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(zhong)結(jie)構形式，一種(zhong)是(shi)使用(yong)耐(nai)腐(fu)蝕(shi)導(dao)電(dian)(dian)材(cai)(cai)料（可(ke)以為導(dao)電(dian)(dian)性(xing)能(neng)優良的的非金(jin)屬(shu)(shu)材(cai)(cai)料或具(ju)有耐(nai)腐(fu)蝕(shi)特性(xing)的金(jin)屬(shu)(shu)材(cai)(cai)料）做集塵極(ji)，另一種(zhong)是(shi)用(yong)通過噴水(shui)或溢流水(shui)形成(cheng)導(dao)電(dian)(dian)水(shui)膜，利用(yong)不導(dao)電(dian)(dian)的非金(jin)屬(shu)(shu)材(cai)(cai)料做集塵極(ji)。

收塵(chen)原理(li)

濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)和與干式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)的收塵(chen)(chen)(chen)原理相同(tong)，都是靠高壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使(shi)得粉塵(chen)(chen)(chen)荷電(dian)(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)(dian)后的粉塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)(dian)場力的作用(yong)下到(dao)達集塵(chen)(chen)(chen)板(ban)(ban)/管。干式(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處理含水很低的干氣體(ti)(ti)，濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)主要處理含水較高乃至飽和的濕(shi)(shi)氣體(ti)(ti)。在對集塵(chen)(chen)(chen)板(ban)(ban)/管上捕(bu)集到(dao)的粉塵(chen)(chen)(chen)清(qing)除方(fang)式(shi)上WESP與DESP有較大(da)區別(bie)，干式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)一般采用(yong)機械振打(da)或聲(sheng)波(bo)清(qing)灰等(deng)方(fang)式(shi)清(qing)除電(dian)(dian)(dian)(dian)(dian)極上的積灰，而(er)濕(shi)(shi)式(shi)電(dian)(dian)(dian)(dian)(dian)除塵(chen)(chen)(chen)器(qi)則采用(yong)定期沖洗的方(fang)式(shi)，使(shi)粉塵(chen)(chen)(chen)隨著沖刷液的流(liu)動(dong)而(er)清(qing)除。