鐵嶺靜電除塵器廠家

靜電除塵器的工作原理是利用(yong)高壓(ya)電場使煙氣(qi)發生電離，氣(qi)流(liu)中的粉塵荷電在電場作用(yong)下與氣(qi)流(liu)分離。負極(ji)由不(bu)同斷面形狀(zhuang)的金屬導線制成(cheng)，叫放電電極(ji)。

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)能(neng)受粉塵(chen)性(xing)質(zhi)、設備構造和煙氣(qi)流速等三個因素的(de)(de)影(ying)響。粉塵(chen)的(de)(de)比(bi)電(dian)(dian)(dian)阻(zu)是評價導電(dian)(dian)(dian)性(xing)的(de)(de)指標，它對(dui)除(chu)(chu)塵(chen)效率有直接的(de)(de)影(ying)響。比(bi)電(dian)(dian)(dian)阻(zu)過低，塵(chen)粒(li)難以保(bao)持(chi)在(zai)集塵(chen)電(dian)(dian)(dian)極上，致(zhi)使其重返(fan)氣(qi)流。比(bi)電(dian)(dian)(dian)阻(zu)過高，到達集塵(chen)電(dian)(dian)(dian)極的(de)(de)塵(chen)粒(li)電(dian)(dian)(dian)荷不(bu)易放(fang)出，在(zai)塵(chen)層之間(jian)形成電(dian)(dian)(dian)壓(ya)梯度會產生局部擊穿和放(fang)電(dian)(dian)(dian)現象。這些情(qing)況都會造成除(chu)(chu)塵(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(yun)行電(dian)壓需保(bao)持40一75kV乃至100kV以上。

工作原理

電除塵器的(de)(de)基本原理(li)是(shi)利用電力捕集煙氣(qi)中的(de)(de)粉塵，主要包括以下(xia)四(si)個相互有關(guan)的(de)(de)物(wu)理(li)過程(cheng)：（1）氣(qi)體的(de)(de)電離。（2）粉塵的(de)(de)荷(he)電。（3）荷(he)電粉塵向電極移動。（4）荷(he)電粉塵的(de)(de)捕集。

荷電(dian)(dian)(dian)(dian)粉(fen)塵(chen)(chen)(chen)的(de)(de)捕集(ji)過程：在兩個曲率(lv)半(ban)徑相(xiang)差較大的(de)(de)金屬陽極(ji)和陰極(ji)上，通過高壓直流(liu)電(dian)(dian)(dian)(dian)，維持一個足(zu)以使氣體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)的(de)(de)電(dian)(dian)(dian)(dian)場(chang)，氣體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)后所(suo)產(chan)生的(de)(de)電(dian)(dian)(dian)(dian)子：陰離(li)子和陽離(li)子，吸附在通過電(dian)(dian)(dian)(dian)場(chang)的(de)(de)粉(fen)塵(chen)(chen)(chen)上，使粉(fen)塵(chen)(chen)(chen)獲得電(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)極(ji)性不同的(de)(de)粉(fen)塵(chen)(chen)(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)作用(yong)下，分別向不同極(ji)性的(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)塵(chen)(chen)(chen)和氣體(ti)(ti)分離(li)的(de)(de)目的(de)(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除(chu)(chu)塵器(qi)由(you)兩大部(bu)分組成：一部(bu)分是電(dian)(dian)除(chu)(chu)塵器(qi)本體系統；另(ling)一部(bu)分是提(ti)供(gong)(gong)高壓(ya)(ya)直流電(dian)(dian)的供(gong)(gong)電(dian)(dian)裝(zhuang)置和低(di)壓(ya)(ya)自(zi)動控(kong)制(zhi)系統。電(dian)(dian)除(chu)(chu)塵器(qi)的結構(gou)原(yuan)理圖(tu)如圖(tu)1所示，高壓(ya)(ya)供(gong)(gong)電(dian)(dian)系統為(wei)升(sheng)壓(ya)(ya)變壓(ya)(ya)器(qi)供(gong)(gong)電(dian)(dian)，除(chu)(chu)塵器(qi)集塵極接(jie)地。低(di)壓(ya)(ya)電(dian)(dian)控(kong)制(zhi)系統用來控(kong)制(zhi)電(dian)(dian)磁振打錘、卸(xie)灰電(dian)(dian)極、輸灰電(dian)(dian)極以及幾個部(bu)件(jian)的溫度(du)。