立式常压储罐的设计探讨
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摘要
对储罐的高度、溢流保护、伴热盘管计算或设计等方面的问题进行探讨。提供储罐各段高度计算的方法或取值范围。介绍溢流保护系统中溢流管和破虹吸管的设置方式,提供用于溢流管直径和破虹吸管内气相介质质量流量的计算公式。分别对储罐常用的伴热型式及伴热介质的特点进行简介,给出储罐向外界散热的总传热系数估算值及某些侵没于储罐储存介质中的伴热盘管总传热系数经验值。介绍伴热盘管设计步骤,指出当伴热盘管过长时,宜采用若干组盘管并联的方式来解决盘管内介质流速和压降过大的问题。伴热盘管不只限于安装在罐底,而且还可在罐体上分层安装,以获得更好的伴热效果。
This paper discusses the issues of tank height,overflow protection,heat tracing coil calculation or design. It also provides the method or range of values for calculating the height of each section of the tank. The setting method of the overflow pipe and the broken siphon pipe in the overflow protection system is introduced, and the calculation formula for the diameter of the overflow pipe and the mass flow rate of the gas phase medium in the broken siphon pipe is provided. The characteristics of the common heat tracing type and heat tracing medium used in the storage tank are introduced respectively,and the estimated value of total heat transfer coefficient of heat dissipation from the storage tank to the outside and the empirical value of total heat transfer coefficient of heat tracing coils submerged in the storage tank medium are given. This paper introduces the design steps of heat tracing coil,and points out that when the heat tracing coil is too long,it is better to use several sets of coils inparallel to solve the problem of excessive medium flow velocity and pressure drop in the coil. The heat tracing coil is not limited to being installed in the tank bottom,but also can be installed in layers on the tank body to get better heat tracing effect.
This paper discusses the issues of tank height,overflow protection,heat tracing coil calculation or design. It also provides the method or range of values for calculating the height of each section of the tank. The setting method of the overflow pipe and the broken siphon pipe in the overflow protection system is introduced, and the calculation formula for the diameter of the overflow pipe and the mass flow rate of the gas phase medium in the broken siphon pipe is provided. The characteristics of the common heat tracing type and heat tracing medium used in the storage tank are introduced respectively,and the estimated value of total heat transfer coefficient of heat dissipation from the storage tank to the outside and the empirical value of total heat transfer coefficient of heat tracing coils submerged in the storage tank medium are given. This paper introduces the design steps of heat tracing coil,and points out that when the heat tracing coil is too long,it is better to use several sets of coils inparallel to solve the problem of excessive medium flow velocity and pressure drop in the coil. The heat tracing coil is not limited to being installed in the tank bottom,but also can be installed in layers on the tank body to get better heat tracing effect.
引文
1 SH/T 3007-2014,石油化工储运系统罐区设计规范[S].北京:中国石化出版社,2014.
2 JGC Corp..210-120-1-58E Atmospheric storage tanks[S],1996.
3 A.Heydari Gorji,H.Kalat Jari.Improve selection and sizing of storage tanks[J].Hydrocarbon Processing,2006,85(10):95-101.
4王海清,陈韬婕,史威等.储罐液位灾害及其关键液位确定方法研究[J].安全与环境学报,2017,17(3):989-992.
5 Prasanna Kenkre.Designing atmospheric storage tanks[J].Chemical Engineering,2017,124(3):77-82
6 AAPI STD 2350,Overfill protection for storage tanks in petroleum facilities[S].2012.
7 Amjad Dokhkan.Prevent the overfilling of storage tanks[J].Hydrocarbon Processing,2016,95(2):65-67.
8 Toghraei M..Overflow systems are the last line of defense[J].Hydrocarbon Processing,2013,92(5):92-94.
9 Crane Valves Co..Technical paper No.410 flow of fluids through valves,fittings and pipe[M].Crane Valves North America,1984.
10陈敏恒,丛德滋,方图南等.化工原理(第二版)[M].北京:化学工业出版社,1999:57-61.
11何文静.储罐内加热盘管的设计与计算[J].化工设计,2013,23(3):10-13.
12张艳禹,陈鹏鹏.固定顶储罐内盘管蒸汽伴热工艺设计[J].化工设计通讯,2015,41(1):74-77.
13汪志雄,尹瑞勇,户卫斌等.联合站原油储罐加热盘管的设计[J].油气田地面工程,2013,32(10):64-65.
14李森林.储罐蒸汽外盘管伴热的设计和计算[J].辽宁化工,2015,44(2):197-198.
15 Perry R H,Green D W.Perry's chemical engineers'handbook[M].NewYork:Mc Graw-Hill,1997.
16 Apurba Lal Das,Siddhartha Mukherjee.Storage tanks:heating and cooling system design[J].Chemical Engineering,2017,124(5):54-61.
2 JGC Corp..210-120-1-58E Atmospheric storage tanks[S],1996.
3 A.Heydari Gorji,H.Kalat Jari.Improve selection and sizing of storage tanks[J].Hydrocarbon Processing,2006,85(10):95-101.
4王海清,陈韬婕,史威等.储罐液位灾害及其关键液位确定方法研究[J].安全与环境学报,2017,17(3):989-992.
5 Prasanna Kenkre.Designing atmospheric storage tanks[J].Chemical Engineering,2017,124(3):77-82
6 AAPI STD 2350,Overfill protection for storage tanks in petroleum facilities[S].2012.
7 Amjad Dokhkan.Prevent the overfilling of storage tanks[J].Hydrocarbon Processing,2016,95(2):65-67.
8 Toghraei M..Overflow systems are the last line of defense[J].Hydrocarbon Processing,2013,92(5):92-94.
9 Crane Valves Co..Technical paper No.410 flow of fluids through valves,fittings and pipe[M].Crane Valves North America,1984.
10陈敏恒,丛德滋,方图南等.化工原理(第二版)[M].北京:化学工业出版社,1999:57-61.
11何文静.储罐内加热盘管的设计与计算[J].化工设计,2013,23(3):10-13.
12张艳禹,陈鹏鹏.固定顶储罐内盘管蒸汽伴热工艺设计[J].化工设计通讯,2015,41(1):74-77.
13汪志雄,尹瑞勇,户卫斌等.联合站原油储罐加热盘管的设计[J].油气田地面工程,2013,32(10):64-65.
14李森林.储罐蒸汽外盘管伴热的设计和计算[J].辽宁化工,2015,44(2):197-198.
15 Perry R H,Green D W.Perry's chemical engineers'handbook[M].NewYork:Mc Graw-Hill,1997.
16 Apurba Lal Das,Siddhartha Mukherjee.Storage tanks:heating and cooling system design[J].Chemical Engineering,2017,124(5):54-61.