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(shi)電(dian)除塵器主(zhu)要有兩種結構形式(shi)，一種是使(shi)用(yong)(yong)耐腐(fu)蝕(shi)導(dao)電(dian)材(cai)料(liao)（可以為導(dao)電(dian)性能優良(liang)的(de)的(de)非(fei)金(jin)屬(shu)材(cai)料(liao)或具(ju)有耐腐(fu)蝕(shi)特性的(de)金(jin)屬(shu)材(cai)料(liao)）做集塵極，另一種是用(yong)(yong)通(tong)過噴水或溢流水形成導(dao)電(dian)水膜，利用(yong)(yong)不(bu)導(dao)電(dian)的(de)非(fei)金(jin)屬(shu)材(cai)料(liao)做集塵極。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)的(de)收塵(chen)(chen)原(yuan)理(li)相同，都是靠高壓電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使(shi)得粉(fen)(fen)塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)粉(fen)(fen)塵(chen)(chen)在電(dian)(dian)(dian)場力的(de)作(zuo)用(yong)下(xia)到達集塵(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)器(qi)(qi)主要處理(li)含水(shui)很低的(de)干(gan)氣體(ti)，濕式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)主要處理(li)含水(shui)較高乃至(zhi)飽和的(de)濕氣體(ti)。在對集塵(chen)(chen)板/管(guan)上(shang)捕集到的(de)粉(fen)(fen)塵(chen)(chen)清除(chu)方(fang)式(shi)(shi)上(shang)WESP與DESP有較大區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)一般采用(yong)機械振打或聲(sheng)波(bo)清灰等方(fang)式(shi)(shi)清除(chu)電(dian)(dian)(dian)極上(shang)的(de)積灰，而(er)濕式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)則采用(yong)定期沖洗的(de)方(fang)式(shi)(shi)，使(shi)粉(fen)(fen)塵(chen)(chen)隨著(zhu)沖刷液的(de)流動而(er)清除(chu)。