天津靜電除塵器廠家

靜電除塵器的(de)工(gong)作(zuo)原理是利用高壓電場使(shi)煙氣(qi)(qi)發生電離(li)，氣(qi)(qi)流中的(de)粉塵荷電在(zai)電場作(zuo)用下(xia)與氣(qi)(qi)流分離(li)。負極(ji)由(you)不同斷面形狀的(de)金屬導線制(zhi)成，叫放電電極(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(de)性能受粉塵(chen)(chen)性質、設備構造和(he)煙氣(qi)流速(su)等三(san)個因素的(de)影響(xiang)。粉塵(chen)(chen)的(de)比電(dian)(dian)阻是評價導電(dian)(dian)性的(de)指標，它對除塵(chen)(chen)效(xiao)率有直(zhi)接的(de)影響(xiang)。比電(dian)(dian)阻過(guo)(guo)低，塵(chen)(chen)粒(li)難以保持在(zai)集塵(chen)(chen)電(dian)(dian)極上，致使(shi)其重返氣(qi)流。比電(dian)(dian)阻過(guo)(guo)高，到達集塵(chen)(chen)電(dian)(dian)極的(de)塵(chen)(chen)粒(li)電(dian)(dian)荷不易(yi)放(fang)出，在(zai)塵(chen)(chen)層之間形成(cheng)電(dian)(dian)壓梯(ti)度會產生局部擊穿(chuan)和(he)放(fang)電(dian)(dian)現(xian)象。這些情況都會造成(cheng)除塵(chen)(chen)效(xiao)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(yun)行(xing)電壓需保持40一75kV乃至100kV以上。

工作原理

電(dian)除(chu)塵器的(de)(de)基本原理是利用電(dian)力捕(bu)集(ji)煙氣中的(de)(de)粉(fen)塵，主要包括以下四個(ge)相互有關的(de)(de)物理過程：（1）氣體的(de)(de)電(dian)離。（2）粉(fen)塵的(de)(de)荷(he)(he)電(dian)。（3）荷(he)(he)電(dian)粉(fen)塵向電(dian)極移動。（4）荷(he)(he)電(dian)粉(fen)塵的(de)(de)捕(bu)集(ji)。

荷電(dian)(dian)(dian)粉(fen)塵(chen)(chen)的(de)捕集過程：在(zai)(zai)兩(liang)個(ge)(ge)曲率(lv)半徑相差較(jiao)大的(de)金屬(shu)陽極(ji)(ji)和陰極(ji)(ji)上(shang)，通過高壓直流電(dian)(dian)(dian)，維持(chi)一(yi)個(ge)(ge)足(zu)以使(shi)氣(qi)(qi)體電(dian)(dian)(dian)離(li)(li)的(de)電(dian)(dian)(dian)場，氣(qi)(qi)體電(dian)(dian)(dian)離(li)(li)后所(suo)產生(sheng)的(de)電(dian)(dian)(dian)子(zi)：陰離(li)(li)子(zi)和陽離(li)(li)子(zi)，吸(xi)附在(zai)(zai)通過電(dian)(dian)(dian)場的(de)粉(fen)塵(chen)(chen)上(shang)，使(shi)粉(fen)塵(chen)(chen)獲得電(dian)(dian)(dian)荷。荷電(dian)(dian)(dian)極(ji)(ji)性不同的(de)粉(fen)塵(chen)(chen)在(zai)(zai)電(dian)(dian)(dian)場力的(de)作用下，分別向(xiang)不同極(ji)(ji)性的(de)電(dian)(dian)(dian)極(ji)(ji)運(yun)動，沉積在(zai)(zai)電(dian)(dian)(dian)極(ji)(ji)上(shang)，而達到(dao)粉(fen)塵(chen)(chen)和氣(qi)(qi)體分離(li)(li)的(de)目的(de)。

基本結構

靜(jing)電(dian)(dian)(dian)電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)由兩大部(bu)分組成：一(yi)部(bu)分是電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)本體系(xi)統(tong)；另(ling)一(yi)部(bu)分是提(ti)供(gong)高(gao)壓(ya)(ya)直流(liu)電(dian)(dian)(dian)的供(gong)電(dian)(dian)(dian)裝(zhuang)置和低壓(ya)(ya)自動控制(zhi)系(xi)統(tong)。電(dian)(dian)(dian)除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)的結構原理圖如圖1所示(shi)，高(gao)壓(ya)(ya)供(gong)電(dian)(dian)(dian)系(xi)統(tong)為升壓(ya)(ya)變壓(ya)(ya)器(qi)(qi)(qi)供(gong)電(dian)(dian)(dian)，除(chu)(chu)塵(chen)(chen)器(qi)(qi)(qi)集(ji)塵(chen)(chen)極(ji)接地。低壓(ya)(ya)電(dian)(dian)(dian)控制(zhi)系(xi)統(tong)用來控制(zhi)電(dian)(dian)(dian)磁振打錘、卸灰(hui)電(dian)(dian)(dian)極(ji)、輸灰(hui)電(dian)(dian)(dian)極(ji)以及幾(ji)個部(bu)件的溫(wen)度。