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)除塵器(qi)主要有(you)(you)兩種結構形式(shi)，一種是使(shi)用(yong)耐腐(fu)蝕(shi)導電(dian)材(cai)料(liao)（可(ke)以為導電(dian)性能優(you)良的(de)的(de)非金屬(shu)(shu)材(cai)料(liao)或(huo)具有(you)(you)耐腐(fu)蝕(shi)特性的(de)金屬(shu)(shu)材(cai)料(liao)）做集塵極(ji)，另一種是用(yong)通過噴水或(huo)溢流水形成導電(dian)水膜，利用(yong)不導電(dian)的(de)非金屬(shu)(shu)材(cai)料(liao)做集塵極(ji)。

收塵原理(li)

濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵器(qi)(qi)(qi)(qi)和與(yu)干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵器(qi)(qi)(qi)(qi)的收(shou)塵原理(li)(li)(li)相同，都是(shi)靠高壓電(dian)(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)(dian)使得粉(fen)(fen)塵荷(he)電(dian)(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)(dian)后的粉(fen)(fen)塵在(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)力(li)的作用下到(dao)達集(ji)塵板/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收(shou)塵器(qi)(qi)(qi)(qi)主要(yao)處(chu)理(li)(li)(li)含(han)水很低的干(gan)氣體，濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵器(qi)(qi)(qi)(qi)主要(yao)處(chu)理(li)(li)(li)含(han)水較高乃至飽和的濕氣體。在(zai)對(dui)集(ji)塵板/管上(shang)捕(bu)集(ji)到(dao)的粉(fen)(fen)塵清除(chu)方(fang)式(shi)(shi)(shi)上(shang)WESP與(yu)DESP有較大區別(bie)，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵器(qi)(qi)(qi)(qi)一般(ban)采用機械振打或聲波清灰等方(fang)式(shi)(shi)(shi)清除(chu)電(dian)(dian)(dian)(dian)(dian)極(ji)上(shang)的積灰，而濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵器(qi)(qi)(qi)(qi)則采用定期(qi)沖洗的方(fang)式(shi)(shi)(shi)，使粉(fen)(fen)塵隨著沖刷液的流(liu)動而清除(chu)。