通风网路回路圈划方法探讨

A preliminary research in the looping-in method of ventilation network circuits

通过对回路风量法解算矿井风网的原理及数学模型的分析,提出了独立回路间相互交换的方法。经数学推导,证明了牛顿法和拟线性法解算矿井风网的收敛速度与回路的圈划间没有任何直接的关系,因此认为采用这两种方法解算矿井风网时,用传统的“最小生成树” 法圈划回路是一种繁琐的不可取的方法。最后提出了圈划回路的简便方法,该方法简化了风网解算程序,而且有助于缩短计算机的运行时间。

Based on the analyses of principle and mathematical model of the circuit air-quantity method used for solving mine ventilation metwork, this paper puts forward an independent circuits interchange method. Through mathematic derivation, it is shown that when Newtonian method and imitative linear method are used for solving mine ventilation network the convergence rate is no direct relationship with looping-in circuit, and thus using traditional minimum spanning tree to mine ventilation network solution may be an tedious method and having nothing to recommend it. A new method of looping-in circuit is represented in the paper, and the method has such advantages as simply to the computer program of solving ventilation network and a great help to shorten the computer run duration.