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。

濕式電(dian)(dian)除塵(chen)(chen)器主要(yao)有兩種(zhong)結構(gou)形式，一種(zhong)是使(shi)用耐(nai)腐(fu)蝕(shi)導(dao)電(dian)(dian)材(cai)料(liao)（可以為導(dao)電(dian)(dian)性(xing)能優良的(de)的(de)非金屬(shu)(shu)材(cai)料(liao)或具有耐(nai)腐(fu)蝕(shi)特性(xing)的(de)金屬(shu)(shu)材(cai)料(liao)）做(zuo)集塵(chen)(chen)極，另(ling)一種(zhong)是用通過噴水(shui)(shui)(shui)或溢(yi)流水(shui)(shui)(shui)形成導(dao)電(dian)(dian)水(shui)(shui)(shui)膜，利用不導(dao)電(dian)(dian)的(de)非金屬(shu)(shu)材(cai)料(liao)做(zuo)集塵(chen)(chen)極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器和與干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器的(de)(de)收(shou)(shou)塵(chen)(chen)原理(li)(li)相同，都是靠(kao)高(gao)壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使(shi)得粉(fen)(fen)塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉(fen)(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)(de)作用(yong)(yong)下到達集塵(chen)(chen)板(ban)/管(guan)。干(gan)式(shi)電(dian)(dian)(dian)收(shou)(shou)塵(chen)(chen)器主要(yao)處(chu)(chu)理(li)(li)含水很低(di)的(de)(de)干(gan)氣體(ti)，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器主要(yao)處(chu)(chu)理(li)(li)含水較(jiao)(jiao)高(gao)乃(nai)至飽(bao)和的(de)(de)濕(shi)氣體(ti)。在(zai)對集塵(chen)(chen)板(ban)/管(guan)上捕集到的(de)(de)粉(fen)(fen)塵(chen)(chen)清(qing)除(chu)(chu)方式(shi)上WESP與DESP有較(jiao)(jiao)大區別，干(gan)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器一(yi)般采(cai)用(yong)(yong)機械振(zhen)打或聲波清(qing)灰(hui)(hui)等方式(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)積灰(hui)(hui)，而(er)濕(shi)式(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器則采(cai)用(yong)(yong)定期(qi)沖洗的(de)(de)方式(shi)，使(shi)粉(fen)(fen)塵(chen)(chen)隨著沖刷液的(de)(de)流動而(er)清(qing)除(chu)(chu)。