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)電除塵(chen)器主(zhu)要(yao)有(you)兩種(zhong)結構形(xing)式(shi)，一種(zhong)是使(shi)用耐(nai)腐蝕(shi)導(dao)電材料(liao)（可(ke)以(yi)為導(dao)電性能優良的的非金屬材料(liao)或(huo)具有(you)耐(nai)腐蝕(shi)特性的金屬材料(liao)）做集塵(chen)極(ji)，另(ling)一種(zhong)是用通過噴(pen)水或(huo)溢流水形(xing)成導(dao)電水膜，利用不導(dao)電的非金屬材料(liao)做集塵(chen)極(ji)。

收(shou)塵原理(li)

濕式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器和與干(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器的收(shou)(shou)塵(chen)原理(li)相同(tong)，都是靠高(gao)壓(ya)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)塵(chen)荷(he)電(dian)(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)(dian)后(hou)的粉(fen)塵(chen)在電(dian)(dian)(dian)(dian)場力的作用下到達集(ji)塵(chen)板(ban)/管。干(gan)式(shi)電(dian)(dian)(dian)(dian)收(shou)(shou)塵(chen)器主要處(chu)理(li)含(han)水很低(di)的干(gan)氣體，濕式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器主要處(chu)理(li)含(han)水較高(gao)乃(nai)至飽和的濕氣體。在對集(ji)塵(chen)板(ban)/管上(shang)捕集(ji)到的粉(fen)塵(chen)清(qing)除(chu)方式(shi)上(shang)WESP與DESP有較大區別，干(gan)式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器一般(ban)采用機(ji)械振打(da)或(huo)聲(sheng)波清(qing)灰(hui)等方式(shi)清(qing)除(chu)電(dian)(dian)(dian)(dian)極(ji)上(shang)的積灰(hui)，而濕式(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)器則采用定期沖洗的方式(shi)，使粉(fen)塵(chen)隨著沖刷液(ye)的流動而清(qing)除(chu)。