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)除塵(chen)器主(zhu)要有兩種結構形(xing)式(shi)，一種是(shi)使用耐腐蝕導(dao)電(dian)(dian)材(cai)料（可以為導(dao)電(dian)(dian)性能優(you)良(liang)的的非金屬(shu)材(cai)料或具有耐腐蝕特(te)性的金屬(shu)材(cai)料）做集塵(chen)極，另一種是(shi)用通過噴水(shui)或溢(yi)流水(shui)形(xing)成導(dao)電(dian)(dian)水(shui)膜，利用不導(dao)電(dian)(dian)的非金屬(shu)材(cai)料做集塵(chen)極。

收塵(chen)原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)和與(yu)干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)的(de)收(shou)塵(chen)(chen)原(yuan)理(li)相(xiang)同，都是靠高(gao)壓電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)使得粉塵(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)粉塵(chen)(chen)在電(dian)(dian)(dian)場力(li)的(de)作用(yong)(yong)下到(dao)達集(ji)塵(chen)(chen)板(ban)/管(guan)。干(gan)式(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理(li)含(han)水(shui)(shui)很低(di)的(de)干(gan)氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理(li)含(han)水(shui)(shui)較高(gao)乃至飽和的(de)濕(shi)氣體(ti)。在對集(ji)塵(chen)(chen)板(ban)/管(guan)上捕集(ji)到(dao)的(de)粉塵(chen)(chen)清(qing)除(chu)(chu)(chu)方式(shi)上WESP與(yu)DESP有較大(da)區別，干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)一般采用(yong)(yong)機械振打(da)或聲波清(qing)灰(hui)等方式(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)極上的(de)積灰(hui)，而濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)則采用(yong)(yong)定期沖洗的(de)方式(shi)，使粉塵(chen)(chen)隨著沖刷液(ye)的(de)流動(dong)而清(qing)除(chu)(chu)(chu)。