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(chu)塵(chen)器主要有兩種(zhong)結構形(xing)式，一種(zhong)是使用(yong)耐腐蝕導(dao)(dao)電材(cai)(cai)料(liao)（可(ke)以為導(dao)(dao)電性能優(you)良的的非金(jin)屬材(cai)(cai)料(liao)或具有耐腐蝕特性的金(jin)屬材(cai)(cai)料(liao)）做集(ji)(ji)塵(chen)極，另一種(zhong)是用(yong)通過噴水(shui)或溢流水(shui)形(xing)成導(dao)(dao)電水(shui)膜，利用(yong)不導(dao)(dao)電的非金(jin)屬材(cai)(cai)料(liao)做集(ji)(ji)塵(chen)極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)和(he)與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)的(de)(de)收塵(chen)(chen)(chen)原(yuan)理相同，都是靠高壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)作用(yong)下到(dao)達集(ji)(ji)塵(chen)(chen)(chen)板/管。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)(qi)主要處(chu)理含水很低(di)的(de)(de)干(gan)(gan)氣(qi)體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)主要處(chu)理含水較(jiao)高乃至飽和(he)的(de)(de)濕(shi)氣(qi)體。在對集(ji)(ji)塵(chen)(chen)(chen)板/管上(shang)捕集(ji)(ji)到(dao)的(de)(de)粉塵(chen)(chen)(chen)清除(chu)方式(shi)(shi)上(shang)WESP與DESP有較(jiao)大(da)區(qu)別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)一般采用(yong)機(ji)械振打(da)或聲(sheng)波清灰等方式(shi)(shi)清除(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)積(ji)灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)則采用(yong)定期沖(chong)(chong)洗的(de)(de)方式(shi)(shi)，使粉塵(chen)(chen)(chen)隨(sui)著沖(chong)(chong)刷(shua)液(ye)的(de)(de)流動而清除(chu)。