【摘要】 “双碳”目标及环境友好型发展模式的提出推动了包含核能在内的新能源行业高速发展。相对于传统密封而言，核电领域所涉及的高温、高压、高辐照恶劣工况及其高安全性需求，对核电装备密封技术与材料提出了极大挑战。针对核电装备中的密封技术，重点介绍了核主泵密封，垫圈密封以及贯穿件密封的发展现状及存在问题。密封材料决定了密封组件的应用“上限”,密封材料涉及金属材料、无机非金属材料以及聚合物材料。密封运行状态监测对密封组件可靠性以及结构优化起到至关重要的作用，通过大量运行数据积累，核电密封故障预测及诊断将成为可能。同时，还分析了现存核电密封技术的发展“瓶颈”,加工工艺及诊断手段均制约着当前发展。基于现有研究基础，预测了未来核电密封领域的发展方向。更多还原

【Abstract】 The proposal of the carbon peaking and carbon neutrality goals and environment-friendly development model has promoted rapid development of the new energy industry including nuclear energy. In the field of nuclear power, it is a great challenge for the sealing equipment different from the traditional ones, because of the harsh working conditions of high temperature, high pressure and high irradiation and the demand for high safety. Focusing on the sealing technology in nuclear power equipment, this article focuses on the development status and existing problems of primary pump sealing, gasket sealing, and penetration sealing. The sealing material determines the upper limit of the application of sealing components, which involves metal materials, inorganic non-metallic materials, and polymer materials. The monitoring of sealing operation status plays a crucial role in the reliability and structural optimization of sealing components. Through the accumulation of a large amount of operating data, prediction and diagnosis of nuclear power sealing faults will be possible. Also, the development bottleneck of existing nuclear power sealing technology is reviewed. The processing technology and diagnostic methods are both constraining the current development. Based on the current research, the development direction of the future nuclear power sealing has been predicted.更多还原