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)(dian)除塵器主要(yao)有(you)兩種(zhong)結構形(xing)式，一種(zhong)是使用(yong)耐腐(fu)蝕導(dao)電(dian)(dian)(dian)材(cai)料（可(ke)以為導(dao)電(dian)(dian)(dian)性能(neng)優良的的非金(jin)(jin)屬材(cai)料或(huo)具有(you)耐腐(fu)蝕特性的金(jin)(jin)屬材(cai)料）做集(ji)塵極(ji)，另一種(zhong)是用(yong)通過噴水或(huo)溢流水形(xing)成導(dao)電(dian)(dian)(dian)水膜，利用(yong)不導(dao)電(dian)(dian)(dian)的非金(jin)(jin)屬材(cai)料做集(ji)塵極(ji)。

收塵(chen)原(yuan)理(li)

濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)和與(yu)干(gan)(gan)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)(chen)原(yuan)理相同，都是靠高(gao)壓電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉(fen)(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場力的作用(yong)下(xia)到達集塵(chen)(chen)(chen)(chen)板(ban)/管(guan)。干(gan)(gan)式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)(chu)理含水很低的干(gan)(gan)氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)(chu)理含水較高(gao)乃至(zhi)飽和的濕(shi)氣體(ti)。在(zai)對集塵(chen)(chen)(chen)(chen)板(ban)/管(guan)上(shang)捕(bu)集到的粉(fen)(fen)塵(chen)(chen)(chen)(chen)清(qing)除方式(shi)上(shang)WESP與(yu)DESP有較大(da)區(qu)別，干(gan)(gan)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)一般采(cai)用(yong)機械振(zhen)打或聲波(bo)清(qing)灰(hui)等方式(shi)清(qing)除電(dian)(dian)(dian)極(ji)上(shang)的積灰(hui)，而濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)則采(cai)用(yong)定期沖洗的方式(shi)，使粉(fen)(fen)塵(chen)(chen)(chen)(chen)隨著沖刷液的流(liu)動而清(qing)除。