掺氢天然气管道泄漏速率分析
Analysis of leakage rate characteristics of hydrogen-blended natural gas pipelines
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- 引用格式:
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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.doi:0.3969/j.issn.1006-5539.2025.05.012
FANG Xiaoman, ZHU Songqiang, WANG Lin, CHEN Juan, XIE Qiuyun, ZHU Chen, YANG Hao.Analysis of leakage rate characteristics of hydrogen-blended natural gas pipelines[J].Natural Gas and Oil,2025,43(5):93-100.doi:0.3969/j.issn.1006-5539.2025.05.012
- DOI:
- 0.3969/j.issn.1006-5539.2025.05.012
- 作者:
- 房小满1 朱松强1 王琳2 陈娟2 谢秋韵2 朱辰2 杨浩3
FANG Xiaoman1, ZHU Songqiang1, WANG Lin2, CHEN Juan2, XIE Qiuyun2, ZHU Chen2, YANG Hao3
- 作者单位:
- 1. 浙江省能源集团有限公司, 浙江 杭州 310012; 2. 西南石油大学机电工程学院, 四川 成都 610500; 3. 中国石油工程建设有限公司西南分公司, 四川 成都 610041
1. Zhejiang Energy Group Co., Ltd., Hangzhou, Zhejiang, 310012, China; 2. School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, China; 3. CPECC Southwest Company, Chengdu, Sichuan, 610041, China
- 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
Hydrogen-blended natural gas; Mathematical model of single-pipe leakage; Thermodynamic properties; Dynamic simulation of leakage rate
- 摘要:
在利用现有天然气管道输送氢气的过程中,管道泄漏风险显著。为精准评估掺氢天然气管道动态泄漏风险,保障掺氢天然气管网运行安全,建立了掺氢天然气管道泄漏模型,并通过了软件模拟验证。模型可用于分析掺氢天然气管网中某一管道在动态泄漏过程中的泄漏情况。针对某掺氢天然气试验站场的管网特性,设定了天然气管道参数和环境参数,并采用新建模型对天然气管道在动态泄漏过程中的泄漏特性进行详细分析。研究发现,随着掺氢比增加,气体质量泄漏速率降低,但量泄漏速率却相应增加,导致天然气管道泄漏时间减少。研究结果为掺氢天然气管网的安全管理提供了理论基础,并为掺氢天然气管网的安全运行和应急措施优化提供了参考。
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.
