中衛靜電除塵器廠家

靜電除塵器的工(gong)作(zuo)原理是利用(yong)高壓電場使煙氣發生電離，氣流中的粉塵荷電在電場作(zuo)用(yong)下與氣流分離。負極由(you)不同斷面形狀(zhuang)的金屬(shu)導線制(zhi)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)煙氣流速等三個因素的影響(xiang)。粉塵(chen)的比(bi)電(dian)阻是評(ping)價導電(dian)性的指(zhi)標，它(ta)對除塵(chen)效率有直接的影響(xiang)。比(bi)電(dian)阻過低，塵(chen)粒難以保(bao)持在集塵(chen)電(dian)極(ji)上，致使其重(zhong)返氣流。比(bi)電(dian)阻過高，到(dao)達集塵(chen)電(dian)極(ji)的塵(chen)粒電(dian)荷不(bu)易放出(chu)，在塵(chen)層之(zhi)間形(xing)成電(dian)壓(ya)梯度會產(chan)生局部擊穿和(he)放電(dian)現(xian)象。這些情(qing)況(kuang)都會造成除塵(chen)效率下降(jiang)。

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(dian)壓需保(bao)持40一75kV乃至100kV以上。

工作原理

電除(chu)塵器的基(ji)本原理(li)(li)是利用(yong)電力捕(bu)(bu)集(ji)(ji)煙氣中的粉塵，主要包括以下(xia)四個相互有(you)關的物理(li)(li)過程：（1）氣體(ti)的電離(li)。（2）粉塵的荷(he)電。（3）荷(he)電粉塵向電極移動。（4）荷(he)電粉塵的捕(bu)(bu)集(ji)(ji)。

荷(he)電(dian)(dian)(dian)(dian)粉塵(chen)(chen)的(de)(de)(de)(de)(de)捕集過程：在(zai)(zai)兩個曲率半徑相差較大的(de)(de)(de)(de)(de)金屬(shu)陽(yang)極(ji)(ji)和(he)陰(yin)極(ji)(ji)上，通過高壓直流(liu)電(dian)(dian)(dian)(dian)，維持(chi)一(yi)個足(zu)以使氣(qi)體(ti)電(dian)(dian)(dian)(dian)離的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)場，氣(qi)體(ti)電(dian)(dian)(dian)(dian)離后所(suo)產生的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子(zi)：陰(yin)離子(zi)和(he)陽(yang)離子(zi)，吸附(fu)在(zai)(zai)通過電(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)(de)粉塵(chen)(chen)上，使粉塵(chen)(chen)獲得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極(ji)(ji)性(xing)(xing)不同的(de)(de)(de)(de)(de)粉塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)(de)作(zuo)用(yong)下，分(fen)別向(xiang)不同極(ji)(ji)性(xing)(xing)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)(ji)運動，沉積在(zai)(zai)電(dian)(dian)(dian)(dian)極(ji)(ji)上，而達到(dao)粉塵(chen)(chen)和(he)氣(qi)體(ti)分(fen)離的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)器(qi)由(you)兩(liang)大部分(fen)組成：一(yi)(yi)部分(fen)是電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)器(qi)本(ben)體系(xi)統；另一(yi)(yi)部分(fen)是提供高(gao)壓(ya)(ya)直(zhi)流電(dian)(dian)(dian)(dian)的供電(dian)(dian)(dian)(dian)裝置和(he)低壓(ya)(ya)自動控(kong)制系(xi)統。電(dian)(dian)(dian)(dian)除(chu)(chu)(chu)(chu)塵(chen)器(qi)的結構原理(li)圖(tu)如圖(tu)1所示，高(gao)壓(ya)(ya)供電(dian)(dian)(dian)(dian)系(xi)統為升壓(ya)(ya)變壓(ya)(ya)器(qi)供電(dian)(dian)(dian)(dian)，除(chu)(chu)(chu)(chu)塵(chen)器(qi)集塵(chen)極(ji)接地(di)。低壓(ya)(ya)電(dian)(dian)(dian)(dian)控(kong)制系(xi)統用(yong)來控(kong)制電(dian)(dian)(dian)(dian)磁振打錘、卸灰電(dian)(dian)(dian)(dian)極(ji)、輸灰電(dian)(dian)(dian)(dian)極(ji)以及幾個部件的溫度。