基于相变蓄冷的核电厂主控室非能动冷却系统
Passive cooling system of main control room in nuclear power plants based on phase change cool storage
摘要：
为提高现有核电厂主控室紧急可居留系统的蓄冷能力及热舒适性水平,提出了基于定形相变蓄冷材料的核电厂主控室非能动冷却系统。基于主控室热负荷分布情况,该冷却系统在主控室顶板与吊顶之间、内墙面、地板底面及循环风道内,针对性地布置相应的含有定形相变材料的非能动冷却装置,进而实现事故工况下对主控室温度的精确控制。该非能动冷却系统无需引入额外冷源和管道,可靠性强,同时不破坏主体结构,且可灵活布置,解决了现有主控室非能动热阱时间余量小、热舒适性差的问题。
Abstract：
In order to improve the cool storage capacity and thermal comfort level of the emergency habitable system of the main control room in the existing nuclear power plant, a passive cooling system of the main control room in the nuclear power plant based on the shaped phase change cool storage materials is proposed. Based on the distribution of heating load in the main control room, the cooling system is targeted to arrange the corresponding passive cooling devices containing shaped phase change materials between the roof and the ceiling, the interior wall, the bottom surface of the floor and the circulating air duct in the main control room, so as to realize the accurate control of the temperature of the main control room under the accident condition. The passive cooling system does not need to introduce additional cold sources and pipes, has strong reliability, does not damage the main structure, and can be flexibly arranged. It solves the problems of small time margin and poor thermal comfort of the passive heat trap in the existing main control room.
Keywords:nuclear power plant; phase change cool storage; passive cooling system; main control room; emergency habitable system; shaped phase change material