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)除塵(chen)器是(shi)(shi)以靜(jing)電(dian)(dian)(dian)(dian)凈化(hua)法來收(shou)捕廢氣(qi)(qi)(qi)中(zhong)的(de)(de)(de)(de)(de)粉(fen)塵(chen),它(ta)的(de)(de)(de)(de)(de)凈化(hua)工作上要是(shi)(shi)依(yi)靠電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)和(he)沉(chen)淀兩個系(xi)統來完成(cheng)的(de)(de)(de)(de)(de),當含塵(chen)氣(qi)(qi)(qi)體進(jin)人氣(qi)(qi)(qi)刺(ci)叭時,含塵(chen)氣(qi)(qi)(qi)體受到氣(qi)(qi)(qi)流(liu)(liu)分布板以及折(zhe)流(liu)(liu)板的(de)(de)(de)(de)(de)調整后,使(shi)氣(qi)(qi)(qi)流(liu)(liu)能較均勻地(di)進(jin)人電(dian)(dian)(dian)(dian)場(chang)。在(zai)(zai)橫斷面擴(kuo)大的(de)(de)(de)(de)(de)作用下(xia),氣(qi)(qi)(qi)流(liu)(liu)速度迅速降(jiang)低,其中(zhong)有(you)(you)些較重的(de)(de)(de)(de)(de)塵(chen)粒便失(shi)去(qu)速度而沉(chen)降(jiang)下(xia)來。進(jin)人電(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)含塵(chen)氣(qi)(qi)(qi)體由(you)于電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)通(tong)(tong)人高(gao)壓直流(liu)(liu)電(dian)(dian)(dian)(dian),則(ze)在(zai)(zai)電(dian)(dian)(dian)(dian)暈(yun)極(ji)(ji)(ji)附近產生電(dian)(dian)(dian)(dian)暈(yun)現象(xiang),使(shi)氣(qi)(qi)(qi)體電(dian)(dian)(dian)(dian)離(li)(li),電(dian)(dian)(dian)(dian)離(li)(li)后的(de)(de)(de)(de)(de)氣(qi)(qi)(qi)體中(zhong)存在(zai)(zai)大量(liang)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子(zi)和(he)離(li)(li)子(zi),這(zhe)些電(dian)(dian)(dian)(dian)子(zi)和(he)離(li)(li)子(zi)與進(jin)人電(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)(de)粉(fen)塵(chen)結合起來,使(shi)塵(chen)粒帶(dai)電(dian)(dian)(dian)(dian),帶(dai)電(dian)(dian)(dian)(dian)塵(chen)粒在(zai)(zai)電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)(de)作用下(xia)趨(qu)向本(ben)設(she)備(bei)陽(yang)極(ji)(ji)(ji)(正極(ji)(ji)(ji)、本(ben)設(she)備(bei)采用負(fu)高(gao)壓制)和(he)陰極(ji)(ji)(ji)(負(fu)極(ji)(ji)(ji)) , 釋放出電(dian)(dian)(dian)(dian)子(zi)分別沉(chen)積在(zai)(zai)相應的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上,通(tong)(tong)過(guo)設(she)備(bei)陰陽(yang)極(ji)(ji)(ji)振打系(xi)統的(de)(de)(de)(de)(de)振打,使(shi)沉(chen)積在(zai)(zai)陰陽(yang)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上的(de)(de)(de)(de)(de)粉(fen)塵(chen)振落,進(jin)人集灰斗(dou) 通(tong)(tong)過(guo)排灰裝(zhuang)置放出,回收(shou)有(you)(you)物料,被)凈化(hua)的(de)(de)(de)(de)(de)氣(qi)(qi)(qi)體排入(ru)大氣(qi)(qi)(qi)。
工(gong)作原理
靜(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)(de)工作原理是利用(yong)(yong)高(gao)壓電(dian)(dian)(dian)(dian)場使煙氣(qi)(qi)(qi)發生電(dian)(dian)(dian)(dian)離,氣(qi)(qi)(qi)流(liu)(liu)中(zhong)的(de)(de)粉塵(chen)(chen)荷電(dian)(dian)(dian)(dian)在電(dian)(dian)(dian)(dian)場作用(yong)(yong)下與(yu)氣(qi)(qi)(qi)流(liu)(liu)分(fen)離。負極(ji)(ji)(ji)由(you)不同(tong)斷面形(xing)(xing)狀的(de)(de)金(jin)屬導(dao)線制成,叫放(fang)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。正極(ji)(ji)(ji)由(you)不同(tong)幾何形(xing)(xing)狀的(de)(de)金(jin)屬板制成,叫集(ji)塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)。靜(jing)電(dian)(dian)(dian)(dian)除塵(chen)(chen)器的(de)(de)性能(neng)受(shou)粉塵(chen)(chen)性質(zhi)、設(she)備構造和(he)煙氣(qi)(qi)(qi)流(liu)(liu)速等三個因(yin)素的(de)(de)影(ying)響。粉塵(chen)(chen)的(de)(de)比(bi)電(dian)(dian)(dian)(dian)阻(zu)是評(ping)價導(dao)電(dian)(dian)(dian)(dian)性的(de)(de)指標,它對除塵(chen)(chen)效(xiao)率有直接(jie)的(de)(de)影(ying)響。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過低(di),塵(chen)(chen)粒(li)(li)難(nan)以保持在集(ji)塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)上(shang),致使其重返氣(qi)(qi)(qi)流(liu)(liu)。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過高(gao),到達(da)集(ji)塵(chen)(chen)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)的(de)(de)塵(chen)(chen)粒(li)(li)電(dian)(dian)(dian)(dian)荷不易放(fang)出,在塵(chen)(chen)層之間形(xing)(xing)成電(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放(fang)電(dian)(dian)(dian)(dian)現象。這些情(qing)況(kuang)都會造成除塵(chen)(chen)效(xiao)率下降。
電(dian)除塵(chen)(chen)器的基本(ben)原理(li)是利用電(dian)力捕集(ji)煙氣中的粉(fen)塵(chen)(chen),主要包括以下(xia)四個相(xiang)互有關的物理(li)過(guo)程(cheng): (1) 氣體的電(dian)離(li)。(2) 粉(fen)塵(chen)(chen)的荷(he)電(dian)。(3) 荷(he)電(dian)粉(fen)塵(chen)(chen)向(xiang)電(dian)極(ji)移動。(4) 荷(he)電(dian)粉(fen)塵(chen)(chen)的捕集(ji)。