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)除塵器(qi)主要有(you)兩種結構形式，一種是使用耐腐蝕導電(dian)材(cai)料(liao)（可以為導電(dian)性能優(you)良的的非(fei)金(jin)(jin)屬(shu)材(cai)料(liao)或具有(you)耐腐蝕特性的金(jin)(jin)屬(shu)材(cai)料(liao)）做集塵極，另一種是用通過噴水或溢流水形成導電(dian)水膜，利用不導電(dian)的非(fei)金(jin)(jin)屬(shu)材(cai)料(liao)做集塵極。

收塵原理

濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器和與(yu)干式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器的(de)(de)(de)收塵(chen)(chen)(chen)原理(li)相(xiang)同，都(dou)是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)作用(yong)下到達集(ji)(ji)塵(chen)(chen)(chen)板/管。干式電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器主要處理(li)含(han)水很低的(de)(de)(de)干氣(qi)體，濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器主要處理(li)含(han)水較(jiao)高乃至飽和的(de)(de)(de)濕(shi)(shi)氣(qi)體。在對集(ji)(ji)塵(chen)(chen)(chen)板/管上(shang)捕集(ji)(ji)到的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)清除(chu)(chu)(chu)(chu)方式上(shang)WESP與(yu)DESP有較(jiao)大(da)區別，干式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器一般采用(yong)機械振(zhen)打或聲(sheng)波清灰等方式清除(chu)(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)(de)積灰，而濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)器則采用(yong)定期沖(chong)洗的(de)(de)(de)方式，使粉(fen)塵(chen)(chen)(chen)隨(sui)著(zhu)沖(chong)刷液的(de)(de)(de)流動而清除(chu)(chu)(chu)(chu)。