臺州靜電除塵器廠家

靜電除塵器的工(gong)作原理(li)是利用高壓電場使煙氣(qi)(qi)發生電離(li)，氣(qi)(qi)流中的粉(fen)塵荷電在電場作用下與(yu)氣(qi)(qi)流分(fen)離(li)。負極(ji)(ji)由不同斷(duan)面(mian)形狀的金屬導線制(zhi)成，叫(jiao)放電電極(ji)(ji)。

正極由不同幾何形狀的金屬板制成，叫集塵電極。靜電除塵器廠家的性能(neng)受粉塵(chen)(chen)性質、設備構造(zao)和煙氣流速等三個(ge)因素的影響。粉塵(chen)(chen)的比(bi)電(dian)阻(zu)(zu)是(shi)評價導電(dian)性的指標，它對除(chu)塵(chen)(chen)效率有(you)直接的影響。比(bi)電(dian)阻(zu)(zu)過(guo)低，塵(chen)(chen)粒難以(yi)保持在(zai)集塵(chen)(chen)電(dian)極上(shang)，致使其重(zhong)返氣流。比(bi)電(dian)阻(zu)(zu)過(guo)高，到達集塵(chen)(chen)電(dian)極的塵(chen)(chen)粒電(dian)荷不易放(fang)出，在(zai)塵(chen)(chen)層之間(jian)形成(cheng)電(dian)壓梯度會(hui)產(chan)生局部擊穿和放(fang)電(dian)現象。這些(xie)情況(kuang)都會(hui)造(zao)成(cheng)除(chu)塵(chen)(chen)效率下降。

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(yun)行電壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)除塵(chen)(chen)器(qi)的基本原理是利用電(dian)(dian)力(li)捕(bu)集(ji)煙氣中的粉(fen)塵(chen)(chen)，主要(yao)包括以下四個相互(hu)有關的物理過程：（1）氣體的電(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)極移動(dong)。（4）荷電(dian)(dian)粉(fen)塵(chen)(chen)的捕(bu)集(ji)。

荷電(dian)(dian)(dian)(dian)(dian)粉(fen)塵的(de)捕集過程：在兩個(ge)曲率半徑相差較大(da)的(de)金(jin)屬陽(yang)極和(he)(he)陰極上，通過高壓直流電(dian)(dian)(dian)(dian)(dian)，維(wei)持一個(ge)足以使氣體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離(li)的(de)電(dian)(dian)(dian)(dian)(dian)場(chang)，氣體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)(dian)離(li)后(hou)所產生的(de)電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)(zi)：陰離(li)子(zi)(zi)(zi)和(he)(he)陽(yang)離(li)子(zi)(zi)(zi)，吸(xi)附在通過電(dian)(dian)(dian)(dian)(dian)場(chang)的(de)粉(fen)塵上，使粉(fen)塵獲(huo)得(de)電(dian)(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)(dian)極性不同的(de)粉(fen)塵在電(dian)(dian)(dian)(dian)(dian)場(chang)力的(de)作用下(xia)，分別向(xiang)不同極性的(de)電(dian)(dian)(dian)(dian)(dian)極運動，沉積在電(dian)(dian)(dian)(dian)(dian)極上，而達(da)到(dao)粉(fen)塵和(he)(he)氣體(ti)(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)塵器由兩(liang)大部(bu)(bu)分(fen)(fen)組成：一部(bu)(bu)分(fen)(fen)是電(dian)(dian)(dian)除(chu)塵器本(ben)體系(xi)統(tong)(tong)；另一部(bu)(bu)分(fen)(fen)是提供(gong)高壓(ya)直流電(dian)(dian)(dian)的供(gong)電(dian)(dian)(dian)裝置和低壓(ya)自動控制系(xi)統(tong)(tong)。電(dian)(dian)(dian)除(chu)塵器的結構原理圖如圖1所示(shi)，高壓(ya)供(gong)電(dian)(dian)(dian)系(xi)統(tong)(tong)為升(sheng)壓(ya)變壓(ya)器供(gong)電(dian)(dian)(dian)，除(chu)塵器集(ji)塵極(ji)接(jie)地。低壓(ya)電(dian)(dian)(dian)控制系(xi)統(tong)(tong)用來控制電(dian)(dian)(dian)磁振(zhen)打錘、卸灰(hui)電(dian)(dian)(dian)極(ji)、輸(shu)灰(hui)電(dian)(dian)(dian)極(ji)以及幾個部(bu)(bu)件的溫度。