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(chen)器主要有(you)兩種結(jie)構形式(shi)，一種是(shi)使(shi)用耐(nai)腐蝕導(dao)(dao)(dao)電材(cai)(cai)料(liao)（可以為導(dao)(dao)(dao)電性(xing)能優良(liang)的(de)的(de)非金屬材(cai)(cai)料(liao)或(huo)具有(you)耐(nai)腐蝕特性(xing)的(de)金屬材(cai)(cai)料(liao)）做集塵(chen)極，另一種是(shi)用通(tong)過噴水(shui)(shui)或(huo)溢流水(shui)(shui)形成導(dao)(dao)(dao)電水(shui)(shui)膜，利用不導(dao)(dao)(dao)電的(de)非金屬材(cai)(cai)料(liao)做集塵(chen)極。

收塵原理(li)

濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)和(he)與干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)的(de)收(shou)塵(chen)(chen)(chen)原理相同，都是靠高壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)粉塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)作用下到達集(ji)塵(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要(yao)處理含水(shui)(shui)很(hen)低的(de)干(gan)氣體(ti)，濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要(yao)處理含水(shui)(shui)較高乃至(zhi)飽和(he)的(de)濕(shi)(shi)(shi)氣體(ti)。在(zai)對集(ji)塵(chen)(chen)(chen)板/管(guan)上(shang)(shang)捕集(ji)到的(de)粉塵(chen)(chen)(chen)清(qing)除(chu)(chu)方(fang)式(shi)上(shang)(shang)WESP與DESP有較大區別，干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)一般采用機械振打或聲(sheng)波清(qing)灰等方(fang)式(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)極上(shang)(shang)的(de)積灰，而濕(shi)(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)則采用定期(qi)沖洗的(de)方(fang)式(shi)，使粉塵(chen)(chen)(chen)隨著沖刷液的(de)流動而清(qing)除(chu)(chu)。