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)式電除塵(chen)器主要有兩種結構形(xing)式，一種是(shi)使用耐(nai)腐蝕導(dao)(dao)電材料（可(ke)以為導(dao)(dao)電性能(neng)優良(liang)的(de)(de)的(de)(de)非金(jin)屬材料或具有耐(nai)腐蝕特性的(de)(de)金(jin)屬材料）做集塵(chen)極，另(ling)一種是(shi)用通過噴(pen)水(shui)(shui)或溢流水(shui)(shui)形(xing)成導(dao)(dao)電水(shui)(shui)膜(mo)，利用不導(dao)(dao)電的(de)(de)非金(jin)屬材料做集塵(chen)極。

收塵原理

濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和(he)與干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的收塵(chen)(chen)(chen)(chen)原理相同，都是(shi)靠高壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉塵(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場力的作用下到達集塵(chen)(chen)(chen)(chen)板/管。干(gan)式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)(qi)主要(yao)處理含(han)(han)水很低(di)的干(gan)氣體，濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主要(yao)處理含(han)(han)水較高乃至飽和(he)的濕氣體。在對(dui)集塵(chen)(chen)(chen)(chen)板/管上(shang)捕集到的粉塵(chen)(chen)(chen)(chen)清(qing)(qing)除(chu)(chu)方式(shi)上(shang)WESP與DESP有較大區別，干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般(ban)采用機械振打或聲波(bo)清(qing)(qing)灰等(deng)方式(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)(dian)極(ji)上(shang)的積灰，而(er)濕式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用定期沖(chong)洗的方式(shi)，使粉塵(chen)(chen)(chen)(chen)隨著沖(chong)刷液的流動而(er)清(qing)(qing)除(chu)(chu)。