蘭州靜電除塵器廠家

靜電除塵器的(de)(de)(de)工作原理(li)是利(li)用高壓電(dian)場使煙氣發(fa)生電(dian)離(li)，氣流(liu)中的(de)(de)(de)粉(fen)塵荷電(dian)在電(dian)場作用下與氣流(liu)分離(li)。負(fu)極由不同斷(duan)面(mian)形狀的(de)(de)(de)金屬導線制成(cheng)，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)能受粉塵(chen)(chen)性(xing)質、設備構(gou)造和煙氣流速等(deng)三個因素(su)的(de)影響。粉塵(chen)(chen)的(de)比(bi)電(dian)阻是(shi)評(ping)價(jia)導電(dian)性(xing)的(de)指標，它對除塵(chen)(chen)效率有(you)直接(jie)的(de)影響。比(bi)電(dian)阻過低(di)，塵(chen)(chen)粒難(nan)以保持在(zai)集塵(chen)(chen)電(dian)極(ji)上，致使其重返氣流。比(bi)電(dian)阻過高，到(dao)達集塵(chen)(chen)電(dian)極(ji)的(de)塵(chen)(chen)粒電(dian)荷(he)不易(yi)放出，在(zai)塵(chen)(chen)層(ceng)之間形成電(dian)壓梯度會產(chan)生局部擊穿和放電(dian)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(yun)行電(dian)壓需保持40一(yi)75kV乃至100kV以上。

工作原理

電(dian)除塵(chen)(chen)器的(de)(de)基本原理是利用電(dian)力捕(bu)集(ji)煙(yan)氣中的(de)(de)粉(fen)塵(chen)(chen)，主(zhu)要(yao)包括以下四個相互有關的(de)(de)物理過程：（1）氣體的(de)(de)電(dian)離。（2）粉(fen)塵(chen)(chen)的(de)(de)荷(he)(he)電(dian)。（3）荷(he)(he)電(dian)粉(fen)塵(chen)(chen)向電(dian)極移(yi)動。（4）荷(he)(he)電(dian)粉(fen)塵(chen)(chen)的(de)(de)捕(bu)集(ji)。

荷(he)電(dian)(dian)(dian)(dian)粉塵(chen)的(de)(de)(de)(de)捕集過程：在(zai)兩個曲率半徑相(xiang)差較大(da)的(de)(de)(de)(de)金屬陽極(ji)和(he)陰極(ji)上(shang)，通(tong)過高壓直(zhi)流電(dian)(dian)(dian)(dian)，維持一個足以(yi)使(shi)氣體(ti)電(dian)(dian)(dian)(dian)離(li)(li)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)場，氣體(ti)電(dian)(dian)(dian)(dian)離(li)(li)后(hou)所產(chan)生的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子(zi)(zi)：陰離(li)(li)子(zi)(zi)和(he)陽離(li)(li)子(zi)(zi)，吸(xi)附在(zai)通(tong)過電(dian)(dian)(dian)(dian)場的(de)(de)(de)(de)粉塵(chen)上(shang)，使(shi)粉塵(chen)獲得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極(ji)性(xing)不同(tong)的(de)(de)(de)(de)粉塵(chen)在(zai)電(dian)(dian)(dian)(dian)場力的(de)(de)(de)(de)作用下，分(fen)別向不同(tong)極(ji)性(xing)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)運(yun)動，沉(chen)積在(zai)電(dian)(dian)(dian)(dian)極(ji)上(shang)，而(er)達到粉塵(chen)和(he)氣體(ti)分(fen)離(li)(li)的(de)(de)(de)(de)目的(de)(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)由兩大(da)部(bu)分組成：一(yi)部(bu)分是(shi)電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)本(ben)體系(xi)(xi)統(tong)；另一(yi)部(bu)分是(shi)提供高(gao)壓(ya)直流(liu)電(dian)(dian)(dian)的(de)(de)供電(dian)(dian)(dian)裝置和(he)低(di)(di)壓(ya)自動(dong)控(kong)制(zhi)系(xi)(xi)統(tong)。電(dian)(dian)(dian)除(chu)塵(chen)(chen)器(qi)(qi)的(de)(de)結構(gou)原理圖如圖1所示，高(gao)壓(ya)供電(dian)(dian)(dian)系(xi)(xi)統(tong)為(wei)升(sheng)壓(ya)變壓(ya)器(qi)(qi)供電(dian)(dian)(dian)，除(chu)塵(chen)(chen)器(qi)(qi)集塵(chen)(chen)極(ji)接地(di)。低(di)(di)壓(ya)電(dian)(dian)(dian)控(kong)制(zhi)系(xi)(xi)統(tong)用來(lai)控(kong)制(zhi)電(dian)(dian)(dian)磁振(zhen)打錘、卸灰電(dian)(dian)(dian)極(ji)、輸(shu)灰電(dian)(dian)(dian)極(ji)以及幾(ji)個部(bu)件的(de)(de)溫度。