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)除塵(chen)器是(shi)以靜(jing)電(dian)(dian)(dian)(dian)(dian)凈(jing)化法(fa)來收捕廢氣(qi)(qi)中的(de)(de)(de)(de)(de)粉(fen)塵(chen)，它的(de)(de)(de)(de)(de)凈(jing)化工作(zuo)(zuo)上(shang)要是(shi)依靠電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)和沉(chen)淀兩個系統來完成的(de)(de)(de)(de)(de)，當含塵(chen)氣(qi)(qi)體(ti)(ti)進(jin)(jin)(jin)人(ren)(ren)氣(qi)(qi)刺叭(ba)時，含塵(chen)氣(qi)(qi)體(ti)(ti)受(shou)到氣(qi)(qi)流(liu)分(fen)布(bu)板以及(ji)折流(liu)板的(de)(de)(de)(de)(de)調整后(hou)(hou)，使氣(qi)(qi)流(liu)能較(jiao)均勻地進(jin)(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)。在(zai)(zai)橫斷面擴大(da)的(de)(de)(de)(de)(de)作(zuo)(zuo)用下(xia)，氣(qi)(qi)流(liu)速(su)度(du)(du)迅速(su)降(jiang)(jiang)低，其中有些(xie)較(jiao)重的(de)(de)(de)(de)(de)塵(chen)粒便失去速(su)度(du)(du)而沉(chen)降(jiang)(jiang)下(xia)來。進(jin)(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)(de)含塵(chen)氣(qi)(qi)體(ti)(ti)由于電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)通人(ren)(ren)高(gao)壓直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)，則在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)極(ji)(ji)附近產生電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)現象(xiang)，使氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離，電(dian)(dian)(dian)(dian)(dian)離后(hou)(hou)的(de)(de)(de)(de)(de)氣(qi)(qi)體(ti)(ti)中存在(zai)(zai)大(da)量的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)和離子(zi)，這些(xie)電(dian)(dian)(dian)(dian)(dian)子(zi)和離子(zi)與進(jin)(jin)(jin)人(ren)(ren)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)(de)(de)粉(fen)塵(chen)結合起來，使塵(chen)粒帶電(dian)(dian)(dian)(dian)(dian)，帶電(dian)(dian)(dian)(dian)(dian)塵(chen)粒在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)場(chang)(chang)力(li)的(de)(de)(de)(de)(de)作(zuo)(zuo)用下(xia)趨向本設(she)備(bei)陽(yang)極(ji)(ji)(正極(ji)(ji)、本設(she)備(bei)采用負(fu)高(gao)壓制)和陰極(ji)(ji)(負(fu)極(ji)(ji)) ， 釋放出電(dian)(dian)(dian)(dian)(dian)子(zi)分(fen)別沉(chen)積在(zai)(zai)相(xiang)應的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上(shang)，通過(guo)設(she)備(bei)陰陽(yang)極(ji)(ji)振打(da)系統的(de)(de)(de)(de)(de)振打(da)，使沉(chen)積在(zai)(zai)陰陽(yang)電(dian)(dian)(dian)(dian)(dian)極(ji)(ji)上(shang)的(de)(de)(de)(de)(de)粉(fen)塵(chen)振落(luo)，進(jin)(jin)(jin)人(ren)(ren)集灰斗 通過(guo)排(pai)灰裝置放出，回收有物料，被(bei))凈(jing)化的(de)(de)(de)(de)(de)氣(qi)(qi)體(ti)(ti)排(pai)入大(da)氣(qi)(qi)。

工作原理

靜電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)工作原理是利用高壓電(dian)(dian)場(chang)使煙(yan)(yan)氣(qi)發(fa)生電(dian)(dian)離，氣(qi)流中(zhong)的(de)(de)粉(fen)塵(chen)(chen)(chen)荷電(dian)(dian)在電(dian)(dian)場(chang)作用下與氣(qi)流分離。負極(ji)由不同(tong)斷面(mian)形狀(zhuang)的(de)(de)金屬導線制成(cheng)(cheng)，叫放電(dian)(dian)電(dian)(dian)極(ji)。正(zheng)極(ji)由不同(tong)幾何形狀(zhuang)的(de)(de)金屬板制成(cheng)(cheng)，叫集塵(chen)(chen)(chen)電(dian)(dian)極(ji)。靜電(dian)(dian)除(chu)(chu)塵(chen)(chen)(chen)器(qi)的(de)(de)性(xing)能受粉(fen)塵(chen)(chen)(chen)性(xing)質、設備構造和煙(yan)(yan)氣(qi)流速等三個因(yin)素的(de)(de)影響。粉(fen)塵(chen)(chen)(chen)的(de)(de)比(bi)電(dian)(dian)阻(zu)是評價導電(dian)(dian)性(xing)的(de)(de)指標，它對除(chu)(chu)塵(chen)(chen)(chen)效率有直接(jie)的(de)(de)影響。比(bi)電(dian)(dian)阻(zu)過(guo)低，塵(chen)(chen)(chen)粒難以保持在集塵(chen)(chen)(chen)電(dian)(dian)極(ji)上，致使其重返氣(qi)流。比(bi)電(dian)(dian)阻(zu)過(guo)高，到達(da)集塵(chen)(chen)(chen)電(dian)(dian)極(ji)的(de)(de)塵(chen)(chen)(chen)粒電(dian)(dian)荷不易放出，在塵(chen)(chen)(chen)層之(zhi)間形成(cheng)(cheng)電(dian)(dian)壓梯度(du)會產生局部(bu)擊(ji)穿和放電(dian)(dian)現象。這些情況都會造成(cheng)(cheng)除(chu)(chu)塵(chen)(chen)(chen)效率下降。

電(dian)除塵器的基本(ben)原理(li)是利用電(dian)力捕(bu)集煙氣中的粉(fen)(fen)塵，主要包括以下四個相(xiang)互有關的物理(li)過程: (1) 氣體(ti)的電(dian)離。(2) 粉(fen)(fen)塵的荷電(dian)。(3) 荷電(dian)粉(fen)(fen)塵向電(dian)極移動。(4) 荷電(dian)粉(fen)(fen)塵的捕(bu)集。