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(chu)塵器主要有兩種結構形(xing)式(shi)，一種是使用(yong)耐腐蝕(shi)導電(dian)(dian)材料(liao)（可以為導電(dian)(dian)性能優良的的非金屬(shu)(shu)材料(liao)或具(ju)有耐腐蝕(shi)特性的金屬(shu)(shu)材料(liao)）做(zuo)集塵極(ji)，另一種是用(yong)通過噴(pen)水(shui)或溢流水(shui)形(xing)成(cheng)導電(dian)(dian)水(shui)膜(mo)，利用(yong)不(bu)導電(dian)(dian)的非金屬(shu)(shu)材料(liao)做(zuo)集塵極(ji)。

收(shou)塵原理(li)

濕(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)和(he)與干(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)的(de)(de)收塵(chen)(chen)(chen)原(yuan)理相同，都是靠(kao)高壓電(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)作用下到達集(ji)塵(chen)(chen)(chen)板/管。干(gan)式(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水(shui)很低的(de)(de)干(gan)氣(qi)體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水(shui)較(jiao)高乃至飽和(he)的(de)(de)濕(shi)氣(qi)體(ti)。在(zai)(zai)對集(ji)塵(chen)(chen)(chen)板/管上(shang)(shang)捕集(ji)到的(de)(de)粉塵(chen)(chen)(chen)清(qing)除(chu)(chu)方(fang)式(shi)上(shang)(shang)WESP與DESP有較(jiao)大(da)區(qu)別，干(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)一般(ban)采用機械(xie)振打或聲波清(qing)灰(hui)等方(fang)式(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)(dian)極上(shang)(shang)的(de)(de)積灰(hui)，而(er)(er)濕(shi)式(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)則采用定期沖洗的(de)(de)方(fang)式(shi)，使粉塵(chen)(chen)(chen)隨(sui)著沖刷液(ye)的(de)(de)流動而(er)(er)清(qing)除(chu)(chu)。