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经验表明,为保证矿井区段通风调配和监控分系统的正常工作,有两台沼气传感器就足够了.一台安在工作面回风流中,以便在采煤区段沼气浓度超限时切断其电源,另
Experience has shown that two biogas sensors are sufficient to ensure proper operation of the ventilation section and monitoring subsystem in the mine section. One is installed in the return air flow in the face to cut off the power supply when the biogas concentration in the coal section exceeds its limit ,another