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。

濕式電除(chu)塵器(qi)主要有兩種結構形式，一(yi)種是(shi)使(shi)用(yong)耐腐(fu)蝕導電材(cai)(cai)料(liao)（可(ke)以為(wei)導電性能優良的(de)的(de)非金(jin)屬(shu)(shu)材(cai)(cai)料(liao)或具(ju)有耐腐(fu)蝕特性的(de)金(jin)屬(shu)(shu)材(cai)(cai)料(liao)）做集塵極(ji)，另一(yi)種是(shi)用(yong)通(tong)過噴(pen)水或溢(yi)流水形成導電水膜，利用(yong)不(bu)導電的(de)非金(jin)屬(shu)(shu)材(cai)(cai)料(liao)做集塵極(ji)。

收(shou)塵(chen)原理(li)

濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)和與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)的(de)(de)收(shou)塵(chen)(chen)原理(li)相同，都是靠高壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得(de)粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)(de)作(zuo)用(yong)下到(dao)(dao)達(da)集(ji)塵(chen)(chen)板/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)水很低的(de)(de)干(gan)氣體(ti)，濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)水較高乃(nai)至飽和的(de)(de)濕氣體(ti)。在(zai)對集(ji)塵(chen)(chen)板/管上捕集(ji)到(dao)(dao)的(de)(de)粉(fen)塵(chen)(chen)清除(chu)(chu)(chu)(chu)方(fang)式(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)一般采(cai)用(yong)機械振(zhen)打或(huo)聲波清灰(hui)等方(fang)式(shi)(shi)(shi)清除(chu)(chu)(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)積灰(hui)，而濕式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)則(ze)采(cai)用(yong)定期沖(chong)洗(xi)的(de)(de)方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)隨著沖(chong)刷液(ye)的(de)(de)流動而清除(chu)(chu)(chu)(chu)。