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(dian)除塵(chen)器主要有兩種(zhong)結構形式，一種(zhong)是(shi)使用耐腐蝕(shi)導(dao)(dao)電(dian)材料(liao)(liao)（可以為導(dao)(dao)電(dian)性(xing)能優良的(de)的(de)非(fei)金屬材料(liao)(liao)或(huo)具有耐腐蝕(shi)特性(xing)的(de)金屬材料(liao)(liao)）做(zuo)集(ji)塵(chen)極(ji)，另一種(zhong)是(shi)用通過(guo)噴水(shui)或(huo)溢流水(shui)形成(cheng)導(dao)(dao)電(dian)水(shui)膜，利用不導(dao)(dao)電(dian)的(de)非(fei)金屬材料(liao)(liao)做(zuo)集(ji)塵(chen)極(ji)。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器的收塵(chen)(chen)原理(li)(li)(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)(dian)后(hou)的粉(fen)(fen)塵(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)(dian)場力的作用(yong)下到達集(ji)塵(chen)(chen)板/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)器主要處(chu)理(li)(li)(li)含水(shui)很低的干(gan)氣(qi)體，濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器主要處(chu)理(li)(li)(li)含水(shui)較(jiao)高乃至(zhi)飽和的濕氣(qi)體。在對集(ji)塵(chen)(chen)板/管上(shang)捕集(ji)到的粉(fen)(fen)塵(chen)(chen)清(qing)除(chu)(chu)(chu)方式(shi)(shi)上(shang)WESP與DESP有(you)較(jiao)大區別(bie)，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器一(yi)般采用(yong)機械振打或聲波清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)極上(shang)的積灰(hui)，而(er)濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器則采用(yong)定期沖洗的方式(shi)(shi)，使粉(fen)(fen)塵(chen)(chen)隨著沖刷(shua)液的流(liu)動而(er)清(qing)除(chu)(chu)(chu)。