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(shi)式電除塵器主要(yao)有(you)兩種(zhong)(zhong)結構形式，一種(zhong)(zhong)是(shi)(shi)使用(yong)(yong)(yong)耐腐(fu)蝕(shi)(shi)導(dao)電材料（可以為(wei)導(dao)電性(xing)(xing)能優良(liang)的(de)的(de)非(fei)金(jin)屬材料或(huo)具有(you)耐腐(fu)蝕(shi)(shi)特性(xing)(xing)的(de)金(jin)屬材料）做(zuo)集塵極，另(ling)一種(zhong)(zhong)是(shi)(shi)用(yong)(yong)(yong)通過噴(pen)水或(huo)溢流水形成導(dao)電水膜，利用(yong)(yong)(yong)不導(dao)電的(de)非(fei)金(jin)屬材料做(zuo)集塵極。

收塵原理

濕式(shi)(shi)電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)和與干式(shi)(shi)電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原理相同，都(dou)是靠高(gao)壓電(dian)暈放(fang)電(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)，荷(he)電(dian)后(hou)的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)場力的(de)(de)作用下到達集(ji)塵(chen)(chen)(chen)(chen)板(ban)/管(guan)(guan)。干式(shi)(shi)電(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)主要處理含水(shui)很低的(de)(de)干氣體(ti)，濕式(shi)(shi)電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)主要處理含水(shui)較高(gao)乃至(zhi)飽和的(de)(de)濕氣體(ti)。在(zai)對(dui)集(ji)塵(chen)(chen)(chen)(chen)板(ban)/管(guan)(guan)上(shang)捕集(ji)到的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)方(fang)(fang)式(shi)(shi)上(shang)WESP與DESP有較大區(qu)別，干式(shi)(shi)電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)一般采用機械振打或(huo)聲(sheng)波清(qing)灰等方(fang)(fang)式(shi)(shi)清(qing)除(chu)(chu)(chu)電(dian)極上(shang)的(de)(de)積灰，而濕式(shi)(shi)電(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)則采用定期(qi)沖洗的(de)(de)方(fang)(fang)式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷(shua)液的(de)(de)流動而清(qing)除(chu)(chu)(chu)。