本文以二维拟均相模型研究了逆流壁冷管式反应器的多态存在域.模型方程的数值分析采取了连续性算法以同时获得表示反应器着火和熄火的奇异点对以确定多态存在域,及多态存在时的径向和轴向的浓度和温度分布,并用相空间表示了有关的7个主要无因次数群的影响.通过与一维模型的比较,进而显示了Biot准数对模型计算结果的效应.本文亦就二维模型与一维模型的结果作了比较. In this paper, a two-dimensional quasi-homogeneous model was used to study the existence of the polymorphic state of the counter-flow wall cold-tube reactor.The numerical analysis of the model equation adopted a continuous algorithm to simultaneously obtain singular pairs representing reactor fire and flameout to determine polymorphism Existence domain, and the distribution of radial and axial concentration and temperature in the existence of polymorphism, and the phase space is used to show the influence of the seven major dimensionless groups.Compared with the one-dimensional model, the Biot criterion Effect of Number on Model Calculation Results This paper also compares the two-dimensional model with the one-dimensional model.