1) opening ratio of tower plate
塔板开孔率
1.
The quality of scrubbed gas accords with requirements after the develop- ment of the design of water scrubber for use in the syntheis of oxalic acid now in our coun- try,the methods are;increasing the water quantity to 50m~3/h,enlarging the opening ratio of tower plate to 19.
对目前国内合成法生产草酸所用水洗塔,采用加大水量到50m~3/h,提高塔板开孔率到19。
2) PACKING FREE-AREA
板开孔率
3) porosity of drag plate
减速板开孔率
4) perforated ratios of distributor
分布板开孔率
1.
Firstly, the parameters of bed pressure drop, distributor pressure drop, the instantaneous evolution of bubbles and profile of radial solid holdups adopted three perforated ratios of distributors (φ=0.
2,结合本实验室测量数据,首先优化气固流化床分布板开孔率,然后采用最佳开孔率分布板,测量气―固流化床内局部固体浓度、床层压降等参数,并与模拟值进行比较。
5) Sieve tray
筛孔塔板
1.
Dry plate pressure drop of conventional sieve tray and tapered sieve tray were measured with air in a φ500 mm transparent tower made of polymethacrylate.
在直径500 mm的有机玻璃塔内,以空气为物系,对普通筛孔塔板和锥形筛孔塔板的干板压降进行测定,根据Hughmark-O'Connell关联式计算得到孔流系数。
2.
Two different types of orifices were opened on wall of exit weir of both sieve tray and fixed valve tray for comparison.
针对固定阀塔板和筛孔塔板,在出口堰上开倒梯形和条形两种型式的分流孔,对从堰上分流孔分流出去的液量作了实验研究,得到了分流液量随气、液流量变化的规律。
3.
Possibility of the unit expansion to 56 000 b/d has been discussed together with the optimum design criterion of sieve tray.
深入探讨了对筛孔塔板的优化设计判据,指出应根据塔板的作用来区别考虑塔板的适宜操作范围。
6) oblique hole tray
斜孔塔板
1.
Application of oblique hole tray in the treatment of sewage containing methanol in YULIN gas field;
斜孔塔板在榆林气田含醇污水处理中的应用
2.
On the base of traditional ammonia still process, the course of ammonia distillation is simulated and optimized by PRO/II software, and the new multiple overflow and composite oblique hole tray is applied to correct the old process, then the new distillation unit is established.
在传统蒸氨工艺基础上,将氨蒸馏分离采用PRO/II软件化工过程模拟优化,并采用新型多溢流复合斜孔塔板,修正原工艺中的不足,建了新的化工蒸馏单元。
3.
The text introduced our company present situation and reforming program of the oblique hole tray.
介绍了公司粗苯系统脱苯塔的现状及脱苯塔的改造方案,通过采用斜孔塔板后,脱苯效率明显提高,生产运行顺利,投资少见效快。
补充资料：布气临界开孔率
分子式：
CAS号：
性质：均匀分布流体的分布板的最小开孔率，也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念，导得分布板的临界开孔率式中，流量系数c=0.99[d0/t)-0.125；L为床高；g为重力加速度；u为表观线速；ρf为流体密度；△ρ为颗粒与流体的密度差；d0为分布板孔径；亡为分布板厚度，对于具有散式特征的某些细粒流化床；n=4.65；εmf=0.4。
CAS号：
性质：均匀分布流体的分布板的最小开孔率，也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念，导得分布板的临界开孔率式中，流量系数c=0.99[d0/t)-0.125；L为床高；g为重力加速度；u为表观线速；ρf为流体密度；△ρ为颗粒与流体的密度差；d0为分布板孔径；亡为分布板厚度，对于具有散式特征的某些细粒流化床；n=4.65；εmf=0.4。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条