GREENHOUSE Russian patent published in 1996 - IPC

FIELD: agriculture. SUBSTANCE: greenhouse has base 1, heat guard 2, irradiation system and heating system with main heat supply source and heating registers 6, 7. Greenhouse is divided by partition 3 into seedling compartment 4 and vegetable compartment 5 insulated from each other in which heating registers 6, 7 are installed. Heating system has cooling circuit 8 and temperature compensation unit 9 with additional heat supply source 15 made in form of heat exchange circuit placed on upper surface of reflecting members 17 of radiators 18 - lamps. Heating registers 6, 7 have return circuits 19, 20 with additional supply pumps 21, 22 and three-way mixing valves 23, 24. EFFECT: reduced heat energy consumption, increased yield and quality and cut down time of growing seedlings. 4 cl, 3 dwg