锻压技术

热成形模具冷却系统流量分配均匀性研究

英文标题：Research on flow distribution uniformity in cooling system of thermoforming die

作者：吉日格勒孙福臻张泉达刘子知

分类号：TG76

出版年,卷(期):页码：2022,47(4):218-226

摘要：

针对热成形模具复杂并联管路冷却系统的流量分配均匀性问题，通过建立某车型前防撞梁热成形模具冷却系统模型，利用STAR-CCM+软件对冷却系统的流量分配进行数值仿真分析，研究管路长度和进口流量对冷却系统管路流量分配的影响，并利用模具冷却系统流场状态检测平台进行验证。结果表明，流场分布的模拟结果和试验结果一致。管路长度和进口流量对管路流量分配的影响较大：管路长度差异越大，冷却系统流量分配均匀性越差；随着进口流量的增大，流场流量分配均匀性变差。相较于模拟仿真结果，检测平台可以更好地反映流场的分布。此外，通过检测平台可以测得冷却系统的最大进口流量，前防撞梁模具冷却系统进口流量的最大值约为19 m3·h-1。

For the problem of flow distribution uniformity for complex parallel pipeline cooling system in the thermoforming die, the cooling system model in the thermoforming die of front anti-collision beam for a certain car was established, and the numerical simulation analysis on the flow distribution of the cooling system was conducted by software STAR-CCM+. Then, the influences of pipe length and inlet flow on the flow distribution in the cooling system were studied, which was verified by the flow field state detection platform of die cooling system. The results show that the results of the simulation in the flow distribution were consistent with the experimental results. The pipe flow distribution is greatly affected by pipe length and inlet flow. The greater the difference in the pipe length is, the worse the uniformity of flow distribution in the cooling system is. As the inlet flow increases, the flow distribution uniformity of flow field becomes worse. Compared with the simulation results, the detection platform reflects the distribution of the flow field better. In addition, the maximum inlet flow of the cooling system can be measured by the detection platform, and the maximum inlet flow value of the cooling system in the die of front anti-collision beam is about 19 m3·h-1.

基金项目：

山东省重点研发计划（重大科技创新工程）项目（2019JZZY010442）

作者简介：吉日格勒（1991-），男，硕士，助理工程师 E-mail：jirigele678@hotmail.com 通信作者：张泉达(1986-),男,博士,中级工程师 E-mail：zhangquandadgu@163.com

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