核电汽水分离再热器用波形板分离器流场数值模拟计算  

Flow Field Numerical Simulation of Chevron Steam Separator for Moisture Separator Reheater in Nuclear Power Plant

作　　者：史志龙 矫明 应秉斌 宋印玺 SHI Zhi-long;JIAO Ming;YING Bing-bin;SONG Yin-xi(Shanghai Nuclear Engineering Research and Design Institute,Shanghai 200233,China)

机构地区：[1]上海核工程研究设计院有限公司,上海200233

出　　处：《汽轮机技术》2020年第6期414-416,共3页Turbine Technology

基　　金：国家重大专项课题:核电流体动力学软件开发(编号:2019ZX06004004)。

摘　　要：采用ANSYS软件对汽水分离再热器(MSR)用波形板进行了二维流场计算,对不同波形板的分离能力和压降进行了对比分析,据此可进行波形板选型;并对MSR的整个汽水分离区域进行了三维流场计算,得到了MSR各分离单元入口前流速和蒸汽流量分布情况,根据计算结果,可对MSR的分离结构设计进行优化,以提高设备性能。此外,采用该方法可获得电厂运行时波形板分离器的实际最高入口流速,以论证其低于该特定波形板片允许的临界速度,确保汽水分离器出口蒸汽湿度满足汽轮机组运行要求。In this paper,ANSYS software is used to calculate the two-dimensional flow field of the corrugated plate,and the separation ability and pressure drop of different corrugated plates are obtained.Based on this,the selection of corrugated plates can be studied.Furthermore the three-dimensional flow field of the steam water separation area is calculated,and the velocity and steam flow distribution in front of the inlet of each MSR separation unit are obtained.According to the results,the separation structure design of MSR can be optimized to improve the performance of the equipment.In addition,the actual maximum inlet velocity of the chevron separator can be obtained by using this method to demonstrate that it is lower than the allowable critical velocity of the specific corrugated plate,so as to ensure that the steam humidity at the outlet of the steam water separator can meet the operation requirements of the steam turbine unit.

关 键 词：汽水分离再热器 波形板 分离器 数值模拟 

分 类 号：TK223.4[动力工程及工程热物理—动力机械及工程]