稳态条件下稳压器喷淋降压模型及数值分析  

The Research of the Model and Numerical Analysis on Spraying and Depressurizing in Pressurizer under Steady Conditions

作　　者：邓丰[1] 黄燕[1] 李焕鸣[1] 谈国伟[1] DENG Feng;HUANG Yan;LI Huanming;TAN Guowei(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu of Sichuan Prov.610213,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计重点实验室

出　　处：《核科学与工程》2019年第5期708-714,共7页Nuclear Science and Engineering

摘　　要：本文基于非稳态球形传热模型,在单液滴与饱和蒸汽之间的传热模型的基础上,根据稳压器喷雾流量、雾化颗粒特性参数及反应堆一回路系统参数,建立了反应堆一回路系统稳压器的喷淋降压动态特性的数学模型。根据某核电机组热态功能试验时的试验条件,使用FORTRAN语言编写程序,选用迭代的方法,对稳压器喷淋降压的动态特性进行了数值模拟分析计算。计算结果表明,通过数值计算得到的喷淋降压速率与实际试验结果符合性较好。Based on the unsteady heat transfer of spherical droplet,this paper established the unsteady heat-transfer model between the single liquid droplet and saturated steam.It also established the mathematical model on pressure dynamic change during spraying in the reactor coolant system.Used iterative algorithm,the computer program according to characteristic formulation was complied by FORTRAN language.According to the test conditions during the hot function of certain nuclear power station,the dynamic characteristics of depressurization was calculated.For depressurization rate of pressurizer induced by spraying,the results obtained by numerical calculation and the actual test results are consistent.

关 键 词：稳压器 雾化液滴 非稳态导热 降压 数值计算 

分 类 号：TL331[核科学技术—核技术及应用]