濟南靜電除塵器廠家

靜電除塵器的工(gong)作(zuo)原理是利用高壓(ya)電場使煙氣(qi)發生電離，氣(qi)流(liu)中的粉塵(chen)荷電在電場作(zuo)用下與氣(qi)流(liu)分離。負(fu)極由不(bu)同斷面形狀的金屬(shu)導線制成，叫放電電極。

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)性能受粉塵(chen)性質(zhi)、設備構造(zao)和煙氣流(liu)速等三(san)個因素(su)的(de)影響。粉塵(chen)的(de)比(bi)電(dian)(dian)阻(zu)是評價導電(dian)(dian)性的(de)指標，它對除(chu)塵(chen)效率有直接(jie)的(de)影響。比(bi)電(dian)(dian)阻(zu)過低，塵(chen)粒(li)難以保持在(zai)集塵(chen)電(dian)(dian)極(ji)上(shang)，致(zhi)使其重返氣流(liu)。比(bi)電(dian)(dian)阻(zu)過高，到達集塵(chen)電(dian)(dian)極(ji)的(de)塵(chen)粒(li)電(dian)(dian)荷不(bu)易放出，在(zai)塵(chen)層之間形成(cheng)電(dian)(dian)壓梯度會產生局部擊(ji)穿和放電(dian)(dian)現象(xiang)。這些情(qing)況都會造(zao)成(cheng)除(chu)塵(chen)效率下(xia)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(xu)保持40一75kV乃至100kV以(yi)上。

工作原理

電(dian)(dian)(dian)除塵器的基本原理(li)是利用電(dian)(dian)(dian)力捕集煙氣中(zhong)的粉(fen)塵，主要包括以下四個相互有關(guan)的物理(li)過程(cheng)：（1）氣體(ti)的電(dian)(dian)(dian)離。（2）粉(fen)塵的荷電(dian)(dian)(dian)。（3）荷電(dian)(dian)(dian)粉(fen)塵向電(dian)(dian)(dian)極移(yi)動。（4）荷電(dian)(dian)(dian)粉(fen)塵的捕集。

荷(he)電(dian)粉塵(chen)(chen)的(de)(de)(de)捕集過程：在(zai)兩個曲率(lv)半徑相差較大的(de)(de)(de)金屬陽極(ji)和(he)陰(yin)極(ji)上(shang)，通過高壓直流電(dian)，維持一個足以使氣體電(dian)離的(de)(de)(de)電(dian)場(chang)，氣體電(dian)離后所產(chan)生的(de)(de)(de)電(dian)子：陰(yin)離子和(he)陽離子，吸附在(zai)通過電(dian)場(chang)的(de)(de)(de)粉塵(chen)(chen)上(shang)，使粉塵(chen)(chen)獲得電(dian)荷(he)。荷(he)電(dian)極(ji)性(xing)不同的(de)(de)(de)粉塵(chen)(chen)在(zai)電(dian)場(chang)力的(de)(de)(de)作用(yong)下，分(fen)別向不同極(ji)性(xing)的(de)(de)(de)電(dian)極(ji)運(yun)動，沉積在(zai)電(dian)極(ji)上(shang)，而達(da)到粉塵(chen)(chen)和(he)氣體分(fen)離的(de)(de)(de)目的(de)(de)(de)。

基本結構

靜電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)除塵器由兩(liang)大部(bu)分組成：一(yi)部(bu)分是(shi)電(dian)(dian)(dian)(dian)除塵器本(ben)體系(xi)統；另一(yi)部(bu)分是(shi)提供(gong)(gong)高壓(ya)(ya)直流電(dian)(dian)(dian)(dian)的供(gong)(gong)電(dian)(dian)(dian)(dian)裝置(zhi)和低(di)壓(ya)(ya)自動(dong)控(kong)制系(xi)統。電(dian)(dian)(dian)(dian)除塵器的結(jie)構原理(li)圖如圖1所示，高壓(ya)(ya)供(gong)(gong)電(dian)(dian)(dian)(dian)系(xi)統為升(sheng)壓(ya)(ya)變壓(ya)(ya)器供(gong)(gong)電(dian)(dian)(dian)(dian)，除塵器集塵極(ji)接地。低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)控(kong)制系(xi)統用來控(kong)制電(dian)(dian)(dian)(dian)磁振打錘、卸灰(hui)電(dian)(dian)(dian)(dian)極(ji)、輸灰(hui)電(dian)(dian)(dian)(dian)極(ji)以(yi)及幾個部(bu)件的溫度。