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。

濕式電(dian)除塵器主要有兩種(zhong)結構形(xing)式，一種(zhong)是(shi)使用(yong)(yong)耐(nai)腐(fu)蝕導電(dian)材(cai)(cai)(cai)料(liao)(liao)（可(ke)以為導電(dian)性能優良的的非金屬(shu)材(cai)(cai)(cai)料(liao)(liao)或具有耐(nai)腐(fu)蝕特性的金屬(shu)材(cai)(cai)(cai)料(liao)(liao)）做集(ji)塵極(ji)，另一種(zhong)是(shi)用(yong)(yong)通過(guo)噴水或溢(yi)流水形(xing)成導電(dian)水膜，利用(yong)(yong)不導電(dian)的非金屬(shu)材(cai)(cai)(cai)料(liao)(liao)做集(ji)塵極(ji)。

收塵原理

濕式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器和(he)與干式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器的(de)收塵(chen)(chen)(chen)(chen)原理(li)相(xiang)同，都是靠高壓電(dian)(dian)暈放電(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的(de)粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)場力(li)的(de)作用下到達集(ji)塵(chen)(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器主要(yao)處理(li)含水很低的(de)干氣體(ti)，濕式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器主要(yao)處理(li)含水較高乃至飽和(he)的(de)濕氣體(ti)。在(zai)對集(ji)塵(chen)(chen)(chen)(chen)板/管上(shang)捕(bu)集(ji)到的(de)粉(fen)塵(chen)(chen)(chen)(chen)清除(chu)(chu)(chu)(chu)(chu)方式(shi)(shi)上(shang)WESP與DESP有(you)較大區(qu)別，干式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器一般采用機械(xie)振打或聲波清灰等方式(shi)(shi)清除(chu)(chu)(chu)(chu)(chu)電(dian)(dian)極上(shang)的(de)積灰，而濕式(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器則采用定(ding)期沖洗(xi)的(de)方式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液(ye)的(de)流動而清除(chu)(chu)(chu)(chu)(chu)。