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)電除塵(chen)器主要有兩種(zhong)結(jie)構形(xing)(xing)式(shi)，一種(zhong)是使用(yong)(yong)耐(nai)腐(fu)蝕導(dao)(dao)電材(cai)(cai)料（可(ke)以為導(dao)(dao)電性(xing)能優良的的非金屬(shu)材(cai)(cai)料或具(ju)有耐(nai)腐(fu)蝕特性(xing)的金屬(shu)材(cai)(cai)料）做(zuo)集塵(chen)極，另一種(zhong)是用(yong)(yong)通過噴水或溢流水形(xing)(xing)成(cheng)導(dao)(dao)電水膜，利(li)用(yong)(yong)不(bu)導(dao)(dao)電的非金屬(shu)材(cai)(cai)料做(zuo)集塵(chen)極。

收塵原理

濕式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)和與(yu)干式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)的收(shou)塵(chen)原理(li)相同，都是靠高壓電(dian)(dian)暈(yun)放電(dian)(dian)使(shi)得粉(fen)塵(chen)荷(he)電(dian)(dian)，荷(he)電(dian)(dian)后的粉(fen)塵(chen)在(zai)電(dian)(dian)場(chang)力(li)的作用(yong)下(xia)到達集(ji)塵(chen)板(ban)/管。干式(shi)(shi)(shi)(shi)電(dian)(dian)收(shou)塵(chen)器(qi)(qi)主要處(chu)理(li)含水(shui)(shui)很低的干氣體，濕式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)主要處(chu)理(li)含水(shui)(shui)較高乃至飽和的濕氣體。在(zai)對(dui)集(ji)塵(chen)板(ban)/管上捕集(ji)到的粉(fen)塵(chen)清(qing)除(chu)(chu)方(fang)式(shi)(shi)(shi)(shi)上WESP與(yu)DESP有較大(da)區(qu)別，干式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)一般采用(yong)機械振打或聲波清(qing)灰(hui)等方(fang)式(shi)(shi)(shi)(shi)清(qing)除(chu)(chu)電(dian)(dian)極上的積灰(hui)，而濕式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)則采用(yong)定期沖洗(xi)的方(fang)式(shi)(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)隨著沖刷液的流(liu)動而清(qing)除(chu)(chu)。