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)式電除(chu)塵器主要有(you)兩種結構(gou)形(xing)式，一(yi)種是(shi)使用(yong)(yong)耐腐(fu)(fu)蝕(shi)導電材料（可以為(wei)導電性能優良的(de)的(de)非金屬(shu)(shu)材料或(huo)具有(you)耐腐(fu)(fu)蝕(shi)特性的(de)金屬(shu)(shu)材料）做集塵極，另一(yi)種是(shi)用(yong)(yong)通過(guo)噴(pen)水(shui)或(huo)溢流水(shui)形(xing)成導電水(shui)膜，利用(yong)(yong)不(bu)導電的(de)非金屬(shu)(shu)材料做集塵極。

收塵原理

濕(shi)式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)和與干式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)(chen)(chen)原理相同，都是靠(kao)高壓電(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(yong)下到達集塵(chen)(chen)(chen)(chen)板/管。干式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要處理含水很低的(de)(de)干氣(qi)體(ti)，濕(shi)式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)主要處理含水較(jiao)高乃至飽和的(de)(de)濕(shi)氣(qi)體(ti)。在對集塵(chen)(chen)(chen)(chen)板/管上(shang)捕集到的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清除(chu)方式(shi)(shi)(shi)(shi)(shi)上(shang)WESP與DESP有較(jiao)大(da)區別(bie)，干式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)一般(ban)采用(yong)機械振打或(huo)聲波清灰等方式(shi)(shi)(shi)(shi)(shi)清除(chu)電(dian)(dian)極上(shang)的(de)(de)積灰，而(er)濕(shi)式(shi)(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)(de)方式(shi)(shi)(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)流動而(er)清除(chu)。