MODE OF OPERATION AND DEVICE FOR VENTILATION OF ROAD TUNNELS Russian patent published in 2013 - IPC E21F1/00 B03C3/02 F02C3/00 

FIELD: ventilation.

SUBSTANCE: on the route of tunnels at certain distances from the input and output portals the exhaust ventilation shafts with dust cleaning units and gas turbine mini-thermal power stations are additionally located. Supply of most of fresh atmospheric air to the tunnels and removal of contaminated air from the tunnels is carried out due to exhaustion created by the air compressors of additional power gas turbine units. Gas turbines are used for electrical power generation. The heat of the exhaust combustion products is recovered in the recovery-boiler, thermal energy is generated and used for heat supply of buildings. The products of combustion after the recovery-boiler are released through the chimney into the atmosphere and harmful gas components of the combustion products are dissipated at a height of 60-80 metres. Simultaneously with the ventilation of tunnels the electric and thermal energy is generated and it is delivered to consumers. Harmful gas components of the combustion products are dispersed in the atmosphere at a height of 60-80 metres.

EFFECT: improved economic performance of the devices for ventilation in combination with their use for additional generation of electric and thermal energy.

2 dwg, 4 cl