| 摘要 |
PROBLEM TO BE SOLVED: To prevent air from entering a high-temperature nuclear reactor at the time of accidental breakage in a primary pipe. SOLUTION: A high-temperature nuclear reactor system includes a high-temperature nuclear reactor 8 and an opposed diffusion mechanism 9. The opposed diffusion mechanism 9 includes: a gas storage container 20, placed outside of the high-temperature nuclear reactor, which contains a gas lighter than air; a flow channel 21 through which the gas lighter than air is supplied from the gas storage container to the core top part of the high-temperature nuclear reactor; and a flow rate adjuster 22 for limiting the flow rate of the gas lighter than air. At the time of pipe breakage, the gas lighter than air is continuously supplied to the core top part so as to prevent air from entering the pipe. COPYRIGHT: (C)2011,JPO&INPIT
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