基于Fluent的地下管廊液氮灭火数值模拟方法*

doi:10.16265/j.cnki.issn1003-3033.2022.08.1891

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (8): 133-139.doi: 10.16265/j.cnki.issn1003-3033.2022.08.1891

基于Fluent的地下管廊液氮灭火数值模拟方法*

张志伟¹(), 张国维¹^,², 朱国庆¹, 袁狄平³, 郭栋¹

¹ 中国矿业大学公共安全与消防研究所,江苏徐州 221116
² 中国矿业大学深圳研究院, 广东深圳 518000
³ 深圳市城市公共安全技术研究院,广东深圳 518000

收稿日期:2022-02-23 修回日期:2022-05-26 出版日期:2022-09-05 发布日期:2023-02-28
作者简介:
张志伟 (1997—),男,浙江台州人,硕士研究生,研究方向为城市地下空间火灾防护。E-mail: zwzcumt@cmut.edu.cn。
张国维,教授。
朱国庆,教授。
袁狄平,教授。
基金资助:
山东省重大科技创新工程项目(2021CXGC011303); 国网河北省电力有限公司科技项目(kj2020-041)

Numerical simulation method of liquid nitrogen fire extinguishing in underground pipe gallery based on Fluent

ZHANG Zhiwei¹(), ZHANG Guowei¹^,², ZHU Guoqing¹, YUAN Diping³, GUO Dong¹

¹ Institute of Public Safety and Fire Engineering, China University of Mining and Technology,Xuzhou Jiangsu 221116, China
² Shenzhen Institute of Safety, China University of Mining and Technology, Shenzhen Guangdong 518000, China
³ Shenzhen Research Institute of Urban Public Safety Technology, Shenzhen Guangdong 518000, China

Received:2022-02-23 Revised:2022-05-26 Online:2022-09-05 Published:2023-02-28

摘要/Abstract

摘要：

为更好地研究液氮的灭火特性,提出基于Fluent软件的地下管廊液氮灭火数值模仿方法,并研究其适用性。首先,搭建缩尺寸地下管廊液氮灭火试验平台,通过改变注氮方向和注氮距离,开展地下管廊液氮灭火试验,以便得到数值模拟所需的输入参数和验证数据;然后,确定基于Fluent软件的数值模拟方法,用该方法开展与试验同工况的数值模拟,并对比二者结果。研究表明:该数值模拟结果与试验数据有较好的一致性;管廊顶棚不同位置处温度的变化趋势与试验一致,误差最低约为4.7%;管廊底部 O₂ 体积分数的模拟效果与注氮距离有关,注氮距离越近,模拟效果越好,误差最低为0.3%,最高为15.3%。

关键词: 地下管廊, 液氮, 灭火试验, 数值模拟, Fluent软件

Abstract:

In order to better study the fire extinguishing characteristics of liquid nitrogen, a numerical simulation method of liquid nitrogen fire extinguishing in underground pipe gallery based on Fluent software was proposed and its applicability was studied. First of all, a scaled test platform for liquid nitrogen fire extinguishing of underground pipe gallery was built, and the liquid nitrogen fire extinguishing test was carried out by changing the direction and distance of the nitrogen injection, so as to obtain the input parameters and verification data required for the numerical simulation. Then, the numerical simulation method based on Fluent software was determined, and the corresponding numerical simulation was carried out, and the results were compared. The research results show that the numerical simulation results are in good agreement with the test data. And the variation trend of temperature at different positions of the pipe gallery roof is consistent with the test, and the minimum error is about 4.7%. The simulation effect of the O₂ volume fraction at the bottom of the pipe gallery is related to the nitrogen injection distance, the closer the nitrogen injection distance is, the better the simulation effect is. The minimum error is 0.3%,and the maximum error is 15.3%。

Key words: underground pipe gallery, liquid nitrogen, fire extinguishing test, numerical simulation, Fluent software

张志伟, 张国维, 朱国庆, 袁狄平, 郭栋. 基于Fluent的地下管廊液氮灭火数值模拟方法*[J]. 中国安全科学学报, 2022, 32(8): 133-139.

ZHANG Zhiwei, ZHANG Guowei, ZHU Guoqing, YUAN Diping, GUO Dong. Numerical simulation method of liquid nitrogen fire extinguishing in underground pipe gallery based on Fluent[J]. China Safety Science Journal, 2022, 32(8): 133-139.

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参考文献 16

[1]	MARKE P. Cable tunnels an integrated fire detection suppression system for rapid extinguishment[J]. Fire Technology, 1991, 27(3): 219-233. doi: 10.1007/BF01038448
[2]	高云升, 刘连喜, 廖荣华, 等. 干粉灭火装置在综合管廊内应用分析[J]. 消防科学与技术, 2018, 37(12): 1682-1684.
	GAO Yunsheng, LIU Lianxi, LIAO Ronghua, et al. Application analysis of dry powder fire extinguishing equipment used in utility tunnel[J]. Fire Science and Technology, 2018, 37(12): 1682-1684.
[3]	孙瑞雪, 姚斌. 细水雾在城市地下综合管廊内灭火特性的数值模拟研究[J]. 火灾科学, 2019, 28(1): 28-34.
	SUN Ruixue, YAO Bin. Numerical simulation on extinguishing effect of water mist system in urban underground utility tunnel[J]. Fire Safety Science, 2019, 28(1): 28-34.
[4]	刘秀云, 吴超, 陈玉琼. 细水雾灭火影响因素研究进展[J]. 消防科学与技术, 2010, 29(4): 269-272.
	LIU Xiuyun, WU Chao, CHEN Yuqiong. Progress in the research of factors affecting the extinguishing property of water mist[J]. Fire Science and Technology, 2010, 29(4): 269-272.
[5]	MORRIS R. A review of experiences on the use of inert gases in mine fires[J]. Mining Science and Technology, 1987, 6(1): 37-69. doi: 10.1016/S0167-9031(87)90491-9
[6]	董伟, 王学兵, 史波波, 等. 开区注液氮防灭火技术在羊场湾煤矿的研究与应用[J]. 煤炭工程, 2011(12): 47-49.
	DONG Wei, WANG Xuebing, SHI Bobo, et al. Research and application of fire prevention and control technology of liquid nitrogen injection in open area in Yangchangwan mine[J]. Coal Engineering, 2011(12): 47-49.
[7]	梁树平, 周西华, 张宏伟, 等. 液氮降温防灭火试验研究[J]. 辽宁工程技术大学学报:自然科学版, 2010, 29(6): 1042-1045.
	LIANG Shuping, ZHOU Xihua, ZHANG Hongwei, et al. Study on coal mine fire prevention & extinguishing test with liquid nitrogen[J]. Journal of Liaoning Technical University:Natural Science, 2010, 29(6): 1042-1045.
[8]	GUO Dong, ZHANG Guowei, ZHU Guoqing, et al. Applicability of liquid nitrogen fire extinguishing in urban underground utility tunnel[J]. Case Studies in Thermal Engineering, 2020:DOI:10.1016/j. csite.2020.100657.
[9]	李华祥, 张国维, 贾伯岩, 等. 城市地下综合管廊液氮灭火特性试验研究[J]. 中国安全科学学报, 2020, 30(8): 143-150. doi: 10.16265/j.cnki.issn1003-3033.2020.08.021
	LI Huaxiang, ZHANG Guowei, JIA Boyan, et al. Research on extinguishing characteristics of liquid nitrogen in urban underground utility tunnel[J]. China Safety Science Journal, 2020, 30(8): 143-150. doi: 10.16265/j.cnki.issn1003-3033.2020.08.021
[10]	JI Huaijun, LI Yunzhuo, SU Hetao, et al. Experimental investigation on the cooling and inerting effects of liquid nitrogen injected into a confined space[J]. Symmetry, 2019: DOI:10.3390/sym11040579.
[11]	ADIGA K C, HATCHER R F, SHEINSON R S, et al. A computational and experimental study of ultra fine water mist as a total flooding agent[J]. Fire Safety Journal, 2007, 42(2):150-160. doi: 10.1016/j.firesaf.2006.08.010
[12]	GAO Dongli, LI Tao, MEI Xiujuan, et al. Effectiveness of smoke confinement of air curtain in tunnel fire[J]. Fire Technology, 2020, 56(2): 2283-2314. doi: 10.1007/s10694-020-00977-z
[13]	XUE H, HO J C, CHENG Y M. Comparison of different combustion models in enclosure fire simulation[J]. Fire Safety Journal, 2001, 36(1):37-54. doi: 10.1016/S0379-7112(00)00043-6
[14]	VEGA M G, DIAZ K M A, ORO J M F, et al. Numerical 3D simulation of a longitudinal ventilation system: memorial tunnel case[J]. Tunnelling and Underground Space Technology, 2008, 23(5):539-551. doi: 10.1016/j.tust.2007.10.001
[15]	黄鑫. 气泡雾化细水雾灭火有效性模拟研究[D]. 合肥: 中国科学技术大学, 2007.
	HUANG Xin. Study on the fire extinguishing efficiency of water mist produced by effervescent atomizer[D]. Hefei: University of Science and Technology of China, 2007.
[16]	史波波. 地下空间液氮防灭火理论与工程实践[M]. 徐州: 中国矿业大学出版社有限责任公司, 2018: 59-62.

工况编号	注氮方向	d/m
T₁	竖直向下	0.5
T₂	竖直向下	2.0
T₃	水平	0.5
T₄	水平	2.0

基于Fluent的地下管廊液氮灭火数值模拟方法*

Numerical simulation method of liquid nitrogen fire extinguishing in underground pipe gallery based on Fluent

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