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)電(dian)(dian)除塵(chen)器主要(yao)有(you)兩種結構形(xing)式(shi)，一(yi)種是(shi)使用耐腐(fu)蝕導(dao)電(dian)(dian)材(cai)料(liao)（可以為導(dao)電(dian)(dian)性能(neng)優良的的非金(jin)屬材(cai)料(liao)或具(ju)有(you)耐腐(fu)蝕特性的金(jin)屬材(cai)料(liao)）做集(ji)塵(chen)極，另一(yi)種是(shi)用通(tong)過噴水(shui)或溢流(liu)水(shui)形(xing)成導(dao)電(dian)(dian)水(shui)膜，利用不導(dao)電(dian)(dian)的非金(jin)屬材(cai)料(liao)做集(ji)塵(chen)極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)和(he)與干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)原理(li)相(xiang)同(tong)，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后(hou)的粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的作用(yong)(yong)下到達集(ji)塵(chen)(chen)(chen)板(ban)/管。干式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含水(shui)很低的干氣(qi)體，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含水(shui)較高乃至(zhi)飽和(he)的濕(shi)氣(qi)體。在對集(ji)塵(chen)(chen)(chen)板(ban)/管上捕(bu)集(ji)到的粉(fen)塵(chen)(chen)(chen)清除(chu)方式(shi)上WESP與DESP有較大區別(bie)，干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)一般采(cai)用(yong)(yong)機械振打或(huo)聲波清灰等方式(shi)清除(chu)電(dian)(dian)(dian)極上的積灰，而濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)則(ze)采(cai)用(yong)(yong)定期沖(chong)洗(xi)的方式(shi)，使粉(fen)塵(chen)(chen)(chen)隨著沖(chong)刷液的流動而清除(chu)。