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(shi)電(dian)除塵(chen)器主要有兩種(zhong)結構(gou)形(xing)式(shi)，一種(zhong)是使(shi)用(yong)耐(nai)腐蝕(shi)導電(dian)材(cai)料（可以(yi)為導電(dian)性能優良(liang)的(de)的(de)非金(jin)屬(shu)材(cai)料或(huo)具有耐(nai)腐蝕(shi)特(te)性的(de)金(jin)屬(shu)材(cai)料）做集塵(chen)極，另一種(zhong)是用(yong)通過噴水(shui)或(huo)溢(yi)流水(shui)形(xing)成導電(dian)水(shui)膜，利用(yong)不導電(dian)的(de)非金(jin)屬(shu)材(cai)料做集塵(chen)極。

收塵(chen)原理

濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)和與干式(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(gao)壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)(dian)后的粉(fen)(fen)塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)力的作用下到達集塵(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主(zhu)要處理含水(shui)(shui)很低(di)的干氣體，濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)主(zhu)要處理含水(shui)(shui)較高(gao)乃(nai)至飽(bao)和的濕氣體。在(zai)對(dui)集塵(chen)(chen)(chen)板/管上捕集到的粉(fen)(fen)塵(chen)(chen)(chen)清除(chu)(chu)(chu)方(fang)式(shi)(shi)上WESP與DESP有較大區別，干式(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(da)或聲波清灰等方(fang)式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)極上的積(ji)灰，而濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)則采用定期沖洗的方(fang)式(shi)(shi)，使粉(fen)(fen)塵(chen)(chen)(chen)隨著沖刷液的流動(dong)而清除(chu)(chu)(chu)。