天門靜電除塵器廠家

靜電除塵器的工作原理是(shi)利用(yong)高壓電場使(shi)煙氣發生電離，氣流中的粉塵(chen)荷電在(zai)電場作用(yong)下與(yu)氣流分(fen)離。負極由不(bu)同斷面形狀(zhuang)的金屬導線制成，叫(jiao)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)(de)性(xing)(xing)能(neng)受(shou)粉塵(chen)(chen)性(xing)(xing)質、設備(bei)構(gou)造和(he)煙氣流(liu)(liu)速等三個因素的(de)(de)影響。粉塵(chen)(chen)的(de)(de)比(bi)電(dian)阻(zu)是評價(jia)導電(dian)性(xing)(xing)的(de)(de)指標，它對除塵(chen)(chen)效率有直接的(de)(de)影響。比(bi)電(dian)阻(zu)過低(di)，塵(chen)(chen)粒(li)難(nan)以保持在集塵(chen)(chen)電(dian)極上，致使(shi)其重返氣流(liu)(liu)。比(bi)電(dian)阻(zu)過高，到達集塵(chen)(chen)電(dian)極的(de)(de)塵(chen)(chen)粒(li)電(dian)荷(he)不易放出，在塵(chen)(chen)層(ceng)之(zhi)間形成(cheng)電(dian)壓梯度會產(chan)生局(ju)部擊穿和(he)放電(dian)現象(xiang)。這些(xie)情況都(dou)會造成(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，靜電除塵器運行電(dian)壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)(dian)除塵(chen)(chen)器的(de)(de)基本原理是(shi)利用電(dian)(dian)(dian)力捕(bu)集(ji)(ji)煙氣中的(de)(de)粉(fen)塵(chen)(chen)，主要包括以下四個(ge)相互有關的(de)(de)物理過程：（1）氣體的(de)(de)電(dian)(dian)(dian)離(li)。（2）粉(fen)塵(chen)(chen)的(de)(de)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(de)(de)捕(bu)集(ji)(ji)。

荷(he)電(dian)(dian)(dian)(dian)粉塵(chen)的(de)捕集過程：在兩個曲率半徑相差(cha)較大的(de)金屬(shu)陽極(ji)和陰極(ji)上，通過高壓直流電(dian)(dian)(dian)(dian)，維持一個足以使氣(qi)體電(dian)(dian)(dian)(dian)離(li)(li)的(de)電(dian)(dian)(dian)(dian)場(chang)，氣(qi)體電(dian)(dian)(dian)(dian)離(li)(li)后所(suo)產生的(de)電(dian)(dian)(dian)(dian)子：陰離(li)(li)子和陽離(li)(li)子，吸附在通過電(dian)(dian)(dian)(dian)場(chang)的(de)粉塵(chen)上，使粉塵(chen)獲(huo)得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極(ji)性(xing)不(bu)同的(de)粉塵(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)作用下，分(fen)別(bie)向不(bu)同極(ji)性(xing)的(de)電(dian)(dian)(dian)(dian)極(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)上，而達(da)到粉塵(chen)和氣(qi)體分(fen)離(li)(li)的(de)目的(de)。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)(chu)塵器(qi)由兩大部(bu)分組成：一(yi)部(bu)分是電(dian)(dian)(dian)除(chu)(chu)塵器(qi)本體系(xi)(xi)統；另(ling)一(yi)部(bu)分是提(ti)供(gong)高(gao)壓(ya)(ya)直流電(dian)(dian)(dian)的(de)供(gong)電(dian)(dian)(dian)裝置和低壓(ya)(ya)自動控制系(xi)(xi)統。電(dian)(dian)(dian)除(chu)(chu)塵器(qi)的(de)結構原理(li)圖如圖1所示，高(gao)壓(ya)(ya)供(gong)電(dian)(dian)(dian)系(xi)(xi)統為升壓(ya)(ya)變壓(ya)(ya)器(qi)供(gong)電(dian)(dian)(dian)，除(chu)(chu)塵器(qi)集塵極接地。低壓(ya)(ya)電(dian)(dian)(dian)控制系(xi)(xi)統用(yong)來(lai)控制電(dian)(dian)(dian)磁振打錘、卸灰電(dian)(dian)(dian)極、輸(shu)灰電(dian)(dian)(dian)極以(yi)及幾個(ge)部(bu)件的(de)溫度。