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)(dian)除塵器主要有(you)兩種結構形(xing)式，一種是使用耐腐蝕導(dao)(dao)(dao)電(dian)(dian)材料（可以為導(dao)(dao)(dao)電(dian)(dian)性能優(you)良的(de)的(de)非金(jin)(jin)屬材料或具有(you)耐腐蝕特性的(de)金(jin)(jin)屬材料）做(zuo)集塵極，另一種是用通過噴水或溢(yi)流水形(xing)成(cheng)導(dao)(dao)(dao)電(dian)(dian)水膜(mo)，利用不導(dao)(dao)(dao)電(dian)(dian)的(de)非金(jin)(jin)屬材料做(zuo)集塵極。

收塵原理

濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)和與干式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)收塵(chen)(chen)(chen)原(yuan)理相同，都是靠(kao)高(gao)壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉塵(chen)(chen)(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉塵(chen)(chen)(chen)在電(dian)(dian)場力的(de)作用下(xia)到達集塵(chen)(chen)(chen)板/管。干式(shi)(shi)電(dian)(dian)收塵(chen)(chen)(chen)器(qi)主要處理含(han)水很低的(de)干氣體，濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)主要處理含(han)水較(jiao)(jiao)高(gao)乃(nai)至(zhi)飽和的(de)濕(shi)氣體。在對集塵(chen)(chen)(chen)板/管上(shang)捕集到的(de)粉塵(chen)(chen)(chen)清(qing)除(chu)(chu)方式(shi)(shi)上(shang)WESP與DESP有(you)較(jiao)(jiao)大區別，干式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)一般采用機械振打或聲波清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)(chu)電(dian)(dian)極上(shang)的(de)積灰(hui)，而(er)(er)濕(shi)式(shi)(shi)電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)則采用定期沖洗的(de)方式(shi)(shi)，使(shi)粉塵(chen)(chen)(chen)隨著沖刷液的(de)流動而(er)(er)清(qing)除(chu)(chu)。