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)除塵器主(zhu)要有兩種(zhong)結構形式，一種(zhong)是使(shi)用(yong)(yong)耐(nai)腐蝕導(dao)電(dian)材料(liao)(liao)（可以為導(dao)電(dian)性(xing)能優良的的非金屬(shu)材料(liao)(liao)或具有耐(nai)腐蝕特(te)性(xing)的金屬(shu)材料(liao)(liao)）做集塵極，另一種(zhong)是用(yong)(yong)通過(guo)噴(pen)水(shui)或溢(yi)流水(shui)形成導(dao)電(dian)水(shui)膜，利用(yong)(yong)不導(dao)電(dian)的非金屬(shu)材料(liao)(liao)做集塵極。

收塵原理

濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器和(he)與干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器的(de)收(shou)塵(chen)(chen)原理相(xiang)同，都是靠高(gao)壓電(dian)(dian)暈放電(dian)(dian)使得粉(fen)塵(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后(hou)的(de)粉(fen)塵(chen)(chen)在電(dian)(dian)場力的(de)作用(yong)下到達集塵(chen)(chen)板/管。干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)收(shou)塵(chen)(chen)器主要處理含(han)水很低的(de)干(gan)氣(qi)體，濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器主要處理含(han)水較高(gao)乃至飽和(he)的(de)濕(shi)氣(qi)體。在對集塵(chen)(chen)板/管上捕集到的(de)粉(fen)塵(chen)(chen)清除(chu)(chu)方(fang)式(shi)(shi)(shi)(shi)上WESP與DESP有較大區別，干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器一般(ban)采用(yong)機械振打或聲波清灰(hui)等方(fang)式(shi)(shi)(shi)(shi)清除(chu)(chu)電(dian)(dian)極上的(de)積灰(hui)，而濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器則采用(yong)定期沖洗的(de)方(fang)式(shi)(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)隨著沖刷液的(de)流動而清除(chu)(chu)。