基于回路风量法的复杂矿井通风网络解算算法

随着矿井通风系统变得越来越复杂,传统的解算方法已经难以满足风网解算的要求,寻找一种能够快速解算复杂风网的算法具有重要意义。对回路风量法的解算原理进行了系统深入的研究,分析了现有通风网络解算算法的局限性,提出了一种改进的Scott-Hinsley法。该算法具有收敛速度快、能解决含有单向回路复杂矿井通风网络解算问题;采用了无初值的回路风量法,便于快速地进行二次解算;运用BFS法改进了生成树的结构,并用双通路法快速圈划回路;实现了固定半割集下的通风网络按需分风,可自动按需分配风量;分析了单向回路造成回路风量法解算失败的原因,并通过修改搜索策略解决了含有单向回路的通风网络解算问题。

Algorithm of complex ventilation network solution based on circuit air-quantity method

With the mine ventilation system becoming more and more complex,the traditional calculation methods have difficulty in meeting the requirements of network solution.It’s of significance to develop a quick algorithm for calculating complex wind network.The theory of network solution of circuit air-quantity method was systematically and thoroughly studied.Also,the limitation of the existing ventilation network solution was analyzed.An improved network solution based on Scott-Hinsley method was put forward.With a high convergence rate,this algorithm can solve the problems of ventilation network including unidirectional circuit and the network solution problems of complex ventilation system.BFS method was used to improve the structure of the spanning tree,and the divided circuit was faster by using Double-Access method.Achieving the fixed half cut set of air distribution in ventilation network,the algorithm can automatically distribute air according to demands.The failure cause of circuit air-quantity network solution with the unidirectional circuits was analyzed.The algorithm proposed can solve the problems of ventilation network including unidirectional circuit by modifying its search strategy.