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)器主要有兩種(zhong)結構形式，一種(zhong)是使用耐腐蝕導(dao)(dao)電材料（可(ke)以(yi)為導(dao)(dao)電性能(neng)優良的(de)的(de)非(fei)(fei)金屬材料或具有耐腐蝕特性的(de)金屬材料）做集(ji)塵(chen)極，另(ling)一種(zhong)是用通過噴水或溢流(liu)水形成導(dao)(dao)電水膜，利(li)用不導(dao)(dao)電的(de)非(fei)(fei)金屬材料做集(ji)塵(chen)極。

收塵原理(li)

濕式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)和(he)與干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)收塵(chen)(chen)(chen)(chen)原理相同，都(dou)是靠(kao)高壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)場力的(de)(de)(de)作用下到達(da)集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處理含水很低的(de)(de)(de)干(gan)氣(qi)體，濕式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處理含水較高乃至飽和(he)的(de)(de)(de)濕氣(qi)體。在(zai)對集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管上捕(bu)集(ji)(ji)到的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清除方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)一(yi)般(ban)采(cai)(cai)用機械振打或聲波(bo)清灰等方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)清除電(dian)(dian)極上的(de)(de)(de)積灰，而濕式(shi)(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)則采(cai)(cai)用定期(qi)沖洗的(de)(de)(de)方(fang)式(shi)(shi)(shi)(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)(chen)隨著(zhu)沖刷液的(de)(de)(de)流動而清除。