大同靜電除塵器廠家

靜電除塵器的工作原(yuan)理是利用高壓電(dian)場使(shi)煙氣發生電(dian)離，氣流(liu)中(zhong)的粉塵荷電(dian)在電(dian)場作用下與氣流(liu)分離。負極由不同斷(duan)面形狀的金屬導線制成，叫放電(dian)電(dian)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)性能(neng)受粉(fen)塵(chen)(chen)性質、設備構造和煙氣流速等三個因(yin)素的(de)影響。粉(fen)塵(chen)(chen)的(de)比電(dian)(dian)(dian)阻是評價導(dao)電(dian)(dian)(dian)性的(de)指標，它對除(chu)塵(chen)(chen)效率(lv)有直接的(de)影響。比電(dian)(dian)(dian)阻過低(di)，塵(chen)(chen)粒難以(yi)保持在集塵(chen)(chen)電(dian)(dian)(dian)極(ji)上，致使(shi)其重返氣流。比電(dian)(dian)(dian)阻過高，到(dao)達集塵(chen)(chen)電(dian)(dian)(dian)極(ji)的(de)塵(chen)(chen)粒電(dian)(dian)(dian)荷不易(yi)放出，在塵(chen)(chen)層之間形成(cheng)電(dian)(dian)(dian)壓梯度會(hui)產生局部擊穿和放電(dian)(dian)(dian)現象。這些情況都會(hui)造成(cheng)除(chu)塵(chen)(chen)效率(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(xing)電壓(ya)需(xu)保持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)除塵(chen)器的(de)基本原理是利用電(dian)(dian)力捕集煙氣(qi)中的(de)粉(fen)塵(chen)，主要(yao)包括以下四(si)個相互有(you)關的(de)物理過程：（1）氣(qi)體的(de)電(dian)(dian)離。（2）粉(fen)塵(chen)的(de)荷(he)電(dian)(dian)。（3）荷(he)電(dian)(dian)粉(fen)塵(chen)向電(dian)(dian)極移(yi)動。（4）荷(he)電(dian)(dian)粉(fen)塵(chen)的(de)捕集。

荷電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)的(de)(de)捕(bu)集(ji)過(guo)程：在兩個曲率半徑相差較大的(de)(de)金(jin)屬陽(yang)極(ji)(ji)和陰(yin)極(ji)(ji)上(shang)(shang)，通(tong)過(guo)高壓直(zhi)流電(dian)(dian)(dian)(dian)，維(wei)持一(yi)個足以使氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)的(de)(de)電(dian)(dian)(dian)(dian)場，氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)后所產生(sheng)的(de)(de)電(dian)(dian)(dian)(dian)子(zi)：陰(yin)離(li)子(zi)和陽(yang)離(li)子(zi)，吸附(fu)在通(tong)過(guo)電(dian)(dian)(dian)(dian)場的(de)(de)粉(fen)(fen)塵(chen)上(shang)(shang)，使粉(fen)(fen)塵(chen)獲得(de)電(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)極(ji)(ji)性不同(tong)的(de)(de)粉(fen)(fen)塵(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)作用下(xia)，分(fen)別向不同(tong)極(ji)(ji)性的(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)(ji)上(shang)(shang)，而達(da)到粉(fen)(fen)塵(chen)和氣(qi)(qi)體(ti)(ti)分(fen)離(li)的(de)(de)目的(de)(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)(qi)由兩(liang)大部(bu)分組(zu)成(cheng)：一部(bu)分是電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)(qi)本體(ti)系(xi)(xi)(xi)統(tong)；另一部(bu)分是提(ti)供(gong)(gong)高(gao)壓(ya)(ya)直流電(dian)(dian)的供(gong)(gong)電(dian)(dian)裝置(zhi)和低(di)(di)壓(ya)(ya)自動控制(zhi)系(xi)(xi)(xi)統(tong)。電(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)(qi)的結(jie)構原(yuan)理(li)圖如圖1所示，高(gao)壓(ya)(ya)供(gong)(gong)電(dian)(dian)系(xi)(xi)(xi)統(tong)為升壓(ya)(ya)變壓(ya)(ya)器(qi)(qi)(qi)供(gong)(gong)電(dian)(dian)，除(chu)(chu)塵(chen)器(qi)(qi)(qi)集塵(chen)極(ji)(ji)接地(di)。低(di)(di)壓(ya)(ya)電(dian)(dian)控制(zhi)系(xi)(xi)(xi)統(tong)用(yong)來控制(zhi)電(dian)(dian)磁振打錘、卸灰電(dian)(dian)極(ji)(ji)、輸灰電(dian)(dian)極(ji)(ji)以及(ji)幾個部(bu)件的溫度。