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矿井通风网络是通风系统的重要组成部分,对其进行可靠性研究具有非常重要的意义。针对矿井通风网络系统的自身属性,结合网络流理论建立了通风网络可靠性评价模型。对各风路的风量进行动态实时监测,并运用统计学方法分析了风网中风流的变化趋势及风量分布规律,得到了通风系统中任一风路风量的分布密度函数,进而推导出各风路的可靠性指标值。运用简化的邻接终点矩阵法求解通风网络最小路集并基于MATLAB编程实现此算法。提出了一种简化的不交化最小路集算法:对于任一长度为m-1的最小路,只需在其中添加n-m+1条该最小路中不出现的分支的逆,就可直接获得不交化结果,其余最小路采用BDD算法进行不交化运算。通过以上方法可量化分析通风网络的可靠性。最后通过实例解算检验其可行性。
Mine ventilation network is an important part of the ventilation system, and its reliability research is of great significance. Aiming at the own property of mine ventilation network system, the reliability evaluation model of ventilation network is established based on network flow theory. The dynamic and real-time monitoring of the air volume of each airway is carried out. The trend of the air flow in the air network and the distribution of the air volume are analyzed by using statistical methods. The distribution density function of the air volume of either airway in the ventilation system is obtained, Road reliability index value. The simplified adjacency end-point matrix method is used to solve the minimum path set of ventilation network and the algorithm is implemented based on MATLAB programming. A simplified algorithm for the disjoint minimum path set is proposed: for any min-path of length m-1, only the n-m + 1 anti-branch of the smallest path can be added to it. Direct access to non-intersecting results, the rest of the smallest way using BDD algorithm does not intersect operator. The above method can quantify the reliability of the ventilation network. Finally, the feasibility of an example solution is tested.