FIELD: ventilation.
SUBSTANCE: invention relates to ventilation and can be used for system of main (tunnel) ventilation of underground. System for ventilation of tunnels between metro stations in smoke removal mode during a fire on a hauls stage includes inlet and exhaust ventilations of tunnel ventilation and fire-prevention valves installed in places adjoining to tunnels. Also, in each tunnel on the haul in zone of abutment of ventilation channels to right and left tunnels, on both sides from adjunctions, two fire-prevention valves with electric drive and automation system are installed to provide monitoring of valves position and interaction with train control system.
EFFECT: technical result consists in provision of efficient smoke removal from hauls in case of fire.
1 cl, 2 dwg
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