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(dian)除(chu)塵(chen)器(qi)主要有兩種(zhong)(zhong)結構(gou)形式，一種(zhong)(zhong)是使用耐腐蝕(shi)導(dao)電(dian)材料（可(ke)以為導(dao)電(dian)性能優良的(de)(de)的(de)(de)非金屬(shu)材料或具(ju)有耐腐蝕(shi)特性的(de)(de)金屬(shu)材料）做集(ji)(ji)塵(chen)極(ji)，另一種(zhong)(zhong)是用通過噴水或溢流(liu)水形成導(dao)電(dian)水膜，利(li)用不導(dao)電(dian)的(de)(de)非金屬(shu)材料做集(ji)(ji)塵(chen)極(ji)。

收塵原理(li)

濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)器和與(yu)干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)器的(de)(de)(de)(de)(de)收(shou)塵(chen)(chen)(chen)原理(li)(li)相同，都(dou)是靠高(gao)壓(ya)電(dian)(dian)暈放電(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的(de)(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)場力(li)的(de)(de)(de)(de)(de)作(zuo)用下到達集(ji)塵(chen)(chen)(chen)板(ban)/管。干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)收(shou)塵(chen)(chen)(chen)器主要(yao)處(chu)理(li)(li)含(han)水(shui)很(hen)低的(de)(de)(de)(de)(de)干(gan)(gan)氣(qi)體，濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)器主要(yao)處(chu)理(li)(li)含(han)水(shui)較(jiao)高(gao)乃(nai)至飽和的(de)(de)(de)(de)(de)濕(shi)氣(qi)體。在對集(ji)塵(chen)(chen)(chen)板(ban)/管上(shang)捕集(ji)到的(de)(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)清(qing)除方式(shi)(shi)(shi)上(shang)WESP與(yu)DESP有(you)較(jiao)大區別(bie)，干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)器一般采用機械振(zhen)打或聲波清(qing)灰等方式(shi)(shi)(shi)清(qing)除電(dian)(dian)極上(shang)的(de)(de)(de)(de)(de)積灰，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)器則采用定(ding)期沖洗的(de)(de)(de)(de)(de)方式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)(de)(de)流動而清(qing)除。