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(chu)塵器主要有兩種結構形式(shi)，一(yi)種是使用耐(nai)(nai)腐蝕導(dao)電材(cai)料（可(ke)以為導(dao)電性能優(you)良的(de)的(de)非金屬(shu)材(cai)料或具有耐(nai)(nai)腐蝕特性的(de)金屬(shu)材(cai)料）做集(ji)塵極，另(ling)一(yi)種是用通(tong)過噴水(shui)或溢(yi)流水(shui)形成導(dao)電水(shui)膜，利用不導(dao)電的(de)非金屬(shu)材(cai)料做集(ji)塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)的(de)(de)(de)(de)收(shou)塵(chen)原理相(xiang)同，都(dou)是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)(de)粉(fen)塵(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用(yong)下到達集(ji)塵(chen)板/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)器(qi)主要處理含水(shui)很低的(de)(de)(de)(de)干(gan)氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)主要處理含水(shui)較高乃至飽和的(de)(de)(de)(de)濕(shi)氣體。在(zai)對集(ji)塵(chen)板/管上(shang)捕集(ji)到的(de)(de)(de)(de)粉(fen)塵(chen)清除(chu)(chu)(chu)方式(shi)(shi)上(shang)WESP與DESP有較大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)一般采(cai)用(yong)機械(xie)振打(da)或聲(sheng)波清灰等方式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)(de)(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)器(qi)則采(cai)用(yong)定期沖洗的(de)(de)(de)(de)方式(shi)(shi)，使粉(fen)塵(chen)隨著(zhu)沖刷液的(de)(de)(de)(de)流動(dong)而清除(chu)(chu)(chu)。