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(dian)(dian)除塵(chen)(chen)器主(zhu)要(yao)有兩(liang)種結構形式(shi)，一種是(shi)使用耐(nai)腐蝕導(dao)電(dian)(dian)材(cai)料(liao)（可以為導(dao)電(dian)(dian)性能(neng)優良的的非金屬(shu)(shu)材(cai)料(liao)或(huo)具有耐(nai)腐蝕特性的金屬(shu)(shu)材(cai)料(liao)）做(zuo)集塵(chen)(chen)極，另一種是(shi)用通過(guo)噴(pen)水或(huo)溢流水形成導(dao)電(dian)(dian)水膜(mo)，利用不導(dao)電(dian)(dian)的非金屬(shu)(shu)材(cai)料(liao)做(zuo)集塵(chen)(chen)極。

收塵原理(li)

濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)和與干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)收塵(chen)(chen)(chen)原理(li)相同，都是(shi)靠高壓電(dian)(dian)暈放電(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉(fen)塵(chen)(chen)(chen)在(zai)(zai)電(dian)(dian)場(chang)力的(de)作用(yong)(yong)下到(dao)達集(ji)塵(chen)(chen)(chen)板(ban)/管。干式(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處理(li)含(han)(han)水(shui)很(hen)低的(de)干氣體(ti)，濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)主要處理(li)含(han)(han)水(shui)較(jiao)高乃至飽和的(de)濕(shi)氣體(ti)。在(zai)(zai)對(dui)集(ji)塵(chen)(chen)(chen)板(ban)/管上(shang)(shang)捕集(ji)到(dao)的(de)粉(fen)塵(chen)(chen)(chen)清除(chu)(chu)方式(shi)(shi)(shi)上(shang)(shang)WESP與DESP有較(jiao)大區別，干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)一般采用(yong)(yong)機械(xie)振打(da)或(huo)聲波清灰等方式(shi)(shi)(shi)清除(chu)(chu)電(dian)(dian)極上(shang)(shang)的(de)積灰，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)則采用(yong)(yong)定(ding)期(qi)沖(chong)洗的(de)方式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)隨著沖(chong)刷(shua)液的(de)流動(dong)而清除(chu)(chu)。