【作者】 李海臣；

【导师】 周心权；

【作者基本信息】 中国矿业大学（北京） ， 安全技术及工程， 2011， 博士

【摘要】 为提高对瓦斯隐患的及时预警能力,本文研发出新型纳米A1203瓦斯传感器的元件载体,经测试其响应时间缩短到6秒,并提高其稳定性、灵敏度和抗毒性。研究分析了潘一矿综采工作面瓦斯涌出变化规律,其瓦斯浓度变化是沿综采工作面纵向逐渐升高的“爬坡曲线”。为瓦斯超限及时预警提供理论方面的支持。研发了新型无线瓦斯传感器网络系统,并实验分析瓦斯传感器探头开口方向和风流方向、风流速度对其响应速度的影响,得出随着角度与风速的增加,传感器的响应速度加快的结论,为优化瓦斯传感器布设的位置提供依据。本文研究成果提高了对瓦斯浓度超限及时预警技术装备的水平,具有重要的理论和实践意义。更多还原

【Abstract】 To improve timely warning of capability gas hazards.the dissertation developed a new type of nano-Al2O3carrier gas sensor element, tested their response time to six seconds, and improve the stability, sensitivity and resistance to toxicity. Research and analysis of the Panyi Mine Workface variation of gas emission, the gas concentration along the vertical mechanized mining face gradually increased,"climbing the curve." Provide timely warning for the gas gauge theory support. Developed a new wireless network gas monitoring system, and experimental analysis of gas sensor probe opening direction and the direction of air flow, air flow rate of the impact of its response, obtained with the angle and wind speed increases, the sensor response speed of the conclusion, to optimize the location of the gas sensor to provide a basis laid. This research to improve the timely warning overrun gas concentration level of technical equipment,has important theoretical and practical significance.更多还原