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(shi)式(shi)電(dian)除(chu)塵(chen)器主要有兩種(zhong)結構形式(shi)，一(yi)種(zhong)是使用耐腐(fu)蝕導(dao)電(dian)材(cai)(cai)料(liao)(liao)（可以為導(dao)電(dian)性能優良的(de)(de)的(de)(de)非(fei)金屬材(cai)(cai)料(liao)(liao)或具有耐腐(fu)蝕特(te)性的(de)(de)金屬材(cai)(cai)料(liao)(liao)）做(zuo)集塵(chen)極，另一(yi)種(zhong)是用通過(guo)噴水或溢流水形成(cheng)導(dao)電(dian)水膜，利用不導(dao)電(dian)的(de)(de)非(fei)金屬材(cai)(cai)料(liao)(liao)做(zuo)集塵(chen)極。

收(shou)塵原理

濕(shi)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)和(he)與干(gan)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)的(de)收塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)原理相(xiang)同(tong)，都是靠高(gao)壓(ya)電(dian)暈放電(dian)使得粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)荷電(dian)，荷電(dian)后(hou)的(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)在電(dian)場力的(de)作用(yong)下到(dao)達集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)板/管。干(gan)式(shi)電(dian)收塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)主(zhu)要處理含水很(hen)低(di)的(de)干(gan)氣體(ti)，濕(shi)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)主(zhu)要處理含水較(jiao)(jiao)高(gao)乃至飽和(he)的(de)濕(shi)氣體(ti)。在對(dui)集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)板/管上(shang)捕集(ji)到(dao)的(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)方(fang)式(shi)上(shang)WESP與DESP有較(jiao)(jiao)大(da)區別，干(gan)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)一般采用(yong)機械(xie)振打或(huo)聲(sheng)波清(qing)灰等方(fang)式(shi)清(qing)除(chu)(chu)電(dian)極(ji)上(shang)的(de)積灰，而濕(shi)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)方(fang)式(shi)，使粉(fen)(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)(chen)隨(sui)著(zhu)沖刷液(ye)的(de)流動而清(qing)除(chu)(chu)。