南通靜電除塵器廠家

靜電除塵器的(de)工作原理是利用(yong)高(gao)壓電(dian)(dian)場使煙氣發生電(dian)(dian)離(li)，氣流中(zhong)的(de)粉(fen)塵荷電(dian)(dian)在電(dian)(dian)場作用(yong)下與氣流分(fen)離(li)。負極(ji)由(you)不同斷面形狀的(de)金屬導線制成(cheng)，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(de)(de)性(xing)能受粉(fen)(fen)塵性(xing)質、設備構造和煙氣流速等三(san)個因素(su)的(de)(de)影(ying)響。粉(fen)(fen)塵的(de)(de)比(bi)電(dian)(dian)(dian)(dian)(dian)阻是評(ping)價導電(dian)(dian)(dian)(dian)(dian)性(xing)的(de)(de)指(zhi)標，它對除塵效率有(you)直(zhi)接的(de)(de)影(ying)響。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過低，塵粒(li)(li)難以(yi)保持(chi)在集(ji)塵電(dian)(dian)(dian)(dian)(dian)極上，致使其重返氣流。比(bi)電(dian)(dian)(dian)(dian)(dian)阻過高，到達集(ji)塵電(dian)(dian)(dian)(dian)(dian)極的(de)(de)塵粒(li)(li)電(dian)(dian)(dian)(dian)(dian)荷不易放出，在塵層之間形(xing)成(cheng)電(dian)(dian)(dian)(dian)(dian)壓梯度(du)會產生局部擊穿(chuan)和放電(dian)(dian)(dian)(dian)(dian)現(xian)象(xiang)。這些情(qing)況都會造成(cheng)除塵效率下降。

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，靜電除塵器運行電壓需保持40一75kV乃(nai)至100kV以(yi)上。

工作原理

電(dian)(dian)除塵(chen)器的(de)(de)(de)(de)基本(ben)原理是利用電(dian)(dian)力捕集煙氣中的(de)(de)(de)(de)粉塵(chen)，主(zhu)要包(bao)括以下四個相(xiang)互(hu)有關的(de)(de)(de)(de)物(wu)理過程：（1）氣體的(de)(de)(de)(de)電(dian)(dian)離(li)。（2）粉塵(chen)的(de)(de)(de)(de)荷(he)電(dian)(dian)。（3）荷(he)電(dian)(dian)粉塵(chen)向電(dian)(dian)極移動(dong)。（4）荷(he)電(dian)(dian)粉塵(chen)的(de)(de)(de)(de)捕集。

荷(he)電(dian)(dian)(dian)(dian)粉(fen)(fen)塵(chen)(chen)的(de)捕集過程：在(zai)兩個曲率半徑相(xiang)差較(jiao)大(da)的(de)金屬陽(yang)極和陰極上(shang)(shang)，通(tong)過高(gao)壓直流(liu)電(dian)(dian)(dian)(dian)，維持一個足以使氣(qi)(qi)體電(dian)(dian)(dian)(dian)離(li)(li)的(de)電(dian)(dian)(dian)(dian)場(chang)，氣(qi)(qi)體電(dian)(dian)(dian)(dian)離(li)(li)后(hou)所產生的(de)電(dian)(dian)(dian)(dian)子：陰離(li)(li)子和陽(yang)離(li)(li)子，吸附在(zai)通(tong)過電(dian)(dian)(dian)(dian)場(chang)的(de)粉(fen)(fen)塵(chen)(chen)上(shang)(shang)，使粉(fen)(fen)塵(chen)(chen)獲得電(dian)(dian)(dian)(dian)荷(he)。荷(he)電(dian)(dian)(dian)(dian)極性不(bu)同的(de)粉(fen)(fen)塵(chen)(chen)在(zai)電(dian)(dian)(dian)(dian)場(chang)力的(de)作用下，分(fen)(fen)別向不(bu)同極性的(de)電(dian)(dian)(dian)(dian)極運動，沉積在(zai)電(dian)(dian)(dian)(dian)極上(shang)(shang)，而達到粉(fen)(fen)塵(chen)(chen)和氣(qi)(qi)體分(fen)(fen)離(li)(li)的(de)目的(de)。

基本結構

靜電(dian)(dian)電(dian)(dian)除(chu)塵(chen)器(qi)由兩(liang)大部分(fen)組成：一(yi)部分(fen)是(shi)電(dian)(dian)除(chu)塵(chen)器(qi)本(ben)體系統；另一(yi)部分(fen)是(shi)提(ti)供高壓(ya)直流(liu)電(dian)(dian)的(de)供電(dian)(dian)裝置和(he)低(di)壓(ya)自動控(kong)制系統。電(dian)(dian)除(chu)塵(chen)器(qi)的(de)結構原理(li)圖(tu)如圖(tu)1所(suo)示，高壓(ya)供電(dian)(dian)系統為升壓(ya)變壓(ya)器(qi)供電(dian)(dian)，除(chu)塵(chen)器(qi)集塵(chen)極(ji)接(jie)地(di)。低(di)壓(ya)電(dian)(dian)控(kong)制系統用來控(kong)制電(dian)(dian)磁(ci)振打錘、卸灰電(dian)(dian)極(ji)、輸(shu)灰電(dian)(dian)極(ji)以及幾個部件的(de)溫度。