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(chen)器主要有兩種結(jie)構形式，一(yi)種是使用耐(nai)腐蝕導電(dian)材料(liao)（可以為導電(dian)性(xing)能優良的的非(fei)(fei)金(jin)屬(shu)(shu)材料(liao)或(huo)(huo)具有耐(nai)腐蝕特性(xing)的金(jin)屬(shu)(shu)材料(liao)）做集塵(chen)極，另一(yi)種是用通(tong)過噴水或(huo)(huo)溢流水形成(cheng)導電(dian)水膜，利用不(bu)導電(dian)的非(fei)(fei)金(jin)屬(shu)(shu)材料(liao)做集塵(chen)極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和(he)與干(gan)式(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的收塵(chen)(chen)(chen)(chen)原理(li)相同，都是靠(kao)高壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的粉塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)場力的作用下到(dao)達集塵(chen)(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水(shui)很低的干(gan)氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含(han)水(shui)較高乃(nai)至(zhi)飽和(he)的濕(shi)氣體(ti)。在(zai)對集塵(chen)(chen)(chen)(chen)板/管(guan)上捕集到(dao)的粉塵(chen)(chen)(chen)(chen)清除(chu)方式(shi)(shi)上WESP與DESP有(you)較大區別，干(gan)式(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采用機械(xie)振打或(huo)聲波清灰等方式(shi)(shi)清除(chu)電(dian)(dian)極上的積灰，而(er)濕(shi)式(shi)(shi)電(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用定期沖洗(xi)的方式(shi)(shi)，使(shi)粉塵(chen)(chen)(chen)(chen)隨著沖刷(shua)液的流動而(er)清除(chu)。