jing)(jing)濟建設(she)事(shi)業中，歷經(jing)(jing)多年，經(jing)(jing)久(jiu)不(bu)衰。4-72型風(feng)機(ji)(ji)中，NO.2.8-6A風(feng)機(ji)(ji)主要由葉(xie)輪，機(ji)(ji)殼，進(jin)風(feng)口和(he)電動機(ji)(ji)等(deng)部件組(zu)成。NO.8-10C、D風(feng)機(ji)(ji)還有傳動組(zu)和(he)皮帶輪或聯軸器。

4-72離(li)心通風機(ji)的旋(xuan)(xuan)(xuan)轉方(fang)賂(lu)分(fen)為(wei)右旋(xuan)(xuan)(xuan)轉和左(zuo)(zuo)旋(xuan)(xuan)(xuan)轉，從(cong)電動機(ji)一端正視，葉輪按(an)順時(shi)針(zhen)方(fang)向(xiang)旋(xuan)(xuan)(xuan)轉，稱(cheng)為(wei)右旋(xuan)(xuan)(xuan)轉風機(ji)，以(yi)右表示，按(an)逆時(shi)針(zhen)方(fang)向(xiang)旋(xuan)(xuan)(xuan)轉，稱(cheng)為(wei)左(zuo)(zuo)旋(xuan)(xuan)(xuan)轉風機(ji)，以(yi)左(zuo)(zuo)表示，風機(ji)的旋(xuan)(xuan)(xuan)轉方(fang)向(xiang)需在定貨時(shi)注明(ming)。

4-72離心通風(feng)(feng)機(ji)的出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)以機(ji)殼出(chu)(chu)風(feng)(feng)口(kou)角度表示(shi)，NO.2.8-6A在(zai)出(chu)(chu)廠時(shi)(shi)(shi)均做成1種型式，用(yong)戶(hu)可(ke)根據所(suo)需(xu)(xu)要的出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)安(an)裝，定(ding)貨(huo)時(shi)(shi)(shi)不需(xu)(xu)注明。NO2.8出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)調整(zheng)范(fan)(fan)圍0℃-225，間隔45°，NO.3.2-6A出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)調整(zheng)范(fan)(fan)圍為(wei)0°-225°，間隔為(wei)22.5°。NO.8-12出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)為(wei)0°-225°，間隔45°。需(xu)(xu)在(zai)定(ding)貨(huo)時(shi)(shi)(shi)注明。NO.16-20出(chu)(chu)風(feng)(feng)口(kou)位置(zhi)為(wei)3種固定(ding)的角度，0° 90° 180°，安(an)裝時(shi)(shi)(shi)不能(neng)調整(zheng)，需(xu)(xu)在(zai)定(ding)貨(huo)時(shi)(shi)(shi)注明。

4-72離心通風機的傳(chuan)(chuan)動(dong)(dong)(dong)(dong)方式有A B C D 等4種，A式為(wei)(wei)(wei)葉輪(lun)與電動(dong)(dong)(dong)(dong)機直接傳(chuan)(chuan)動(dong)(dong)(dong)(dong)B式為(wei)(wei)(wei)皮帶傳(chuan)(chuan)動(dong)(dong)(dong)(dong)，皮帶輪(lun)在兩軸(zhou)承中間(jian)，C式為(wei)(wei)(wei)皮帶傳(chuan)(chuan)動(dong)(dong)(dong)(dong)，皮帶輪(lun)在軸(zhou)承外側懸臂，D式為(wei)(wei)(wei)葉輪(lun)與電動(dong)(dong)(dong)(dong)機通過聯(lian)軸(zhou)器傳(chuan)(chuan)動(dong)(dong)(dong)(dong)，NO.2.8-5采(cai)用(yong)(yong)A 式傳(chuan)(chuan)動(dong)(dong)(dong)(dong),NO.6采(cai)用(yong)(yong)A.C和D3種方式傳(chuan)(chuan)動(dong)(dong)(dong)(dong)，NO.8-12采(cai)用(yong)(yong)C和D2等種主試傳(chuan)(chuan)動(dong)(dong)(dong)(dong)。

4-72離心通風機適用場合

4-72離心通風機適合(he)于(yu)各(ge)類民用(yong)和(he)工(gong)業建筑(zhu)的(de)送風、排風和(he)一般(ban)通風換(huan)氣(qi)。