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)(dian)(dian)除塵(chen)器主要有兩種結構形(xing)式(shi)，一種是使用耐腐(fu)蝕導電(dian)(dian)(dian)材(cai)料(liao)（可(ke)以為(wei)導電(dian)(dian)(dian)性能優(you)良的的非金(jin)屬材(cai)料(liao)或(huo)具有耐腐(fu)蝕特性的金(jin)屬材(cai)料(liao)）做集塵(chen)極，另一種是用通過噴水(shui)或(huo)溢流水(shui)形(xing)成導電(dian)(dian)(dian)水(shui)膜，利(li)用不導電(dian)(dian)(dian)的非金(jin)屬材(cai)料(liao)做集塵(chen)極。

收塵(chen)原理(li)

濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)和與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)的收塵(chen)(chen)原理(li)(li)相(xiang)同，都(dou)是靠高壓電(dian)(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)(dian)場力(li)的作用(yong)下到(dao)達集(ji)塵(chen)(chen)板(ban)/管(guan)。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器(qi)(qi)(qi)主(zhu)要(yao)處理(li)(li)含水(shui)很低(di)的干(gan)氣(qi)體(ti)，濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)主(zhu)要(yao)處理(li)(li)含水(shui)較高乃(nai)至飽和的濕氣(qi)體(ti)。在(zai)(zai)對集(ji)塵(chen)(chen)板(ban)/管(guan)上捕集(ji)到(dao)的粉(fen)塵(chen)(chen)清除(chu)(chu)方式(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)一般采用(yong)機械振打(da)或聲波清灰(hui)等(deng)方式(shi)(shi)(shi)清除(chu)(chu)電(dian)(dian)(dian)(dian)極上的積灰(hui)，而(er)濕式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)則采用(yong)定期沖洗的方式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)隨著沖刷液的流(liu)動(dong)而(er)清除(chu)(chu)。