基于风量反演风阻的节点压能解析方法

为解决通风网络中部分巷道会无法完成通风阻力测定或测定结果不准的问题，引入节点压能解析计算方法，对已知压能的节点个数进行判别分析，给出已知节点压能个数判别式，实现在通风网络中利用两组实测风量数据与部分节点压能数据，反演所需未知巷道风阻值，进而得到较准确的巷道通风阻力值。由于测量风量比测定风阻容易得多，而且各矿井为保证安全生产均有大量风量数据，因此利用风量反演风阻可以避免实际阻力测定的繁重工作。通过实例分析，说明只要利用不同条件下通过相同巷道的两组风量数据及部分节点压能，就可以准确计算出待求巷道风阻。

Study of node pressure energy analytical method based on inversion from air volume to wind resistance

In order to solve the problem that there are some roadways in which the ventilation resistance measurement cannot be conducted，this paper introduced an analytical calculation method based on node pressure energy.Also，the discriminant about the number of nodes，whose pressure energy are known，was given，which achieved the inversion from two groups of measured air volume to wind resistance based on node pressure energy in the ventilation network.Since the measurement of air volume is much easier than the determination of wind resistance，to ensure safety in production，each mine has a large amount of air volume data，therefore，it avoids the heavy work in resistance measurement.The case study shows that the unknown wind resistance can be obtained as long as two groups of air volume data and some node pressure energy data are available.