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)塵器主要有兩(liang)種(zhong)結構(gou)形式(shi)，一種(zhong)是(shi)使用(yong)耐(nai)腐(fu)(fu)蝕(shi)導(dao)(dao)電(dian)(dian)材料（可(ke)以為導(dao)(dao)電(dian)(dian)性能優良(liang)的(de)的(de)非金屬(shu)材料或具有耐(nai)腐(fu)(fu)蝕(shi)特性的(de)金屬(shu)材料）做集塵極(ji)，另一種(zhong)是(shi)用(yong)通過噴水或溢流水形成導(dao)(dao)電(dian)(dian)水膜(mo)，利用(yong)不(bu)導(dao)(dao)電(dian)(dian)的(de)非金屬(shu)材料做集塵極(ji)。

收塵(chen)原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵器(qi)和與(yu)干式(shi)(shi)電(dian)(dian)(dian)除塵器(qi)的(de)(de)收塵原理相同，都是靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)(de)粉(fen)塵在電(dian)(dian)(dian)場(chang)力的(de)(de)作用(yong)(yong)下到達集(ji)塵板(ban)/管(guan)。干式(shi)(shi)電(dian)(dian)(dian)收塵器(qi)主要(yao)處(chu)(chu)理含水很低(di)的(de)(de)干氣(qi)體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵器(qi)主要(yao)處(chu)(chu)理含水較(jiao)高(gao)乃至(zhi)飽和的(de)(de)濕(shi)氣(qi)體。在對集(ji)塵板(ban)/管(guan)上捕集(ji)到的(de)(de)粉(fen)塵清(qing)除方式(shi)(shi)上WESP與(yu)DESP有較(jiao)大區別，干式(shi)(shi)電(dian)(dian)(dian)除塵器(qi)一(yi)般采(cai)用(yong)(yong)機械振打(da)或聲波清(qing)灰等方式(shi)(shi)清(qing)除電(dian)(dian)(dian)極上的(de)(de)積灰，而(er)(er)濕(shi)式(shi)(shi)電(dian)(dian)(dian)除塵器(qi)則采(cai)用(yong)(yong)定期沖(chong)洗的(de)(de)方式(shi)(shi)，使粉(fen)塵隨著(zhu)沖(chong)刷(shua)液的(de)(de)流動(dong)而(er)(er)清(qing)除。