1)選擇風機前，應根據脈沖袋式除塵器風機輸送氣體的性質選擇不同用途的風機；

2）在(zai)風機的選擇時，應優先(xian)考慮效率較高、型號較小(xiao)、調節范圍較大的一種；

3)風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)應(ying)避免(mian)并聯(lian)(lian)(lian)(lian)或(huo)串聯(lian)(lian)(lian)(lian)工作。風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)聯(lian)(lian)(lian)(lian)合工作時，應(ying)盡(jin)可能選(xuan)擇相(xiang)同(tong)型號、相(xiang)同(tong)規格的(de)(de)風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)并聯(lian)(lian)(lian)(lian)或(huo)串聯(lian)(lian)(lian)(lian)工作。當(dang)采(cai)用串聯(lian)(lian)(lian)(lian)時，級風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)與級風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)之間應(ying)有的(de)(de)管道連接。風(feng)(feng)(feng)(feng)機是強(qiang)制通風(feng)(feng)(feng)(feng)收(shou)塵系(xi)統(tong)(tong)的(de)(de)一(yi)個(ge)組成(cheng)部分。風(feng)(feng)(feng)(feng)機選(xuan)型時，要有10^~15^風(feng)(feng)(feng)(feng)量(liang)(liang)儲(chu)(chu)備(bei)和(he)(he)15^的(de)(de)風(feng)(feng)(feng)(feng)壓(ya)(ya)儲(chu)(chu)備(bei)。一(yi)般來說，一(yi)個(ge)生(sheng)產(chan)系(xi)統(tong)(tong)選(xuan)擇一(yi)個(ge)風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)。如果風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)的(de)(de)風(feng)(feng)(feng)(feng)量(liang)(liang)和(he)(he)風(feng)(feng)(feng)(feng)壓(ya)(ya)不(bu)能滿足(zu)要求，則采(cai)取(qu)風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)串聯(lian)(lian)(lian)(lian)或(huo)并聯(lian)(lian)(lian)(lian)措施。選(xuan)擇兩(liang)個(ge)相(xiang)同(tong)的(de)(de)風(feng)(feng)(feng)(feng)扇(shan)(shan)(shan)。對(dui)于串聯(lian)(lian)(lian)(lian)系(xi)統(tong)(tong)，根據風(feng)(feng)(feng)(feng)量(liang)(liang)不(bu)變，兩(liang)臺風(feng)(feng)(feng)(feng)機的(de)(de)風(feng)(feng)(feng)(feng)壓(ya)(ya)相(xiang)加〔工作條(tiao)件(jian)點的(de)(de)風(feng)(feng)(feng)(feng)壓(ya)(ya)增加，但不(bu)成(cheng)倍(bei)增加；并聯(lian)(lian)(lian)(lian)系(xi)統(tong)(tong)，根據風(feng)(feng)(feng)(feng)壓(ya)(ya)不(bu)變，兩(liang)臺風(feng)(feng)(feng)(feng)機的(de)(de)風(feng)(feng)(feng)(feng)量(liang)(liang)相(xiang)加（工作條(tiao)件(jian)點的(de)(de)風(feng)(feng)(feng)(feng)量(liang)(liang)不(bu)成(cheng)倍(bei)增加）。

布袋除塵器(qi)的4種形式

（1）上(shang)(shang)進(jin)風式(shi)(shi)和下(xia)進(jin)風式(shi)(shi)上(shang)(shang)進(jin)風式(shi)(shi)是(shi)指袋(dai)式(shi)(shi)除塵器除塵室上(shang)(shang)部(bu)的含(han)(han)塵氣(qi)(qi)流(liu)(liu)入口，氣(qi)(qi)流(liu)(liu)與粒塵沉降方(fang)向(xiang)一(yi)致。下(xia)進(jin)氣(qi)(qi)風式(shi)(shi)是(shi)含(han)(han)塵氣(qi)(qi)流(liu)(liu)入口位(wei)于袋(dai)室下(xia)部(bu)，氣(qi)(qi)流(liu)(liu)與顆粒粉塵沉降方(fang)向(xiang)相反。如(ru)果外部(bu)看是(shi)下(xia)進(jin)風式(shi)(shi)，但袋(dai)室設有導流(liu)(liu)板將(jiang)含(han)(han)塵氣(qi)(qi)流(liu)(liu)引入袋(dai)室上(shang)(shang)部(bu)擴散，應屬于上(shang)(shang)進(jin)風式(shi)(shi)。

（2）圓(yuan)濾(lv)式(shi)(shi)和扁(bian)濾(lv)式(shi)(shi)圓(yuan)濾(lv)式(shi)(shi)是(shi)指(zhi)(zhi)除塵布袋為圓(yuan)筒(tong)形。扁(bian)濾(lv)式(shi)(shi)是(shi)指(zhi)(zhi)濾(lv)袋為平板(信封)梯形、楔(xie)形和其(qi)他非圓(yuan)筒(tong)形狀。

（3）吸入式和壓入式吸入式是指風扇位于砂石除塵器后面，砂石除塵器負壓工作。壓入式是指風機位于布袋除塵器之前，砂石除塵器為正壓工作。

（4）內(nei)濾(lv)(lv)式(shi)和外濾(lv)(lv)式(shi)內(nei)濾(lv)(lv)式(shi)是(shi)指(zhi)含(han)塵氣流(liu)由袋(dai)內(nei)流(liu)向(xiang)袋(dai)外，利用除塵布(bu)袋(dai)內(nei)側捕集粉(fen)塵。外濾(lv)(lv)式(shi)是(shi)指(zhi)含(han)塵氣流(liu)由袋(dai)外流(liu)向(xiang)袋(dai)內(nei)，利用除塵布(bu)袋(dai)外側捕集粉(fen)塵。