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)要有兩種結構形式，一種是使用(yong)耐(nai)腐蝕導電(dian)材料(liao)(liao)（可以為導電(dian)性能優良的(de)的(de)非金(jin)屬材料(liao)(liao)或(huo)具有耐(nai)腐蝕特(te)性的(de)金(jin)屬材料(liao)(liao)）做集塵極(ji)，另一種是用(yong)通(tong)過噴水(shui)(shui)或(huo)溢流水(shui)(shui)形成(cheng)導電(dian)水(shui)(shui)膜，利用(yong)不導電(dian)的(de)非金(jin)屬材料(liao)(liao)做集塵極(ji)。

收塵原理

濕式(shi)(shi)(shi)(shi)(shi)電除塵(chen)(chen)(chen)(chen)(chen)(chen)器和(he)與干(gan)式(shi)(shi)(shi)(shi)(shi)電除塵(chen)(chen)(chen)(chen)(chen)(chen)器的收塵(chen)(chen)(chen)(chen)(chen)(chen)原理(li)相(xiang)同，都是靠高壓電暈放(fang)電使得粉(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)荷電，荷電后的粉(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)在(zai)電場力的作用下到達集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)(shi)(shi)電收塵(chen)(chen)(chen)(chen)(chen)(chen)器主要(yao)處理(li)含(han)(han)水很低的干(gan)氣體，濕式(shi)(shi)(shi)(shi)(shi)電除塵(chen)(chen)(chen)(chen)(chen)(chen)器主要(yao)處理(li)含(han)(han)水較(jiao)高乃至飽和(he)的濕氣體。在(zai)對集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)板(ban)/管上(shang)捕集(ji)到的粉(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)清除方(fang)式(shi)(shi)(shi)(shi)(shi)上(shang)WESP與DESP有較(jiao)大區(qu)別，干(gan)式(shi)(shi)(shi)(shi)(shi)電除塵(chen)(chen)(chen)(chen)(chen)(chen)器一般采用機(ji)械(xie)振打或聲波清灰等方(fang)式(shi)(shi)(shi)(shi)(shi)清除電極上(shang)的積灰，而濕式(shi)(shi)(shi)(shi)(shi)電除塵(chen)(chen)(chen)(chen)(chen)(chen)器則采用定期沖(chong)洗的方(fang)式(shi)(shi)(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)(chen)(chen)隨著沖(chong)刷液的流動而清除。