I. Introduction of Hualong No.1:
"Hualong No.1" is based on more than 30 years of nuclear power research, design, manufacture, construction and operation experience of China National Nuclear Corporation and China General Nuclear Power Group, two major nuclear power enterprises in China.
According to the experience feedback of Fukushima nuclear accident and the latest safety requirements of China and the world, the advanced million kilowatt PWR nuclear power technology developed is the innovation achievement of the third generation PWR nuclear power with completely independent intellectual property rights, which is the main reactor type for the development of nuclear power units in China, the "national business card" for China's nuclear power to go global, and a major landmark achievement for the innovation and development of China's nuclear power.
Second, the research and development background
Since 1980s, China has introduced foreign technology, and through digestion, absorption and re-innovation, it has fully realized independent design, independent manufacturing, independent construction and independent operation, and entered a new stage of "independent creation", which has the conditions to form the third generation nuclear power technology with independent intellectual property rights.
After the Fukushima nuclear accident, the international community, China government departments and the public put forward higher requirements and expectations for nuclear safety.
The "going out" of nuclear power has become a national strategy in China. To realize the transformation of China from a nuclear power country to a nuclear power country, an important symbol is to have nuclear power technology with independent intellectual property rights and realize "going out". China government attaches great importance to the "going global" of nuclear power.
Technical characteristics
1, the unity of advanced and mature
Hualong No.1 is characterized by "177 fuel assembly core", "multiple redundant safety system" and "active and passive safety measures". It adopts the highest safety requirements in the world and the latest technical standards to meet the safety requirements of the International Atomic Energy Agency and the third generation technical standards of the United States and Europe.
Make full use of the precious experience, technology and talent advantages accumulated in the design, construction and operation of nuclear power plants in China in the past 30 years; Fully draw lessons from advanced nuclear power technologies including AP 1000 and EPR; The feedback from domestic and foreign experiences after the Fukushima nuclear accident was fully considered, and the requirements for nuclear safety supervision were fully implemented.
Fully relying on the mature system and capability of China's nuclear power equipment manufacturing industry and adopting proven and mature technologies, integrated innovation has been realized.
2. Balance between safety and economy
Starting from the top-level design, Hualong No.1 has taken practical and effective measures to improve safety, meeting the 2020 long-term goal of the China government to "practically eliminate the possibility of releasing a large amount of radioactive materials in design" for new nuclear power units built during the 13th Five-Year Plan period and beyond, and is fully capable of coping with extreme working conditions similar to the Fukushima nuclear accident.
The localization rate of the first set of Hualong No.1 can reach 85%, and its economy is competitive with the Russian nuclear power technology products with the most international orders at present, and it has obvious economic competitiveness compared with the current three-generation mainstream models.
3. Combination of initiative and passivity
On the basis of active safety, Hualong No.1 has taken effective passive safety measures. As a supplement to the active safety system that has been verified by engineering, the passive safety system that can effectively cope with the loss of power source provides diversified means to meet the safety requirements. It is one of the three most accepted nuclear power models in the current nuclear power market.