锻压技术

精锻余热回收系统蓄热水池温度场仿真研究

英文标题：Simulation research on temperature field for thermal storage tank in precision forging waste heat recovery system

分类号：TK11

出版年,卷(期):页码：2022,47(2):186-191

摘要：

锻造工艺中，工艺冷却水将中频感应炉感应线圈所受辐射热带入蓄热水池，蓄热水池作为能量储存场所，其一直处于“黑箱”状态，水池内水的温度分布和流动状态不明了。以现场得到的真实工艺参数为基础，利用Comsol软件对不同工况下蓄热水池内水的温度分布及流动状态进行建模和仿真，得到了在0∶00~8∶00无余热的时间段水池内水的温度分布和流动状态，为实现实时控制水池工艺冷却水温度打下了良好基础。同时，针对热泵获取不到热水的问题，提出将热泵取水口延伸至水池中部的假设，结果表明，该假设可行，解决了热泵获取不到热水的难题，提升了整个余热回收系统的效率。

In the forging process, the process cooling water transfers radiant heat received by induction coil of intermediate frequency induction furnace into thermal storage tank, and as an energy storage place , the thermal storage tank has always in a “black box” state that it is unclear about temperature distribution and flow state of water in the tank. Therefore, based on the real process parameters obtained on-site, the model and simulation of the temperature distribution and flow state of water in the thermal storage tank under different working conditions were conducted by software Comsol, and the temperature distribution and flow state of water in the tank during the period of 0∶00~8∶00 without residual heat were obtained, which laid a good foundation for realizing real-time control of the temperature of process cooling water in the tank. At the same time, aiming at the problem that the heat pump could not obtain hot water, the assumption of extending the water intake of the heat pump to the middle of the tank was proposed. The results show that the assumption is feasible, which solves the problem that the heat pump can not obtain hot water and improves the efficiency of the whole waste heat recovery system.

基金项目：

国家自然科学基金资助项目（61973224）

作者简介：齐永恒（1993-），男，硕士，E-mail：1441482285@qq.com；通信作者：陈辉（1963-），男，博士，教授，E-mail：Chenhui@sjzu.edu.cn

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