In coal mining, smoke flow from tunnel fires can easily cause a large number of deaths in the ventilation network. But the optimal smoke flow path control methods and automatic control system were lacked. In order to improve the efficiency of fire emergency rescue, the control mechanism and regional linkage control system for fire induced smoke flow in ventilation network was studied. Based on a ventilation system in coal mines, different fire scenarios for smoke flow were analysed using ventilation simulation software (VSS). Smoke flow control methods were simulated under different ventilation modes, a contrastive analysis was conducted for the respective effects and the optimal smoke flow path control methods were confirmed in different fire scenarios. A new type of ventilation facility, regional monitoring sub‐stations and remote linkage control platforms were developed for smoke control. A reliability evaluation model for the control system was established by Bayesian network. The failure of the linkage control is 98.9%, the monitoring sub‐station is 64.4%, the sub‐station communication is 43.9%; thus, a double insurance of the control process must be realised. Since its application, the proposed regional linkage control system has been repeatedly tested through fire drills, and good results have been obtained.

中文翻译：

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煤矿通风网络及联动控制系统中火灾烟气流动特性的研究

在煤矿开采中，隧道火灾产生的烟气很容易在通风网络中造成大量死亡。但是缺乏最佳的烟气流路控制方法和自动控制系统。为了提高消防应急救援效率，研究了通风网络中火灾引起的烟流的控制机制和区域联动控制系统。基于煤矿的通风系统，使用通风模拟软件（VSS）分析了不同的火灾烟流情景。模拟了不同通风方式下的烟气流量控制方法，对各自的效果进行了对比分析，确定了不同火灾场景下的最佳烟气路径控制方法。一种新型的通风设备 开发了用于烟雾控制的区域监控变电站和远程联动控制平台。利用贝叶斯网络建立了控制系统的可靠性评估模型。联动控制失败率为98.9％，监控子站为64.4％，子站通讯为43.9％。因此，必须实现控制过程的双重保证。自从应用以来，建议的区域联动控制系统已经通过消防演习反复测试，并获得了良好的效果。