矿井避难硐室环境有害气体浓度控制技术

发布时间：2018-11-09 10:09

【摘要】：为有效控制煤矿避难硐室内有害气体浓度,保证避灾人员安全,分析了避灾过程人体代谢产生有害气体类型与释放速率,结合有害气体环境中人体的耐受能力,提出对人体代谢产生的CO、H2S、NH3、CH4等有害气体可不必采取净化措施。通过理论分析得出人均供风量为107 L/min时可将硐室内CO2平均浓度控制在0.5%,满足硐室CO2净化需要,人均压风供气量为450 L/min时,才满足《煤矿井下紧急避险系统建设管理暂行规定》中对CO快速净化的需要,结合人体对CO浓度环境的耐受能力,建议延长硐室内CO快速净化时间。通过试验得出2台风量4.7 m3/min、有效净化功率20%~30%的净化装置可满足50人避难硐室空气净化要求。
[Abstract]:In order to effectively control the concentration of harmful gas in coal mine shelter chamber and ensure the safety of disaster avoidance personnel, the types and release rate of harmful gases produced by metabolism of human body during disaster avoidance are analyzed, and the tolerance ability of human body in harmful gas environment is combined. It is suggested that purification measures should not be taken for harmful gases such as CO,H2S,NH3,CH4 produced by human metabolism. Through theoretical analysis, it is concluded that the average concentration of indoor CO2 can be controlled at 0.5 when the per capita air supply is 107 L/min, which meets the needs of chamber CO2 purification, and when the per capita pressurized air supply is 450 L/min, In order to meet the need of rapid purification of CO in "interim regulations on Construction and Management of Underground Emergency risk avoidance system in Coal Mine", combined with the tolerance of human body to the environment of CO concentration, it is suggested to extend the rapid purification time of CO in the chamber. The test results show that the purifying device with 2 typhoon volume 4.7 m3 / min and 20% effective purifying power can meet the air purification requirements of 50 asylum chambers.
【作者单位】：中国煤炭科工集团重庆研究院有限公司;
【基金】：“十二五”国家科技支撑计划资助项目(2012BAK04B09) 中国煤炭科工集团重庆研究院青年创新基金资助项目(2013QNJJ09)
【分类号】：TD774

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