安陽靜電除塵器廠家

靜電除塵器的工作原(yuan)理(li)是利用高壓電場(chang)使煙氣(qi)發生電離(li)，氣(qi)流中的粉(fen)塵(chen)荷電在電場(chang)作用下與氣(qi)流分離(li)。負極由不同斷面形狀的金屬導線(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(de)性(xing)能受粉塵(chen)(chen)性(xing)質、設備(bei)構造和(he)煙氣流速等三個因素的(de)影響(xiang)。粉塵(chen)(chen)的(de)比(bi)(bi)電(dian)(dian)阻(zu)是評價導電(dian)(dian)性(xing)的(de)指標，它對(dui)除塵(chen)(chen)效(xiao)率(lv)有(you)直接(jie)的(de)影響(xiang)。比(bi)(bi)電(dian)(dian)阻(zu)過(guo)低，塵(chen)(chen)粒難以保持(chi)在(zai)集(ji)塵(chen)(chen)電(dian)(dian)極上，致(zhi)使其重返氣流。比(bi)(bi)電(dian)(dian)阻(zu)過(guo)高，到(dao)達集(ji)塵(chen)(chen)電(dian)(dian)極的(de)塵(chen)(chen)粒電(dian)(dian)荷(he)不易放出，在(zai)塵(chen)(chen)層之(zhi)間形成電(dian)(dian)壓梯度會產生局部擊(ji)穿(chuan)和(he)放電(dian)(dian)現象。這些情況都會造成除塵(chen)(chen)效(xiao)率(lv)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40一75kV乃(nai)至(zhi)100kV以上。

工作原理

電(dian)(dian)(dian)(dian)除塵(chen)器的基本(ben)原(yuan)理是利(li)用電(dian)(dian)(dian)(dian)力捕集煙氣中的粉(fen)(fen)塵(chen)，主要包(bao)括以下四個相(xiang)互有關的物理過程：（1）氣體的電(dian)(dian)(dian)(dian)離。（2）粉(fen)(fen)塵(chen)的荷電(dian)(dian)(dian)(dian)。（3）荷電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)向電(dian)(dian)(dian)(dian)極(ji)移動。（4）荷電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)的捕集。

荷電(dian)粉塵(chen)(chen)(chen)的(de)(de)捕集過(guo)程：在(zai)(zai)兩個曲率半徑相(xiang)差(cha)較大的(de)(de)金屬(shu)陽(yang)極(ji)和陰極(ji)上，通過(guo)高壓直流電(dian)，維持一個足以使氣體電(dian)離(li)(li)的(de)(de)電(dian)場，氣體電(dian)離(li)(li)后所產生(sheng)的(de)(de)電(dian)子(zi)：陰離(li)(li)子(zi)和陽(yang)離(li)(li)子(zi)，吸附在(zai)(zai)通過(guo)電(dian)場的(de)(de)粉塵(chen)(chen)(chen)上，使粉塵(chen)(chen)(chen)獲得電(dian)荷。荷電(dian)極(ji)性不(bu)同的(de)(de)粉塵(chen)(chen)(chen)在(zai)(zai)電(dian)場力的(de)(de)作用(yong)下(xia)，分(fen)別向(xiang)不(bu)同極(ji)性的(de)(de)電(dian)極(ji)運動，沉積在(zai)(zai)電(dian)極(ji)上，而達到粉塵(chen)(chen)(chen)和氣體分(fen)離(li)(li)的(de)(de)目的(de)(de)。

基本結構

靜電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵器由兩大部(bu)分組成(cheng)：一部(bu)分是(shi)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵器本體(ti)系(xi)統(tong)(tong)；另一部(bu)分是(shi)提供高壓(ya)(ya)直流電(dian)(dian)(dian)(dian)(dian)的(de)供電(dian)(dian)(dian)(dian)(dian)裝置和低(di)壓(ya)(ya)自動控制(zhi)(zhi)系(xi)統(tong)(tong)。電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)塵器的(de)結構原理圖(tu)如圖(tu)1所示，高壓(ya)(ya)供電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)為升壓(ya)(ya)變壓(ya)(ya)器供電(dian)(dian)(dian)(dian)(dian)，除(chu)(chu)塵器集塵極(ji)接(jie)地。低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)控制(zhi)(zhi)系(xi)統(tong)(tong)用來控制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)磁振打錘、卸(xie)灰電(dian)(dian)(dian)(dian)(dian)極(ji)、輸灰電(dian)(dian)(dian)(dian)(dian)極(ji)以(yi)及幾個部(bu)件(jian)的(de)溫度。