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(zhu)要有兩種結(jie)構形式，一種是使(shi)用耐(nai)腐蝕(shi)導電材料(liao)（可以為導電性(xing)能優良的(de)(de)的(de)(de)非金屬(shu)(shu)材料(liao)或(huo)具(ju)有耐(nai)腐蝕(shi)特性(xing)的(de)(de)金屬(shu)(shu)材料(liao)）做集塵極，另一種是用通(tong)過噴水或(huo)溢流水形成導電水膜，利用不導電的(de)(de)非金屬(shu)(shu)材料(liao)做集塵極。

收塵(chen)原理(li)

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器和與(yu)干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器的(de)(de)(de)收塵(chen)(chen)(chen)原理(li)相同，都是靠高壓電(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(hou)的(de)(de)(de)粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)場(chang)力的(de)(de)(de)作用(yong)下到達集塵(chen)(chen)(chen)板(ban)/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器主要(yao)處理(li)含水(shui)很低的(de)(de)(de)干(gan)氣(qi)體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器主要(yao)處理(li)含水(shui)較高乃至飽和的(de)(de)(de)濕(shi)氣(qi)體(ti)。在對(dui)集塵(chen)(chen)(chen)板(ban)/管(guan)上捕集到的(de)(de)(de)粉塵(chen)(chen)(chen)清(qing)(qing)除(chu)(chu)(chu)方式(shi)(shi)上WESP與(yu)DESP有較大區別(bie)，干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器一般采用(yong)機械振打或聲(sheng)波清(qing)(qing)灰(hui)等方式(shi)(shi)清(qing)(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)(de)積灰(hui)，而(er)濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器則采用(yong)定期沖洗的(de)(de)(de)方式(shi)(shi)，使粉塵(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)流動而(er)清(qing)(qing)除(chu)(chu)(chu)。