基于密度锁的非能动余热排出系统设计及验证分析  

Design and Analysis on Passive Residual Heat Removal System Based on Density Lock

作　　者：陈薇[1] 严春 阎昌琪[1] 谷海峰[1] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001 [2]华能山东石岛湾核电开发有限公司,山东荣成264312

出　　处：《原子能科学技术》2011年第10期1203-1207,共5页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(50776022)

摘　　要：提出了一种新型非能动余热排出系统设计方案,该方案以密度锁技术作为基础,采用改变压力调节回路流量,并保持循环回路内有高温工质流动的方式,建立密度锁内水力平衡关系,维持主回路和余热排出回路的隔离。以AP1000主冷却剂系统为载体,用RELAP5/MOD3.2程序分析了正常工况下,非能动余热排出系统的运行特性。结果表明:以密度锁内流体温度作为控制变量对调压泵转速进行调节,可逐渐建立密度锁内水力平衡关系,实现非能动余热排出系统的启动;稳态运行期间,反应堆运行参数改变时,在控制系统反馈作用下,密度锁仍能维持"封闭"状态,保证主回路和余热排出回路隔离。A new passive residual heat removal system（PRHRS） based on density lock was designed.By changing mass flux in pressure-adjustment loop and maintaining high temperature water flowing in circular loop,hydraulic balance can be built in density lock,which can separate main loop away from heat removal loop.Based on AP1000 reactor coolant system,the characteristics of PRHRS on normal conditions were analyzed by using RELAP5/MOD3.2 code.It is shown that hydraulic balance can be built in density lock and the PRHRS can be started up successfully by controlling pump speed in pressure-adjustment loop,and during normal conditions,if the parameters of reactor changes,the density lock can also be ＂locked＂ under the feedback control of the controlling system,which can ensure primary loop away from PRHRS.

关 键 词：非能动余热排出系统 密度锁 RELAP5/MOD3.2程序 

分 类 号：TL364[核科学技术—核技术及应用]