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)除塵(chen)器(qi)主(zhu)要有兩種結構形式，一(yi)種是使(shi)用耐(nai)腐蝕(shi)導(dao)(dao)電(dian)(dian)材料(liao)（可以為導(dao)(dao)電(dian)(dian)性(xing)能優(you)良的(de)(de)的(de)(de)非金(jin)屬材料(liao)或具有耐(nai)腐蝕(shi)特(te)性(xing)的(de)(de)金(jin)屬材料(liao)）做集塵(chen)極，另一(yi)種是用通過噴水(shui)(shui)或溢流水(shui)(shui)形成(cheng)導(dao)(dao)電(dian)(dian)水(shui)(shui)膜，利用不導(dao)(dao)電(dian)(dian)的(de)(de)非金(jin)屬材料(liao)做集塵(chen)極。

收塵原理

濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)(qi)和(he)與(yu)干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)(qi)的(de)(de)(de)收塵(chen)原理(li)相同，都是靠高壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使(shi)(shi)得粉(fen)(fen)塵(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)(de)粉(fen)(fen)塵(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)(de)作(zuo)用下到達集(ji)塵(chen)板/管。干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收塵(chen)器(qi)(qi)(qi)主要處理(li)含水很低的(de)(de)(de)干氣(qi)體(ti)，濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)(qi)主要處理(li)含水較(jiao)高乃至飽和(he)的(de)(de)(de)濕(shi)氣(qi)體(ti)。在對集(ji)塵(chen)板/管上捕集(ji)到的(de)(de)(de)粉(fen)(fen)塵(chen)清除方(fang)式(shi)(shi)(shi)上WESP與(yu)DESP有較(jiao)大區(qu)別，干式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)(qi)一般采用機(ji)械振打或聲波清灰(hui)等方(fang)式(shi)(shi)(shi)清除電(dian)(dian)(dian)(dian)極上的(de)(de)(de)積灰(hui)，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)(qi)則采用定期(qi)沖洗的(de)(de)(de)方(fang)式(shi)(shi)(shi)，使(shi)(shi)粉(fen)(fen)塵(chen)隨(sui)著沖刷(shua)液的(de)(de)(de)流動而清除。