氮气与液氮防灭火技术及成本分析

Fire Extinguishing Technology and Cost Analysis of Gaseous Nitrogen and Liquid Nitrogen

氮气和液氮是目前煤矿井下防灭火的重要技术手段。对于井下煤炭自燃及外源火灾,采用氮气和液氮技术可防可灭,且灭火后易于井下生产恢复。对比分析了氮气和液氮防灭火的基本原理、方法、优缺点,以及经济成本并且介绍了在煤矿中的应用情况。

Nitrogen gas and liquid are important technologies in coal mine fire prevention and extinguishing. For the spontaneous combustion and outer source fire,nitrogen gas and liquid technology can prevent the mine and easy to reproduce. Analyzed the principle,method,advantages and disadvantages,economic cost of nitrogen gas and liquid fire prevention and introduced its application in the coal mine.