液体喷射单相环流反应器在化学和生化工程中应用较多。有关其流动特性,Blanke已作了较为全面的综述。一般这种反应器的操作采取中心或环隙喷射的定态方式,Douglas和Baird等对反应器的研究认为,传统的定态操作并不能保证过程总处于最佳状态,在某些情况下进行非定态的振荡操作,可能更有利于反应和传递,其中确定合适的振荡周期是实现这一目的的关键。文献[5,6]利用内环流反应器中心气升和环隙气升的周期切换,实现了环流反应器的振荡操作,并较有效地提高了反应器溶氧传质系数。将这种操作方式用于面包酵母的培养,可增加细胞收率。环流反应器振荡操作时流体流动的特点不单表现为流动处于非定态,而且当喷射位置从中心切向环隙或相反时,流体流动方向都要反向变化一次。因此 Liquid jet single-phase loop reactor in chemical and biochemical engineering more. Blanke has a more comprehensive overview of its flow characteristics. In general, the operation of this reactor takes the center-or-ring injection mode. The study of reactors by Douglas and Baird, for example, argues that conventional steady-state operation does not guarantee that the process is always optimal and in some cases Unsteady oscillatory operation may be more conducive to the reaction and transmission, which determine the appropriate oscillation cycle is the key to achieve this goal. Literature [5] and [6] utilized the cyclic switch of gas lift and ring gas lift in the center of the inner loop reactor to realize the oscillating operation of the loop reactor and effectively improve the mass transfer coefficient of dissolved oxygen in the reactor. Using this method of operation for baker’s yeast increases cell yield. The characteristics of the fluid flow during the operation of the circulation reactor oscillate not only when the flow is in a non-stationary state, but also when the jet position is tangentially from the center to the annulus or vice versa. therefore