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(shi)式電除塵器(qi)主要(yao)有(you)兩種結構形(xing)式，一(yi)種是(shi)使用耐腐(fu)蝕導電材料(liao)(liao)（可以為導電性能優良的(de)(de)的(de)(de)非金(jin)屬(shu)材料(liao)(liao)或(huo)具有(you)耐腐(fu)蝕特性的(de)(de)金(jin)屬(shu)材料(liao)(liao)）做集塵極(ji)，另一(yi)種是(shi)用通過噴水(shui)(shui)或(huo)溢流水(shui)(shui)形(xing)成導電水(shui)(shui)膜，利(li)用不導電的(de)(de)非金(jin)屬(shu)材料(liao)(liao)做集塵極(ji)。

收塵原理

濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)和(he)與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)的收(shou)塵(chen)(chen)(chen)原理相同，都是靠(kao)高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場(chang)力的作用(yong)下到達集(ji)塵(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)器(qi)(qi)(qi)主要處(chu)(chu)理含水(shui)很低的干(gan)氣體(ti)，濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)主要處(chu)(chu)理含水(shui)較(jiao)高(gao)乃至飽和(he)的濕(shi)氣體(ti)。在(zai)對集(ji)塵(chen)(chen)(chen)板(ban)/管上(shang)捕集(ji)到的粉塵(chen)(chen)(chen)清除(chu)(chu)方(fang)式(shi)(shi)(shi)上(shang)WESP與DESP有較(jiao)大(da)區(qu)別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)一般采用(yong)機械振打或聲波清灰(hui)(hui)等方(fang)式(shi)(shi)(shi)清除(chu)(chu)電(dian)(dian)(dian)極上(shang)的積灰(hui)(hui)，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)(qi)(qi)則采用(yong)定(ding)期(qi)沖(chong)(chong)洗的方(fang)式(shi)(shi)(shi)，使粉塵(chen)(chen)(chen)隨(sui)著沖(chong)(chong)刷液的流(liu)動(dong)而清除(chu)(chu)。