上海靜電除塵器廠家

靜電除塵器的工作原理(li)是利用高壓(ya)電(dian)(dian)場使煙氣發生電(dian)(dian)離(li)，氣流中的粉塵荷電(dian)(dian)在電(dian)(dian)場作用下與氣流分離(li)。負極(ji)由不同斷面形狀的金(jin)屬導線(xian)制成，叫放電(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(de)性能受(shou)粉(fen)塵(chen)(chen)(chen)性質、設備構(gou)造和煙氣(qi)流速等三(san)個因素(su)的(de)影(ying)響。粉(fen)塵(chen)(chen)(chen)的(de)比(bi)電阻(zu)(zu)是評價導(dao)電性的(de)指(zhi)標，它對除塵(chen)(chen)(chen)效(xiao)率(lv)有直接的(de)影(ying)響。比(bi)電阻(zu)(zu)過低，塵(chen)(chen)(chen)粒難以保持在集塵(chen)(chen)(chen)電極上(shang)，致使其重返氣(qi)流。比(bi)電阻(zu)(zu)過高，到達集塵(chen)(chen)(chen)電極的(de)塵(chen)(chen)(chen)粒電荷(he)不(bu)易放出(chu)，在塵(chen)(chen)(chen)層之(zhi)間形成電壓(ya)梯度會產生(sheng)局部擊穿和放電現象。這些(xie)情況都(dou)會造成除塵(chen)(chen)(chen)效(xiao)率(lv)下(xia)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(xu)保持40一75kV乃至(zhi)100kV以上。

工作原理

電(dian)(dian)(dian)除(chu)塵(chen)器的(de)(de)基本原理是利用(yong)電(dian)(dian)(dian)力(li)捕(bu)集煙氣中的(de)(de)粉(fen)(fen)塵(chen)，主(zhu)要包括(kuo)以(yi)下四個相互有關的(de)(de)物理過(guo)程：（1）氣體(ti)的(de)(de)電(dian)(dian)(dian)離(li)。（2）粉(fen)(fen)塵(chen)的(de)(de)荷(he)電(dian)(dian)(dian)。（3）荷(he)電(dian)(dian)(dian)粉(fen)(fen)塵(chen)向電(dian)(dian)(dian)極移(yi)動。（4）荷(he)電(dian)(dian)(dian)粉(fen)(fen)塵(chen)的(de)(de)捕(bu)集。

荷(he)(he)電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)的捕(bu)集過(guo)程：在兩個曲率半徑相差較大(da)的金屬陽極(ji)和陰(yin)極(ji)上(shang)(shang)，通(tong)過(guo)高(gao)壓直流電(dian)(dian)(dian)(dian)，維持(chi)一(yi)個足以(yi)使氣(qi)體電(dian)(dian)(dian)(dian)離(li)的電(dian)(dian)(dian)(dian)場(chang)(chang)，氣(qi)體電(dian)(dian)(dian)(dian)離(li)后(hou)所產生的電(dian)(dian)(dian)(dian)子：陰(yin)離(li)子和陽離(li)子，吸附在通(tong)過(guo)電(dian)(dian)(dian)(dian)場(chang)(chang)的粉(fen)(fen)塵(chen)上(shang)(shang)，使粉(fen)(fen)塵(chen)獲(huo)得電(dian)(dian)(dian)(dian)荷(he)(he)。荷(he)(he)電(dian)(dian)(dian)(dian)極(ji)性不同(tong)的粉(fen)(fen)塵(chen)在電(dian)(dian)(dian)(dian)場(chang)(chang)力(li)的作用下，分(fen)別(bie)向不同(tong)極(ji)性的電(dian)(dian)(dian)(dian)極(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)上(shang)(shang)，而達到粉(fen)(fen)塵(chen)和氣(qi)體分(fen)離(li)的目的。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)由兩大部(bu)分組成：一部(bu)分是(shi)電(dian)(dian)(dian)除塵(chen)(chen)器(qi)本體系統；另一部(bu)分是(shi)提供高(gao)壓直流電(dian)(dian)(dian)的供電(dian)(dian)(dian)裝(zhuang)置和低壓自動控(kong)(kong)制系統。電(dian)(dian)(dian)除塵(chen)(chen)器(qi)的結(jie)構原(yuan)理圖(tu)如(ru)圖(tu)1所(suo)示，高(gao)壓供電(dian)(dian)(dian)系統為(wei)升壓變壓器(qi)供電(dian)(dian)(dian)，除塵(chen)(chen)器(qi)集塵(chen)(chen)極接地。低壓電(dian)(dian)(dian)控(kong)(kong)制系統用來控(kong)(kong)制電(dian)(dian)(dian)磁振打錘、卸灰電(dian)(dian)(dian)極、輸灰電(dian)(dian)(dian)極以及(ji)幾(ji)個部(bu)件的溫(wen)度。