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(qi)主要有(you)兩(liang)種(zhong)(zhong)結構形式(shi)，一種(zhong)(zhong)是(shi)使用(yong)耐(nai)腐(fu)蝕導(dao)電材(cai)料(liao)(liao)（可以為導(dao)電性能優良(liang)的的非(fei)金(jin)屬材(cai)料(liao)(liao)或(huo)具有(you)耐(nai)腐(fu)蝕特性的金(jin)屬材(cai)料(liao)(liao)）做集塵(chen)極，另一種(zhong)(zhong)是(shi)用(yong)通過(guo)噴水或(huo)溢流水形成(cheng)導(dao)電水膜，利用(yong)不(bu)導(dao)電的非(fei)金(jin)屬材(cai)料(liao)(liao)做集塵(chen)極。

收塵原理(li)

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器和(he)與干式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器的(de)(de)(de)收(shou)塵(chen)(chen)原理(li)相同，都是靠(kao)高(gao)壓(ya)電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)下(xia)到(dao)達(da)集(ji)塵(chen)(chen)板/管(guan)(guan)。干式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)器主(zhu)要處理(li)含(han)水很低的(de)(de)(de)干氣體(ti)，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器主(zhu)要處理(li)含(han)水較(jiao)高(gao)乃(nai)至飽和(he)的(de)(de)(de)濕(shi)(shi)氣體(ti)。在(zai)對集(ji)塵(chen)(chen)板/管(guan)(guan)上(shang)捕(bu)集(ji)到(dao)的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)(shi)上(shang)WESP與DESP有較(jiao)大區別，干式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器一(yi)般(ban)采用(yong)機械振(zhen)打或聲(sheng)波清灰(hui)等方式(shi)(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)(de)積灰(hui)，而濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器則采用(yong)定期沖(chong)洗的(de)(de)(de)方式(shi)(shi)(shi)，使粉(fen)(fen)塵(chen)(chen)隨著沖(chong)刷液的(de)(de)(de)流動(dong)而清除(chu)(chu)(chu)。