電輔加熱器是由(you)進(jin)出氣(qi)(qi)凸(tu)緣、電(dian)(dian)加(jia)熱(re)(re)(re)管(guan)、隔(ge)熱(re)(re)(re)層和電(dian)(dian)氣(qi)(qi)接線腔(qiang)等組成的(de)一種箱形結構(gou)。為了減少(shao)壓力損失，電(dian)(dian)熱(re)(re)(re)管(guan)呈直(zhi)線字形排(pai)列(lie)。由(you)密封(feng)風扇(shan)產生的(de)密封(feng)空(kong)氣(qi)(qi)進(jin)入電(dian)(dian)輔加(jia)熱(re)(re)(re)器(qi)后，與電(dian)(dian)加(jia)熱(re)(re)(re)管(guan)表(biao)面進(jin)行熱(re)(re)(re)交(jiao)換，在出口(kou)(kou)獲得符合工藝要求(qiu)的(de)熱(re)(re)(re)空(kong)氣(qi)(qi)。電(dian)(dian)輔加(jia)熱(re)(re)(re)器(qi)出口(kou)(kou)安裝有溫(wen)(wen)度(du)(du)傳感(gan)器(qi)Pt100，用(yong)于測(ce)量出口(kou)(kou)密封(feng)空(kong)氣(qi)(qi)的(de)溫(wen)(wen)度(du)(du)，并將測(ce)量到的(de)溫(wen)(wen)度(du)(du)信號反(fan)饋給(gei)自動溫(wen)(wen)度(du)(du)控制柜，以保(bao)證密封(feng)空(kong)氣(qi)(qi)加(jia)熱(re)(re)(re)溫(wen)(wen)度(du)(du)的(de)準(zhun)確性。
溫(wen)(wen)(wen)度(du)(du)自動控制(zhi)(zhi)(zhi)柜(ju)中安裝有用(yong)于分配、控制(zhi)(zhi)(zhi)和保(bao)(bao)護電(dian)(dian)輔(fu)(fu)加熱器(qi)(qi)的(de)電(dian)(dian)氣(qi)元(yuan)件，主要有斷(duan)路器(qi)(qi)、交流接觸(chu)器(qi)(qi)、溫(wen)(wen)(wen)度(du)(du)顯示調(diao)節器(qi)(qi)、SCR、SCR觸(chu)發器(qi)(qi)及其他(ta)控制(zhi)(zhi)(zhi)、顯示元(yuan)件。溫(wen)(wen)(wen)控柜(ju)自動恒溫(wen)(wen)(wen)控制(zhi)(zhi)(zhi)原理：通(tong)過溫(wen)(wen)(wen)度(du)(du)傳感器(qi)(qi)測(ce)量電(dian)(dian)加熱管加熱后密封空氣(qi)的(de)溫(wen)(wen)(wen)度(du)(du)，并將溫(wen)(wen)(wen)度(du)(du)信號反饋給溫(wen)(wen)(wen)控柜(ju)內的(de)溫(wen)(wen)(wen)控調(diao)節器(qi)(qi)，經溫(wen)(wen)(wen)控調(diao)節器(qi)(qi)處(chu)理后通(tong)過控制(zhi)(zhi)(zhi)可控硅觸(chu)發器(qi)(qi)來控制(zhi)(zhi)(zhi)電(dian)(dian)加熱管的(de)功率(lv)，從而達到恒溫(wen)(wen)(wen)控制(zhi)(zhi)(zhi)的(de)目的(de)。溫(wen)(wen)(wen)度(du)(du)自動控制(zhi)(zhi)(zhi)柜(ju)在超(chao)溫(wen)(wen)(wen)情況下，輸出一個超(chao)溫(wen)(wen)(wen)報警(jing)信號到控制(zhi)(zhi)(zhi)系統(tong)，自動切(qie)斷(duan)電(dian)(dian)熱源，達到自保(bao)(bao)目的(de)。電(dian)(dian)輔(fu)(fu)加熱器(qi)(qi)可遠距離控制(zhi)(zhi)(zhi)，也可就地(di)運行(xing)。
電輔加(jia)熱器和溫度自(zi)動控制(zhi)柜安裝在(zai)同一底座上。在(zai)出廠之前，電(dian)加熱管和溫度自(zi)動控制(zhi)柜都是由耐(nai)高(gao)溫電(dian)線連接的。
