摘要
利用等容变压装置WT-1在实验室测试多组煤样的瓦斯放散速度和放散量,结合煤的瓦斯放散数学模型,得出不同煤样的瓦斯放散特征。结果表明:△p指标会出现漏报的可能。利用最小二乘法拟合了不同瓦斯放散过程数学式,结果显示文特式更适合作为1 min内放散速度公式,而且放散量越大,与文特式相关性越高。
By testing the gas diffusion velocity and volume of several coal samples using WT-1 constant volume and pressure swing device, combined with the mathematical model of coal gas emission, the characteristics of gas emission were obtained. The experimental results showed that the △p index would fail to declare. By using the least squares method to fit the different mathematical formula for gas emission, the results show that Venter type is more suitable for formula of diffusion velocity within 1 min, and the greater the diffusion volume, the higher the relativity with Venter type.
作者
黄再娟
章晓岚
赵欣
HUANG Zaijuan1,2, ZHANG Xiaolan1,2, ZHAO Xin3(1.State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization, China Pingmei Shenma Group, Pingdingshan 467000, China;2.Institute of Energy ＆ Chemical Industry, China Pingmei Shenma Group, Pingdingshan 467000, China; 3.China Coal Technology and Engineering Group Shenyang Research Institute, Fushun 113122, Chin)
出处
《煤矿安全》
CAS
北大核心
2018年第3期13-16,共4页
Safety in Coal Mines
基金
国家科技重大专项资助项目(2016ZX05045-004-001)
关键词
瓦斯放散速度
放散量
等容变压
数学模型
函数拟合
gas diffusion velocity
diffusion volume
constant volume and pressure swing
mathematical model
function fitting
