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)器主要有兩種(zhong)(zhong)結構形(xing)式(shi)，一(yi)種(zhong)(zhong)是(shi)使用(yong)耐(nai)腐蝕(shi)導(dao)電材(cai)(cai)料（可以為(wei)導(dao)電性(xing)能優良的的非金屬材(cai)(cai)料或具有耐(nai)腐蝕(shi)特性(xing)的金屬材(cai)(cai)料）做集塵(chen)極，另一(yi)種(zhong)(zhong)是(shi)用(yong)通(tong)過噴水(shui)(shui)或溢流水(shui)(shui)形(xing)成導(dao)電水(shui)(shui)膜(mo)，利用(yong)不導(dao)電的非金屬材(cai)(cai)料做集塵(chen)極。

收塵原理

濕式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)和與干(gan)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原理相同，都是靠高壓電(dian)暈放電(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)，荷電(dian)后(hou)的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在(zai)電(dian)場力的(de)(de)(de)作(zuo)用(yong)(yong)下到達集(ji)塵(chen)(chen)(chen)(chen)(chen)板(ban)/管(guan)。干(gan)式(shi)電(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理含水(shui)很低的(de)(de)(de)干(gan)氣體，濕式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理含水(shui)較(jiao)高乃(nai)至飽和的(de)(de)(de)濕氣體。在(zai)對集(ji)塵(chen)(chen)(chen)(chen)(chen)板(ban)/管(guan)上(shang)捕集(ji)到的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清除(chu)(chu)方(fang)式(shi)上(shang)WESP與DESP有(you)較(jiao)大區別(bie)，干(gan)式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)一般(ban)采用(yong)(yong)機(ji)械振(zhen)打或(huo)聲波清灰等方(fang)式(shi)清除(chu)(chu)電(dian)極上(shang)的(de)(de)(de)積灰，而濕式(shi)電(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)則采用(yong)(yong)定期沖(chong)洗(xi)的(de)(de)(de)方(fang)式(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨著(zhu)沖(chong)刷液的(de)(de)(de)流動(dong)而清除(chu)(chu)。