河北靜電除塵器廠家

靜電除塵器的(de)(de)工作原理是利(li)用高(gao)壓(ya)電(dian)場(chang)使煙氣發生(sheng)電(dian)離，氣流中的(de)(de)粉(fen)塵荷電(dian)在電(dian)場(chang)作用下與氣流分(fen)離。負極(ji)由不同斷(duan)面(mian)形狀的(de)(de)金屬導(dao)線制成，叫放(fang)電(dian)電(dian)極(ji)。

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(xing)能受粉塵(chen)(chen)性(xing)質、設備構(gou)造(zao)和煙氣(qi)流速等三個因素的影響(xiang)。粉塵(chen)(chen)的比(bi)電(dian)(dian)阻是評價導電(dian)(dian)性(xing)的指標，它對除塵(chen)(chen)效率有直接的影響(xiang)。比(bi)電(dian)(dian)阻過(guo)低，塵(chen)(chen)粒難以保持(chi)在集塵(chen)(chen)電(dian)(dian)極上，致使其(qi)重返(fan)氣(qi)流。比(bi)電(dian)(dian)阻過(guo)高，到達集塵(chen)(chen)電(dian)(dian)極的塵(chen)(chen)粒電(dian)(dian)荷不易(yi)放(fang)出，在塵(chen)(chen)層之間(jian)形成(cheng)電(dian)(dian)壓梯度會(hui)產生局部擊穿(chuan)和放(fang)電(dian)(dian)現象。這(zhe)些(xie)情況都會(hui)造(zao)成(cheng)除塵(chen)(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(xing)電壓(ya)需保(bao)持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)(dian)除塵(chen)(chen)器的基本原理是利用電(dian)(dian)(dian)力捕集(ji)煙氣中的粉(fen)塵(chen)(chen)，主要包括以下四個相互有(you)關的物理過程：（1）氣體的電(dian)(dian)(dian)離。（2）粉(fen)塵(chen)(chen)的荷電(dian)(dian)(dian)。（3）荷電(dian)(dian)(dian)粉(fen)塵(chen)(chen)向(xiang)電(dian)(dian)(dian)極移動。（4）荷電(dian)(dian)(dian)粉(fen)塵(chen)(chen)的捕集(ji)。

荷電(dian)(dian)粉塵的(de)(de)(de)捕集過(guo)(guo)程：在(zai)兩個曲率半徑相差(cha)較大的(de)(de)(de)金屬陽極(ji)和(he)陰(yin)極(ji)上，通過(guo)(guo)高壓直流電(dian)(dian)，維(wei)持一(yi)個足(zu)以使(shi)氣體(ti)電(dian)(dian)離(li)(li)的(de)(de)(de)電(dian)(dian)場(chang)，氣體(ti)電(dian)(dian)離(li)(li)后所產生的(de)(de)(de)電(dian)(dian)子(zi)：陰(yin)離(li)(li)子(zi)和(he)陽離(li)(li)子(zi)，吸(xi)附在(zai)通過(guo)(guo)電(dian)(dian)場(chang)的(de)(de)(de)粉塵上，使(shi)粉塵獲得電(dian)(dian)荷。荷電(dian)(dian)極(ji)性(xing)不同的(de)(de)(de)粉塵在(zai)電(dian)(dian)場(chang)力的(de)(de)(de)作用下，分(fen)別向不同極(ji)性(xing)的(de)(de)(de)電(dian)(dian)極(ji)運動，沉積在(zai)電(dian)(dian)極(ji)上，而(er)達到粉塵和(he)氣體(ti)分(fen)離(li)(li)的(de)(de)(de)目的(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)由兩大部(bu)分組成：一部(bu)分是(shi)電(dian)(dian)(dian)(dian)除塵(chen)器(qi)本體(ti)系統；另一部(bu)分是(shi)提供高壓(ya)直流電(dian)(dian)(dian)(dian)的(de)供電(dian)(dian)(dian)(dian)裝置和低壓(ya)自(zi)動(dong)控制系統。電(dian)(dian)(dian)(dian)除塵(chen)器(qi)的(de)結構原理圖(tu)如(ru)圖(tu)1所示，高壓(ya)供電(dian)(dian)(dian)(dian)系統為升壓(ya)變壓(ya)器(qi)供電(dian)(dian)(dian)(dian)，除塵(chen)器(qi)集(ji)塵(chen)極接(jie)地。低壓(ya)電(dian)(dian)(dian)(dian)控制系統用來控制電(dian)(dian)(dian)(dian)磁振打(da)錘、卸灰電(dian)(dian)(dian)(dian)極、輸(shu)灰電(dian)(dian)(dian)(dian)極以及幾個部(bu)件的(de)溫度(du)。