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)除(chu)塵(chen)器主要有(you)兩種(zhong)結構(gou)形(xing)式,一種(zhong)是使用耐(nai)腐(fu)蝕導(dao)(dao)電(dian)材料(liao)(可以為導(dao)(dao)電(dian)性能優良(liang)的的非金(jin)屬材料(liao)或具有(you)耐(nai)腐(fu)蝕特性的金(jin)屬材料(liao))做集(ji)(ji)塵(chen)極,另一種(zhong)是用通過噴水或溢流水形(xing)成導(dao)(dao)電(dian)水膜,利用不(bu)導(dao)(dao)電(dian)的非金(jin)屬材料(liao)做集(ji)(ji)塵(chen)極。
收塵(chen)原(yuan)理
濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)和與(yu)干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)的(de)(de)(de)收(shou)塵(chen)(chen)(chen)(chen)(chen)原(yuan)理(li)相同,都是靠高壓電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian),荷(he)電(dian)(dian)(dian)后的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)在電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)下到達集塵(chen)(chen)(chen)(chen)(chen)板(ban)(ban)/管(guan)。干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)收(shou)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主要處理(li)含水(shui)(shui)很低的(de)(de)(de)干(gan)(gan)氣(qi)體(ti),濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)主要處理(li)含水(shui)(shui)較高乃至飽和的(de)(de)(de)濕(shi)氣(qi)體(ti)。在對集塵(chen)(chen)(chen)(chen)(chen)板(ban)(ban)/管(guan)上捕集到的(de)(de)(de)粉塵(chen)(chen)(chen)(chen)(chen)清(qing)(qing)除(chu)(chu)方(fang)(fang)式(shi)(shi)上WESP與(yu)DESP有(you)較大區(qu)別,干(gan)(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)一般采用(yong)機(ji)械振打或聲波清(qing)(qing)灰等方(fang)(fang)式(shi)(shi)清(qing)(qing)除(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)(de)積灰,而(er)濕(shi)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)器(qi)(qi)則(ze)采用(yong)定期沖洗(xi)的(de)(de)(de)方(fang)(fang)式(shi)(shi),使粉塵(chen)(chen)(chen)(chen)(chen)隨著沖刷液(ye)的(de)(de)(de)流(liu)動而(er)清(qing)(qing)除(chu)(chu)。