孔板流量计气固两相流冲蚀规律及主控因素研究
Study on Erosion Law and Governing Factors of Orifice Plate Flowmeter in Gas-Solid Two-Phase Flow
DOI: 10.12677/jogt.2026.484057, PDF,    科研立项经费支持
作者: 陈纪任*, 刘浩伸：重庆科技大学安全科学与工程学院，重庆
关键词: 气固两相流；DPM；冲蚀；孔板流量计；Gas-Solid Two-Phase Flow； DPM； Erosion； Orifice Plate Flowmeter
摘要: 在天然气生产过程中，井筒内会携带出固体颗粒对孔板流量计产生冲蚀，导致计量精度受到影响，甚至引发安全事故。为探究天然气生产中颗粒对孔板流量计的冲蚀影响，弥补现有研究在气固两相流条件下相关规律的不足，为揭示气固两相流中孔板流量计的冲蚀规律，本文基于离散相模型(DPM)开展数值模拟，聚焦于颗粒质量流量、介质流速、粒径及形状因子四个关键变量对冲蚀行为的定量影响。结果表明：质量流量(0.001~0.02 kg/s)和介质流速(6~15 m/s)是冲蚀强度的主控因素，前者通过增加颗粒碰撞频率使平均冲蚀率提升19.96倍，后者通过提高颗粒撞击动能使其提升13.09倍；相比之下，粒径和形状因子的改变对颗粒运动状态影响有限，平均冲蚀率仅分别变化8.03%和13.63%。本研究可为孔板流量计的安全运行提供理论依据和工程参考。
Abstract: During natural gas production, solid particles entrained in the wellbore can cause erosion on the orifice plate flowmeter, affecting measurement accuracy and even leading to safety accidents. To investigate the erosion effects of particles on the orifice plate flowmeter in natural gas production, fill the gaps in existing research under gas-solid two-phase flow conditions, and reveal the erosion mechanism of orifice plate flowmeters, this paper conducted numerical simulations based on the Discrete Phase Model (DPM). The study focused on the quantitative effects of four key variables—particle mass flow rate, fluid velocity, particle diameter, and shape factor—on erosion behavior. The results indicate that mass flow rate (0.001~0.02 kg/s) and fluid velocity (6~15 m/s) are the governing factors for erosion intensity. The former increased the average erosion rate by 19.96 times by increasing the particle collision frequency, while the latter increased it by 13.09 times by enhancing the particle impact kinetic energy. In contrast, changes in particle diameter and shape factor have a limited influence on particle motion states, with the average erosion rate varying by only 8.03% and 13.63%, respectively. This study provides a theoretical basis and engineering reference for the safe operation of orifice plate flowmeters.
文章引用：陈纪任, 刘浩伸. 孔板流量计气固两相流冲蚀规律及主控因素研究[J]. 石油天然气学报, 2026, 48(4): 527-540. https://doi.org/10.12677/jogt.2026.484057

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