XWD型臥式靜電除塵器是眾多除塵器當中的一種，臥式靜電除塵器是以靜電凈化法來收捕廢氣中的粉塵的設備，其主要是讓含塵氣體進人氣刺叭時，含塵氣體受到氣流分布板以及折流板的調整后，使氣流能較均勻地進人電場。

臥式靜(jing)電(dian)(dian)除塵(chen)(chen)器(qi)是以靜(jing)電(dian)(dian)凈(jing)化(hua)法來(lai)收捕廢(fei)氣中的(de)(de)粉塵(chen)(chen)，它(ta)的(de)(de)凈(jing)化(hua)工(gong)作(zuo)上(shang)(shang)要是依靠電(dian)(dian)暈極(ji)和(he)沉淀兩個系(xi)統(tong)來(lai)完(wan)成的(de)(de)，當含(han)塵(chen)(chen)氣體進(jin)(jin)人(ren)氣刺叭時，含(han)塵(chen)(chen)氣體受到(dao)氣流(liu)分布(bu)板以及折流(liu)板的(de)(de)調整后，使氣流(liu)能較均勻地進(jin)(jin)人(ren)電(dian)(dian)場(chang)。在(zai)橫斷面擴大(da)的(de)(de)作(zuo)用(yong)下，氣流(liu)速(su)度(du)迅速(su)降(jiang)低，其中有些(xie)(xie)較重的(de)(de)塵(chen)(chen)粒(li)(li)便(bian)失去速(su)度(du)而沉降(jiang)下來(lai)。進(jin)(jin)人(ren)電(dian)(dian)場(chang)的(de)(de)含(han)塵(chen)(chen)氣體由于(yu)電(dian)(dian)暈極(ji)通人(ren)高(gao)壓直流(liu)電(dian)(dian)，則在(zai)電(dian)(dian)暈極(ji)附近產生電(dian)(dian)暈現象(xiang)，使氣體電(dian)(dian)離，電(dian)(dian)離后的(de)(de)氣體中存在(zai)大(da)量(liang)的(de)(de)電(dian)(dian)子(zi)和(he)離子(zi)，這些(xie)(xie)電(dian)(dian)子(zi)和(he)離子(zi)與進(jin)(jin)人(ren)電(dian)(dian)場(chang)的(de)(de)粉塵(chen)(chen)結合起(qi)來(lai)，使塵(chen)(chen)粒(li)(li)帶電(dian)(dian)，帶電(dian)(dian)塵(chen)(chen)粒(li)(li)在(zai)電(dian)(dian)場(chang)力的(de)(de)作(zuo)用(yong)下趨向(xiang)本設(she)備(bei)陽極(ji)(正極(ji)、本設(she)備(bei)采(cai)用(yong)負高(gao)壓制)和(he)陰極(ji)(負極(ji)) ， 釋放(fang)出電(dian)(dian)子(zi)分別沉積(ji)在(zai)相應的(de)(de)電(dian)(dian)極(ji)上(shang)(shang)，通過設(she)備(bei)陰陽極(ji)振(zhen)打(da)系(xi)統(tong)的(de)(de)振(zhen)打(da)，使沉積(ji)在(zai)陰陽電(dian)(dian)極(ji)上(shang)(shang)的(de)(de)粉塵(chen)(chen)振(zhen)落，進(jin)(jin)人(ren)集灰斗(dou) 通過排灰裝置放(fang)出，回收有物料，被)凈(jing)化(hua)的(de)(de)氣體排入大(da)氣。

工作(zuo)原(yuan)理

靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)工(gong)作原理(li)是利(li)用高壓電(dian)(dian)(dian)(dian)(dian)場使煙(yan)氣發生電(dian)(dian)(dian)(dian)(dian)離，氣流(liu)中的(de)粉(fen)塵(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)(dian)場作用下(xia)與氣流(liu)分(fen)離。負極由不同斷面形狀的(de)金屬導線制成(cheng)，叫(jiao)放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極。正(zheng)極由不同幾何(he)形狀的(de)金屬板(ban)制成(cheng)，叫(jiao)集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極。靜電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)性(xing)能受粉(fen)塵(chen)(chen)性(xing)質、設(she)備(bei)構造和(he)煙(yan)氣流(liu)速等(deng)三個(ge)因素的(de)影(ying)(ying)響。粉(fen)塵(chen)(chen)的(de)比電(dian)(dian)(dian)(dian)(dian)阻是評價導電(dian)(dian)(dian)(dian)(dian)性(xing)的(de)指標，它對除塵(chen)(chen)效率(lv)有直接的(de)影(ying)(ying)響。比電(dian)(dian)(dian)(dian)(dian)阻過(guo)低，塵(chen)(chen)粒(li)難以保持在集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極上，致使其重返氣流(liu)。比電(dian)(dian)(dian)(dian)(dian)阻過(guo)高，到達集塵(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極的(de)塵(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)(dian)荷(he)不易放出，在塵(chen)(chen)層之(zhi)間形成(cheng)電(dian)(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放電(dian)(dian)(dian)(dian)(dian)現象。這些情況都會造成(cheng)除塵(chen)(chen)效率(lv)下(xia)降。

電(dian)(dian)除(chu)塵(chen)器的基本原(yuan)理(li)是利用電(dian)(dian)力捕集(ji)煙氣中的粉(fen)(fen)塵(chen)，主要(yao)包括(kuo)以下四(si)個相互有關的物(wu)理(li)過程: (1) 氣體的電(dian)(dian)離。(2) 粉(fen)(fen)塵(chen)的荷電(dian)(dian)。(3) 荷電(dian)(dian)粉(fen)(fen)塵(chen)向電(dian)(dian)極移動。(4) 荷電(dian)(dian)粉(fen)(fen)塵(chen)的捕集(ji)。