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)(shi)電除塵(chen)器主要有兩種(zhong)結構形式(shi)(shi)，一(yi)種(zhong)是使用(yong)耐腐蝕導(dao)電材(cai)料（可以為導(dao)電性(xing)能優(you)良(liang)的(de)的(de)非金屬材(cai)料或具有耐腐蝕特性(xing)的(de)金屬材(cai)料）做集塵(chen)極，另一(yi)種(zhong)是用(yong)通過噴水或溢流水形成導(dao)電水膜，利(li)用(yong)不導(dao)電的(de)非金屬材(cai)料做集塵(chen)極。

收塵原理(li)

濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)(qi)和與(yu)干式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)(qi)的(de)收(shou)塵(chen)原理相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉塵(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后的(de)粉塵(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)作(zuo)用下到(dao)(dao)達集塵(chen)板(ban)(ban)/管(guan)。干式(shi)(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)器(qi)(qi)(qi)主要(yao)處理含(han)水(shui)(shui)很(hen)低的(de)干氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)(qi)主要(yao)處理含(han)水(shui)(shui)較高乃至飽和的(de)濕(shi)氣體。在(zai)對集塵(chen)板(ban)(ban)/管(guan)上(shang)捕集到(dao)(dao)的(de)粉塵(chen)清(qing)除(chu)方式(shi)(shi)上(shang)WESP與(yu)DESP有較大(da)區別，干式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)(qi)一般采(cai)用機械振打或聲波清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)電(dian)(dian)(dian)(dian)極上(shang)的(de)積灰(hui)，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)(qi)則采(cai)用定(ding)期沖洗的(de)方式(shi)(shi)，使粉塵(chen)隨著沖刷液(ye)的(de)流(liu)動(dong)而清(qing)除(chu)。