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。

濕式電除塵(chen)(chen)器主要有兩種結構形(xing)式，一種是(shi)使用(yong)耐腐蝕導(dao)電材料（可(ke)以為導(dao)電性(xing)能優良的的非金(jin)屬材料或具有耐腐蝕特性(xing)的金(jin)屬材料）做集塵(chen)(chen)極，另一種是(shi)用(yong)通(tong)過噴水或溢(yi)流水形(xing)成導(dao)電水膜，利(li)用(yong)不導(dao)電的非金(jin)屬材料做集塵(chen)(chen)極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)和與(yu)干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)的(de)收塵(chen)(chen)(chen)原(yuan)理(li)相(xiang)同，都是靠高(gao)壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后(hou)的(de)粉塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)作用(yong)下到達集(ji)塵(chen)(chen)(chen)板/管。干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)(qi)主要處理(li)含水很低的(de)干(gan)(gan)氣(qi)(qi)體，濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)主要處理(li)含水較高(gao)乃至飽(bao)和的(de)濕(shi)氣(qi)(qi)體。在(zai)對集(ji)塵(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)粉塵(chen)(chen)(chen)清除方(fang)(fang)式(shi)上(shang)WESP與(yu)DESP有(you)較大(da)區別(bie)，干(gan)(gan)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)一般采用(yong)機械振打或聲波清灰(hui)(hui)等方(fang)(fang)式(shi)清除電(dian)(dian)(dian)(dian)(dian)極上(shang)的(de)積灰(hui)(hui)，而濕(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)則采用(yong)定(ding)期沖(chong)(chong)洗(xi)的(de)方(fang)(fang)式(shi)，使粉塵(chen)(chen)(chen)隨(sui)著沖(chong)(chong)刷液的(de)流動而清除。