通过对烟气、空气和水蒸汽的物性参数进行拟合，直接采用烟气、蒸汽侧对流传热系数公式计算对流换热系数，进一步实现锅炉对流受热面的传热系数类库编制，从而可以不再采用传统的查图求取的方法，提高计算的精度和效率。-of flue gas, air and water vapor from the fitting parameters and directly adopt smoke, steam side of the convective heat transfer coefficient formula convective heat transfer coefficient, further boiler heating surface convective heat transfer coefficient library establishment, thus can no longer using the traditional Chart strike methods to improve the precision and efficiency.