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)器主要有兩種結構形式，一(yi)種是使用(yong)耐(nai)腐蝕導(dao)(dao)電(dian)(dian)材(cai)(cai)料(liao)（可以為導(dao)(dao)電(dian)(dian)性能優良的的非(fei)金(jin)屬(shu)材(cai)(cai)料(liao)或具有耐(nai)腐蝕特性的金(jin)屬(shu)材(cai)(cai)料(liao)）做集(ji)(ji)塵(chen)極(ji)，另一(yi)種是用(yong)通過噴水或溢流水形成導(dao)(dao)電(dian)(dian)水膜，利用(yong)不(bu)導(dao)(dao)電(dian)(dian)的非(fei)金(jin)屬(shu)材(cai)(cai)料(liao)做集(ji)(ji)塵(chen)極(ji)。

收塵原理

濕(shi)(shi)(shi)式電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)和與(yu)干式電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原(yuan)理(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作用(yong)下到達集塵(chen)(chen)(chen)(chen)(chen)板(ban)/管。干式電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含(han)(han)水(shui)很(hen)低的(de)(de)干氣(qi)體(ti)，濕(shi)(shi)(shi)式電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)主要(yao)處(chu)理(li)含(han)(han)水(shui)較高乃至飽和的(de)(de)濕(shi)(shi)(shi)氣(qi)體(ti)。在對集塵(chen)(chen)(chen)(chen)(chen)板(ban)/管上(shang)捕集到的(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)清除方式上(shang)WESP與(yu)DESP有較大區別，干式電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)一般采用(yong)機械振打或聲波清灰等方式清除電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)積灰，而(er)濕(shi)(shi)(shi)式電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)則(ze)采用(yong)定期沖洗的(de)(de)方式，使(shi)粉(fen)塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液(ye)的(de)(de)流動(dong)而(er)清除。