1.This text has introduced some safe evaluation methods of the fuzzy safe evaluation, DOW chemical fire and explosion, pool fire , Vapour Clound Explosion(VCE) , (Boiling Liquid Expanding Vapour Explosion )BLEVE model and fault tree analysis(FTA),etc.
本文分析了模糊安全评价法,DOW化学火灾、爆炸指数法,泄漏扩散后的池火灾(Pool Fire),蒸汽云爆炸(Vapour Clound Explosion ,简称VCE),沸腾液体扩展蒸汽云爆炸(Boiling Liquid Expanding Vapour Explosion,简称BLEVE)模型法和事故树分析法等安全评价方法。
2.Vapour is carried by boiler on craft -- the equipment that use steam -- drain pipe net -- catchment canister -- water supply pump prevents cavitation plant -- deoxidize implement or boiler, comprise condenser water of airtight type vapour to reclaim circulatory system, condenser water collects coal tub is belt pressing, condenser water reclaims temperature is more than 100 ℃ , be close to the saturated temperature of pressure of scanty water of the equipment that use steam, the system that shut type pays attention to vapour to carry the type selecting of drain valve of the system, equipment that use steam; Condenser water assemble and feeding scientific design, optimize type selecting and stair to match, use can system, more than heat reclaims more scientific and reasonable, achieve first-rate to use can efficiency.
工艺上由锅炉输送蒸汽——用汽设备——疏水管网——集水罐——给水泵防汽蚀装置——除氧器或锅炉，组成密闭式蒸汽冷凝水回收循环系统，冷凝水收集罐是带压的，冷凝水回收温度大于100℃,接近用汽设备疏水压力的饱和温度，闭式系统注重蒸汽输送系统、用汽设备疏水阀的选型；冷凝水汇集及输送的科学设计、优化选型以及梯级匹配，使用能系统、余热回收更加科学合理，达到最佳的用能效率。
3.Applies Redlich-Kwong-Soave equation of state to calculate the thermodynamic properties and vapour-liquid equilibrium of the n azeotropic refrigerant mixtures R22/R114 and R13B1/R152a,and azeotropic ones R500 and R502.The results show that the prediction of vapour-liquid equilibrium,bub- ble-point pressures and liquid volumes of non-azeotropic refrigerant mixtures is satisfactory.
应用 Redlich-Kwong-Soave 状态方程对非共沸混合工质 R22/R114、R13B1/R152a 的热力性质及汽液平衡进行了计算,同时还计算了两种共沸混合工质 R500和 R502。 与实验数据的比较表明,汽液平衡、饱和压力和非共沸混合工质的饱和容积都获得了令人满意的结果。
4.By analyzing the degree of freedom on phase law with the aid of mathematics, and in the use of Raoult′s law and Antoine equation, the paper deals with the relation of temperature-vapour component, temperature-liquid component and vapour-liquid equilibrium of two components homogeneous mixtures systems.
借助数学方法,结合相律中自由度数的分析,用拉乌尔(Raoult)定律、安托尼(Antoine)方程表述两组分均相混合溶液的温度与气相组成、温度与液相组成以及气相组成与液相组成的相平衡关系.
5.Without manual calculation and programming, the vapour liquid equilibrium composition and equilibrium temperature of binary constituent solutions can be automatically calculated by the use of Excel spreadsheet. The theoretical number of plates in the fractionating columns and the vapour liquid equilibrium composition on every plate can also be determined.
不用手工计算和编程 ,利用Excel电子表格即可自动计算双组分溶液的汽液相平衡组成和温度 ,确定精馏塔的理论板数及各块板上的汽液平衡组成
6.The control velocity over liquid level, face velocity and vapour extraction efficiency have been measured respectively in condition of different hood heights and fan speeds for both the complex and ordinary vapour hoods.
对复合式和普通式排风罩，在不同罩口高度和风机转速条件下，分别测定了液面控制速度、罩口吸气速度和排雾效率。
7.Three typical examples of chemical engineering are calculated by using Excel. The vapour-liquid equilibrium composition and its boiling point , the number of ideal plates, the vapour-liquid equilibrium composition on various plates, and the composition of flue gas are obtained.
以化工中3个典型计算为例,用Excel电子表格计算汽-液平衡组成及温度,确定了理论塔板数及各块板上汽-液平衡组成,求出了烟道气组成.
8.The rate of UDMH vapour detained in respiratory tract(Rd)was more than 95%,which was not influenced by the alteration and fluctuation of the concentration of UDMH vapour(C1)and ventilative volume of rabbits (Vr).
UDMH蒸气经家兔呼吸道的滞留率高达95％以上，不受吸入气UDMH蒸气浓度C1和动物通气量Vr改变和波动的影响。
9.Adsorption isotherms of carbon disulphide(CS2) vapour on the granular activated carbon (GAC) and several kinds of activated carbon fiber (ACF) were determined by gravimetric method. The thermodynamics of the adsorption was also studied. The results indicated that ACF adsorbs CS2 vapour in a physical way with higher adsorption heat, work, and entropy than GAC does.
通过吸附热力学研究,计算出CS_2蒸气在活性碳纤维(ACF)上的吸附热、吸附功和吸附熵.
10.Abstract: Through analysis of the components of coking on different parts of desullfur system of single tower and the waste water containing sulfur , we find the cause of coking in the stripping desulur system from single tower is the polymerization reaction of carbohydrate and the separattion of varied solid powders, organic compounds, and all corrosive productions of metal out of waste water in high temperature, therefore,the solving method is how to decrease the oil content ,how to depolymerize form the carbohydrate and how to antisepticize by vapour of waste water.
文摘:对单塔脱硫系统中不同部位的垢物及现场催化含硫污水进行了分析测定，结果表明：塔内污垢成分及含量随塔体部位的不同而不尽相同，单塔汽提脱硫系统中垢物的形成，主要是由于污水中所含各类粉尘、有机物、金属腐蚀物等在高温下因石油碳氢化合物的析出及其单体的聚合反应所致.如何降低污水中的含油成分、减少聚合反应的生成、防止污水蒸气对塔体材料的腐蚀，是阻垢、除垢和防垢应解决的关键问题.
