应用四种类型风道法解算矿井通风网络

本文把通风系统中的风道风量和通风控制器风压作为2B个变量,再把它们分为B个未知变量和B个已知变量,构成B个方程中含有B个未知量的通风网络问题.根据网络中各风道的变量是已知的或未知的,把风道划分为四种类型进行分析解算.只要网络中的雅可比矩阵满足本文所论述的三个条件,便可得出网络问题的唯一解.此外,还应用牛顿法对普遍性的矿井通风网络进行了解算,收到了计算快速、精确的效果。

Using the Method of Four-Type Branches to Solve Mine Ventilation Networks

The air quantities and control-device pressures in a ventilation system are selected as 2B variables and are dcvided into B unknown variables and B known variablcs,constiluting a ventilation network problems of B equations in B unknowns.Ac- cording to whether the variables of each branch in the network are known or unknown,the network branches are grouped into four types for analyses.So long as the Jocabian matrix of the equations satisfies three conditions presented in this paper,a unique network solu- tion can be obtained.Furthcrmorc,Newton method is used to solve general mine ventila- tion networks,and the quick and precise results are obtainable.