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)(dian)除塵器主要有兩(liang)種結構形式，一種是使用耐(nai)(nai)腐(fu)蝕導(dao)電(dian)(dian)(dian)材(cai)料（可以為導(dao)電(dian)(dian)(dian)性能優良的的非金屬材(cai)料或具有耐(nai)(nai)腐(fu)蝕特性的金屬材(cai)料）做集(ji)塵極，另一種是用通(tong)過噴(pen)水(shui)或溢(yi)流水(shui)形成導(dao)電(dian)(dian)(dian)水(shui)膜，利用不(bu)導(dao)電(dian)(dian)(dian)的非金屬材(cai)料做集(ji)塵極。

收塵原理

濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器和與(yu)干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器的(de)收(shou)(shou)塵(chen)原理(li)相同，都是靠高壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使得粉(fen)塵(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)粉(fen)塵(chen)在電(dian)(dian)(dian)場(chang)力的(de)作用(yong)下(xia)到達(da)集塵(chen)板/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)收(shou)(shou)塵(chen)器主要處理(li)含(han)水很低的(de)干(gan)氣體，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器主要處理(li)含(han)水較高乃(nai)至飽和的(de)濕(shi)(shi)氣體。在對集塵(chen)板/管上捕集到的(de)粉(fen)塵(chen)清(qing)除(chu)(chu)方(fang)式(shi)(shi)(shi)上WESP與(yu)DESP有較大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器一般(ban)采用(yong)機械振打或聲波清(qing)灰等方(fang)式(shi)(shi)(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)極(ji)上的(de)積灰，而(er)濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器則(ze)采用(yong)定(ding)期沖(chong)洗的(de)方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)隨著沖(chong)刷(shua)液的(de)流動而(er)清(qing)除(chu)(chu)。