In order to solve the problem of the uneven temperature distribution on the surface of the pot slot of the tea carding machine, a temperature field model of the pot slot and structure was established. The transient heating of the pot slot at reciprocating frequencies of 0 r/min, 150 r/min, 180 r/min and 210 r/min was simulated by using computational fluid dynamics (CFD) based on a dynamic method of meshing. The simulation results showed that the coefficients of non‑uniformity of temperature of the pot slot with the original structure were 0.089, 0.116, 0.121 and 0.123, respectively, exhibiting an uneven temperature distribution of the pot slot, and decreasing uniformity of temperature with the increase of reciprocating frequency. The direction of the layout and the center distance of the heating tubes was optimized based on these simulation results. The coefficients of non‑uniformity of the temperature of the optimized pot slot were 0.043, 0.05, 0.054 and 0.059, reflecting a more uniform temperature. Moreover, the process of transient heating was simulated when the pot slot was covered with a flexible heating film. The pot slot reached its maximum temperature within 20 s when the heating film was used, with a rate of heating much higher than that of an electric heating pipe structure. Furthermore, its coefficient of non‑uniformity of temperature was only 0.002, indicating a uniform temperature distribution, which could be considered as a direction for optimizing the heating method of the tea carding machine.

为解决茶叶理条机锅槽表面温度分布不均匀的问题，建立锅槽与加热结构的温度场模型。采用计算流体力学(CFD)动网格方法模拟往复频率为0 r/min、150 r/min、180 r/min、210 r/min的锅槽瞬态升温过程。仿真结果显示：原结构下锅槽温度不均匀系数分别为0.089、0.116、0.121、0.123，锅槽温度分布不均匀，锅槽温度均匀性随着往复频率的增加逐渐降低。根据仿真结果优化加热管的排布方向及中心距，优化后的锅槽温度不均匀性系数为0.043、0.05、0.054、0.059，温度均匀性更好；并模拟使用柔性加热膜包覆锅槽时的瞬态升温过程。结果表明，使用加热膜加热时，锅槽在20 s内即可达到最高温度，升温速度远高于电热管结构，且温度不均匀系数仅为0.002，锅槽温度分布均匀，可成为茶叶理条机加热方式下一步优化方向。