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。

濕式電除塵(chen)器主要有(you)兩種結構(gou)形式，一種是(shi)使用(yong)(yong)耐(nai)(nai)腐(fu)蝕(shi)導(dao)(dao)電材(cai)(cai)料（可以為(wei)導(dao)(dao)電性(xing)(xing)能優良的的非金屬材(cai)(cai)料或具(ju)有(you)耐(nai)(nai)腐(fu)蝕(shi)特性(xing)(xing)的金屬材(cai)(cai)料）做集塵(chen)極，另(ling)一種是(shi)用(yong)(yong)通過噴(pen)水或溢流(liu)水形成導(dao)(dao)電水膜(mo)，利用(yong)(yong)不導(dao)(dao)電的非金屬材(cai)(cai)料做集塵(chen)極。

收塵原(yuan)理

濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器和(he)與(yu)干式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器的(de)(de)收塵(chen)(chen)(chen)(chen)(chen)原理相同，都是(shi)靠(kao)高(gao)壓電(dian)(dian)暈放電(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)場力(li)的(de)(de)作用(yong)下(xia)到(dao)達(da)集塵(chen)(chen)(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)器主要處(chu)理含水很低的(de)(de)干氣(qi)體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器主要處(chu)理含水較高(gao)乃至(zhi)飽和(he)的(de)(de)濕(shi)氣(qi)體(ti)。在(zai)對(dui)集塵(chen)(chen)(chen)(chen)(chen)板/管上捕集到(dao)的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清(qing)除方(fang)式(shi)(shi)上WESP與(yu)DESP有較大區別，干式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器一般采用(yong)機(ji)械振打或聲(sheng)波清(qing)灰等方(fang)式(shi)(shi)清(qing)除電(dian)(dian)極上的(de)(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器則采用(yong)定期沖洗的(de)(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨著沖刷(shua)液的(de)(de)流動而清(qing)除。