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(chu)塵器主要有(you)兩種結構形式(shi)，一種是(shi)使用(yong)耐腐(fu)蝕導電(dian)材料(liao)（可以為導電(dian)性能優良的的非金屬(shu)(shu)材料(liao)或具有(you)耐腐(fu)蝕特(te)性的金屬(shu)(shu)材料(liao)）做集塵極，另一種是(shi)用(yong)通過(guo)噴水或溢流水形成導電(dian)水膜，利用(yong)不導電(dian)的非金屬(shu)(shu)材料(liao)做集塵極。

收塵(chen)原理

濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)和(he)與干(gan)(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)的(de)(de)收(shou)塵(chen)(chen)原理(li)相同，都是靠高(gao)壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后(hou)的(de)(de)粉(fen)塵(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)作(zuo)用(yong)下(xia)到(dao)(dao)達集(ji)塵(chen)(chen)板/管。干(gan)(gan)式(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)水很低(di)的(de)(de)干(gan)(gan)氣(qi)體(ti)(ti)，濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)主要處理(li)含(han)水較(jiao)高(gao)乃至(zhi)飽和(he)的(de)(de)濕(shi)(shi)氣(qi)體(ti)(ti)。在對集(ji)塵(chen)(chen)板/管上捕集(ji)到(dao)(dao)的(de)(de)粉(fen)塵(chen)(chen)清除(chu)(chu)方式(shi)上WESP與DESP有較(jiao)大區別，干(gan)(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)一(yi)般采(cai)用(yong)機(ji)械振打或聲波清灰(hui)等(deng)方式(shi)清除(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)積灰(hui)，而濕(shi)(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)則采(cai)用(yong)定期沖洗的(de)(de)方式(shi)，使粉(fen)塵(chen)(chen)隨(sui)著沖刷液的(de)(de)流動(dong)而清除(chu)(chu)。