A Space Damping Nuclear Power Plant Structural System

Abstract

The invention provides a nuclear power plant structure system capable of achieving space shock absorption. The system comprises a nuclear island structure and is characterized in that the nuclear island structure is arranged in a safe case; the safe case is arranged in a protection case; multiple shock absorption devices are installed between the safe case and the protection case; the lower part of the safe case in which the nuclear island is arranged is fixed on the base face of the protection case through the shock absorption devices; and shock absorption devices are distributed and supported between the outer side face and the top of the safe case and the inner side face and the top of the protection case. According to the invention, the vertical stiffness of the shock absorption devices is proper; the stiffness of the whole structure is symmetrical; the swinging responses are small; a support seat is effectively protected; inclining of the structure is effectively avoided; the vertical and the horizontal accelerated speed responses of the structure are proper; the shock absorption of the three-dimensional space of the nuclear island structure is achieved; and safety of a nuclear power plant structure is improved.

Description

technical field [0001] The invention relates to a structural system of a nuclear power plant, in particular to a structural system of a nuclear power plant with double shell space shock absorption. Background technique [0002] As a new type of efficient and clean energy, nuclear power has been vigorously promoted in my country, and it is an inevitable choice for my country to develop a low-carbon economy. The consequences of damage to nuclear power structures under the action of earthquakes are extremely serious, not only huge economic losses, but also possible serious nuclear leakage problems. At present, people's greatest concern about the use of nuclear energy still comes from the safety of nuclear facilities. [0003] At present, nuclear power structures are mostly located in the flat areas along the southeast coast, resulting in waste of land, the danger of huge instantaneous impacts such as aircraft collisions, and the potential danger of damage and uncontrollable nu...

AI Technical Summary

Problems solved by technology

The seismic isolation of existing nuclear power structures mostly adopts horizontal seismic isolation technology, which will amplify the response to the vertical acceleration of the structure, causing damage to important internal equipment

The nuclear power three-dimensional seismic isolation technology proposed to control the vertical seismic response of the structure also has deficiencies. The vertical stiffness of the isolation support is too small and the stiffness of the overall structure is asymmetrical, resulting in excessive swing response and damage to the support. Even structural overturning etc.

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