Simulation of quench system of ethylene plant by real components method;
真组分法模拟乙烯装置急冷系统
This work is devoted to elucidating the natural hydraulic circulation in quench system, which is a key process in an ethylene plant.
对乙烯装置中急冷系统的水循环进行了分析 ,给出了水循环的计算方法 ,并编写了计算程序对急冷系统的水循环进行模拟 ;用该程序对燕山石化的急冷系统进行了计算 ,并与国外的计算结果进行了对
Quench system usually is the bottleneck of ethylene plants, whichrestricts the yield and general performance of ethylene mills.
急冷系统是乙烯裂解气处理的第一道工序,汽油分馏塔是乙烯装置中技术难度最大的设备。
Dynamic simulation of VWV chilled water system and its control system;
变流量冷水系统及其控制系统的动态仿真
Analyses the large temperature difference chilled water systems.
结果表明 :当冷水机组冷水初温等于或大于 7℃时 ,1 0℃温差与 5℃温差时冷水机组的能耗基本相同 ,而蒸发器压降明显减小 ;冷水系统采用 1 0℃温差较 5℃温差冷水量减少一半 ,水泵能耗减少 ,水系统一次投资减少 ;即使空调机组一次投资略有增加 ,空调水系统的一次投资可减少 5%左右 ,空调水系统运行费用减少 30 %左右。
Automation switch of pump motor in the water cooling system by PLC;
PLC实现水冷系统中水泵电机的自动投切
Some important parameters about the water cooling system of high current RFQ cavities, such as the heat transfer coefficiency and the optimized temperature of the cooling water, were obtained.
利用有限元计算软件ANSYS分析了热效应对加速腔共振频率的影响,计算了RFQ腔体与热效应有关的参数,如水冷系统的冷却水温度、热交换系数等。
Maintenance and reconstruction of water cooling system for VF-320 X-ray fluorescence spectrometer were discussed in this paper.
针对X射线荧光光谱仪的水冷系统内循环水压下降的问题,提出了在原冷却系统的泵前串接一个不锈钢泵的方法。
This article provides a comparison between the improving water-cooling system and the old cooling system fromthe economical and practical aspect, and it further specifies the design, steps of the water-cooling system by using fire cister
本文从经济、实用角度对改进型水冷系统和以往冷却系统进行比较,并从设计角度列出了利用消防水池作冷却水系统的设计步骤。
According 2124 aluminium alloy craftwork specialty and constriction modulus,combining specification,ensuring design\'s project of 2124 alloy 255 mm×1 500 mm ingot specification mould、water-cooling system、base and filler.
根据2124铝合金工艺特性和收缩系数,结合铸锭的规格,确定了铸造2124铝合金255 mm×1500 mm规格铸锭的结晶器、水冷系统、底座及漏斗的设计方案。
OPERATION OPTIMIZATION OF QUENCH SYSTEM IN ETHYLENE PLANT FOR REDUCING ENERGY CONSUMPTION
优化乙烯装置急冷系统操作降低能耗
Process Simulation and Study of Ethylene Quench System of Lanzhou Petrochemical Co.;
兰州石化乙烯装置急冷系统工艺模拟及研究
APPLICATION OF VISCOSITY REDUCING TECHNOLOGY IN THE MODIFICATION OF QUENCH OIL SYSTEM IN ETHYLENE PLANT
减粘塔技术在乙烯急冷系统改造中的应用
Study on Process Simulation for Quench System in Ethylene Plant Based on Secondary Processing Oil;
基于二次油的乙烯装置急冷系统工艺模拟与研究
Retrofitting Quench Oil System is Key to Saving Energy and Reducing Emissions for Ethylene Units
乙烯装置节能减排的重点是改造急冷油系统
Reliability Analyse and Test Frequency Optimization of Motorized Isolation Valves of Emergency Core Cooling System;
应急堆芯冷却系统电动阀的可靠性分析及试验频率优化
Effect of Acute Cold and Heat Stresses on Expressions of ERKs and p38 MAPKs in the Central Nervous System of Rats;
急性冷热应激对中枢神经系统ERK和p38信号转导通路的影响
Practice of Applying Large Split Bearing for Emergency Treatment of Drive System Failure of Straight Line Cooler
采用大型剖分轴承紧急处理带冷机传动系统故障
Study on the nutrient cycling in the residues of forest ecosystem composed of Abies georgei var smithii in Sejila Mountain of Tibet
西藏色季拉山急尖长苞冷杉林生态系统凋落物养分循环研究
No refrigerant in the refrigerant system.
冷却系统中没有冷却剂。
cold pressing die CADCAM system
冷冲模CADCAM系统
Freezing and Melting Process Research of Ice Thermal Storage Air-conditioning System;
冰蓄冷空调系统蓄冷释冷过程的研究
Energy saving operation of a cold storage refrigeration system under variable condensing conditions
冷库制冷系统变冷凝工况的节能运行
Drain cooling system (refer to Group 7, Cooling System).
排干冷却系统（见单元7-冷却系统）。
The dirtying principle and deposal methods of condenser in refrigeratory system
冷库制冷系统冷凝器结垢成因及清洗方法
gravity circulation water cooling system
温差循环液冷却系统
spent fuel cooling system
辐照燃料元件冷却系统
a system that cools by evaporation.
用蒸发作用冷却的系统。