XWD型臥式靜電除塵器是眾多除塵器當中的一種,臥式靜電除塵器是以靜電凈化法來收捕廢氣中的粉塵的設備,其主要是讓含塵氣體進人氣刺叭時,含塵氣體受到氣流分布板以及折流板的調整后,使氣流能較均勻地進人電場。
臥式靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)除塵(chen)器是以(yi)靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)凈化法來(lai)收捕廢(fei)氣中(zhong)(zhong)的(de)(de)(de)(de)粉(fen)塵(chen),它的(de)(de)(de)(de)凈化工作上要是依靠(kao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)和沉(chen)(chen)淀兩個系(xi)統來(lai)完成的(de)(de)(de)(de),當含塵(chen)氣體(ti)(ti)(ti)進人(ren)(ren)氣刺叭時,含塵(chen)氣體(ti)(ti)(ti)受(shou)到氣流分布(bu)板(ban)以(yi)及折(zhe)流板(ban)的(de)(de)(de)(de)調整后(hou)(hou),使氣流能較(jiao)均勻地進人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)。在(zai)(zai)橫斷(duan)面擴大的(de)(de)(de)(de)作用下(xia),氣流速(su)度迅速(su)降(jiang)低,其中(zhong)(zhong)有些較(jiao)重的(de)(de)(de)(de)塵(chen)粒(li)(li)便失去速(su)度而(er)沉(chen)(chen)降(jiang)下(xia)來(lai)。進人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)含塵(chen)氣體(ti)(ti)(ti)由(you)于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)通人(ren)(ren)高壓直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian),則(ze)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)附(fu)近產生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)現象,使氣體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)離(li)后(hou)(hou)的(de)(de)(de)(de)氣體(ti)(ti)(ti)中(zhong)(zhong)存在(zai)(zai)大量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi),這些電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)和離(li)子(zi)(zi)與進人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)粉(fen)塵(chen)結合(he)起來(lai),使塵(chen)粒(li)(li)帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)塵(chen)粒(li)(li)在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場(chang)力(li)的(de)(de)(de)(de)作用下(xia)趨向本(ben)設備陽極(ji)(ji)(正(zheng)極(ji)(ji)、本(ben)設備采用負高壓制(zhi))和陰極(ji)(ji)(負極(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)分別沉(chen)(chen)積在(zai)(zai)相應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上,通過設備陰陽極(ji)(ji)振打系(xi)統的(de)(de)(de)(de)振打,使沉(chen)(chen)積在(zai)(zai)陰陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上的(de)(de)(de)(de)粉(fen)塵(chen)振落,進人(ren)(ren)集灰斗 通過排(pai)灰裝(zhuang)置放出,回(hui)收有物(wu)料,被(bei))凈化的(de)(de)(de)(de)氣體(ti)(ti)(ti)排(pai)入大氣。
工作原理(li)
靜電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)工(gong)作原理是利用高壓(ya)電(dian)(dian)(dian)(dian)(dian)場使煙(yan)氣(qi)發生電(dian)(dian)(dian)(dian)(dian)離(li),氣(qi)流中的(de)粉塵(chen)(chen)(chen)(chen)荷(he)電(dian)(dian)(dian)(dian)(dian)在(zai)電(dian)(dian)(dian)(dian)(dian)場作用下與氣(qi)流分離(li)。負極由不同斷面形(xing)狀的(de)金屬(shu)導線制(zhi)成,叫放電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)極。正極由不同幾何(he)形(xing)狀的(de)金屬(shu)板制(zhi)成,叫集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極。靜電(dian)(dian)(dian)(dian)(dian)除(chu)塵(chen)(chen)(chen)(chen)器的(de)性能受粉塵(chen)(chen)(chen)(chen)性質、設備構(gou)造和(he)煙(yan)氣(qi)流速等三個因素的(de)影響。粉塵(chen)(chen)(chen)(chen)的(de)比(bi)電(dian)(dian)(dian)(dian)(dian)阻是評價導電(dian)(dian)(dian)(dian)(dian)性的(de)指標,它對(dui)除(chu)塵(chen)(chen)(chen)(chen)效(xiao)率(lv)有(you)直接的(de)影響。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過(guo)低,塵(chen)(chen)(chen)(chen)粒(li)難以保持(chi)在(zai)集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極上(shang),致使其重返氣(qi)流。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過(guo)高,到達集(ji)(ji)塵(chen)(chen)(chen)(chen)電(dian)(dian)(dian)(dian)(dian)極的(de)塵(chen)(chen)(chen)(chen)粒(li)電(dian)(dian)(dian)(dian)(dian)荷(he)不易放出,在(zai)塵(chen)(chen)(chen)(chen)層之間形(xing)成電(dian)(dian)(dian)(dian)(dian)壓(ya)梯(ti)度會產生局部擊穿和(he)放電(dian)(dian)(dian)(dian)(dian)現象。這些情況都會造成除(chu)塵(chen)(chen)(chen)(chen)效(xiao)率(lv)下降。
電(dian)除(chu)塵器的(de)基本原(yuan)理是利用電(dian)力(li)捕(bu)集煙氣中的(de)粉(fen)塵,主要包括以下四(si)個相互有關(guan)的(de)物(wu)理過程: (1) 氣體(ti)的(de)電(dian)離。(2) 粉(fen)塵的(de)荷(he)(he)電(dian)。(3) 荷(he)(he)電(dian)粉(fen)塵向電(dian)極移動。(4) 荷(he)(he)電(dian)粉(fen)塵的(de)捕(bu)集。