威海靜電除塵器廠家

靜電除塵器的工作(zuo)原理是利用(yong)高(gao)壓(ya)電(dian)場使煙氣(qi)發生電(dian)離，氣(qi)流中的粉塵荷(he)電(dian)在電(dian)場作(zuo)用(yong)下與氣(qi)流分離。負(fu)極由不(bu)同斷(duan)面形(xing)狀的金屬導(dao)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(de)性(xing)(xing)能受粉塵(chen)(chen)性(xing)(xing)質、設備(bei)構造和(he)煙(yan)氣流(liu)速(su)等三個因(yin)素的(de)影響。粉塵(chen)(chen)的(de)比電(dian)(dian)阻是評(ping)價(jia)導(dao)電(dian)(dian)性(xing)(xing)的(de)指(zhi)標，它對除塵(chen)(chen)效率(lv)有直接的(de)影響。比電(dian)(dian)阻過低(di)，塵(chen)(chen)粒難(nan)以保持在集(ji)塵(chen)(chen)電(dian)(dian)極上，致使其重返(fan)氣流(liu)。比電(dian)(dian)阻過高，到(dao)達(da)集(ji)塵(chen)(chen)電(dian)(dian)極的(de)塵(chen)(chen)粒電(dian)(dian)荷不易(yi)放出，在塵(chen)(chen)層之間形成(cheng)電(dian)(dian)壓(ya)梯度會產生局(ju)部(bu)擊穿和(he)放電(dian)(dian)現象。這些情(qing)況都會造成(cheng)除塵(chen)(chen)效率(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持(chi)40一75kV乃(nai)至100kV以上。

工作原理

電(dian)(dian)除(chu)塵(chen)器(qi)的(de)基本原理(li)是利用電(dian)(dian)力(li)捕(bu)集煙氣(qi)中的(de)粉塵(chen)，主(zhu)要包(bao)括(kuo)以下四個相互有關的(de)物理(li)過程(cheng)：（1）氣(qi)體的(de)電(dian)(dian)離。（2）粉塵(chen)的(de)荷(he)(he)電(dian)(dian)。（3）荷(he)(he)電(dian)(dian)粉塵(chen)向電(dian)(dian)極移動。（4）荷(he)(he)電(dian)(dian)粉塵(chen)的(de)捕(bu)集。

荷(he)電(dian)(dian)(dian)粉(fen)塵(chen)的捕集過(guo)程：在兩個(ge)曲率半徑相(xiang)差較大的金屬陽極和(he)陰極上，通(tong)過(guo)高壓(ya)直流電(dian)(dian)(dian)，維持一(yi)個(ge)足以使氣體(ti)(ti)電(dian)(dian)(dian)離(li)(li)的電(dian)(dian)(dian)場(chang)(chang)，氣體(ti)(ti)電(dian)(dian)(dian)離(li)(li)后所產生的電(dian)(dian)(dian)子：陰離(li)(li)子和(he)陽離(li)(li)子，吸附在通(tong)過(guo)電(dian)(dian)(dian)場(chang)(chang)的粉(fen)塵(chen)上，使粉(fen)塵(chen)獲得電(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)極性(xing)不同(tong)的粉(fen)塵(chen)在電(dian)(dian)(dian)場(chang)(chang)力(li)的作用下，分別向不同(tong)極性(xing)的電(dian)(dian)(dian)極運動，沉積在電(dian)(dian)(dian)極上，而達到(dao)粉(fen)塵(chen)和(he)氣體(ti)(ti)分離(li)(li)的目(mu)的。

基本結構

靜電(dian)(dian)電(dian)(dian)除塵器由兩大部(bu)分(fen)組成：一部(bu)分(fen)是(shi)電(dian)(dian)除塵器本(ben)體系統(tong)；另一部(bu)分(fen)是(shi)提(ti)供(gong)高壓直流(liu)電(dian)(dian)的供(gong)電(dian)(dian)裝(zhuang)置和低(di)壓自動控(kong)制系統(tong)。電(dian)(dian)除塵器的結構(gou)原理圖如圖1所示，高壓供(gong)電(dian)(dian)系統(tong)為升壓變壓器供(gong)電(dian)(dian)，除塵器集塵極(ji)(ji)接地。低(di)壓電(dian)(dian)控(kong)制系統(tong)用來(lai)控(kong)制電(dian)(dian)磁振打錘、卸(xie)灰電(dian)(dian)極(ji)(ji)、輸(shu)灰電(dian)(dian)極(ji)(ji)以及幾(ji)個部(bu)件的溫度。