桂林靜電除塵器廠家

靜電除塵器的工作(zuo)原理是(shi)利(li)用(yong)高壓(ya)電(dian)場使煙氣發生電(dian)離(li)，氣流中的粉(fen)塵荷(he)電(dian)在電(dian)場作(zuo)用(yong)下與氣流分離(li)。負極由不同斷面形狀的金(jin)屬導(dao)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)(de)性能受粉(fen)塵(chen)性質、設(she)備(bei)構(gou)造(zao)和煙氣流速等三(san)個因素的(de)(de)影(ying)響(xiang)。粉(fen)塵(chen)的(de)(de)比電(dian)(dian)(dian)阻是(shi)評價導電(dian)(dian)(dian)性的(de)(de)指標，它對除塵(chen)效率有直接(jie)的(de)(de)影(ying)響(xiang)。比電(dian)(dian)(dian)阻過低，塵(chen)粒難(nan)以保持在集(ji)塵(chen)電(dian)(dian)(dian)極上，致使其重(zhong)返氣流。比電(dian)(dian)(dian)阻過高，到達集(ji)塵(chen)電(dian)(dian)(dian)極的(de)(de)塵(chen)粒電(dian)(dian)(dian)荷不易放出，在塵(chen)層之間形成(cheng)電(dian)(dian)(dian)壓梯度會(hui)產(chan)生(sheng)局部擊穿和放電(dian)(dian)(dian)現象。這些情況都會(hui)造(zao)成(cheng)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(xing)電壓需保持40一75kV乃至(zhi)100kV以上(shang)。

工作原理

電(dian)(dian)(dian)除塵(chen)(chen)器的基本原理是利用電(dian)(dian)(dian)力捕集煙氣(qi)中的粉塵(chen)(chen)，主(zhu)要包括以下四(si)個相互(hu)有關的物理過程：（1）氣(qi)體(ti)的電(dian)(dian)(dian)離(li)。（2）粉塵(chen)(chen)的荷(he)電(dian)(dian)(dian)。（3）荷(he)電(dian)(dian)(dian)粉塵(chen)(chen)向電(dian)(dian)(dian)極(ji)移動(dong)。（4）荷(he)電(dian)(dian)(dian)粉塵(chen)(chen)的捕集。

荷電(dian)(dian)(dian)粉塵(chen)的(de)捕集過程(cheng)：在(zai)(zai)(zai)兩(liang)個曲率(lv)半徑相(xiang)差較大的(de)金(jin)屬陽(yang)極(ji)和陰極(ji)上，通過高(gao)壓直流電(dian)(dian)(dian)，維(wei)持一個足以使氣體電(dian)(dian)(dian)離(li)(li)的(de)電(dian)(dian)(dian)場(chang)(chang)，氣體電(dian)(dian)(dian)離(li)(li)后所產生的(de)電(dian)(dian)(dian)子：陰離(li)(li)子和陽(yang)離(li)(li)子，吸附(fu)在(zai)(zai)(zai)通過電(dian)(dian)(dian)場(chang)(chang)的(de)粉塵(chen)上，使粉塵(chen)獲得(de)電(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)極(ji)性(xing)不(bu)同(tong)的(de)粉塵(chen)在(zai)(zai)(zai)電(dian)(dian)(dian)場(chang)(chang)力的(de)作用(yong)下，分別向不(bu)同(tong)極(ji)性(xing)的(de)電(dian)(dian)(dian)極(ji)運動，沉積在(zai)(zai)(zai)電(dian)(dian)(dian)極(ji)上，而達到粉塵(chen)和氣體分離(li)(li)的(de)目的(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除塵(chen)(chen)器由兩大部(bu)分(fen)組成(cheng)：一(yi)部(bu)分(fen)是電(dian)(dian)除塵(chen)(chen)器本體系統(tong)；另一(yi)部(bu)分(fen)是提供高壓(ya)直流電(dian)(dian)的(de)供電(dian)(dian)裝置和(he)低壓(ya)自(zi)動控(kong)(kong)制(zhi)系統(tong)。電(dian)(dian)除塵(chen)(chen)器的(de)結構原(yuan)理圖如圖1所示，高壓(ya)供電(dian)(dian)系統(tong)為升壓(ya)變壓(ya)器供電(dian)(dian)，除塵(chen)(chen)器集塵(chen)(chen)極(ji)接(jie)地。低壓(ya)電(dian)(dian)控(kong)(kong)制(zhi)系統(tong)用來(lai)控(kong)(kong)制(zhi)電(dian)(dian)磁振打(da)錘、卸灰電(dian)(dian)極(ji)、輸(shu)灰電(dian)(dian)極(ji)以及幾個部(bu)件的(de)溫(wen)度。