松散煤体内液态二氧化碳相变换热试验研究

doi:10.16265/j.cnki.issn1003-3033.2020.06.015

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (6): 98-105.doi: 10.16265/j.cnki.issn1003-3033.2020.06.015

松散煤体内液态二氧化碳相变换热试验研究

于志金^1,2 讲师, 杨淞¹, 谷雨¹, 邓军^1,2 教授

1.西安科技大学安全科学与工程学院,陕西西安 710054;
2.西安科技大学矿业工程博士后科研流动站,陕西西安 710054

收稿日期:2020-03-16 修回日期:2020-05-09 出版日期:2020-06-28 发布日期:2021-01-28
作者简介:于志金(1989—),男,黑龙江双鸭山人,博士,讲师,硕士生导师,从事煤矿过程安全方面的研究。E-mail:yuzhijin0927@126.com。
基金资助:
国家自然科学基金青年基金资助(51804245);陕西省教育厅科研计划项目(18JK0515)

Experimental investigation on phase transition and heat transfer characteristics for liquid carbon dioxide in loose coal

YU Zhijin^1,2, YANG Song¹, GU Yu¹, DENG Jun^1,2

1. School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an Shaanxi, 710054, China;
2. Mining Engineering Post-Doctoral Research Station, Xi'an University of Science and Technology, Xi'an Shaanxi 710054, China

Received:2020-03-16 Revised:2020-05-09 Online:2020-06-28 Published:2021-01-28

摘要/Abstract

摘要： 为研究液态二氧化碳(LCO₂)在松散煤体内泄放过程的传热特征以及LCO₂压注参数对煤体温度场的影响,利用自制试验平台开展松散煤体内压注LCO₂过程试验,分析压注过程煤体温度的变化、压注控制参数对致冷范围的影响。结果表明:LCO₂压入松散煤体后瞬间发生相变,与煤体发生剧烈热量交换,并形成低于CO₂三相点温度(-56.6 ℃)的相变致冷区域;沿射流方向,相变致冷范围随压注时间增加呈对数增长;增大压注流量、泄放口径和入口压力,相变致冷范围分别呈指数、对数、线性函数增大。

关键词: 松散煤体, 液态二氧化碳(LCO₂), 传热特征, 压注参数, 致冷范围

Abstract: In order to investigate heat transfer characteristics of LCO₂ injected in loose coal and study influence of injection parameters on temperature field of coal, experiments on LCO₂ injection process were carried out by using self-made test platform. Then, temperature changes of coal and influence of injection parameters on refrigeration range were analyzed. The results show that when LCO₂ is injected into loose coal, phase transition occurs immediately, and an intensive heat transfer process starts and forms a phase-change cooling area (<-56.6 ℃) which sees a logarithm increase over injection time in direction of CO₂ jet. Meanwhile, the cooling area increases in a form of exponential, logarithm and linear function respectively along with increase of injection flow, caliber and pressure

Key words: loose coal, liquid carbon dioxide (LCO₂), heat transfer characteristic, injection parameter, cooling area

中图分类号:

X936

于志金, 杨淞, 谷雨, 邓军. 松散煤体内液态二氧化碳相变换热试验研究[J]. 中国安全科学学报, 2020, 30(6): 98-105.

YU Zhijin, YANG Song, GU Yu, DENG Jun. Experimental investigation on phase transition and heat transfer characteristics for liquid carbon dioxide in loose coal[J]. China Safety Science Journal, 2020, 30(6): 98-105.

参考文献

[1] 马砺, 王伟峰, 邓军, 等. CO₂对煤升温氧化燃烧特性的影响[J]. 煤炭学报, 2014, 39(增2): 397-404.
MA Li, WANG Weifeng, DENG Jun, et al. Effect of CO₂ on characteristics of oxidation combustion for coal[J]. Journal of China Coal Society. 2014, 39(S2): 397-404.
[2] 宋东平, 周西华, 李景阳,等. 液态CO₂相变制冷降温试验研究[J]. 中国安全科学学报, 2017, 27(8): 120-125.
SONG Dongping, ZHOU Xihua, LI Jingyang,et al. Experimental study on cooling by phase transition of liquid CO₂[J]. China Safety Science Journal, 2017,27(8): 120-125.
[3] LIU Wei, QIN Yuepeng, YANG Xiaobin, et al. Early extinguishment of spontaneous combustion of coal underground by using dry-ice's rapid sublimation: a case study of application[J]. Fuel, 2018, 217: 544-552.
[4] 刘赛, 刘福义, 王刚, 等. 矿井采空区CO₂防灭火技术发展展望[J]. 煤炭技术, 2014, 33(6): 7-9.
LIU Sai, LIU Fuyi, WANG Gang, et al. development outlook of mine fire control technology by using CO₂ in coal goaf[J]. Coal Technology, 2014, 33(6): 7-9.
[5] MARTYNOV S, Brown S, MAHGEREFTEH H, et al. Modelling three-phase releases of carbon dioxide from high-pressure pipelines[J]. Process Safety and Environmental Protection, 2014, 92(1): 36-46.
[6] LU M, CONNELL L. The transient behaviour of CO₂, flow with phase transition in injection wells during geological storage-application to a case study[J]. Journal of Petroleum Science and Engineering, 2014, 124(10): 7-18.
[7] 余陶, 卢平, 姚尚文, 等. 易自燃大采高工作面采空区注二氧化碳自燃区域分布规律研究[J]. 安全与环境学报, 2016, 16(1): 29-32.
YU Tao, LU Ping, YAO Shangwen, et al. Distribution regularity of the spontaneous combustion and carbon dioxide injection into the gob of the grand mining height panels[J]. Journal of Safety and Environment, 2016, 16(1): 29-32.
[8] 邵昊, 蒋曙光, 吴征艳, 等. 采空区注二氧化碳防灭火的数值模拟研究[J]. 采矿与安全工程学报, 2013, 30(1): 154-158.
SHAO Hao, JIANG Shuguang, WU Zhengyan et al. Numerical simulation on fire prevention by infusing carbon dioxide into goaf[J]. Journal of Mining and Safety Engineering, 2013, 30(1): 154-158.
[9] 曹磊. 大倾角煤层二氧化碳防灭火采空区流场分布规律模拟研究[D]. 成都:四川师范大学, 2015.
CAO Lei. Study on goaf flow field distribution of deeply inclined coal seams with carbon dioxide extinguishing by numerical simulation[D]. Chengdu: Sichuan Normal University, 2015.
[10] 王继仁, 张英, 郝朝瑜. 半“O”型冒落采空区注CO₂防灭火的数值模拟[J]. 中国安全科学学报, 2015, 25(7): 48-54.
WANG Jiren, ZHANG Ying, HAO Chaoyu. Numerical simulation of fire prevention in gob area with half O-ring risked falling by CO₂ injection[J]. China Safety Science Journal, 2015, 25(7): 48-54.
[11] 郝朝瑜, 黄戈, 王继仁, 等. 惰化降温耦合作用下的采空区低温CO₂注入流量与温度研究[J]. 火灾科学, 2016, 25(2): 107-113.
HAO Chaoyu, HUANG Ge, WANG Jiren, et al. Study on CO₂ injection effect on flow rate and temperature based on couping effect of inerting and cooling[J]. Fire Safety Science, 2016, 25(2): 107-113.
[12] 郝朝瑜, 王继仁, 黄戈, 等. 基于惰化降温耦合作用的采空区低温CO₂注入位置确定[J]. 中国安全生产科学技术, 2015, 11(9): 17-23.
HAO Chaoyu, WANG Jiren, HUANG Ge, et al. Study on inject position of low temperature CO₂ in gob based on coupling effect of inerting cooling[J]. Journal of Safety Science and Technology, 2015, 11(9): 17-23.
[13] BROWN S, MARTYNOV S, MAHGEREFTEH H, et al. Modelling the non-equilibrium two-phase flow during depressurisation of CO₂, pipelines[J]. International Journal of Greenhouse Gas Control, 2014, 30: 9-18.
[14] 喻健良, 郭晓璐, 闫兴清, 等. 工业规模CO₂管道泄放过程中的压力响应及相态变化[J]. 化工学报, 2015, 66(11): 4 327-4 334.
YU Jianliang, GUO Xiaolu, YAN Xingqing, et al. Pressure response and phase transition in process of CO₂ pipeline release in industrial scale[J]. CIESC Journal, 2015, 66(11): 4 327-4 334.
[15] WAREING C, FAIRWEATHER M, FALLE S, et al. Validation of a model of gas and dense phase CO₂, jet releases for carbon capture and storage application[J]. International Journal of Greenhouse Gas Control, 2014, 20(1): 254-271.
[16] 于博, 刘永忠, 杨勇, 等. 封存CO₂在泄漏通道中迁移及相变过程的模拟分析[J]. 高校化学工程学报, 2015, 29(3): 516-522.
YU Bo, LIU Yongzhong, YANG Yong, et al. Simulation of migration and phase transition of sealed CO₂ in a leaky pathway[J]. Journal of Chemical Engineering of Chinese Universities, 2015, 29(3): 516-522.
[17] 王国旗, 邓军, 张辛亥, 等. 综放采空区二氧化碳防灭火参数确定[J]. 辽宁工程技术大学学报:自然科学版, 2009, 28(2): 169-172.
WANG Guoqi, DENG Jun, ZHANG Xinhai, et al. Determination of parameters of injecting CO₂ to prevent spontaneous combustion in gob of fully mechanized top-coal caving workface by means of numerical modeling[J]. Journal of Liaoning Technical University: Natural Science, 2009, 28(2): 169-172.
[18] 葛亮, 邵毅敏, 蒋德献,等. 井下液态二氧化碳灭火装备的研究[J]. 中国安全科学学报, 2017, 27(6): 97-102.
GE Liang, SHAO Yimin, JIANG Dexian, et al. Research on liquid carbon dioxide fire extinguishing equipment for use in mine[J]. China Safety Science Journal, 2017, 27(6): 97-102.
[19] 王强, 冯志强, 王理想, 等. 裂隙岩体注浆扩散范围及注浆量数值模拟[J]. 煤炭学报, 2016, 41(10): 2 588-2 595.
WANG Qiang, FENG Zhiqiang, WANG Lixiang, et al. Numerical analysis of grouting radius and grout quantity in fractured rock mass[J]. Journal of China Coal Society, 2016, 41(10): 2 588-2 595.

松散煤体内液态二氧化碳相变换热试验研究

Experimental investigation on phase transition and heat transfer characteristics for liquid carbon dioxide in loose coal

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