湖北靜電除塵器廠家

靜電除塵器的工作原理(li)是利(li)用高壓電(dian)場使煙(yan)氣(qi)發生電(dian)離，氣(qi)流中的粉塵荷電(dian)在電(dian)場作用下(xia)與氣(qi)流分離。負極(ji)由不(bu)同斷面形狀的金屬導線制成，叫(jiao)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。靜電除塵器廠家的性(xing)能受粉塵性(xing)質、設備構造和煙氣(qi)流速等三個因素的影響。粉塵的比電(dian)(dian)(dian)阻是評價導(dao)電(dian)(dian)(dian)性(xing)的指標，它對(dui)除塵效率有(you)直(zhi)接的影響。比電(dian)(dian)(dian)阻過低，塵粒難以(yi)保(bao)持在(zai)集塵電(dian)(dian)(dian)極上，致使其重返氣(qi)流。比電(dian)(dian)(dian)阻過高，到達(da)集塵電(dian)(dian)(dian)極的塵粒電(dian)(dian)(dian)荷不易放(fang)(fang)出，在(zai)塵層之間形成電(dian)(dian)(dian)壓梯度會產生局部擊穿和放(fang)(fang)電(dian)(dian)(dian)現象。這些情況都會造成除塵效率下(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(xing)電壓需保持40一75kV乃至(zhi)100kV以上。

工作原理

電(dian)(dian)除塵(chen)器的(de)(de)(de)基(ji)本(ben)原(yuan)理是利(li)用電(dian)(dian)力捕集煙氣(qi)(qi)中的(de)(de)(de)粉塵(chen)，主要包括(kuo)以下四個相互有關(guan)的(de)(de)(de)物理過程：（1）氣(qi)(qi)體的(de)(de)(de)電(dian)(dian)離。（2）粉塵(chen)的(de)(de)(de)荷電(dian)(dian)。（3）荷電(dian)(dian)粉塵(chen)向電(dian)(dian)極移(yi)動。（4）荷電(dian)(dian)粉塵(chen)的(de)(de)(de)捕集。

荷(he)(he)電(dian)(dian)(dian)(dian)粉塵(chen)的捕集(ji)過程：在(zai)兩個曲(qu)率半徑相差較大(da)的金屬陽(yang)極(ji)和陰(yin)極(ji)上，通過高壓直流電(dian)(dian)(dian)(dian)，維(wei)持一個足以使(shi)氣體電(dian)(dian)(dian)(dian)離(li)的電(dian)(dian)(dian)(dian)場，氣體電(dian)(dian)(dian)(dian)離(li)后所(suo)產生的電(dian)(dian)(dian)(dian)子(zi)：陰(yin)離(li)子(zi)和陽(yang)離(li)子(zi)，吸附在(zai)通過電(dian)(dian)(dian)(dian)場的粉塵(chen)上，使(shi)粉塵(chen)獲得電(dian)(dian)(dian)(dian)荷(he)(he)。荷(he)(he)電(dian)(dian)(dian)(dian)極(ji)性不(bu)同的粉塵(chen)在(zai)電(dian)(dian)(dian)(dian)場力(li)的作用下，分(fen)別向(xiang)不(bu)同極(ji)性的電(dian)(dian)(dian)(dian)極(ji)運動，沉積(ji)在(zai)電(dian)(dian)(dian)(dian)極(ji)上，而(er)達(da)到粉塵(chen)和氣體分(fen)離(li)的目的。

基本結構

靜電(dian)電(dian)除塵(chen)(chen)(chen)器(qi)(qi)(qi)由(you)兩大(da)部(bu)分(fen)組成(cheng)：一部(bu)分(fen)是(shi)電(dian)除塵(chen)(chen)(chen)器(qi)(qi)(qi)本體系(xi)統；另一部(bu)分(fen)是(shi)提供高(gao)壓(ya)(ya)直流(liu)電(dian)的(de)(de)供電(dian)裝置和低(di)壓(ya)(ya)自動控(kong)制(zhi)系(xi)統。電(dian)除塵(chen)(chen)(chen)器(qi)(qi)(qi)的(de)(de)結(jie)構原理圖如圖1所示，高(gao)壓(ya)(ya)供電(dian)系(xi)統為升壓(ya)(ya)變壓(ya)(ya)器(qi)(qi)(qi)供電(dian)，除塵(chen)(chen)(chen)器(qi)(qi)(qi)集(ji)塵(chen)(chen)(chen)極(ji)接地。低(di)壓(ya)(ya)電(dian)控(kong)制(zhi)系(xi)統用來控(kong)制(zhi)電(dian)磁振打錘、卸灰電(dian)極(ji)、輸灰電(dian)極(ji)以及幾個部(bu)件的(de)(de)溫(wen)度。