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。

濕式電(dian)除塵(chen)器主要有兩種結(jie)構形式，一(yi)種是(shi)使用(yong)耐腐蝕(shi)導(dao)(dao)電(dian)材(cai)料(liao)（可以(yi)為導(dao)(dao)電(dian)性(xing)能(neng)優良(liang)的的非(fei)金屬材(cai)料(liao)或具有耐腐蝕(shi)特(te)性(xing)的金屬材(cai)料(liao)）做集(ji)塵(chen)極，另一(yi)種是(shi)用(yong)通過噴水(shui)或溢流水(shui)形成導(dao)(dao)電(dian)水(shui)膜，利(li)用(yong)不(bu)導(dao)(dao)電(dian)的非(fei)金屬材(cai)料(liao)做集(ji)塵(chen)極。

收塵原理

濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器和(he)與干(gan)(gan)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器的(de)(de)(de)收塵(chen)(chen)(chen)原理相同(tong)，都是靠高壓電(dian)(dian)暈放(fang)電(dian)(dian)使(shi)得粉塵(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)(de)粉塵(chen)(chen)(chen)在電(dian)(dian)場力的(de)(de)(de)作用(yong)下到達集(ji)塵(chen)(chen)(chen)板/管。干(gan)(gan)式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)器主要處理含(han)水很低的(de)(de)(de)干(gan)(gan)氣(qi)(qi)體(ti)，濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器主要處理含(han)水較高乃至飽和(he)的(de)(de)(de)濕(shi)(shi)(shi)氣(qi)(qi)體(ti)。在對(dui)集(ji)塵(chen)(chen)(chen)板/管上捕集(ji)到的(de)(de)(de)粉塵(chen)(chen)(chen)清除(chu)(chu)方式(shi)(shi)上WESP與DESP有較大區別(bie)，干(gan)(gan)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器一般采(cai)用(yong)機械振(zhen)打或聲波(bo)清灰(hui)等方式(shi)(shi)清除(chu)(chu)電(dian)(dian)極上的(de)(de)(de)積灰(hui)，而濕(shi)(shi)(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器則采(cai)用(yong)定(ding)期沖洗(xi)的(de)(de)(de)方式(shi)(shi)，使(shi)粉塵(chen)(chen)(chen)隨著沖刷液的(de)(de)(de)流動(dong)而清除(chu)(chu)。