保定靜電除塵器廠家

靜電除塵器的(de)工作(zuo)原理是(shi)利用(yong)高壓電(dian)場(chang)使煙氣發生電(dian)離，氣流(liu)中的(de)粉塵荷電(dian)在(zai)電(dian)場(chang)作(zuo)用(yong)下與氣流(liu)分離。負極由不同斷面形(xing)狀的(de)金屬(shu)導線制成，叫放電(dian)電(dian)極。

正極由不同幾何形狀的金屬板制成，叫集塵電極。靜電除塵器廠家的性能受粉(fen)塵性質、設備構(gou)造和(he)煙氣流(liu)速等三個因素(su)的影(ying)響。粉(fen)塵的比(bi)電(dian)(dian)(dian)(dian)阻(zu)是評價(jia)導電(dian)(dian)(dian)(dian)性的指標，它對除塵效(xiao)率有直(zhi)接的影(ying)響。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過低，塵粒難以保(bao)持在(zai)集(ji)塵電(dian)(dian)(dian)(dian)極(ji)(ji)上，致使(shi)其重返氣流(liu)。比(bi)電(dian)(dian)(dian)(dian)阻(zu)過高，到達(da)集(ji)塵電(dian)(dian)(dian)(dian)極(ji)(ji)的塵粒電(dian)(dian)(dian)(dian)荷不(bu)易放出，在(zai)塵層之間形成(cheng)(cheng)電(dian)(dian)(dian)(dian)壓梯(ti)度會(hui)產(chan)生局部擊穿(chuan)和(he)放電(dian)(dian)(dian)(dian)現象。這些情況(kuang)都會(hui)造成(cheng)(cheng)除塵效(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(nai)至(zhi)100kV以上。

工作原理

電(dian)(dian)除塵(chen)(chen)器(qi)的(de)(de)基本(ben)原(yuan)理是利用(yong)電(dian)(dian)力捕(bu)集煙氣中(zhong)的(de)(de)粉塵(chen)(chen)，主要(yao)包括以下四個(ge)相(xiang)互有(you)關的(de)(de)物理過程：（1）氣體的(de)(de)電(dian)(dian)離。（2）粉塵(chen)(chen)的(de)(de)荷電(dian)(dian)。（3）荷電(dian)(dian)粉塵(chen)(chen)向(xiang)電(dian)(dian)極移動。（4）荷電(dian)(dian)粉塵(chen)(chen)的(de)(de)捕(bu)集。

荷電(dian)(dian)(dian)(dian)粉(fen)塵的(de)捕集過(guo)程：在兩(liang)個曲率(lv)半徑相差較大(da)的(de)金屬陽極(ji)和(he)陰(yin)極(ji)上，通過(guo)高壓直(zhi)流(liu)電(dian)(dian)(dian)(dian)，維持(chi)一個足以使氣(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)的(de)電(dian)(dian)(dian)(dian)場，氣(qi)體(ti)(ti)電(dian)(dian)(dian)(dian)離(li)后所產(chan)生的(de)電(dian)(dian)(dian)(dian)子：陰(yin)離(li)子和(he)陽離(li)子，吸附(fu)在通過(guo)電(dian)(dian)(dian)(dian)場的(de)粉(fen)塵上，使粉(fen)塵獲得電(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)極(ji)性不(bu)同的(de)粉(fen)塵在電(dian)(dian)(dian)(dian)場力的(de)作用下，分別向不(bu)同極(ji)性的(de)電(dian)(dian)(dian)(dian)極(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)上，而(er)達到粉(fen)塵和(he)氣(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)(chu)塵(chen)器(qi)(qi)(qi)由兩大部(bu)(bu)(bu)分組成：一部(bu)(bu)(bu)分是電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)(qi)本體系(xi)統；另一部(bu)(bu)(bu)分是提(ti)供(gong)高壓(ya)(ya)直流電(dian)(dian)(dian)的供(gong)電(dian)(dian)(dian)裝置和低壓(ya)(ya)自動控(kong)制系(xi)統。電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)(qi)(qi)的結構原理圖如圖1所示，高壓(ya)(ya)供(gong)電(dian)(dian)(dian)系(xi)統為升(sheng)壓(ya)(ya)變壓(ya)(ya)器(qi)(qi)(qi)供(gong)電(dian)(dian)(dian)，除(chu)(chu)塵(chen)器(qi)(qi)(qi)集塵(chen)極(ji)接地(di)。低壓(ya)(ya)電(dian)(dian)(dian)控(kong)制系(xi)統用來(lai)控(kong)制電(dian)(dian)(dian)磁(ci)振(zhen)打(da)錘(chui)、卸灰電(dian)(dian)(dian)極(ji)、輸灰電(dian)(dian)(dian)極(ji)以及幾個部(bu)(bu)(bu)件(jian)的溫度。