SU1487848A1 - Automatic installation for growing plants - Google Patents

Description

The invention relates to agriculture and is intended for growing plants by the method of hydroponics. The aim of the invention is to increase reliability2

ti. The installation contains the growing vessels 1 and the reservoir 3 for the feed liquid. Vegetation vessels 1 have sensors 14 and filling speeds 14, as well as overflow pressure wells 5 located in tank 3 and connected to drain pipes 4. In tank 3 there is a rotary diaphragm 6 with an air-lift nozzle 7 connected to a source of compressed air 1 1. Air lift nozzles 7 alternately mates with each drain pipe 4, through which the nutrient solution rises into the growing vessel 1. At the same time, the other growing vessel 1, filled before that, is being emptied. The solution circulates in the circuit 9. 1 Il.

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The invention relates to agriculture and is intended for growing plants by the method of hydroponics.

The purpose of the invention is to increase reliability.

The drawing shows the functional diagram of the installation.

Automatic plant for growing plants contains vegetative vessels 1 with holders 2 for plants. Each growing vessel 1 communicates with reservoir 3 for the supply liquid through the drain pipe 4 and has an overflow pressure well 5 located in the tank 3, the bottom of which is connected to the upper end of the drain pipe 4. In the tank 3 a rotary diaphragm 6 with an air-lift nozzle 7 and drive 8 is located The tank 3 is equipped with a circulation circuit 9 with a pump 10. The rotary diaphragm 6 is placed with a gap relative to the walls of the tank 3. The inlet of the circulation circuit 9 is located above the diaphragm 6, and the outlet is below it. Air lift nozzle 7 is connected to a source of pipe 11 of compressed air with a regulator 12 of the feed. In the tank 3 there is a water-measuring chamber 13 with a float valve. Each vegetation vessel 1 is equipped with a sensor of level 14 and filling speed. The unit has a control unit 15, which is connected to sensors 14 of vegetative vessels 1, a drive 8 of a rotary diaphragm 7, a drive of a pump 10 and a regulator 12 of compressed air supply. The circulation circuit 9 also includes temperature sensors 16, heater 17, pH sensor 18, and analyzer 19 nutrient solution components, all of which are connected to the inputs of the control unit.

The installation works as follows.

In the water chamber 13 through the open float valve in the installation of water. At the same time, the supply of compressed air to the air-lift nozzle 7 and the pump P are turned on to circulate the fluid around the circuit 9.

The liquid from the tank 3 in the form of a solution-air mixture rises due to a decrease in its density through the pipe 4 to the pressure well 5, where it is separated; the air goes into the atmosphere as well

The aerated liquid enters the growing vessel 1 and gradually fills it to the top. Excess solution is drained back to reservoir 3. Then block 15

The control unit 5 includes an actuator 8 that turns the diaphragm 6 until the air-lift nozzle 7 mates with the lower end of the following drain pipe 4. Two processes follow simultaneously:

•, 0 discharge of the solution from the previously filled vegetation vessel 1 and feed it into the next one.

When the solution passes through the circulation circuit 9, it is corrected for the batteries and its temperature is regulated. The ratio of the rate of circulation of the solution and the supply of compressed air are regulated by means of sensors 14 and the filling rate of the growing plant 1.

Claims (1)

Claim An automatic plant for growing plants, containing vegetative vessels, communicating by means of vertical drain pipes with a reservoir for the feed liquid, connected to a source of compressed air and having a water chamber with a float valve, characterized in that, in order to increase reliability, the reservoir for the feed 30 fluid in the upper part communicated with the atmosphere and is equipped with a circulation circuit with a pump and a rotary diaphragm with an air-lift nozzle installed with a gap relative to the tank walls, communicated with a source of compressed air 35 with the possibility of alternate mating with the lower ends of the drain pipe, while the inlet of the circulation circuit is located above the rotary diaphragm, and the output - below it, and each 40 A growing vessel has a level sensor and filling speed sensor and an overflow pressure well located in the tank, the bottom of which is connected to the upper end of the drain pipe, while the installation is equipped with a control unit that connects to the growing vessel sensors, the rotary diaphragm drive, the circulation pump drive and the regulator compressed air supply.