工业规模CO<sub>2</sub>管道不同相态及泄漏方向下扩散规律研究

杨小光; 于帅; 闫兴清; 桥帆帆; 刘镇溪; 安佳然; 赵坤; 喻健良

doi:10.11949/0438-1157.20260831

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工业规模CO₂管道不同相态及泄漏方向下扩散规律研究

过程安全 | 更新时间：2026-07-13

- 工业规模CO₂管道不同相态及泄漏方向下扩散规律研究
- Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline
- 化工学报 2026年
- 作者机构：
  
  大连理工大学化工学院，辽宁大连 116024
- 作者简介：
  
  杨小光（2002—），男，硕士研究生，15225701815@163.com
  喻健良（1963—），男，博士，教授，yujianliang@dlut.edu.cn
- 基金信息：
- DOI：10.11949/0438-1157.20260831
  中图分类号： X937
- 收稿：2026-06-15，
  
  修回：2026-07-12，
  
  录用：2026-07-13，
- 稿件说明：
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杨小光, 于帅, 闫兴清, 等. 工业规模CO₂管道不同相态及泄漏方向下扩散规律研究[J/OL]. 化工学报, 2026. DOI: 10.11949/0438-1157.20260831.

YANG Xiaoguang, YU Shuai, YAN Xingqing, et al. Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline[J/OL]. CIESC Journal, 2026. DOI: 10.11949/0438-1157.20260831.
杨小光, 于帅, 闫兴清, 等. 工业规模CO₂管道不同相态及泄漏方向下扩散规律研究[J/OL]. 化工学报, 2026. DOI: 10.11949/0438-1157.20260831. DOI：

YANG Xiaoguang, YU Shuai, YAN Xingqing, et al. Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline[J/OL]. CIESC Journal, 2026. DOI: 10.11949/0438-1157.20260831. DOI：

摘要

基于相态及泄漏方向开展了气相CO

水平泄漏和含杂质密相CO

竖直放空泄漏的2组工业规模（主管道长256 m，内径233 mm）CO

管道实验，研究了CO

管道泄漏过程中扩散形貌及浓度变化规律。研究结果表明：泄漏初期，气相CO

可见云膨胀速率呈先升高后降低，随后再升高变化趋势；密相CO

可见云膨胀速率呈逐渐降低变化趋势；密相CO

可见云相较气相，形态更显著、扩散范围更广。随泄漏过程推进，CO

重气效应显著区域逐步向泄漏口收缩。放空泄漏初期，远场CO

浓度波动幅度较大，泄漏口近场浓度基本无明显波动；全程来看，近场平均浓度高于远场。依据CO

和CO职业接触限值，量化了2组实验下的浓度风险范围；

Abstract

Two sets of industrial scale CO

pipeline experiments were conducted

including horizontal leakage of gaseous CO

and vertical venting leakage of impurity-containing dense-phase CO

. The test pipeline had a total length of 256 m and an inner diameter of 233 mm. The evolution of diffusion morphology and concentration distribution during CO

leakage were investigated with respect to phase state and leakage direction. The results show that the expansion rate of the visible cloud of gaseous CO

first increases

then decreases

and rises again in the early leakage stage

while that of dense-phase CO

gradually declines. Compared with gaseous CO

dense-phase CO

presents more distinct cloud morphology and a wider diffusion range. As the leakage proceeds

the region dominated by the heavy gas effect of CO

gradually shrinks toward the leakage outlet. At the initial stage of venting leakage

concentration fluctuates drastically in the far field

whereas no obvious fluctuation is observed in the near field. Overall

the average concentration in the near field is higher than that in the far field. Furthermore

the concentration hazard zones for the two experiments were quantified according to the occupational exposure limits of CO

and CO.

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工业规模CO2管道不同相态及泄漏方向下扩散规律研究

Effects of phase state and leakage direction on diffusion characteristics of CO2 released from industrial-scale pipeline

DOI：10.11949/0438-1157.20260831

摘要

Abstract

关键词

Keywords

references

工业规模CO₂管道不同相态及泄漏方向下扩散规律研究

Effects of phase state and leakage direction on diffusion characteristics of CO₂ released from industrial-scale pipeline