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(chen)器主要有兩種(zhong)結構形式(shi)，一(yi)種(zhong)是使用(yong)耐腐蝕導(dao)(dao)電(dian)材(cai)(cai)料（可以為導(dao)(dao)電(dian)性(xing)能優良的(de)(de)的(de)(de)非(fei)金屬(shu)材(cai)(cai)料或(huo)具有耐腐蝕特(te)性(xing)的(de)(de)金屬(shu)材(cai)(cai)料）做集(ji)塵(chen)極(ji)，另一(yi)種(zhong)是用(yong)通過(guo)噴水或(huo)溢流水形成導(dao)(dao)電(dian)水膜，利用(yong)不導(dao)(dao)電(dian)的(de)(de)非(fei)金屬(shu)材(cai)(cai)料做集(ji)塵(chen)極(ji)。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器和與干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原理相同，都(dou)是(shi)靠(kao)高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)(de)作用下(xia)到(dao)(dao)達集塵(chen)(chen)(chen)(chen)(chen)板/管(guan)。干式(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器主(zhu)要處(chu)(chu)理含水很低的(de)(de)(de)干氣體，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器主(zhu)要處(chu)(chu)理含水較(jiao)高乃至飽(bao)和的(de)(de)(de)濕(shi)氣體。在對集塵(chen)(chen)(chen)(chen)(chen)板/管(guan)上(shang)捕集到(dao)(dao)的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)清(qing)(qing)除(chu)方式(shi)上(shang)WESP與DESP有較(jiao)大區別，干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器一般采用機械(xie)振打或聲波清(qing)(qing)灰等方式(shi)清(qing)(qing)除(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)(de)積(ji)灰，而濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)(chen)器則采用定期沖洗(xi)的(de)(de)(de)方式(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)(chen)隨著沖刷(shua)液的(de)(de)(de)流動(dong)而清(qing)(qing)除(chu)。