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针对大亚湾核电站原始设计中反应堆余热排出系统(RRA)的入口隔离阀控制逻辑的设计不满足单一故障的情况,提出增加2台压力变送器的改进方案。通过定量化计算,评价改进方案对RRA及机组堆芯损坏的影响。
Aiming at the design of inlet isolation valve control logic of Reactor Waste Heat Recovery System (RRA) in the original design of Daya Bay Nuclear Power Station which does not meet the single fault condition, an improved scheme of adding two pressure transmitters is proposed. Through quantitative calculation, evaluate the impact of the improvement program on the damage of RRA and the reactor core.