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。

濕式(shi)電除塵器主要有兩種結構形式(shi)，一(yi)種是使用(yong)耐腐蝕導電材料（可以為導電性(xing)能優良(liang)的的非(fei)金屬材料或(huo)具有耐腐蝕特性(xing)的金屬材料）做集(ji)塵極，另一(yi)種是用(yong)通過噴水(shui)或(huo)溢(yi)流水(shui)形成導電水(shui)膜，利用(yong)不導電的非(fei)金屬材料做集(ji)塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器和與干式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器的收(shou)塵(chen)(chen)(chen)原理相(xiang)同，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的作用(yong)(yong)下(xia)到達集塵(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)器主要(yao)處(chu)理含(han)水很低的干氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器主要(yao)處(chu)理含(han)水較(jiao)高乃至飽和的濕(shi)氣體。在對集塵(chen)(chen)(chen)板/管上捕集到的粉塵(chen)(chen)(chen)清(qing)(qing)(qing)除(chu)方式(shi)(shi)上WESP與DESP有較(jiao)大區別(bie)，干式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器一(yi)般采用(yong)(yong)機(ji)械振打或聲波清(qing)(qing)(qing)灰(hui)等(deng)方式(shi)(shi)清(qing)(qing)(qing)除(chu)電(dian)(dian)(dian)極上的積灰(hui)，而(er)濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器則采用(yong)(yong)定期沖(chong)洗(xi)的方式(shi)(shi)，使粉塵(chen)(chen)(chen)隨著沖(chong)刷液的流動而(er)清(qing)(qing)(qing)除(chu)。