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为满足 10MW高温气冷堆 (HTR 10 )控制系统分析设计的需要 ,分析了HTR 10螺旋管式直流蒸汽发生器内两相流动和传热的实际过程 ,根据建模的要求和可能获得的结构数据 ,选择四方程漂移模型来描述螺旋管内两相流现象 ;经过仿真试算与实验总结 ,确定了模型中关键的结构关系式和传热工况的判断逻辑 ,以此为基础 ,建立了可反映直流蒸汽发生器在正常功率运行范围内动态特性的动态数学模型。通过对典型工况的动静态仿真计算和研究分析 ,表明所得的结果与理论定性分析和实验吻合 ,从而证明了该模型的正确性。所建立的动态数学模型还可以用于其他螺旋管式直流蒸汽发生器的研究设计
In order to meet the need of HTR 10 control system analysis and design, the actual process of two-phase flow and heat transfer in a HTR 10 coiled-tube DC steam generator was analyzed. According to the modeling requirements and possible structures Data, select the four-equation drift model to describe the phenomenon of two-phase flow in the spiral pipe; after the simulation trial and the conclusion of the experiment to determine the key structural relationships in the model and determine the logic of heat transfer conditions, as a basis for the establishment of the Dynamic mathematical model reflecting the dynamic characteristics of the DC steam generator in the normal operation range of power. Through the dynamic and static simulation calculation and research analysis of typical working conditions, the results obtained are in good agreement with the theoretical qualitative analysis and experimental results, which proves the correctness of the model. The established dynamic mathematical model can also be used for other spiral-type DC steam generator research and design