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(shi)式(shi)電(dian)除塵器(qi)主要有兩種結構形式(shi)，一種是(shi)使用(yong)(yong)耐腐(fu)蝕導(dao)電(dian)材料（可以為導(dao)電(dian)性(xing)能優良的(de)的(de)非金屬材料或(huo)具有耐腐(fu)蝕特性(xing)的(de)金屬材料）做集塵極(ji)，另(ling)一種是(shi)用(yong)(yong)通過噴水或(huo)溢流水形成導(dao)電(dian)水膜(mo)，利用(yong)(yong)不導(dao)電(dian)的(de)非金屬材料做集塵極(ji)。

收(shou)塵原理

濕式(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)和(he)與(yu)干(gan)(gan)式(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)收塵(chen)(chen)(chen)(chen)(chen)原理(li)相同(tong)，都是(shi)靠高(gao)壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)場力的(de)作用(yong)下到(dao)達集塵(chen)(chen)(chen)(chen)(chen)板(ban)/管。干(gan)(gan)式(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理(li)含(han)水很低的(de)干(gan)(gan)氣體(ti)，濕式(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理(li)含(han)水較高(gao)乃(nai)至飽(bao)和(he)的(de)濕氣體(ti)。在對集塵(chen)(chen)(chen)(chen)(chen)板(ban)/管上捕集到(dao)的(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)清(qing)除(chu)(chu)(chu)(chu)(chu)方(fang)式(shi)上WESP與(yu)DESP有較大區別，干(gan)(gan)式(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)一般采用(yong)機械振打(da)或聲波清(qing)灰(hui)(hui)等方(fang)式(shi)清(qing)除(chu)(chu)(chu)(chu)(chu)電(dian)(dian)極上的(de)積灰(hui)(hui)，而濕式(shi)電(dian)(dian)除(chu)(chu)(chu)(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗的(de)方(fang)式(shi)，使(shi)粉(fen)塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液的(de)流動而清(qing)除(chu)(chu)(chu)(chu)(chu)。