二次侧非能动余热排出系统启动特性研究  

Study on the Start-up Characteristics of Secondary Passive Residual Heat Removal System

作　　者：孙奥[1] 程杰 朱东保[2] 田春平 王建军[1] 阎昌琪 SUN Ao;CHENG Jie;ZHU Dongbao;TIAN Chunping;WANG Jianjun;YAN Changqi(Heilongjiang Provincial Key Laboratory of Nuclear Power System&Equipment,Harbin Engineering University,Harbin 150001,China;Wuhan Second Ship Design&Research Institute,Wuhan 430064,China)

机构地区：[1]哈尔滨工程大学黑龙江省核动力装置性能与设备重点实验室,哈尔滨150001 [2]武汉第二船舶设计研究所,武汉430064

出　　处：《动力工程学报》2023年第12期1592-1598,共7页Journal of Chinese Society of Power Engineering

摘　　要：以海洋核动力平台为应用背景,针对其二次侧非能动余热排出系统设计方案,设计搭建了模拟实验装置,研究了系统的启动特性,分析了系统在启动过程中重要参数的变化规律。结果表明:在所研究的工况范围内,二次侧余热排出系统均能够建立稳定的自然循环,有效导出蒸汽发生器中U型管输入的热量;在二次侧非能动余热排出系统启动过程中,初始投运压力只会影响系统达到渐进稳态的过程,而不会对系统的最终稳定状态产生影响;冷却水箱中的热分层是影响余热排出换热器出口温度演变特性的重要因素。Taking the offshore nuclear power platform as the application object,based on the design scheme of the secondary passive residual heat removal system(PRHRS),an experimental facility was designed and built.The start-up characteristics of the system were studied,and the evolution of important parameters of the system during the start-up process was analyzed.Results show that the PRHRS can establish stable natural circulation and effectively remove the heat generated from the U-type tubes in the steam generator under the studied working conditions.During the start-up process,the initial operation pressure only affects the process of the system reaching the asymptotic steady-state,but not the final steady-state of the system.The thermal stratification in the cooling water tank plays an important role in the evolution characteristics of the temperature at the outlet of the passive residual heat removal heat exchanger.

关 键 词：非能动余热排出系统 自然循环 启动特性 热分层 

分 类 号：TP33[自动化与计算机技术—计算机系统结构]