Base shock insulation and three-dimensional shock absorption structure of double containment vessel nuclear power plant.

Abstract

The invention discloses a base shock insulation and three-dimensional shock absorption structure of a double containment vessel nuclear power plant, the base shock insulation and three-dimensional shock absorption structure comprises an inner containment vessel, an outer containment vessel, a core support structure, a core structure, a horizontal shock insulation support, a displacement steering device, a vertical shock insulation support and a vertical damper, wherein the outer containment vessel is fixedly connected with the ground. The inner containment vessel is connected with the foundation through the horizontal shock insulation support. The bearing member of the core structure is connected with the bottom plate of the inner containment vessel through the vertical shock insulation support. The bearing member of the core structure is connected with the side wall of the inner containment vessel through the vertical damper. The inner containment vessel is connected with the outer containment vessel through the displacement steering device. A three-dimensional shock absorption effect is generated by the comprehensive action of the horizontal shock insulation support, the displacement steering device, the vertical shock insulation support and the vertical damper, so the the special seismic safety requirements of the nuclear power plant can be met, and the seismic safety of thenuclear power plant structure is obviously improved.

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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