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(dian)除塵器(qi)主要(yao)有兩種(zhong)結(jie)構形式(shi)，一種(zhong)是使(shi)用耐(nai)腐蝕導(dao)電(dian)材(cai)料(liao)(liao)（可以(yi)為導(dao)電(dian)性能優良的(de)的(de)非金屬材(cai)料(liao)(liao)或具有耐(nai)腐蝕特性的(de)金屬材(cai)料(liao)(liao)）做(zuo)集(ji)塵極，另一種(zhong)是用通(tong)過噴水或溢流水形成導(dao)電(dian)水膜，利用不導(dao)電(dian)的(de)非金屬材(cai)料(liao)(liao)做(zuo)集(ji)塵極。

收塵原理(li)

濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)和(he)與干式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)(chen)原理相同，都(dou)是(shi)靠高(gao)壓(ya)電(dian)(dian)暈(yun)放電(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)場力(li)的(de)(de)作(zuo)用下到(dao)達集(ji)(ji)塵(chen)(chen)(chen)板(ban)(ban)/管。干式(shi)(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要(yao)處(chu)理含(han)水很低的(de)(de)干氣體，濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)主要(yao)處(chu)理含(han)水較高(gao)乃至飽和(he)的(de)(de)濕(shi)氣體。在對集(ji)(ji)塵(chen)(chen)(chen)板(ban)(ban)/管上捕集(ji)(ji)到(dao)的(de)(de)粉(fen)塵(chen)(chen)(chen)清(qing)(qing)(qing)除(chu)(chu)方式(shi)(shi)(shi)(shi)上WESP與DESP有較大(da)區(qu)別，干式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)一般采(cai)用機械振打或聲波(bo)清(qing)(qing)(qing)灰等(deng)方式(shi)(shi)(shi)(shi)清(qing)(qing)(qing)除(chu)(chu)電(dian)(dian)極上的(de)(de)積(ji)灰，而濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)則采(cai)用定期沖(chong)洗(xi)的(de)(de)方式(shi)(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)隨著沖(chong)刷液的(de)(de)流(liu)動而清(qing)(qing)(qing)除(chu)(chu)。