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(dian)(dian)(dian)除塵(chen)器主要有兩種(zhong)(zhong)結構形式(shi)，一種(zhong)(zhong)是(shi)使用(yong)(yong)耐腐蝕導(dao)電(dian)(dian)(dian)材(cai)料（可以為(wei)導(dao)電(dian)(dian)(dian)性能優良的(de)的(de)非金(jin)(jin)屬材(cai)料或(huo)具有耐腐蝕特性的(de)金(jin)(jin)屬材(cai)料）做集塵(chen)極，另一種(zhong)(zhong)是(shi)用(yong)(yong)通過噴水或(huo)溢流水形成導(dao)電(dian)(dian)(dian)水膜，利用(yong)(yong)不(bu)導(dao)電(dian)(dian)(dian)的(de)非金(jin)(jin)屬材(cai)料做集塵(chen)極。

收(shou)塵原理(li)

濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)和與(yu)干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)的(de)(de)(de)收(shou)塵(chen)(chen)原理相同，都是靠高壓電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使(shi)得粉塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)(de)粉塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)場力的(de)(de)(de)作用下到達集塵(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)主要(yao)處理含水很低的(de)(de)(de)干(gan)(gan)氣(qi)體(ti)，濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)主要(yao)處理含水較高乃(nai)至飽和的(de)(de)(de)濕氣(qi)體(ti)。在(zai)(zai)對(dui)集塵(chen)(chen)板/管(guan)上(shang)捕集到的(de)(de)(de)粉塵(chen)(chen)清(qing)除(chu)方(fang)(fang)式(shi)(shi)(shi)上(shang)WESP與(yu)DESP有較大區別，干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)一般采用機械(xie)振打或聲波清(qing)灰(hui)等方(fang)(fang)式(shi)(shi)(shi)清(qing)除(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)(de)積灰(hui)，而(er)濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)則(ze)采用定期沖洗的(de)(de)(de)方(fang)(fang)式(shi)(shi)(shi)，使(shi)粉塵(chen)(chen)隨著沖刷(shua)液的(de)(de)(de)流動(dong)而(er)清(qing)除(chu)。