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)除塵器主要有兩種(zhong)結構形式，一種(zhong)是使用耐腐蝕導(dao)電(dian)材料(liao)（可(ke)以為導(dao)電(dian)性(xing)能優良的的非(fei)金屬(shu)(shu)材料(liao)或(huo)具有耐腐蝕特性(xing)的金屬(shu)(shu)材料(liao)）做集(ji)塵極(ji)，另一種(zhong)是用通過(guo)噴水或(huo)溢流(liu)水形成導(dao)電(dian)水膜，利用不導(dao)電(dian)的非(fei)金屬(shu)(shu)材料(liao)做集(ji)塵極(ji)。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)的(de)收塵(chen)(chen)(chen)(chen)原理相同，都是靠(kao)高壓(ya)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)(shi)得粉(fen)塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后的(de)粉(fen)塵(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力(li)的(de)作用(yong)下到達(da)集(ji)塵(chen)(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要(yao)處(chu)理含水很(hen)低的(de)干(gan)氣體，濕式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)要(yao)處(chu)理含水較(jiao)高乃至(zhi)飽和的(de)濕氣體。在(zai)對集(ji)塵(chen)(chen)(chen)(chen)板/管(guan)上捕集(ji)到的(de)粉(fen)塵(chen)(chen)(chen)(chen)清除(chu)(chu)(chu)方式(shi)(shi)上WESP與DESP有較(jiao)大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)一般采用(yong)機械振打或聲波清灰(hui)等方式(shi)(shi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)極上的(de)積灰(hui)，而(er)濕式(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)器(qi)(qi)則采用(yong)定(ding)期沖洗的(de)方式(shi)(shi)，使(shi)(shi)粉(fen)塵(chen)(chen)(chen)(chen)隨(sui)著(zhu)沖刷液的(de)流動(dong)而(er)清除(chu)(chu)(chu)。