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)除塵(chen)器(qi)主要有兩種(zhong)(zhong)結構形式，一(yi)種(zhong)(zhong)是使用耐腐蝕導電(dian)材(cai)料(liao)(liao)（可(ke)以為導電(dian)性能優良的的非金(jin)屬(shu)材(cai)料(liao)(liao)或具有耐腐蝕特性的金(jin)屬(shu)材(cai)料(liao)(liao)）做集(ji)塵(chen)極，另一(yi)種(zhong)(zhong)是用通過噴水(shui)或溢流水(shui)形成導電(dian)水(shui)膜，利用不(bu)導電(dian)的非金(jin)屬(shu)材(cai)料(liao)(liao)做集(ji)塵(chen)極。

收塵原理

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)和(he)與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)的(de)(de)收塵(chen)(chen)(chen)(chen)原理相同(tong)，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場(chang)力(li)的(de)(de)作用下到(dao)達(da)集塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)主要處(chu)理含水很(hen)低的(de)(de)干(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)主要處(chu)理含水較高乃至飽(bao)和(he)的(de)(de)濕(shi)(shi)氣體(ti)。在對集塵(chen)(chen)(chen)(chen)板(ban)/管上捕集到(dao)的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清除方式(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)一般采用機械(xie)振打(da)或聲波清灰等方式(shi)(shi)(shi)清除電(dian)(dian)(dian)極上的(de)(de)積灰，而濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)(qi)則(ze)采用定期沖(chong)洗的(de)(de)方式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨(sui)著沖(chong)刷液的(de)(de)流(liu)動而清除。