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)電除塵器主要有兩種(zhong)(zhong)結構(gou)形式(shi)，一種(zhong)(zhong)是(shi)使用(yong)(yong)耐腐(fu)蝕(shi)導(dao)電材(cai)料（可以為導(dao)電性能(neng)優良的的非(fei)金(jin)屬材(cai)料或具有耐腐(fu)蝕(shi)特性的金(jin)屬材(cai)料）做集塵極，另一種(zhong)(zhong)是(shi)用(yong)(yong)通過噴水或溢流水形成(cheng)導(dao)電水膜(mo)，利(li)用(yong)(yong)不導(dao)電的非(fei)金(jin)屬材(cai)料做集塵極。

收塵原理(li)

濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)和(he)與(yu)干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)(de)(de)收塵(chen)(chen)原理相同，都是靠(kao)高(gao)壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)得粉塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后(hou)的(de)(de)(de)(de)粉塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用下到達集(ji)塵(chen)(chen)板(ban)/管。干(gan)式(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)器(qi)主要處理含水很(hen)低的(de)(de)(de)(de)干(gan)氣體，濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)主要處理含水較高(gao)乃至飽和(he)的(de)(de)(de)(de)濕(shi)氣體。在(zai)對(dui)集(ji)塵(chen)(chen)板(ban)/管上(shang)(shang)捕集(ji)到的(de)(de)(de)(de)粉塵(chen)(chen)清除方式(shi)上(shang)(shang)WESP與(yu)DESP有較大(da)區別，干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)一般采(cai)用機(ji)械振打(da)或聲波清灰等方式(shi)清除電(dian)(dian)(dian)(dian)極(ji)上(shang)(shang)的(de)(de)(de)(de)積灰，而(er)(er)濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器(qi)則采(cai)用定期沖洗的(de)(de)(de)(de)方式(shi)，使(shi)粉塵(chen)(chen)隨著沖刷(shua)液的(de)(de)(de)(de)流動而(er)(er)清除。