一回路系统中冷却剂流动形阻分析  

Analysis of Relevant Problems of Shape Flow Resistance in Nuclear Power Plants

作　　者：姚彦贵[1] 施杨[1] 张锴[1] 路铭超[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核动力工程》2015年第5期83-86,共4页Nuclear Power Engineering

摘　　要：核电厂一回路系统中冷却剂流动阻力是反应堆一回路系统设计的重要依据。通过典型突扩流道的算例研究,阐明流体流动产生"形阻"的原因;并通过在突扩管下游加设均匀孔板和突缩管2种阻力件结构,研究下游阻力件对总流阻的影响,获得总流阻增大和减小的结果。因此,在核电厂流体系统的流阻分析过程中,应对上下游阻力件之间的耦合影响效应作详细的分析。对于具体问题,能否采用流阻分段求和的方法计算总的流阻,必须进行具体分析和论证,避免出现差错。In the nuclear power plant, the flow resistance is an important factor for the design of the primary system. This paper clarified the cause for the shape flow resistance by analyzing the sudden expansion flow. The effect of the downstream resistance object on the total resistance was also examed by analyzing the flow resistance of the sudden expansion configuration close to a uniform pore plate or a sudden contraction configuration. The designers were advised to analyze the coupling effect of the upstream and downstream resistance objects in detail. To a specific problem, special analysis and demonstration were necessary to make sure whether the total resistance was equal to the sum of the resistance of each object or not.

关 键 词：流动形阻 下游阻力件 总流阻影响 

分 类 号：TL933[核科学技术—辐射防护及环境保护]