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(dian)(dian)除(chu)塵器主要有(you)兩種結構形式，一種是使用(yong)耐(nai)腐蝕導電(dian)(dian)材(cai)(cai)料(liao)（可以為導電(dian)(dian)性能優(you)良(liang)的的非金(jin)屬材(cai)(cai)料(liao)或具有(you)耐(nai)腐蝕特性的金(jin)屬材(cai)(cai)料(liao)）做集(ji)塵極，另一種是用(yong)通過噴(pen)水或溢(yi)流水形成導電(dian)(dian)水膜，利用(yong)不(bu)導電(dian)(dian)的非金(jin)屬材(cai)(cai)料(liao)做集(ji)塵極。

收塵(chen)原理

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)和與干式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)的收塵(chen)(chen)原理相同(tong)，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)場力(li)的作用下到(dao)達集塵(chen)(chen)板(ban)/管(guan)。干式(shi)(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)器(qi)主要處理含水很低的干氣體，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)主要處理含水較高乃至飽和的濕(shi)(shi)氣體。在(zai)(zai)對集塵(chen)(chen)板(ban)/管(guan)上捕集到(dao)的粉(fen)塵(chen)(chen)清除方(fang)式(shi)(shi)(shi)上WESP與DESP有較大區(qu)別，干式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)一般采用機械振打(da)或聲波(bo)清灰等方(fang)式(shi)(shi)(shi)清除電(dian)(dian)(dian)極(ji)上的積(ji)灰，而(er)濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)則(ze)采用定(ding)期沖(chong)洗的方(fang)式(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)隨著沖(chong)刷液的流動而(er)清除。