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)器主要(yao)有兩種(zhong)結(jie)構形式，一(yi)種(zhong)是(shi)使(shi)用耐腐蝕(shi)導電(dian)(dian)材(cai)料(liao)（可以為導電(dian)(dian)性能優良的的非金屬(shu)材(cai)料(liao)或(huo)具有耐腐蝕(shi)特性的金屬(shu)材(cai)料(liao)）做(zuo)(zuo)集塵(chen)極(ji)(ji)，另一(yi)種(zhong)是(shi)用通過(guo)噴水或(huo)溢流水形成導電(dian)(dian)水膜，利(li)用不導電(dian)(dian)的非金屬(shu)材(cai)料(liao)做(zuo)(zuo)集塵(chen)極(ji)(ji)。

收(shou)塵原理(li)

濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)和與(yu)(yu)干(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)(chen)(chen)原理相同，都是靠高壓電(dian)(dian)暈放電(dian)(dian)使得(de)粉塵(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉塵(chen)(chen)(chen)(chen)在電(dian)(dian)場力的(de)(de)作用下到達集塵(chen)(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處理含水很低的(de)(de)干(gan)氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)主要(yao)處理含水較高乃至飽和的(de)(de)濕(shi)氣體(ti)。在對集塵(chen)(chen)(chen)(chen)板/管(guan)上捕(bu)集到的(de)(de)粉塵(chen)(chen)(chen)(chen)清(qing)除方(fang)(fang)式(shi)(shi)上WESP與(yu)(yu)DESP有較大區別(bie)，干(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)一(yi)般采用機械振打或(huo)聲(sheng)波清(qing)灰(hui)等方(fang)(fang)式(shi)(shi)清(qing)除電(dian)(dian)極上的(de)(de)積灰(hui)，而(er)濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)器(qi)則采用定(ding)期沖(chong)洗的(de)(de)方(fang)(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)隨著沖(chong)刷液的(de)(de)流動而(er)清(qing)除。