西川煤矿工作面上隅角瓦斯鉴定器测量误差分析
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摘要
针对西川煤矿1113采煤工作面上隅角使用光学瓦斯检测仪和低浓度瓦斯传感器测定的瓦斯浓度数据差距较大的问题,理论分析各检测仪器的测定原理,通过实验室标气检测、现场瓦斯浓度实测和气样色谱分析等实验手段综合分析,结果显示,西川煤矿上隅角瓦斯检定的失真仪器为光学瓦斯检测仪,通过现场的瓦斯实测数据分析,1113工作面上隅角处的气压、温度和N_2浓度与光瓦误差值的变化趋势之间没有明显的关系,造成测量误差的主要因素为气体成分中的O_2、CO和CO_2浓度变化。
In view of the big difference of gas concentration data measured by optical gas detector and gas sensor with low concentrate at the upper corner of 1113 mining face in Xichuan Coal Mine,measuring principle of instruments was analyzed theoretically. comprehensive analysis was made by laboratory standard gas detection,field gas concentration measurement and gas chromatographic analysis. It was found that: the data measured by optical gas detector was distorted,and there was no obvious relationship between these data with the gas pressure,temperature and N_2 concentration measured at the upper corner of 1113 mining face in Xichuan Coal Mine. Concentration Changes of O_2,CO and CO_2 might be the main factor for measuring error.
In view of the big difference of gas concentration data measured by optical gas detector and gas sensor with low concentrate at the upper corner of 1113 mining face in Xichuan Coal Mine,measuring principle of instruments was analyzed theoretically. comprehensive analysis was made by laboratory standard gas detection,field gas concentration measurement and gas chromatographic analysis. It was found that: the data measured by optical gas detector was distorted,and there was no obvious relationship between these data with the gas pressure,temperature and N_2 concentration measured at the upper corner of 1113 mining face in Xichuan Coal Mine. Concentration Changes of O_2,CO and CO_2 might be the main factor for measuring error.
引文
[1]高思强,张洪鹏.光瓦和便携仪在矿井瓦斯管理中的应用分析[J].山东煤炭科技,2009,(4):5-6.
[2]陈希豪.光学瓦斯检测仪的校验[J].煤炭科学技术,1974,(4):34-41.
[3]李岩,郭寿松.两种瓦斯检测仪器在庞庞塔煤矿上隅角测定数值不一致的原因分析[J].矿业安全与环保,2014,(1):57-59,62.
[4]刘建周,等.甲烷催化燃烧反应与甲烷传感器稳定性的研究[J].煤炭转化,1998,(1):87-90.
[5]谢宝卫,李国斌.催化燃烧型瓦斯检测仪器性能特征及影响因素浅析[J].煤矿安全,2002,33(3):54-55.
[2]陈希豪.光学瓦斯检测仪的校验[J].煤炭科学技术,1974,(4):34-41.
[3]李岩,郭寿松.两种瓦斯检测仪器在庞庞塔煤矿上隅角测定数值不一致的原因分析[J].矿业安全与环保,2014,(1):57-59,62.
[4]刘建周,等.甲烷催化燃烧反应与甲烷传感器稳定性的研究[J].煤炭转化,1998,(1):87-90.
[5]谢宝卫,李国斌.催化燃烧型瓦斯检测仪器性能特征及影响因素浅析[J].煤矿安全,2002,33(3):54-55.