從(cong)結構角度分(fen)析的(de)話，導(dao)熱(re)(re)油加熱(re)(re)器主(zhu)要是由電(dian)加熱(re)(re)元件(jian)、有機熱(re)(re)載體爐(lu)、換(huan)熱(re)(re)器、控制(zhi)柜、熱(re)(re)油泵、膨脹槽等多個部件(jian)組合而(er)成的(de)。在使用的(de)時候，用戶只需(xu)要接(jie)入電(dian)源、介質的(de)進出口管(guan)道及一些(xie)電(dian)氣接(jie)口就可以了。

而從應(ying)用范圍方面來看(kan)的(de)話(hua)，目前導(dao)熱(re)油加(jia)熱(re)器已經被廣泛應(ying)用與高溫(wen)定型、板材加(jia)溫(wen)、瀝青加(jia)熱(re)等工(gong)作(zuo)環節中，橡膠(jiao)、烘(hong)干、印(yin)染、化工(gong)、模具、烘(hong)箱等行業中都(dou)能看(kan)到導(dao)熱(re)油加(jia)熱(re)器的(de)身影。

利用電(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)焦耳效應將電(dian)(dian)(dian)(dian)能(neng)(neng)轉變成(cheng)熱(re)(re)(re)(re)能(neng)(neng)以加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)。通(tong)常分(fen)為直(zhi)接電(dian)(dian)(dian)(dian)阻加(jia)(jia)(jia)熱(re)(re)(re)(re)和(he)間接電(dian)(dian)(dian)(dian)阻加(jia)(jia)(jia)熱(re)(re)(re)(re)。前(qian)者的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓直(zhi)接加(jia)(jia)(jia)到(dao)被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)上，當有電(dian)(dian)(dian)(dian)流流過時，被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)本身(shen)（如電(dian)(dian)(dian)(dian)加(jia)(jia)(jia)熱(re)(re)(re)(re)熨(yun)平機）便(bian)發熱(re)(re)(re)(re)。可直(zhi)接電(dian)(dian)(dian)(dian)阻加(jia)(jia)(jia)熱(re)(re)(re)(re)的(de)(de)(de)(de)物(wu)(wu)(wu)體(ti)必須是導(dao)體(ti)，但要有較高的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)阻率(lv)。由(you)于(yu)熱(re)(re)(re)(re)量產(chan)(chan)生(sheng)于(yu)被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)本身(shen)，屬(shu)于(yu)內(nei)部加(jia)(jia)(jia)熱(re)(re)(re)(re)，熱(re)(re)(re)(re)效率(lv)很高。間接電(dian)(dian)(dian)(dian)阻加(jia)(jia)(jia)熱(re)(re)(re)(re)需由(you)專門(men)的(de)(de)(de)(de)合金(jin)材(cai)料(liao)或非金(jin)屬(shu)材(cai)料(liao)制成(cheng)發熱(re)(re)(re)(re)元件，由(you)發熱(re)(re)(re)(re)元件產(chan)(chan)生(sheng)熱(re)(re)(re)(re)能(neng)(neng)，通(tong)過輻(fu)射(she)、對流和(he)傳導(dao)等方式傳到(dao)被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)上。由(you)于(yu)被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)和(he)發熱(re)(re)(re)(re)元件分(fen)成(cheng)兩(liang)部分(fen)，因此(ci)被加(jia)(jia)(jia)熱(re)(re)(re)(re)物(wu)(wu)(wu)體(ti)的(de)(de)(de)(de)種(zhong)類一般不受限制，輻(fu)射(she)板電(dian)(dian)(dian)(dian)熱(re)(re)(re)(re)管批發，操作簡(jian)便(bian)。

電弧加熱

利用(yong)電(dian)(dian)(dian)(dian)(dian)弧(hu)產生的高溫加熱(re)物體(ti)。電(dian)(dian)(dian)(dian)(dian)弧(hu)是兩電(dian)(dian)(dian)(dian)(dian)極間的氣體(ti)放電(dian)(dian)(dian)(dian)(dian)現象(xiang)。電(dian)(dian)(dian)(dian)(dian)弧(hu)的電(dian)(dian)(dian)(dian)(dian)壓(ya)不(bu)高但(dan)電(dian)(dian)(dian)(dian)(dian)流很大(da)(da)(da)，輻射板(ban)電(dian)(dian)(dian)(dian)(dian)熱(re)管廠(chang)家，其強大(da)(da)(da)的電(dian)(dian)(dian)(dian)(dian)流靠電(dian)(dian)(dian)(dian)(dian)極上蒸發的大(da)(da)(da)量離子所維持(chi)，輻射板(ban)電(dian)(dian)(dian)(dian)(dian)熱(re)管廠(chang)，因而電(dian)(dian)(dian)(dian)(dian)弧(hu)易受(shou)周圍磁場(chang)的影響。當電(dian)(dian)(dian)(dian)(dian)極間形成電(dian)(dian)(dian)(dian)(dian)弧(hu)時，本溪(xi)輻射板(ban)電(dian)(dian)(dian)(dian)(dian)熱(re)管，電(dian)(dian)(dian)(dian)(dian)弧(hu)柱(zhu)的溫度(du)可達3000～6000K，適于金屬的高溫熔煉。

電(dian)弧(hu)加(jia)熱(re)有直(zhi)(zhi)接和(he)間接電(dian)弧(hu)加(jia)熱(re)兩種。直(zhi)(zhi)接電(dian)弧(hu)加(jia)熱(re)的(de)電(dian)弧(hu)電(dian)流直(zhi)(zhi)接通過被加(jia)熱(re)物體，被加(jia)熱(re)物體必須是電(dian)弧(hu)的(de)一(yi)個電(dian)極或是媒質。