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Safety-level DCS Response Time Testing for Unit 3 of Xudabao Nuclear Power Plant Successfully Completed

Recently, with the final test data confirmed to be accurate, the safety-level DCS (Digital Control System) response time testing for Unit 3 of Xudabao Nuclear Power Plant was successfully completed. All test results met the requirements, with no abnormal equipment actions throughout the entire process, providing reliable instrumentation and control assurance for the subsequent fuel loading and stable operation of the unit. The test lasted 14 days and covered 182 test cases, encompassing more than 1,500 functional tests for reactor trip and engineered safety features systems. As a critical step before fuel loading, the safety-level DCS response time test holds significant reference value for verifying the response performance of the unit's safety systems. To ensure the successful completion of the test, the instrumentation and control team adhered to the work philosophy of "comprehensive preparation, strong collaboration, experience feedback, and pragmatic execution," advancing all tasks in an orderly manner.

2026-08-27

Symposium on Marine Radiation Monitoring and Emergency Response Technology Exchange Successfully Held

To further enhance the technical support capability for marine radiation environment monitoring and promote scientific research innovation and practical application in marine radiation monitoring and emergency response, the National Marine Environmental Monitoring Center (hereinafter referred to as the Marine Center) recently conducted a technical exchange with the Jinan Zhongke Nuclear Technology Research Institute. The two sides engaged in comprehensive discussions on technology development, equipment application, data analysis, and standards development, focusing on the new situation and new requirements facing marine radiation environmental safety. The Marine Center systematically presented its operational system, technical capabilities, and practical experience in the field of marine radiation monitoring and emergency response. The Jinan Zhongke Nuclear Technology Research Institute highlighted its core...

2026-08-27

Guohe Series Nuclear Power Engineering Modular Quarterly Meeting and Construction Technology Innovation Application Exchange Conference Successfully Held in Qidong

On August 21, the Guohe Series Nuclear Power Engineering Modular Quarterly Meeting and Construction Technology Innovation Application Exchange Conference, hosted by Shanghai Nuclear Engineering Research and Design Institute (SNERDI) and organized by China Nuclear Industry Fifth Construction Co., Ltd. (CNF), was successfully held in Qidong, Jiangsu Province. Zhang Shoulong, Deputy General Manager and Safety Director of SNERDI, Li Jun, Deputy General Manager of China Nuclear Engineering Corporation (CNEC), and Liu Weihua, Chief Engineer of CNF, attended the meeting. More than 50 representatives from various nuclear power construction participating units gathered to discuss the innovation and practical application of nuclear power modular construction technology. At the meeting, the implementation of action items from the previous quarter was first reviewed, followed by progress reports on key work items including dry construction, plugging modularization, module design guidance manual, and multi-discipline shared rack design optimization. Each nuclear power project department then reported on quarterly work progress and subsequent work plans in turn; participating construction units including China Nuclear Industry 22nd Construction Co., Ltd., China Nuclear Industry 23rd Construction Co., Ltd., and CNF conducted thematic exchanges on modular construction, automatic welding technology, implementation of innovative technologies, and the "7050" plan (70% of all plant welding joints as prefabricated joints, and 50% of all plant prefabricated joints welded by automatic welding). Departments of SNERDI and participating partner units conducted in-depth discussions, exchanging views on key challenges in nuclear power modular construction and building consensus on technical breakthroughs. During the meeting, all attending representatives visited the Jiangsu Heneng Qidong Intelligent Manufacturing Base for on-site inspection, observing the intelligent manufacturing production line construction and gaining direct insight into the practical achievements of modular prefabrication and intelligent manufacturing processes. The meeting fully affirmed the phased achievements made by all participating units in the field of Guohe series nuclear power modular construction, pointed out that modular construction is a key driver for improving quality and efficiency in nuclear power engineering, and made arrangements for the next phase of work, emphasizing that all participating units should continue to deepen EC (Engineering-Construction) collaboration and integrated construction-installation development, and strengthen collaborative coordination to fully guarantee the high-quality construction of Guohe series nuclear power projects.

2026-08-26

The Workshop on Engineering Application of Domesticated Safety-Class DCS in Nuclear Power Projects Successfully Held

From August 20 to 21, the Workshop on Engineering Application of Domesticated Safety-Class DCS in Nuclear Power Projects, led by SNPAS, was successfully held in Shanghai. Relevant leaders and experts from Beijing Guangli Nuclear System Engineering Co., Ltd., China Nuclear Control System Engineering Co., Ltd., and Nuclear Power Institute of China attended the meeting, with a representative from the Ministry of Ecology and Environment's North China Regional Office of Nuclear and Radiation Safety Supervision dispatched to provide guidance. The meeting focused on discussions regarding the engineering qualification of domesticated safety-class DCS and the verification of their application in nuclear power engineering. Based on their practical experience, each participating organization presented their current implementation status, challenges encountered, and proposed measures. During the discussions, all parties exchanged views on quality consistency assurance measures, engineering qualification prototype representativeness, equipment qualification test items, and platform application verification, reaching multiple consensuses.

2026-08-25

The 10th Batch of Auxiliary Equipment for Shaanxi Zhonghuan's Egypt El Dabaa Nuclear Power Cooperation Project Successfully Loaded and Shipped

Recently, the 10th batch of auxiliary equipment for the Egypt El Dabaa Nuclear Power Plant cooperation project undertaken by Shaanxi Zhonghuan Machinery Co., Ltd. was successfully loaded and shipped. The smooth achievement of this key milestone marks the company's steady progress in fulfilling its obligations on key overseas nuclear power projects, representing an important phased accomplishment. According to Dong Shaohu, Director of the Production Safety and Environmental Protection Department of Shaanxi Zhonghuan: The El Dabaa Nuclear Power Plant in Egypt is not only Egypt's first benchmark nuclear power project, but also an important achievement of Chinese enterprises' deep involvement in energy construction along the Belt and Road countries. The plant is scheduled for full completion and commissioning by 2030. Shaanxi Zhonghuan has undertaken...

2026-08-24

Hainan Changjiang Nuclear Power Unit 4 500kV Reverse Power Transmission Successfully Completed

On August 19, 2026, the 500kV reverse power transmission of Unit 4 of the Hainan Changjiang Nuclear Power Phase II Project was successfully completed, marking another major milestone in the engineering construction of the unit. The 500kV reverse power transmission operation lasted approximately 15 hours. Throughout the power receiving process, equipment operated stably, all parameter indicators were excellent, protection devices acted accurately without error, and system live switching proceeded smoothly, fully achieving the established goal of successful power reception on the first attempt. The realization of this milestone fully verified that the design, manufacturing, and installation quality of the 500kV main switchyard, main transformers, high-voltage auxiliary transformers, and related auxiliary systems of Unit 4 all met the required standards. The Hainan Project Department of CNNC Engineering coordinated design, procurement, construction,...

2026-08-21

Summer Technical Symposium on High-Temperature Superconducting High-Field Magnets Successfully Held in Shanghai

On August 19, the Summer Technical Symposium on High-Temperature Superconducting High-Field Magnets was successfully held at the China Fusion Shanghai Headquarters. Yu Xuefeng, Deputy Secretary of the Party Committee and Deputy General Manager of China Fusion, and Xue Lei, Deputy Director of the Fusion Engineering Design Institute, attended the meeting. Xue Lei delivered an address on behalf of the Fusion Engineering Design Institute, extending a warm welcome to the experts present for their guidance. The symposium was moderated by Hu Xinbo, Director of the High-Temperature Superconducting Magnet R&D Department of the Fusion Engineering Design Institute. The symposium invited research institutions including the Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences, Shanghai Advanced Research Institute of the Chinese Academy of Sciences, High Magnetic Field Science Center of the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, Zhongshan Advanced Cryogenic Technology Research Institute, and Southwestern Institute of Physics of the Nuclear Industry, as well as universities...

2026-08-20

First PCS Heat Exchanger Pre-Introduction Successfully Completed at Zhejiang Jinqimen Nuclear Power Project

On August 16, the pre-introduction of the first PCS heat exchanger at the Zhejiang Jinqimen Nuclear Power Project, undertaken by China Nuclear Industry Fifth Construction Co., Ltd. (CNFC), was successfully completed. The entire introduction process was smooth and orderly, with safety and quality fully under control. The smooth pre-introduction of this PCS heat exchanger has laid a solid foundation for the subsequent modular dome lifting and overall project construction. As a core key equipment in the reactor building, the PCS heat exchanger features heavy weight, high installation precision, and significant difficulty. To ensure lifting safety, the project team organized 7 special discussions and 5 on-site surveys, sorted out preconditions, fabricated dedicated angle tooling, and clarified operation procedures and safety control points. During the lifting, management personnel provided full-time on-site supervision, with commanders and operators working in close coordination to strictly control equipment positioning. After 3 hours of continuous operation, a series of processes including equipment lifting, flipping to vertical, fine angle adjustment, and equipment pre-introduction were precisely completed, and the equipment was finally placed smoothly, marking the successful completion of the pre-introduction work.

2026-08-19

Prefabricated Module for Evaporator Compartment of Loop 3 in Internal Structure of Unit 4 at Zhangzhou Nuclear Power Plant Successfully Hoisted

At 10:18 on August 18, the prefabricated module for the evaporator compartment of Loop 3 in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant was hoisted into place, with safety and quality under control throughout the entire process. The structures above elevation 16.5 meters in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant, including the evaporator compartments, pressurizer compartment, and the roof slab of the passive reactor cavity injection tank, adopt a modular construction process featuring off-site prefabrication, integral hoisting, and precise positioning, divided into five concrete modules. The evaporator compartment module of Loop 3 hoisted this time is the first module to be lifted for Unit 4, weighing 454.289 tons, with an overall special L-shaped structure, lifted using a 3200-ton crawler crane. The hoisting operation lasted 3 hours, and Zhangzhou Nuclear Power...

2026-08-19

2026 Systematic Training Course on Radiation Safety Management Capability for the Irradiation Industry Successfully Held in Lanzhou

To thoroughly implement the Ecological Environment Code and continuously improve the standardized radiation safety management level of the irradiation industry, the 2026 Systematic Training Course on Radiation Safety Management Capability for the Irradiation Industry, hosted by the Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment (hereinafter referred to as "the Center"), was successfully held in Lanzhou, Gansu Province, from August 11 to 13. More than 80 trainees from over 60 irradiation operation, design and manufacturing, and regulatory departments across the country gathered together to study laws, regulations, and standards and share safety experience. This training closely focused on the new regulatory situation of the irradiation industry and industrial development needs, emphasizing both professionalism and practicality. The courses systematically covered the development status and trends of industrial irradiation facilities,...

2026-08-18

Module 4 of Steel Liner for Unit 3 of San'ao Nuclear Power Plant Successfully Hoisted

At 8:16 a.m. on August 15, the hoisting operation of Module 4 of the 3BRX steel liner for Unit 3 of the San'ao Nuclear Power Plant was officially launched. Under the stable operation of the 2,000-ton crawler crane of CNNC Machinery Engineering, the module successively completed a series of procedures including slewing, load-bearing travel, and alignment adjustment. After 220 minutes, the hoisting task was successfully completed. Module 4 of Unit 3 hoisted this time was integrally assembled from the fourth and fifth layers of the cylinder, with a diameter of approximately 45 meters and a height of 11.46 meters. The module features a large volume, susceptibility to deformation, and limited slewing space for the crane. The project team strictly implemented the special plan, completed site reinforcement, transport of baskets and counterweights, and crawler crane relocation in advance, organized hoisting simulation drills, and comprehensively inspected various safety hazards...

2026-08-18

Steel Containment Vessel Ring 1 of Unit 1 at Guangxi Bailong Nuclear Power Plant Successfully Hoisted into Place

At 11:38 on August 16, after 4 hours and 01 minutes of continuous and stable operation, the steel containment vessel ring 1 (CV1R) of the nuclear island of Unit 1 at Guangxi Bailong Nuclear Power Plant was successfully hoisted into place. This hoisting marks another successful installation of a key module following the CVBH and CA20 modules for Unit 1 of Bailong Nuclear Power Plant, signifying a critical breakthrough in the construction of the main structure of the nuclear island of Unit 1. The steel containment vessel consists of five major modules: the bottom head, the intermediate cylindrical shell (rings 1 to 3), and the top head, serving as the third physical safety barrier of the reactor. The CV1R hoisted this time is the core component with the largest volume and heaviest weight among the five major components of the steel containment vessel, measuring approximately 15.5 meters in height and up to 39.6 meters in maximum inner diameter, integrating equipment...

2026-08-17

Successful Hoisting of Module 3 of the Passive Containment Cooling Water Tank for Unit 4 of Zhangzhou Nuclear Power Plant

On August 15, the hoisting of Module 3 of the passive containment cooling water tank in the reactor building of the nuclear island of Unit 4 at Zhangzhou Nuclear Power Plant was successfully completed, with the entire hoisting process being safe and quality-controlled. The passive containment cooling water tank is an important component of the passive part of the containment cooling water injection system. With a total height of 22.02 meters, it features a non-uniform cross-section in an approximately fan-shaped structure and is planned as three integral modules. Module 3, hoisted this time, had a total lifting weight of approximately 132.8 tons and a height of 5.84 meters, and was positioned using a 2000-ton-class crawler crane. As the crane slowly lifted the module, through a series of precise operations including hook lifting, boom slewing, crane traveling, and luffing, Module 3 was smoothly placed onto Module 2 of the passive containment cooling water tank, with the entire process proceeding seamlessly...

2026-08-17

SPIC Haiyang Nuclear Power Unit 3 Hot Functional Test Successfully Completed

At 17:30 on August 13, the hot functional test (HFT) of Unit 3 at SPIC Shandong Nuclear Power Haiyang Nuclear Power Plant was successfully completed, laying a solid foundation for subsequent fuel loading and first grid connection of the unit. ▲Aerial view of Shandong Nuclear Power Haiyang Nuclear Power Plant. The hot functional test is the most critical non-nuclear comprehensive verification phase before nuclear fuel loading, often referred to as the "final exam" or "mock exam" before a nuclear power plant officially generates electricity. By executing a series of tests simulating actual operating conditions within the pressure and temperature ranges of normal reactor operation, it comprehensively verifies the reliability of nuclear island and conventional island systems and equipment under hot operating conditions, ensuring that relevant parameters meet design requirements. ▲On July 4, during the normal residual heat removal system (RNS) test at the heat-up platform of the hot functional test...

2026-08-15

Concrete Placement of the 16.5m Slab in the Reactor Building of Unit 4 at Zhangzhou Nuclear Power Plant Successfully Completed

At 21:58 on August 13, the concrete placement of the 16.5m slab in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant was successfully completed, with safety and quality under control throughout the process, laying a solid foundation for subsequent key path milestones such as crane availability and inner dome lifting. As the core load-bearing structure within the reactor building, the 16.5m slab of the internal structure serves as the critical support platform for the introduction, positioning, and installation of subsequent large-scale core equipment. The engineering structure features key challenges including large construction volume, staggered elevation differences, modular structural rebar installation, and high-precision installation of owner-supplied items, imposing extremely high requirements on overall construction organization, safety, and quality control. The total concrete volume placed this time was 2,297 cubic meters, with a continuous placement duration of 30.5 hours.

2026-08-15