n.泄水管(下导管)
Based on this,the effect of downcomer diameter and h... 所获得的结果对气升式反应器的设计优化具有指导意义。
The gas holdups both in the riser and the downcomer slightly decreased with an increase in superficial liquid velocity. 各级内上升管和下降管的气含率均随表观液速的增大而减小，但影响程度较小。
Structure and operating performance of new fixed valve tray with suspending downcomer (DJ - 5 tray) was introduced. 新型固定阀悬挂降液管塔板是一种新型大通量高效DJ塔板。
DOWNCOMER BACKUP FLOOD： Downcomer is totally full of froth; liquid backs up on tray. 降液管液泛：降液管被完全充满，液相回流到塔盘。
Based on the advancement of the downcomer,some opinions of the downcomer research were presented. 针对当前板式塔降液管研究的进展情况,提出了一些关于降液管研究方向的看法。
