焦点访谈丨大国重器再攀高 “硬核”科技新跨越 ——我国第四代核电技术研发和应用达到国际领先水平

Core Viewpoint - The Shidao Bay High-Temperature Gas-Cooled Reactor Demonstration Project represents a significant advancement in China's nuclear power technology, marking the country's transition from following to leading in the global nuclear energy sector [2][7]. Group 1: Project Overview - The Shidao Bay High-Temperature Gas-Cooled Reactor is the world's first commercially operational fourth-generation nuclear power plant, having commenced operations at the end of 2023 and achieving nearly 10,000 hours of safe and stable operation [2]. - The project is characterized by its inherent safety features, which allow the reactor to remain safe without human or mechanical intervention during severe accidents [3][4]. Group 2: Technological Innovations - The reactor utilizes high-temperature spherical fuel elements instead of traditional fuel rods, with each reactor containing 430,000 fuel balls, designed to withstand temperatures exceeding 1,620°C without releasing radioactive materials [4][5]. - The cooling system employs helium gas instead of water, contributing to the reactor's inherent safety and operational efficiency [4][5]. Group 3: Development Process - The project was initiated in 2006 as part of China's major scientific and technological initiatives, with a focus on overcoming unprecedented engineering challenges to establish a commercial-scale high-temperature gas-cooled reactor [5][6]. - A collaborative effort involving Tsinghua University, China Huaneng Group, and China National Nuclear Corporation was essential in the design, development, construction, and commissioning phases of the project [5][6]. Group 4: Industry Impact - The project has led to the development of over 1,500 unique equipment pieces, with a domestic production rate of 93.4%, showcasing China's manufacturing capabilities in the nuclear sector [6][7]. - The successful implementation of the Shidao Bay project is seen as a cornerstone for China's nuclear power industry, enhancing its global standing and innovation capacity [7].