On March 6, we learned from GHBT Titanium Zirconium Industry Co., Ltd. that with the completion of the first overhaul of Haidian Nuclear Power Unit 1 of SPIC, the third-generation nuclear-grade zirconium materials produced by National Nuclear Zirconium officially entered the reactor service. With the successful realization of the domestic target of nuclear-grade zirconium materials in China, it has rewritten China's long-term dependence on imports of nuclear-grade zirconium materials, breaking the bottleneck that has long restricted China's nuclear power development.
It is understood that nuclear-grade zirconium is used as a structural material for reactor nuclear fuel elements and is an indispensable key material for nuclear power plants. For a long time, China's nuclear-grade zirconium materials have all relied on imports. Breaking through key nuclear power technologies and filling domestic gaps is a major task to advance the third generation of nuclear power autonomy. In order to complete the national mission of AP1000 nuclear-grade zirconium material domestication and independence, the National Nuclear Zirconium Industry located in Baoji High-tech Zone has formulated three routes A, B, and C to promote nuclear The process of localization of grade materials has gradually completed the qualification appraisal from "imported pipe blanks and imported raw materials to the realization of domestic raw materials". After more than 100 days and nights, in January 2015, State Nuclear Zirconium successfully completed all the work on the nuclear-grade material technology transfer project, and obtained a technology transfer certificate issued by the Westinghouse Company.
"Haiyang Refueling" is the first domestic production contract of AP1000 nuclear-grade zirconium alloy pipe and rods after the National Nuclear Zirconium passed the Westinghouse certification. Whether the contract production tasks with high quality and quantity can be completed on schedule and the refueling can be smoothly completed is a sign This is a key step in realizing the national mission, and it is also an important link to consolidate the national nuclear zirconium industry's leading position in the industry and to lay a solid foundation for the localization of other reactor-type nuclear-grade zirconium materials. After receiving Haiyang's first furnace refueling production task, State Nuclear Zirconium organized and rectified all aspects of the company's process, technology, production, and inspection, starting from various aspects such as human, machine, material, method, and environment. The smooth start of production is expected to lay the material foundation. On April 15, 2016, as the first sponge zirconium was dropped from the picker, Haiyang's first furnace refueling zirconium production officially began.
State Nuclear Zirconium Party Secretary and Chairman Wang Chengli introduced that all employees of State Nuclear Zirconium took more than 10 months. On April 30, 2017, the AP1000 nuclear grade zirconium alloy pipe and rod for the first furnace refueling of Haiyang Nuclear Power Station was completed. Contract production and inspection work. At this point, Haiyang's first furnace refueling-40 batches of cladding tubes, 6 batches of guide tubes, 1 batch of instrument tubes, 2 batches of buffer tubes, 4 batches of support tubes, 16 batches of 4 batches totaling 57 tons of tubes and bars The production work was successfully concluded. 2 In January 018, National Nuclear Zirconium successfully completed the product acceptance and delivery of the first furnace refueling of the Haiyang Nuclear Power Project. During this overhaul of the Haiyang Nuclear Power Plant, the domestically produced AP1000 nuclear grade zirconium material was officially put in the pile, and the nuclear safety A major responsibility for protecting the barrier marks a solid step in the domesticization of nuclear-grade zirconium.
Wang Chengli said that at present, nuclear grade zirconium materials for C103 and C203 refueling of Haiyang Nuclear Power are in full swing. In the future, enterprises will actively explore and innovate, and continue to promote the domesticization and independent process of nuclear grade zirconium materials for more reactors. More alloy-type nuclear power plants provide domestically produced nuclear-grade zirconium materials with excellent quality, and move towards the goal of becoming a world-class zirconium service provider, laying a solid foundation for the early realization of the dream of a strong nuclear power country.