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。

濕式電除塵器主要(yao)有(you)兩(liang)種(zhong)結構形(xing)式，一(yi)種(zhong)是使用耐(nai)腐(fu)蝕(shi)導(dao)電材(cai)(cai)料(liao)（可以為導(dao)電性能優(you)良的的非金(jin)(jin)屬材(cai)(cai)料(liao)或(huo)具有(you)耐(nai)腐(fu)蝕(shi)特性的金(jin)(jin)屬材(cai)(cai)料(liao)）做(zuo)集塵極，另一(yi)種(zhong)是用通過噴水(shui)或(huo)溢流水(shui)形(xing)成(cheng)導(dao)電水(shui)膜，利用不導(dao)電的非金(jin)(jin)屬材(cai)(cai)料(liao)做(zuo)集塵極。

收塵原(yuan)理

濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)器(qi)(qi)(qi)和與(yu)干(gan)(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)器(qi)(qi)(qi)的(de)(de)收塵(chen)(chen)原理(li)相同，都是靠高壓電(dian)(dian)暈(yun)放電(dian)(dian)使(shi)(shi)得(de)粉(fen)(fen)塵(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后(hou)的(de)(de)粉(fen)(fen)塵(chen)(chen)在電(dian)(dian)場力的(de)(de)作(zuo)用(yong)下到(dao)達集塵(chen)(chen)板/管(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)收塵(chen)(chen)器(qi)(qi)(qi)主要(yao)處(chu)(chu)理(li)含水很低的(de)(de)干(gan)(gan)氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)器(qi)(qi)(qi)主要(yao)處(chu)(chu)理(li)含水較高乃至飽和的(de)(de)濕(shi)氣體(ti)。在對集塵(chen)(chen)板/管(guan)上捕集到(dao)的(de)(de)粉(fen)(fen)塵(chen)(chen)清(qing)(qing)除方式(shi)(shi)上WESP與(yu)DESP有較大區(qu)別，干(gan)(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)器(qi)(qi)(qi)一般(ban)采用(yong)機(ji)械振(zhen)打或聲波清(qing)(qing)灰等方式(shi)(shi)清(qing)(qing)除電(dian)(dian)極上的(de)(de)積灰，而濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)器(qi)(qi)(qi)則采用(yong)定期沖(chong)洗的(de)(de)方式(shi)(shi)，使(shi)(shi)粉(fen)(fen)塵(chen)(chen)隨(sui)著沖(chong)刷液的(de)(de)流動(dong)而清(qing)(qing)除。