Swing prevention device for passive gravity water tank for AP1000 nuclear power plant

Abstract

The invention belongs to the technical field of nuclear power and particularly relates to a swing prevention device for a passive gravity water tank for an AP1000 nuclear power plant. The swing prevention device comprises a swing prevention baffle assembly arranged in the passive gravity water tank. The bottom end of the swing prevention baffle assembly is detachably connected with the bottom wall of the passive gravity water tank through first connecting pieces. The top end of the swing prevention baffle assembly is detachably connected with the side wall of the passive gravity water tank through second connecting pieces. The swing prevention device has the beneficial effects that the swing prevention device for the passive gravity water tank for the AP1000 nuclear power plant is a combined device formed by swing prevention baffles, oval drag reduction holes, filtering screens, the U-shaped clamping openings, galvanized bolts, H-shaped connecting pieces, arc-shaped beams and inverted-U-shaped connecting pieces. The swing prevention device has the beneficial effects of being simple in principle, capable of being prefabricated in a factory, low in cost, capable of being assembled in a site, convenient to replace, capable of reducing vibration and preventing the swing and the like.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and in particular relates to an anti-shaking device for a passive gravity water tank of an AP1000 nuclear power plant. Background technique [0002] As a stable and clean energy, nuclear energy has developed rapidly in recent decades. AP1000 passive nuclear power plant is a third-generation semi-nuclear power plant designed by Westinghouse Corporation of the United States, and its notable feature is passive. When a loss of water accident occurs in a nuclear power plant, the internal temperature of the nuclear power plant is reduced by using the passive gravity water tank spray water and the natural circulation of the vent to realize the safe shutdown of the nuclear power plant. However, the safe operation of nuclear power plants is still a key concern in the development of nuclear power. The Fukushima nuclear accident in 2011 showed that strengthening the defense in depth of nuclear power ...

AI Technical Summary

Problems solved by technology

The passive gravity water tank of the AP1000 nuclear power plant has a large volume and mass. Due to the uncertainty and randomness of earthquakes, a strong earthquake in a nuclear power plant will cause severe shaking and oscillation of the passive water tank, which has an important impact on the dynamic response of the nuclear power plant building. impact, and even adversely affect the safety of nuclear power plants

Images