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)(dian)除塵(chen)(chen)器主(zhu)要有兩種(zhong)(zhong)結構形式，一種(zhong)(zhong)是使(shi)用(yong)(yong)(yong)耐(nai)腐(fu)蝕導(dao)電(dian)(dian)材料(liao)（可以(yi)為導(dao)電(dian)(dian)性能(neng)優良的(de)(de)的(de)(de)非金(jin)(jin)屬材料(liao)或具有耐(nai)腐(fu)蝕特(te)性的(de)(de)金(jin)(jin)屬材料(liao)）做集(ji)(ji)塵(chen)(chen)極，另(ling)一種(zhong)(zhong)是用(yong)(yong)(yong)通(tong)過噴水(shui)或溢流水(shui)形成導(dao)電(dian)(dian)水(shui)膜，利(li)用(yong)(yong)(yong)不(bu)導(dao)電(dian)(dian)的(de)(de)非金(jin)(jin)屬材料(liao)做集(ji)(ji)塵(chen)(chen)極。

收塵原理(li)

濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)和(he)與干(gan)(gan)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)(de)收塵(chen)(chen)原理相同，都是(shi)靠(kao)高(gao)壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得(de)粉塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)(de)粉塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)下到達(da)集(ji)塵(chen)(chen)板/管。干(gan)(gan)式(shi)電(dian)(dian)(dian)收塵(chen)(chen)器(qi)主要(yao)處理含水(shui)很低(di)的(de)(de)(de)干(gan)(gan)氣體，濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)主要(yao)處理含水(shui)較(jiao)高(gao)乃至飽和(he)的(de)(de)(de)濕(shi)氣體。在(zai)對集(ji)塵(chen)(chen)板/管上(shang)捕集(ji)到的(de)(de)(de)粉塵(chen)(chen)清除方式(shi)上(shang)WESP與DESP有較(jiao)大區別(bie)，干(gan)(gan)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)一般采用(yong)機械振(zhen)打或聲波清灰等(deng)方式(shi)清除電(dian)(dian)(dian)極上(shang)的(de)(de)(de)積灰，而濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)(de)(de)方式(shi)，使(shi)粉塵(chen)(chen)隨(sui)著沖刷液(ye)的(de)(de)(de)流(liu)動而清除。