摘要
建立了筒状辐射换热器传热计算模型 ,分析了台车式热处理炉上使用燃气辐射换热器的传热特性 (空气预热温度、壁温和传热系数 )。结果表明 ,燃气辐射换热器的传热特性在整个热处理过程中是不断变化的 ,空气平均预热温度并不能达到换热器的额定设计值 ,故在周期式热处理炉上使用辐射换热器并不完全合适。本文的方法既可用于换热器的设计 。
The calculation model for tubular radiation recuperator has been established and the thermal transmission characteristics (preheating temperature of air,temperature of furnace wall and thermal transmission coefficient) of the radiation recuperator for car-type heat treating furnace has been therefore analyzed.Study results show that the thermal transmission characteristic of the radiation recuperator is variable during the heat treating process,and the average preheating temperature of air is not capable of achieving the rated design value of the recuperator.
出处
《热处理》
CAS
2001年第1期29-32,共4页
Heat Treatment
