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天然气井井下定压节流阀数值模拟及结构优化

钟功祥 王进 蒋晓波

钟功祥, 王进, 蒋晓波. 天然气井井下定压节流阀数值模拟及结构优化[J]. 机械科学与技术, 2017, 36(11): 1666-1673. doi: 10.13433/j.cnki.1003-8728.2017.1105
引用本文: 钟功祥, 王进, 蒋晓波. 天然气井井下定压节流阀数值模拟及结构优化[J]. 机械科学与技术, 2017, 36(11): 1666-1673. doi: 10.13433/j.cnki.1003-8728.2017.1105
Zhong Gongxiang, Wang Jin, Jiang Xiaobo. Numerical Simulation and Structure Optimization of A Down-hole Throttling Valve of Constant Pressure for Gas Well[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(11): 1666-1673. doi: 10.13433/j.cnki.1003-8728.2017.1105
Citation: Zhong Gongxiang, Wang Jin, Jiang Xiaobo. Numerical Simulation and Structure Optimization of A Down-hole Throttling Valve of Constant Pressure for Gas Well[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(11): 1666-1673. doi: 10.13433/j.cnki.1003-8728.2017.1105

天然气井井下定压节流阀数值模拟及结构优化

doi: 10.13433/j.cnki.1003-8728.2017.1105
基金项目: 

省部共建“石油天然气装备”教育部重点实验室项目(2015sts03)资助

详细信息
    作者简介:

    钟功祥(1962-),教授,硕士,研究方向为石油机械工程领域的科研和教学工作,zhonggx3170@163.com

Numerical Simulation and Structure Optimization of A Down-hole Throttling Valve of Constant Pressure for Gas Well

  • 摘要: 针对目前节流阀存在无法根据需要自动改变节流嘴尺寸等问题,利用ANSYS对一种新型天然气井井下定压节流阀进数值模拟,该节流阀可以根据节流阀入口压力的变化调节节流阀的开度,以保证节流阀出口压力基本保持在设计压力值范围不变,分析了节流阀在正常工作压力范围内、不同开度时,节流阀节流过程中的压力、速度和温度变化,仿真结果和理论计算结果相符;通过节流阀在气固两相流时的冲蚀磨损情况分析,表明在节流阀阀芯锥面冲蚀磨损最为严重,最大冲蚀率为4.413×10-7 kg/(m2·s)。最后,基于前面分析结果对节流阀的阀芯和阀座进行结构优化,优化结果表明当节流阀阀座倾角β=10°时,阀芯冲蚀率最小;并对阀芯锥面进行氮化处理增强其耐磨性。
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出版历程
  • 收稿日期:  2016-06-21
  • 刊出日期:  2017-11-05

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