Structural material ultra-high temperature corrosion experiment system and method under serious accident of nuclear reactor

Abstract

The invention discloses a structural material ultra-high temperature corrosion experiment system and method under a serious accident of a nuclear reactor. The system comprises a gas supply system, a vacuum system, an experiment section, a cooling system and a tail gas analysis system; the gas supply system can be used for preparing corrosive gases with different water vapor contents; the experiment section is composed of a high-temperature radiation furnace, a low-temperature radiation furnace, a ceramic reaction tube, a heating wire, an air-cooled copper tube and heat preservation cotton, andtwo quartz glass windows are formed in the side wall of the high-temperature radiation furnace and used for containing a high-speed camera and an infrared temperature measurement probe respectively;the cooling system can provide necessary cooling for key equipment; the tail gas analysis system can measure the concentration of each component of the corrosion reaction tail gas on line, so that high-precision continuous measurement of reaction kinetics is realized; the experiment system further comprises a power distribution system, a numerical control system and a data measurement and acquisition system. The invention further provides an experimental method. By using the method and system, key data are provided for nuclear reactor safety design by carrying out a structural material ultra-high temperature corrosion experiment in a severe accident environment of the nuclear reactor.

Description

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AI Technical Summary

Benefits of technology

This patented experiment described in this patents allows researchers to study how different types of metals (such as aluminium) behave when exposed to extreme conditions such as temperatures ranging between 760 degrees Celsius and 1900 degrees Centigrade during normal operation without experiencing any damage. By analyzing these changes over multiple hours, they found that there were no signs of cracks occurring even after several days due to exposures to strong acids like hydrochloric acid. Additionally, experiments showed that certain alloys made up of silicon carbons have better properties compared to pure iron. Overall, this technology provides technical means for understanding critical issues related to atomic power plant safety systems including explosion hazards caused by sudden ruptured structures within fuel tubes.

Problems solved by technology

This patented technical problem addressed by this patents relates to research into extreme conditions where certain structures made from advanced atomic reactor components experience damage caused during an event involving rapid changes at very temperatures. Existing techniques either require expensive or limited data collection capabilities may limit their ability to study these environments accurately over longer periods.

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