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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 characteristic of the diagonal ventilation network, the definition and solution method of the equivalent transformation of the ventilation network are proposed, and the superposition rule of the wind pressure source effect is deduced. The triangle-star equivalent transformation formula is deduced. Network and the parameters of network ventilation before and after the equivalent transformation are solved by network and the equivalent transformation accuracy is analyzed.The concept of angular wind resistance is analyzed systematically and the concept of the optimal wind resistance of the branch is proposed.The results show that the total wind resistance As the wind resistance branch increases, there is a decreasing interval and an increasing interval in turn.