【摘要】 针对采空区注氮防火工艺中的采空区瓦斯监测问题 ,提出在同时监测采空区 O2 ,CO,CO2 的条件下 ,使用光学瓦斯检定器测定采空瓦斯浓度 ,给出瓦斯检定器读数的校正原理 ,通过对试验气样的分析结果与校正结果的对比 ,验证了该方法的正确性 ,表明校正结果完全能够满足注氮防火工程对采空区瓦斯监测的需要更多还原

【Abstract】 According to the problem of the gas monitoring in the goaf injected nitrogen for fire prevention,this paper proposes the method measuring the density of gas by a gas detector,and gives the correction principles for the gas detector.The tests proved the correction result can satisfy the need of gas monitoring in the goaf injected nitrogen gas for fire prevention. `更多还原