煤气化炉动态数学模型的建立与分析  

Establishment and analysis of dynamic mathematical model for coal gasifier

作　　者：杨晨[1] 孔德峰[1] 

机构地区：[1]重庆大学动力工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2009年第8期864-868,共5页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50576106)

摘　　要：以Texaco气化炉为研究对象,分析气化炉内流动、燃烧和气化反应特性,将Texaco气化炉膛分成3个模拟区域,即燃烧区、气化区和回流区,分别对各区运用质量守恒和能量守恒方程,得到集总参数动态数学模型。该模型考虑了气固两相流动、煤热解、辐射换热及包括均相和异相在内的气化反应过程。在模型基础上进行动态与静态仿真,并进行参数化研究和仿真结果分析,得出了一些重要参数的变化趋势和结论。模型的优点在于能对气化炉内喷动区的组分及温度分布进行更加准确的预测,从而具有较好的工程应用价值。Based on the analysis of flowing combustion, gasification reaction, and lumped parameter, a three-region model is established to predict the temperature and gas components of Texaco coal gasifier. Using mass balance and energy balance equations to each zone, the model takes account of gas solid two phase flow, coal pyrolysis, radiation heat transfer, and heterogeneous and homogeneous kinetic chemical reactions. Based on the model, a program is developed for dynamic and static simulation. After parameterization and simulation analysis, some important trends and conclusions are attained. Because the model can accurately predict the temperature and gas components in jet region, it has widespread engineering application value.

关 键 词：气化炉 煤气组分 动态数学模型 煤气化 

分 类 号：TK229[动力工程及工程热物理—动力机械及工程]