JPH09103203A - Hydroponic panel and hydroponic device using the same - Google Patents

Abstract

(57) Abstract: To provide a hydroponic cultivation device capable of supplying sufficient oxygen to a planted plant. SOLUTION: An air diffuser pipe 6 for supplying oxygen is provided in the nutrient solution of a deep-bottom water tank tray 1 for nutrient solution cultivation formed in a longitudinal direction, and excess nutrient solution is drained from the water tank tray 1.
A nutrient solution cultivating apparatus having a circulation channel for reheating the drained nutrient solution to an appropriate temperature and then replenishing the aquarium tray 1 again. The nutrient solution cultivation apparatus is floated on a nutrient solution surface W in the aquarium tray 1. ,
A plurality of rows are provided at predetermined intervals in the longitudinal direction, and a row of the planting holes 11 provided on the bottom side and the planting holes 11 into which the nursery members 14 in which the plants P are planted are respectively inserted. And a panel 10 for hydroponics having a groove 12 continuous in the longitudinal direction. When the hydroponic panel 10 is floated on the liquid surface W, a tunnel-shaped open space 15 is formed between the groove 12 and the liquid surface W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydroponic cultivation apparatus for growing plant seedlings with a nutrient solution.

[0002]

2. Description of the Related Art As a method for cultivating plant seedlings with a nutrient solution, a long tray having a predetermined downward slope is used as a channel for nutrient solution, and the plant is planted in this channel as well as outside. There is a nutrient solution cultivator that returns the nutrient solution flowing through the gradient to the tray again by the pump and constantly circulates it.

However, in this type of nutrient solution cultivator, it is difficult to keep the temperature and concentration of the nutrient solution constant because the nutrient solution is made to flow through the tray, and the nutrient solution is always returned to the tray again. Since running water is circulated, there is a drawback that the amount of power consumption is large and the cost is high.

Therefore, conventionally, a hydroponics device as shown in FIG. 1 has been proposed. The conventional hydroponic cultivation apparatus has a long deep-bottom water tank tray 1 for hydroponic cultivation (hereinafter, referred to as a water tank tray) which is formed in a deep bottom with an open upper part.
A nutrient solution is stored in the aquarium tray 1, and a nutrient solution cultivation panel 30 is floated on the nutrient solution surface W. The hydroponic panel 30 has a planting hole 31 in which a plurality of rows arranged in the longitudinal direction at predetermined intervals are provided in the width direction, and as shown in FIG. The nursery member 34 in which the plant P is planted is inserted. Then, the nutrient solution overflowing from one longitudinal end 1a of the water tank tray 1 is drained, the drained nutrient solution is once stored in the tank 3 and kept at an appropriate temperature by the heating / cooling means 4, and the length of the water tank tray 1 is lengthened again. A kind of circulation flow path is configured to return the nutrient solution as a shortage from the other end side 1b in the direction via the pump 5. In addition, the inner bottom of the aquarium tray 1 is provided with an air diffuser 6 continuous in the longitudinal direction to generate oxygen in the plants P planted on the side of the nutrient solution cultivation panel 30 by generating bubbles in the aquarium tray 1. We are supplying.

In such a nutrient solution cultivator, a large amount of nutrient solution is stored in the deep-bottomed water tank tray 1, so that the temperature and concentration of the nutrient solution can be kept constant, and running water is supplied to the water tank tray 1. Since the electric power of the pump 5 is not consumed as much as it is circulated, it is possible to reduce the cost.

[0006]

However, in the above-mentioned conventional hydroponic cultivation apparatus, as shown in FIG. 3, since the hydroponic surface is covered with the hydroponic panel 30, a so-called open water surface is not formed. Absence of absorption of oxygen from the water surface cannot be expected.
In addition, the dissolved oxygen in the nutrient solution absorbed from the roots of the plant P is
It is replenished by forcible replenishment means (air diffuser 6), but during the summer water temperature rising period, the dissolved capacity of the nutrient solution was reduced, so that oxygen was not sufficiently supplemented in the nutrient solution and the plant P was deficient in oxygen. There was a problem that it became a state and caused upbringing obstacles.

In order to solve the above problems, the present invention is a hydroponic cultivation apparatus that utilizes the advantage of deep water, and is capable of supplying sufficient oxygen to planted plants. An object is to provide a panel for cultivation and a hydroponic cultivation apparatus using the panel.

[0008]

In order to achieve the above object, in the hydroponic cultivation apparatus according to the present invention, the hydroponic cultivation apparatus is provided so as to float on the nutrient solution surface W of the deep-bottom water tank tray 1 for hydroponic cultivation, and is provided at predetermined intervals in the longitudinal direction. Hydroponic culture having a large number of planting holes 11 in which a plurality of rows are provided in a plurality of rows and concave grooves 12 provided in the bottom side and continuous in the longitudinal direction along the rows of the planting holes 11. It is characterized by having a panel 10 for use.

The hydroponic culture apparatus according to the present invention comprises an air diffuser 6 for supplying oxygen into the nutrient solution in the deep-water tank tray 1 for hydroponic culture.
And a heating / cooling means 4 for heating or cooling the nutrient solution in the aquarium tray 1 to an appropriate temperature, and a large number of fixed plants provided with a plurality of rows provided in the longitudinal direction at predetermined intervals. Hole 11
And a panel 10 for nutrient solution cultivation, which is provided on the bottom surface side and has a groove 12 that is continuous in the longitudinal direction along the row of the planting holes 11, is provided so as to float above the nutrient solution surface W in the aquarium tray 1. The configuration may be different.

Further, a diffusing pipe 6 for supplying oxygen is arranged in the nutrient solution of the deep-bottom water tank tray 1 for nutrient solution cultivation, and the nutrient solution drained from the water tank tray 1 is heated or cooled to an appropriate temperature. It has a circulation channel for replenishing the aquarium tray 1 later,
A large number of planting holes 11 provided with a plurality of rows bored in the longitudinal direction at predetermined intervals, and a concave groove 12 provided on the bottom surface side and continuous in the longitudinal direction along the rows of the planting holes 11. It is also possible to adopt a configuration in which the liquid culture panel 10 having the above is floated on the liquid surface W in the aquarium tray 1.

Further, in the nutrient solution cultivating apparatus having a circulation channel for replenishing the nutrient solution drained from the deep-bottom water tank tray 1 for nutrient solution cultivation to the aquarium tray 1 after heating or cooling to an appropriate temperature, In addition to replenishing the nutrient solution in which air is press-fitted into the passage, a large number of planting holes 11 provided with a plurality of rows bored in the longitudinal direction at predetermined intervals, and the bottom side of the planting holes 11 It is also possible to adopt a configuration in which a panel for nutrient solution cultivation 10 having concave grooves 12 continuous in the longitudinal direction along a row is provided so as to float above the nutrient solution surface W in the aquarium tray 1.

Therefore, the nutrient solution cultivation panel 10 in which the plant P is planted in the fixed planting hole 11 is placed on the nutrient solution surface W in the aquarium tray 1.
When it is arranged in the nutrient solution cultivation panel 10, the opening side of the concave groove 12 formed in the nutrient solution cultivation panel 10 is immersed in the nutrient solution and the concave groove 12 is formed.
Is closed above the nutrient solution surface W, and a tunnel-shaped open space 15 is formed between the nutrient solution surface W and the closed side of the groove 12.

The plant P planted in the planting hole 11 of the hydroponic panel 10 has a root protruding from the groove 12 of the hydroponic panel 10 so that most of it is immersed in the nutrient solution. To be done.

The air diffuser 6 for supplying oxygen into the nutrient solution in the aquarium tray 1 or the bubbles caused by the press-in of air pops in the tunnel-shaped open space 15 and moves the nutrient solution surface W to dissolve oxygen at the boundary surface. In addition to promoting heat dissipation, it also evaporates heat, removing heat of vaporization and saving cooling energy in the summer.

Furthermore, the planting hole 1 of the hydroponic panel 10
1, the root extends into the water, but in the tunnel-shaped open space 15 formed between the concave groove 12 formed on the bottom surface side of the hydroponic panel 10 and the nutrient surface W, the root is exposed to moisture. Occurs,
It can absorb oxygen directly from the air.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. In the embodiments described below, the same parts as those in the above-described conventional example will be described with the same reference numerals.

As shown in FIG. 1, the hydroponics device of the present invention has a long bottom deep-water tank tray for hydroponics, which has an open upper part and is formed in a deep bottom so that a large amount of nutrient solution can be stored therein. 1
(Hereinafter referred to as a water tank tray). The aquarium tray 1 is formed of a heat insulating material such as expanded polystyrene.

A drain pipe 2 is provided at the opening edge of one end side 1a in the longitudinal direction of the water tank tray 1 so as to drain the excess nutrient solution overflowing from the predetermined nutrient solution surface W. The nutrient solution drained from the drain pipe 2 is stored in the tank 3. The nutrient solution stored in the tank 3 is kept at an appropriate temperature by heating / cooling means 4 such as a boiler or a chiller. And
The nutrient solution in the tank 3 that has been kept warm is pumped as needed by the pump 5
A kind of circulation flow path is configured so that it is pumped up by and is replenished as a shortage from the other end side 1b of the water tank tray 1. The heating / cooling means 4 is not limited to a structure in which the nutrient solution stored in the tank 3 is kept at an appropriate temperature, and for example, there is no tank 3 and the drainage nutrient solution is replenished in the aquarium tray 1 again. May be configured to keep the nutrient solution at an appropriate temperature.

On the inner bottom of the water tank tray 1, an air diffuser 6 continuous in the longitudinal direction is arranged. The air diffuser 6 is formed in a tubular shape, is connected to the air pump 7 outside the water tank tray 1, and has a plurality of ventilation holes 6 a in a portion piped inside the water tank tray 1. Then, the oxygen sent into the air diffuser 6 by the air pump 7 is sent as bubbles into the nutrient solution in the water tank tray 1 through the vent holes 6a, and is supplied to the plant P described later.

The plants P are planted on the nutrient solution cultivation panel 10 provided on the nutrient solution surface W stored in the aquarium tray 1.
The hydroponic panel 10 is made of, for example, a material such as expanded polystyrene, and can float above the liquid surface W. The hydroponic panel 10 is provided with a plurality of planting holes 11 as shown in FIGS. 2 (a), 2 (b) and 2 (c). The planting holes 11 are formed by providing a plurality of rows arranged in the width direction at a predetermined interval in the longitudinal direction of the hydroponic panel 10. In addition, on the bottom surface side of the panel 10 for hydroponics, concave grooves 12 that are continuous along the row of the planting holes 11 provided in the longitudinal direction of the planting holes 11 are formed. A mortar-shaped recess 13 is formed at the opening of each planting hole 11 on the flat surface side of the hydroponic panel 10.

As shown in FIG. 3, the plant P is fitted into the planting hole 11 in a state where it is planted in the nursery member 14 as shown in FIG. Also, the nursery member 1
Numeral 4 is a substantially prismatic block having a diameter slightly larger than that of the planting hole 11, and is a foamed urethane having an appropriate air permeability and water permeability, rock wool which is made by melting rock at a high temperature to form a fiber, or formed into a block. It is made of a porous material such as polyester fiber.

Then, as shown in FIG. 3, when the nutrient solution cultivation panel 10 in which the plant P is planted is arranged on the aquarium tray 1 in which the nutrient solution is stored, the bottom surface side of the nutrient solution cultivation panel 10 is obtained. The opening side of the recessed groove 12 formed in is immersed in the nutrient solution, and the closed side of the recessed groove 12 is located above the nutrient solution surface W indicated by the alternate long and short dash line in the figure. A tunnel-shaped open water space 15 is formed between and.

The seedbed member 14 on which the plant P is directly planted is soaked in the nutrient solution up to the middle because the groove 12 is provided on the bottom surface side of the nutrient solution cultivation panel 10. Most of the roots of the plant P protruding from the nursery member 14 are immersed in the nutrient solution.

Then, the air bubbles sent from the air diffuser 6 arranged at the inner bottom of the aquarium tray 1 rise in the direction of the nutrient solution surface W and enter the concave groove 12 of the nutrient solution cultivation panel 10. At the same time, oxygen is also absorbed from the open water space 15. As a result, a large amount of oxygen gathers around the seed bed member 14, and a large amount of oxygen is supplied to the roots of the plant P protruding from the seed bed member 14.

Since the aquarium tray 1 is continuously provided long and the nutrient solution cultivation panel 10 floats on the nutrient solution surface W of the aquarium tray 1, one end side in the longitudinal direction of the aquarium tray 1 is located. It is possible to move the hydroponic panel 10 from 1a to the other end side 1b. Therefore, the plant P can move while growing on the hydroponic panel 10,
As shown in FIG. 1, a plurality of hydroponic panels 10 are floated in the longitudinal direction of the aquarium tray 1 to replenish the hydroponic panels 10 with planted seedlings of the plant P at one end 1a,
Each end in the longitudinal direction of the aquarium tray 1 becomes a base for “planting work” and “harvesting work”, such as removing the hydroponic panel 10 for harvesting the plant P grown on the other end side 1b. There are advantages such as easy automation.

Furthermore, the panel 10 for hydroponics is placed on the nutrient surface W.
When it is installed in the water, a tunnel-shaped open water space 15 is formed between the nutrient solution surface W and the closed side of the concave groove 12, and the water temperature is lowered by the heat of vaporization from the open water by the open water space 15. The dissolved conditions can be improved to save the cooling energy.

In the above-described embodiment, oxygen is supplied to the plant P by air bubbles obtained from the air pump 7 through the air diffusing pipe 6. However, the present invention is not limited to this, and the air is injected under pressure. A liquid may be used, which makes it easier to supply oxygen to the plant P in the nutrient solution and from the nutrient surface W.

[0028]

As described above, the hydroponic cultivation apparatus according to the present invention is an elongated hydroponic cultivation panel provided with a plurality of planting holes in which plants are planted. By providing a continuous groove in the longitudinal direction along the, when the nutrient solution cultivation panel is provided on the nutrient solution surface in the aquarium tray, an open water space is created between the groove and the nutrient solution surface. Since air bubbles rising in the nutrient solution through the trachea or air pressurize into the open water space consisting of the concave groove, oxygen is also absorbed from the nutrient solution surface and sufficient oxygen can be supplied to plants. it can.

Furthermore, since the water temperature is lowered by the heat of vaporization from the water opening, the water temperature can be lowered by the open water space between the concave groove and the water surface, which occurs when the hydroponic panel is provided on the water surface. The dissolved conditions of oxygen are improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the overall configuration of a hydroponics device.

FIG. 2A is a plan view showing a main part of the hydroponic cultivation apparatus of the present invention. (B) The same bottom view (c) The sectional view on the AA line in Drawing 2 (a).

FIG. 3 is a cross-sectional view showing a usage state of the main part.

FIG. 4 is a cross-sectional view showing a main part of a conventional hydroponics device.

[Explanation of symbols]

1 ... (deep bottom for hydroponic culture) aquarium tray, 1a ... (aquarium tray) one end side, 1b ... (aquarium tray) other end side, 6 ... air diffuser, 10 ... hydroponic panel, 11 ... fixed planting Hole, 12 ...
Grooves, P ... plants, W ... nutrient solution surface.

Claims (4)

[Claims] 1. A large number of planting holes, which are provided so as to float on a nutrient solution surface of a deep-bottom aquarium tray for hydroponic culture, and in which a plurality of rows are provided at predetermined intervals in the longitudinal direction, and a bottom surface. A groove for hydroponic cultivation, which is provided on the side and has a groove that is continuous in the longitudinal direction along the row of the planting holes. 2. A diffusing pipe for supplying oxygen into the nutrient solution of a deep-bottom water tank tray for nutrient solution cultivation, and heating / cooling means for heating or cooling the nutrient solution in the aquarium tray to an appropriate temperature, A nutrient having a large number of planting holes provided with a plurality of rows bored in the longitudinal direction at predetermined intervals, and a concave groove provided in the bottom surface and continuous in the longitudinal direction along the row of the planting holes. A hydroponic cultivation apparatus, wherein a hydroponic panel is provided so as to float on the liquid surface of the aquarium tray. 3. A diffusing pipe for supplying oxygen is arranged in the nutrient solution of the deep-bottom water tank tray for nutrient solution cultivation, and the nutrient solution drained from the aquarium tray is heated or cooled to an appropriate temperature, and then the aquarium tank is reused. A large number of planting holes, each of which has a circulation channel for replenishing the tray and is provided with a plurality of columns formed in the longitudinal direction at predetermined intervals, and provided on the bottom side, along the column of the planting holes. A hydroponic cultivation apparatus, comprising: a hydroponic panel having a recessed groove continuous in the longitudinal direction, which is provided so as to float above the nutrient solution surface in the aquarium tray. 4. A nutrient solution cultivating apparatus having a circulation channel for replenishing the nutrient solution drained from the deep-bottom water tank tray for nutrient cultivation to the aquarium tray after heating or cooling to an appropriate temperature. Along with replenishing the nutrient solution in which air is press-fitted, a large number of planting holes provided with a plurality of rows bored in the longitudinal direction at predetermined intervals and provided on the bottom side, along the row of the planting holes. A hydroponic cultivation apparatus, comprising: a hydroponic panel having a recessed groove continuous in the longitudinal direction, which is provided so as to float on a liquid surface in a deep-water tank for hydroponic culture.