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)(dian)除塵(chen)器主(zhu)要(yao)有兩(liang)種結構(gou)形(xing)式(shi)，一(yi)種是使(shi)用(yong)(yong)耐(nai)腐蝕(shi)導電(dian)(dian)材料(liao)（可以為導電(dian)(dian)性能優(you)良的(de)(de)(de)的(de)(de)(de)非金(jin)屬(shu)材料(liao)或(huo)具(ju)有耐(nai)腐蝕(shi)特性的(de)(de)(de)金(jin)屬(shu)材料(liao)）做集(ji)塵(chen)極，另一(yi)種是用(yong)(yong)通過噴水或(huo)溢流(liu)水形(xing)成(cheng)導電(dian)(dian)水膜(mo)，利用(yong)(yong)不(bu)導電(dian)(dian)的(de)(de)(de)非金(jin)屬(shu)材料(liao)做集(ji)塵(chen)極。

收塵(chen)原理

濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器和(he)與干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器的(de)(de)收(shou)塵(chen)(chen)原理(li)相同(tong)，都是(shi)靠高(gao)(gao)壓電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)使得粉(fen)(fen)塵(chen)(chen)荷電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)(de)粉(fen)(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用下到達集(ji)塵(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)收(shou)塵(chen)(chen)器主(zhu)要處理(li)含(han)水很低的(de)(de)干(gan)氣(qi)體，濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器主(zhu)要處理(li)含(han)水較(jiao)高(gao)(gao)乃至飽(bao)和(he)的(de)(de)濕(shi)氣(qi)體。在(zai)對集(ji)塵(chen)(chen)板/管(guan)上(shang)(shang)捕集(ji)到的(de)(de)粉(fen)(fen)塵(chen)(chen)清(qing)除(chu)方式(shi)(shi)(shi)上(shang)(shang)WESP與DESP有較(jiao)大區別，干(gan)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器一般(ban)采(cai)用機械振打或聲波清(qing)灰(hui)等方式(shi)(shi)(shi)清(qing)除(chu)電(dian)(dian)(dian)(dian)極上(shang)(shang)的(de)(de)積灰(hui)，而(er)濕(shi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)器則采(cai)用定期沖洗(xi)的(de)(de)方式(shi)(shi)(shi)，使粉(fen)(fen)塵(chen)(chen)隨著沖刷液(ye)的(de)(de)流動而(er)清(qing)除(chu)。