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)(chen)器主要有兩種(zhong)(zhong)結構形(xing)(xing)式，一(yi)(yi)種(zhong)(zhong)是使用(yong)耐(nai)腐(fu)蝕(shi)導電材料(liao)（可以為導電性(xing)能優良的(de)的(de)非(fei)金屬材料(liao)或(huo)具有耐(nai)腐(fu)蝕(shi)特性(xing)的(de)金屬材料(liao)）做集塵(chen)(chen)極，另一(yi)(yi)種(zhong)(zhong)是用(yong)通過噴水(shui)或(huo)溢流(liu)水(shui)形(xing)(xing)成(cheng)導電水(shui)膜，利(li)用(yong)不導電的(de)非(fei)金屬材料(liao)做集塵(chen)(chen)極。

收塵原理(li)

濕(shi)(shi)式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)和與(yu)干式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)原理(li)相同(tong)，都是靠(kao)高壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后(hou)的粉(fen)(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的作用(yong)下到(dao)達集(ji)塵(chen)(chen)(chen)板/管。干式電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處(chu)理(li)含水很低的干氣(qi)體，濕(shi)(shi)式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)主要處(chu)理(li)含水較高乃至飽和的濕(shi)(shi)氣(qi)體。在對集(ji)塵(chen)(chen)(chen)板/管上捕集(ji)到(dao)的粉(fen)(fen)塵(chen)(chen)(chen)清(qing)除(chu)方式上WESP與(yu)DESP有較大區別(bie)，干式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)一般采用(yong)機械振打或聲波清(qing)灰(hui)等方式清(qing)除(chu)電(dian)(dian)(dian)極上的積灰(hui)，而濕(shi)(shi)式電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)則采用(yong)定期(qi)沖(chong)(chong)洗(xi)的方式，使粉(fen)(fen)塵(chen)(chen)(chen)隨著(zhu)沖(chong)(chong)刷(shua)液(ye)的流動而清(qing)除(chu)。