濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)器(qi)和與(yu)干(gan)式(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)器(qi)的(de)(de)(de)收塵(chen)原(yuan)理相同，都是靠高壓電(dian)(dian)暈放電(dian)(dian)使(shi)得粉(fen)塵(chen)荷(he)(he)電(dian)(dian)，荷(he)(he)電(dian)(dian)后的(de)(de)(de)粉(fen)塵(chen)在(zai)電(dian)(dian)場力的(de)(de)(de)作用(yong)(yong)(yong)下到達到集塵(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)電(dian)(dian)收塵(chen)器(qi)主要(yao)處理含水很(hen)低的(de)(de)(de)干(gan)氣體(ti)，濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)器(qi)主要(yao)處理含水較高乃至飽和的(de)(de)(de)濕(shi)(shi)氣體(ti)。在(zai)對集塵(chen)板(ban)/管上(shang)捕集到的(de)(de)(de)粉(fen)塵(chen)清除(chu)方式(shi)(shi)(shi)上(shang)WESP與(yu)DESP有較大區別(bie)，干(gan)式(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)器(qi)一般(ban)采用(yong)(yong)(yong)機(ji)械振打或聲波清灰等方式(shi)(shi)(shi)清除(chu)電(dian)(dian)極上(shang)的(de)(de)(de)積(ji)灰，而濕(shi)(shi)式(shi)(shi)(shi)電(dian)(dian)除(chu)塵(chen)器(qi)則采用(yong)(yong)(yong)定期沖洗的(de)(de)(de)方式(shi)(shi)(shi)，使(shi)粉(fen)塵(chen)隨著沖刷液的(de)(de)(de)流動而清除(chu)。

WESP具有除塵效率高、壓力損失小(xiao)、操做(zuo)簡單(dan)、能耗小(xiao)、無(wu)運動部件、無(wu)二次揚塵、維護(hu)費用低、生產(chan)停工期短、可(ke)(ke)工作(zuo)于(yu)煙(yan)氣露(lu)點溫度以下(xia)、由于(yu)結構緊湊而可(ke)(ke)與其它(ta)煙(yan)氣治(zhi)理設備相互結合、設計形式多樣化等優(you)點。

濕式電(dian)除(chu)塵(chen)(chen)(chen)(chen)器采用(yong)(yong)液體沖刷集塵(chen)(chen)(chen)(chen)極表面來進行清(qing)灰(hui)，可有效收(shou)集微細顆粒物(wu)(PM2.5粉塵(chen)(chen)(chen)(chen)、SO3酸霧、氣(qi)溶膠)、重金屬(shu)(Hg、As、Se、Pb、Cr)、有機污(wu)染物(wu)(多環芳烴、二惡(e)英)等(deng)。使(shi)(shi)用(yong)(yong)濕式電(dian)除(chu)塵(chen)(chen)(chen)(chen)器后含濕煙氣(qi)中的煙塵(chen)(chen)(chen)(chen)排放(fang)可達(da)10mg/m甚至5mg/m以下，收(shou)塵(chen)(chen)(chen)(chen)性能與粉塵(chen)(chen)(chen)(chen)特性無關，適用(yong)(yong)于含濕煙氣(qi)的處理，尤(you)其(qi)適用(yong)(yong)在(zai)電(dian)廠、鋼廠濕法(fa)脫硫之后含塵(chen)(chen)(chen)(chen)煙氣(qi)的處理上，后但(dan)設備投(tou)資(zi)(zi)費用(yong)(yong)較高，且需與其(qi)它除(chu)塵(chen)(chen)(chen)(chen)設備配套(tao)使(shi)(shi)用(yong)(yong)，其(qi)投(tou)資(zi)(zi)技術經濟(ji)性和運行成本要(yao)從(cong)整體進行評價。