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)除塵(chen)(chen)器主要有(you)兩(liang)種結構形式，一(yi)種是(shi)使(shi)用(yong)(yong)耐腐蝕(shi)導電(dian)材(cai)(cai)料（可以為導電(dian)性能(neng)優良的(de)的(de)非金(jin)屬材(cai)(cai)料或具有(you)耐腐蝕(shi)特性的(de)金(jin)屬材(cai)(cai)料）做集塵(chen)(chen)極，另一(yi)種是(shi)用(yong)(yong)通過噴水(shui)或溢流水(shui)形成導電(dian)水(shui)膜，利(li)用(yong)(yong)不導電(dian)的(de)非金(jin)屬材(cai)(cai)料做集塵(chen)(chen)極。

收(shou)塵原理

濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)和與(yu)干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)原理相同，都是靠(kao)高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得(de)粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)作用(yong)(yong)下(xia)到達(da)集(ji)(ji)塵(chen)(chen)板(ban)/管。干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器(qi)主要處理含(han)水很低的(de)(de)干(gan)(gan)氣(qi)體(ti)，濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)主要處理含(han)水較高乃(nai)至飽和的(de)(de)濕(shi)(shi)氣(qi)體(ti)。在(zai)對集(ji)(ji)塵(chen)(chen)板(ban)/管上(shang)捕集(ji)(ji)到的(de)(de)粉(fen)塵(chen)(chen)清(qing)除(chu)(chu)方(fang)(fang)式(shi)上(shang)WESP與(yu)DESP有較大區別，干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)一般采用(yong)(yong)機械(xie)振打或聲波清(qing)灰(hui)等方(fang)(fang)式(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)(dian)極(ji)上(shang)的(de)(de)積灰(hui)，而濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)則采用(yong)(yong)定期沖洗的(de)(de)方(fang)(fang)式(shi)，使粉(fen)塵(chen)(chen)隨著沖刷液(ye)的(de)(de)流動而清(qing)除(chu)(chu)。