Rotary regenerative oxidiser (r-RTO), an effective VOCs treatment equipment, needs to be operated for a long time under actual working conditions, resulting in excessive temperatures on the outer wall of the r-RTO furnace, which causes production accidents. In order to avoid production accidents, the heat transfer process of airflow inside r-RTO regenerator should be clarified. Computational Fluid Dynamics (CFD) method is applied to analyse the temperature and pressure distribution in r-RTO regenerator. The temperature distribution of regenerator is analysed in order to find the main thermal dissipation path based on thermal-fluid coupling method. In temperature distribution, the outlet temperature T_outlet is decreased with the increase of regenerator height h. However, T_outlet is increased with the increase of gas flow rate v_gas pore size D_p, respectively. In pressure distribution, the pressure drop P_drop is increased with the increase of h and v_gas. However, P_drop is decreased with the increase of D_p. The results of the temperature distribution analysis are shown that the main pathway for thermal dissipation is along the partition dividers to insulation material where thermal dissipated through the insulation material. Quadratic regression method is used to design multivariate simulation experiments. Genetic algorithm is used to find optimal operating parameters. In addition, partition divider material and thermal insulation thickness are used as optimization parameters to optimize the thermal insulation construction. The present study reveals that thermal-fluid coupling method and quadratic regression method are satisfactory for the optimization of regenerator operating parameters and thermal insulation construction for r-RTO regenerator.

回转蓄热式氧化器（r -RTO）作为一种有效的VOCs处理设备，需要在实际工况下长时间运行，导致r -RTO炉外壁温度过高，造成生产事故。为避免生产事故，应明确r -RTO蓄热器内部气流的传热过程。应用计算流体动力学（CFD）方法分析r -RTO蓄热器内的温度和压力分布。分析蓄热器的温度分布，基于热流体耦合法寻找主要的散热路径。在温度分布中，出口温度T _outlet随回热器高度h的增加而减小。然而，T _outlet分别随着气体流量v_气体孔径D _p的增加而增加。在压力分布中，压降P _drop随着h和v _gas的增加而增加。然而，P _drop随着D _{p的增加而减小}. 温度分布分析结果表明，散热的主要途径是沿着隔板到达绝缘材料，通过绝缘材料散热。二次回归方法用于设计多元模拟实验。遗传算法用于寻找最佳操作参数。此外，以隔板材料和保温厚度为优化参数，优化保温结构。本研究表明，热流耦合法和二次回归法在优化r -RTO蓄热器的蓄热器运行参数和保温结构方面具有较好的效果。