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(shi)電(dian)除(chu)塵(chen)器主要有(you)兩種(zhong)結(jie)構形(xing)式(shi)，一種(zhong)是使用(yong)耐腐蝕導(dao)電(dian)材料（可以(yi)為導(dao)電(dian)性(xing)(xing)能優(you)良的(de)的(de)非金(jin)屬(shu)材料或具有(you)耐腐蝕特性(xing)(xing)的(de)金(jin)屬(shu)材料）做集(ji)塵(chen)極，另一種(zhong)是用(yong)通(tong)過噴水或溢流水形(xing)成導(dao)電(dian)水膜，利(li)用(yong)不導(dao)電(dian)的(de)非金(jin)屬(shu)材料做集(ji)塵(chen)極。

收塵原理(li)

濕(shi)式電(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)和與干(gan)式電(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)(chen)原理相同，都是(shi)靠高(gao)壓電(dian)暈放電(dian)使得粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)，荷(he)電(dian)后(hou)的粉(fen)塵(chen)(chen)(chen)(chen)在電(dian)場(chang)力的作用(yong)下到達集(ji)塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式電(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)理含水很低的干(gan)氣體，濕(shi)式電(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)主要處(chu)理含水較高(gao)乃(nai)至(zhi)飽和的濕(shi)氣體。在對集(ji)塵(chen)(chen)(chen)(chen)板(ban)/管上(shang)捕集(ji)到的粉(fen)塵(chen)(chen)(chen)(chen)清除(chu)(chu)(chu)(chu)方(fang)(fang)式上(shang)WESP與DESP有(you)較大區別，干(gan)式電(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)一般采用(yong)機(ji)械振打或聲(sheng)波(bo)清灰等方(fang)(fang)式清除(chu)(chu)(chu)(chu)電(dian)極上(shang)的積灰，而濕(shi)式電(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)則采用(yong)定(ding)期沖(chong)洗的方(fang)(fang)式，使粉(fen)塵(chen)(chen)(chen)(chen)隨著沖(chong)刷液的流動而清除(chu)(chu)(chu)(chu)。