濕式電除塵器是一種用來處理含微量粉塵和微顆粒的新除塵設備，主要用來除去含濕氣體中的塵、酸霧、水滴、氣溶膠、臭味、PM2.5等有害物質，是治理大氣粉塵污染的理想設備。

濕式電除塵器通常簡稱WESP，與干式電除塵器的除塵基本原理相同，要經歷荷電、收集和清灰三個階段。

濕(shi)式(shi)(shi)電除(chu)塵器主要有兩種結構形式(shi)(shi)，一(yi)(yi)種是(shi)使用(yong)(yong)耐(nai)腐蝕(shi)導(dao)(dao)電材(cai)(cai)料(liao)(liao)（可以為導(dao)(dao)電性能優良的(de)的(de)非金屬(shu)材(cai)(cai)料(liao)(liao)或(huo)(huo)具有耐(nai)腐蝕(shi)特性的(de)金屬(shu)材(cai)(cai)料(liao)(liao)）做集塵極，另一(yi)(yi)種是(shi)用(yong)(yong)通過噴水(shui)或(huo)(huo)溢流水(shui)形成導(dao)(dao)電水(shui)膜，利用(yong)(yong)不(bu)導(dao)(dao)電的(de)非金屬(shu)材(cai)(cai)料(liao)(liao)做集塵極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)和(he)(he)與(yu)(yu)干式(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)的收塵(chen)原理(li)相同，都(dou)是靠高(gao)壓電(dian)(dian)(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)(dian)(dian)使得(de)粉(fen)塵(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后的粉(fen)塵(chen)在電(dian)(dian)(dian)(dian)(dian)場力的作用(yong)(yong)下到(dao)達集塵(chen)板/管。干式(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)器(qi)主(zhu)要處理(li)含水(shui)(shui)很低的干氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)主(zhu)要處理(li)含水(shui)(shui)較高(gao)乃至飽和(he)(he)的濕(shi)氣體(ti)。在對集塵(chen)板/管上捕集到(dao)的粉(fen)塵(chen)清除(chu)(chu)(chu)方(fang)式(shi)上WESP與(yu)(yu)DESP有較大區別(bie)，干式(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)一般(ban)采用(yong)(yong)機(ji)械(xie)振打或聲(sheng)波清灰等方(fang)式(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)極上的積灰，而(er)濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)則(ze)采用(yong)(yong)定期沖(chong)洗的方(fang)式(shi)，使粉(fen)塵(chen)隨著沖(chong)刷液(ye)的流動而(er)清除(chu)(chu)(chu)。