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。

濕式電除塵(chen)器主要有兩(liang)種結構形式，一種是(shi)使(shi)用耐(nai)腐(fu)蝕(shi)導電材料（可以為導電性能優(you)良的(de)(de)的(de)(de)非(fei)金屬材料或具有耐(nai)腐(fu)蝕(shi)特(te)性的(de)(de)金屬材料）做(zuo)集塵(chen)極，另一種是(shi)用通過噴水或溢流水形成導電水膜，利用不導電的(de)(de)非(fei)金屬材料做(zuo)集塵(chen)極。

收塵原(yuan)理

濕(shi)(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器和(he)(he)與(yu)干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器的收塵(chen)(chen)原(yuan)理(li)相同，都是靠(kao)高壓電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)使(shi)(shi)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(dao)達集(ji)塵(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器主要處(chu)理(li)含水很低的干(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器主要處(chu)理(li)含水較高乃(nai)至飽和(he)(he)的濕(shi)(shi)氣體(ti)。在對(dui)集(ji)塵(chen)(chen)板/管(guan)上捕(bu)集(ji)到(dao)的粉(fen)塵(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)(shi)(shi)上WESP與(yu)DESP有(you)較大區別，干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器一般采(cai)用機械振打(da)或(huo)聲波清灰(hui)等方式(shi)(shi)(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極(ji)上的積灰(hui)，而濕(shi)(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器則采(cai)用定期沖洗的方式(shi)(shi)(shi)(shi)，使(shi)(shi)粉(fen)塵(chen)(chen)隨著沖刷(shua)液的流(liu)動而清除(chu)(chu)(chu)。