On the afternoon of August 25, Zou Zhengyu, general manager of Qinshan Nuclear Power Co., LTD., declared that the first heavy water reactor M1 type spent fuel storage module project in Qinshan nuclear Power plant officially started construction. The authorized construction of this module is a successful example of Qinshan nuclear power plant in the introduction, digestion, absorption and innovation of the heavy water reactor unit to independent innovation, but also the brilliant practice of Qinshan nuclear power plant to be the leader in the new era, implying that our country not only mastered the dry storage technology of spent fuel in the heavy water reactor, and recognized the technological lead and catch up, At the same time, the long-term safe and stable operation capacity of the heavy water reactor unit is effectively improved.
Compared with the QM400 module previously constructed by Qinshan Nuclear Power Plant, the M1 type spent fuel storage module of the heavy water reactor has increased its storage capacity by 70% and is more economic and environmental friendly, reaching the international leading level 39bet-xì dách-phỏm miền bắc-tiến lên miền bắc-xóc đĩa-game bắn cá.
Opening ceremony presided over by the qin dynasty three factory director ming-liang wu, the ecological environment in eastern China nuclear and radiation safety surveillance level of Mr. Liu, Shanghai nuclear engineering research and design institute co., LTD., general manager wang Ming play attended the ceremony, DiErEr China nuclear industry construction co., LTD., the nuclear consulting co., LTD and other units and qinshan nuclear power related department personnel to participate in the opening ceremony.
Before the ceremony, representatives of the special group of spent fuel dry storage facilities of the heavy water reactor and the participating units gave a special report, introducing the process of developing the M1 type spent fuel storage module of the heavy water reactor and the start-up preparation. At the ceremony, the participating units have said that they will execute the responsibility for nuclear safety, carry forward the spirit of the nuclear industry in the new era, vigorously collaborate and carefully organize to assure that the first heavy water reactor M1 type spent fuel storage module is built into a high-quality project, high-quality project, with excellent results to meet the Party's twenty triumph.
The dry storage facility for spent fuel in Qinshan nuclear power heavy water reactor is the first dry storage facility for spent fuel in China, which not only solves the problem of spent fuel storage during the operation of the heavy water reactor unit, but also provides valuable experience for the design and construction of spent fuel storage facilities in Chinese nuclear power plants. Since the facility was put into operation, Qinshan Nuclear Power Station, based on the actual situation of the power plant and focusing on the long term, has continuously carried out technological improvement and innovation, and formed the "heavy water reactor poor storage facility model" of introducing, digestion, absorbing and then innovation to autonomous innovation.
It is reported that the initial heavy water reactor M1 spent fuel storage module will be completed and put into operation in August 2023.
Development of dry storage facility for spent fuel in Qinshan nuclear power heavy water reactor
Introduction and Digestion Stage (2004-2010)
In 2004, at the beginning of the project decision, Qinshan Nuclear Power Plant clearly proposed to master the dry storage technology of spent fuel of heavy water reactor through technology introduction. To this end, Qinshan Nuclear Power Plant and Shanghai Institute of Nuclear Industry established a joint working group. After various negotiations, following the principle of China's deep participation in the safety analysis and design of the project and the localization of the main equipment, Qinshan Nuclear Power Plant presented the complete set of spent fuel modular air cooling storage technology from Atomic Energy of Canada. China and Canada jointly carried out the conceptual design of the QM400 module, in which the Chinese side separately completed all the detailed design, and independently constructed and put into operation the first batch of QM400 modules 1 and 2. The storage area adopts the method of "one planning and construction in batches", which can satisfy the spent fuel storage demand of two heavy water reactor units during their 40-year operation life.
Absorption and re-innovation Stage (2011-2018)
Based on the introduction of digestion, qinshan nuclear power and nuclear engineering at the Shanghai institute joint working group combined with the construction and operation experience feedback, to carry out a series of optimization to upgrade the design to construct the second batch of 3, 4, and the third batch of 5, and 6 QM400 module, and the no. 1 module based on the analysis of test data, to carry out the thermal model of adjusting and independent review work, The modification of the heat shield design is completed. In addition, a total of 25 optimizations and improvements have been carried out on the design and manufacturing process of safeguard transport containers and storage tanks, storage modules and supporting facilities, which considerably strengthen the safety and reliability of operation. Through more than 10 years of corrosion test and demonstration analysis, the working group obtained the yearly corrosion rate and other parameters, which laid a good foundation for the continuation of the storage facility operation license in the future.
Independent Innovation Stage (2019-present)
To solve the problem in the future after heavy water reactor operation license continuation of spent fuel storage problem, qinshan nuclear power and nuclear engineering at the Shanghai institute joint working group to rely on independent innovation to develop the M1 module, by conducting heat, shielding, structure, storage barrel project analysis and special concrete mixing technology, the performance test, the degradation mechanism, and key techniques of life prediction analysis and so on, The technical scheme of M1 module is formed.
On June 27, 2022, after a comprehensive review, the National Nuclear Safety Administration officially issued the approval document for the change of Construction license for the Temporary Dry Storage Facility for Spent fuel of Qinshan Nuclear Power Heavy Water Reactor, agreeing to construct M1 module starting from the fourth batch of modules.