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(chu)塵器(qi)主要有兩種(zhong)(zhong)結構形式，一種(zhong)(zhong)是使用耐腐(fu)蝕導(dao)(dao)電(dian)(dian)材(cai)料（可以為導(dao)(dao)電(dian)(dian)性能優良的(de)的(de)非金(jin)屬(shu)材(cai)料或具有耐腐(fu)蝕特(te)性的(de)金(jin)屬(shu)材(cai)料）做集塵極，另一種(zhong)(zhong)是用通過噴水或溢(yi)流水形成(cheng)導(dao)(dao)電(dian)(dian)水膜，利用不導(dao)(dao)電(dian)(dian)的(de)非金(jin)屬(shu)材(cai)料做集塵極。

收塵(chen)原理(li)

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器和(he)與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器的收塵(chen)(chen)原理相同(tong)，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)在電(dian)(dian)(dian)(dian)場力(li)的作用下到達集(ji)塵(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器主(zhu)要處(chu)理含(han)水(shui)很(hen)低的干(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器主(zhu)要處(chu)理含(han)水(shui)較高乃至飽和(he)的濕(shi)(shi)氣體(ti)。在對(dui)集(ji)塵(chen)(chen)板/管(guan)上(shang)捕(bu)集(ji)到的粉(fen)塵(chen)(chen)清除(chu)(chu)方(fang)式(shi)(shi)(shi)上(shang)WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器一般(ban)采用機械振打或(huo)聲波清灰(hui)等方(fang)式(shi)(shi)(shi)清除(chu)(chu)電(dian)(dian)(dian)(dian)極上(shang)的積灰(hui)，而(er)濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器則采用定期沖洗的方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)隨著(zhu)沖刷(shua)液的流動而(er)清除(chu)(chu)。