Method for analyzing water logging in building

Abstract

The invention provides a method for analyzing water logging in a building. The method mainly comprises the following steps: analyzing water logging in a building according to a deterministic theory; specification and analysis are carried out on a protection equipment list, water logging partition division, water logging source selection, a water logging source spread path analysis method and the like, finally, hazard evaluation of water logging in the nuclear island is formed, necessary protection measures are taken in combination with the hazard evaluation, and therefore it is guaranteed thatinternal facilities of the building cannot be damaged due to internal water logging. The water level analysis based on the deterministic theory is adopted, the specific flow data and the position information of the water source are obtained through analysis and calculation strictly according to the time that people do not intervene for 30 minutes, and therefore the water level information more conforming to the reality is obtained, and great significance is achieved for protection of equipment and safety of a power station.

Description

Technical field [0001] The invention belongs to the design technology of a nuclear island plant of a nuclear power plant, and is specifically a method for analyzing the internal water flooding of a building for the nuclear island plant. Background technique [0002] “HAD102 / 04 Section 4 Protection of Missiles in Nuclear Power Plants and Their Secondary Effects” stipulates that when powerful missiles may hit pipes, tanks and pools that are usually filled with liquid, the flooding must be evaluated. The potential for damage. The internal flooding caused by external flooding in the Fukushima incident also attracted the attention of the National Nuclear Safety Administration and industry experts. [0003] Taking the M310 main reactor type currently in service in my country as an example, although the internal flooding protection design has been analyzed from a deterministic point of view, quantitative analysis and conclusions have not been made on several key technologies in the analy...

AI Technical Summary

Problems solved by technology

In this method, the division of flooded areas is based on the civil structure, room layout, and system layout of the nuclear island powerhouse. The calculation of the flooded water level is only based on the total flooded flow minus the drainage flow, and then divided by the net floor area. The simulation and analysis of the internal flooding process of the nuclear island powerhouse cannot be realized, and the calculation of the flooded water level is not accurate enough to reflect the real situation of the internal flooding of the nuclear island after the accident

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