直埋蒸汽管道设计  

Design of Straight Buried Steam Pipe

作　　者：张运翻 

机构地区：[1]机械工业第五设计研究院,天津300190

出　　处：《管道技术与设备》2007年第5期3-5,8,共4页Pipeline Technique and Equipment

摘　　要：通过3个工程设计实例的介绍和总结,对直埋蒸汽管道存在的问题进行分析和探讨,指出了保温结构存在的问题和多阻式复合保温结构应用以及保温验算的必要性。详述了暖管排潮问题和抽真空脱水法应用、钢套管防腐问题和方法、固定墩设计微量位移法应用、波纹补偿器选型和布置要求,减轻内固定点热桥效应的措施和存在的问题。Through three introductory engineering design examples and a summary of straight buried steam pipes,a number of issues were analyzed and discussed, pointing out the problem with the heat insulating structure, application of multi-layer insulation and the need for checking insulation;describing in detail such existing problem as the wanning trend and the application of vacuum dehydration, and anti-corresion steel casing on the one hand, and the application of micro displacement anchor design, selection and arrangement of bellows＇ expansion joint,and measures taken to reduce the effect of thermal bridge on the fixation point on the other.

关 键 词：直埋蒸汽管道 保温结构 排潮管 固定墩 补偿器 热桥效应 

分 类 号：TE973.1[石油与天然气工程—石油机械设备]