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)(dian)除(chu)塵器主(zhu)要有兩種(zhong)結構形式(shi)，一種(zhong)是(shi)使用(yong)耐腐蝕(shi)導(dao)(dao)電(dian)(dian)材料（可以為導(dao)(dao)電(dian)(dian)性(xing)能優良的(de)(de)的(de)(de)非金(jin)屬材料或具有耐腐蝕(shi)特性(xing)的(de)(de)金(jin)屬材料）做集塵極，另(ling)一種(zhong)是(shi)用(yong)通(tong)過噴水(shui)或溢流水(shui)形成導(dao)(dao)電(dian)(dian)水(shui)膜，利用(yong)不導(dao)(dao)電(dian)(dian)的(de)(de)非金(jin)屬材料做集塵極。

收塵原理

濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器和(he)與(yu)干(gan)(gan)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器的(de)(de)(de)(de)收塵(chen)(chen)(chen)原理相同(tong)，都是靠高(gao)(gao)壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)(de)粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用下到達集(ji)塵(chen)(chen)(chen)板/管(guan)。干(gan)(gan)式電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器主要(yao)處理含水很低的(de)(de)(de)(de)干(gan)(gan)氣體(ti)，濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器主要(yao)處理含水較(jiao)高(gao)(gao)乃(nai)至飽和(he)的(de)(de)(de)(de)濕(shi)(shi)氣體(ti)。在對集(ji)塵(chen)(chen)(chen)板/管(guan)上捕集(ji)到的(de)(de)(de)(de)粉塵(chen)(chen)(chen)清除(chu)(chu)(chu)方(fang)式上WESP與(yu)DESP有較(jiao)大區別，干(gan)(gan)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器一般采(cai)用機械振打或聲(sheng)波清灰(hui)(hui)等方(fang)式清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極上的(de)(de)(de)(de)積灰(hui)(hui)，而(er)濕(shi)(shi)式電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器則采(cai)用定期沖洗的(de)(de)(de)(de)方(fang)式，使粉塵(chen)(chen)(chen)隨(sui)著沖刷液的(de)(de)(de)(de)流(liu)動而(er)清除(chu)(chu)(chu)。