1) pressure of tower
塔压
2) pressure drop
塔板压降
1.
The critical gas velocity through valve holes,pressure drop,entrainment and weeping were measured.
采用空气-水系统,在500 mm×500 mm的方形塔内,对不同浮阀的升程对导向梯形浮阀塔板的流体力学进行了实验研究,测定了塔板压降、泄漏和雾沫夹带。
2.
The critical gas veocity through、valve holes,pressure drop,entrainment and weeping have been measured.
应用空气－水系统，在１６００ｍｍ×４００ｍｍ的矩形塔内，对梯形导向浮阀塔板的流体力学进行了实验研究，测定了阀孔临界气速、塔板压降、雾沫夹带和泄漏。
3.
The correlations have been obtained for the critical gas velocity through valve hole,pressure drop,entrainment and valve hole gas velocity at weeping point, which can be used in the design of trapezoidal directed valve trays.
本文探讨了该塔板的流体力学模型，得出梯形导向浮阀塔板的阀孔临界气速、塔板压降、雾沫夹带和泄漏点孔速的关联式，可供梯形导向浮阀塔板设计之用。
3) tray pressure drop
塔板压降
1.
Research of entrainment and tray pressure drop of new directed bridge valve trays;
新型导向桥阀塔板的雾沫夹带和塔板压降
4) atmospheric tower
常压塔
1.
Design of atmospheric tower for refining crude oil with high sulfur and high acid value;
炼制高硫、高酸值原油常压塔的设计
2.
The analysis of corrosion in atmospheric tower in SINOPEC Luoyang Petrochemical Complex concluded that the corrosion was caused by increasing amount of sulfur in crude oil,intensified impingement,improper material selection and aging of equipment etc.
通过对中国石油化工股份有限公司洛阳分公司常压塔腐蚀情况的分析,认为该塔腐蚀的主要原因是原油硫含量的升高、冲刷加剧、材料等级低及设备老化等,并针对腐蚀的成因提出了更换常压塔材质、在塔底进料段增设进料分配器,加强"一脱三注"工艺防腐蚀管理和增设腐蚀在线监控系统等的防护措施。
3.
The failure tree for atmospheric tower is established with deductive method based on the theory of failure tree analysis.
根据故障树分析理论,用演绎法建立了常减压蒸馏装置常压塔的失效故障树。
5) double column pressure swing
双塔变压
1.
Based on recent technical advances at home and abroad,puts forward proposals and idea of decreasing energy consumption by using low water ratio dehydrogenation catalyst and double column pressure swing rectification technology.
并且根据国内外最新技术进展,提出了使用低水比脱氢催化剂及双塔变压精馏技术降低装置能耗的建议和设想。
6) atmospheric column
常压塔
1.
Analyze how can lower the product acidity in operation of alcohol distillation,operate the pressure column & atmospheric column & how can solve the problem of waste water,and definitely put forward the resolvent.
对在甲醇精馏操作中如何降低产品酸度、如何对加压塔与常压塔进行操作及如何治理废水超标问题进行了分析,并提出了解决方法。
2.
The process flow , main equipment and existing problems in the system of methanol unit purified by 3 columns are introduced and the operation experience of pressurized column and atmospheric column is summarized.
总结了加压塔和常压塔的操作经验。
3.
Operating data of atmospheric column obtained from a certain refinery were used to establish modeling among flash point,ASTM-D86 data and standard relative density.
建立的常压塔产品闪点预测模型,含有6个参数、8个系数,方程形式简单,只需要很少数据,就可以进行快速计算和预测。
补充资料：冲击波超压与动压