On February 2, the dragon looked up! Following the major innovation achievements of China's nuclear power and the successful lifting of the outer dome of China's independent third-generation nuclear power Hualong 1 Zhangzhou nuclear power unit 1, Hualong 1 sent another good news: on February 21, the lifting of the inner dome of Hainan Changjiang Nuclear Power Phase II Unit 3 was successful. The lifting of the inner dome is an important milestone in the construction of nuclear power projects, marking the full transition from the peak of civil construction to the installation stage of Hainan Changjiang Nuclear Power Unit 3.
The steel-lined dome is located at the top of the nuclear island reactor building and is an important part of the reactor safety barrier. It forms a closed steel-lined tank structure with the cylinder and bottom plate, which can ensure the tightness of the reactor building. The inner dome of this lifting has a diameter of about 47m, a height of about 24m, and a total weight of more than 300 tons. After a series of high-precision actions such as lifting, luffing, walking, luffing, and hook dropping, the final precision is located on the top structure, and the whole process of lifting is safe and controllable.
The successful ceiling hanging of Hualong No.1 on the day of "Dragon Rising" seems to be the result of continuous innovation, optimization and unremitting efforts of every person in CNNC.
Hualong No. 1 is the result of independent innovation of China's nuclear industry for many years, and is also an important achievement of China Nuclear Power Group to accelerate the realization of high-level technology self-reliance and the implementation of the national "double carbon" strategy. It has full market competitiveness in the international market and is known as the national business card.
China Nuclear Power Group has always played a leading role in independent innovation and engineering construction of the nuclear industry. Hualong No. 1 is the successful practice of China Nuclear Power Group to be the "chain leader" of the nuclear power industry chain. As a major energy project in Hainan Province, after the completion and operation of the second phase of Hainan Changjiang Nuclear Power Project, each unit is estimated to generate nearly 10 billion kilowatt-hours of electricity annually, which can meet the annual production and domestic electricity demand of 1 million people in Hainan Province, equivalent to reducing 3.12 million tons of standard coal annually, 8.16 million tons of carbon dioxide emissions, and more than 70 million trees planted, Make positive contributions to the construction of the National Ecological Civilization Pilot Zone and Hainan Free Trade Port in Hainan Province.
It is understood that the units 1 and 2 of Hainan Changjiang Nuclear Power Base have maintained safe and stable operation for a long time, and the unit WANO index has maintained full marks. The construction of the nuclear power phase II project and the Linglong 1 global first reactor demonstration project has been steadily advanced as planned, forming a good pattern of "two dragons fly together, three reactors build together".
