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)器主要有(you)兩種(zhong)結構形式，一種(zhong)是使用耐腐蝕導電材(cai)料(liao)（可以為導電性(xing)能優良(liang)的的非(fei)金(jin)屬材(cai)料(liao)或(huo)具(ju)有(you)耐腐蝕特性(xing)的金(jin)屬材(cai)料(liao)）做集塵(chen)極，另(ling)一種(zhong)是用通過噴(pen)水或(huo)溢流水形成導電水膜，利(li)用不導電的非(fei)金(jin)屬材(cai)料(liao)做集塵(chen)極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)和與(yu)干(gan)式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)的收塵(chen)(chen)原理相同，都是靠高壓電(dian)(dian)暈放(fang)電(dian)(dian)使(shi)得(de)粉(fen)塵(chen)(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的粉(fen)塵(chen)(chen)在(zai)電(dian)(dian)場力(li)的作(zuo)用(yong)(yong)(yong)下到達集塵(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)電(dian)(dian)收塵(chen)(chen)器(qi)主(zhu)要處(chu)(chu)理含水很低的干(gan)氣(qi)體，濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)主(zhu)要處(chu)(chu)理含水較高乃至飽和的濕(shi)氣(qi)體。在(zai)對(dui)集塵(chen)(chen)板(ban)/管上捕集到的粉(fen)塵(chen)(chen)清(qing)除(chu)(chu)(chu)方(fang)式(shi)(shi)上WESP與(yu)DESP有較大區別，干(gan)式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)一般采用(yong)(yong)(yong)機械(xie)振打(da)或聲波清(qing)灰(hui)等(deng)方(fang)式(shi)(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)極上的積灰(hui)，而濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)則采用(yong)(yong)(yong)定期(qi)沖(chong)(chong)洗的方(fang)式(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)隨著沖(chong)(chong)刷(shua)液的流動而清(qing)除(chu)(chu)(chu)。