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(shi)電除塵(chen)器主要有兩(liang)種(zhong)結構形式(shi)，一種(zhong)是使(shi)用(yong)耐(nai)腐(fu)蝕導(dao)電材料(liao)（可(ke)以為導(dao)電性能優(you)良(liang)的(de)的(de)非金屬材料(liao)或具有耐(nai)腐(fu)蝕特(te)性的(de)金屬材料(liao)）做集塵(chen)極，另一種(zhong)是用(yong)通過噴水(shui)或溢(yi)流水(shui)形成導(dao)電水(shui)膜，利(li)用(yong)不導(dao)電的(de)非金屬材料(liao)做集塵(chen)極。

收塵原理(li)

濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)和(he)與干(gan)(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)(chen)原理相同，都是(shi)靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)場力的(de)(de)作用下到達集(ji)塵(chen)(chen)(chen)板/管。干(gan)(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處理含水很低的(de)(de)干(gan)(gan)(gan)氣體，濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)主要處理含水較高(gao)乃至飽和(he)的(de)(de)濕氣體。在(zai)(zai)對集(ji)塵(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)(de)粉(fen)塵(chen)(chen)(chen)清(qing)(qing)除(chu)(chu)(chu)(chu)方(fang)式(shi)(shi)(shi)上(shang)WESP與DESP有(you)較大區別，干(gan)(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)一(yi)般采用機械(xie)振打(da)或(huo)聲波清(qing)(qing)灰等方(fang)式(shi)(shi)(shi)清(qing)(qing)除(chu)(chu)(chu)(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)積(ji)灰，而濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)則采用定期沖(chong)洗的(de)(de)方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)隨著沖(chong)刷液的(de)(de)流(liu)動而清(qing)(qing)除(chu)(chu)(chu)(chu)。