德宏靜電除塵器廠家

靜電除塵器的工作原理是利用高壓電場使煙氣(qi)發生電離，氣(qi)流中的粉塵荷電在(zai)電場作用下與(yu)氣(qi)流分離。負極由(you)不同斷面形狀的金(jin)屬(shu)導(dao)線(xian)制成，叫放(fang)電電極。

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)性能受粉塵(chen)(chen)性質、設備構(gou)造和煙氣流速等三個(ge)因素的(de)(de)影響。粉塵(chen)(chen)的(de)(de)比電(dian)阻是評價導電(dian)性的(de)(de)指標，它對除(chu)塵(chen)(chen)效(xiao)率有(you)直接(jie)的(de)(de)影響。比電(dian)阻過(guo)低，塵(chen)(chen)粒難以(yi)保(bao)持在集塵(chen)(chen)電(dian)極(ji)上，致(zhi)使其重返氣流。比電(dian)阻過(guo)高，到達集塵(chen)(chen)電(dian)極(ji)的(de)(de)塵(chen)(chen)粒電(dian)荷不(bu)易放出，在塵(chen)(chen)層之(zhi)間(jian)形成電(dian)壓梯度會(hui)(hui)產生局部擊(ji)穿(chuan)和放電(dian)現(xian)象。這(zhe)些情(qing)況都會(hui)(hui)造成除(chu)塵(chen)(chen)效(xiao)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持40一75kV乃至(zhi)100kV以上。

工作原理

電(dian)(dian)除塵器(qi)的(de)基(ji)本(ben)原理是利用電(dian)(dian)力捕(bu)集煙氣中的(de)粉(fen)塵，主要包括以下四個相互有關的(de)物理過程(cheng)：（1）氣體(ti)的(de)電(dian)(dian)離。（2）粉(fen)塵的(de)荷電(dian)(dian)。（3）荷電(dian)(dian)粉(fen)塵向(xiang)電(dian)(dian)極移動。（4）荷電(dian)(dian)粉(fen)塵的(de)捕(bu)集。

荷(he)電(dian)(dian)(dian)(dian)粉(fen)塵(chen)(chen)的(de)(de)(de)捕(bu)集(ji)過程：在(zai)(zai)兩個曲率半徑相差較大的(de)(de)(de)金(jin)屬陽(yang)極(ji)和(he)陰極(ji)上(shang)，通過高壓直流(liu)電(dian)(dian)(dian)(dian)，維持(chi)一個足(zu)以使氣體電(dian)(dian)(dian)(dian)離(li)的(de)(de)(de)電(dian)(dian)(dian)(dian)場(chang)(chang)，氣體電(dian)(dian)(dian)(dian)離(li)后所產生(sheng)的(de)(de)(de)電(dian)(dian)(dian)(dian)子：陰離(li)子和(he)陽(yang)離(li)子，吸附在(zai)(zai)通過電(dian)(dian)(dian)(dian)場(chang)(chang)的(de)(de)(de)粉(fen)塵(chen)(chen)上(shang)，使粉(fen)塵(chen)(chen)獲得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極(ji)性(xing)(xing)不同(tong)的(de)(de)(de)粉(fen)塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)(dian)場(chang)(chang)力的(de)(de)(de)作用下，分(fen)別向不同(tong)極(ji)性(xing)(xing)的(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)運動，沉積在(zai)(zai)電(dian)(dian)(dian)(dian)極(ji)上(shang)，而(er)達到粉(fen)塵(chen)(chen)和(he)氣體分(fen)離(li)的(de)(de)(de)目的(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)除塵器由兩大(da)部分組(zu)成：一(yi)部分是電(dian)(dian)(dian)(dian)(dian)除塵器本體(ti)系(xi)(xi)統(tong)(tong)；另一(yi)部分是提(ti)供高(gao)壓直流電(dian)(dian)(dian)(dian)(dian)的供電(dian)(dian)(dian)(dian)(dian)裝置和(he)低壓自動控(kong)(kong)制系(xi)(xi)統(tong)(tong)。電(dian)(dian)(dian)(dian)(dian)除塵器的結構原理圖如圖1所示，高(gao)壓供電(dian)(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)(tong)為升壓變壓器供電(dian)(dian)(dian)(dian)(dian)，除塵器集塵極接地。低壓電(dian)(dian)(dian)(dian)(dian)控(kong)(kong)制系(xi)(xi)統(tong)(tong)用來(lai)控(kong)(kong)制電(dian)(dian)(dian)(dian)(dian)磁振打錘、卸灰電(dian)(dian)(dian)(dian)(dian)極、輸灰電(dian)(dian)(dian)(dian)(dian)極以及幾個(ge)部件(jian)的溫度(du)。