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)(dian)除塵器主要有兩種(zhong)結(jie)構形式，一種(zhong)是使(shi)用(yong)耐(nai)腐(fu)蝕導電(dian)(dian)(dian)材(cai)料（可以為導電(dian)(dian)(dian)性能優良的的非(fei)金屬(shu)材(cai)料或具(ju)有耐(nai)腐(fu)蝕特性的金屬(shu)材(cai)料）做集(ji)塵極，另一種(zhong)是用(yong)通過噴水(shui)(shui)或溢(yi)流(liu)水(shui)(shui)形成導電(dian)(dian)(dian)水(shui)(shui)膜，利(li)用(yong)不(bu)導電(dian)(dian)(dian)的非(fei)金屬(shu)材(cai)料做集(ji)塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)和與干(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)的(de)收(shou)(shou)塵(chen)(chen)(chen)(chen)(chen)原理(li)(li)相同(tong)，都是靠(kao)高(gao)壓電(dian)(dian)暈放(fang)電(dian)(dian)使得(de)粉塵(chen)(chen)(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)場力的(de)作用下到達集(ji)塵(chen)(chen)(chen)(chen)(chen)板(ban)/管。干(gan)式(shi)(shi)電(dian)(dian)收(shou)(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理(li)(li)含水很低的(de)干(gan)氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)主要處理(li)(li)含水較(jiao)高(gao)乃至飽和的(de)濕(shi)氣體(ti)。在對集(ji)塵(chen)(chen)(chen)(chen)(chen)板(ban)/管上(shang)(shang)(shang)捕(bu)集(ji)到的(de)粉塵(chen)(chen)(chen)(chen)(chen)清除方(fang)式(shi)(shi)上(shang)(shang)(shang)WESP與DESP有較(jiao)大(da)區(qu)別，干(gan)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)一般采用機(ji)械振(zhen)打或聲波清灰(hui)等方(fang)式(shi)(shi)清除電(dian)(dian)極上(shang)(shang)(shang)的(de)積灰(hui)，而(er)濕(shi)式(shi)(shi)電(dian)(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)則采用定期沖洗(xi)的(de)方(fang)式(shi)(shi)，使粉塵(chen)(chen)(chen)(chen)(chen)隨(sui)著沖刷液的(de)流動而(er)清除。