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(chen)器(qi)主要有(you)兩種結(jie)構形(xing)式，一種是使用耐腐(fu)蝕導(dao)(dao)電(dian)(dian)(dian)材料（可以為(wei)導(dao)(dao)電(dian)(dian)(dian)性能優良的的非(fei)金(jin)屬材料或(huo)具有(you)耐腐(fu)蝕特性的金(jin)屬材料）做集塵(chen)極，另(ling)一種是用通過(guo)噴水(shui)(shui)或(huo)溢流水(shui)(shui)形(xing)成(cheng)導(dao)(dao)電(dian)(dian)(dian)水(shui)(shui)膜(mo)，利用不導(dao)(dao)電(dian)(dian)(dian)的非(fei)金(jin)屬材料做集塵(chen)極。

收(shou)塵原理

濕(shi)式(shi)(shi)(shi)電(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)和與(yu)(yu)干(gan)式(shi)(shi)(shi)電(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)的(de)收塵(chen)(chen)(chen)(chen)(chen)原理相同，都是(shi)靠高(gao)(gao)壓電(dian)暈放(fang)電(dian)使得(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)荷電(dian)，荷電(dian)后(hou)的(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)在(zai)電(dian)場力的(de)作用(yong)下(xia)到達集塵(chen)(chen)(chen)(chen)(chen)板/管。干(gan)式(shi)(shi)(shi)電(dian)收塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)(zhu)要(yao)處(chu)理含(han)水很低的(de)干(gan)氣體，濕(shi)式(shi)(shi)(shi)電(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主(zhu)(zhu)要(yao)處(chu)理含(han)水較高(gao)(gao)乃至飽和的(de)濕(shi)氣體。在(zai)對集塵(chen)(chen)(chen)(chen)(chen)板/管上(shang)(shang)捕集到的(de)粉(fen)塵(chen)(chen)(chen)(chen)(chen)清(qing)除方(fang)式(shi)(shi)(shi)上(shang)(shang)WESP與(yu)(yu)DESP有(you)較大區別，干(gan)式(shi)(shi)(shi)電(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)一(yi)般采(cai)用(yong)機械振打或(huo)聲波清(qing)灰(hui)等方(fang)式(shi)(shi)(shi)清(qing)除電(dian)極上(shang)(shang)的(de)積灰(hui)，而(er)(er)濕(shi)式(shi)(shi)(shi)電(dian)除塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)則(ze)采(cai)用(yong)定期沖(chong)洗的(de)方(fang)式(shi)(shi)(shi)，使粉(fen)塵(chen)(chen)(chen)(chen)(chen)隨著沖(chong)刷(shua)液(ye)的(de)流動而(er)(er)清(qing)除。