
第34卷第4期 2014年12月
核科学与工程
Nuclear Science and Engineering
自然循环蒸汽发生器瞬态热工
水力建模与分析
邱桂辉
(中广核工程设计有限公司,广东深圳518124)
Vol.34No.4
Dec.2014
摘要:应用瞬态分析专用程序建立了CPR1000蒸汽发生器几何模型,对CPR1000蒸汽发生器在功率运行期闻停运一台主泵时的热工水力瞬态响应、主蒸汽管道破裂和蒸汽/主给水流量同时十10%阶联扰动工况下的瞬态响应进行了模拟与分析,获得了蒸汽发生器内部热工水力参数如流量、温度、换热系数的
响应特性,分析结果表明,瞬态分析模型满足蒸汽发生器设计爵态分析的要求,关键调:自然循环;蒸汽发生器;瞬态;热工水力
中图分类号:TL353
文章标志码:A
文章编号:0258-0918(2014)04-0505-06
Modeling and Analysis of Transient Thermal Hydraulic
CharacteristicforNaturalCirculationTypeSteamGenerator
QIU Gui-hui
(China Nuclear Power Design Company Ltd. , Shenzhen of Guangdong Prov. 518124, China)
Abstract: This paper discusses the modeling and analysis of transient thermal hydraulic characteristicforCPR1ooosteamgeneratorbyusinga one-dimensioncode.The dynamic responses of the steam generator are simulated during the transient condition initiated bya reactor coolantpump shutdown without reactortrip and main steam line break.The density wave oscillation phenomenon was observed duringthe transient initiated by increasing the feed and steam flow by 1o% over a period of 0. 5 seconds and keep constant thereafter. As a result, the model meets the requirement of transient analysis and fatigue analysis for the steam generator.
Key words: natural circulation; steam generator; transient; thermohydraulic
瞬态热工水力分析是蒸汽发生器设计的一道重要流程,它研究蒸汽发生器内部热工水力参数在核电厂瞬态工况下的响应特性,为设备应力分析提供流量、温度、换热系数时程曲线等
收稿日期:2013-10-8;修回日期:2013-12-22
输人参数。
许多软件可以用于蒸汽发生器瞬态特性模
拟,包括蒸汽发生器瞬态分析专用程序和一此系统软件。西屋TRANFLO程序可用于蒸汽
作者简介:邱桂辉1984一),男,福建人,工程师,本科,现主要从事蒸汽发生器热工水力分析工作
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