天然气与石油2025，Vol.43Issue(5)：93-100,8.DOI:10.3969/j.issn.1006-5539.2025.05.012
掺氢天然气管道泄漏速率分析
Analysis of leakage rate characteristics of hydrogen-blended natural gas pipelines
摘要
Abstract
There is a significant leakage risk of hydrogen-blended natural gas pipelines when transporting hydrogen through existing natural gas infrastructure.To accurately assess the dynamic leakage risk of hydrogen-blended natural gas pipelines and ensure the safe operation of hydrogen-blended gas networks,a model for hydrogen-blended natural gas pipeline leakage has been developed and validated through software simulations.This model can be applied to analyze the leakage behavior of a single pipe within a hydrogen-blended natural gas network during dynamic leakage process.Based on a hydrogen-blended natural gas test site,specific pipeline and environmental parameters were defined,and the mathematical model was used to conduct a detailed analysis of the leakage characteristics under dynamic conditions.The results indicate that the mass leakage rate of the gas decreases as the proportion of hydrogen blending increases,while the volumetric leakage rate increases accordingly,thereby reducing the overall leakage duration of the pipeline.This study provides a theoretical basis for the safe management of the hydrogen-blended gas pipeline networks and offers guidance for the safe operation of the hydrogen-blended natural gas pipelines and the optimization of emergency measures.关键词
掺氢天然气/单管泄漏数学模型/热力学特性/泄漏速率动态模拟Key words
Hydrogen-blended natural gas/Mathematical model of single-pipe leakage/Thermodynamic properties/Dynamic simulation of leakage rate引用本文复制引用
房小满,朱松强,王琳,陈娟,谢秋韵,朱辰,杨浩..掺氢天然气管道泄漏速率分析[J].天然气与石油,2025,43(5):93-100,8.基金项目
国家重点研发计划项目"中低压纯氢与掺氢燃气管输工艺与掺氢设备研发"(2021YFB4001602) （2021YFB4001602）
浙江能源天然气集团有限公司支撑课题"天然气管道掺氢、输送、分离应用技术研究及浙能先导示范项目"(ZNKJ-2021-108) （ZNKJ-2021-108）
国家自然科学基金青年学者项目"基于流固耦合动力学的气液两相流管道振动特性研究"(51904259) （51904259）
国家自然科学基金企业创新与发展联合基金"深水蜡晶与水合物多相混输管道固相沉积与安全运输机制"(U19B2012) （U19B2012）
