Base isolation and three-dimensional shock-absorbing structure of double-layer containment nuclear power plant

Abstract

The invention discloses a basic shock-isolation and three-dimensional shock-absorbing structure for a double-layer containment nuclear power plant, including an inner containment, an outer containment, a core support structure, a core structure, a horizontal shock-isolation support, and a displacement steering device , vertical shock-isolation support, vertical damper, the outer containment is fixedly connected to the ground, the inner containment is connected to the foundation through a horizontal shock-isolation support, the load-bearing member of the core structure and the bottom plate of the inner containment The seismic support is connected, the load-bearing member of the core structure is connected with the side wall of the inner containment vessel through a vertical damper, and the inner containment vessel and the outer containment vessel are connected through a displacement steering device. According to the basic seismic isolation and three-dimensional shock-absorbing structure for double-layer containment nuclear power plants of the present invention, a three-dimensional The shock absorption effect can meet the special anti-seismic safety requirements of nuclear power plants, and significantly improve the anti-seismic safety of nuclear power plant structures.

Description

technical field [0001] The invention belongs to the technical field of shock absorption for double-layer containment nuclear power plants, and in particular relates to a basic shock-isolation and three-dimensional shock-absorbing structure for double-layer containment nuclear power plants. The invention belongs to a passive control damping system, conforms to dynamic and mechanical principles, and improves the anti-seismic safety of related structures and equipment. Background technique [0002] In recent years, my country's nuclear power plant construction level has been continuously improved, and has gradually developed to the forefront of the world. Due to the importance of nuclear power plant safety and the high cost of accidents, we are required to comprehensively improve the safety of nuclear power plant infrastructure, and each factor is crucial, especially the seismic safety. [0003] At present, a number of advanced nuclear power plant projects in my country have a...

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Problems solved by technology

[0003] At present, a number of advanced nuclear power plant projects in my country have adopted the design concept of double-layer containment. The double-layer containment is adopted. The inner layer ensures that radioactive materials cannot leak out in the event of a reactor accident, and the outer layer resists damage from external impacts. Resist impacts similar to commercial large aircraft, but due to the randomness of earthquakes, advanced technology is still required to reduce the seismic response of nuclear power plants

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