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。

濕式電除塵(chen)器(qi)主要有兩種結構形(xing)式，一種是使用耐(nai)腐(fu)蝕導(dao)電材(cai)(cai)料(liao)（可以(yi)為導(dao)電性(xing)能優良的(de)的(de)非(fei)金屬(shu)(shu)材(cai)(cai)料(liao)或具有耐(nai)腐(fu)蝕特性(xing)的(de)金屬(shu)(shu)材(cai)(cai)料(liao)）做集塵(chen)極(ji)，另一種是用通過噴水或溢流水形(xing)成(cheng)導(dao)電水膜，利用不(bu)導(dao)電的(de)非(fei)金屬(shu)(shu)材(cai)(cai)料(liao)做集塵(chen)極(ji)。

收塵原理

濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)和與(yu)干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)原理相同，都是靠(kao)高壓電(dian)(dian)(dian)(dian)暈放(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(hou)的(de)(de)粉塵(chen)(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)作(zuo)用(yong)下到達集(ji)(ji)塵(chen)(chen)板/管(guan)。干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器(qi)主(zhu)(zhu)要處理含(han)水很低的(de)(de)干氣體(ti)，濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)主(zhu)(zhu)要處理含(han)水較(jiao)高乃至飽和的(de)(de)濕氣體(ti)。在對集(ji)(ji)塵(chen)(chen)板/管(guan)上(shang)捕集(ji)(ji)到的(de)(de)粉塵(chen)(chen)清(qing)除(chu)方(fang)式(shi)(shi)(shi)上(shang)WESP與(yu)DESP有較(jiao)大區別(bie)，干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)一般采用(yong)機械振打或聲(sheng)波(bo)清(qing)灰等方(fang)式(shi)(shi)(shi)清(qing)除(chu)電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)積灰，而(er)濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)(de)方(fang)式(shi)(shi)(shi)，使粉塵(chen)(chen)隨著沖刷液(ye)的(de)(de)流動而(er)清(qing)除(chu)。