核级换热器防冻能力的研究与产品开发
Research and product development of antifreezing capability of nuclear heat exchangers
摘要：
针对北方核电站配套暖通设备用换热器在严寒天气下易冻伤的问题，通过对换热器排水能力的分析，提出结构优化方案。在满足抗震和热工性能要求的前提下，实现换热器在非能动状态下内部水份的自然排空。
关键词：换热器核级防冻非能动自然排空
Abstract：
To solve the easy frostcracking problem of nuclear power plant HVAC heat exchangers in severe cold weather, proposes a structure optimization scheme based on the analysis of drainage capacity. To meet the requirements of antiseismic and thermal performance, realizes the natural emptying of inner water in the passive state.
Keywords:heatexchanger,nucleargrade,antifreezing,passivestate,naturalemptying