METHOD OF CONSTANT METERING OF CARBON DIOXIDE TO GREENHOUSES IN AUTOMATIC MODE Russian patent published in 2015 - IPC A01G7/02 A01G9/18 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture, in particular, to greenhouse facility, where carbon dioxide is used to feed plants to increase yields. The method comprises selecting, transportation and metering of carbon dioxide. Selection and simultaneous transportation of carbon dioxide to the fan 2 of the utiliser 1 of the boiler unit is performed in the automatic mode, depending on the concentration of carbon dioxide in each greenhouse. The concentration of carbon dioxide in the greenhouse is controlled by the sensor mounted in it. The constant metering of carbon dioxide into the greenhouse is performed automatically by adjusting the position of the valve 4 at the inlet of the greenhouse and change in pressure in the pipeline system by adjusting the rate of rotation of the fan according to the results of measuring the pressure in the pipeline system.

EFFECT: method enables to provide the possibility of the automatic control system of production, transportation and metering of carbon dioxide of the required concentration, the operation of the source of heat at low pressures without the use of network pumps, and dressing the plants with carbon dioxide free from harmful impurities at various methods of growing plants, including directly on the ground.

2 dwg