辽宁石油化工大学学报 ›› 2026, Vol. 46 ›› Issue (4): 31-39.DOI: 10.12422/j.issn.1672-6952.2026.04.005

• 石油与天然气工程 • 上一篇    下一篇

螺旋型静态混合结构掺混数值模拟研究

徐榛康1(), 王毅杰2, 卫震3, 梅春林1, 岳林静1, 马哲恒1, 黄启玉2   

  1. 1.国家管网集团工程技术创新有限公司,天津 300457
    2.中国石油大学(北京) 机械与储运工程学院,北京 102249
    3.国家管网集团甘肃公司,兰州 甘肃 730070
  • 收稿日期:2026-03-13 修回日期:2026-04-22 出版日期:2026-08-25 发布日期:2026-07-20
  • 作者简介:徐榛康(1998-),男,硕士,从事石油与天然气工程方面的研究;E⁃mail:1250611905@qq.com
  • 基金资助:
    国家自然科学基金项目(51534007)

Numerical Simulation Study on Mixing of Spiral Static Mixer Structure

Zhenkang XU1(), Yijie WANG2, Zhen WEI3, Chunlin MEI1, Linjing YUE1, Zheheng MA1, Qiyu HUANG2   

  1. 1.PipeChina Engineering Technology Innovation Co. ,Ltd. ,Tianjin 300457,China
    2.College of Mechanical and Transportation Engineering,China University of Petroleum (Beijing),Beijing 102249,China
    3.PipeChina Gansu Branch Co. ,Ltd. ,Lanzhou Gansu 730070,China
  • Received:2026-03-13 Revised:2026-04-22 Published:2026-08-25 Online:2026-07-20

摘要:

为解决天然气掺氢管道输送过程中的浓度分层问题,提升短距离内的掺混效率,采用计算流体力学方法构建多组分湍流流动模型,对比研究了右旋叶片、交叉叶片及交叉孔隙叶片三种螺旋型静态混合结构的掺混特性、流场演化及压力损失,并以变异系数和掺混均匀度为量化指标进行了综合评价。结果表明,交叉孔隙叶片结构通过旋流+射流+二次流的协同作用,在2 m内能达到工业掺混要求(均匀度≥95%),5 m处的均匀度达到99.66%,浓度混合影响因子为9.14,压力损失为189.3 Pa;旋流+射流+二次流的协同作用是实现短距离高效掺混的核心机制,交叉孔隙叶片结构能够在保证低损输送的同时显著提升掺混效率。研究成果可为静态混合结构的选型提供参考。

关键词: 天然气掺氢, 静态混合结构, 数值模拟, 掺混均匀度, 螺旋叶片

Abstract:

To address concentration stratification during pipeline transportation of hydrogen?blended natural gas and improve mixing efficiency over short distances, a multicomponent turbulent?flow model was established using computational fluid dynamics. The mixing characteristics, flow?field evolution, and pressure loss of three spiral static mixer structures?right?handed blades, crossed blades, and crossed perforated blades were compared. The coefficient of variation and mixing uniformity were used as quantitative indicators for comprehensive evaluation. The results show that the crossed perforated?blade structure satisfies industrial mixing requirements (uniformity≥95%) within 2 m through the synergistic effects of swirl, jet flow, and secondary flow. The mixing uniformity reaches 99.66% at 5 m, with a concentration?mixing influence factor of 9.14 and a pressure loss of 189.3 Pa. It is concluded that the synergy among swirl, jet flow, and secondary flow is the core mechanism for achieving efficient short?distance mixing. The crossed perforated?blade structure significantly improves mixing efficiency while maintaining low?loss transportation. The findings provide a reference for the selection of static mixer structures.

Key words: Hydrogen-blended natural gas, Staticmixer, Numerical simulation, Mixing uniformity, Helical blade

中图分类号: 

引用本文

徐榛康, 王毅杰, 卫震, 梅春林, 岳林静, 马哲恒, 黄启玉. 螺旋型静态混合结构掺混数值模拟研究[J]. 辽宁石油化工大学学报, 2026, 46(4): 31-39.

Zhenkang XU, Yijie WANG, Zhen WEI, Chunlin MEI, Linjing YUE, Zheheng MA, Qiyu HUANG. Numerical Simulation Study on Mixing of Spiral Static Mixer Structure[J]. Journal of Liaoning Petrochemical University, 2026, 46(4): 31-39.

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