延安靜電除塵器廠家

靜電除塵器的工(gong)作原理是利用(yong)高壓電場(chang)使煙氣發(fa)生電離(li)，氣流中的粉塵荷電在(zai)電場(chang)作用(yong)下與氣流分離(li)。負極由(you)不(bu)同斷(duan)面形狀的金屬導線制(zhi)成(cheng)，叫放(fang)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)性能受(shou)粉塵(chen)性質、設備構造和煙氣(qi)流(liu)速等三個(ge)因素的(de)影響(xiang)。粉塵(chen)的(de)比電(dian)(dian)阻是評(ping)價(jia)導電(dian)(dian)性的(de)指標(biao)，它對除(chu)塵(chen)效(xiao)率有直接的(de)影響(xiang)。比電(dian)(dian)阻過低，塵(chen)粒(li)(li)難以(yi)保持在(zai)集(ji)塵(chen)電(dian)(dian)極上，致使其重(zhong)返氣(qi)流(liu)。比電(dian)(dian)阻過高，到(dao)達集(ji)塵(chen)電(dian)(dian)極的(de)塵(chen)粒(li)(li)電(dian)(dian)荷不易放(fang)出(chu)，在(zai)塵(chen)層(ceng)之間形成電(dian)(dian)壓(ya)梯(ti)度會產生局(ju)部擊(ji)穿和放(fang)電(dian)(dian)現象。這些情況都會造成除(chu)塵(chen)效(xiao)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(dian)壓需保(bao)持40一75kV乃至100kV以上(shang)。

工作原理

電(dian)(dian)(dian)(dian)除塵(chen)器(qi)的(de)基(ji)本原理是利用電(dian)(dian)(dian)(dian)力捕集煙氣中(zhong)的(de)粉(fen)(fen)塵(chen)，主(zhu)要包括以下四個相互有關的(de)物理過(guo)程：（1）氣體的(de)電(dian)(dian)(dian)(dian)離。（2）粉(fen)(fen)塵(chen)的(de)荷(he)(he)電(dian)(dian)(dian)(dian)。（3）荷(he)(he)電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)向電(dian)(dian)(dian)(dian)極移動(dong)。（4）荷(he)(he)電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)的(de)捕集。

荷(he)電(dian)(dian)(dian)(dian)粉(fen)(fen)(fen)塵(chen)的(de)(de)(de)(de)(de)捕集過程(cheng)：在兩(liang)個(ge)曲率半徑相差較大的(de)(de)(de)(de)(de)金屬(shu)陽(yang)極(ji)和(he)陰極(ji)上，通(tong)過高壓直流電(dian)(dian)(dian)(dian)，維(wei)持一個(ge)足以使(shi)氣體(ti)電(dian)(dian)(dian)(dian)離的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)場，氣體(ti)電(dian)(dian)(dian)(dian)離后所產生的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子：陰離子和(he)陽(yang)離子，吸(xi)附(fu)在通(tong)過電(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)(de)粉(fen)(fen)(fen)塵(chen)上，使(shi)粉(fen)(fen)(fen)塵(chen)獲得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極(ji)性(xing)不(bu)同(tong)(tong)的(de)(de)(de)(de)(de)粉(fen)(fen)(fen)塵(chen)在電(dian)(dian)(dian)(dian)場力(li)的(de)(de)(de)(de)(de)作(zuo)用(yong)下，分(fen)別向不(bu)同(tong)(tong)極(ji)性(xing)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)上，而達到粉(fen)(fen)(fen)塵(chen)和(he)氣體(ti)分(fen)離的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除塵器(qi)(qi)由兩大部分(fen)組成：一部分(fen)是電(dian)(dian)除塵器(qi)(qi)本體系統；另(ling)一部分(fen)是提(ti)供高(gao)壓(ya)直(zhi)流電(dian)(dian)的供電(dian)(dian)裝置和低壓(ya)自動控(kong)制(zhi)系統。電(dian)(dian)除塵器(qi)(qi)的結構原理圖如圖1所(suo)示，高(gao)壓(ya)供電(dian)(dian)系統為升壓(ya)變壓(ya)器(qi)(qi)供電(dian)(dian)，除塵器(qi)(qi)集(ji)塵極(ji)接地。低壓(ya)電(dian)(dian)控(kong)制(zhi)系統用來控(kong)制(zhi)電(dian)(dian)磁振(zhen)打錘、卸灰(hui)電(dian)(dian)極(ji)、輸灰(hui)電(dian)(dian)極(ji)以及幾個部件的溫度(du)。