基于CFD的阀门保温层传热仿真分析  

Heat Transfer Simulation Analysis of Valve Insulation Layer based on CFD

作　　者：曹思民 陈志辉[1] 王保平[1] 杨灵均 侯丽强 金远[1] 张峰 金星硕 CAO Si-min;CHEN Zhi-hui;WANG Bao-ping;YANG Ling-jun;HOU Li-qiang;JIN Yuan;ZHANG Feng;JIN Xing-shuo(Key Laboratory of Nuclear Reactor System Design Technology,Nuclear Power institute of China Institute,Chengdu 610041,Sichuan,China;Shenyang Agricultural University,Shenyang 110000,Liaoning,China;China Shipbuilding Bohai Shipyard,Dalian 125000,Liaoning,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都610041 [2]沈阳农业大学,辽宁沈阳110000 [3]中国船舶渤海造船厂,辽宁大连125000

出　　处：《阀门》2024年第6期772-775,共4页VALVE MAGAZINE

摘　　要：非能动二次侧余热排出(PRS)系统的蒸汽管道与主蒸汽管道相连,给水管线与PRS系统凝水管线相连。在开展系统热工流体分析时发现,若非能动二次侧余热排出系统蒸汽管线与二回路主蒸汽管线之间的蒸汽隔离阀常开,高温蒸汽直接作用于阀门,加上保温层的作用阻碍阀门散热,可能会导致蒸汽隔离阀内部温度过高,引起阀门电装无法正常动作。本文计算分析了PRS系统蒸汽隔离阀带保温层状态下的传热情况,判断阀门在高温流体下是否能保证电机的可用性。The steam pipeline of the passive cooling system on the secondary side of the steam generator is connected to the main steam pipeline,and the condensate pipeline is connected to the auxiliary feed-water system pipeline.When conducting thermal fluid analysis of the system,it was found that if the i-solation valve between the steam pipeline and the main steam pipeline of the PRS system is normally open,high-temperature steam directly acts on the valve,and the insulation layer hinders valve heat dis-sipation,which may cause the internal temperature of the steam isolation valve to be too high,causing the valve electrical device to be unable to operate normally.This article calculates and analyzes the heat transfer of the steam isolation valve with insulation layer in the PRS system,and determines whether the valve can ensure the availability of the motor in high-temperature fluids.

关 键 词：核电厂 CFD 蒸汽隔离阀 保温层 二次侧非能动余热排出系统(PRS) 

分 类 号：TH134[机械工程—机械制造及自动化]