鄭州靜電除塵器廠家

靜電除塵器的工作原(yuan)理是利用高壓電(dian)場使(shi)煙氣發生電(dian)離(li)，氣流中的粉塵荷電(dian)在電(dian)場作用下與氣流分離(li)。負極(ji)由不同斷面形(xing)狀的金屬導線制成(cheng)，叫放電(dian)電(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)(de)(de)性能(neng)受(shou)粉塵(chen)性質、設備構造(zao)和煙氣流速等三個因素的(de)(de)(de)影(ying)響。粉塵(chen)的(de)(de)(de)比(bi)電(dian)(dian)(dian)阻(zu)是評價(jia)導電(dian)(dian)(dian)性的(de)(de)(de)指標，它對除(chu)(chu)塵(chen)效(xiao)率有(you)直接的(de)(de)(de)影(ying)響。比(bi)電(dian)(dian)(dian)阻(zu)過(guo)低，塵(chen)粒(li)(li)難以保持在集塵(chen)電(dian)(dian)(dian)極上(shang)，致使(shi)其重返氣流。比(bi)電(dian)(dian)(dian)阻(zu)過(guo)高，到達集塵(chen)電(dian)(dian)(dian)極的(de)(de)(de)塵(chen)粒(li)(li)電(dian)(dian)(dian)荷不易放出，在塵(chen)層(ceng)之間形成電(dian)(dian)(dian)壓梯度會(hui)產生局部擊穿和放電(dian)(dian)(dian)現(xian)象(xiang)。這些情(qing)況都會(hui)造(zao)成除(chu)(chu)塵(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100kV以上。

工作原理

電除塵(chen)(chen)器的(de)基(ji)本原理是利用電力捕(bu)集(ji)煙氣中的(de)粉(fen)塵(chen)(chen)，主要包括以下(xia)四個相互有關的(de)物理過程：（1）氣體的(de)電離。（2）粉(fen)塵(chen)(chen)的(de)荷(he)(he)(he)電。（3）荷(he)(he)(he)電粉(fen)塵(chen)(chen)向電極移動(dong)。（4）荷(he)(he)(he)電粉(fen)塵(chen)(chen)的(de)捕(bu)集(ji)。

荷(he)電(dian)(dian)(dian)粉塵(chen)(chen)(chen)的(de)(de)捕集過程：在(zai)兩個曲率半(ban)徑(jing)相(xiang)差較大的(de)(de)金(jin)屬(shu)陽(yang)極(ji)(ji)和陰極(ji)(ji)上(shang)，通過高(gao)壓直流電(dian)(dian)(dian)，維持(chi)一(yi)個足(zu)以使氣體電(dian)(dian)(dian)離(li)的(de)(de)電(dian)(dian)(dian)場(chang)(chang)，氣體電(dian)(dian)(dian)離(li)后(hou)所產生(sheng)的(de)(de)電(dian)(dian)(dian)子：陰離(li)子和陽(yang)離(li)子，吸附在(zai)通過電(dian)(dian)(dian)場(chang)(chang)的(de)(de)粉塵(chen)(chen)(chen)上(shang)，使粉塵(chen)(chen)(chen)獲得電(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)極(ji)(ji)性不(bu)同(tong)的(de)(de)粉塵(chen)(chen)(chen)在(zai)電(dian)(dian)(dian)場(chang)(chang)力的(de)(de)作用下，分別向不(bu)同(tong)極(ji)(ji)性的(de)(de)電(dian)(dian)(dian)極(ji)(ji)運動，沉(chen)積在(zai)電(dian)(dian)(dian)極(ji)(ji)上(shang)，而達到(dao)粉塵(chen)(chen)(chen)和氣體分離(li)的(de)(de)目(mu)的(de)(de)。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)由兩大部分組成(cheng)：一(yi)部分是電(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)本體系統(tong)；另一(yi)部分是提供(gong)高壓直(zhi)流(liu)電(dian)(dian)(dian)的(de)(de)供(gong)電(dian)(dian)(dian)裝置和(he)低(di)壓自(zi)動控(kong)制系統(tong)。電(dian)(dian)(dian)除(chu)塵(chen)器(qi)(qi)的(de)(de)結(jie)構原理圖如圖1所示，高壓供(gong)電(dian)(dian)(dian)系統(tong)為升壓變壓器(qi)(qi)供(gong)電(dian)(dian)(dian)，除(chu)塵(chen)器(qi)(qi)集塵(chen)極(ji)接地(di)。低(di)壓電(dian)(dian)(dian)控(kong)制系統(tong)用來控(kong)制電(dian)(dian)(dian)磁振打錘、卸(xie)灰電(dian)(dian)(dian)極(ji)、輸灰電(dian)(dian)(dian)極(ji)以及幾(ji)個部件的(de)(de)溫度。