风流混合面对机站通风性能的影响研究

Research on Influence of Air-flow Mixing on Fan Station Ventilation

针对机站出风段局部阻力过大的问题,在分析了机站出口风流结构的基础上,建立了低阻力机站出风段局阻系数的数学模型,提出优化设计机站出风段合理的巷道结构参数,通过相似模拟实验确定机站巷扩帮条件下后接巷道最优收缩角为30°时机站局部阻力系数最小,研究结果对低阻力机站结构设计及推广应用具有一定的参考价值。

In view of the problem of excessive local resistance in the outwind section of the station,based on the analysis of the structure of the air flow at the outlet of the station,the mathematical model of the local resistance coefficient of the outlet section of the station with low resistance is established,and the reasonable structural parameters of the roadway for the optimal design of the outlet section of the station are put forward.Through similar simulation experiment,it is determined that the optimal contraction angle of the rear tunnel is 30°and the local resistance coefficient is the minimum.The results of the study have some reference value for the structural design and popularization of the low resistance engine station.