[China Instrument Network Instrument R&D] According to the Shanghai Nuclear Engineering Research and Design Institute (hereinafter referred to as “Shanghai Nuclear Project”) news, the CAP1400 autonomous fuel sizing component sample independently designed and presided by it was successfully developed in Baotou, Inner Mongolia on September 6th. Offline. As a project of Shanghai Nuclear Engineering with complete independent intellectual property rights, the CAP1400 self-contained fuel assembly is based on a series of major PWR projects and is based on the world's advanced reactor core and fuel operation and safety technical requirements. It is the first domestic use of a full zirconium alloy skeleton, satisfying 14-foot core high-performance fuel assembly.


It is reported that the CAP1400 PWR nuclear power unit is based on digesting, absorbing, and comprehensively grasping the third-generation advanced nuclear power AP1000 passive technology introduced by China, and through the re-innovation to develop a passive power with China’s independent intellectual property rights and greater power. Large-scale advanced pressurized water reactor nuclear power unit. The completion of this special demonstration nuclear power plant is the standard for the independent innovation of the third-generation nuclear power technology in China. At the same time, the PSA1400 demonstration project of the major PWR project has been included in the "Central and Long-Term Nuclear Power Development Plan" adjusted by the National Development and Reform Commission. It can be seen that the research and development of the CAP1400 autonomous fuel assembly has an undeniable influence on the development of nuclear power in China.

Following the smooth assembly of the CAP1400 self-contained fuel prototype assembly on the December 30, 2015, the Shanghai Nuclear Engineering Group continued to strive for excellence in the development phase of the final assembly. A total of 28 performance verification tests were carried out, and several components were further optimized. At the same time, system integrity was balanced against component integrity. In the course of this research and development, Shanghai Nuclear Engineering has formed a total of 21 invention patents, 8 technical secrets, and 3 scientific and technological achievements appraisal, in addition to many domestic and foreign papers.

The CAP1400 self-contained fuel assembly is based on the world's advanced reactor core and fuel operation and safety technical requirements, in the "high fuel consumption level, high thermal margin, high seismic margin, fission products source control, anti-flow vibration abrasion, anti-foreign object "Friction" and other six key performance indicators have reached the international advanced level. In this CAP1400 independent fuel assembly R&D process, Shanghai Nuclear Engineering teamed up with the R&D team to overcome various difficulties and lay a solid foundation for the next phase of pilot component research.

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