青海靜電除塵器廠家

靜電除塵器的工作(zuo)(zuo)原(yuan)理(li)是利(li)用高壓電(dian)(dian)(dian)場(chang)使煙氣(qi)發生電(dian)(dian)(dian)離，氣(qi)流(liu)中的粉塵荷電(dian)(dian)(dian)在電(dian)(dian)(dian)場(chang)作(zuo)(zuo)用下與氣(qi)流(liu)分離。負極(ji)由不同斷面形狀的金屬導線制成，叫放電(dian)(dian)(dian)電(dian)(dian)(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能(neng)受粉(fen)塵(chen)性質(zhi)、設備構造和煙氣流(liu)速等三個因素的影響。粉(fen)塵(chen)的比(bi)電(dian)阻是評(ping)價導電(dian)性的指標，它(ta)對除(chu)塵(chen)效率有直接的影響。比(bi)電(dian)阻過低，塵(chen)粒難以保持在集(ji)塵(chen)電(dian)極上，致使其(qi)重(zhong)返氣流(liu)。比(bi)電(dian)阻過高，到(dao)達集(ji)塵(chen)電(dian)極的塵(chen)粒電(dian)荷不易放(fang)出，在塵(chen)層(ceng)之間形成電(dian)壓梯度會產生局部擊穿和放(fang)電(dian)現(xian)象。這些情況都會造成除(chu)塵(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，靜電除塵器運行電(dian)壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)(dian)除塵器的基本(ben)原理是利用電(dian)(dian)力捕(bu)集煙氣中的粉(fen)塵，主要包(bao)括(kuo)以下(xia)四個相互(hu)有關的物理過程：（1）氣體的電(dian)(dian)離。（2）粉(fen)塵的荷(he)電(dian)(dian)。（3）荷(he)電(dian)(dian)粉(fen)塵向(xiang)電(dian)(dian)極移動。（4）荷(he)電(dian)(dian)粉(fen)塵的捕(bu)集。

荷(he)(he)電(dian)(dian)粉(fen)(fen)(fen)塵的(de)捕集過(guo)程：在兩個(ge)曲率半(ban)徑相(xiang)差較大的(de)金屬陽(yang)極(ji)和(he)陰極(ji)上(shang)，通過(guo)高(gao)壓直(zhi)流電(dian)(dian)，維(wei)持一個(ge)足以使(shi)氣體電(dian)(dian)離(li)的(de)電(dian)(dian)場(chang)(chang)，氣體電(dian)(dian)離(li)后所(suo)產生的(de)電(dian)(dian)子：陰離(li)子和(he)陽(yang)離(li)子，吸附在通過(guo)電(dian)(dian)場(chang)(chang)的(de)粉(fen)(fen)(fen)塵上(shang)，使(shi)粉(fen)(fen)(fen)塵獲得電(dian)(dian)荷(he)(he)。荷(he)(he)電(dian)(dian)極(ji)性(xing)不同(tong)的(de)粉(fen)(fen)(fen)塵在電(dian)(dian)場(chang)(chang)力的(de)作用下，分別向不同(tong)極(ji)性(xing)的(de)電(dian)(dian)極(ji)運動，沉積在電(dian)(dian)極(ji)上(shang)，而達(da)到粉(fen)(fen)(fen)塵和(he)氣體分離(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)由兩(liang)大部(bu)(bu)分(fen)(fen)組成(cheng)：一部(bu)(bu)分(fen)(fen)是電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)本體系(xi)(xi)統；另一部(bu)(bu)分(fen)(fen)是提供(gong)高(gao)壓(ya)(ya)直流電(dian)(dian)(dian)的供(gong)電(dian)(dian)(dian)裝置和低壓(ya)(ya)自動控制(zhi)(zhi)系(xi)(xi)統。電(dian)(dian)(dian)除(chu)(chu)塵(chen)器(qi)的結構原理(li)圖如圖1所示，高(gao)壓(ya)(ya)供(gong)電(dian)(dian)(dian)系(xi)(xi)統為升壓(ya)(ya)變壓(ya)(ya)器(qi)供(gong)電(dian)(dian)(dian)，除(chu)(chu)塵(chen)器(qi)集(ji)塵(chen)極(ji)接地(di)。低壓(ya)(ya)電(dian)(dian)(dian)控制(zhi)(zhi)系(xi)(xi)統用來控制(zhi)(zhi)電(dian)(dian)(dian)磁振打(da)錘(chui)、卸灰(hui)電(dian)(dian)(dian)極(ji)、輸灰(hui)電(dian)(dian)(dian)極(ji)以及幾個部(bu)(bu)件的溫度(du)。