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[1]亓佳宁 　樊迪 　张明思 　宋尚飞 　张久达　史博会　宫敬.气液混输管道组分跟踪及相变量预测 [J].油气储运,2023,42(02):1-8.
　QI Jianing,FAN Di,ZHANG Mingsi,et al.Component tracking and phase variation prediction of gas-liquid mixedtransportation pipeline [J].Oil & Gas Storage and Transportation,2023,42(02):1-8.
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气液混输管道组分跟踪及相变量预测

 

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 42 期数: 2023年02期 页码: 1-8 栏目: 出版日期: 2023-02-25
Title:
Component tracking and phase variation prediction of gas-liquid mixed
transportation pipeline

 

作者:
亓佳宁 　樊迪 　张明思 　宋尚飞 　张久达　史博会　宫敬

 

Author(s):

 

关键词:

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Keywords:

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分类号:
TE832
文献标志码:
A
摘要:
气液混输过程中存在相间能量消耗、相间传质等现象，从而影响管内介质的流动状态和管道运行参数，气
液相的组成也会不断变化。利用 LedaFlow 软件对某实际气液混输管道进行稳态模拟，对比分析物性表模型和组
分跟踪模型得到的沿线参数模拟结果以验证组分跟踪法的可靠性，进而开展管道瞬态模拟，分析流体组成的变化
规律并预测气液两相相变量。结果表明：该管道内流体沿程液化，气相摩尔流量下降，其瞬态流动过程为一个气
相不断液化的过程；在稳态模拟中采用 LedaFlow 相平衡计算方式，即按照各相的流量占比应与静止状态下的气
液相分布相同的原则，可更为准确地确定流动过程中的相变量。研究成果可为气液混输管道中相变规律预测提
供理论基础，提升气液混输管道流动安全评价的准确性。（图 12，表 2，参 24）

 

Abstract:
There are phenomena such as interphase energy consumption and interphase mass transfer in the process of gas-liquid mixed
transportation, which can affect the flow state of medium and the operating parameters of pipelines. Meanwhile, the composition of gas and
liquid is also varying continuously. Thus, LedaFlow software was used to conduct the steady-state simulation of a real gas-liquid mixed
transportation pipeline. Then, the simulation results of pipeline parameters obtained by the physical property model and component tracking
model were analyzed comparatively to verify the reliability of component tracking method. On this basis, transient simulation was performed
for the pipeline to analyze the variation rule of liquid composition and to predict the phase variation of gas and liquid. According to the
results, the fluid in the pipeline is liquefied and the molar flow of gas decreases along the line. Therefore, the transient flow in the pipeline is a
process of continuous liquefaction of gas. In the steady-state simulation, the LedaFlow phase equilibrium calculation method could be adopted to
accurately determine the phase variation during flowing on principle that the flow proportion of various phases should be same as the distribution
of gas and liquid under the condition of rest. Generally, the research results could provide theoretical basis for the prediction of phase variation
rule and improve the accuracy of flow safety evaluation of gas-liquid mixed transportation pipeline. (12 Figures, 2 Tables, 24 References)

 

更新日期/Last Update: 2022-12-29