管道式空氣電加熱器也高效、環保、節能的一種輻射型加熱器,管道加熱器通電后可在管道加熱器的垂直空間形成極強的寬譜定向輻射,管道加熱器將電能有效轉化為管道加熱器的遠紅外輻射能,管道加熱器直接傳遞給被烘干物,管道加熱器迅速轉化為分子熱運動,管道加熱器由內向外干燥,管道加熱器達到快速烘干定型的目的,并取得管道加熱器的顯著節能效果。
管(guan)(guan)道加熱(re)(re)(re)器(qi)的碳(tan)化(hua)(hua)(hua)(hua)硅遠紅(hong)外(wai)電熱(re)(re)(re)板是用管(guan)(guan)道加熱(re)(re)(re)器(qi)的涂(tu)有金(jin)屬氧(yang)化(hua)(hua)(hua)(hua)物即遠紅(hong)外(wai)線涂(tu)料的碳(tan)化(hua)(hua)(hua)(hua)硅板做輻(fu)射(she)元(yuan)件(jian),管(guan)(guan)道加熱(re)(re)(re)器(qi)的在元(yuan)件(jian)孔內(或槽內)裝(zhuang)進電熱(re)(re)(re)絲,在管(guan)(guan)道加熱(re)(re)(re)器(qi)的元(yuan)件(jian)的底部放有較厚的絕緣(yuan)、耐火、隔熱(re)(re)(re)材料,然后裝(zhuang)上(shang)管(guan)(guan)道加熱(re)(re)(re)器(qi)的金(jin)屬外(wai)殼,安裝(zhuang)好管(guan)(guan)道加熱(re)(re)(re)器(qi)的接線柱便可通電使用。管(guan)(guan)道加熱(re)(re)(re)器(qi)中(zhong)的碳(tan)化(hua)(hua)(hua)(hua)硅常溫抗折(zhe)強度 45Mpa,1000 ℃高溫抗折(zhe)強度 50Mpa 管(guan)(guan)道加熱(re)(re)(re)器(qi)的體積密(mi)度2.7-2.75g/cm3,900℃熱(re)(re)(re)膨脹率0.42-0.48% 導(dao)熱(re)(re)(re)系數(350℃)10.3-16.7w/m.k 。