本文建立适用于切圆燃烧煤粉炉的一维燃烧传热数学模型,提出利用锅炉试验数据,调整炉内传热燃烧数学模型的某些不易确定的边界条件,然后根据调整过的边界条件,采用数学模型预测未知锅炉运行情况的方法。该方法已用于大武口电厂一台100MW锅炉的改造工程上,改后试验结果证明,预测结果可满足工程需要. In this paper, a one-dimensional mathematical model of combustion heat transfer applied to a tangentially fired pulverized coal fired boiler is established, and some difficult-to-determine boundary conditions of mathematical models for heat transfer combustion in a furnace are adjusted by using boiler test data. Based on the adjusted boundary conditions, A Method to Predict the Operation of Unknown Boiler by Mathematical Model. The method has been applied to the reconstruction project of a 100MW boiler at Dawukou Power Plant. The test results after the modification show that the prediction result can meet the needs of the project.