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)除塵器主要有(you)兩種(zhong)(zhong)結構形式(shi)，一(yi)(yi)種(zhong)(zhong)是使用(yong)耐(nai)腐蝕(shi)導電(dian)材料(liao)（可(ke)以(yi)為(wei)導電(dian)性能優良的的非(fei)(fei)金屬材料(liao)或具有(you)耐(nai)腐蝕(shi)特性的金屬材料(liao)）做集塵極，另一(yi)(yi)種(zhong)(zhong)是用(yong)通過(guo)噴水或溢(yi)流水形成導電(dian)水膜，利用(yong)不導電(dian)的非(fei)(fei)金屬材料(liao)做集塵極。

收塵原理

濕式電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)和與干(gan)式電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)原(yuan)理(li)(li)相同，都是(shi)靠高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)場力(li)的作用(yong)下(xia)到達集塵(chen)(chen)(chen)板/管。干(gan)式電(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處(chu)理(li)(li)含水(shui)很低的干(gan)氣(qi)體(ti)，濕式電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)主要處(chu)理(li)(li)含水(shui)較高(gao)乃至飽和的濕氣(qi)體(ti)。在對集塵(chen)(chen)(chen)板/管上捕集到的粉(fen)塵(chen)(chen)(chen)清(qing)除方式上WESP與DESP有較大區別，干(gan)式電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)一般采用(yong)機械(xie)振(zhen)打或聲波清(qing)灰等方式清(qing)除電(dian)(dian)(dian)極上的積灰，而(er)濕式電(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗的方式，使粉(fen)塵(chen)(chen)(chen)隨著(zhu)沖刷液(ye)的流動(dong)而(er)清(qing)除。