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。

濕式電(dian)除(chu)塵器(qi)主要有兩種(zhong)結構形式，一種(zhong)是(shi)使(shi)用(yong)(yong)耐腐蝕(shi)導電(dian)材料(liao)(liao)（可以為(wei)導電(dian)性能優良的的非金屬材料(liao)(liao)或具有耐腐蝕(shi)特性的金屬材料(liao)(liao)）做集(ji)塵極，另(ling)一種(zhong)是(shi)用(yong)(yong)通(tong)過噴水或溢流水形成導電(dian)水膜，利用(yong)(yong)不導電(dian)的非金屬材料(liao)(liao)做集(ji)塵極。

收塵(chen)原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)和與(yu)干(gan)(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)原理相同，都是靠高壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)荷(he)(he)電(dian)(dian)(dian)(dian)(dian)，荷(he)(he)電(dian)(dian)(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)場力的作(zuo)用下到達集(ji)塵(chen)(chen)(chen)板/管。干(gan)(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要(yao)處理含(han)水很低(di)的干(gan)(gan)(gan)氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)主要(yao)處理含(han)水較高乃(nai)至飽和的濕(shi)氣體。在對(dui)集(ji)塵(chen)(chen)(chen)板/管上捕集(ji)到的粉(fen)塵(chen)(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)上WESP與(yu)DESP有較大(da)區別，干(gan)(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)一(yi)般采用機械振(zhen)打或(huo)聲波清灰等方式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)極(ji)上的積灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)則采用定期(qi)沖洗的方式(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)隨(sui)著沖刷液(ye)的流動而清除(chu)(chu)(chu)。