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)器主要有兩(liang)種結構形式，一種是(shi)(shi)使用(yong)耐(nai)腐(fu)(fu)蝕(shi)導(dao)(dao)電(dian)(dian)材料（可以為導(dao)(dao)電(dian)(dian)性(xing)能優良的(de)的(de)非金屬材料或具有耐(nai)腐(fu)(fu)蝕(shi)特性(xing)的(de)金屬材料）做集塵(chen)極，另一種是(shi)(shi)用(yong)通(tong)過(guo)噴水或溢流(liu)水形成(cheng)導(dao)(dao)電(dian)(dian)水膜，利用(yong)不導(dao)(dao)電(dian)(dian)的(de)非金屬材料做集塵(chen)極。

收塵原理

濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器和(he)與(yu)干式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器的(de)(de)收塵(chen)(chen)原理相同，都是靠高(gao)壓電(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)使得(de)粉塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用(yong)下到達集(ji)塵(chen)(chen)板/管(guan)。干式(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器主要(yao)處理含水很低(di)的(de)(de)干氣(qi)體，濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器主要(yao)處理含水較(jiao)(jiao)高(gao)乃至飽(bao)和(he)的(de)(de)濕(shi)(shi)(shi)氣(qi)體。在對(dui)集(ji)塵(chen)(chen)板/管(guan)上(shang)(shang)捕集(ji)到的(de)(de)粉塵(chen)(chen)清(qing)除(chu)方式(shi)上(shang)(shang)WESP與(yu)DESP有(you)較(jiao)(jiao)大區別，干式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器一般采(cai)用(yong)機械(xie)振(zhen)打或聲波(bo)清(qing)灰(hui)等(deng)方式(shi)清(qing)除(chu)電(dian)(dian)(dian)(dian)極上(shang)(shang)的(de)(de)積(ji)灰(hui)，而濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器則采(cai)用(yong)定期沖(chong)(chong)洗的(de)(de)方式(shi)，使粉塵(chen)(chen)隨(sui)著沖(chong)(chong)刷液的(de)(de)流動(dong)而清(qing)除(chu)。