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(chen)器主要(yao)有(you)兩種結(jie)構形式(shi)，一種是使用(yong)耐腐蝕導(dao)(dao)電(dian)材(cai)料(liao)（可以為導(dao)(dao)電(dian)性能優良的的非金屬(shu)材(cai)料(liao)或(huo)具有(you)耐腐蝕特性的金屬(shu)材(cai)料(liao)）做(zuo)集塵(chen)極，另一種是用(yong)通過噴水(shui)或(huo)溢流(liu)水(shui)形成導(dao)(dao)電(dian)水(shui)膜，利(li)用(yong)不導(dao)(dao)電(dian)的非金屬(shu)材(cai)料(liao)做(zuo)集塵(chen)極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)和與(yu)干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)的(de)收(shou)塵(chen)(chen)(chen)原理(li)相同(tong)，都是靠高(gao)壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使得粉(fen)(fen)(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)粉(fen)(fen)(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)作(zuo)用(yong)下到達集塵(chen)(chen)(chen)板/管。干式(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)器(qi)(qi)主(zhu)要處(chu)理(li)含水很低的(de)干氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)主(zhu)要處(chu)理(li)含水較(jiao)高(gao)乃至飽和的(de)濕(shi)氣體(ti)。在對集塵(chen)(chen)(chen)板/管上捕集到的(de)粉(fen)(fen)(fen)塵(chen)(chen)(chen)清除(chu)方式(shi)上WESP與(yu)DESP有(you)較(jiao)大區別，干式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)一般(ban)采(cai)用(yong)機械振打或聲波清灰等方式(shi)清除(chu)電(dian)(dian)(dian)極上的(de)積灰，而(er)濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)(qi)則采(cai)用(yong)定期沖洗的(de)方式(shi)，使粉(fen)(fen)(fen)塵(chen)(chen)(chen)隨著(zhu)沖刷液的(de)流(liu)動而(er)清除(chu)。