原子能科学技术 ›› 2020, Vol. 54 ›› Issue (10): 1787-1794.DOI: 10.7538/yzk.2019.youxian.0756

• 反应堆工程 • 上一篇    下一篇

起伏非线性振动下倾斜上升管内气液两相流流型转变分析

周云龙;汪俊超;刘起超   

  1. 东北电力大学 能源与动力工程学院,吉林省 吉林市132012
  • 出版日期:2020-10-20 发布日期:2020-10-20

Analysis of Gas-liquid Two-phase Flow Pattern Transition in Inclined Rising Pipe under Fluctuant Nonlinear Vibration Condition

ZHOU Yunlong;WANG Junchao;LIU Qichao   

  1. School of Energy and Power Engineering, Northeast Electric Power University, Jilin 132012, China
  • Online:2020-10-20 Published:2020-10-20

摘要:

本文对不同起伏非线性振动条件下倾斜上升管内气液两相流流型及转变规律进行实验研究,借助高速摄影仪对起伏非线性振动状态下气液两相流的流型进行分类。结果表明,倾斜上升管气液两相流有弥散泡状流、起伏弹状流、准弹状流和液环式环状流4种。对弥散泡状流向起伏弹状流和准弹状流向液环式环状流的转变机理进行分析,在稳定状态转变机理的基础上引入振动参数,建立了考虑振动加速度的关系式。本文建立的流型转变关系式与实验结果吻合较好。

关键词: 气液两相流, 起伏非线性振动, 倾斜上升管, 流型

Abstract:

The flow pattern and transition law of gas-liquid two-phase flow in inclined rising pipe under different fluctuant nonlinear vibration conditions were studied experimentally. The flow patterns of gas-liquid two-phase flow under fluctuant nonlinear vibration condition were identified by using high-speed camera. The results show that there are four kinds of patterns in inclined rising pipe with diffuse bubble flow, fluctuant slug flow, proto slug flow and liquid-ring annular flow. The mechanisms of the transition from diffuse bubble flow to fluctuant slug flow, proto slug flow to liquid-ring annular flow were derived, the vibration parameter was added on the basis of the steady state transition mechanism and the flow pattern transition formulae considering the vibration acceleration were established. The results show that the flow pattern transition formulae established in this paper agree well with the experimental results.

Key words: gas-liquid two-phase flow, fluctuant nonlinear vibration, inclined rising pipe, flow pattern