錦州靜電除塵器廠家

靜電除塵器的工(gong)作原理是利用高壓電(dian)(dian)場使煙(yan)氣(qi)發(fa)生電(dian)(dian)離，氣(qi)流中的粉塵荷電(dian)(dian)在電(dian)(dian)場作用下與氣(qi)流分離。負極(ji)由不同(tong)斷面形狀的金(jin)屬導(dao)線制成，叫放(fang)電(dian)(dian)電(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(xing)能受粉塵(chen)(chen)性(xing)質(zhi)、設(she)備(bei)構造和(he)煙(yan)氣流(liu)速等三(san)個因素(su)的影響。粉塵(chen)(chen)的比電阻(zu)是評價導電性(xing)的指標，它對除塵(chen)(chen)效率有直接的影響。比電阻(zu)過低(di)，塵(chen)(chen)粒難以保持(chi)在集(ji)塵(chen)(chen)電極(ji)上(shang)，致使其重返氣流(liu)。比電阻(zu)過高，到達集(ji)塵(chen)(chen)電極(ji)的塵(chen)(chen)粒電荷不易放(fang)(fang)出，在塵(chen)(chen)層之間(jian)形成電壓梯度會產生局部擊穿和(he)放(fang)(fang)電現象。這(zhe)些情況都會造成除塵(chen)(chen)效率下降(jiang)。

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(xu)保持40一75kV乃至100kV以上。

工作原理

電(dian)除塵器(qi)的(de)基本原理(li)(li)是利用電(dian)力捕(bu)集煙氣中(zhong)的(de)粉塵，主要包(bao)括以下(xia)四個相互有關的(de)物理(li)(li)過(guo)程：（1）氣體的(de)電(dian)離。（2）粉塵的(de)荷電(dian)。（3）荷電(dian)粉塵向電(dian)極移動。（4）荷電(dian)粉塵的(de)捕(bu)集。

荷電(dian)(dian)(dian)(dian)粉(fen)(fen)(fen)塵(chen)(chen)的(de)捕集過(guo)程：在(zai)兩個(ge)曲(qu)率半徑相差較(jiao)大的(de)金屬陽極(ji)(ji)(ji)(ji)和(he)(he)陰(yin)極(ji)(ji)(ji)(ji)上，通(tong)過(guo)高壓直流電(dian)(dian)(dian)(dian)，維持(chi)一(yi)個(ge)足以使(shi)氣(qi)體(ti)電(dian)(dian)(dian)(dian)離(li)(li)的(de)電(dian)(dian)(dian)(dian)場，氣(qi)體(ti)電(dian)(dian)(dian)(dian)離(li)(li)后所產生的(de)電(dian)(dian)(dian)(dian)子：陰(yin)離(li)(li)子和(he)(he)陽離(li)(li)子，吸附在(zai)通(tong)過(guo)電(dian)(dian)(dian)(dian)場的(de)粉(fen)(fen)(fen)塵(chen)(chen)上，使(shi)粉(fen)(fen)(fen)塵(chen)(chen)獲得電(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)性不(bu)同的(de)粉(fen)(fen)(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場力(li)的(de)作(zuo)用下，分別(bie)向不(bu)同極(ji)(ji)(ji)(ji)性的(de)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)運動，沉積在(zai)電(dian)(dian)(dian)(dian)極(ji)(ji)(ji)(ji)上，而(er)達到粉(fen)(fen)(fen)塵(chen)(chen)和(he)(he)氣(qi)體(ti)分離(li)(li)的(de)目的(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除(chu)塵(chen)器由兩大(da)部(bu)分組(zu)成：一部(bu)分是(shi)(shi)電(dian)(dian)除(chu)塵(chen)器本體系(xi)統；另(ling)一部(bu)分是(shi)(shi)提供高(gao)壓(ya)(ya)直流電(dian)(dian)的(de)(de)供電(dian)(dian)裝置和(he)低壓(ya)(ya)自動控(kong)制系(xi)統。電(dian)(dian)除(chu)塵(chen)器的(de)(de)結構(gou)原理圖如(ru)圖1所(suo)示(shi)，高(gao)壓(ya)(ya)供電(dian)(dian)系(xi)統為升壓(ya)(ya)變壓(ya)(ya)器供電(dian)(dian)，除(chu)塵(chen)器集塵(chen)極接地。低壓(ya)(ya)電(dian)(dian)控(kong)制系(xi)統用來控(kong)制電(dian)(dian)磁振打錘、卸灰電(dian)(dian)極、輸(shu)灰電(dian)(dian)極以及(ji)幾個部(bu)件的(de)(de)溫度。