VENTILATION SYSTEM OF STOCK-REARING ROOMS Russian patent published in 1998 - IPC

FIELD: ventilation system for stock-rearing rooms at considerable release of heat. SUBSTANCE: ventilation system includes supply fan and exhaust fan, exhaust trunks, exhaust air duct mounted inside supply air duct at spaced relation forming heat exchanger and holes for outlet of moisture. System is additionally provided with second supply fan 6 mounted on opposite side of supply air duct. Exhaust fan 2 is connected to exhaust air duct 4 in its central portion. Outlets 7 and 8 of exhaust air duct 4 from supply air duct 3 are provided at points of connection of supply fans 1 and 6. Dispensing air duct 12 with air outlet holes 13 and supply air duct 3 are interconnected in central portion; ends of dispensing air duct are blanked off. EFFECT: enhanced efficiency. 3 dwg