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(shi)式(shi)電(dian)(dian)除塵(chen)器主要(yao)有(you)(you)兩種結構形式(shi)，一種是使用(yong)耐腐蝕導(dao)電(dian)(dian)材(cai)(cai)料（可以為導(dao)電(dian)(dian)性(xing)能優良的(de)的(de)非金屬材(cai)(cai)料或具有(you)(you)耐腐蝕特性(xing)的(de)金屬材(cai)(cai)料）做(zuo)集塵(chen)極，另一種是用(yong)通(tong)過(guo)噴水(shui)(shui)或溢流水(shui)(shui)形成導(dao)電(dian)(dian)水(shui)(shui)膜，利(li)用(yong)不導(dao)電(dian)(dian)的(de)非金屬材(cai)(cai)料做(zuo)集塵(chen)極。

收塵原(yuan)理

濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)和與(yu)(yu)干式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)的(de)(de)收塵(chen)(chen)(chen)原理相同，都是靠高(gao)壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得粉(fen)(fen)(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)(fen)(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)作用(yong)(yong)下到(dao)達集塵(chen)(chen)(chen)板/管。干式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)(qi)主(zhu)要(yao)處(chu)理含(han)水很(hen)低的(de)(de)干氣體，濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)主(zhu)要(yao)處(chu)理含(han)水較高(gao)乃至飽和的(de)(de)濕(shi)氣體。在對集塵(chen)(chen)(chen)板/管上捕集到(dao)的(de)(de)粉(fen)(fen)(fen)塵(chen)(chen)(chen)清(qing)除方(fang)式(shi)上WESP與(yu)(yu)DESP有較大區別，干式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)一般采(cai)用(yong)(yong)機械振打或聲波清(qing)灰等(deng)方(fang)式(shi)清(qing)除電(dian)(dian)(dian)極上的(de)(de)積灰，而(er)濕(shi)式(shi)電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)(qi)則采(cai)用(yong)(yong)定期沖洗的(de)(de)方(fang)式(shi)，使(shi)粉(fen)(fen)(fen)塵(chen)(chen)(chen)隨著(zhu)沖刷液的(de)(de)流動而(er)清(qing)除。