CAJ | 학술논문

在带列管内构件的鼓泡塔内测量了4种不同布气方式下的气含率和液速径向分布，并与无列管内构件的空塔中的分布进行了比较。结果表明：中心布气条件下气含率与液速的径向分布比空塔更为陡峭；环隙及近壁布气时呈现出环隙高、两边低的马鞍形分布；均匀布气时径向分布较空塔更为平坦。空塔内气体分布器的影响是局部性的，充分发展段在塔内占主要部分；而在列管塔中气体分布器的影响是全局性的，气含率与液速的初始分布决定着其全塔分布。在带列管的大型鼓泡塔中难以观察到充分发展段的存在，因此，气体分布器的设计具有比空塔更为重要的意义。
재대렬관내구건적고포탑내측량료4충불동포기방식하적기함솔화액속경향분포，병여무렬관내구건적공탑중적분포진행료비교。결과표명：중심포기조건하기함솔여액속적경향분포비공탑경위두초；배극급근벽포기시정현출배극고、량변저적마안형분포；균균포기시경향분포교공탑경위평탄。공탑내기체분포기적영향시국부성적，충분발전단재탑내점주요부분；이재렬관탑중기체분포기적영향시전국성적，기함솔여액속적초시분포결정착기전탑분포。재대렬관적대형고포탑중난이관찰도충분발전단적존재，인차，기체분포기적설계구유비공탑경위중요적의의。
Gas holdup and liquid axial velocity profile were measured in a large scale bubble column with tube bundle internals with four different types of gas distributor configuration and were compared with results in the bubble column without internals. Gas distribution type directly determined gas holdup and liquid axial velocity profile in the bubble column with internals. With central distribution, gas holdup and liquid axial velocity profile showed much steeper than those in the bubble column without internals. With annulus or near wall distribution, they presented saddle profile, while with uniform distribution, both of them showed more flat than those in the bubble column without internals. The influence of gas distributor was local in the bubble column without internals and the well-developed region occupied a major part of the column, however, its impact was global in the bubble column with internals and the initial distributions of gas holdup and liquid velocity determined their distributions in the whole column. It was difficult to observe the existence of well-developed region in the bubble column with internals and therefore, designing gas distributor is more meaningful than the bubble column without internals.