蘇州靜電除塵器廠家

靜電除塵器的(de)工(gong)作原(yuan)理(li)是(shi)利用(yong)高壓電(dian)(dian)場(chang)使(shi)煙氣(qi)發生電(dian)(dian)離，氣(qi)流(liu)中的(de)粉塵(chen)荷電(dian)(dian)在電(dian)(dian)場(chang)作用(yong)下與氣(qi)流(liu)分(fen)離。負極由不同(tong)斷(duan)面形狀的(de)金屬導線(xian)制成，叫放電(dian)(dian)電(dian)(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(xing)(xing)能(neng)受粉塵(chen)性(xing)(xing)質、設備(bei)構造和(he)煙氣(qi)流速等(deng)三個(ge)因素的(de)(de)影響。粉塵(chen)的(de)(de)比(bi)電(dian)(dian)(dian)阻是評價導電(dian)(dian)(dian)性(xing)(xing)的(de)(de)指(zhi)標，它對(dui)除塵(chen)效率有直接的(de)(de)影響。比(bi)電(dian)(dian)(dian)阻過低(di)，塵(chen)粒難(nan)以保持在集塵(chen)電(dian)(dian)(dian)極上，致(zhi)使其(qi)重返(fan)氣(qi)流。比(bi)電(dian)(dian)(dian)阻過高，到達集塵(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(xing)成(cheng)電(dian)(dian)(dian)壓(ya)梯(ti)度會(hui)產生局部(bu)擊(ji)穿和(he)放電(dian)(dian)(dian)現象。這些情(qing)況都會(hui)造成(cheng)除塵(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，靜電除塵器運行(xing)電(dian)壓(ya)需保持40一75kV乃至100kV以上。

工作原理

電除塵(chen)器的基本原理(li)是利用電力捕(bu)集煙氣中的粉塵(chen)，主要包括以(yi)下四(si)個(ge)相互有關(guan)的物理(li)過程(cheng)：（1）氣體(ti)的電離。（2）粉塵(chen)的荷(he)電。（3）荷(he)電粉塵(chen)向電極移(yi)動。（4）荷(he)電粉塵(chen)的捕(bu)集。

荷電(dian)(dian)(dian)粉(fen)(fen)塵的(de)捕集(ji)過(guo)程(cheng)：在兩個(ge)(ge)曲率(lv)半徑(jing)相差(cha)較大的(de)金(jin)屬陽極(ji)和(he)(he)陰極(ji)上，通過(guo)高壓直流電(dian)(dian)(dian)，維持一(yi)個(ge)(ge)足以使氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)離(li)的(de)電(dian)(dian)(dian)場，氣(qi)(qi)體(ti)(ti)電(dian)(dian)(dian)離(li)后所產(chan)生(sheng)的(de)電(dian)(dian)(dian)子：陰離(li)子和(he)(he)陽離(li)子，吸附在通過(guo)電(dian)(dian)(dian)場的(de)粉(fen)(fen)塵上，使粉(fen)(fen)塵獲得電(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)極(ji)性(xing)不同(tong)的(de)粉(fen)(fen)塵在電(dian)(dian)(dian)場力(li)的(de)作用下(xia)，分別(bie)向(xiang)不同(tong)極(ji)性(xing)的(de)電(dian)(dian)(dian)極(ji)運(yun)動，沉積在電(dian)(dian)(dian)極(ji)上，而達(da)到粉(fen)(fen)塵和(he)(he)氣(qi)(qi)體(ti)(ti)分離(li)的(de)目的(de)。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)塵器(qi)由兩(liang)大部分組(zu)成：一部分是電(dian)(dian)(dian)除(chu)塵器(qi)本體系(xi)統；另一部分是提供高(gao)壓(ya)直流電(dian)(dian)(dian)的供電(dian)(dian)(dian)裝(zhuang)置和低(di)壓(ya)自動控(kong)(kong)制系(xi)統。電(dian)(dian)(dian)除(chu)塵器(qi)的結構原理圖(tu)如(ru)圖(tu)1所示，高(gao)壓(ya)供電(dian)(dian)(dian)系(xi)統為(wei)升(sheng)壓(ya)變壓(ya)器(qi)供電(dian)(dian)(dian)，除(chu)塵器(qi)集塵極接地。低(di)壓(ya)電(dian)(dian)(dian)控(kong)(kong)制系(xi)統用來控(kong)(kong)制電(dian)(dian)(dian)磁振打錘、卸(xie)灰電(dian)(dian)(dian)極、輸灰電(dian)(dian)(dian)極以及幾個(ge)部件的溫度。