摘要
以空气和水为介质,在直径为300 mm的有机玻璃实验塔中,通过小试试验装备对FST高效塔板元件进行了性能研究。通过调节不同气体流量下塔板的各项参数,测定旋流叶片仰角对塔板压力降、雾沫夹带、漏液以及传质效率的影响情况。选用直径为100 mm的传质元件、旋流叶片个数为12、旋流叶片偏转角度为30°的FST塔板为测量元件,在相同实验条件下,通过旋流叶片的仰角变化对FST塔板性能影响,与传统筛板的水力学性能进行对比。研究表明:1不同气相动能因子下,FST高效塔板压力降略高于筛板;2FST塔板适用于大气相负荷的工况,在高通量的条件下仍能保持较高的塔板效率;3当液体流速为45.8 m^3/h时,FST高效塔板雾沫夹带率较筛板低,传质效率高于筛板。作为一种新型结构塔板,FST高效塔板的操作弹性优于筛板。
The performance studies on the developed high-efficiency FST tray elements are conducted on an organic-glass pilot test tower of 300 mm in diameter with air and water as the medium. The tray pressure drop, entrainment, leakage and the efficiency of mass transfer performance with the swirl vane elevation at the bottom of the gas-liquid contact member of the FST tray are experimentally determined. The mass transfer ele- ment with a diameter of 100 mm, 12 swirl vanes and FST high-efficiency trays with 30~ angle are selected to test the impacts of the variations of angle of elevation on the performances of FST trays, which are compared with the hydraulic performances of conventional sieve plates. The study shows that ： （ 1 ） the pressure drop of high-efficiency sieve plates is slightly higher under different pneumatic factors; （2） FST tray is suitable for the atmospheric load condition, under the condition of high flux can still keep high plate efficiency ; （3） the mass transfer efficiency and flux of the FST trays are higher than those of sieve plate when the liquid flow velocity is 45.8 m3/h. The entrainment FST high-efficiency trays is lower than those of sieve plates, and mass transfer efficiency is higher. It is concluded that the operation flexibility of new-construction FST tray is higher than that of sieve plate, and has a wide application prospect.
出处
《炼油技术与工程》
CAS
2016年第4期42-46,共5页
Petroleum Refinery Engineering
基金
中国石化科技开发项目(106002000721)节能高效塔板技术研发
关键词
FST高效塔板
雾沫夹带
传质效率
漏液率
high-efficiency FST tray, entrainment, mass transfer efficiency, liquid leaking rate
