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(dian)(dian)除塵(chen)器主要有兩種結構形(xing)式(shi)(shi)，一(yi)種是使用(yong)耐腐蝕導電(dian)(dian)材(cai)料（可以為導電(dian)(dian)性能優(you)良的(de)(de)的(de)(de)非金屬材(cai)料或具有耐腐蝕特性的(de)(de)金屬材(cai)料）做集塵(chen)極，另一(yi)種是用(yong)通過噴(pen)水(shui)或溢流水(shui)形(xing)成導電(dian)(dian)水(shui)膜，利用(yong)不導電(dian)(dian)的(de)(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)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和(he)與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)(de)(de)收塵(chen)(chen)(chen)(chen)原(yuan)理(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)(de)粉塵(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用(yong)下到達集(ji)塵(chen)(chen)(chen)(chen)板/管。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含水很(hen)低的(de)(de)(de)(de)干(gan)(gan)氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要處理(li)含水較高乃至飽和(he)的(de)(de)(de)(de)濕(shi)氣體。在對集(ji)塵(chen)(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)(de)(de)(de)粉塵(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)方(fang)式(shi)(shi)上(shang)WESP與DESP有較大(da)區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一(yi)般采用(yong)機械(xie)振打(da)或(huo)聲波(bo)清(qing)灰等方(fang)式(shi)(shi)清(qing)除(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)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用(yong)定期沖洗的(de)(de)(de)(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)(de)流動而清(qing)除(chu)(chu)。