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The first global thermal performance test of Hualong No. 1 is basically completed.
[2020-03-03]

At 9:12 on March 2nd, the thermal performance test of No. 5 nuclear power generating unit No. three of Hualong nuclear power group, China's first generation of the first generation of the first generation of nuclear power, with complete independent intellectual property rights, was basically completed, which laid a solid foundation for subsequent unit loading and grid connected generation, and so on.

The "hot test" is a comprehensive test stage that runs through the main pump operation and the electric heater of the pressurizer to increase the reactor coolant system to the thermal shutdown condition, and performs a series of commissioning tests and regular tests on a specific test platform. This stage simulates various thermal working conditions of nuclear power plants as far as possible, and verifies the reliability of nuclear island, conventional island equipment and system in thermal operation, and whether the relevant parameters meet the design requirements.

As the "national card" of China's nuclear power going to the world, Hualong No. 1 is one of the three generation nuclear power plants with the highest degree of acceptance in the nuclear power market. It is a major landmark achievement in the development of nuclear power in China. The successful construction of its demonstration projects at home and abroad is of great significance for China to achieve the leap from nuclear power to nuclear power. At present, there are 5 nuclear power units in Hualong nuclear power group at home and abroad under construction, and the safety and quality of construction projects are in good control.

In 2020, in the face of the sudden outbreaks, the Joint Commission on the work of Party building of Hualong nuclear power demonstration project No.1, Xi Jinping, resolutely carried out the important directive spirit of general secretary of the CPC on "strengthening confidence, working together in the same boat, scientific prevention and control, and precise implementation of policies". In the war, we should let the party flag fly high in the frontline of the epidemic prevention and control struggle and the safe and orderly return to work. On the basis of strict implementation of the epidemic prevention and control requirements, the officials of the nuclear safety supervision department have carried out nuclear safety supervision throughout the whole process. The Spring Festival has always adhered to the forefront of the scene, and the jury has been conducting a review through video network connection. At present, the demonstration project of Hualong No.1 has been constructed in an orderly way, and all locale units have maintained "zero infection" records, laying a solid foundation for completing the annual target of the project.

During the test, the passivation test of the main system, the functional verification test of the passive system, and the non nuclear steam test of the steam turbine unit were completed. The functions of the main system, auxiliary system and special system of the power plant under the hot working condition were fully verified, and four tests of the first pile test were carried out, and the performance meets the design requirements.

In order to ensure the smooth performance of the thermal performance test, Fuqing nuclear power plant has established the thermal performance test organization of unit 5, and has carried out the thermal test preparation work in all aspects from the system status, personnel, technology, documents and materials, etc., and has completed the compilation, disclosure and publicity of the relevant technical documents, procurement and sorting of the special materials, and the deduction of high risk debugging experiments.

Source: China nuclear group