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)(dian)(dian)除塵器(qi)主要有兩種結構(gou)形式,一種是使用耐腐蝕(shi)導電(dian)(dian)(dian)材料(liao)(可(ke)以為導電(dian)(dian)(dian)性能優良的的非金(jin)屬材料(liao)或(huo)具有耐腐蝕(shi)特性的金(jin)屬材料(liao))做集(ji)塵極(ji),另一種是用通過(guo)噴水(shui)或(huo)溢流水(shui)形成導電(dian)(dian)(dian)水(shui)膜,利用不(bu)導電(dian)(dian)(dian)的非金(jin)屬材料(liao)做集(ji)塵極(ji)。
收(shou)塵(chen)原理
濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)和與(yu)(yu)干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)的(de)收塵(chen)(chen)(chen)(chen)(chen)(chen)原理相同,都是靠高(gao)壓電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)使得粉塵(chen)(chen)(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian),荷(he)電(dian)(dian)(dian)(dian)(dian)后的(de)粉塵(chen)(chen)(chen)(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場力(li)的(de)作用(yong)(yong)下到達集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)板/管(guan)。干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)收塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理含(han)水很低的(de)干(gan)氣(qi)體,濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)主(zhu)要處理含(han)水較高(gao)乃(nai)至飽(bao)和的(de)濕氣(qi)體。在(zai)對集(ji)塵(chen)(chen)(chen)(chen)(chen)(chen)板/管(guan)上捕集(ji)到的(de)粉塵(chen)(chen)(chen)(chen)(chen)(chen)清除(chu)(chu)方式(shi)(shi)上WESP與(yu)(yu)DESP有較大區別,干(gan)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)一般采(cai)用(yong)(yong)機械振打或聲(sheng)波清灰(hui)等(deng)方式(shi)(shi)清除(chu)(chu)電(dian)(dian)(dian)(dian)(dian)極上的(de)積(ji)灰(hui),而濕式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)(chen)(chen)(chen)器(qi)(qi)(qi)則采(cai)用(yong)(yong)定(ding)期沖(chong)洗(xi)的(de)方式(shi)(shi),使粉塵(chen)(chen)(chen)(chen)(chen)(chen)隨著(zhu)沖(chong)刷(shua)液的(de)流動(dong)而清除(chu)(chu)。