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(shi)式電(dian)除塵器主要有兩(liang)種結構形式，一種是使用耐腐蝕導(dao)電(dian)材(cai)(cai)料(liao)(liao)（可以為導(dao)電(dian)性能優良的(de)的(de)非(fei)金屬(shu)材(cai)(cai)料(liao)(liao)或具(ju)有耐腐蝕特性的(de)金屬(shu)材(cai)(cai)料(liao)(liao)）做集塵極(ji)，另一種是用通過噴水或溢流(liu)水形成導(dao)電(dian)水膜，利用不導(dao)電(dian)的(de)非(fei)金屬(shu)材(cai)(cai)料(liao)(liao)做集塵極(ji)。

收塵原(yuan)理

濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)和與(yu)干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原理(li)相同(tong)，都是靠(kao)高(gao)壓電(dian)(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)(de)粉塵(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用下到達(da)集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)理(li)含(han)水很(hen)低的(de)(de)(de)(de)干(gan)氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)理(li)含(han)水較(jiao)高(gao)乃至飽和的(de)(de)(de)(de)濕(shi)氣體(ti)。在對集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管上捕集(ji)(ji)到的(de)(de)(de)(de)粉塵(chen)(chen)(chen)(chen)清除方(fang)式(shi)上WESP與(yu)DESP有較(jiao)大區別，干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)一般(ban)采(cai)用機械振打或聲波清灰等(deng)方(fang)式(shi)清除電(dian)(dian)(dian)(dian)極(ji)上的(de)(de)(de)(de)積灰，而(er)濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)則(ze)采(cai)用定期沖(chong)洗的(de)(de)(de)(de)方(fang)式(shi)，使粉塵(chen)(chen)(chen)(chen)隨著(zhu)沖(chong)刷液的(de)(de)(de)(de)流動而(er)清除。