甘南靜電除塵器廠家

靜電除塵器的(de)工作(zuo)原(yuan)理是(shi)利用(yong)高壓電(dian)(dian)場使煙(yan)氣發生(sheng)電(dian)(dian)離(li)，氣流中的(de)粉塵荷電(dian)(dian)在(zai)電(dian)(dian)場作(zuo)用(yong)下(xia)與氣流分離(li)。負極(ji)由不同斷面形狀的(de)金屬導線制成，叫(jiao)放電(dian)(dian)電(dian)(dian)極(ji)。

正極由不同幾何形狀的金屬板制成，叫集塵電極。靜電除塵器廠家的性能受(shou)粉(fen)塵(chen)(chen)(chen)性質、設備構(gou)造(zao)(zao)和(he)煙氣流速等三個因素的影(ying)響(xiang)。粉(fen)塵(chen)(chen)(chen)的比(bi)電(dian)(dian)(dian)(dian)阻是評(ping)價導電(dian)(dian)(dian)(dian)性的指標，它對除塵(chen)(chen)(chen)效率有直接的影(ying)響(xiang)。比(bi)電(dian)(dian)(dian)(dian)阻過(guo)低，塵(chen)(chen)(chen)粒難以保持在集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極上，致(zhi)使其重返(fan)氣流。比(bi)電(dian)(dian)(dian)(dian)阻過(guo)高，到達集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)(dian)極的塵(chen)(chen)(chen)粒電(dian)(dian)(dian)(dian)荷不易(yi)放出，在塵(chen)(chen)(chen)層之(zhi)間形成(cheng)電(dian)(dian)(dian)(dian)壓梯度會產生局部擊穿和(he)放電(dian)(dian)(dian)(dian)現(xian)象。這些情(qing)況(kuang)都(dou)會造(zao)(zao)成(cheng)除塵(chen)(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，靜電除塵器運行電壓需保(bao)持(chi)40一75kV乃至100kV以(yi)上(shang)。

工作原理

電(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)基本原理是利用(yong)電(dian)(dian)力捕(bu)(bu)集煙氣中的(de)(de)粉(fen)塵(chen)(chen)，主(zhu)要包括以下四個(ge)相互有關(guan)的(de)(de)物理過程：（1）氣體的(de)(de)電(dian)(dian)離。（2）粉(fen)塵(chen)(chen)的(de)(de)荷電(dian)(dian)。（3）荷電(dian)(dian)粉(fen)塵(chen)(chen)向電(dian)(dian)極(ji)移動。（4）荷電(dian)(dian)粉(fen)塵(chen)(chen)的(de)(de)捕(bu)(bu)集。

荷電粉塵(chen)的捕集過程：在(zai)(zai)(zai)兩個曲率(lv)半(ban)徑(jing)相差(cha)較大(da)的金屬陽極(ji)和陰極(ji)上(shang)，通(tong)過高壓直流電，維(wei)持一個足(zu)以使氣體(ti)電離的電場，氣體(ti)電離后所(suo)產生(sheng)的電子：陰離子和陽離子，吸附在(zai)(zai)(zai)通(tong)過電場的粉塵(chen)上(shang)，使粉塵(chen)獲得電荷。荷電極(ji)性(xing)不(bu)同的粉塵(chen)在(zai)(zai)(zai)電場力的作用下，分別向不(bu)同極(ji)性(xing)的電極(ji)運動，沉積在(zai)(zai)(zai)電極(ji)上(shang)，而達到粉塵(chen)和氣體(ti)分離的目的。

基本結構

靜電(dian)(dian)電(dian)(dian)除塵器(qi)(qi)(qi)(qi)由兩大部(bu)分(fen)組成(cheng)：一部(bu)分(fen)是(shi)電(dian)(dian)除塵器(qi)(qi)(qi)(qi)本體系(xi)(xi)(xi)統；另一部(bu)分(fen)是(shi)提供(gong)高(gao)壓(ya)(ya)(ya)直流電(dian)(dian)的供(gong)電(dian)(dian)裝置(zhi)和低壓(ya)(ya)(ya)自動控制系(xi)(xi)(xi)統。電(dian)(dian)除塵器(qi)(qi)(qi)(qi)的結(jie)構原理圖如圖1所示，高(gao)壓(ya)(ya)(ya)供(gong)電(dian)(dian)系(xi)(xi)(xi)統為升壓(ya)(ya)(ya)變壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)供(gong)電(dian)(dian)，除塵器(qi)(qi)(qi)(qi)集(ji)塵極(ji)接地。低壓(ya)(ya)(ya)電(dian)(dian)控制系(xi)(xi)(xi)統用來控制電(dian)(dian)磁振打錘、卸灰(hui)電(dian)(dian)極(ji)、輸灰(hui)電(dian)(dian)極(ji)以及幾個部(bu)件的溫度。