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(shi)電(dian)(dian)(dian)除(chu)塵(chen)器主要有兩種結構形(xing)(xing)式(shi)，一種是(shi)使用耐腐蝕導(dao)電(dian)(dian)(dian)材(cai)(cai)料(liao)（可(ke)以(yi)為導(dao)電(dian)(dian)(dian)性(xing)能優良的的非金(jin)屬(shu)材(cai)(cai)料(liao)或(huo)具有耐腐蝕特(te)性(xing)的金(jin)屬(shu)材(cai)(cai)料(liao)）做(zuo)(zuo)集(ji)塵(chen)極(ji)，另一種是(shi)用通(tong)過噴(pen)水或(huo)溢(yi)流(liu)水形(xing)(xing)成導(dao)電(dian)(dian)(dian)水膜，利用不導(dao)電(dian)(dian)(dian)的非金(jin)屬(shu)材(cai)(cai)料(liao)做(zuo)(zuo)集(ji)塵(chen)極(ji)。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原(yuan)理相同，都是(shi)靠(kao)高(gao)(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得(de)粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后(hou)的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)(de)(de)(de)作用(yong)下到(dao)達集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水很低的(de)(de)(de)(de)干(gan)(gan)氣體(ti)，濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水較高(gao)(gao)乃至飽和的(de)(de)(de)(de)濕氣體(ti)。在(zai)對集(ji)(ji)塵(chen)(chen)(chen)(chen)板(ban)/管上捕集(ji)(ji)到(dao)的(de)(de)(de)(de)粉(fen)塵(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)方式(shi)(shi)上WESP與DESP有較大區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采用(yong)機(ji)械振打或聲波清(qing)灰(hui)(hui)等方式(shi)(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)極(ji)上的(de)(de)(de)(de)積灰(hui)(hui)，而(er)濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則(ze)采用(yong)定期沖洗的(de)(de)(de)(de)方式(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)(de)流(liu)動而(er)清(qing)除(chu)(chu)。