铝水反应是铝作为新能源的一种主要利用方式.为了探究熔融态下铝水反应的动态传递规律,利用自制的反应器,研究了中温条件下铝镁锂合金与水蒸气反应的动态过程,并对反应器内部的温度、压力、氢产率进行了实时监测.实验结果表明:启动温度为500℃时,通入水蒸气后,反应器内部温度迅速升高,最高温度为791℃;金属反应区的截面温度分布差异较大,存在局部的核心高温区;随着反应的进行,核心高温区自进水口处向外向下传递,传递速率约为0.33 mm/s,该速率主要是由水蒸气扩散速率和热传递速率共同决定的.%Aluminum-water reaction was a main way for aluminum to be used as new energy. In order to investigate the dynamic transfer rule in molten state, the reaction process of Al-Mg-Li alloy with water vapor under medium temperature was studied by using the homemade reactor. The temperature, pressure and hydrogen production rate in the reactor were also monitored in real time. The results show that the temperature rose rapidly after the water vapor was pumped into reactor at 500℃ and the highest temperature could reach to 791 ℃. The temperature in the alloy zone had an apparent difference, even in the same cross section. There was a local reaction core area which temperature was very high. As the reaction goes on, the core area of the reaction passed outwards and downwards from the water inlet, the transfer rate calculated was 0.33 mm/s, it is mainly affected by the speeds of both vapor transmission and heat transfer.
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