气田集输规范站内管道壁厚的计算差异
Discussion on Differences between Gas Field Gathering and Transportation Specifications for Wall Thickness Calculations of In?鄄station Pipelines
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- 引用格式:
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郭艳林,余洋,方传卓,秦兴述.气田集输规范站内管道壁厚的计算差异[J].天然气与石油,2012,30(2):0.doi:
.Discussion on Differences between Gas Field Gathering and Transportation Specifications for Wall Thickness Calculations of In?鄄station Pipelines[J].Natural Gas and Oil,2012,30(2):0.doi:
- DOI:
- 作者:
- 郭艳林1 余 洋1 方传卓2 秦兴述1
- 作者单位:
- 1.中国石油集团工程设计有限责任公司西南分公司，2.中国石油塔里木油田公司
- 关键词:
- 标准；管线等级表；壁厚；设计系数
Standard； Pipeline level table； Wall thickness； Design coefficient
- 摘要:
- 在气田集输设计规范中，GB 50350《油气集输设计规范》与ASME B31.3《工艺管道》中管道壁厚计算公式存在差异，导致国内外工程类同工况条件下管道壁厚的选择不一致。同一工程因所处地区类别不同，管道壁厚的选择也可能不同。管道等级表是工艺配管、材料选择设计的基础性文件，管道规格及壁厚是其重要组成部分，管道壁厚规格种类对于设计标准化、选材统一化、施工预制化等工作至关重要。通过工程中实际计算数据的对比，讨论能否在管道等级表中统一管道壁厚的选择，减少工程中管道规格型号，以便于集中采购与施工。
Computational formula for pipeline wall thickness in Chinese national standard GB 50350 “Specification for Oil and Gas Gathering and Transportation Design” is different from that in American standard ASME B31?郾3 “Process Pipeline”， which results in different wall thickness selections in similar working conditions in domestic and overseas projects. Even if in a same project， different wall thicknesses are selected due to different area classifications. Pipeline level tables are basic documents for process piping design and pipe material selection， pipe specs and wall thicknesses are important component of such tables and pipe wall thicknesses and specs are critical to standardization design， unified material selection and construction prefabrication. Compared are actual computational data obtained from projects， discussed are different pipe wall thicknesses selected from pipeline level tables in order to decrease pipe specs and types so as to focus on procurement and construction.
