核电站稳压器波动管热分层抑制及热疲劳预警方法

By filling the surge tube of a nuclear power plant pressurizer with a porous medium and optimizing the porosity gradient, combined with a genetic algorithm and an LSTM network model, the problems of thermal stratification and thermal fatigue in the surge tube were solved, achieving thermal stratification suppression and intelligent early warning, thus improving safety and lifespan.

CN116504429BActive Publication Date: 2026-07-17XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Filing Date
2023-04-19
Publication Date
2026-07-17

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Abstract

本发明公开了一种核电站稳压器波动管热分层抑制及热疲劳预警方法，属于核电站稳压器波动管热管理技术领域，公开一种基于多孔介质填充的波动管热分层抑制装置，其波动管水平换热段填充多孔介质。多孔介质可减小流体空间衍化尺度，弱化自然对流，有效破坏流动边界层并形成流体扰动，抑制管壁热边界层的发展。此外，多孔介质可将热量从波动管顶部直接传导至底部，减小上下壁面温差，缓解管壁热应力，同时强化波动管的力学结构性能。本发明还提出了多孔介质梯度孔隙率强化传热方法，并采用遗传算法优化孔隙分布特征。基于相似原理扩展实验样本数，结合人工智能训练实验模型和工程应用模型，最终实现波动管热疲劳的高效智能预警。
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