煤气与热力2025，Vol.45Issue(1)：后插6-后插8,3.
城镇燃气管道沿线任意点燃气温度的计算
Calculation of Gas Temperature at Any Point along Urban Gas Pipeline
方媛媛 1白丽萍 2于燕平 1雷素敏 1周凡1
作者信息
- 1. 北京市燃气集团研究院,北京 100011
- 2. 北京市燃气集团有限责任公司,北京 100035
- 折叠
摘要
Abstract
The heat balance equation of heat transfer process between gas pipeline and surrounding environment is established.Through analysis,it is proven that when Joule Thomson effect is not consid-ered,the temperature formula at any point along the gas pipeline in Article 3.3.3 of Code for Design of Gas Transmission Pipeline Engineering(GB 50251-2015)can be used to calculate the gas temperature at any point along the urban gas pipeline.The heat transfer process of a section of gas pipeline is analyzed,and it is proved that the formula is suitable for both the urban gas buried pipeline and the overhead pipeline.When buried laying,the surface heat transfer coefficient be-tween the pipeline outer wall and the environment is the composite heat transfer coefficient of convective heat transfer and heat conduction between the pipe out-er wall and the soil.When overhead laying,it is the composite heat transfer coefficient of convective heat transfer and radiation heat transfer between the pipeline outer wall and the air.关键词
城镇燃气管道/燃气温度计算/公式推导与验证Key words
urban gas pipeline/gas tempera-ture calculation/formula derivation and verification分类
建筑与水利引用本文复制引用
方媛媛,白丽萍,于燕平,雷素敏,周凡..城镇燃气管道沿线任意点燃气温度的计算[J].煤气与热力,2025,45(1):后插6-后插8,3.
