| 超声波流量计对掺氢天然气管路结构的适应性研究 |
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| 引用本文： | 冀守虎,孙晨,安永伟,闫双杰,贾冠伟,许未晴,刘伟,李明昕,蔡茂林.超声波流量计对掺氢天然气管路结构的适应性研究[J].力学与实践,2023,45(2):333-344. |
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| 作者姓名： | 冀守虎 孙晨 安永伟 闫双杰 贾冠伟 许未晴 刘伟 李明昕 蔡茂林 |
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| 作者单位： | *. 河南大学物理与电子学院，河南开封 475004; †. 国家电投集团科学技术研究院有限公司，北京 102209; **. 气动热力储能与供能北京市重点实验室，北京 100191; ††. 北京航空航天大学自动化科学与电气工程学院，北京 100191; ***. 正星氢电科技郑州有限公司，郑州 450000 |
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| 基金项目： | 河南省科技攻关项目(222102220090)；;中国博士后科学基金(2021M701096)；;国家自然科学基金(51875012)资助； |
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| 摘 要： | 氢气作为全球脱碳目标的重要载体，输送量是限制其大规模应用的主要瓶颈。掺氢天然气是实现大流量输送氢气的一种重要途径。氢气的掺入导致流速畸变，降低超声波流量计的性能。以掺入氢气的甲烷为主要工质，对8种类型掺混管路内部的气体流动状态进行模拟仿真研究，分析流场内气体速度和氢气浓度的分布状态；并对超声波流量计的适应性进行分析，确定其推荐安装位置。在超声流量计的适应性分析中，三匝螺旋管时仅需15D；对于单螺旋结合变径管的适应性影响更大，最小需要96D。通过比较，掺混管路C为最佳模型，掺混均匀时的氢气摩尔分数约为3.9%。可为超声波流量计在掺氢天然气准确计量方面提供参考。
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| 关 键 词： | 掺氢天然气 超声流量计 管路结构 适应性 |
| 收稿时间： | 2022-11-07 |
| 修稿时间： | 2022-12-12 |
INVESTIGATION ON ADAPTABILITY OF ULTRASONIC FLOWMETER FOR HYDROGEN BLENDED TO NATURAL GAS PIPELINE STRUCTURE |
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| JI Shouhu,SUN Chen,AN Yongwei,YAN Shuangjie,JIA Guanwei,XU Weiqing,LIU Wei,LI Mingxin,CAI Maolin.INVESTIGATION ON ADAPTABILITY OF ULTRASONIC FLOWMETER FOR HYDROGEN BLENDED TO NATURAL GAS PIPELINE STRUCTURE[J].Mechanics and Engineering,2023,45(2):333-344. |
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| Authors: | JI Shouhu SUN Chen AN Yongwei YAN Shuangjie JIA Guanwei XU Weiqing LIU Wei LI Mingxin CAI Maolin |
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| Institution: | *. School of Physics and Electronics, Henan University, Kaifeng 475004, Henan, China; †. State Power Investment Corporation Research Institute Co., Ltd, Beijing 102209, China; **. Pneumatic and Thermodynamic Energy Storage and Supply Beijing Key Laboratory, Beijing 100191, China; ††. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China; ***. Censtar H2-Elcetricity Science & Technology Zhengzhou Co., Ltd, Zhengzhou 450000, China |
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| Abstract: | Hydrogen as an important vehicle for global decarbonization goals, the amount of transport is the main bottleneck limiting its large-scale application. Hydrogen blended to natural gas can realize the large-scale ransportation for hydrogen. The hydrogen blended natural gas causes distortion of the flow rate and reduce the performance of ultrasonic flowmeter. In this paper, hydrogen mixed with methane is used as the main working medium. The internal flow field of the 8 types of blended pipelines were simulated and studied. The distribution of gas velocity and hydrogen concentration in the internal flow field were analyzed. The adaptability of the ultrasonic flowmeter is analyzed to determine its recommended installation position. In the adaptability analysis of ultrasonic flowmeter, three-turn spiral pipeline only needs 15D; The adaptability of one-turn spiral tube combined reducer is bigger, the minimum is 96D. By comparison, the blended pipeline C is the best. Hydrogen mole fraction is about 3.9% when hydrogen and natural gas is blended uniformly. The research results can provide reference for accurate metering of hydrogen blended to natural gas with ultrasonic flowmeter. |
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| Keywords: | hydrogen blended to natural gas ultrasonic flowmeter pipeline structure adaptability |
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