因电网调峰能力不足,红沿河核电厂2号机组首循环运行过程中,于2014年1~3月进行了卸料不换料停机检修,再启动阶段进行了临界、零功率和升功率物理试验,验证了循环寿期中反应堆重要堆芯设计参数.该文叙述了红沿河2号机组反应堆首循环寿期中卸料不换料后启动物理试验理论计算与现场试验,验证了寿期中启动物理试验理论计算值与实测结果的符合程度,分析了反应堆相关参数在寿期初与寿期中随燃耗变化特性.试验结果表明,理论预计值与实测结果符合良好,偏差满足验收准则.%Due to insufficient peak regulation capacity of the first cycle of operation, Hongyanhe nuclear power plant Unit Ⅱ were unloading downtime without refueling January to March 2014,and then start the critical phase,and zero power physical tests to verify the circulation lifetime of the reactor core design parameters important. This paper describes the Hongyanhe Unit Ⅱ First Cycle MOL no refueling start physical test theory and experiments, the lifetime starts validated physical test theoretical calculations and experimental results of the degree of compliance,analysis of the reactor the relevant parameters in the beginning of life and the lifetime characteristics change with burnup. The test results show that the theoretical expected value and the measured results are in good agreement,deviation meet the acceptance criteria.
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