一种燃烧器炉底布置的煤粉工业锅炉的数值模拟研究

Numerical Simulation Study on One Kind of Industrial Pulverized Coal Boiler with Burner Bottom Arranged

煤粉工业锅炉中燃烧器炉底布置方案具有燃烧效率高、燃烧器便于安装与检修、风机耗电量少等优点,具有较好的应用前景。运用商业CFD软件STAR-CCM+对某燃烧器炉底布置的煤粉工业锅炉进行数值模拟研究,计算了炉内的流场、温度场、氧气浓度分布与氮氧化物浓度分布,分析一次风风速、内二次风风速与二次风旋流强度对流场的影响,为后续燃烧器炉底布置的煤粉工业锅炉的设计及优化提供了指导。

Industrial pulverized coal boiler with burner bottom arranged has several advantages, such as high burning efficiency, easy installation and maintenance for burner, low power consumption for fan and better application prospect. The author uses commercial CFD software STAR-CCM＋ to carry out numerical simulation study on industrial pulverized coal boiler with burner bottom arranged. Flow field, temperature field, oxygen concentration distribution and nitrogen oxide concentration distribution inside boiler are calculated. Impact on flow field of primary wind speed, inner secondary wind speed and secondary wind cyclone intensity are analyzed, which provides reference to design and optimization of industrial pulverized coal boiler with burner bottom arranged in the future.