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)除塵器主(zhu)要有兩(liang)種結(jie)構形式(shi)，一種是(shi)使(shi)用(yong)耐(nai)腐蝕導電(dian)材料(liao)（可以為導電(dian)性能優良的的非金屬(shu)材料(liao)或(huo)具有耐(nai)腐蝕特性的金屬(shu)材料(liao)）做集(ji)(ji)塵極(ji)，另(ling)一種是(shi)用(yong)通過噴水(shui)或(huo)溢流水(shui)形成導電(dian)水(shui)膜，利用(yong)不導電(dian)的非金屬(shu)材料(liao)做集(ji)(ji)塵極(ji)。

收塵原理

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和與(yu)干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的收(shou)塵(chen)(chen)(chen)(chen)原(yuan)理(li)相同，都(dou)是靠高壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后(hou)的粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場力(li)的作用下(xia)到達集塵(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)(qi)主要處(chu)理(li)含水(shui)很低(di)的干(gan)氣體，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主要處(chu)理(li)含水(shui)較高乃至飽和的濕(shi)(shi)氣體。在(zai)對(dui)集塵(chen)(chen)(chen)(chen)板(ban)/管上(shang)(shang)捕集到的粉(fen)塵(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)方(fang)式(shi)(shi)(shi)上(shang)(shang)WESP與(yu)DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采(cai)用機(ji)械振打或聲(sheng)波清(qing)灰(hui)等方(fang)式(shi)(shi)(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)極(ji)上(shang)(shang)的積灰(hui)，而濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則(ze)采(cai)用定期沖(chong)洗的方(fang)式(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)(chen)隨著沖(chong)刷液(ye)的流動而清(qing)除(chu)(chu)(chu)。