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)除塵(chen)(chen)器主要有兩種結構(gou)形式，一(yi)(yi)種是(shi)使用耐(nai)腐(fu)蝕導電(dian)材(cai)料（可以為導電(dian)性能優良的(de)(de)的(de)(de)非(fei)金屬材(cai)料或具有耐(nai)腐(fu)蝕特性的(de)(de)金屬材(cai)料）做集(ji)塵(chen)(chen)極，另一(yi)(yi)種是(shi)用通過噴(pen)水(shui)或溢(yi)流水(shui)形成導電(dian)水(shui)膜(mo)，利用不導電(dian)的(de)(de)非(fei)金屬材(cai)料做集(ji)塵(chen)(chen)極。

收塵原理

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器和與干式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)收(shou)塵(chen)(chen)(chen)(chen)原理相同，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得(de)粉(fen)(fen)(fen)(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)粉(fen)(fen)(fen)(fen)塵(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)作用(yong)下(xia)到達集(ji)塵(chen)(chen)(chen)(chen)板/管。干式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器主要處(chu)(chu)理含(han)水很低的(de)干氣體，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器主要處(chu)(chu)理含(han)水較高乃至飽和的(de)濕(shi)(shi)氣體。在對集(ji)塵(chen)(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)粉(fen)(fen)(fen)(fen)塵(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)方式(shi)(shi)(shi)上(shang)WESP與DESP有(you)較大區別(bie)，干式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器一般采(cai)用(yong)機(ji)械振打或聲波清(qing)灰等方式(shi)(shi)(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)極上(shang)的(de)積灰，而(er)濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器則采(cai)用(yong)定期沖洗的(de)方式(shi)(shi)(shi)，使粉(fen)(fen)(fen)(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)流動(dong)而(er)清(qing)除(chu)(chu)(chu)。