一种电气贯穿件性能测试方法及系统

By building irradiation and thermal aging models, the aging process of electrical penetrations in nuclear reactors is simulated, solving the problem that existing technologies cannot assess the long-term stability of electrical penetrations, and achieving accurate prediction of their lifespan and improved safety.

CN121435507BActive Publication Date: 2026-07-17ZHONGLAN LIANHAI (JIANGSU) ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot simulate the aging process of electrical penetrations under strong radiation conditions, making it impossible to accurately assess their long-term stability and safety in nuclear reactors, thus affecting reactor maintenance plans.

Method used

An irradiation aging life prediction model and a thermal aging state assessment model were built. A three-dimensional model was generated through finite element analysis to simulate the aging process of electrical penetrations under radiation and temperature changes. Combined with changes in insulation and mechanical properties, the changes in insulation resistance and tensile length were predicted to determine the aging trend and failure time.

Benefits of technology

Accurately predicting the service life of electrical penetrations in nuclear reactors can reduce safety hazards, avoid premature replacement or repair, and improve the stability and reliability of reactor operation.

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Abstract

本发明公开了一种电气贯穿件性能测试方法及系统,涉及电气贯穿件测试领域,该方法包括:搭建辐照老化寿命预测模型,利用辐照老化寿命预测模型分析电气贯穿件的累积辐射剂量,根据累积辐射剂量获取电气贯穿件的绝缘性能变化趋势;搭建热老化状态评估模型,基于热老化状态评估模型判断电气贯穿件的热老化变化趋势,并根据热老化变化趋势评估电气贯穿件的作用失效时间;将绝缘性能变化趋势与作用失效时长作为运行状态指标,分析电气贯穿件应用在一体化小型反应堆上的可靠性,优化电气贯穿件构件。本发明通过提前掌握电气贯穿件的使用状态和老化趋势,避免了过早更换或者维修操作,节省了设备维护的成本。
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Citation Information

Patent Citations

  • Insulating material service life prediction method and device, storage medium and computer equipment

    CN119291401A

  • Evaluation method and test device for combined stress aging state of hot chamber high-voltage electrical penetration assembly

    CN120507579A