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。

濕式電除塵(chen)器主要有兩種(zhong)結(jie)構(gou)形(xing)式，一(yi)種(zhong)是使用耐腐(fu)蝕(shi)(shi)導電材(cai)(cai)(cai)料(liao)(liao)（可(ke)以(yi)為導電性(xing)能(neng)優良的的非金屬(shu)材(cai)(cai)(cai)料(liao)(liao)或(huo)具有耐腐(fu)蝕(shi)(shi)特(te)性(xing)的金屬(shu)材(cai)(cai)(cai)料(liao)(liao)）做集塵(chen)極(ji)，另一(yi)種(zhong)是用通過噴水或(huo)溢流水形(xing)成導電水膜，利用不導電的非金屬(shu)材(cai)(cai)(cai)料(liao)(liao)做集塵(chen)極(ji)。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原理(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作用下到達集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)(ban)/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水很低的(de)(de)干(gan)氣體(ti)，濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水較高乃至(zhi)飽和的(de)(de)濕氣體(ti)。在(zai)對集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)(ban)/管上(shang)捕集(ji)(ji)到的(de)(de)粉塵(chen)(chen)(chen)(chen)清除(chu)方(fang)式(shi)(shi)上(shang)WESP與DESP有較大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采用機械(xie)振(zhen)打或聲波清灰(hui)等方(fang)式(shi)(shi)清除(chu)電(dian)(dian)(dian)(dian)(dian)(dian)極上(shang)的(de)(de)積灰(hui)，而濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用定期沖洗的(de)(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)隨著沖刷液(ye)的(de)(de)流動而清除(chu)。