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。

濕式電除塵(chen)(chen)器(qi)主要有(you)兩種結構形式，一種是(shi)使用耐腐(fu)蝕導(dao)電材料（可(ke)以(yi)為導(dao)電性能優良的的非金(jin)屬(shu)材料或具有(you)耐腐(fu)蝕特性的金(jin)屬(shu)材料）做集塵(chen)(chen)極，另一種是(shi)用通過噴水(shui)或溢流水(shui)形成導(dao)電水(shui)膜，利用不導(dao)電的非金(jin)屬(shu)材料做集塵(chen)(chen)極。

收塵原理(li)

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器和與干式(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器的(de)(de)收塵(chen)(chen)(chen)原(yuan)理(li)相同，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)作用(yong)(yong)下到(dao)達(da)集(ji)塵(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器主要處理(li)含(han)水很低的(de)(de)干氣(qi)體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器主要處理(li)含(han)水較(jiao)高乃至飽和的(de)(de)濕(shi)氣(qi)體。在對集(ji)塵(chen)(chen)(chen)板/管上捕集(ji)到(dao)的(de)(de)粉(fen)塵(chen)(chen)(chen)清(qing)(qing)除方(fang)式(shi)(shi)上WESP與DESP有較(jiao)大(da)區別，干式(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器一(yi)般采用(yong)(yong)機械振打或聲波清(qing)(qing)灰(hui)(hui)等方(fang)式(shi)(shi)清(qing)(qing)除電(dian)(dian)(dian)極(ji)上的(de)(de)積灰(hui)(hui)，而(er)濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器則采用(yong)(yong)定期沖洗的(de)(de)方(fang)式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)隨著(zhu)沖刷液的(de)(de)流(liu)動而(er)清(qing)(qing)除。