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)(dian)除塵(chen)器主(zhu)要有兩(liang)種結構形(xing)式(shi)，一種是使用耐腐蝕(shi)(shi)導(dao)電(dian)(dian)材(cai)(cai)料(liao)(liao)（可以為導(dao)電(dian)(dian)性能優良的(de)(de)的(de)(de)非金屬(shu)材(cai)(cai)料(liao)(liao)或具有耐腐蝕(shi)(shi)特(te)性的(de)(de)金屬(shu)材(cai)(cai)料(liao)(liao)）做集塵(chen)極，另一種是用通過噴水(shui)或溢流水(shui)形(xing)成導(dao)電(dian)(dian)水(shui)膜，利用不導(dao)電(dian)(dian)的(de)(de)非金屬(shu)材(cai)(cai)料(liao)(liao)做集塵(chen)極。

收塵原理

濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器的(de)(de)收塵(chen)(chen)原理相同(tong)，都是(shi)靠高壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得(de)粉塵(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用下到(dao)達集(ji)塵(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)器主要(yao)處(chu)理含水很低的(de)(de)干(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器主要(yao)處(chu)理含水較高乃(nai)至飽和的(de)(de)濕(shi)(shi)氣體(ti)。在對集(ji)塵(chen)(chen)板/管(guan)上捕集(ji)到(dao)的(de)(de)粉塵(chen)(chen)清除(chu)方(fang)式(shi)(shi)上WESP與DESP有較大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器一般采用機械振打或聲波(bo)清灰等方(fang)式(shi)(shi)清除(chu)電(dian)(dian)(dian)(dian)(dian)極上的(de)(de)積灰，而濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器則(ze)采用定期沖洗的(de)(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)隨著沖刷液的(de)(de)流動而清除(chu)。