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(you)兩種(zhong)結構形式，一種(zhong)是(shi)使用耐腐蝕導(dao)(dao)電(dian)材(cai)料（可以為導(dao)(dao)電(dian)性能(neng)優良(liang)的(de)的(de)非金屬材(cai)料或具(ju)有(you)耐腐蝕特性的(de)金屬材(cai)料）做(zuo)集(ji)塵(chen)極，另(ling)一種(zhong)是(shi)用通過噴水或溢流(liu)水形成導(dao)(dao)電(dian)水膜，利用不導(dao)(dao)電(dian)的(de)非金屬材(cai)料做(zuo)集(ji)塵(chen)極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)和(he)與(yu)(yu)干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)原(yuan)理(li)相同，都是靠(kao)高壓(ya)電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)(yong)下(xia)到(dao)(dao)達集(ji)塵(chen)(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理(li)含水很低的(de)(de)(de)干(gan)氣體(ti)(ti)，濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理(li)含水較高乃至飽和(he)的(de)(de)(de)濕(shi)氣體(ti)(ti)。在(zai)對(dui)集(ji)塵(chen)(chen)(chen)(chen)板/管(guan)上捕集(ji)到(dao)(dao)的(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)(chen)清(qing)除方式(shi)上WESP與(yu)(yu)DESP有較大區(qu)別(bie)，干(gan)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)一(yi)般采(cai)(cai)用(yong)(yong)機(ji)械振打或聲波清(qing)灰等方式(shi)清(qing)除電(dian)(dian)(dian)(dian)極(ji)上的(de)(de)(de)積(ji)灰，而濕(shi)式(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)(qi)(qi)則采(cai)(cai)用(yong)(yong)定期沖洗的(de)(de)(de)方式(shi)，使粉(fen)(fen)塵(chen)(chen)(chen)(chen)隨著沖刷(shua)液的(de)(de)(de)流動而清(qing)除。