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)電除塵(chen)器主要有(you)兩種(zhong)結構形(xing)式(shi),一種(zhong)是使用(yong)(yong)耐(nai)腐蝕導(dao)電材料(liao)(可以為導(dao)電性能優良的(de)(de)的(de)(de)非金(jin)屬(shu)材料(liao)或具有(you)耐(nai)腐蝕特性的(de)(de)金(jin)屬(shu)材料(liao))做(zuo)集塵(chen)極,另一種(zhong)是用(yong)(yong)通過(guo)噴水或溢流(liu)水形(xing)成導(dao)電水膜,利用(yong)(yong)不(bu)導(dao)電的(de)(de)非金(jin)屬(shu)材料(liao)做(zuo)集塵(chen)極。
收(shou)塵原(yuan)理
濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)和與干式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)(de)(de)收(shou)(shou)塵(chen)(chen)(chen)原理(li)相同(tong),都是靠高壓(ya)電(dian)(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)(dian)使(shi)得粉(fen)(fen)塵(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian),荷(he)電(dian)(dian)(dian)(dian)(dian)后的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作(zuo)用下到達集塵(chen)(chen)(chen)板(ban)/管(guan)。干式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收(shou)(shou)塵(chen)(chen)(chen)器(qi)主要處理(li)含(han)水很(hen)低的(de)(de)(de)(de)干氣體,濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)主要處理(li)含(han)水較高乃至(zhi)飽和的(de)(de)(de)(de)濕氣體。在(zai)對集塵(chen)(chen)(chen)板(ban)/管(guan)上捕集到的(de)(de)(de)(de)粉(fen)(fen)塵(chen)(chen)(chen)清除(chu)方式(shi)(shi)上WESP與DESP有(you)較大區別,干式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)一般采(cai)用機械振(zhen)打或聲波(bo)清灰(hui)等方式(shi)(shi)清除(chu)電(dian)(dian)(dian)(dian)(dian)極上的(de)(de)(de)(de)積灰(hui),而濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)器(qi)則采(cai)用定期(qi)沖(chong)(chong)洗的(de)(de)(de)(de)方式(shi)(shi),使(shi)粉(fen)(fen)塵(chen)(chen)(chen)隨著沖(chong)(chong)刷液的(de)(de)(de)(de)流(liu)動而清除(chu)。