大理靜電除塵器廠家

靜電除塵器的(de)工作原理是利用(yong)(yong)高壓電場使煙(yan)氣(qi)發(fa)生(sheng)電離，氣(qi)流中的(de)粉塵荷電在(zai)電場作用(yong)(yong)下與(yu)氣(qi)流分離。負極由不同斷面形狀(zhuang)的(de)金屬導線制成，叫(jiao)放電電極。

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)能受粉塵性(xing)質、設備構(gou)造和煙氣流(liu)速(su)等三個(ge)因(yin)素(su)的(de)影響(xiang)。粉塵的(de)比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻是評(ping)價(jia)導電(dian)(dian)(dian)(dian)(dian)(dian)性(xing)的(de)指標，它對除塵效(xiao)率(lv)有直(zhi)接的(de)影響(xiang)。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)低，塵粒難(nan)以保持在集(ji)塵電(dian)(dian)(dian)(dian)(dian)(dian)極上(shang)，致使其(qi)重返氣流(liu)。比(bi)電(dian)(dian)(dian)(dian)(dian)(dian)阻過(guo)高，到達集(ji)塵電(dian)(dian)(dian)(dian)(dian)(dian)極的(de)塵粒電(dian)(dian)(dian)(dian)(dian)(dian)荷不易放出，在塵層之間形成電(dian)(dian)(dian)(dian)(dian)(dian)壓梯度(du)會產(chan)生局部擊穿和放電(dian)(dian)(dian)(dian)(dian)(dian)現(xian)象。這(zhe)些(xie)情況都會造成除塵效(xiao)率(lv)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，靜電除塵器運行電壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)除塵器的(de)(de)(de)(de)基本(ben)原理是利用電(dian)力捕集煙(yan)氣中的(de)(de)(de)(de)粉塵，主要包括(kuo)以下四(si)個相互(hu)有關的(de)(de)(de)(de)物理過程：（1）氣體的(de)(de)(de)(de)電(dian)離(li)。（2）粉塵的(de)(de)(de)(de)荷(he)電(dian)。（3）荷(he)電(dian)粉塵向(xiang)電(dian)極移動。（4）荷(he)電(dian)粉塵的(de)(de)(de)(de)捕集。

荷電(dian)(dian)(dian)(dian)粉塵(chen)的(de)(de)(de)(de)捕集(ji)過程：在兩個曲率半(ban)徑相差較(jiao)大的(de)(de)(de)(de)金屬陽極(ji)和(he)陰極(ji)上(shang)，通(tong)過高(gao)壓直流電(dian)(dian)(dian)(dian)，維持一個足以(yi)使(shi)氣(qi)體電(dian)(dian)(dian)(dian)離(li)(li)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)場(chang)，氣(qi)體電(dian)(dian)(dian)(dian)離(li)(li)后所產生的(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)，吸附(fu)在通(tong)過電(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)粉塵(chen)上(shang)，使(shi)粉塵(chen)獲(huo)得電(dian)(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)(dian)極(ji)性(xing)不(bu)(bu)同的(de)(de)(de)(de)粉塵(chen)在電(dian)(dian)(dian)(dian)場(chang)力的(de)(de)(de)(de)作用下(xia)，分別向不(bu)(bu)同極(ji)性(xing)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)極(ji)運動，沉積在電(dian)(dian)(dian)(dian)極(ji)上(shang)，而達(da)到(dao)粉塵(chen)和(he)氣(qi)體分離(li)(li)的(de)(de)(de)(de)目的(de)(de)(de)(de)。

基本結構

靜電電除(chu)(chu)塵器由兩大部(bu)分組成：一(yi)部(bu)分是(shi)電除(chu)(chu)塵器本(ben)體系(xi)(xi)統(tong)；另一(yi)部(bu)分是(shi)提供(gong)(gong)高(gao)(gao)壓(ya)(ya)直流電的供(gong)(gong)電裝置和低(di)壓(ya)(ya)自動控(kong)(kong)制系(xi)(xi)統(tong)。電除(chu)(chu)塵器的結構原理圖如圖1所(suo)示，高(gao)(gao)壓(ya)(ya)供(gong)(gong)電系(xi)(xi)統(tong)為升壓(ya)(ya)變(bian)壓(ya)(ya)器供(gong)(gong)電，除(chu)(chu)塵器集塵極接地。低(di)壓(ya)(ya)電控(kong)(kong)制系(xi)(xi)統(tong)用(yong)來控(kong)(kong)制電磁振(zhen)打(da)錘、卸灰電極、輸(shu)灰電極以及幾(ji)個部(bu)件的溫(wen)度(du)。