蒸汽发生器一级汽-水分离器性能数值研究

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Numerical Study on Performance of Primary Steam Separator in Steam Generator

1. Shanghai Nuclear Engineering Research and Design Institute, Shanghai, 200233, China;
2. Shanghai SuperComputer Center, Shanghai, 201203, China

摘要: 采用计算流体力学(CFD)方法,应用欧拉双流体模型对核电厂蒸汽发生器(SG)一级汽-水分离器性能进行模拟。研究循环倍率、叶片升角和叶片轴向位置等因素对压降、分离效率和蒸汽湿度的影响规律。计算结果表明:对所计算的叶片,压降随着叶片升角的增加逐渐减小;叶片升角在30°时,分离效率最好且出口蒸汽湿度最小,存在一个最佳的叶片轴向位置。
- 一级汽-水分离器 /
- 两相流动 /
- 性能研究
Abstract: The simulation is conducted on primary steam separator in steam generator of nuclear plant by using two-fluid model based on CFD theory.The effects of mass flow rate of water and swirl vane configuration on the separation efficiency,circulation ratio,humidity and pressure drop performance were investigated.The results show that the pressure drag decreases with the increasing of blade angle,30 degree blade angle corresponds the best separation efficiency and lowest humidity.Meanwhile,there is an optimum blade fixing position.
- Primary steam separator /
- Two phase flow /
- Performance study