基于可压缩流体理论的常村煤矿瓦斯抽采系统优化
Optimization of Gas Extraction System Based on Compressible Fluid Theory in Changcun Coal Mine
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摘要: 针对常村煤矿瓦斯抽采系统负压大、流量偏低等问题，提出了可压缩流体理论的管路流阻计算新方法，基于此方法并将瓦斯抽采系统作为树状图网络开发了矿井瓦斯抽采网络解算系统。利用开发的网络解算系统优化矿井瓦斯抽采管路、查找抽采管路阻力损失严重问题。通过优化瓦斯抽采系统管网、抽采负压、管径等，降低了抽采系统负压损失、提升了抽采率。同时针对常村煤矿瓦斯抽采系统管路与瓦斯抽采泵的连接方式，给出4种优化方案，分别对其进行模拟结算与比较，结果表明：方案二全矿井抽采瓦斯纯量增加0.001 5 m3/s，提高率0.169 7%，方案四停地面低负压泵站，停泵以后全矿抽采混量减少1.312 6 m3/s，瓦斯抽采纯量减少0.052 0 m3/s。Abstract: For the problems of high negative pressure and low flow rate in Changcun Coal Mine gas drainage system, a new calculation method for pipe flow resistance of compressible fluid theory was proposed. Based on this method and take the gas drainage system as a tree map network, a mine gas drainage network solution system was developed. The developed network solution system is utilized to optimize the gas extraction pipelines in mines and serious problems are found in the resistance loss of the drainage pipelines. By optimizing the pipe network, suction negative pressure, pipe diameters of gas drainage system, the negative pressure loss of the drainage system was reduced, and the extraction rate was increased. At the same time, five optimization schemes were given for the connection method of the gas extraction pump system and gas pump in Changcun Coal Mine. Meanwhile, the simulated results and comparison were carried out respectively. The results showed that pure quantity of the drainage gas of the total mine was increased by 0.001 5 m3/s, with an increase rate of 0.169 7% in the scheme two. The fourth plan is to stop the low-negative-pressure pumping station on the ground. After stopping the pump, the total extraction volume of the mine was decreased by 1.312 6 m3/s, and the gas extraction volume was decreased by 0.052 0 m3/s.
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[1] 王玉武，富安，杨宏伟．采空区瓦斯抽放技术优选及适用性分析[J]．煤矿安全，2008，39（5）：77－80. [2] 董善保．综采工作面采空区瓦斯抽放技术[J]．矿业安全与环境，2005，32（5）：62－63. [3] 张铁岗．矿井瓦斯综合治理技术[Ｍ]．北京：煤炭工业出版社，2001. [4] 刘占宇．矿井瓦斯抽采管网运行优化方法研究[D]．北京：中国矿业大学（北京），2016. [5] 石智军，董书宁．澳大利亚煤层气开发现状[J]．煤炭科学技术，2008，36（5）：35－37. [6] 许亚优．赵庄煤矿瓦斯抽采系统优化研究[D]．阜新：辽宁工程技术大学，2014. [7] 刘晴．余吾煤矿瓦斯抽采管路系统优化[D]．焦作：河南理工大学，2011. [8] 白志鹏．可压缩流体的瓦斯抽采管路流阻计算方法研究[J]．煤，2016，25（4）：8－11. [9] 周西华，董强，徐丽娜，等．基于风网特征图的瓦斯抽采系统仿真优化研究[J]．煤炭科学技术，2016，44（11）：68－72．
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