JPS5816849B2 - Suikousai Vibrant - Google Patents

Description

[Detailed Description of the Invention] This invention is designed to heat-exchange the circulating culture solution of a hydroponic cultivation device installed in a greenhouse using circulating water of a pad and fan, so that crops can take root and grow at an optimal solution temperature. The present invention relates to a hydroponic cultivation plant with a very simple structure and a rational design.

Traditionally, management operations, seasonal cultivation conditions,
Hydroponic cultivation has been researched and developed from the viewpoint of proper cultivation and good workability, and some of it has come to be widely put into practical use.

However, at present, hydroponic cultivation has many disadvantages in its suitability under various conditions, and research to improve it is strongly desired.

In hydroponic cultivation equipment, it is extremely important to match the hardware such as the frame to be set and hematuria, and the software such as the culture medium and room temperature control. However, a plant that is simple and easy to operate has not yet been developed.

For example, although the band-and-fan system is a simple cooling system, it only has the function of cooling a greenhouse, which results in poor operating efficiency.

On the other hand, controlling the culture solution at an appropriate temperature, especially at elevated temperatures in the summer, not only does not allow proper nutrient absorption to the root hairs of the crops, but also poses a risk of rooting and disease outbreaks.

The purpose of this invention is to take advantage of the advantages of the pad-and-fan system and to meet the above-mentioned needs by making it possible to properly cool the culture solution in view of the problems of hydroponic cultivation plants based on the prior art described above. The purpose of the present invention is to provide a new systematic hydroponic cultivation plant that can meet the following needs.

The structure of the present invention in accordance with the above object is that in a hydroponic cultivation plant, water circulating through a pad provided on one side of the greenhouse brings the gas into liquid contact to reduce the temperature in the greenhouse due to heat of vaporization, and at the same time cool the greenhouse. The culture solution circulating in the hydroponic culture device is cooled in the circulation path by the cooling temperature of the pad circulating water tank due to the room temperature, and the cooled culture solution is supplied to the plant base of the hydroponic culture device for proper rooting. The gist of this is to make it possible to train children.

Next, embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a glass greenhouse, in which well-known hydroponic cultivation devices 2 are arranged in rows.

And, on one side of the glass house 1, well-known, for example,
A pad 3 containing cotton is provided on the other side, and a suction fan 5 rotated by a motor 4 is provided.

A hydroponic cultivation plant 6 comprising the pad 3, fan 5, hydroponic cultivation device 2, etc. has the configuration shown in FIG.
is connected to the upper nozzle pipe 11 of the pad 3, and dripping water from the pad 3 is returned to the tank 7 through a pipe 13 from a gutter 12 at the lower part.

Reference numeral 14 denotes a culture solution tank submerged in the circulating water 15 of the tank 7, and is connected via a pump 16 to a solution supply pipe 17.
The drain pipe 18 from the hydroponic cultivation apparatus 2 is connected to the hydroponic cultivation apparatus 2, and the drain pipe 18 from the hydroponic cultivation apparatus 2 faces the culture liquid tank 14 again.

19 is a hot water heating device installed in a greenhouse for winter use, and is connected to a hot water heating device 20 outside the system.

Then, an appropriate residual heat utilization device 19 of the hot water heating device 19
' is connected to the three-way valve 9 by a pipe 21 and connected to the inside of the tank 7 by a pipe 22.

Note that 23 is a cultivated crop such as a tomato that is planted in rows in the hydroponic cultivation device 2.

In the above configuration, cultivated crops 23 such as tomatoes are planted in the hydroponic cultivation device 2 in summer, and the pump 8 is operated and the three-way valve 9 is operated to circulate water 15 from the tank 7 to the nozzle pipe 11 via the pipe 10. When the water is supplied, the water shower from the nozzle pipe 11 comes into gas-liquid contact with the outside air vented for intake by the fan 5 rotated by the motor 4 and the cotton of the band 3, and the mist transpiring into the greenhouse 1 takes away the heat of vaporization. On the other hand, the water in the pad also loses heat of vaporization and becomes lower in temperature, returning to the tank 7 through the gutter 12 pipe 13 and lowering the temperature in the tank.
The culture solution 24 in the culture solution tank 14 is cooled, and by operating the pump 16, the cooled culture solution is supplied to the hydroponic cultivation device 2 from the solution supply pipe 17, and the cultivated crop 23 is grown. A cooled culture solution at a suitable temperature is supplied to the roots, that is, root hairs (not shown) to properly take root and grow, and the drained solution is returned to the culture solution tank 14 from the drain pipe 18.

Therefore, the room temperature in the greenhouse 1 is appropriately cooled by the pad-and-fan mechanism, while the culture solution in the hydroponic cultivation device 2 is cooled to a predetermined level by the culture solution cooling mechanism, so that the cultivated crops 23 can take root and grow under optimal temperature conditions. be done.

Also, since the pad and fan mechanism is not used in winter,
The band 3 is appropriately closed, the fan 5 is closed by stopping the motor 4, and on the other hand, the water heater 20 is activated to operate the hot water heating device 19 in the greenhouse 1 to raise the room temperature, and the three-way valve 9 is switched. and pipe water 15 from tank 7 to pipe 10. The three-way valve 9 pipe 21 leads to the residual heat utilization device 19' of the hot water heating device 19, and the temperature is raised, and the pipe 22 leads to the tank 7.
The temperature of the water 15 increases as it refluxes into the tank 7.
The culture solution 24 in the culture solution 14 submerged in the heated water 15 of
The temperature of the culture solution is raised by the pump 16 as described above, and the culture solution is fed through the liquid supply pipe 17 to provide suitable temperature conditions for rooting of the cultivated crops 23 in the hydroponic cultivation device 2, thereby achieving good growth.

Therefore, even in winter, the inside of the greenhouse 1 and the root hairs of the cultivated crops 23 are kept at an appropriate temperature, so freezing, cold damage, etc. do not occur.

In addition, for cooling and heating the culture solution, use the band water tank 7.
Instead of submerging the culture solution tank 14 directly, for example, a heat exchange coil pipe 26 may be provided from the culture solution tank 14 through a pump 25 into the tank 7, as shown in FIG. However, especially in a submerged type hydroponic cultivation apparatus, it is effective to connect the liquid supply pipe 17 and the liquid drain pipe 18 directly to the coil pipe 26 via the pump 16.

As mentioned above, for the hydroponic cultivation apparatus 2, cooling the roots of the row-planted crops 23 is extremely important for their establishment and growth, as shown in FIG.

A small band 3' is provided on the side of the glass greenhouse 1' to attach the tank 7.
The cooling air generated by the vaporization heat absorption of the mist generated by the gas-liquid contact with the water is sucked by the suction blower 27, and is sent to the base of the plant of the hydroponic cultivation device 2 through the duct 28 to the nozzle 29.
It is also possible to consider a design in which the air is blown out to cool the plant, the inside of the greenhouse 1 is cooled by the surplus cooling temperature, and the air is appropriately circulated and exhausted from the upper exhaust port 30.

In addition, as shown in FIG. 5, a small pad 3' is provided on the side of the glass greenhouse 1'', and a blower is used to suck air cooled by absorbing the heat of vaporization of the mist generated by the gas-liquid contact with the water from the tank 7. 27 and exhaust through the upper nozzle 31 of the cultivated crop 23 of the hydroponic cultivation device 2 through the duct 28', and blows onto the base of the plant to cool and circulate the cultivated crop 23 together with the base of the plant. It is also possible to create an efficient design in which the air is exhausted from .

As described above, according to the present invention, when cooling the hydroponic cultivation device installed in the greenhouse, the circulating cultivation liquid is cooled by the vaporization heat cooling water of the pad circulation water tank of the pad-and-fan type. At the same time, the culture solution can be cooled and supplied to the cultivated plants using the heat balance within the same thermal system, which has the advantage of preventing the propagation of pathogenic bacteria and preventing root rot.

Furthermore, by heating the water tank in winter, the temperature of the culture solution is also raised at the same time, so cold damage such as freezing is prevented.

Therefore, cultivated crops can take root and grow under extremely good conditions, making it possible to obtain good harvests.

[Brief explanation of the drawing]

The drawings show aspects of the present invention; Fig. 1 is a schematic explanatory diagram of one embodiment, Fig. 2 is a system diagram explaining its mechanism, Fig. 3 is a partial explanatory diagram of another embodiment, and Figs. 4-5. is a reference figure. 1...Greenhouse, 3...Pad, 5...
...Fan, 2...Hydroponic cultivation device, 24...
...Culture solution, 15...Kokusui,? , 14, 26...
...Heat exchange mechanism, 6...Hydroponic cultivation plant, 7
...Water tank, 14, 26...4 circulation; part.

Claims (1)

[Claims] 1. A gas-liquid contact pad is provided on one side of the greenhouse, a suction fan is provided on the other side, hydroponic cultivation devices are arranged in a row inside, and the circulating culture solution of the hydroponic cultivation device and the circulating water of the pad are connected. A hydroponic cultivation plant having a heat exchange mechanism interposed therebetween, characterized in that a circulation section provided for the hydroponic cultivation device is submerged in a circulation water tank provided for the band. plant.