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)(shi)電(dian)除塵器主要有兩種結構形(xing)式(shi)(shi)，一種是使(shi)用耐(nai)腐蝕導(dao)(dao)電(dian)材(cai)(cai)料（可(ke)以為導(dao)(dao)電(dian)性(xing)能優良(liang)的(de)的(de)非金屬材(cai)(cai)料或(huo)具有耐(nai)腐蝕特性(xing)的(de)金屬材(cai)(cai)料）做集(ji)塵極，另一種是用通過(guo)噴水或(huo)溢流水形(xing)成導(dao)(dao)電(dian)水膜，利用不導(dao)(dao)電(dian)的(de)非金屬材(cai)(cai)料做集(ji)塵極。

收塵原理(li)

濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)和與(yu)(yu)干式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)的(de)(de)收(shou)塵(chen)(chen)原(yuan)理相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)得(de)粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)在電(dian)(dian)(dian)(dian)場(chang)力(li)的(de)(de)作用(yong)下到達集塵(chen)(chen)板/管。干式(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)主要(yao)處理含(han)水(shui)很低(di)的(de)(de)干氣(qi)體，濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)主要(yao)處理含(han)水(shui)較高乃至飽和的(de)(de)濕(shi)(shi)(shi)氣(qi)體。在對集塵(chen)(chen)板/管上捕集到的(de)(de)粉(fen)塵(chen)(chen)清(qing)(qing)除(chu)(chu)方式(shi)上WESP與(yu)(yu)DESP有較大區別，干式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)一(yi)般采用(yong)機械振打或(huo)聲波(bo)清(qing)(qing)灰(hui)等(deng)方式(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)(dian)(dian)極上的(de)(de)積灰(hui)，而濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)(de)方式(shi)，使(shi)粉(fen)塵(chen)(chen)隨著沖刷液的(de)(de)流動而清(qing)(qing)除(chu)(chu)。