Series-Mixed-Cell Computational Model of Molecular Sieve Oxygen Concentrator
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摘要: 把吸附床看作由n个等体积的混合池串联而成,可将筛床的控制方程转化为容易求解的常微分方程,考虑了筛床内压力的变化以及吸附热引起的亨利系数的变化等因素.在此基础上,建立了机载分子筛氧浓缩器的非等温吸附数学模型,并对其在不同条件下的工作过程进行了模拟分析.模拟结果与文献结果一致,反映了温度对系统性能的影响.Abstract: A series-mixed-cell model was proposed to describe the adsorption beds in order to transform the control equations of molecular sieve beds from partial equations to normal equations. Considered pressure variation in the column and Henry coefficient variation due to adsorption heat, a nonisothermal adsorption mathematical model was established, which could simulate molecular sieve oxygen concentrator. Based on several working conditions, the adsorption processes of molecular sieve oxygen concentrator were simulated using the above model. The results agree with those reported in the references.
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