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为探求全回流模式下低温精馏氢同位素分离过程中有关操作参数的内在联系,研究了再沸器加热功率对脱氘率、床层压降、液氢液位等的影响。当再沸器加热功率从5 W增加到12.4 W时,脱氘率从88%增加到99.6%,脱氘率与再沸器加热功率基本呈线性关系。随再沸器加热功率的增加,液氢液位下降,床层压降增加,但在该功率范围内未出现液泛现象。随加热功率增加,精馏柱操作压力从100 kPa升高到190 kPa,冷凝器和冷头为提供更多冷量而温度降低。
In order to find out the intrinsic relationship between the operation parameters of the cryogenic rectification hydrogen isotope separation in the full reflux mode, the influence of the reboiler heating power on the deuterium removal rate, bed pressure drop and liquid hydrogen level was studied. When reboiler heating power increased from 5 W to 12.4 W, the deuterium removal rate increased from 88% to 99.6%, and the deuterium removal rate was basically linear with the reboiler heating power. With the reboiler heating power increases, the liquid hydrogen level drops, the bed pressure drop increases, but in the power range does not appear flooding phenomenon. As the heating power increases, the rectification column operating pressure increases from 100 kPa to 190 kPa, and the condenser and cold head reduce the temperature to provide more cooling capacity.