| 冷源真空筒氢爆过程实验研究 |
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| 引用本文： | 胡春明,兰晓华,郑洲,刘显坤. 冷源真空筒氢爆过程实验研究[J]. 核技术, 2009, 32(4) |
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| 作者姓名： | 胡春明 兰晓华 郑洲 刘显坤 |
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| 作者单位： | 中国工程物理研究院绵阳621900;中国工程物理研究院绵阳621900;中国工程物理研究院绵阳621900;中国工程物理研究院绵阳621900 |
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| 摘 要： | 冷源真空筒内发生氢气-空气混合气体爆炸对真空筒结构完整性构成最大威胁,研究全尺寸模拟件的氢爆过程实验,得到各种工况下真空筒内氢爆炸产生的压力变化.实验结果表明理想配比的氢-空气在真空简内只会发生气体爆燃现象,最大超压为350 kPa.据此计算得到真空筒的von Mises等效应力及各主应力都远低于材料弹性极限,表明即使冷源装置发生最大破坏性的氢爆事故,真空筒仍能保持其结构完整性,不会危及到反应堆结构物安全性.
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| 关 键 词： | 冷中子源 真空筒 氢气 爆燃 冲击波压力 |
Experimental study on H_2-air explosion in vacuum containment of CNS |
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| HU Chunming,LAN Xiaohua,ZHENG Zhou,LIU Xiankun. Experimental study on H_2-air explosion in vacuum containment of CNS[J]. Nuclear Techniques, 2009, 32(4) |
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| Authors: | HU Chunming LAN Xiaohua ZHENG Zhou LIU Xiankun |
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| Affiliation: | China Academy of Engineering Physics;Mianyang 621900;China |
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| Abstract: | The most dangerous accident of a cold neutron source is explosion of H2-air mixture inside the vacuum containment(VC).An experimental study with hydrogen-air stoichiometric concentration in VC has been done in a full-scaled set-up.The shock pressure curves of the explosion at different initial places were obtained.The results indicate that the explosion in VC is just a deflagrating,and the maximal shock pressure is about 350 kPa.The von Mises equivalent stress and the main stresses calculated are well below... |
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