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surging news reporter Yang Yang

Chinese mainland's first nuclear power station operation license has been approved. The official website of the Ministry of ecological environment recently issued a notice that, in accordance with the relevant requirements of the nuclear safety law of the people's Republic of China and the regulations of the people's Republic of China on the safety supervision and administration of civil nuclear facilities, and with the approval of the state nuclear safety administration, the operation license of unit 1 of Qinshan nuclear power plant is allowed to be extended until July 30, 2041. From the first nuclear power unit that applied for continuous operation to the extension of operation license, Qinshan nuclear power, known as "China's nuclear power mother machine", once again achieved a historic "zero breakthrough"

Qinshan Nuclear Power Plant No. 1 is the first 300 thousand kilowatt class nuclear power plant of China, which was designed, built and operated in operation. It was successfully connected to the nuclear power plant in December 15, 1991. It ended the history of nuclear power in Chinese mainland, and the initial design life was 30 years. The unit was designed and built in the 1980s, but after being connected to the grid and put into operation, it continues to carry out technical transformation and upgrading, which is equivalent to continuous "strong physique" < p > the surging news learned that up to now, Qinshan nuclear power base has 9 nuclear power units, which have operated safely for 138 reactors per year, and the operation performance of 9 units has been stable for many years, which is at the world advanced level. The World Association of nuclear power operators (WANO) performance index, an important international index to measure the safety level of nuclear power, shows that in 2020, the WANO comprehensive index of 8 units in Qinshan nuclear power base will have full scores, ranking first in the world According to the statistics on the official website of the World Nuclear Association (WNA), the extension of the validity period of the operation license of the nuclear power plant is a common international practice. According to the relevant data of the International Atomic Energy Agency (IAEA), by the end of 2020, there were 442 nuclear power units in operation worldwide, with a total of 104 units operating continuously for more than 40 years (the design life of general nuclear power is 40 years) < p > it must be emphasized that the application for continued operation is not a surprise work before the expiration of the nuclear power plant operation license. To realize extended operation, regular safety review and aging management must be carried out in the operating units, and a large number of basic research must be carried out in the replacement (transformation) strategy and license renewal of relevant equipment of the power station, which is supported by a large number of technical reserves and basic research. International practice over the past 20 years has proved that if the nuclear power plant continues to operate beyond the time specified in the original design or license, it must undergo systematic in-depth and rigorous demonstration by the nuclear regulatory department, and the operation safety of the nuclear power plant will not be "compromised" < p > some experts in the field of nuclear power told surging news that on the basis of a lot of investigation and research, China's National Nuclear Safety Administration issued a technical policy to guide nuclear power plants to carry out the renewal of operation license in 2015. In this technical policy, the National Nuclear Safety Administration defines the technical route for the continuation of operation license of nuclear power plants, including the demonstration basis of safety assessment, documents and contents to be submitted, referenced standards and specifications, safety improvement requirements, etc. The technical policy is a programmatic document for China's nuclear power plants to carry out the application for renewal of operation license, which comprehensively considers many factors. "When making decisions, the operating unit shall consider the operation of the nuclear power plant, conduct demonstration, analysis and verification according to the nuclear safety standards, comprehensively evaluate the operation status of the nuclear power plant, equipment aging management and other factors, and submit an application to the national nuclear safety administration." < / P > < p > Qinshan nuclear power officially started the continuous operation of unit 1 in 2014. Surging news was learned from reliable sources that as the earliest construction unit in Chinese mainland, Qinshan nuclear power plant has been upgrading and upgrading for many years, and it has maintained good condition through on-line monitoring, regular testing, regular inspection, regular replacement and preventive maintenance. At the same time, according to the requirements of laws and regulations to carry out regular safety review every 10 years, Qinshan nuclear power plant has completed three regular safety reviews. For the weaknesses found in each review, the safety evaluation is carried out through the safety analysis methods of determinism and probability theory, and practical and feasible improvement measures are formulated. The review results show that the organization of Qinshan nuclear power plant is reasonable, the procedures are complete, the project management and quality control are effective, the operation status and transformation of the power plant meet the requirements of the design safety benchmark, comply with the current safety regulations, standards and good practices, and have the conditions for subsequent safe operation < p > < p > China Nuclear Power Co., Ltd. (CNNP, 601985) said in the announcement on the approval of the extension of the operation license of unit 1 of Qinshan nuclear power plant that the company will implement the nuclear safety responsibility in strict accordance with the requirements of the reply document of the Ministry of ecological environment, and adhere to the principle of "safety first" in the continuous operation of unit 1 of Qinshan nuclear power plant, Comply with the provisions of the operation license to ensure the safe operation of unit 1 of Qinshan nuclear power plant < p > as the first nuclear power unit approved for the renewal of operation license, unit 1 of Qinshan nuclear power plant fills the technical gap and has demonstration value for subsequent units. It has a far-reaching impact on the construction of a complete set of technical system and evaluation methods for the renewal of operation license in China, promotes the establishment and improvement of the standard system for the renewal of operation license of nuclear power plants in China, and cultivates a team of professionals The realization of the goal of "double carbon" is a concrete measure to build a nuclear power. < / P > < p > "the performance of nuclear reactors does not show an age-related change trend." in the world nuclear performance report recently released by the World Nuclear Association, "the average capacity factor of nuclear reactors has not changed significantly with age in the past five years."