掺氢对天然气管道工艺参数影响的模拟分析
Simulation analysis of the influence of hydrogen blending on the process parameters of natural gas pipelines
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- 引用格式:
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王宁宁,孙东旭,赵爽,任帅,吴明,郭大成.掺氢对天然气管道工艺参数影响的模拟分析[J].天然气与石油,2025,43(5):66-73.doi:10.3969/j.issn.1006-5539.2025.05.009
WANG Ningning, SUN Dongxu, ZHAO Shuang, REN Shuai, WU Ming, GUO Dacheng.Simulation analysis of the influence of hydrogen blending on the process parameters of natural gas pipelines[J].Natural Gas and Oil,2025,43(5):66-73.doi:10.3969/j.issn.1006-5539.2025.05.009
- DOI:
- 10.3969/j.issn.1006-5539.2025.05.009
- 作者:
- 王宁宁1 孙东旭1 赵爽1 任帅2 吴明1 郭大成3
WANG Ningning1, SUN Dongxu1, ZHAO Shuang1, REN Shuai2, WU Ming1, GUO Dacheng3
- 作者单位:
- 1. 辽宁石油化工大学石油天然气工程学院, 辽宁 抚顺 113001; 2. 内蒙古西部天然气股份有限公司, 内蒙古 鄂尔多斯 017000; 3. 中国石油规划总院, 北京 102200
1. College of Petroleum and Natural Gas Engineering, Liaoning Petrochemical University, Fushun, Liaoning, 113001, China; 2. Inner Mongolia Western Natural Gas Co., Ltd., Ordos, Inner Mongolia, 017000, China; 3. China Petroleum Planning Institute, Beijing, 102200, China
- 关键词:
- 掺氢天然气;水力工况;节流特性;离心压缩机;管道输送工艺
Hydrogen-blended natural gas; Hydraulic conditions; Throttling characteristics; Centrifugal compressor; Pipeline transmission process
- 摘要:
氢气与天然气的物性差异较大,掺氢会对天然气管道工艺参数造成较大影响,因此需系统探究高压条件下不同掺氢比对天然气管道工艺参数的影响规律。基于HYSYS软件模拟了0~30%的掺氢比对天然气管道输送水力工况、节流阀节流效应和离心压缩机运行特性的影响,并对工艺参数的变化进行分析。结果表明:掺氢增大了出站压力和管道输送体积流量,降低了输气功率;压力降相同时,提高起点压力对提高输气功率效果更佳。掺氢会抑制节流产生的焦耳—汤姆逊效应,节流后转变压力和转变温度的变化有助于选择合适的掺氢比。保持转速不变,掺氢可降低离心压缩机性能和管道输气能力。研究结果为天然气管道掺氢后相关工艺参数的确定提供了有效参考。
Due to significant difference in physical properties between hydrogen and natural gas, hydrogen blending will have a great impact on the process parameters of natural gas pipeline. This study systematically explores the influence of different hydrogen blending ratios on the process parameters of natural gas pipeline under high-pressure conditions. The effects of 0~30% hydrogen blending ratio on the hydraulic conditions, throttling effect and centrifugal compressor operating characteristics of natural gas pipeline transmission were simulated using HYSYS software. The changes in operating parameters were then discussed and analyzed. The results show that the hydrogen blending increases the outlet pressure and pipeline volume flow rate while reducing the gas transmission power. When the pressure drop remains constant, increasing the initial pressure has a better effect on improving the gas transmission power. The Joule-Thomson effect caused by throttling can be suppressed by hydrogen blending. Studying the change of transition pressure and temperature after throttling helps select an appropriate hydrogen blending ratio. Maintaining constant speed, hydrogen blending decreases the performance of centrifugal compressor, reducing the pipeline gas transmission capacity. The research results provide an effective reference for the determination of relevant process parameters after hydrogen blending in natural gas pipelines.
