濕(shi)(shi)式電(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)采用(yong)液體(ti)沖刷集塵(chen)(chen)(chen)(chen) 表(biao)面來進(jin)行清灰(hui)，可 收集微細顆(ke)粒物(wu)(wu)(PM2.5粉塵(chen)(chen)(chen)(chen)、SO3酸霧、氣溶膠)、污染物(wu)(wu)(多(duo)環芳烴、二惡英(ying))等。使用(yong)濕(shi)(shi)式電(dian)除(chu)塵(chen)(chen)(chen)(chen)器(qi)后(hou)含濕(shi)(shi)煙氣中的煙塵(chen)(chen)(chen)(chen)排放可達10mg/m甚(shen)至(zhi)5mg/m以下，收塵(chen)(chen)(chen)(chen)性(xing)能與粉塵(chen)(chen)(chen)(chen)特性(xing)無關，適用(yong)于含濕(shi)(shi)煙氣的處理，尤其適用(yong)在電(dian)廠、鋼廠濕(shi)(shi)法脫硫之后(hou)含塵(chen)(chen)(chen)(chen)煙氣的處理上。
濕式(shi)(shi)靜電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)收塵(chen)(chen)原理：濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)和與(yu)(yu)干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)的(de)(de)收塵(chen)(chen)原理相同，都是靠高壓電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉塵(chen)(chen)荷電(dian)(dian)(dian)，荷電(dian)(dian)(dian)后的(de)(de)粉塵(chen)(chen)在電(dian)(dian)(dian)場力(li)的(de)(de)作(zuo)用(yong)下到(dao)(dao)達到(dao)(dao)集塵(chen)(chen)板板。但在對集塵(chen)(chen)板上捕(bu)集到(dao)(dao)的(de)(de)粉塵(chen)(chen) 方式(shi)(shi)上WESP與(yu)(yu)DESP有較大(da)區別，干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)一般采(cai)用(yong)機械振打或聲波清灰等方式(shi)(shi) 電(dian)(dian)(dian) 上的(de)(de)積灰，而(er)濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)則(ze)采(cai)用(yong)沖(chong)(chong)刷(shua)液沖(chong)(chong)洗(xi)電(dian)(dian)(dian) ，在 板上形(xing)成連續的(de)(de)液膜(mo)，使粉塵(chen)(chen)隨著(zhu)沖(chong)(chong)刷(shua)液的(de)(de)流動而(er) 。
濕式電除塵設備具有(you)除塵、壓(ya)力(li)損失小、操做(zuo)簡單、能耗小、無運(yun)動部件、無二次揚塵、維(wei)護費用低、生(sheng)產停工(gong)期(qi)短、可(ke)工(gong)作于煙(yan)氣露點溫度以下、由于結構緊湊而可(ke)與其它煙(yan)氣治理(li)設備相互結合、設計形式多樣化等優點。
濕(shi)電(dian)除塵(chen)器(qi)(qi)的結(jie)構(gou)：濕(shi)式(shi)電(dian)除塵(chen)器(qi)(qi)還可分為(wei)橫流式(shi)(臥式(shi))和豎(shu)(shu)流式(shi)(立式(shi))，橫流式(shi)多為(wei)板式(shi)結(jie)構(gou)，氣(qi)體流向(xiang)為(wei)水平方(fang)(fang)向(xiang)進(jin)出，結(jie)構(gou)類似干式(shi)電(dian)除塵(chen)器(qi)(qi);豎(shu)(shu)流式(shi)多為(wei)管式(shi)機構(gou)，氣(qi)體流向(xiang)為(wei)垂直方(fang)(fang)向(xiang)進(jin)出。
因無(wu)(wu)振打裝置，運(yun)行也(ye)較(jiao)。采用噴水(shui)或(huo)溢流水(shui)等方式使(shi)集(ji)塵(chen) 表面形成導(dao)電(dian)膜的(de)裝置存在著腐蝕、污(wu)(wu)泥和污(wu)(wu)水(shui)的(de)處理問題，僅在氣體含塵(chen)濃度較(jiao)低;要(yao)求含塵(chen)效(xiao)率(lv)較(jiao)高(gao)時才(cai)采用;使(shi)用蝕導(dao)電(dian)材料做集(ji)塵(chen) 的(de)濕式電(dian)除(chu)塵(chen)器不需要(yao)長期噴水(shui)或(huo)溢流水(shui)，只根據系統(tong)運(yun)行狀(zhuang)況定期進行沖洗，僅消耗 少量的(de)水(shui)，該部分水(shui)可(ke)回收(shou)循(xun)環利(li)用，收(shou)塵(chen)系統(tong)基本無(wu)(wu)二(er)次(ci)污(wu)(wu)染(ran)。
