本文選題：乏燃料水池　切入點(diǎn)：氫氣風(fēng)險(xiǎn)　出處：《原子能科學(xué)技術(shù)》2016年12期 　論文類型：期刊論文

【摘要】：福島核事故暴露了乏燃料水池安全研究的不足,尤其是氫氣風(fēng)險(xiǎn)評(píng)價(jià)方面的不足。根據(jù)IAEA及我國相關(guān)法規(guī)要求,應(yīng)對(duì)核電廠乏燃料水池發(fā)生嚴(yán)重事故后的氫氣風(fēng)險(xiǎn)進(jìn)行評(píng)估,并對(duì)氫氣風(fēng)險(xiǎn)的消除進(jìn)行對(duì)策研究。本文采用MELCOR程序建立分析模型,計(jì)算研究了乏燃料水池嚴(yán)重事故下的事故進(jìn)程和氫氣產(chǎn)生與濃度分布,評(píng)價(jià)了廠內(nèi)氫氣風(fēng)險(xiǎn)并定量研究了氫氣風(fēng)險(xiǎn)緩解措施。分析結(jié)果表明,氫氣風(fēng)險(xiǎn)是存在的。對(duì)補(bǔ)水、噴淋、通風(fēng)和氫氣復(fù)合器等緩解氫氣風(fēng)險(xiǎn)措施的研究表明,注水和噴淋是可完全消除氫氣風(fēng)險(xiǎn)的,但通風(fēng)和氫氣復(fù)合器并不能完全消除氫氣風(fēng)險(xiǎn)。消除乏燃料水池嚴(yán)重事故下氫氣風(fēng)險(xiǎn)的重點(diǎn)應(yīng)為保證補(bǔ)水措施有效,對(duì)此可提高補(bǔ)水措施的可靠性和阻止乏燃料水池的泄漏。
[Abstract]:The Fukushima nuclear accident exposed the shortage of safety research in the spent fuel pool, especially in the risk assessment of hydrogen. According to the requirements of IAEA and relevant regulations of our country, hydrogen risk should be assessed after serious accident in the spent fuel pool of nuclear power plant. In this paper, MELCOR program is used to establish an analytical model to calculate and study the accident process and hydrogen generation and concentration distribution in a spent fuel tank under serious accidents. The hydrogen risk mitigation measures are evaluated and quantitatively studied. The results show that the hydrogen risk exists. The research on the hydrogen risk mitigation measures, such as rehydration, spray, ventilation and hydrogen compactor, shows that, Water injection and spray can completely eliminate the risk of hydrogen, but ventilation and hydrogen compounding can not completely eliminate the risk of hydrogen. The emphasis of eliminating hydrogen risk in the serious accident of spent fuel pool should be to ensure the effective measures of rehydration. This can improve the reliability of water supply measures and prevent the leakage of spent fuel pool.
【作者單位】： 中國核電工程有限公司;環(huán)境保護(hù)部核與輻射安全中心;
【分類號(hào)】：TM623.8

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本文編號(hào)：1576518