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)除(chu)塵器主(zhu)要有兩種結(jie)構形(xing)式，一種是使(shi)用耐腐(fu)蝕導電(dian)材料(liao)(liao)（可以為導電(dian)性能優良(liang)的(de)的(de)非金(jin)(jin)(jin)屬材料(liao)(liao)或(huo)具(ju)有耐腐(fu)蝕特性的(de)金(jin)(jin)(jin)屬材料(liao)(liao)）做(zuo)集塵極(ji)，另(ling)一種是用通(tong)過噴(pen)水(shui)(shui)或(huo)溢流水(shui)(shui)形(xing)成導電(dian)水(shui)(shui)膜(mo)，利用不導電(dian)的(de)非金(jin)(jin)(jin)屬材料(liao)(liao)做(zuo)集塵極(ji)。

收塵原理(li)

濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器和與干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器的(de)(de)收塵(chen)(chen)(chen)(chen)原理(li)相(xiang)同，都是靠高壓(ya)電(dian)(dian)暈放電(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)在電(dian)(dian)場力的(de)(de)作用下到達集(ji)塵(chen)(chen)(chen)(chen)板/管。干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器主(zhu)(zhu)要處(chu)理(li)含水很低的(de)(de)干(gan)(gan)氣(qi)體，濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器主(zhu)(zhu)要處(chu)理(li)含水較(jiao)高乃至飽和的(de)(de)濕(shi)氣(qi)體。在對集(ji)塵(chen)(chen)(chen)(chen)板/管上捕集(ji)到的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清(qing)(qing)除方(fang)式(shi)(shi)(shi)上WESP與DESP有(you)較(jiao)大區別，干(gan)(gan)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器一般采用機械振(zhen)打或聲波(bo)清(qing)(qing)灰(hui)等方(fang)式(shi)(shi)(shi)清(qing)(qing)除電(dian)(dian)極上的(de)(de)積灰(hui)，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器則采用定(ding)期沖洗的(de)(de)方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷(shua)液的(de)(de)流動(dong)而清(qing)(qing)除。