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)(dian)除塵(chen)器(qi)主要有(you)(you)兩(liang)種結(jie)構形式，一種是(shi)使用耐腐(fu)蝕導電(dian)(dian)材(cai)(cai)料(liao)(liao)（可以為導電(dian)(dian)性(xing)能優良的(de)的(de)非金(jin)屬(shu)材(cai)(cai)料(liao)(liao)或具有(you)(you)耐腐(fu)蝕特(te)性(xing)的(de)金(jin)屬(shu)材(cai)(cai)料(liao)(liao)）做集(ji)塵(chen)極，另一種是(shi)用通過噴(pen)水(shui)或溢流水(shui)形成導電(dian)(dian)水(shui)膜，利用不導電(dian)(dian)的(de)非金(jin)屬(shu)材(cai)(cai)料(liao)(liao)做集(ji)塵(chen)極。

收塵(chen)原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)(qi)和(he)與(yu)干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)(qi)的(de)收(shou)塵(chen)(chen)原理相同，都是(shi)靠高壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后(hou)的(de)粉(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場力的(de)作用下到達集塵(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)(qi)主要處(chu)理含水(shui)很(hen)低的(de)干(gan)(gan)氣體(ti)(ti)，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)(qi)主要處(chu)理含水(shui)較(jiao)高乃至飽(bao)和(he)的(de)濕(shi)氣體(ti)(ti)。在(zai)對集塵(chen)(chen)板/管(guan)上(shang)(shang)捕(bu)集到的(de)粉(fen)塵(chen)(chen)清(qing)除方(fang)式(shi)(shi)上(shang)(shang)WESP與(yu)DESP有(you)較(jiao)大區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)(qi)一般采用機械振打或聲波清(qing)灰等(deng)方(fang)式(shi)(shi)清(qing)除電(dian)(dian)(dian)(dian)(dian)極上(shang)(shang)的(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)(qi)則采用定期沖洗的(de)方(fang)式(shi)(shi)，使粉(fen)塵(chen)(chen)隨(sui)著沖刷液的(de)流動(dong)而清(qing)除。