埋地热油管道保温层优化与经济评价
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摘要
以保温材料的年分摊费用和保温后的年散热损失费用之和为目标优化函数,给出了埋地热油输送管道保温层经济厚度的计算模型。模型考虑了埋设深度对管道周围环境温度、保温层外壁放热系数及总传热系数的影响。借助C#程序语言编制了埋地热油管道保温层厚度优化的计算机求解程序和EXCEL经济评价程序,结合实例进行了计算。结果表明,埋地热油管道保温层厚度对项目的经济效益具有较为明显的影响,因此确定保温层厚度时要兼顾技术层面及经济层面的要求。研究结果可为热油输送管道施工的优化设计提供一定的理论参考。
The objective optimization function was set by the summary of the insulation materials' annual sharing cost and the annual heat losing cost after insulation and the calculating model of buried hot oil pipelines' insulation economical thickness was given.The model included the burying depth's influences on around pipelines ambient temperature,the heat transfer coefficient of the outer wall insulation,and the overall heat transfer coefficient.With the help of C# programming language,a computer program was developed to optimize the thickness of insulation layer of buried hot oil pipeline with EXCEL to work out economic evaluation procedures,combining with examples of calculation.The results showed that:The determination of buried hot oil pipeline insulation thickness would have some impact on the economic benefits of the project,and it should take the double requirements into account determining the thickness on both technology and economy.That could provide a theoretical reference to the hot oil transportation construction's optimizing design.
The objective optimization function was set by the summary of the insulation materials' annual sharing cost and the annual heat losing cost after insulation and the calculating model of buried hot oil pipelines' insulation economical thickness was given.The model included the burying depth's influences on around pipelines ambient temperature,the heat transfer coefficient of the outer wall insulation,and the overall heat transfer coefficient.With the help of C# programming language,a computer program was developed to optimize the thickness of insulation layer of buried hot oil pipeline with EXCEL to work out economic evaluation procedures,combining with examples of calculation.The results showed that:The determination of buried hot oil pipeline insulation thickness would have some impact on the economic benefits of the project,and it should take the double requirements into account determining the thickness on both technology and economy.That could provide a theoretical reference to the hot oil transportation construction's optimizing design.
引文
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[2]李春成,谢禹钧,李世武,等.工业管道保温结构的优化设计及节能分析[J].辽宁石油化工大学学报,2006,26(2):52-55.
[3]李少华,刘宝玉,戚积功,等.架空高温输油管道保温层厚度设计[J].当代化工,2011,40(1):97-99.
[4]王海琴.埋地热油管道变厚度保温层的设计[J].油气储运,2002,21(1):17-19.
[5]张德姜,王怀义,刘绍叶.石油化工装置工艺管道安装设计手册第1篇:设计与计算[M].北京:中国石化出版社,1994.
[6]杜义朋,王为民,王亮,等.列表法计算架空蒸汽管道保温层经济厚度[J].辽宁石油化工大学学报,2012,32(4):48-51.
[7]杨世铭,陶文栓.传热学[M].北京:高等教育出版社,1998:424-430.
[8]董正远.埋地热油管道经济埋深的计算模型[J].油气储运,2007,26(9):13-16.
[9]国家标准局.石油化工设备和管道隔热技术规范SH 3010—2000[S].北京:国家石油和化学工业局,2000.
[10]徐荣,吴芸.工程造价管理[M].2版.上海:同济大学出版社,2010.
[11]罗刚君.Excel VBA程序开发自学宝典[M].3版.北京:北京航空航天大学电子工业出版社,2014.
[12]屈正斌.石油勘探开发项目经济评价方法研究[J].现代营销(下旬刊),2017(2):121.
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