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(shi)式(shi)電(dian)除塵(chen)(chen)器主要有兩種(zhong)結構(gou)形式(shi)，一(yi)種(zhong)是使用(yong)耐腐(fu)蝕導(dao)電(dian)材(cai)(cai)(cai)料(liao)（可以(yi)為導(dao)電(dian)性能優良的(de)的(de)非金(jin)屬材(cai)(cai)(cai)料(liao)或(huo)具有耐腐(fu)蝕特性的(de)金(jin)屬材(cai)(cai)(cai)料(liao)）做(zuo)集塵(chen)(chen)極(ji)，另一(yi)種(zhong)是用(yong)通過(guo)噴水(shui)(shui)或(huo)溢(yi)流水(shui)(shui)形成導(dao)電(dian)水(shui)(shui)膜，利用(yong)不導(dao)電(dian)的(de)非金(jin)屬材(cai)(cai)(cai)料(liao)做(zuo)集塵(chen)(chen)極(ji)。

收(shou)塵原理(li)

濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器和(he)與干式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器的收塵(chen)(chen)(chen)(chen)(chen)原(yuan)理相(xiang)同，都是(shi)靠高壓(ya)電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場力(li)的作(zuo)用下到達集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管(guan)。干式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)器主要(yao)處理含水很低的干氣(qi)體，濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器主要(yao)處理含水較高乃(nai)至飽和(he)的濕氣(qi)體。在對(dui)集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管(guan)上捕集(ji)到的粉塵(chen)(chen)(chen)(chen)(chen)清除(chu)(chu)方(fang)式(shi)上WESP與DESP有較大(da)區別，干式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器一般采用機械振(zhen)打或聲(sheng)波(bo)清灰(hui)等方(fang)式(shi)清除(chu)(chu)電(dian)(dian)(dian)極上的積(ji)灰(hui)，而濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器則采用定期沖洗的方(fang)式(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨著(zhu)沖刷液的流動而清除(chu)(chu)。