长距离集输立管中严重段塞流频率特性研究  

Study on Severe Slugging Frequency Characteristics in a Long Pipeline-Riser System

作　　者：常英杰 赵向远 吴全红 刘威志[1] 黄博 徐强[1] 郭烈锦[1] CHANG Ying-Jie;ZHAO Xiang-Yuan;WU Quan-Hong;LIU Wei-Zhi;HUANG Bo;XU Qiang;GUO Lie-Jin(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2022年第1期98-103,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51888103,No.52076175)。

摘　　要：实验研究了1 MPa压力下长距离集输立管中严重段塞流特性,基于立管压差信号的功率谱密度(PSD)函数,研究了严重段塞流频率随气液流量、立管顶部节流的变化规律。实验结果表明,严重段塞流频率随气液流速的增大而增大,但随液相流速增大的幅度更大;将严重段塞流节流至稳态的过程中,在极小气液流速的SS1区域范围内,节流会使得严重段塞流频率增大;而在较大气液流速下的SS1和SS2范围内,节流的过程中严重段塞流的频率几乎不变。The characteristics of severe slugging flow was investigated experimentally in a long pipeline-riser under the pressure of 1 MPa.Based on the power spectral density(PSD)function of the pressure difference signal of the riser,the variation of the severe slugging frequency with the air-water flow rate and top-choking was analysed.The experimental results show that the frequency of severe slugging flow increases with the increase of gas and liquid flow rate,but the increased amplitude is greater for liquid.In the process of throttling severe slugging flow to steady-state,the frequency of severe slugging is increased when throttling at the area of SS1 where the flow rate is extremely low,while almost unchanged in the area of SS1 and SS2 where a larger gas and liquid flow rate.

关 键 词：集输立管系统 严重段塞流频率 节流 PSD 

分 类 号：O359[理学—流体力学]