寧德靜電除塵器廠家

靜電除塵器的工作(zuo)原理是利用高壓電(dian)(dian)場使煙氣發(fa)生電(dian)(dian)離，氣流中(zhong)的粉(fen)塵荷電(dian)(dian)在電(dian)(dian)場作(zuo)用下與氣流分離。負極(ji)(ji)由不同斷面(mian)形狀的金屬導線制(zhi)成，叫(jiao)放(fang)電(dian)(dian)電(dian)(dian)極(ji)(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)性能受粉(fen)塵(chen)(chen)(chen)性質、設備構(gou)造和(he)煙(yan)氣流速等三個因素的(de)影(ying)(ying)響(xiang)。粉(fen)塵(chen)(chen)(chen)的(de)比(bi)(bi)電(dian)(dian)(dian)阻是評價導電(dian)(dian)(dian)性的(de)指標，它對(dui)除塵(chen)(chen)(chen)效(xiao)(xiao)率(lv)(lv)有直接(jie)的(de)影(ying)(ying)響(xiang)。比(bi)(bi)電(dian)(dian)(dian)阻過低(di)，塵(chen)(chen)(chen)粒難以保持在集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)極(ji)上，致使(shi)其重返氣流。比(bi)(bi)電(dian)(dian)(dian)阻過高，到達集(ji)塵(chen)(chen)(chen)電(dian)(dian)(dian)極(ji)的(de)塵(chen)(chen)(chen)粒電(dian)(dian)(dian)荷(he)不(bu)易放出，在塵(chen)(chen)(chen)層之間形(xing)成(cheng)(cheng)電(dian)(dian)(dian)壓梯(ti)度(du)會產生局部擊(ji)穿和(he)放電(dian)(dian)(dian)現(xian)象。這(zhe)些(xie)情(qing)況都會造成(cheng)(cheng)除塵(chen)(chen)(chen)效(xiao)(xiao)率(lv)(lv)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40一75kV乃至100kV以(yi)上。

工作原理

電(dian)(dian)除塵(chen)(chen)器的基(ji)本(ben)原理(li)是利用電(dian)(dian)力(li)捕集(ji)煙氣中的粉(fen)塵(chen)(chen)，主要包括以(yi)下四個(ge)相互有關(guan)的物理(li)過程：（1）氣體(ti)的電(dian)(dian)離。（2）粉(fen)塵(chen)(chen)的荷電(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)的捕集(ji)。

荷(he)電(dian)(dian)(dian)粉(fen)塵的捕(bu)集過程：在(zai)兩個曲率半(ban)徑相差較大的金屬陽(yang)極(ji)和陰極(ji)上(shang)(shang)，通過高壓直(zhi)流電(dian)(dian)(dian)，維持一(yi)個足以使(shi)氣(qi)體電(dian)(dian)(dian)離(li)的電(dian)(dian)(dian)場(chang)(chang)，氣(qi)體電(dian)(dian)(dian)離(li)后所(suo)產生的電(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)的粉(fen)塵上(shang)(shang)，使(shi)粉(fen)塵獲(huo)得(de)電(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)極(ji)性(xing)不同(tong)的粉(fen)塵在(zai)電(dian)(dian)(dian)場(chang)(chang)力(li)的作用下，分(fen)別(bie)向(xiang)不同(tong)極(ji)性(xing)的電(dian)(dian)(dian)極(ji)運動，沉積在(zai)電(dian)(dian)(dian)極(ji)上(shang)(shang)，而達(da)到粉(fen)塵和氣(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(liang)大部(bu)分(fen)組成：一部(bu)分(fen)是電(dian)(dian)(dian)除塵(chen)(chen)器(qi)本(ben)體系(xi)統(tong)；另一部(bu)分(fen)是提供高壓(ya)(ya)直流電(dian)(dian)(dian)的(de)供電(dian)(dian)(dian)裝置和低壓(ya)(ya)自(zi)動(dong)控制系(xi)統(tong)。電(dian)(dian)(dian)除塵(chen)(chen)器(qi)的(de)結構原理圖如圖1所示，高壓(ya)(ya)供電(dian)(dian)(dian)系(xi)統(tong)為升壓(ya)(ya)變壓(ya)(ya)器(qi)供電(dian)(dian)(dian)，除塵(chen)(chen)器(qi)集塵(chen)(chen)極接地。低壓(ya)(ya)電(dian)(dian)(dian)控制系(xi)統(tong)用來(lai)控制電(dian)(dian)(dian)磁振(zhen)打錘(chui)、卸灰(hui)電(dian)(dian)(dian)極、輸灰(hui)電(dian)(dian)(dian)極以及(ji)幾個部(bu)件的(de)溫度。