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)式電除塵器主要有(you)兩種(zhong)結構形式，一種(zhong)是使(shi)用(yong)(yong)耐(nai)腐蝕導(dao)電材料（可以為導(dao)電性能(neng)優良(liang)的的非(fei)金屬材料或(huo)具(ju)有(you)耐(nai)腐蝕特性的金屬材料）做集塵極，另一種(zhong)是用(yong)(yong)通(tong)過噴水或(huo)溢(yi)流水形成(cheng)導(dao)電水膜，利用(yong)(yong)不導(dao)電的非(fei)金屬材料做集塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)和與(yu)干式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)的(de)收(shou)塵(chen)(chen)(chen)原理相同，都是靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)(shi)得粉(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場(chang)力的(de)作(zuo)用(yong)(yong)下到(dao)達集塵(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)器(qi)(qi)主要處(chu)理含水(shui)很低的(de)干氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)主要處(chu)理含水(shui)較(jiao)高(gao)乃至飽和的(de)濕(shi)氣體。在對集塵(chen)(chen)(chen)板/管上(shang)捕集到(dao)的(de)粉(fen)塵(chen)(chen)(chen)清除(chu)(chu)(chu)方(fang)式(shi)(shi)上(shang)WESP與(yu)DESP有較(jiao)大(da)區別，干式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)一般采用(yong)(yong)機械振(zhen)打(da)或聲波清灰等方(fang)式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)極上(shang)的(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)則采用(yong)(yong)定期(qi)沖(chong)洗的(de)方(fang)式(shi)(shi)，使(shi)(shi)粉(fen)塵(chen)(chen)(chen)隨著沖(chong)刷液的(de)流動(dong)而清除(chu)(chu)(chu)。