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)除塵器主要有(you)兩種(zhong)結構形式，一種(zhong)是使用耐腐(fu)蝕導(dao)(dao)電(dian)材(cai)料（可(ke)以為導(dao)(dao)電(dian)性能(neng)優良的(de)的(de)非金屬材(cai)料或(huo)具有(you)耐腐(fu)蝕特性的(de)金屬材(cai)料）做集塵極，另一種(zhong)是用通過噴水或(huo)溢(yi)流水形成導(dao)(dao)電(dian)水膜，利用不(bu)導(dao)(dao)電(dian)的(de)非金屬材(cai)料做集塵極。

收塵原(yuan)理(li)

濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)和(he)與(yu)干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的(de)收塵(chen)(chen)(chen)原(yuan)理(li)相同(tong)，都是(shi)靠高壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后(hou)的(de)粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)場力(li)的(de)作用下到達集(ji)(ji)(ji)塵(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要(yao)處理(li)含水很(hen)低的(de)干(gan)氣體，濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)主要(yao)處理(li)含水較高乃至飽和(he)的(de)濕(shi)(shi)氣體。在對集(ji)(ji)(ji)塵(chen)(chen)(chen)板(ban)/管上(shang)捕(bu)集(ji)(ji)(ji)到的(de)粉塵(chen)(chen)(chen)清除(chu)方(fang)式(shi)(shi)上(shang)WESP與(yu)DESP有較大(da)區別(bie)，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)一(yi)般采用機械振打或聲波清灰等(deng)方(fang)式(shi)(shi)清除(chu)電(dian)(dian)(dian)(dian)(dian)極上(shang)的(de)積灰，而濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)則采用定期沖洗的(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)隨著沖刷液的(de)流(liu)動而清除(chu)。