瓦斯隧道运营通风监控系统的设计

Design of Operation Ventilation Monitoring System for Gas Tunnel

研究目的:瓦斯隧道在运营中,瓦斯浓度在任何时间、任何地点都不得大于0.5%。针对其规范要求进行研究,进而采取有效的瓦斯隧道运营通风监控系统的设计。研究方法:在总结南昆线家竹箐隧道KJ4瓦斯监测与报警系统设计的基础上,结合本次"达成线云顶、天台寺"瓦斯隧道实际情况,进一步分析目前监控系统软件的技术,明确本次监控系统设计中需要解决软件技术支持的重点问题。研究结果:本次运营通风监控系统软件采用"基于非恒定流理论的通风控制模型"和神经网络控制算法及先进的监测联网技术。提高了集成度、可靠性,易安装、维护和使用,同时在经济上降低系统建设、维护和运营费用。研究结论:隧道风机控制室计算机软件、监测系统的联网技术、本地控制柜的应用软件、数据通讯的FSK技术、瓦斯监测传感器的接入技术运用到本瓦斯隧道运营通风监控系统设计中,充分体现了监控系统设计的先进性,从而在根本上解决瓦斯隧道通风控制问题。

Research purposes： The gas concentration in tunnel shall never be more than 0. 5% in anytime and anywhere during the operation, so it is necessary to do the researches on it on the basis of the requirements for the purpose of making perfect design of operation ventilation monitoring system for gas tunnel.Research methods ： Based on the design of K J4 gas monitoring and alarm system for Zhuqing Tunnel and combining with the practical situation of the gas tunnel, the further analyses are made for the software technologies used in current monitoring system and the main problems to be solved in design of the monitoring system are made clear.Research results ：This monitoring system adopts ventilation control model based on Non -steady Flow Theory, neural network control algorithm and other advanced technologies, so the integration and reliability of the system are enhanced with easy installation, maintenance and operation and the costs of construction, maintenance and operation can be lowered.Research conclusions： The ventilation control problem of the gas tunnel has been solved basically by applying the following softwares and technologies in the design of the gas tunnel operation ventilation monitoring system, including the computer software for fan control room, the network technology of monitoring system, the application software for local cubicle, FSK technology of data communication and switching in technology of gas monitoring sensor.