產品說明:
電(dian)熱(re)輻(fu)(fu)射管(guan)是一(yi)種(zhong)消耗電(dian)能(neng)(neng)轉換為熱(re)能(neng)(neng),來對(dui)需加(jia)熱(re)物料(liao)進(jin)行加(jia)熱(re)的設備。把電(dian)熱(re)元件(jian)封閉在保護套內,通電(dian)加(jia)熱(re)后,由(you)套管(guan)間接地把熱(re)量輻(fu)(fu)射給爐襯和被加(jia)熱(re)工件(jian)。
電熱(re)輻射管的(de)加(jia)熱(re)適用于通保護氣氛的(de)和有(you)腐蝕性氣氛的(de)爐(lu)子,如連續爐(lu)、滾筒爐(lu)、井式爐(lu)等(deng)等(deng)。
電(dian)(dian)熱(re)(re)(re)(re)(re)輻射管(guan)(guan)是一種(zhong)消耗電(dian)(dian)能(neng)轉換為熱(re)(re)(re)(re)(re)能(neng),來對(dui)需加熱(re)(re)(re)(re)(re)物料進行加熱(re)(re)(re)(re)(re)。 加熱(re)(re)(re)(re)(re)管(guan)(guan)在工(gong)作中(zhong)低溫流體介質(zhi)(zhi)(zhi)通過管(guan)(guan)道(dao)在壓力作用下進入其輸入口,沿著電(dian)(dian)加熱(re)(re)(re)(re)(re)容器內部特定換熱(re)(re)(re)(re)(re)流道(dao),運用空(kong)氣(qi)電(dian)(dian)加熱(re)(re)(re)(re)(re)管(guan)(guan)的(de)流體熱(re)(re)(re)(re)(re)力學原理設(she)計(ji)的(de)路徑,帶走空(kong)氣(qi)電(dian)(dian)加熱(re)(re)(re)(re)(re)管(guan)(guan)中(zhong)的(de)電(dian)(dian)熱(re)(re)(re)(re)(re)元件工(gong)作中(zhong)所產(chan)生的(de)高溫熱(re)(re)(re)(re)(re)能(neng)量(liang),使空(kong)氣(qi)電(dian)(dian)加熱(re)(re)(re)(re)(re)管(guan)(guan)被(bei)加熱(re)(re)(re)(re)(re)介質(zhi)(zhi)(zhi)溫度升高,電(dian)(dian)加熱(re)(re)(re)(re)(re)管(guan)(guan)出(chu)口得到(dao)工(gong)藝要求的(de)高溫介質(zhi)(zhi)(zhi)。
電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)的(de)內部(bu)控制(zhi)系(xi)統依據輸(shu)(shu)(shu)出口(kou)(kou)的(de)溫度傳感器(qi)信號自(zi)動(dong)調節電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)輸(shu)(shu)(shu)出功率,使空(kong)氣電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)的(de)輸(shu)(shu)(shu)出口(kou)(kou)的(de)介(jie)質(zhi)溫度均(jun)勻;當空(kong)氣電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)的(de)發(fa)熱(re)(re)元(yuan)件(jian)超(chao)溫時,發(fa)熱(re)(re)元(yuan)件(jian)的(de)獨(du)立(li)的(de)過(guo)熱(re)(re)保護裝置立(li)即切斷(duan)加熱(re)(re)電(dian)(dian)(dian)源(yuan),避免空(kong)氣電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)中(zhong)的(de)加熱(re)(re)物(wu)料超(chao)溫引起結焦(jiao)、變質(zhi)、碳化,嚴(yan)重(zhong)時導(dao)致空(kong)氣電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)中(zhong)的(de)發(fa)熱(re)(re)元(yuan)件(jian)燒(shao)壞,有效延(yan)長電(dian)(dian)(dian)加熱(re)(re)管(guan)(guan)使用壽(shou)命。
分類
1、線狀(zhuang)螺旋(xuan)環繞電(dian)熱輻(fu)射管
這(zhe)種電(dian)熱輻射管由(you)耐(nai)熱合金(jin)鋼套(tao)管和加熱器組成,加熱器一般由(you)電(dian)熱絲繞在開有(you)螺旋(xuan)溝槽的耐(nai)熱絕(jue)緣陶瓷(ci)管芯上。
2、帶(dai)狀螺(luo)旋環繞電熱輻射管
這種(zhong)加熱器的結構基(ji)本(ben)上與(yu)種(zhong)結構相同,只是加熱元件(jian)采(cai)用(yong)電阻帶繞制,管(guan)芯多為多個分組式管(guan)芯組成,在同樣表(biao)面負荷下,熱輻(fu)射(she)面大(da),材料可節省,一般大(da)功率點(dian)加熱輻(fu)射(she)管(guan)采(cai)用(yong)此(ci)種(zhong)形式。
3、軸(zhou)向(xiang)波折形(xing)籠柜(ju)式(shi)電熱輻射管(guan)(俗稱鼠(shu)籠式(shi))
其結構是將加熱(re)元件的電阻(zu)絲(帶(dai))彎成(cheng)“U”形串入多塊絕緣耐高溫的陶瓷支撐盤中(zhong),中(zhong)間(jian)用一根耐熱(re)棒固定,這種輻射管壽(shou)命較長。
特點
1、核心材料采(cai)用直(zhi)流氬弧焊(han)接,使表面負荷(he)、電(dian)阻差(cha)等(deng)各項技術指標(biao)得(de)到保證。
2、耐熱絕緣瓷(ci)件熱震性(xing)好、耐高(gao)溫、壽命長(chang)。有高(gao)、中、低溫爐(lu)用(yong)和特種(zhong)氣氛爐(lu)用(yong)規格任意(yi)選用(yong)。外套管系采用(yong)無(wu)縫耐高(gao)溫合金管及(ji)板(ban)卷管、離心鑄管、非(fei)金屬專用(yong)抗滲碳套管等。安裝(zhuang)、檢(jian)測、維(wei)修方便,均在爐(lu)外進行(xing)。
3、結構緊湊,性(xing)能穩(wen)定、單根功率大、使(shi)用壽命(ming)是普通電加熱管的(de)幾倍(bei)。
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