基于压力梯度法瓦斯抽采管路检漏分析与维护

Leak Detection Analysis and Maintenance of Gas Extraction Pipeline Based on Pressure Gradient Method

对长岭煤矿矿井瓦斯抽采系统抽采效率进行估算,基于瓦斯压力梯度法,运用数值模拟手段验证压力梯度法检测管路泄漏的原理,采用现场管路分段负压监测法对矿井瓦斯抽采系统进行检漏分析,并在现场对管路泄漏进行确认与维护。结果表明,采用压力梯度法对瓦斯抽采管路进行检漏,能够高效精准地解决管路泄漏问题,有效提高长岭煤矿瓦斯抽采效率,对矿井安全与高效生产具有重要意义。

By Changling coal mine gas extraction efficiency,extraction system for the estimation,based on the gas pressure gradient method,the application of numerical simulation method is the principle of pressure gradient method to detect pipeline leakage,pipeline segment negative pressure monitoring method adopted for mine gas extraction system are analyzed in leak detection,and has carried on the confirmation to pipeline leak at the scene and maintenance.The results show that using pressure gradient method to detect the leakage of gas extraction pipeline can effectively and accurately solve the leakage problem of pipeline,effectively improve the gas extraction efficiency of Changling coal mine,and is of great significance to mine safety and efficient production.