牡丹江靜電除塵器廠家

靜電除塵器的工(gong)作原理是利用(yong)高壓電場(chang)使煙氣(qi)(qi)發生電離(li)，氣(qi)(qi)流(liu)(liu)中的粉塵荷電在電場(chang)作用(yong)下與(yu)氣(qi)(qi)流(liu)(liu)分離(li)。負(fu)極由不同(tong)斷面形狀(zhuang)的金屬(shu)導線(xian)制成，叫放電電極。

正極由不同幾何形狀的金屬板制成，叫集塵電極。靜電除塵器廠家的性能受(shou)粉塵(chen)性質、設備構造和(he)煙氣流(liu)(liu)速等三個因素的影(ying)響。粉塵(chen)的比(bi)(bi)電(dian)阻(zu)是評價導(dao)電(dian)性的指標，它對除塵(chen)效率有直接的影(ying)響。比(bi)(bi)電(dian)阻(zu)過(guo)低(di)，塵(chen)粒難以保持在集(ji)塵(chen)電(dian)極(ji)上(shang)，致使其重返氣流(liu)(liu)。比(bi)(bi)電(dian)阻(zu)過(guo)高，到達集(ji)塵(chen)電(dian)極(ji)的塵(chen)粒電(dian)荷不易放出(chu)，在塵(chen)層之間形(xing)成(cheng)電(dian)壓梯度會(hui)產生局部(bu)擊穿(chuan)和(he)放電(dian)現象。這些(xie)情況都會(hui)造成(cheng)除塵(chen)效率下降。

簡介

靜電除塵器的電源由控制箱、升壓變壓器和整流器組成。電源輸出的電壓高低對除塵效率也有很大影響。因此，靜電除塵器運行電壓需保持40一(yi)75kV乃至100kV以上。

工作原理

電除塵器的(de)(de)基(ji)本原理(li)是利用電力捕(bu)集煙氣(qi)中的(de)(de)粉(fen)塵，主要包括(kuo)以下四個相(xiang)互有關的(de)(de)物(wu)理(li)過程：（1）氣(qi)體的(de)(de)電離。（2）粉(fen)塵的(de)(de)荷電。（3）荷電粉(fen)塵向電極(ji)移動。（4）荷電粉(fen)塵的(de)(de)捕(bu)集。

荷(he)電(dian)(dian)(dian)(dian)(dian)粉塵(chen)的(de)(de)捕(bu)集過(guo)程：在(zai)兩個(ge)曲率半(ban)徑相差較大的(de)(de)金屬(shu)陽(yang)(yang)極(ji)和陰極(ji)上，通過(guo)高壓直(zhi)流電(dian)(dian)(dian)(dian)(dian)，維(wei)持一(yi)個(ge)足(zu)以(yi)使(shi)氣體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離(li)(li)(li)(li)的(de)(de)電(dian)(dian)(dian)(dian)(dian)場，氣體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離(li)(li)(li)(li)后所產生的(de)(de)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)：陰離(li)(li)(li)(li)子(zi)(zi)和陽(yang)(yang)離(li)(li)(li)(li)子(zi)(zi)，吸(xi)附在(zai)通過(guo)電(dian)(dian)(dian)(dian)(dian)場的(de)(de)粉塵(chen)上，使(shi)粉塵(chen)獲(huo)得電(dian)(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)(dian)極(ji)性不(bu)同的(de)(de)粉塵(chen)在(zai)電(dian)(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用下(xia)，分(fen)別向(xiang)不(bu)同極(ji)性的(de)(de)電(dian)(dian)(dian)(dian)(dian)極(ji)運(yun)動，沉積在(zai)電(dian)(dian)(dian)(dian)(dian)極(ji)上，而達到粉塵(chen)和氣體(ti)(ti)分(fen)離(li)(li)(li)(li)的(de)(de)目(mu)的(de)(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除(chu)塵(chen)器(qi)由兩大部分(fen)組成：一部分(fen)是電(dian)(dian)除(chu)塵(chen)器(qi)本體系(xi)統(tong)；另一部分(fen)是提供高(gao)壓(ya)(ya)直流電(dian)(dian)的(de)(de)供電(dian)(dian)裝置和低(di)壓(ya)(ya)自動控(kong)制(zhi)系(xi)統(tong)。電(dian)(dian)除(chu)塵(chen)器(qi)的(de)(de)結構(gou)原理(li)圖(tu)如圖(tu)1所示，高(gao)壓(ya)(ya)供電(dian)(dian)系(xi)統(tong)為(wei)升壓(ya)(ya)變壓(ya)(ya)器(qi)供電(dian)(dian)，除(chu)塵(chen)器(qi)集塵(chen)極接地。低(di)壓(ya)(ya)電(dian)(dian)控(kong)制(zhi)系(xi)統(tong)用來控(kong)制(zhi)電(dian)(dian)磁振打錘、卸灰電(dian)(dian)極、輸灰電(dian)(dian)極以及幾個部件的(de)(de)溫(wen)度(du)。