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)塵器主要有兩種結構形(xing)(xing)式，一(yi)種是(shi)使用耐(nai)腐(fu)蝕(shi)導(dao)(dao)電(dian)材料（可以為導(dao)(dao)電(dian)性(xing)能優良的(de)的(de)非金(jin)(jin)屬材料或具有耐(nai)腐(fu)蝕(shi)特性(xing)的(de)金(jin)(jin)屬材料）做集塵極(ji)，另(ling)一(yi)種是(shi)用通過噴水或溢流水形(xing)(xing)成導(dao)(dao)電(dian)水膜，利用不(bu)導(dao)(dao)電(dian)的(de)非金(jin)(jin)屬材料做集塵極(ji)。

收塵(chen)原理(li)

濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)和(he)與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)(chen)(chen)(chen)原理相同，都是靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場(chang)力的(de)(de)作用下到(dao)達集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)器(qi)主(zhu)(zhu)要(yao)處理含(han)水(shui)很低(di)的(de)(de)干(gan)(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)主(zhu)(zhu)要(yao)處理含(han)水(shui)較高(gao)乃至飽和(he)的(de)(de)濕(shi)(shi)氣體(ti)。在對集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管(guan)上(shang)捕集(ji)到(dao)的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)清除(chu)方(fang)(fang)式(shi)(shi)上(shang)WESP與DESP有較大區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)一(yi)般采用機械振(zhen)打或聲波清灰等方(fang)(fang)式(shi)(shi)清除(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)積灰，而濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)則采用定期沖(chong)洗的(de)(de)方(fang)(fang)式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)(chen)隨著(zhu)沖(chong)刷液的(de)(de)流動而清除(chu)。