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)(dian)除塵(chen)器(qi)主要有(you)兩種結構形式，一種是使用耐(nai)腐蝕導電(dian)(dian)材(cai)料(liao)（可(ke)以為導電(dian)(dian)性(xing)能優良的(de)的(de)非金(jin)(jin)屬材(cai)料(liao)或具(ju)有(you)耐(nai)腐蝕特性(xing)的(de)金(jin)(jin)屬材(cai)料(liao)）做(zuo)集塵(chen)極，另一種是用通(tong)過噴水(shui)(shui)或溢流水(shui)(shui)形成導電(dian)(dian)水(shui)(shui)膜，利(li)用不(bu)導電(dian)(dian)的(de)非金(jin)(jin)屬材(cai)料(liao)做(zuo)集塵(chen)極。

收塵原理

濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器和與(yu)(yu)干式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器的收塵(chen)(chen)(chen)原(yuan)理相同，都是靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得(de)粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力的作(zuo)用(yong)下到達集(ji)(ji)塵(chen)(chen)(chen)板/管。干式(shi)電(dian)(dian)(dian)收塵(chen)(chen)(chen)器主(zhu)要處理含(han)水(shui)很(hen)低的干氣(qi)體，濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器主(zhu)要處理含(han)水(shui)較高(gao)乃(nai)至飽和的濕(shi)(shi)氣(qi)體。在對集(ji)(ji)塵(chen)(chen)(chen)板/管上捕集(ji)(ji)到的粉(fen)塵(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)方式(shi)上WESP與(yu)(yu)DESP有較大區(qu)別，干式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器一般采用(yong)機械振(zhen)打或(huo)聲(sheng)波清(qing)灰等(deng)方式(shi)清(qing)除(chu)(chu)(chu)電(dian)(dian)(dian)極上的積灰，而濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器則采用(yong)定(ding)期沖洗的方式(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)隨著沖刷液的流動而清(qing)除(chu)(chu)(chu)。