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(chu)塵器主要有兩種結構形(xing)式(shi)，一種是使(shi)用(yong)耐腐蝕導(dao)電(dian)材料(liao)（可以為導(dao)電(dian)性能優良的(de)(de)的(de)(de)非金(jin)屬材料(liao)或(huo)具有耐腐蝕特性的(de)(de)金(jin)屬材料(liao)）做(zuo)(zuo)集塵極，另一種是用(yong)通過噴水(shui)或(huo)溢流水(shui)形(xing)成導(dao)電(dian)水(shui)膜，利用(yong)不導(dao)電(dian)的(de)(de)非金(jin)屬材料(liao)做(zuo)(zuo)集塵極。

收(shou)塵原理(li)

濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)和(he)與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)的(de)(de)收塵(chen)(chen)原理(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用下到(dao)達集(ji)塵(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)(han)水很(hen)低的(de)(de)干(gan)氣體，濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)(han)水較高乃至飽和(he)的(de)(de)濕(shi)(shi)(shi)氣體。在對集(ji)塵(chen)(chen)板(ban)/管上捕集(ji)到(dao)的(de)(de)粉塵(chen)(chen)清(qing)(qing)除(chu)(chu)方式(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)一般(ban)采用機械振打或(huo)聲波(bo)清(qing)(qing)灰等方式(shi)(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)(dian)(dian)極上的(de)(de)積灰，而(er)濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)則采用定期沖洗(xi)的(de)(de)方式(shi)(shi)，使粉塵(chen)(chen)隨著沖刷液的(de)(de)流動而(er)清(qing)(qing)除(chu)(chu)。