角联通风网络风阻特性  

Characteristic of diagonal ventilation network resistance

作　　者：彭云[1] 赵伏军[2] 童阳春[1] 周勇[1] 

机构地区：[1]化工部长沙设计研究院,湖南长沙410116 [2]湖南科技大学能源与安全工程学院,湖南湘潭411201

出　　处：《辽宁工程技术大学学报（自然科学版）》2014年第6期778-781,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：湖南省自然科学基金资助项目(10JJ3007)

摘　　要：为了分析角联通风网络风阻特性.提出了通风网络等效变换定义及求解方法—风压源效应叠加准则,推导了三角形—星形等效变换公式,将角联网络等效变换成简单串并联网络,并对等效变换前后网络通风参数进行网络解算、分析了等效变换精度.系统分析了角联风阻特性,提出了角联分支最佳风阻概念,研究结果表明:角联网络总风阻随角联分支风阻增大依次存在一个递减区间和递增区间.In order to analyze the wind resistance relationship between diagonal branch and diagonal network, this paper proposed the notion of ventilation network equivalent conversion as well as the calculating method—superposition rule of wind pressure source effect, and derived triangle and star-like equivalent converting formula. Transforming the diagonal network equivalent conversion into simple series parallel network, this study conducted the network calculation on ventilation parameter of pre- and post-equivalent conversion, and analyzed the equivalent conversion precision. Through numeral calculation, this paper systematically analyzed characteristic of diagonal wind resistance and drew its relevant curve, and put forward the notion of optimum wind resistance for diagonal branch. The results of study show that total value of diagonal network wind resistance increases with the value of diagonal branch wind resistance successively existing a decreasing interval and a increasing interval. The optimum wind resistance for diagonal branch increases with edge branch wind resistance successively, existing an increasing interval and a decreasing interval.

关 键 词：角联网络 风阻特性 等效变换 风压源 最佳风阻 

分 类 号：TD725[矿业工程—矿井通风与安全]