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(zhu)要有(you)(you)兩種結構形(xing)式(shi),一(yi)種是使(shi)用耐腐(fu)蝕導(dao)(dao)(dao)電(dian)材(cai)料(liao)(liao)(可以為導(dao)(dao)(dao)電(dian)性能優良(liang)的(de)(de)(de)(de)的(de)(de)(de)(de)非(fei)金屬(shu)(shu)材(cai)料(liao)(liao)或具(ju)有(you)(you)耐腐(fu)蝕特(te)性的(de)(de)(de)(de)金屬(shu)(shu)材(cai)料(liao)(liao))做(zuo)集塵(chen)極,另(ling)一(yi)種是用通過噴水或溢流(liu)水形(xing)成導(dao)(dao)(dao)電(dian)水膜,利用不導(dao)(dao)(dao)電(dian)的(de)(de)(de)(de)非(fei)金屬(shu)(shu)材(cai)料(liao)(liao)做(zuo)集塵(chen)極。
收塵原理(li)
濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)和與干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)的(de)(de)(de)收塵(chen)原理相同,都是靠高(gao)壓(ya)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)使得粉(fen)塵(chen)荷(he)電(dian)(dian)(dian),荷(he)電(dian)(dian)(dian)后的(de)(de)(de)粉(fen)塵(chen)在電(dian)(dian)(dian)場力的(de)(de)(de)作用(yong)下到達集塵(chen)板/管(guan)(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)收塵(chen)器(qi)主要(yao)處(chu)理含水很(hen)低的(de)(de)(de)干(gan)氣體,濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)主要(yao)處(chu)理含水較(jiao)高(gao)乃至飽和的(de)(de)(de)濕氣體。在對集塵(chen)板/管(guan)(guan)上捕集到的(de)(de)(de)粉(fen)塵(chen)清(qing)除(chu)(chu)方式(shi)(shi)上WESP與DESP有(you)較(jiao)大區別,干(gan)式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)一般(ban)采用(yong)機(ji)械振打或聲波清(qing)灰(hui)等方式(shi)(shi)清(qing)除(chu)(chu)電(dian)(dian)(dian)極上的(de)(de)(de)積灰(hui),而(er)(er)濕式(shi)(shi)電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)則采用(yong)定期沖洗的(de)(de)(de)方式(shi)(shi),使粉(fen)塵(chen)隨著沖刷(shua)液的(de)(de)(de)流動而(er)(er)清(qing)除(chu)(chu)。