摘要
结合实际工况参数,采用有限元分析工具ANSYS软件,研究了辊式淬火机淬火冷却系统集管进水方式、均流结构等对喷水系统流量分布的影响.分析表明,中间进水形式的集管可形成一定的中凸水量分布,易于获得较为合理的水量分布;集管内的隔板阻尼可较明显地改善喷嘴射流速度分布的均匀性.并以自主开发的淬火机缝隙喷嘴结构为例,分析了缝隙射流的流动特性,模拟表明,所开发的缝隙喷嘴结构出口射流沿喷嘴长度方向的速度分布较为均匀,紊动度小,有利于保证淬火钢板的冷却均匀性.将开发的淬火冷却系统应用于生产实践,取得较好的使用效果.
According to the actual process parameters, the effect of different header inlets and flow deflectors on water flow distribution in the quenching machine was using the software FEM ANSYS. The results obtained through numerical simulation indicated that the header with middle water inlet can form the central convex water distribution to a certain extent along the deflector width so as to acquire the reasonable water flow distribution easier than terminal inlet. The damping effect due to flow deflectors in header can significantly improve the sprinkled flowrate distribution. Taking the slot nozzle we developed as an example, the flow properties of water jet in slot were analyzed. Simulation results revealed that the flowrate distribution of water jets from the slot nozzles is quite uniform with small turbulence, thus benefiting the homogeneity during cooling the plates being quenched. The water-sprinkled cooling system has been applied successfully to the roller quenching machine with its favorable performance proved.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第11期1613-1616,共4页
Journal of Northeastern University(Natural Science)
基金
国家科技支撑计划项目(2006BAE03A08)
关键词
中厚板
辊式淬火机
淬火冷却系统
流场模拟
结构设计
steel plate
roller quenching machine
simulation
constructional design water-sprinkled cooling system
flow field
