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)式電(dian)(dian)除塵(chen)器主要有兩種(zhong)結構形(xing)式，一(yi)種(zhong)是使用耐腐(fu)蝕(shi)導(dao)(dao)電(dian)(dian)材料（可(ke)以為(wei)導(dao)(dao)電(dian)(dian)性能(neng)優良的的非(fei)金屬材料或(huo)具有耐腐(fu)蝕(shi)特(te)性的金屬材料）做(zuo)集塵(chen)極，另一(yi)種(zhong)是用通(tong)過噴水或(huo)溢流水形(xing)成導(dao)(dao)電(dian)(dian)水膜，利用不導(dao)(dao)電(dian)(dian)的非(fei)金屬材料做(zuo)集塵(chen)極。

收塵原理

濕式(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)和(he)與干式(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)的(de)收(shou)塵(chen)(chen)(chen)原(yuan)理(li)相同，都是靠高壓電(dian)(dian)暈放電(dian)(dian)使(shi)(shi)得粉塵(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉塵(chen)(chen)(chen)在電(dian)(dian)場力的(de)作用下到達集(ji)塵(chen)(chen)(chen)板/管。干式(shi)電(dian)(dian)收(shou)塵(chen)(chen)(chen)器(qi)(qi)主要(yao)處(chu)理(li)含水很低的(de)干氣體(ti)，濕式(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)主要(yao)處(chu)理(li)含水較(jiao)高乃(nai)至(zhi)飽和(he)的(de)濕氣體(ti)。在對(dui)集(ji)塵(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)粉塵(chen)(chen)(chen)清除(chu)(chu)(chu)方式(shi)上(shang)WESP與DESP有較(jiao)大區別，干式(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)一般采用機械振打或聲波清灰等方式(shi)清除(chu)(chu)(chu)電(dian)(dian)極上(shang)的(de)積灰，而濕式(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)則(ze)采用定期沖(chong)洗的(de)方式(shi)，使(shi)(shi)粉塵(chen)(chen)(chen)隨著沖(chong)刷(shua)液的(de)流動而清除(chu)(chu)(chu)。