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)電除塵(chen)器主要(yao)有兩(liang)種(zhong)結構形式(shi)，一種(zhong)是(shi)使用(yong)(yong)耐(nai)腐(fu)蝕導電材料(liao)（可以為導電性能優良的(de)(de)的(de)(de)非金屬(shu)材料(liao)或(huo)具有耐(nai)腐(fu)蝕特性的(de)(de)金屬(shu)材料(liao)）做(zuo)集塵(chen)極，另一種(zhong)是(shi)用(yong)(yong)通過噴水(shui)或(huo)溢流水(shui)形成導電水(shui)膜，利用(yong)(yong)不導電的(de)(de)非金屬(shu)材料(liao)做(zuo)集塵(chen)極。

收(shou)塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器和與干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器的(de)(de)(de)收塵(chen)(chen)原理(li)相同(tong)，都是靠(kao)高(gao)壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得粉塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)(de)粉塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力(li)的(de)(de)(de)作用(yong)下(xia)到(dao)達集(ji)塵(chen)(chen)板/管(guan)(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)(chen)器主要(yao)(yao)處理(li)含水很低的(de)(de)(de)干(gan)(gan)氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器主要(yao)(yao)處理(li)含水較高(gao)乃至(zhi)飽和的(de)(de)(de)濕(shi)氣體(ti)。在(zai)對集(ji)塵(chen)(chen)板/管(guan)(guan)上(shang)捕集(ji)到(dao)的(de)(de)(de)粉塵(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)上(shang)WESP與DESP有較大區別，干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器一般采用(yong)機械振打或聲(sheng)波清灰等(deng)方式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)極上(shang)的(de)(de)(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)器則采用(yong)定期沖洗的(de)(de)(de)方式(shi)(shi)，使(shi)粉塵(chen)(chen)隨著沖刷(shua)液的(de)(de)(de)流動而清除(chu)(chu)(chu)。