IMECH-IR  > 流固耦合系统力学重点实验室
利用浮力富集乏风瓦斯的可行性研究
Alternative TitleStudy on feasibility of ventilation air methane accumulation in coal mine by buoyant force
王世贤; 乔继延; 陈力; 穆春明; 邢天亮; 丁雁生
Source Publication中国煤炭
2012-06-22
Volume38Issue:6Pages:104-106+111
ISSN1006-530X
Abstract对于开采低渗透难抽采煤层的高瓦斯矿井,因抽采浓度低而难以利用,现场有利用浮力富集乏风中瓦斯的设想,本文研究其可行性。现场试验表明,瓦斯浓度沿着高度方向差别很小,不存在实际意义上的富集。理论分析认为,离析态的瓦斯在浮力作用下可能产生积聚,但积聚不是瓦斯富集而是稀释;气体自发的扩散和通风,使风流中的瓦斯由离析态迅速转变为非离析态,非离析态瓦斯在重力场中的分离程度可以忽略不计。
Other AbstractDue to low suction concentration,it is difficult to utilize the methane in coal mine with low permeability and high methane concentration.An idea of methane accumulation by buoyant force was planned to be applied to the coal mine,so its feasibility was discussed in this paper.It was proved that the methane was difficult to enrich because of little difference in methane concentration in the vertical direction.Theoretically,segregated methane possibly accumulated by buoyant force,however,it was not methane en...
Keyword瓦斯 乏风瓦斯 浮力富集 瓦斯富集 扩散 通风 离析态 非离析态
Subject Area环境流体力学
URL查看原文
Language中文
DepartmentLMFS工程地质体力学(LEM)
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46480
Collection流固耦合系统力学重点实验室
Corresponding Author王世贤
Recommended Citation
GB/T 7714
王世贤,乔继延,陈力,等. 利用浮力富集乏风瓦斯的可行性研究[J]. 中国煤炭,2012,38(6):104-106+111.
APA 王世贤,乔继延,陈力,穆春明,邢天亮,&丁雁生.(2012).利用浮力富集乏风瓦斯的可行性研究.中国煤炭,38(6),104-106+111.
MLA 王世贤,et al."利用浮力富集乏风瓦斯的可行性研究".中国煤炭 38.6(2012):104-106+111.
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