螺旋槽管的强化传热及在锅炉空预器上的应用

Application of screw pipe strengthened passing heat in boiler air preheating unit

详细分析了螺旋槽管强化传热的机理及其换热特点 ,关成功地在 75t/h煤粉锅炉空气预热器改造上得以应用。其节能、防磨、防低温腐蚀效果明显 。

Strengthened passing heat and preheating mechanism of screw pipe are analyzed.It is succesfully used in the air preheating unit reform of 75 t/h coal powder boiler.The result of saving energy,low temperature wear prevetion are obvious.