Diversity protection system and method for ocean nuclear power platform

Abstract

The invention discloses a diversity protection system and method for an ocean nuclear power platform. The diversity protection system comprises a diversity driving cabinet and a diversity driving disc, wherein the diversity driving cabinet comprises a first signal receiving module and a judgment module which are connected with each other, and the diversity driving disc comprises a second signal receiving module electrically connected with the judgment module. The invention relates to the technical field of nuclear safety protection of nuclear reactors. With the diversity protection system andmethod in the invention, when anticipated transient and design basis accident occur in a reactor and a reactor protection system is out of operation, the reactor and a steam turbine of the ocean nuclear power platform are shut down emergently, two paths of signals independently collected from the reactor and a reactor protection system are respectively adopted for comprehensive judgment, so unnecessary shutdown of the reactor and the steam turbine caused by signal errors are prevented, and the safety, economical efficiency and reliability of the diversity protection system are realized.

Description

technical field [0001] The invention relates to the technical field of nuclear safety protection of nuclear reactors, in particular to a diversity protection system and method for marine nuclear power platforms. Background technique [0002] In today's environment where the world's energy crisis is highlighted and the environment is deteriorating, nuclear energy, as an important clean energy, has been increasingly valued. The marine nuclear power platform is a small mobile nuclear power plant at sea. Compared with land-based nuclear power plants, it has unique advantages in providing safe and effective energy and fresh water supply to meet the economic development of sea areas. However, the issue of nuclear safety cannot be ignored. How to minimize potential safety risks while ensuring full use of the advantages of nuclear energy has become a key issue facing the development of nuclear power. [0003] Due to the importance of the functions undertaken by safety-level instrum...

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Problems solved by technology

[0005] However, the diversity protection system and method of nuclear power plants cannot be applied to marine nuclear power platforms. On the one hand, the system configurations of marine nuclear power platforms and nuclear power plants are different. For example, marine nuclear power platforms have double loops, while nuclear power plants have triple loops; on the other hand , the diversity protection system of nuclear power plants cannot meet the requirements of tilting, swaying, corrosion and other working conditions in the marine environment. Therefore, in order to meet the regulations and actual needs, it is necessary to design a diversity protection system and method for marine nuclear power platforms

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