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(shi)電(dian)除塵(chen)器主要有兩種(zhong)結構(gou)形式(shi)，一種(zhong)是(shi)使(shi)用耐(nai)腐蝕導電(dian)材(cai)料（可以為導電(dian)性(xing)能優(you)良的(de)的(de)非(fei)金(jin)(jin)屬材(cai)料或具有耐(nai)腐蝕特性(xing)的(de)金(jin)(jin)屬材(cai)料）做集塵(chen)極，另(ling)一種(zhong)是(shi)用通過噴水(shui)或溢流水(shui)形成導電(dian)水(shui)膜，利用不導電(dian)的(de)非(fei)金(jin)(jin)屬材(cai)料做集塵(chen)極。

收塵(chen)原理

濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)器(qi)(qi)和與(yu)干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)器(qi)(qi)的(de)收(shou)塵(chen)原理相同，都是靠高(gao)壓電(dian)(dian)暈放電(dian)(dian)使得粉塵(chen)荷電(dian)(dian)，荷電(dian)(dian)后的(de)粉塵(chen)在電(dian)(dian)場力的(de)作用(yong)(yong)下到達(da)集塵(chen)板(ban)/管。干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)收(shou)塵(chen)器(qi)(qi)主(zhu)要處(chu)理含(han)水(shui)很低的(de)干(gan)氣(qi)體，濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)器(qi)(qi)主(zhu)要處(chu)理含(han)水(shui)較高(gao)乃至飽和的(de)濕(shi)氣(qi)體。在對集塵(chen)板(ban)/管上(shang)捕集到的(de)粉塵(chen)清(qing)(qing)除方(fang)式(shi)(shi)(shi)(shi)上(shang)WESP與(yu)DESP有較大區(qu)別(bie)，干(gan)式(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)器(qi)(qi)一般采用(yong)(yong)機(ji)械振打(da)或聲波清(qing)(qing)灰等(deng)方(fang)式(shi)(shi)(shi)(shi)清(qing)(qing)除電(dian)(dian)極上(shang)的(de)積灰，而(er)濕(shi)式(shi)(shi)(shi)(shi)電(dian)(dian)除塵(chen)器(qi)(qi)則(ze)采用(yong)(yong)定期(qi)沖洗的(de)方(fang)式(shi)(shi)(shi)(shi)，使粉塵(chen)隨著沖刷液的(de)流動而(er)清(qing)(qing)除。