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)除塵(chen)器主要有兩種結(jie)構形式(shi)，一種是(shi)使用(yong)耐腐蝕(shi)(shi)導(dao)電(dian)材(cai)料（可(ke)以為導(dao)電(dian)性(xing)(xing)能(neng)優良(liang)的(de)的(de)非(fei)金(jin)屬(shu)材(cai)料或具有耐腐蝕(shi)(shi)特性(xing)(xing)的(de)金(jin)屬(shu)材(cai)料）做(zuo)集塵(chen)極，另一種是(shi)用(yong)通過(guo)噴水或溢(yi)流水形成導(dao)電(dian)水膜，利用(yong)不(bu)導(dao)電(dian)的(de)非(fei)金(jin)屬(shu)材(cai)料做(zuo)集塵(chen)極。

收塵原理

濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器和(he)與(yu)干(gan)(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器的收塵(chen)(chen)(chen)原理相同，都是靠高(gao)壓電(dian)(dian)暈放(fang)電(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)荷(he)(he)電(dian)(dian)，荷(he)(he)電(dian)(dian)后的粉(fen)塵(chen)(chen)(chen)在(zai)(zai)電(dian)(dian)場力的作用(yong)下(xia)到達集塵(chen)(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)器主要處理含水(shui)很低的干(gan)(gan)氣(qi)體(ti)(ti)，濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器主要處理含水(shui)較高(gao)乃至飽(bao)和(he)的濕(shi)氣(qi)體(ti)(ti)。在(zai)(zai)對集塵(chen)(chen)(chen)板/管(guan)上捕集到的粉(fen)塵(chen)(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)(shi)(shi)上WESP與(yu)DESP有較大區別，干(gan)(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器一般采用(yong)機(ji)械振打或聲波清灰等(deng)方式(shi)(shi)(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)極(ji)上的積灰，而濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)器則采用(yong)定(ding)期沖洗的方式(shi)(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)隨(sui)著沖刷液的流動而清除(chu)(chu)(chu)。