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(chen)器主(zhu)要有(you)兩(liang)種結(jie)構形式，一(yi)種是使(shi)用耐(nai)腐蝕導(dao)電(dian)材料(liao)(liao)（可以(yi)為導(dao)電(dian)性能優良的的非(fei)(fei)金(jin)(jin)屬材料(liao)(liao)或(huo)具(ju)有(you)耐(nai)腐蝕特(te)性的金(jin)(jin)屬材料(liao)(liao)）做集塵(chen)極，另一(yi)種是用通過噴水(shui)或(huo)溢(yi)流(liu)水(shui)形成導(dao)電(dian)水(shui)膜，利(li)用不導(dao)電(dian)的非(fei)(fei)金(jin)(jin)屬材料(liao)(liao)做集塵(chen)極。

收塵原理

濕(shi)式電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)和與干(gan)式電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)的(de)(de)收塵(chen)原理相同，都是靠高壓(ya)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉(fen)塵(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作用(yong)下到達集塵(chen)板/管(guan)。干(gan)式電(dian)(dian)(dian)(dian)收塵(chen)器(qi)(qi)主要(yao)處理含水很低的(de)(de)干(gan)氣(qi)體，濕(shi)式電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)主要(yao)處理含水較高乃至飽(bao)和的(de)(de)濕(shi)氣(qi)體。在對集塵(chen)板/管(guan)上(shang)捕集到的(de)(de)粉(fen)塵(chen)清除方(fang)(fang)式上(shang)WESP與DESP有較大區(qu)別，干(gan)式電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)一(yi)般采用(yong)機(ji)械振打(da)或聲(sheng)波清灰等方(fang)(fang)式清除電(dian)(dian)(dian)(dian)極上(shang)的(de)(de)積灰，而濕(shi)式電(dian)(dian)(dian)(dian)除塵(chen)器(qi)(qi)則采用(yong)定期沖(chong)(chong)洗的(de)(de)方(fang)(fang)式，使粉(fen)塵(chen)隨著(zhu)沖(chong)(chong)刷液的(de)(de)流動而清除。