Numerical simulation of oil vapor leakage and diffusion superposition effect of internal floating-roof tank group and experimental investigation on wind-tunnel

Weiqiu HUANG; Jie FANG; Cheng LYU; Aihua LYU; Xianhang SUN

doi:10.11949/0438-1157.20190338

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Numerical simulation of oil vapor leakage and diffusion superposition effect of internal floating-roof tank group and experimental investigation on wind-tunnel

Process safety | 更新时间：2020-06-24

- Numerical simulation of oil vapor leakage and diffusion superposition effect of internal floating-roof tank group and experimental investigation on wind-tunnel
- CIESC Journal Vol. 70, Issue 11, Pages: 4504-4516(2019)
- 作者机构：
  
  常州大学江苏省油气储运技术重点实验室，江苏常州 213164
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190338
  CLC： X 51;TE 85;TE 99
- Received：02 April 2019，
  
  Revised：2019-07-03，
  
  Published：05 November 2019
- 稿件说明：
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黄维秋, 方洁, 吕成, 吕爱华, 孙宪航. 内浮顶罐组油气泄漏扩散叠加效应的数值模拟与风洞实验研究[J]. 化工学报, 2019, 70(11): 4504-4516

HUANG Weiqiu, FANG Jie, LYU Cheng, LYU Aihua, SUN Xianhang. Numerical simulation of oil vapor leakage and diffusion superposition effect of internal floating-roof tank group and experimental investigation on wind-tunnel[J]. CIESC Journal, 2019, 70(11): 4504-4516
黄维秋, 方洁, 吕成, 吕爱华, 孙宪航. 内浮顶罐组油气泄漏扩散叠加效应的数值模拟与风洞实验研究[J]. 化工学报, 2019, 70(11): 4504-4516 DOI： 10.11949/0438-1157.20190338.

HUANG Weiqiu, FANG Jie, LYU Cheng, LYU Aihua, SUN Xianhang. Numerical simulation of oil vapor leakage and diffusion superposition effect of internal floating-roof tank group and experimental investigation on wind-tunnel[J]. CIESC Journal, 2019, 70(11): 4504-4516 DOI： 10.11949/0438-1157.20190338.

摘要

内浮顶罐的油气泄漏会给油罐区的安全和环境带来潜在的危害。基于CFD及其Realizable

k-ε

湍流模型，建立了内浮顶罐的风场和油气浓度场数值模拟方法，并通过风洞实验验证其可行性。之后，重点讨论单罐、双罐、四罐情况下的流场与浓度场分布。结果显示：紧贴浮盘边圈缝隙泄漏上方的油气浓度最高，容易产生火灾等危险；罐组之间存在相互影响作用，由于前方罐的阻挡作用，后方的罐内风速较小，容易产生油气叠加，导致油气浓度高于前方罐，更容易达到爆炸极限。无论从安全、环保还是人员健康方面，都应采取相应措施及时监控。

Abstract

Oil vapor leakage from the internal floating-roof tank will bring potential hazards to the safety and environment of the oil depot. Based on CFD and its Realizable

k-ε

turbulence model

the numerical simulation method of the wind field and the oil vapor concentration field of the internal floating-roof tank was established

and its feasibility was verified by the wind tunnel experiments. After that

focus on the flow field and concentration field distribution in the case of single tank

double tank and four tank. The results show that the greatest concentration of the oil vapor is found near the rim gap of the floating deck

which will be prone to fire and other dangers. There is interaction between tank groups. Because of the blocking effect of the front tank

the wind speed in the rear tank is smaller

which is easy to produce the oil vapor superposition

resulting in the concentration of the oil vapor in the rear tank is higher than that in the front tank

so it is easier to reach the explosion limit. Whether in terms of safety

environmental protection or personnel health

appropriate measures should be taken to timely monitor and control.

关键词

Keywords

references

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