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农学学报

农学学报 ›› 2010, Vol. 0 ›› Issue (3): 0-0.

• 农业工程 农业机械 生物技术 食品科学 •    

热风炉用换热器传热性能研究

李爱琴   

  • 收稿日期:2009-12-04 修回日期:2010-03-03 出版日期:2010-03-10 发布日期:2010-03-10

Study on Heat transfer performance of Heat exchanger of Hot-blast stove

  • Received:2009-12-04 Revised:2010-03-03 Online:2010-03-10 Published:2010-03-10

摘要： 摘 要：换热器是干燥热风炉的主要设备，本文用LMTD法计算了筒式辐射换热器在空气升高不同温度时的换热面积。绘制了空气升高温度差Δt=t2-t1与平均换热面积（F/(t2-t1)）的关系曲线，在此基础上提出了经济温度区域的概念。应用此概念可以指导高温大容量热风炉二级换热器的设计和选择。

Abstract: Heat exchangers are the main equipment of hot-blast stoves. Heat exchange area of the cylinder radiation exchanger has computed by LMTD when air has heated to different temperature. Draw the graph of relation of temperature differenceΔt=t2-t1and average heat exchange area (F/(t2-t1)). The concept of the economical temperature district is proposed on the basis of it. It has the more practical value in the choosing and designing the exchangers of the hot-blast stoves with high-power and high temperature.