Simplified protection method and system for resisting impact of commercial large aircraft for nuclear power plant

Abstract

The invention relates to a simplified protection method and system for resisting impact of a commercial large aircraft for a nuclear power plant. According to the simplified protection method, an anti-impact structure is arranged on a reactor building for protection, the anti-impact design is conducted on a body structure on the side, adjacent to the impact direction, of a spent fuel pool and a main control chamber, and meanwhile, two columns of redundant specially-arranged safety factories and functional supporting factory structures thereof are subjected to sufficient physical isolation arrangement relative to the anti-impact structure. According to the simplified protection method and system, the four effects (namely overall stability, the local penetration effect, the vibration effectand the fire effect) generated by impact of the large aircraft can be comprehensively protected, the economical efficiency and factory site adaptability are balanced, and the simplified protection method and system have the great application prospects.

Description

Technical field [0001] The invention belongs to the external event protection design technology of nuclear power plants, and is specifically a simplified protection method and system for nuclear power plants to resist the impact of commercial large aircraft. Background technique [0002] After the 9 / 11 incident in the United States, international attention was paid to the possibility of large commercial aircraft attacking key national facilities, including nuclear power plants. Countries also have relevant requirements for applicants for new nuclear power plants, including the United States Federal Regulations 10CFR50, and the requirements of the Western European Nuclear Regulatory Commission WENRA. The domestic nuclear safety regulations HAF102 also clearly requires that the design of nuclear power plants consider the possibility of malicious attacks by commercial aircraft, and through evaluation to prove that the design can maintain the cooling of the reactor core or the integr...

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Problems solved by technology

[0006] Moreover, in the current design of third-generation nuclear power plants, the more common and safe protection scheme is to add an anti-large aircraft impact concrete shell outside important structures. The advantage of this double-shell protection is that it can effectively prevent large aircrafts from impacting equipment, The system and components are affected by vibration, and the projectiles of broken armor on the wall after impact will cause damage to the system and components. However, the thicker protective shell superimposed on the factory building itself may have the problem of factory building settlement if the foundation bearing capacity is not enough. There are certain challenges in terms of reliability, and the economic cost of adding a large shell is also relatively prominent

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