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(shi)式電(dian)除塵器主要有兩種(zhong)結構形式，一種(zhong)是使用(yong)(yong)耐(nai)腐蝕(shi)導電(dian)材(cai)(cai)料（可以為導電(dian)性能優良的的非金屬材(cai)(cai)料或具有耐(nai)腐蝕(shi)特(te)性的金屬材(cai)(cai)料）做集塵極，另一種(zhong)是用(yong)(yong)通(tong)過噴水或溢流(liu)水形成導電(dian)水膜，利用(yong)(yong)不導電(dian)的非金屬材(cai)(cai)料做集塵極。

收塵原理

濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)和與干(gan)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)的(de)收塵(chen)(chen)原理(li)相同，都是靠(kao)高(gao)壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使得(de)粉塵(chen)(chen)荷(he)電(dian)(dian)(dian)，荷(he)電(dian)(dian)(dian)后的(de)粉塵(chen)(chen)在(zai)電(dian)(dian)(dian)場力的(de)作(zuo)用下到達(da)集塵(chen)(chen)板/管。干(gan)式(shi)電(dian)(dian)(dian)收塵(chen)(chen)器(qi)主要(yao)處(chu)理(li)含(han)(han)水(shui)很低的(de)干(gan)氣體，濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)主要(yao)處(chu)理(li)含(han)(han)水(shui)較高(gao)乃至飽和的(de)濕(shi)氣體。在(zai)對集塵(chen)(chen)板/管上捕集到的(de)粉塵(chen)(chen)清(qing)除(chu)方式(shi)上WESP與DESP有較大區別，干(gan)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)一般采用機械振打(da)或聲波清(qing)灰等(deng)方式(shi)清(qing)除(chu)電(dian)(dian)(dian)極上的(de)積灰，而濕(shi)式(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)則采用定(ding)期沖(chong)洗的(de)方式(shi)，使粉塵(chen)(chen)隨著沖(chong)刷(shua)液的(de)流動(dong)而清(qing)除(chu)。