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采取隔板将传统的气-液-固三相反应器均分成互不相通的多腔室，利用计算机控制电磁阀交替开闭，对各腔室进行周期通气，从而实现反应器的振荡操作，本文研究了振荡周期、操作气速和腔室数对反应器溶氧传质系数的影响．结果表明，振荡周期对溶氧传质系数有很大影响，随腔室数、操作气速的增加，反应器最佳振荡周期明显缩短，不论是双腔室、三腔室还是四腔室，随操作气速的增加，最佳振荡周期均以相同的斜率直线下降，与稳态操作相比，多腔室动态操作可以比较有效地提高反应器的溶氧传质系数．但腔室数对动态操作溶氧传质系数的影响不明显
The separator is adopted to divide the traditional gas-liquid-solid three-phase reactors into multiple chambers which are not connected with each other, alternately opening and closing by using a computer-controlled solenoid valve and periodically ventilating the chambers so as to realize the oscillating operation of the reactor, In this paper, the effects of oscillation period, operating gas velocity and chamber number on the mass transfer coefficient of dissolved oxygen in a reactor were studied. The results show that the oscillation period has a great effect on the mass transfer coefficient of dissolved oxygen. With the increase of the number of chambers and operating gas velocity, the optimum oscillation period of the reactor is obviously shortened. Whether it is double chamber, triple chamber or four chamber, With the increase of operating gas velocity, the optimal oscillation period decreases linearly with the same slope. Compared with the steady state operation, the multi-chamber dynamic operation can effectively improve the dissolved oxygen mass transfer coefficient of the reactor. However, the number of chambers has no obvious effect on the dynamic mass transfer coefficient of dissolved oxygen