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)器主要有兩種(zhong)結構(gou)形(xing)式，一種(zhong)是(shi)使(shi)用耐腐(fu)蝕導(dao)電(dian)材料（可以(yi)為導(dao)電(dian)性能優良的(de)的(de)非金屬材料或具有耐腐(fu)蝕特性的(de)金屬材料）做集(ji)塵(chen)極(ji)，另一種(zhong)是(shi)用通過噴水(shui)或溢流水(shui)形(xing)成導(dao)電(dian)水(shui)膜，利用不導(dao)電(dian)的(de)非金屬材料做集(ji)塵(chen)極(ji)。

收塵原理

濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器和與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)收塵(chen)(chen)原(yuan)理相同(tong)，都是(shi)靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)(shi)得粉塵(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后的(de)粉塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場(chang)力的(de)作用(yong)下(xia)到達集塵(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器主要處理含(han)水很低的(de)干(gan)(gan)氣(qi)體，濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器主要處理含(han)水較高乃至飽和的(de)濕(shi)(shi)氣(qi)體。在(zai)對集塵(chen)(chen)板/管(guan)上捕集到的(de)粉塵(chen)(chen)清除方式(shi)(shi)上WESP與DESP有較大區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器一般采用(yong)機械振打(da)或聲波清灰等(deng)方式(shi)(shi)清除電(dian)(dian)(dian)(dian)極(ji)上的(de)積灰，而(er)濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器則采用(yong)定期沖(chong)洗的(de)方式(shi)(shi)，使(shi)(shi)粉塵(chen)(chen)隨(sui)著沖(chong)刷液的(de)流動而(er)清除。