Experimental system used for simulating severe accident conditions of containment of nuclear power plant, and implementation method thereof

Abstract

The invention discloses an experimental system used for simulating severe accident conditions of the containment of a nuclear power plant and an implementation method thereof to overcome the problem that comprehensive simulation of severe accident conditions of the containment of a nuclear power plant cannot be realized in the prior art. The experimental system comprises an experimental container, a first pressure sensor arranged in the experimental container, a data acquisition system, an exhaust pipeline, an air supply system, a hydrogen supply system, a spray system, an aerosol supply system, a cable combustion product supply system, a water vapor on-line supply system and at least four sampling pipelines, wherein the data acquisition system is connected with the experimental container through multipoint thermocouples; the exhaust pipeline, the air supply system, the hydrogen supply system, the spray system, the aerosol supply system, the cable combustion product supply system, the water vapor on-line supply system and the at least four sampling pipelines are connected with the experimental container; and the aerosol supply system is connected with the spray system. The experimental system provided by the invention has a reasonable structure, can authentically and comprehensively simulate severe accident conditions in the nuclear power plant and carries out hydrogen elimination performance testing on a passive hydrogen recombiner on the basis of simulation results; moreover, testing results approximately represent actual working conditions, so good reference standards are provided for researching and designing of the recombiner.

Description

Technical field [0001] The invention relates to an experimental system for nuclear power hydrogen safety equipment, specifically an experimental system for simulating serious accident conditions of nuclear power containment and its implementation method. Background technique [0002] After the Fukushima nuclear accident in Japan, more and more attention has been paid to hydrogen risk control within the nuclear power containment, and the requirements for hydrogen safety equipment are getting higher and higher, especially whether the hydrogen safety equipment can still play a role in hydrogen control under severe accident conditions or The eliminated function has become an important assessment basis for equipment. In particular, passive hydrogen recombiners (PARs), which are the main means of hydrogen elimination, need to evaluate their operating performance under severe accident conditions. [0003] However, under severe accident conditions, complex environmental conditions ...

AI Technical Summary

Problems solved by technology

Although there are researches in this area in China, due to technical limitations, it is very difficult to realize the above environmental conditions at the same time. Therefore, the current simulation tests for severe accident conditions of recombiner design nuclear power plants can only be used for laboratory research. The level of the designed recombiner is also relatively low, which cannot reflect the real hydrogen elimination performance of the passive hydrogen recombiner under severe accident conditions, so it is difficult to meet the needs of the current actual working conditions

Images