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)除塵(chen)器主要有(you)兩(liang)種(zhong)結構形式，一種(zhong)是使用(yong)(yong)耐(nai)腐(fu)蝕導電(dian)(dian)材(cai)料(liao)(liao)（可以為導電(dian)(dian)性(xing)能(neng)優(you)良(liang)的的非金屬(shu)材(cai)料(liao)(liao)或(huo)具有(you)耐(nai)腐(fu)蝕特性(xing)的金屬(shu)材(cai)料(liao)(liao)）做(zuo)集塵(chen)極(ji)，另(ling)一種(zhong)是用(yong)(yong)通過噴(pen)水或(huo)溢流水形成導電(dian)(dian)水膜，利(li)用(yong)(yong)不導電(dian)(dian)的非金屬(shu)材(cai)料(liao)(liao)做(zuo)集塵(chen)極(ji)。

收塵原理

濕式(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)和與(yu)干式(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原理相同，都是靠(kao)高壓電(dian)(dian)暈放電(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)場力的(de)(de)作用下到達集塵(chen)(chen)(chen)(chen)(chen)板/管。干式(shi)電(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理含水很低的(de)(de)干氣體，濕式(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理含水較高乃至飽(bao)和的(de)(de)濕氣體。在對(dui)集塵(chen)(chen)(chen)(chen)(chen)板/管上捕集到的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清除(chu)方(fang)式(shi)上WESP與(yu)DESP有較大區(qu)別，干式(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)一般(ban)采(cai)用機械振打或聲波清灰等方(fang)式(shi)清除(chu)電(dian)(dian)極(ji)上的(de)(de)積灰，而濕式(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)則采(cai)用定期沖洗(xi)的(de)(de)方(fang)式(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)流動(dong)而清除(chu)。