SWITCHING POINT TO SELF-RESCUERS Russian patent published in 2024 - IPC E21F11/00 A62B7/04 

FIELD: mining.

SUBSTANCE: invention relates to points of switching to standby self-rescuers. Point for switching to standby self-rescuers includes an inlet compartment, an outlet compartment and at least one main compartment including cells for standby self-rescuers and a container for used self-rescuers. Inlet and outlet compartments include doors. Each of the compartments includes a compressed air source and an air supply system. Compartments are connected by an air supply system and include at least two electric pneumatic valves and air shower nozzles. Inlet of one electric pneumatic valve is connected to the shaft air network, the inlet of the other one is connected to the compressed air source. Outlets of electropneumatic valves are combined into a single air line with nozzles for air supply throughout the volume of the switching point. Compressed air cylinder is used as compressed air source. Inlet and outlet compartments additionally include an automation system. Automation system includes at least two magnetic reed switch sensors for monitoring the state of the door, which are installed on the doors of the inlet and outlet compartments. Includes atmosphere state control system, including air state sensors in switching point. Air condition sensors are oxygen sensor, carbon monoxide sensor, methane sensor, temperature sensor and pressure sensor. Automation system is connected to the atmosphere state monitoring system and additionally includes warning plates, wherein depending on the atmosphere state monitoring system readings, the visualization on the said plates changes. In addition, it includes pressure sensors located along the air flow in front of the electric pneumatic valves. Automation system is connected to pressure sensors and configured to switch air supply between electropneumatic valves based on readings of pressure sensors. Each electropneumatic valve has a bypass channel with a valve for manual activation of air supply.

EFFECT: increased safety of miners due to reliable operation of the fresh air supply system for the whole volume of the switching point.

10 cl, 3 dwg