煤气与热力2026，Vol.46Issue(4)：85-88,4.
城镇燃气管道阀门井甲烷逸散排放强度分析
Analysis of Methane Fugitive Emission Intensity from Valve Wells of Urban Gas Pipelines
李天昊 1雷宏亮 2王昊 1徐先港 1董建锴 1曹慧哲1
作者信息
- 1. 哈尔滨工业大学 建筑与设计学院寒地城乡人居环境科学与技术工业和信息化部重点实验室,黑龙江哈尔滨 150006
- 2. 沭阳华润燃气有限公司,江苏宿迁 223600
- 折叠
摘要
Abstract
A field measurement and analysis of meth-ane fugitive emission intensity from valve wells of urban gas pipelines was carried out using the flux chamber method.A total of 60 sets of methane fugitive emission data were collected from valve wells across polyethylene(PE)pipelines.Of these,11 valve wells feature steel valves and 49 feature PE valves.The pro-portion of valve wells with fugitive emissions is 16.95％.At a pressure of 0.24 MPa,the average meth-ane fugitive emission intensity is approximately 25.94 mg/h per kilometer of pipeline.Methane emissions from urban gas pipeline valve wells show a skewed dis-tribution:30％of the emission sources accounts for 95.03％of total methane emissions.Valve wells with a nominal outer pipe diameter between 110 mm and 160 mm and those fitted with PE valves exhibit a higher probability of methane fugitive emissions.关键词
城镇燃气管道/阀门井/甲烷逸散排放强度Key words
urban gas pipeline/valve well/methane fugitive emission intensity分类
建筑与水利引用本文复制引用
李天昊,雷宏亮,王昊,徐先港,董建锴,曹慧哲..城镇燃气管道阀门井甲烷逸散排放强度分析[J].煤气与热力,2026,46(4):85-88,4.
