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、PM_2.5等有害物質，是治理大氣粉塵污染的理想設備。

    濕式(shi)電(dian)除塵器(qi)通常簡稱WESP，與干式(shi)電(dian)除塵器(qi)的(de)除塵基本原理相同，要(yao)經歷荷電(dian)、收(shou)集(ji)和清灰三(san)個階段。

    濕式電(dian)除(chu)(chu)塵(chen)器(qi)的(de)(de)吸塵(chen)方法與電(dian)除(chu)(chu)塵(chen)器(qi)大致相同，濕式電(dian)除(chu)(chu)塵(chen)器(qi)的(de)(de)工作原理(li)和干式的(de)(de)類似，都是高壓電(dian)暈(yun)放電(dian)使粉塵(chen)或(huo)水霧荷電(dian)，荷電(dian)的(de)(de)粒子在電(dian)場力(li)的(de)(de)作用下(xia)(xia)到達集塵(chen)板。如下(xia)(xia)圖(tu)：

圖為濕式電除塵(chen)(chen)器的吸塵(chen)(chen)原(yuan)理

   含有(you)粉塵(chen)(chen)顆粒(li)的(de)氣(qi)體，在接有(you)高壓直(zhi)流電(dian)(dian)(dian)(dian)源的(de)陰極線(xian)(又稱(cheng)電(dian)(dian)(dian)(dian)暈極)和接地(di)的(de)陽(yang)極板(ban)之間所(suo)形(xing)成的(de)高壓電(dian)(dian)(dian)(dian)場通過時，由(you)于陰極發生電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)、氣(qi)體被電(dian)(dian)(dian)(dian)離，此(ci)時，帶負電(dian)(dian)(dian)(dian)的(de)氣(qi)體離子，在電(dian)(dian)(dian)(dian)場力的(de)作用下，向(xiang)陽(yang)板(ban)運動，在運動中與(yu)粉塵(chen)(chen)顆粒(li)相碰(peng)，則使(shi)塵(chen)(chen)粒(li)荷以負電(dian)(dian)(dian)(dian)，荷電(dian)(dian)(dian)(dian)后的(de)塵(chen)(chen)粒(li)在電(dian)(dian)(dian)(dian)場力的(de)作用下，亦(yi)向(xiang)陽(yang)極運動，到達陽(yang)極后，放出所(suo)帶的(de)電(dian)(dian)(dian)(dian)子，塵(chen)(chen)粒(li)則沉積于陽(yang)極板(ban)上(shang)，采用沖(chong)刷(shua)液(ye)沖(chong)洗電(dian)(dian)(dian)(dian)極，將收塵(chen)(chen)板(ban)上(shang)捕獲(huo)的(de)粉塵(chen)(chen)沖(chong)刷(shua)到灰(hui)斗中隨之排出。