Study on Key Technologies of Passive Containment Heat Removal System for HPR1000

IF 11.6 1区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Pub Date : 2025-09-01 DOI:10.1016/j.eng.2025.03.034

Ji Xing , Li Gao , Feng Liu , Zhongning Sun , Li Li , Xinli Yu , Yawei Mao , Haozhi Bian , Zhaoming Meng , Ming Ding

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Abstract

The passive containment heat removal system (PCS) is one of the key passive safety systems of China’s third-generation advanced pressurized water reactor—Hua-long Pressurized Reactor (HPR1000), used to prevent overpressure of large concrete containment under severe accident scenarios. This paper provides an overview of the development of the HPR1000 passive containment heat removal system, including its operating principles and configuration, internal heat exchanger design, feasibility tests, engineering-scale PCS verification tests, comprehensive tests on PCS–containment coupling characteristics, among other key supporting studies. These extensive studies demonstrated that the PCS of HPR1000, which is designed based on flashing-driven open natural circulation and efficient condensation heat transfer theory, can work effectively and ensure the integrity of the containment under various accident scenarios. The system has been applied to Fuqing No. 5 and No. 6 nuclear power units and Zhangzhou No. 1 and No. 2 units of China’s first million-kilowatt third-generation nuclear power HPR1000. It is also applied to K-2/K-3 units of Karachi Nuclear Power Plant in Pakistan.

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HPR1000被动安全壳排热系统关键技术研究

被动安全壳排热系统（PCS）是中国第三代先进压水堆——华龙压水堆（HPR1000）的关键被动安全系统之一，用于防止大型混凝土安全壳在严重事故情况下的超压。本文介绍了HPR1000型被动安全壳排热系统的发展概况，包括其工作原理和配置、内部换热器设计、可行性试验、工程规模PCS验证试验、PCS -安全壳耦合特性综合试验等关键配套研究。这些广泛的研究表明，基于闪动驱动开式自然循环和高效冷凝传热理论设计的HPR1000 PCS能够在各种事故场景下有效工作并保证安全壳的完整性。该系统已应用于中国首台百万千瓦第三代核电HPR1000的福清5号、6号机组和漳州1号、2号机组。它也适用于巴基斯坦卡拉奇核电站的K-2/K-3机组。

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来源期刊

Engineering Environmental Science-Environmental Engineering

自引率

1.60%

发文量

335

审稿时长

35 days

期刊介绍： Engineering, an international open-access journal initiated by the Chinese Academy of Engineering (CAE) in 2015, serves as a distinguished platform for disseminating cutting-edge advancements in engineering R&D, sharing major research outputs, and highlighting key achievements worldwide. The journal's objectives encompass reporting progress in engineering science, fostering discussions on hot topics, addressing areas of interest, challenges, and prospects in engineering development, while considering human and environmental well-being and ethics in engineering. It aims to inspire breakthroughs and innovations with profound economic and social significance, propelling them to advanced international standards and transforming them into a new productive force. Ultimately, this endeavor seeks to bring about positive changes globally, benefit humanity, and shape a new future.