工业燃气增压粉煤气流床气化炉数值模拟

NUMERICAL SIMULATION OF THE INDUSTRIAL GAS PRESSURIZED ENTRAINED FLOW COAL GASIFIER

对制工业燃气的新型增压气流床气化炉气化过程采用三维数值模拟研究,建立可靠的数学模型,预测了气流床气化炉内的流场分布、温度分布以及气体成分分布,并对模拟结果进行了分析.结果表明,炉内流场能够合理地反映气化炉内的反应趋势及进程;该炉型结构能够使炉内温度场均匀,平均温度水平上升;出口气体成分的模拟值与文献值吻合良好.

In recent years, with the rapid development of glass industry as well as ceramics factory, industrial gas markets have even broader prospects. In this paper, the gasification process of a new type of the industrial gas pressurized entrained flow coal gasifier is simulated using three-dimensional numerical simulation method. The reliable model have been established and predict the flow distribution, temperature distribution, and gas composition distribution of the entrained flow coal gasifier. As a conclusion the simulation results is also analyzed. From the results,it can be investigated that the flow field in the gasifier can reasonably reflect the trends and processes of reaction in the gasifier;temperature field in the gasifier becomes more even, average tempera- ture increases;and the outlet gas composition is consistent with the measurement data.