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)電除塵(chen)器(qi)主要有兩(liang)種(zhong)結構形式(shi)，一種(zhong)是使用耐腐蝕導(dao)電材(cai)料(liao)（可以為導(dao)電性(xing)能優(you)良的(de)(de)(de)的(de)(de)(de)非金屬(shu)材(cai)料(liao)或具有耐腐蝕特性(xing)的(de)(de)(de)金屬(shu)材(cai)料(liao)）做集塵(chen)極，另(ling)一種(zhong)是用通過噴水或溢流水形成導(dao)電水膜，利用不導(dao)電的(de)(de)(de)非金屬(shu)材(cai)料(liao)做集塵(chen)極。

收塵原理

濕(shi)(shi)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器和(he)(he)與干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器的(de)收塵(chen)(chen)(chen)原理(li)相(xiang)同，都是靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)粉塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場力(li)的(de)作(zuo)用(yong)下到達集塵(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器主要(yao)處(chu)理(li)含(han)水很低的(de)干(gan)氣(qi)體，濕(shi)(shi)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器主要(yao)處(chu)理(li)含(han)水較高(gao)乃至飽和(he)(he)的(de)濕(shi)(shi)氣(qi)體。在(zai)對集塵(chen)(chen)(chen)板/管(guan)上捕集到的(de)粉塵(chen)(chen)(chen)清(qing)除方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器一(yi)般采(cai)用(yong)機械振打或聲波清(qing)灰等方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)清(qing)除電(dian)(dian)(dian)極上的(de)積灰，而濕(shi)(shi)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器則采(cai)用(yong)定期(qi)沖洗的(de)方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)，使粉塵(chen)(chen)(chen)隨(sui)著沖刷液的(de)流動而清(qing)除。