矿井通风系统灵敏度分析

Analysis sensitivity of mine ventilation system

从风阻和自然风压两方面考虑,分别对分支风量对风阻的灵敏度以及分支风量对自然风压的灵敏度进行了分析。前者通过求解灵敏度微分方程组,得出灵敏度矩阵,根据矩阵的性质,可以对每一条分支的风流稳定、整个通风网络的稳定作出判断;后者从灵敏度的定义入手,应用线性伴随网路法进行计算,得出灵敏度为自然风压所在分支的动力消耗与i分支中空气动力消耗之比值,为判别风流反向提供了一定的依据。

Considering the air resistance of branch and natural air pressure, the sensitivity of branch air quantity based on air resistance and natural air pressure are analyzed the former, worked out the differential equation of sensitivity, got sensitivity metric of every branch. So we can make a judgment about air stability of every branch and net based on the nature of sensitivity matrix; The latter, worked out sensitivity by linear adjoin net method, reached a conclusion that the sensitivity is a ratio of the power consumption of branch on which natural air pressure and branch is based.