陕西煤炭2026，Vol.45Issue(10)：30-37,8.DOI:10.20120/j.cnki.issn.1671-749x.2026.1005
深部采空区气液两相流体循环降温防灭火技术
Gas-liquid two-phase flow circulating cooling and fire prevention technology in deep goaf
马欣广 1张少龙 1李晨光 1李鹏 2张柏林 3曹泽琨3
作者信息
- 1. 国能神东煤炭地测公司,陕西 榆林 719315
- 2. 国能神东煤炭技术研究院,陕西 榆林 719315
- 3. 太原理工大学 安全与应急管理工程学院,山西 太原 030024
- 折叠
摘要
Abstract
To study the gas-liquid two-phase fluid circulation cooling and fire prevention system for deep goafs in coal mines,our research selected the deep goaf of Shenhua Shendong Shangwan Coal Mine as the research background.A random number array was used for the random assignment processing of thermal conductivity at each random point in the goaf,and COMSOL simulation software was applied for numerical calculation and analysis.After approximately 45 minutes of cooling treatment with low-temperature liquid fluid circulation,the temperature of the coal seam at the 15 meter height gradually decreased from 315 K(42℃)to about 270 K(-3.15℃).After the termination of low-temperature liquid fluid circulation,the coal seam temperature stabilized between 280 K and 290 K,which is equivalent to a temperature difference of 10℃to 20℃.The results show that under U-type ventilation conditions,the introduction of low-temperature fluid circulation effectively reduces the temperature of the goaf and alleviates heat accumulation.Compared with natural conditions(with a temperature recovery rate of approximately 0.5 K/h within 24 hours),this technology effectively inhibits the heat storage rebound of coal mass,verifying the long-term stability of the cooling effect.关键词
数值模拟/煤层降温/煤层防火/流体传热/热量转移Key words
numerical simulation/coal seam cooling/coal seam fire prevention/fluid heat transfer/heat transfer分类
矿业与冶金引用本文复制引用
马欣广,张少龙,李晨光,李鹏,张柏林,曹泽琨..深部采空区气液两相流体循环降温防灭火技术[J].陕西煤炭,2026,45(10):30-37,8.
