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(chu)塵(chen)器主要有兩(liang)種結構形式(shi)，一(yi)種是(shi)使用耐腐蝕(shi)(shi)導電材(cai)料（可以為導電性能優(you)良的(de)的(de)非金屬材(cai)料或具有耐腐蝕(shi)(shi)特(te)性的(de)金屬材(cai)料）做集(ji)(ji)塵(chen)極，另一(yi)種是(shi)用通過噴(pen)水(shui)(shui)或溢(yi)流水(shui)(shui)形成導電水(shui)(shui)膜，利用不導電的(de)非金屬材(cai)料做集(ji)(ji)塵(chen)極。

收塵原理

濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)收塵(chen)(chen)(chen)(chen)原理(li)相同，都是(shi)靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(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)在(zai)電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)下到達集塵(chen)(chen)(chen)(chen)板/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含水很低的(de)(de)(de)干(gan)氣體，濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含水較(jiao)高乃(nai)至(zhi)飽(bao)和的(de)(de)(de)濕(shi)(shi)氣體。在(zai)對集塵(chen)(chen)(chen)(chen)板/管上捕集到的(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清(qing)除(chu)方式(shi)(shi)上WESP與DESP有(you)較(jiao)大區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)一般采用(yong)機械振打或聲波(bo)清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)電(dian)(dian)(dian)極上的(de)(de)(de)積(ji)灰(hui)，而濕(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗(xi)的(de)(de)(de)方式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)流(liu)動而清(qing)除(chu)。