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)器主要有兩種結構形式(shi)，一(yi)種是(shi)使用(yong)(yong)(yong)耐腐蝕導(dao)(dao)電材料(liao)（可以為導(dao)(dao)電性能優良(liang)的的非(fei)金屬材料(liao)或(huo)具有耐腐蝕特性的金屬材料(liao)）做集(ji)塵(chen)極，另(ling)一(yi)種是(shi)用(yong)(yong)(yong)通(tong)過噴(pen)水(shui)或(huo)溢流水(shui)形成(cheng)導(dao)(dao)電水(shui)膜，利用(yong)(yong)(yong)不導(dao)(dao)電的非(fei)金屬材料(liao)做集(ji)塵(chen)極。

收塵原理

濕式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和與(yu)干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原理(li)相同，都是靠高(gao)壓電(dian)(dian)暈(yun)放電(dian)(dian)使(shi)得(de)粉塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)在電(dian)(dian)場(chang)力的(de)(de)作(zuo)用下到達集塵(chen)(chen)(chen)(chen)板/管(guan)。干式(shi)(shi)(shi)電(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水很(hen)低的(de)(de)干氣體(ti)，濕式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水較(jiao)高(gao)乃至飽和的(de)(de)濕氣體(ti)。在對集塵(chen)(chen)(chen)(chen)板/管(guan)上捕集到的(de)(de)粉塵(chen)(chen)(chen)(chen)清(qing)(qing)除(chu)(chu)方(fang)式(shi)(shi)(shi)上WESP與(yu)DESP有較(jiao)大(da)區別，干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采用機械(xie)振打或聲波清(qing)(qing)灰(hui)等方(fang)式(shi)(shi)(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)極上的(de)(de)積灰(hui)，而濕式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用定期沖洗的(de)(de)方(fang)式(shi)(shi)(shi)，使(shi)粉塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)流動而清(qing)(qing)除(chu)(chu)。