4-72離心通風機是一種高效節能的離心式(shi)風(feng)機(ji)(ji)(ji)，其機(ji)(ji)(ji)翼(yi)型(xing)(xing)葉片，曲線型(xing)(xing)葉輪前盤和(he)錐弧(hu)型(xing)(xing)進口集流器等(deng)結構，使(shi)風(feng)機(ji)(ji)(ji)具有優良(liang)的空氣(qi)動(dong)力性能，在我國經濟(ji)建(jian)設事業(ye)中(zhong)，歷經多(duo)年，經久不衰(shuai)。4-72型(xing)(xing)風(feng)機(ji)(ji)(ji)中(zhong)，NO.2.8-6A風(feng)機(ji)(ji)(ji)主要(yao)由葉輪，機(ji)(ji)(ji)殼，進風(feng)口和(he)電動(dong)機(ji)(ji)(ji)等(deng)部件組成(cheng)。NO.8-10C、D風(feng)機(ji)(ji)(ji)還有傳動(dong)組和(he)皮帶輪或聯(lian)軸器。

4-72離心通風(feng)機(ji)(ji)的旋(xuan)轉(zhuan)方賂分為(wei)右(you)旋(xuan)轉(zhuan)和左旋(xuan)轉(zhuan)，從電動(dong)機(ji)(ji)一(yi)端正視，葉輪按(an)順時(shi)針方向(xiang)旋(xuan)轉(zhuan)，稱(cheng)為(wei)右(you)旋(xuan)轉(zhuan)風(feng)機(ji)(ji)，以右(you)表示，按(an)逆時(shi)針方向(xiang)旋(xuan)轉(zhuan)，稱(cheng)為(wei)左旋(xuan)轉(zhuan)風(feng)機(ji)(ji)，以左表示，風(feng)機(ji)(ji)的旋(xuan)轉(zhuan)方向(xiang)需在定貨時(shi)注明。

4-72離心(xin)通風(feng)(feng)(feng)機(ji)的出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)以機(ji)殼出(chu)風(feng)(feng)(feng)口(kou)(kou)角度表(biao)示，NO.2.8-6A在(zai)(zai)出(chu)廠時(shi)(shi)均(jun)做成1種型式，用戶可根據所(suo)需要的出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)安裝，定貨時(shi)(shi)不(bu)需注(zhu)明。NO2.8出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)調(diao)整范圍0℃-225，間隔(ge)45°，NO.3.2-6A出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)調(diao)整范圍為(wei)0°-225°，間隔(ge)為(wei)22.5°。NO.8-12出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)為(wei)0°-225°，間隔(ge)45°。需在(zai)(zai)定貨時(shi)(shi)注(zhu)明。NO.16-20出(chu)風(feng)(feng)(feng)口(kou)(kou)位(wei)置(zhi)(zhi)為(wei)3種固定的角度，0° 90° 180°，安裝時(shi)(shi)不(bu)能調(diao)整，需在(zai)(zai)定貨時(shi)(shi)注(zhu)明。

4-72離心通風(feng)機(ji)的傳(chuan)(chuan)動(dong)(dong)方式(shi)(shi)有A B C D 等4種(zhong)，A式(shi)(shi)為(wei)(wei)(wei)葉輪(lun)與(yu)電(dian)動(dong)(dong)機(ji)直(zhi)接傳(chuan)(chuan)動(dong)(dong)B式(shi)(shi)為(wei)(wei)(wei)皮(pi)(pi)帶傳(chuan)(chuan)動(dong)(dong)，皮(pi)(pi)帶輪(lun)在(zai)兩軸(zhou)承中間，C式(shi)(shi)為(wei)(wei)(wei)皮(pi)(pi)帶傳(chuan)(chuan)動(dong)(dong)，皮(pi)(pi)帶輪(lun)在(zai)軸(zhou)承外側懸臂，D式(shi)(shi)為(wei)(wei)(wei)葉輪(lun)與(yu)電(dian)動(dong)(dong)機(ji)通過(guo)聯(lian)軸(zhou)器傳(chuan)(chuan)動(dong)(dong)，NO.2.8-5采用A 式(shi)(shi)傳(chuan)(chuan)動(dong)(dong),NO.6采用A.C和D3種(zhong)方式(shi)(shi)傳(chuan)(chuan)動(dong)(dong)，NO.8-12采用C和D2等種(zhong)主(zhu)試傳(chuan)(chuan)動(dong)(dong)。

4-72離心通風機適用場合

4-72離(li)心(xin)通風(feng)機適合于各類民用(yong)和(he)工(gong)業建筑的送(song)風(feng)、排風(feng)和(he)一般(ban)通風(feng)換(huan)氣。