高温气冷堆陶瓷堆内构件热老化试验平台开发  

Development of Thermal Aging Test Platform for Ceramic Internals of High Temperature Gas Cooled Reactor

作　　者：林泽泉[1] 王庆武 詹英杰 遆文新[1] 彭群家 龚兵 LIN Ze-quan;WANG Qing-wu;ZHAN Ying-jie;TI Wen-xin;PENG Qun-jia;GONG Bing(Suzhou Nuclear Power Research Institute,Jiangsu Suzhou 215004,China;Huaneng Shandong Shidao Bay Nuclear Power Plant,Shandong Rongcheng 264312,China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004 [2]华能山东石岛湾核电有限公司,山东荣成264312

出　　处：《装备环境工程》2023年第4期72-78,共7页Equipment Environmental Engineering

基　　金：国家科技重大专项(2018ZX06906013)。

摘　　要：目的 开发一种试验平台模拟高温气冷堆正常工况、氧化腐蚀工况和事故工况试验条件,研究陶瓷堆内构件的氧化腐蚀行为和长期服役热老化规律。方法 通过分析高温气冷堆陶瓷堆内构件服役环境特征,确定试验平台开发技术要求,其主要部件包括氧气流量控制器、氦气流量控制器、储气罐、反应气流量控制器、气体预热器、高温反应炉、气体循环泵、氦气纯化器、纯水罐、蠕动泵、真空泵、排气冷肼、在线气相色谱仪、在线露点仪等。结果 该试验平台可精确控制在冷却剂氦气中混入微量的O_(2)、H_(2)O杂质,研究反应时间、温度等因素的影响,还可模拟高温堆正常工况和蒸汽发生器传热管破裂进水事故工况条件,开展长达3000h以上的连续热老化试验。结论 该试验平台具有高精度、大尺寸、耐高温、耐长周期试验等优异特性,可模拟复杂多样的工况条件,开展热老化试验研究。The work aims to develop a test platform to simulate the test conditions of high temperature gas cooled reactor under normal conditions,oxidation corrosion conditions and accident conditions and study the oxidation corrosion behavior and long-term thermal aging law of ceramic reactor internals.By analyzing the service environment characteristics of ceramic internals in high temperature gas cooled reactor(HTGR),the technical requirements for the development of the test platform were determined.The main components included oxygen flow controller,helium flow controller,gas storage tank,reaction gas flow controller,gas preheater,high temperature reactor,gas circulating pump,helium purifier,pure water tank,peristaltic pump,vacuum pump,exhaust cold hydrazine,on-line gas chromatograph and on-line dew point instrument.The test platform could accurately control the trace amount of O_2 and H_2O impurities mixed into the coolant helium,and study the effects of reaction time,temperature and other factors.It could also simulate the normal conditions of high temperature reactor and the accident conditions of steam generator heat transfer tube rupture and water inflow,and carry out continuous thermal aging test for more than 3 000 h.Conclusively,the test platform has excellent characteristics such as high precision,large size,high temperature resistance and long-term test.It can simulate complex and diverse working conditions and carry out thermal aging test research.

关 键 词：高温气冷堆 陶瓷堆内构件 氧化腐蚀 热老化 试验平台 

分 类 号：TL37[核科学技术—核技术及应用]