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。

濕式電除(chu)塵(chen)(chen)器主要有(you)兩種(zhong)結(jie)構形式，一種(zhong)是使用(yong)(yong)耐腐(fu)蝕導(dao)(dao)電材(cai)料(liao)（可以為導(dao)(dao)電性能優良(liang)的(de)(de)的(de)(de)非(fei)金(jin)屬(shu)材(cai)料(liao)或具有(you)耐腐(fu)蝕特性的(de)(de)金(jin)屬(shu)材(cai)料(liao)）做集塵(chen)(chen)極(ji)，另一種(zhong)是用(yong)(yong)通(tong)過噴水或溢流(liu)水形成導(dao)(dao)電水膜，利用(yong)(yong)不導(dao)(dao)電的(de)(de)非(fei)金(jin)屬(shu)材(cai)料(liao)做集塵(chen)(chen)極(ji)。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)和與(yu)干式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原理相同，都(dou)是靠高壓電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)使得(de)粉塵(chen)(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后(hou)的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作用下到達集塵(chen)(chen)(chen)(chen)(chen)板/管(guan)。干式(shi)(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水很低(di)的(de)(de)干氣體，濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主要處理含(han)水較(jiao)高乃至飽和的(de)(de)濕(shi)氣體。在對(dui)集塵(chen)(chen)(chen)(chen)(chen)板/管(guan)上(shang)捕(bu)集到的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)(chu)方式(shi)(shi)上(shang)WESP與(yu)DESP有較(jiao)大區別，干式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)一般采用機械振(zhen)打或聲波清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極(ji)上(shang)的(de)(de)積灰(hui)，而濕(shi)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)則采用定(ding)期沖洗(xi)的(de)(de)方式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液(ye)的(de)(de)流動而清(qing)除(chu)(chu)(chu)(chu)。