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)式電(dian)(dian)除(chu)塵(chen)器主要有兩種(zhong)結(jie)構形式，一(yi)種(zhong)是(shi)使用(yong)耐腐蝕(shi)導(dao)(dao)電(dian)(dian)材料（可以(yi)為導(dao)(dao)電(dian)(dian)性(xing)能(neng)優良的的非金(jin)屬(shu)材料或(huo)具有耐腐蝕(shi)特性(xing)的金(jin)屬(shu)材料）做(zuo)集塵(chen)極，另一(yi)種(zhong)是(shi)用(yong)通過噴水或(huo)溢流水形成導(dao)(dao)電(dian)(dian)水膜(mo)，利用(yong)不導(dao)(dao)電(dian)(dian)的非金(jin)屬(shu)材料做(zuo)集塵(chen)極。

收塵原理

濕式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)收塵(chen)(chen)(chen)(chen)(chen)原理相同，都是靠(kao)高(gao)(gao)壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)得(de)粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場力的(de)(de)作用(yong)下(xia)到達集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主要(yao)處(chu)理含(han)水(shui)很低的(de)(de)干(gan)氣(qi)(qi)體，濕式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主要(yao)處(chu)理含(han)水(shui)較高(gao)(gao)乃至飽和的(de)(de)濕氣(qi)(qi)體。在對集(ji)塵(chen)(chen)(chen)(chen)(chen)板/管上(shang)捕集(ji)到的(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清除方式(shi)(shi)上(shang)WESP與DESP有較大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)一般(ban)采用(yong)機械振打(da)或聲波清灰等(deng)方式(shi)(shi)清除電(dian)(dian)(dian)(dian)極(ji)上(shang)的(de)(de)積灰，而濕式(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)則采用(yong)定(ding)期沖洗的(de)(de)方式(shi)(shi)，使(shi)粉塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液的(de)(de)流動而清除。