Today (28th), the State Power Investment Group announced that China’s third-generation nuclear power technology “Guohe No.1” with completely independent intellectual property rights has completed research and development. “Guohe No.1” is one of China’s 16 major scientific and technological projects, representing the advanced level of the world’s three generations of nuclear power technology, and is the latest achievement of China’s nuclear power technology research and development and industrial innovation. < p > < p > Guohe No.1, also known as cap1400, is a large-scale advanced nuclear power model with independent intellectual property rights developed by China on the basis of introducing, digesting and absorbing international advanced third-generation nuclear power technology and relying on the national large-scale advanced pressurized water reactor nuclear power station. It has the characteristics of high safety factor, good economic performance and many innovative achievements. < p > < p > ZHENG Mingguang, chief engineer of nuclear energy of State Power Investment Corporation and chief designer of “Guohe No.1”, it can provide powerful power for the society. For example, it can provide 1.5 million kilowatt hours of electricity per hour for the power grid, so it can basically provide nearly 13 billion kilowatt hours of electricity per year, and it can also provide heat for the society in winter. < p > < p > < p > < p > “Guohe No.1” started its R & D in 2008 and spent 12 years in tackling key scientific problems. It has built an internationally advanced third-generation nuclear power independent innovation system and industrial chain supply system, filling a number of technical and technological gaps in China’s nuclear power industry, and promoting the overall upgrading and upgrading of China’s nuclear power industry and technology. Hao Hongsheng, director of the major special project office of state power investment in nuclear power: 477 units participated in the research and development of the whole project, and more than 26000 engineering designers participated in it. We believe that this is an all-round improvement from the second generation to the third generation. < p > < p > < p > the design life of guohe-1 nuclear power unit is 60 years, and the probability of serious accident is 100 times lower than that of the second generation nuclear power unit. The annual power generation capacity of a single unit can meet the power demand of more than 22 million residents, and the emission of greenhouse gases such as carbon dioxide can be reduced by more than 9 million tons every year. < / P > < p > at present, China has two independent third generation nuclear power technologies, namely Guohe No.1 and Hualong No.1. Guohe No.1 is one of the major national science and technology projects. Based on the introduction and absorption of international advanced nuclear power technology, Guohe No.1 nuclear power technology is developed by state power investment group with independent intellectual property rights. It adopts the “passive” safety design concept, and the single unit power reaches 1.5 million KW, which is the largest nuclear power unit independently designed in China. < p > < p > Hualong No.1 is a three generation nuclear power technology developed by CNNC and CGN on the basis of more than 30 years of nuclear power design, manufacturing, construction and operation experience in China. It adopts the safety design concept of “active + passive”, and China also has independent intellectual property rights. These two nuclear power technologies adopt different technical routes, which represent the highest level of nuclear power development capacity in China. < p > < p > < p > < p > “Guohe No.1” has been developed since 2008, and has made a lot of technical breakthroughs after 12 years of scientific research. Today, China has fully mastered the key technologies of the third generation nuclear power, and realized the leap from the second generation to the third generation of independent nuclear power technology. As of August 2020, “Guohe No.1” has accumulated 6513 intellectual property achievements, 1052 national authorized patents, and 392 new products, new materials, new processes, new devices and new software. Moreover, “Guohe No.1” has passed the evaluation, with independent intellectual property rights and export rights, which provides a strong guarantee for the large-scale, batch development and “going out” of China’s three generations of advanced nuclear power. Li Xia, CCTV reporter: the continuous improvement of nuclear power technology research and development capacity depends on the production and manufacturing capacity of major equipment. The nuclear power unit No.1 is called the nuclear power unit, which is the core of the nuclear power unit. The length of the giant is 24 meters, the maximum diameter is 6.5 meters, and the weight is more than 800 tons. It is also the largest steam generator built in China so far. In order to build this giant, researchers have made a lot of research and innovation. Yu Sheng, head of the nuclear power equipment manufacturing department of Shanghai Electric Co., Ltd.: for this steam generator, we have set up more than 30 key processes for innovation and improvement. The most difficult thing is that the accuracy of deep hole machining is very high. We have to drill 25 on the circular plate, The deviation of the diameter of more than 1000 holes and at most one hair filament has been debugged and processed for half a year. < p > < p > in more than ten years, “Guohe No.1” R & D team has overcome a series of problems that restrict the development of nuclear power in China, such as forging of main pipeline, manufacturing of main pump, research and development of digital I & C system, etc., and accumulated a large number of test data, filling the blank of basic data of domestic standards, and formed technical standards for design, construction, materials, welding and nondestructive testing of three generations of nuclear power It has realized the leap from technology to industry of nuclear power in China. < p > < p > Wang Mingtan, general manager of Shanghai Nuclear Engineering Research and Design Institute: “Guohe No.1” not only solves a problem of our intellectual property rights and design capacity, but also solves the problems of our equipment manufacturing, our construction, our debugging, and our management, which has played a leading role in the whole industrial industry of nuclear power projects effect. As a high-tech industry with huge investment and high safety requirements, nuclear power can not realize its autonomy without strong national strength support. After more than 30 years of uninterrupted experience in nuclear power construction and operation, China’s nuclear power construction capacity has been in the forefront of the world. At present, China has completed the construction of five international third generation nuclear power units, ranking first in the world. Among them, Sanmen Nuclear Power Unit 1 is the world’s first reactor of the United States, and Taishan nuclear power unit 1 is the world’s first EPR reactor in France. With excellent nuclear power construction capacity and strict technical safety review, these “world’s first reactors” can provide valuable experience and information for the construction of other three generations of nuclear power units in the world. Hao Hongsheng, director of the major special project office of state power investment in nuclear power: in terms of the construction capacity of nuclear power, we are the world’s leading level, so our nuclear power technology level should keep pace with the world. According to statistics, by the end of 2019, China has 13 nuclear power units under construction, with a total installed capacity of 13.871 million kilowatts, ranking first in the world. Mature and reliable nuclear power construction capacity has accelerated the pace of China’s nuclear power development. According to the calculation, the nuclear power generation will play a more important role in China’s medium and long-term nuclear power generation capacity of 70 million kilowatts by 2025. Chief nuclear engineer of State Power Investment Corporation Zheng Mingguang, chief designer of Guohe No.1: the overall demand of the power grid is still increasing. I think there is still a relatively large space for development of “Guohe No.1”. On the premise of ensuring the same security, its economy can be further enhanced, the construction period can be further shortened, and the cost can be further reduced. SpaceX beat blue origin and Northrop Grumman to win a $316 million air force contract

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