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)除塵器主要有兩種結構形式，一種是使用(yong)耐(nai)腐蝕導電(dian)(dian)材(cai)料（可以(yi)為導電(dian)(dian)性能優良(liang)的(de)的(de)非金(jin)屬(shu)材(cai)料或具(ju)有耐(nai)腐蝕特性的(de)金(jin)屬(shu)材(cai)料）做(zuo)集塵極(ji)，另(ling)一種是用(yong)通(tong)過噴水(shui)或溢流水(shui)形成導電(dian)(dian)水(shui)膜(mo)，利用(yong)不(bu)導電(dian)(dian)的(de)非金(jin)屬(shu)材(cai)料做(zuo)集塵極(ji)。

收塵原理

濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)和與干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)的(de)收塵(chen)(chen)原理相同，都是靠高壓電(dian)(dian)暈放(fang)電(dian)(dian)使(shi)得(de)粉塵(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉塵(chen)(chen)在電(dian)(dian)場(chang)力的(de)作用(yong)(yong)下(xia)到達集塵(chen)(chen)板/管。干式(shi)(shi)(shi)電(dian)(dian)收塵(chen)(chen)器(qi)(qi)(qi)主要處理含水很低的(de)干氣體，濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)主要處理含水較(jiao)高乃(nai)至(zhi)飽和的(de)濕(shi)氣體。在對(dui)集塵(chen)(chen)板/管上捕集到的(de)粉塵(chen)(chen)清(qing)(qing)除(chu)(chu)方式(shi)(shi)(shi)上WESP與DESP有較(jiao)大區別，干式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)一般采用(yong)(yong)機械振打或聲波清(qing)(qing)灰(hui)等方式(shi)(shi)(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)極上的(de)積(ji)灰(hui)，而濕(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)則(ze)采用(yong)(yong)定期沖洗的(de)方式(shi)(shi)(shi)，使(shi)粉塵(chen)(chen)隨著沖刷液的(de)流動而清(qing)(qing)除(chu)(chu)。