化工进展2017，Vol.36Issue(4)：1192-1201,10.DOI:10.16085/j.issn.1000-6613.2017.04.006
海上天然气脱酸塔内排管式液体分布器各喷淋密度下的孔径研究
Research on orifices diameter of calandria liquid distributor used in offshore deacidification tower with different spray densities
摘要
Abstract
In recent years,floating liquefied natural gas(FLNG)has become a new field that attracts increasing attention. Study on structure design of liquid distributor which is one of the most important tower internals under the condition of sloshing is little. A calandria liquid distributor with diameter of 1.2 meters with 52 orifices was studied in this paper by utilizing experimental device consisting of a shaking platform and a water circulation system. Hydraulic experiments were carried out under the condition of static situation,roll 5 degrees and pitch 5 degrees. By changing the liquid distributor's spray density,the distribution performance's changes of the liquid distributor and its branch pipes with different orifice diameters in sloshing condition were analyzed. Combining with reasonable range of outlet velocity and outlet flow ununiformity's increasing degree that compared with static situation, optimal outlet diameter design with various spray densities under sloshing condition within 5 degrees was determined. Results showed that calandria liquid distributor with small-size orifices is influenced less by sloshing condition,but its outlet velocity is big;under the sloshing condition within 5 degrees, the orifice diameter is designed to 4mm,6mm and 8mm when the spray density is about 4.4m3/(m2·h), 8.8m3/(m2·h) and 13.2m3/(m2·h),which can not only ensure that the outlet velocity is reasonable,but also can keep the good uniform performance of calandria liquid distributor.关键词
天然气/液化/塔器/排管式液体分布器/不均匀度Key words
natural gas/liquefaction/column/calandria liquid distributor/ununiformity分类
能源科技引用本文复制引用
唐建峰,崔健,修云飞,杨文刚,金新明,张伟明..海上天然气脱酸塔内排管式液体分布器各喷淋密度下的孔径研究[J].化工进展,2017,36(4):1192-1201,10.基金项目
工信部联装项目([2014]495). （[2014]495）
