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Fire extinguisher for mines - has additives stock tank monitor to close agent supply line valve when stock drops below set level
Fire extinguisher for mines - has additives stock tank monitor to close agent supply line valve when stock drops below set level
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机译:矿用灭火器-具有添加剂储罐监控器,以在库存降至设定水平以下时关闭试剂供应管线阀门
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摘要
A fire extinguisher for use in mines has a feedline for the pressurised agent which connects through a control valve to a mixer which adds typically foamer, wetting agents etc. The additive stock is monitored so as to close the control valve for the extinguishing agent when the stock falls below a minimum value. An exciter line should be provided which connects with the control valve and has exciter valves and between these and the valve has a cutoff valve to close when the additives fall below a minimum level in the stock container. This cutoff valve should be linked by line to a valve which applies the pressure of the agent to close off the exciter line in response to the weight or fill in the stock container.
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