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(shi)電(dian)(dian)除塵器主要有(you)兩種(zhong)結構形(xing)式(shi)，一種(zhong)是(shi)使用(yong)耐(nai)(nai)腐(fu)蝕導(dao)(dao)電(dian)(dian)材(cai)料(liao)(liao)（可以(yi)為(wei)導(dao)(dao)電(dian)(dian)性能(neng)優良的的非(fei)(fei)金(jin)屬(shu)材(cai)料(liao)(liao)或具有(you)耐(nai)(nai)腐(fu)蝕特性的金(jin)屬(shu)材(cai)料(liao)(liao)）做集塵極，另一種(zhong)是(shi)用(yong)通(tong)過噴水或溢(yi)流水形(xing)成(cheng)導(dao)(dao)電(dian)(dian)水膜，利用(yong)不導(dao)(dao)電(dian)(dian)的非(fei)(fei)金(jin)屬(shu)材(cai)料(liao)(liao)做集塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器和與干式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器的(de)(de)收(shou)塵(chen)(chen)原理(li)相同，都是靠高壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉塵(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)(de)粉塵(chen)(chen)在電(dian)(dian)場力的(de)(de)作用下到(dao)達集(ji)塵(chen)(chen)板/管(guan)。干式(shi)(shi)電(dian)(dian)收(shou)塵(chen)(chen)器主要處理(li)含水(shui)很低的(de)(de)干氣體(ti)，濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器主要處理(li)含水(shui)較高乃至飽和的(de)(de)濕(shi)氣體(ti)。在對集(ji)塵(chen)(chen)板/管(guan)上(shang)(shang)捕集(ji)到(dao)的(de)(de)粉塵(chen)(chen)清除(chu)(chu)方式(shi)(shi)上(shang)(shang)WESP與DESP有較大區別，干式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器一般采用機械振打或聲波(bo)清灰(hui)等方式(shi)(shi)清除(chu)(chu)電(dian)(dian)極(ji)上(shang)(shang)的(de)(de)積灰(hui)，而濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)器則采用定期沖洗(xi)的(de)(de)方式(shi)(shi)，使(shi)粉塵(chen)(chen)隨著沖刷液的(de)(de)流動而清除(chu)(chu)。