分段可调水流量集管流量凸度分布研究  

Flow Convexity Distribution of Subsection Adjustable Water Flow Header

作　　者：张少军[1] 郑超 朱冬梅[1] 郝雯婕 ZHANG Shao-Jun;ZHENG Chao;ZHU Dong-Mei;HAO Wen-Jie(School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China)

机构地区：[1]北京科技大学机械工程学院,北京100083

出　　处：《工程热物理学报》2019年第5期1031-1040,共10页Journal of Engineering Thermophysics

基　　金：中央高校基本科研业务费专项资金资助(No.FRF-TP-12-073A)

摘　　要：中厚板生产过程中,控冷工艺是提高钢板性能的重要环节,而保证整板冷却均匀是需要解决的关键问题。本文基于流体动力学数值计算方法,针对五段式、圆形喷嘴的中厚板控冷集管冷却器,模拟研究集管水箱底部进水、中部单侧进水和中部双侧进水等不同进水方案下,集管的内部流场和各喷嘴出口流量,分析喷嘴出口流量分布规律。结果表明:改进的有阻尼板的水箱底部进水集管和无阻尼板的水箱中部双侧进水集管,两排喷嘴的出口流量分布,基本满足喷嘴出口流量分别为中凸的要求,本研究可为控冷设备集管的设计提供理论依据和参考.During the process of plate production, the controllable cooling process is an important step to improve the performance of the steel plate, and the uniform cooling of the whole plate is the key problem to be solved. In this paper, based on the numerical calculation of fluid dynamics, aiming at five-section and round nozzle cooling plate-header coolers, the internal flow field of the header and the outlet flow of each nozzle were analyzed and the distribution law of the nozzle outlet flow was analyzed under the different inlet schemes, such as the bottom water inlet of the header tank, the middle side single inlet and the middle double inlet water. The results show that the improved flow distribution of the two inlet nozzles can meet the requirement of the convexity of the nozzle outlet flow, which is the damping plate bottom water inlet header and the undamped plate water tank middle double inlet header. This study can provide theoretical basis and reference for the design of header in cooling equipment.

关 键 词：数值模拟 中厚板 控制冷却 集管 

分 类 号：TK72[动力工程及工程热物理—流体机械及工程]