JP2018174730A - Plant hydroponic apparatus, plant hydroponic system, and cultivation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a plant hydroponic apparatus that can perform absorption of liquid and absorption of gas evaporated from liquid by a plant more uniformly corresponding to a type of liquid provided to a plant to be cultivated.SOLUTION: A plant hydroponic apparatus 100 comprises: a storage container 101 for storing liquid; a first liquid supply mechanism M1 which provides first liquid to the storage container 101 at a first water level; and a second liquid supply mechanism M2 which provides second liquid to the storage container 101 at a second water level.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a plant hydroponic cultivation apparatus, a plant hydroponic cultivation system, and a cultivation method, and more particularly to adjusting the water level of a liquid provided to a storage container for storing the liquid according to the type of liquid.

  Conventionally, in plant cultivation, in order to increase the yield of cultivated plants, carbon dioxide gas is supplied to the cultivated plants so as to increase the amount of photosynthesis (see, for example, Patent Document 1). .

  For example, Patent Document 1 discloses a method in which carbonated water is sprayed in a spray form from the top of a production community, and the sprayed spray of carbonated water is sent by a fan so as to be efficiently attached to plant leaves.

JP, 2008-199920, A

  However, there is a need for a simple and more efficient plant hydroponic cultivation apparatus, a plant hydroponic cultivation system and a cultivation method.

  The present inventors have made simple and effective plant hydroponic cultivation by simply providing different liquids at different water levels to liquid storage containers for supplying water to plants as a result of earnest research and development. It has been found that the present invention can be carried out.

  The present invention provides the following items.

(Item 1)
A reservoir for storing liquid,
A first liquid supply mechanism for providing a first liquid to the storage container at a first water level;
A second liquid supply mechanism for providing a second liquid to the storage container at a second water level;
, A plant hydroponic cultivation apparatus.

(Item 2)
The storage container is configured such that a storage container for storing a plant is disposed therein, and the first water level is a water level at which the first liquid intrudes into the storage container, and the second water level is the second water level. The plant hydroponic cultivation apparatus according to Item 1, wherein the water level is a water level at which the second liquid does not infiltrate into the storage container.

(Item 3)
The plant hydroponic cultivation apparatus according to Item 1 or 2, wherein the first liquid supply mechanism is configured to supply the first liquid from the bottom surface of the storage container.

(Item 4)
The plant hydroponic cultivation according to any one of Items 1 to 3, wherein the second liquid supply mechanism is configured to supply the second gas and liquid from a position higher than the supply position of the first liquid. apparatus.

(Item 5)
Any of the items 1 to 4, wherein the first liquid is a first gas-liquid in which a first gas is mixed in the liquid, and the second liquid is a second gas-liquid in which a second gas is mixed in the liquid The plant hydroponic cultivation apparatus according to any one of the preceding claims.

(Item 6)
The plant hydroponic cultivation apparatus according to item 5, wherein the first gas is oxygen or ozone.

(Item 7)
The plant hydroponic cultivation apparatus according to Item 5 or 6, wherein the second gas is carbon dioxide.

(Item 8)
The plant hydroponic cultivation apparatus of any one of the items 5-7 whose said 1st gas and / or 2nd gas are the states of a micro bubble.

(Item 9)
The plant hydroponic cultivation apparatus of any one of the items 5-7 whose said 1st gas and / or 2nd gas are the states of a nano bubble.

(Item 10)
The plant hydroponic cultivation apparatus of any one of items 1-9 provided with the liquid supply mechanism control part which controls so that the said 1st liquid supply mechanism and the said 2nd liquid supply mechanism may be driven exclusively.

(Item 11)
11. The plant hydroponic cultivation apparatus according to any one of Items 1 to 10, wherein the first liquid supply mechanism includes a first gas-liquid control unit that selects a first gas from oxygen or ozone.

(Item 12)
The plant hydroponic cultivation apparatus of any one of the items 1-11 provided with the sensor for detecting the state of a plant.

(Item 13)
The plant hydroponic cultivation apparatus according to any one of items 1 to 12, wherein the storage container includes a first opening corresponding to the first water level and a second opening corresponding to the second water level. .

(Item 14)
The plant hydroponic cultivation apparatus according to Item 13, wherein the first opening is provided at a position higher than the second opening.

(Item 15)
A container for containing the plant;
The plant hydroponic cultivation system provided with the plant hydroponic cultivation apparatus of any one of items 1-14.

(Item 16)
It is a cultivation method of a plant, and
The cultivation method including the process of cultivating a plant using the plant hydroponic cultivation apparatus of any one of item 1-14, or the plant hydroponic cultivation system of item 15.

  According to the present invention, a simple and more efficient plant hydroponic cultivation apparatus, a plant hydroponic cultivation system and a cultivation method are realized.

FIG. 1 is a block diagram for explaining the configuration of a plant hydroponic cultivation system 1000 according to a first embodiment of the present invention. FIG. 2 is a perspective view showing the appearance of the plant hydroponic cultivation system 1000 shown in FIG. FIG. 3 is a perspective view showing the storage container 100a disposed in the storage container 101 by seeing through the storage container 101 of the plant hydroponic cultivation apparatus 100 shown in FIG. FIG. 4 is a plan view of the plant hydroponic cultivation system 1000 shown in FIG. 2, and FIGS. 4 (a) and 4 (b) respectively show the plant hydroponic culture system 1000 shown in FIG. It shows the structure seen from the point of view. FIG. 5 is a view for explaining the storage container 100a shown in FIG. 4, FIG. 5 (a) is a perspective view showing the storage container 100a, and FIG. 5 (b) is a view shown in FIG. The structure which looked at the storage container 100a shown from the B5 direction is shown, and FIG.5 (c) and FIG.5 (d) respectively see through the storage container 100a shown to FIG. 5 (a) and FIG.5 (b), and a storage container The arrangement of cultivation units 120 within 100a is shown. 6 is a view for explaining the storage tray 110 in the storage container 100a shown in FIG. 5 (a), and FIG. 6 (a) is a perspective view showing the storage tray 110, and FIG. 6 (b) is 6 (a) shows a structure of the storage tray 110 seen from the B6 direction, and FIG. 6 (c) shows a structure of a cross section taken along line C-C in FIG. 6 (a). Fig. 7 is a view for explaining the cultivation unit 120 in the storage container 100a shown in Fig. 5 (a), Fig. 7 (a) is a perspective view showing the cultivation unit 120, and Fig. 7 (b) 7 (a) shows a structure of the cultivation unit 120 seen from the B7 direction, and FIG. 7 (c) shows a structure of a cross section taken along line C7-C7 of FIG. 7 (a), and FIG. 7 (d) is The structure which looked at the cultivation unit 120 shown to Fig.7 (a) from D7 direction is shown. FIG. 8 is a figure for demonstrating the usage method of the plant hydroponic cultivation system 1000 shown in FIG. 2, and shows a mode that the storage container 100a is assembled. FIG. 9 is a view for explaining the method of using the plant hydroponic cultivation system 1000 shown in FIG. 2, and shows a state in which the storage container 100 a is arranged in the storage container 101 of the plant hydroponic cultivation apparatus 100. 10 is a figure for demonstrating the standby state (state before supplying a liquid) of the plant hydroponic cultivation system 1000 shown in FIG. 2, and FIG. 10 (a) and FIG.10 (b) are respectively figures. The structure of the XX cross section and YY cross section of 4 (a) is shown. FIG. 11 is a diagram for explaining the operating state of the plant hydroponic cultivation system 1000 shown in FIG. 2 (the state in which the water W is supplied to the storage container 101), and FIGS. 11 (a) and 11 (b) 4A and 4B respectively show a cross section taken along line X-X and a cross section taken along line Y-Y in FIG. FIG. 12 is a diagram showing how water W supplied to the storage container 101 of the plant hydroponic cultivation apparatus 100 flows into the inside of the storage tray 110, and FIG. 12 (a) and FIG. 12 (b) are diagrams respectively. 4 shows an X-X line cross section and a Y-Y line cross section of 4 (a). FIG. 13 is a figure for demonstrating the state which the flow of the water from the storage container 101 of the plant hydroponic cultivation apparatus 100 to the accommodation tray 110 stopped, FIG. 13 (a) and FIG.13 (b) are respectively The XX cross section and YY cross section of FIG. 4 (a) are shown. FIG. 14 is a figure for demonstrating the working state (state which carbonated water is supplied to the container main body 101) of the plant hydroponic cultivation system 1000 shown in FIG. 2, FIG. 14 (a) and FIG. 4A and 4B respectively show the structure of the cross section taken along line X-X and the cross section taken along line Y-Y in FIG.

  The invention will now be described, by way of example, with reference to the accompanying drawings, where necessary. Throughout the specification, it is to be understood that the singular form also includes the concepts of the plural, unless specifically stated otherwise. In addition, it is to be understood that the terms used in the present specification are used in the meanings commonly used in the art unless otherwise stated. Thus, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

(Definition)
As used herein, “microbubbles” generally refer to cells having a cell diameter of about 1 to 50 μm or less.

  As used herein, "nanobubbles" generally refers to cells having a cell diameter of less than about 1 μm in diameter.

(Reserved container)
The storage container of the present invention may be any container that accommodates a plant storage container and can store a liquid supplied to a plant to be grown. The reservoir is typically a top open container, and the shape and size of the container may be any shape and size. For example, the shape of the storage container of the present invention may be rectangular or cylindrical. In one preferred embodiment, the shape and size of the installation site to be cultivated are combined. The storage container of the present invention may be of any material. For example, a metal such as a stainless steel plate may be used, or a resin made of a resin such as acrylic may be used. For example, although it is preferable to use a stainless steel plate from the viewpoint of corrosion resistance, ease of processing, etc., the present invention is not limited thereto.

  The reservoir of the present invention may comprise any discharge mechanism for discharging the stored liquid. The discharge mechanism may be an opening provided at the bottom of the storage container, or may be a device such as a pump that actively discharges the liquid.

(Liquid supply mechanism)
The apparatus of the present invention includes any mechanism that provides a first liquid at a first water level and a second liquid at a second water level.

  In a representative embodiment, the apparatus of the present invention includes a first liquid supply mechanism for supplying a first liquid at a first water level and a second liquid supply mechanism for supplying a second liquid at a second water level.

  The first liquid may be a first gas-liquid mixed with a first gas. This first gas may be any gas that is suitable for penetration from the roots of plants. For example, it may be oxygen necessary for respiration of a plant, nitrogen as an element of fertilizer of a plant, or ozone suitable for exerting a bactericidal effect of a plant, oxygen and It may be air containing nitrogen. The liquid is typically water.

  In one embodiment, the first liquid supply mechanism stores both water mixed with oxygen (referred to as "oxygen water") and water mixed with ozone (referred to as "ozone water") in the storage container. It can be supplied. Oxygen is preferred for plant growth and ozone is preferred for plant sterilization. As described above, the first liquid supply mechanism separately supplies oxygen water and ozone water because oxygen and ozone have different purposes and applications, but the present invention is not limited thereto. The switching between the oxygen water and the ozone water of the first liquid supplied by the first liquid supply mechanism may be performed manually, or may be performed automatically by any sensor or timer. The sensor in the first fluid mechanism can typically detect plant diseases and the presence of pathogens in roots.

  In one embodiment, the first liquid supply mechanism may adjust the oxygen concentration of the supplied oxygen water according to the oxygen concentration measured by the oxygen concentration meter. The oximeter may be a device known in the art. Since the oxygen concentration meter can be adjusted to the desired oxygen concentration of the oxygen water supplied by the liquid supply mechanism based on the measurement result obtained by having the oxygen concentration meter, the device of the present invention is an oxygen concentration meter. It is preferable to have

  In one embodiment, the first liquid supply mechanism may adjust the ozone concentration of the supplied ozone water according to the ozone concentration measured by the ozone concentration meter. This ozone concentration meter may be a device known in the art. In a representative embodiment, the ozone concentration meter is a device that vaporizes ozone contained in the generated ozone water by vacuum and measures the concentration. By having an ozone concentration measuring device, adjustment of the ozone water supplied by the liquid supply mechanism to a desired ozone concentration becomes possible based on the obtained measurement result, and therefore the device of the present invention is an ozone concentration measuring device. It is preferable to have

  In a preferred embodiment, in the first gas-liquid, the first gas is mixed with the first liquid in the form of microbubbles, and more preferably, the first gas is mixed with the first liquid in the form of nanobubbles. By making the particle size of the first gas mixed into the first liquid smaller, absorption of the first gas (typically oxygen) from the plant roots is promoted and / or the first gas (typically) is removed. In particular, the bactericidal action of pathogens by ozone) can be enhanced. In addition, microbubbles or nanobubbles contained in oxygen water or ozone water generate active oxygen at the moment they are crushed in the storage container, and a bactericidal effect thereby can be expected.

  In the embodiment where the first gas is mixed with the first liquid in the form of microbubbles or nanobubbles, it is preferable to maintain the state of the bubbles until the first gas comes in contact with the roots of the plant. It is preferred to supply the first liquid. By supplying from the bottom, the bubbles that were dissolved by the impact when the first liquid landed on the storage container when supplied into the storage container were broken or the air was caught in the air and large bubbles were generated By doing this, it becomes possible to suppress the fine bubbles (micro bubbles and nano bubbles) from rising and disappearing on the water surface. In addition, the supply port for supplying the first liquid to the storage container has a large opening (for example, a diameter of about 10 mm to about 25 mm), and water pressure (for example, about 0.01 MPa to about 0. It is further preferred to lower 1 MPa) or to reduce the water pressure via a closed vessel. By doing this, when the first liquid is supplied at a high water pressure (for example, about 0.3 MPa or more) at a small opening (for example, about 1 mm in diameter), fine bubbles (micro It is because it becomes possible to control breakage of a bubble and a nano bubble).

  In addition, the first liquid may contain, in addition to the first gas, any nutrient which is absorbed from the roots of the plant to promote the growth of the plant.

  The second liquid may be a second gas-liquid mixed with a second gas. This second gas may be carbon dioxide necessary for photosynthesis of plants. The liquid is typically water. In an exemplary embodiment, the second liquid supply mechanism of the present invention may supply water mixed with carbon dioxide (referred to as "carbonated water").

  In a preferred embodiment, in the second gas-liquid as well as the first gas-liquid, the second gas is mixed with the second liquid in the form of microbubbles, and more preferably, the second gas is in the form of nanobubbles It is mixed in 2 liquids. When the second gas-liquid is carbonated water, the smaller the particle size of the bubble is supplied, the more quickly it is not released upon contact with air, and carbon dioxide is gradually generated from the carbonated water. Therefore, carbon dioxide can be supplied little by little and stably over a long period of time around the plants to be grown. In the past, plant cultivation devices that direct carbon dioxide directly to plants or spray carbonated water toward plants in a spray form (mist form) are known, but in comparison with such conventional plant cultivation apparatuses Thus, it can be an advantage of the present invention that the carbon dioxide is supplied gradually and stably little by little over the plant to be grown for a long period of time.

  Unlike the first gas-liquid (for example, oxygen water and / or ozone water), the second gas-liquid (for example, carbonated water) starts to be released toward the surrounding of the plant simultaneously with the supply to the storage container. The bubble may be impacted when it is supplied to the storage container. In the embodiment where carbon dioxide is present as microbubbles or nanobubbles, it is preferable to drop, discharge or release carbonated water so that the bubbles are impacted when supplied to the storage container and carbon dioxide is released from the water. . Therefore, in one specific embodiment, the supply port for the second gas / liquid by the second gas / liquid supply mechanism is located higher than the supply port for the first gas / liquid by the first gas / liquid supply mechanism.

  In a preferred embodiment, the second gas and liquid supply mechanism may supply non-floating droplets to the reservoir. In the case of a spray or mist floating in the air, carbon dioxide contained in the liquid will be released from the liquid as soon as the second gas / liquid comes in contact with the air, but carbon dioxide will be released by making it a non-floating droplet. Premature release is suppressed. Therefore, even if the droplet is exposed to the atmosphere, the carbon dioxide contained therein is released slowly without being released immediately. The present invention contemplates providing carbon dioxide to plants stably for an extended period of time by thus releasing carbon dioxide slowly from carbonated water. The second gas-liquid supply mechanism may further include a heating means for raising the temperature of the carbonated water. By raising the temperature of the carbonated water by the heating means, it becomes possible to accelerate the vaporization of carbon dioxide from the carbonated water. The heating means may be any means capable of warming the second liquid. For example, in one embodiment, there is a heating means that gradually raises the temperature of the second liquid using heat generated by a pump that delivers the second liquid.

Switching of the supply start / stop of the carbonated water, which is the second liquid, by the second liquid supply mechanism may be performed manually, or may be performed automatically by any sensor or timer. The sensor in the second fluid mechanism may typically be an illuminance sensor that measures solar radiation in a plant hydroponic cultivation apparatus, a CO ₂ sensor that measures carbon dioxide concentration, or the like. In a representative embodiment, for example, the supply of carbonated water may be controlled to be performed for a time preset by a timer (for example, from 6 am to 3 pm). The concentration of carbon dioxide in the carbonated water supplied by the second liquid supply mechanism is not particularly limited, but the pH decreases as the carbon dioxide concentration increases. For example, the carbonated water concentration is about 1000 ppm and pH is about 4.5.

  The liquid supply mechanism of the present invention can supply the first liquid and the second liquid at different water levels (the first liquid at the first water level and the second liquid at the second water level). In a preferred embodiment of the present invention in which the first liquid is oxygenated water and / or ozone water and the second liquid is carbonated water, the first liquid is preferably in contact with the root of a plant, and the second liquid is a plant It is preferable not to contact the roots of Carbonated water prevents the roots of plants from absorbing oxygen etc., and there is a risk that it may cause damage such as root rot. Thus, in a preferred embodiment, the first water level is such that the first liquid penetrates into the container containing the plants, and the second water level is contained within the container into which the second liquid contains the plants. It may be a water level that does not intrude.

  Adjustment of the first water level and the second water level may be achieved by providing the openings at positions not exceeding the water levels respectively, or the supply amount of the first liquid or the second liquid by the liquid supply mechanism may be adjusted. It may be achieved by adjusting. In a preferred embodiment, an opening for discharging the first liquid may be provided at a position corresponding to the first water level, and an opening for discharging the second liquid may be provided at a position corresponding to the second water level. . Typically, the first water level is located higher than the second water level, but is preferably not limited thereto.

  The first liquid supply mechanism and the second liquid supply mechanism may be driven exclusively. This makes it possible to avoid the mixing of the first liquid and the second liquid which are different liquids. Exclusive actuation of the two liquid supply mechanisms can be achieved by known control mechanisms.

(Plant container)
The container which accommodates the plant of this invention is any container which can be used for hydroponic cultivation, and as long as it can accommodate at least the root of a plant inside, it may be anything. The plant storage container of the present invention is typically a container whose top surface is open. The shape and size of the container may be of any shape and size. For example, the shape of the storage container of the present invention may be a rectangular parallelepiped shape or a cylindrical body shape. In one preferred embodiment, the shape and size of the storage container are the shape and size of the plant to be stored, and the shape and size of the storage container for storing the storage container.

  Also, the storage container may be a single layer container, or a multiple container including an outer container storing the first liquid and an inner container stored in the outer container and supporting the root of the plant, It is also good. It is preferable to use a multi-container including an outer container and an inner container from the viewpoint of ensuring air permeability to the roots of plants to prevent root rot and making it possible to adjust the water level of the first liquid to the plants. In the case of multiple containers, the bottom of the inner container is provided with a liquid inlet for supplying the first liquid stored in the outer container to the root of the plant. In addition, the inner container may be fixed to the outer container or may be removable. It is preferable to make the inner container attachable to and detachable from the outer container from the viewpoint of, for example, easy rooting operation of plants. One outer container may store one inner container, or one outer container may store a plurality of inner containers.

  It is preferable that the storage container of this invention is equipped with the water level adjustment means of the 1st liquid with respect to a plant. The water level adjusting means typically adjusts the relative height of the inner container with respect to the outer container to position the relationship between the plant contained in the inner container and the first liquid stored in the outer container. Can be adjusted. Water level adjustment means include, but are not limited to, protrusions or outer containers that define the height of the plant and spacers separate from the inner container. The water level adjusting means may be provided on the upper surface of the outer container and / or on the lower surface of the inner container. By providing such a water level adjusting means, it is possible to arrange the height of the plant at an appropriate position with respect to the water level of the first liquid. Furthermore, the outer container may be provided with a discharge hole for discharging the first liquid stored in the outer container. The container of the present invention may be of any material. For example, a metal such as a stainless steel plate may be used, or a resin made of a resin such as acrylic may be used. For example, although it is preferable to use a resin in terms of corrosion resistance and light weight, the present invention is not limited thereto.

(Liquid discharge / circulation mechanism)
The device according to the present invention comprises any mechanism for discharging the first liquid supplied to the storage container (including the storage container) by the first liquid supply mechanism and the second liquid supplied to the storage container by the second liquid supply mechanism. Including. The discharge of the first liquid and the discharge of the second liquid may be performed by the same mechanism or by different mechanisms. The mechanism for discharging the first liquid and the second liquid includes, but is not limited to, an opening at the bottom, a liquid suction pump, and the like.

  In a preferred embodiment, the discharged first liquid and second liquid can be circulated to the first liquid supply mechanism and the second liquid supply mechanism, respectively, to recycle the discharged liquid. For this purpose, it may be preferable to discharge the first liquid and the second liquid by separate mechanisms.

  The first liquid discharged from the first liquid discharge mechanism and the second liquid discharged from the second liquid discharge mechanism are respectively returned to the first liquid supply mechanism and the second liquid supply mechanism so as to be reusable. It may be discharged to the outside of the plant hydroponic culture system.

  As described above, the present invention further provides an opening for discharging the first liquid at a position corresponding to the first water level, and provides an opening for discharging the second liquid at a position corresponding to the second water level. May be By providing these openings, it is possible to discharge the first liquid supplied above the first water level and the second liquid supplied above the second water level, and the intended adjustment of the water level is achieved. .

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a block diagram for explaining the configuration of a plant hydroponic cultivation system 1000 according to a first embodiment of the present invention. The inventor has named the plant hydroponic cultivation system 1000 shown in FIG. 1 as “a multi-stage fine bubble cultivation system”.

  The plant hydroponic cultivation system 1000 of Embodiment 1 has the accommodation container 100a which accommodates a plant, and the plant hydroponic cultivation apparatus 100 which hydroponic-cultures the plant accommodated in the accommodation container 100a.

  The plant hydroponic cultivation apparatus 100 includes a storage container 101 for storing liquids such as oxygen water W, ozone water Ow, carbonated water Sw, and a first liquid supply mechanism that provides the storage container 101 with a first liquid at a first water level. M1 and a second liquid supply mechanism M2 that provides the storage container 101 with the second liquid at the second water level.

  The first liquid supply mechanism M1 mixes the first gas generated by the first gas generation unit 13 for generating the first gas and the first gas generated from the first gas generation unit 13 with water (liquid) supplied from the outside. It has a first liquid generation unit 12 that generates a liquid, a first liquid tank 11 that stores the first liquid, and a water supply unit 10 that supplies the first liquid collected in the first liquid tank 11 to the storage container 101.

  In the present embodiment, the first gas is oxygen or ozone, and the first liquid is oxygen water or oxygen-containing water of ozone water, but the present invention is not limited thereto. Here, the first liquid recovered from the storage container 101 and the oxygen water W or the ozone water supplied from the first liquid generation unit (oxygen-containing water generation unit) 12 to the first liquid tank (oxygen-containing water tank) 11 Ow is stored, and oxygen water W or ozone water Ow is circulated between the first liquid tank 11 and the first liquid generator 12.

  The second liquid supply mechanism M2 includes a second liquid supply unit 20 that supplies the second liquid to the storage container 101. Furthermore, the second liquid supply mechanism M2 may have a second liquid tank 21 for storing the second liquid recovered from the storage container 101. In this embodiment, although the case where it is carbon dioxide as the 2nd gas and the 2nd liquid is used as carbonated water is explained, it is not limited to this. Here, the carbonated water collected from the storage container 101 and accumulated in the second liquid tank 21 (carbonated water tank) may be returned to the second liquid supply unit (carbonated water supply unit) 20 for circulation use. By circulating it, the carbonated water in which the carbon dioxide gas is dissolved can be used effectively.

  Furthermore, the plant hydroponic cultivation apparatus 100 has an operation unit 30 for operating the first liquid supply mechanism M1 and the second liquid supply mechanism M2, and the first gas generation unit 13 generates a first liquid from the operation unit 30. Operation signals C13, C12, C10, and C20 for operating the unit 12, the water supply unit 10, and the second liquid supply unit 20 are output.

  Furthermore, the storage container 101 is configured to be able to arrange the storage container 100 a in the storage container 101, and the storage container 100 a is a storage container 101 in a plant stored in the storage container 100 a arranged in the storage container 101. The liquid to be provided is configured to be supplied as a liquid or as a gas.

  Note that the storage container 101 may be provided with a water level detection sensor for detecting the water level of various liquids, in which case oxygen water W or ozone water Ow by the water supply unit 10 is used based on the output signal of the water level detection sensor. It is preferable to configure the plant hydroponic cultivation apparatus 100 such that the supply of certain oxygen-containing water to the storage container 101 and the supply of carbonated water Sw by the second liquid supply unit 20 to the storage container 101 are controlled.

  Hereinafter, the specific structure of the plant hydroponic cultivation system 1000 is demonstrated.

  2 to 4 are diagrams for explaining the specific configuration of the plant hydroponic cultivation system 1000 shown in FIG. 1, and FIG. 2 is a perspective view showing the appearance of the plant hydroponic cultivation system 1000, FIG. 2 is a perspective view showing a storage container 100a disposed inside the storage container 101 by seeing through the storage container 101 of the plant hydroponic cultivation apparatus 100, and FIG. 4 (a) and FIG. 4 (b) are respectively FIG. It is a top view which shows the structure which looked at the plant hydroponic cultivation system 1000 shown to these from the A2 direction and B2 direction.

  The storage container 101 is supported by the container leg portion 101a at a fixed height from the floor surface. A carbonated water supply pipe 103 is attached to the storage container 101 along opposing side walls extending in the longitudinal direction, and one end of the carbonated water supply pipe 103 is connected to the carbonated water supply unit 20 through a connection hose H1. It is done. In the carbonated water supply unit 20, a carbonic acid mixer that mixes carbon dioxide gas with water to generate carbonated water Sw is used. The carbon dioxide mixer may be provided with a micro-bubble generator. The microbubble generator may be any device that generates microbubbles (microbubbles and / or nanobubbles). By setting the gas contained in the carbonated water to a fine bubble state, it is possible to slowly and stably supply carbon dioxide little by little to the periphery of the plant to be grown over a long period of time. Furthermore, the carbonated water tank 21 is disposed below the end of the storage container 101 on the side where the carbonic acid mixer is disposed, and the carbonated water Sw is stored in the storage container 101 from the inside of the storage container 101. A first carbonated water discharge pipe 105a, which is a first second liquid discharge unit for discharging to the carbonated water tank 21, and a second carbonated water discharge pipe 105b, which is a second second liquid discharge unit, are connected. There is. The first carbonated water discharge pipe 105a and the second carbonated water discharge pipe 105b constitute a second liquid discharge mechanism.

  Here, the open end of the first carbonated water discharge pipe 105a connected to the storage container 101 matches the bottom of the storage container 101, and is connected to the storage container 101 of the second carbonated water discharge pipe 105b. The open end protrudes to a position higher than the bottom surface of the storage container 101 by a predetermined size. A first on-off valve 105a1 and a second on-off valve 105b1 are attached to the first carbonated water discharge pipe 105a and the second carbonated water discharge pipe 105b, respectively. Therefore, by opening the first on-off valve 105a1, the first carbonated water discharge pipe 105a functions as a drain pipe for extracting the carbonated water Sw from the storage container 101, and the first on-off valve 105a1 is closed. The second carbonated water discharge pipe 105b keeps the water level of the carbonated water Sw in the storage container 101 constant by opening the second on-off valve 105b1 (one end of the second carbonated water discharge pipe 105b is the storage container 101). Functions as an overflow pipe that limits the height of the bottom of the The first on-off valve 105a1 and the second on-off valve 105b may be an electric on-off valve such as a solenoid valve or a manual on-off valve.

  Furthermore, a carbon water discharge filter 105c may be attached to the end of the first carbonated water discharge pipe 105a and the second carbonated water discharge pipe 105b on the carbonated water tank 21 side to remove foreign matters such as leaves and dust.

  Further, a water pipe 102 connected to the water supply unit 10 is attached to the lower side of the bottom of the storage container 101. Here, the water supply pipe 102 is a water supply trunk pipe 102 a extending along the longitudinal direction of the storage container 101, and a liquid inflow hole 101 b formed in the water supply trunk pipe 102 a and the bottom of the storage container 101 (see FIG. ), A water supply connection pipe 102b for connecting the water supply trunk pipe 102a to the water supply pump which is the water supply unit 10, and a water supply connection pipe 102b connected to the water supply trunk pipe 102a. One end of the water supply connection pipe 102b is connected to the water supply trunk pipe 102a, and the other end of the water supply connection pipe 102b is connected to the discharge pipe 10a of the water supply pump via a connection hose H2. The water supply connection pipe 102b is provided with an opening and closing valve 102b1, and the discharge pipe 10a of the water supply pump is provided with an opening and closing valve 10a1.

  An oxygen-containing water tank 11 is disposed under the end of the storage container 101 opposite to the end where the carbonic acid mixer is disposed, and the storage container 101 is a storage container. In the first oxygen-containing water discharge pipe 104 a and the second first liquid discharge part, which are the first first liquid discharge parts for discharging the oxygen water W or the ozone water Ow into the oxygen-containing water tank 11 from within 101 One second oxygen-containing water discharge pipe 104b is connected. A first liquid discharge mechanism is constituted by the first oxygen-containing water discharge pipe 104a and the second oxygen-containing water discharge pipe 104b.

  Here, the open end of the first oxygen-containing water discharge pipe 104a connected to the storage container 101 matches the bottom surface of the storage container 101, and is connected to the storage container 101 of the second oxygen-containing water discharge pipe 104b. The opened end protrudes to a position higher than the bottom surface of the storage container 101 by a predetermined size. A first on-off valve 104a1 and a second on-off valve 104b1 are attached to the first oxygen-containing water discharge pipe 104a and the second oxygen-containing water discharge pipe 104b, respectively.

  Therefore, by opening the first on-off valve 104a1, the first ozone water discharge pipe 104a functions as a drain pipe for extracting the oxygen water W or the ozone water Ow from the storage container 101, and the first on-off valve 104a1 By closing the second on-off valve 104b1, the second oxygen-containing water discharge pipe 104b keeps the water level of the oxygen water W or the ozone water Ow in the storage container 101 constant to a certain height (second oxygen content The water discharge pipe 104 b functions as an overflow pipe that limits one end of the water discharge pipe 104 b to a height protruding from the bottom surface of the storage container 101. The first on-off valve 104a1 and the second on-off valve 104b1 may be an electric on-off valve such as a solenoid valve or a manual on-off valve.

  Furthermore, an oxygen-containing water discharge filter 104c for removing foreign matters such as leaves and dust is attached to the end of the first oxygen-containing water discharge pipe 104a and the second oxygen-containing water discharge pipe 104b on the oxygen-containing water tank 11 side. May be

  The oxygen-containing water suction pipe 11a and the oxygen-containing water discharge pipe 11b are attached to the oxygen-containing water tank 11, and the oxygen-containing water discharge pipe 11b is connected to the water absorption pipe 10b of the water pump 10 by a connection hose H3. There is. The oxygen-containing water suction pipe 11 a of the oxygen-containing water tank 11 is connected to the oxygen-containing water discharge pipe 12 b of the oxygen-containing water generator 12 by a connection hose H4. An open / close valve 11a1 and an open / close valve 11b1 are provided in the oxygen-containing water suction pipe 11a and the oxygen-containing water discharge pipe 11b, respectively. In the oxygen-containing water tank 11, a micro-bubble generator 11c may be provided. The micro-bubble generator 11c may be any device that generates micro-bubbles (micro bubbles and / or nano bubbles). Oxygen water W or ozone water Ow containing the fine bubbles (microbubbles and / or nanobubbles) generated by the microbubble generator 11c is connected to the oxygen-containing water recovery pipe 12a of the oxygen-containing water generation unit 12 by the connection hose H5 ing. The oxygen gas Og and the ozone gas are supplied from the oxygen generating unit 13 to the oxygen-containing water generating unit 12.

  Here, the position of the open end of the second oxygen-containing water discharge pipe 104b connected to the storage container 101, that is, the height from the bottom of the storage container 101 is the storage container 101 of the second carbonated water discharge pipe 105b. And the height from the bottom of the storage container 101.

  Thereby, the water level of the oxygen water W or the ozone water Ow supplied to the storage container 101 may be higher than the water level of the carbonated water Sw supplied to the storage container 101.

[Container 100a]
FIG. 5 is a view for explaining the storage container 100a shown in FIG. 4, FIG. 5 (a) is a perspective view showing the storage container 100a, and FIG. 5 (b) is a view shown in FIG. The structure which looked at the storage container 100a shown from the B5 direction is shown, and FIG.5 (c) and FIG.5 (d) respectively see through the storage container 100a shown to FIG. 5 (a) and FIG.5 (b), and a storage container The placement of the cup 122 within 100a is shown.

  The storage container 100a has a cultivation unit 120 (inner container) having a plurality of cup-like bodies 122, and a storage tray 110 (outer container) on which the cultivation unit 120 is placed. By placing the cultivation unit 120 on the accommodation tray 110 so that the cultivation unit 120 is accommodated in the accommodation tray 110, the accommodation container 100a for supplying a liquid to the accommodated plant is formed.

[Containing tray 110]
6 is a view for explaining the storage tray 110 in the storage container 100a shown in FIG. 5 (a), and FIG. 6 (a) is a perspective view showing the storage tray 110, and FIG. 6 (b) is 6 (a) shows a structure of the storage tray 110 seen from the B6 direction, and FIG. 6 (c) shows a structure of a cross section taken along the line C-C of FIG.

  The storage tray 110 has a side wall portion 112, a bottom surface portion 111 formed at the lower end of the side wall portion 112, and a flange portion 113 formed at the upper end edge of the side wall portion 112. It is an opening for taking the unit 120 into and out of the storage tray 110. The storage tray 110 is configured such that the first liquid is accumulated therein to a certain depth.

  The height of the side wall portion 112 of the storage tray 110 is higher than the height at which one end of the second carbonated water discharge pipe 105b protrudes from the bottom surface of the storage container 101, and one end of the second oxygen-containing water discharge pipe 104b The height is smaller than the height projecting from the bottom of the storage container 101. Thus, when the carbonated water Sw is supplied to the storage container 101, when the second carbonated water discharge pipe 105b functions as an overflow pipe, the carbonated water Sw exceeds the side wall portion 112 of the storage tray 110 and the storage tray 110 The carbonated water Sw can be maintained at a constant water level around the storage tray 110 while avoiding entering the inside.

  When the oxygen water W or the ozone water Ow is supplied to the storage container 101, the oxygen water W or the ozone water supplied to the storage container 101 when the second oxygen-containing water discharge pipe 104b functions as an overflow pipe. Ow can penetrate into the storage tray 110 beyond the side wall portion 112 of the storage tray 110.

  Even when the storage tray 110 is completely submerged in the oxygen water W or the ozone water Ow, the second oxygen-containing water discharge pipe 104b functions as an overflow pipe, so the oxygen water W or the ozone water Ow is discharged from the storage container 101. There is no overflow.

[Cultivation unit 120]
Fig. 7 is a view for explaining the cultivation unit 120 in the storage container 100a shown in Fig. 5 (a), Fig. 7 (a) is a perspective view showing the cultivation unit 120, and Fig. 7 (b) 7 (a) shows a structure of the cultivation unit 120 seen from the B7 direction, and FIG. 7 (c) shows a structure of a cross section taken along line C7-C7 of FIG. 7 (a), and FIG. 7 (d) is The structure which looked at the cultivation unit 120 shown to Fig.7 (a) from D7 direction is shown.

  A plurality of openings 121a are formed in the plate-like body 121 constituting the cultivation unit 120 so as to be aligned in the vertical and horizontal directions, and a cup-like body 122 is provided below the plate-like body 121 at a position corresponding to the plurality of openings 121a. Is attached, and the inside of the cup-like body 122 is a plant cultivation part 123. In the embodiment shown in FIG. 7, the size of the cultivation unit is illustrated as being large enough to accommodate a plurality of cup-like bodies, but is not limited thereto. For example, the size of the cultivation unit may be set to a size that can accommodate one cup-shaped body. A liquid introduction hole 122 a for introducing a first liquid (for example, oxygen water W or ozone water Ow) into the inside of the cup-like body 122 is formed in the bottom of the cup-like body 122.

  In the state where the cultivation unit 120 is placed on the accommodation tray 110, the cultivation unit 120 is such that the first liquid accumulated in the accommodation tray 110 is introduced from the liquid introduction hole 122 a of the cup-like body 122 into the plant cultivation unit 123. It is configured.

[How to use plant hydroponic cultivation system 1000]
8 and 9 are diagrams for explaining the method of using the plant hydroponic cultivation system 1000 shown in FIG. 2, FIG. 8 shows an operation of assembling the storage container 100a, and FIG. 9 shows the storage container 100a. An operation of arranging in the storage container 101 of the plant hydroponic cultivation apparatus 100 is shown.

  First, the plant cultivation unit 123 of the cultivation unit 120 accommodates, for example, roots, stems, or seedlings of plants to be cultivated such as strawberries and tomatoes.

  Next, as shown in FIG. 8, the storage container 100 a is assembled by placing the cultivation unit 120 on the storage tray 110 so that the plurality of cups 122 of the cultivation unit 120 are stored in the storage tray 110. .

  Then, as shown in FIG. 9, the storage container 100a is arrange | positioned at fixed intervals on the bottom face of the storage container 101 of the plant hydroponic cultivation apparatus 100. As shown in FIG.

  As a result, the plant hydroponic cultivation system 1000 enables a plant to be grown (standby state).

[Operation of plant hydroponic cultivation system 1000]
FIG. 10 is a diagram showing the standby state (the state before supplying the liquid) of the plant hydroponic cultivation system 1000 shown in FIG. 2, and FIG. 10 (a) and FIG. 10 (b) are respectively FIG. X-ray section and YY line section of

  In the standby state of the plant hydroponic cultivation system 1000, as shown in FIG. 10, no liquid is supplied to the storage container 101 of the plant hydroponic cultivation apparatus 100.

  When oxygen water is supplied to the storage container 101 as the first liquid from the first liquid supply mechanism M1, in this standby state, the opening and closing valve 105a1 of the first carbonated water discharge pipe 105a and the opening and closing of the second carbonated water discharge pipe 105b The valve 105b1 is closed, the on-off valve 104a1 of the first oxygen-containing water discharge pipe 104a is closed, and the on-off valve 104b1 of the second oxygen-containing water discharge pipe 104b is opened.

  Thereafter, when the operator operates the operation unit 30 so that oxygen water is supplied to the storage container 101 as the first liquid from the first liquid supply mechanism M1, the oxygen-containing water generation unit 12 operates to generate oxygen in water. Is supplied to the oxygen-containing water tank 11, and the oxygen water is accumulated in the oxygen-containing water tank 11.

  When the oxygen water accumulated in the oxygen-containing water tank 11 is sent out to the water supply pipe 102 by the water supply unit 10, the oxygen water W passes through the water supply pipe 102 to form a liquid inflow hole 101b formed in the bottom of the storage container 101 (FIG. 9). ) To the inside of the storage container 101. As a result, the oxygen water W flows into the storage container 101 from the liquid inflow hole 101 b, and the water level of the oxygen water accumulated in the storage container 101 gradually rises.

  FIG. 11 is a view for explaining the operating state of the plant hydroponic cultivation system 1000 shown in FIG. 2 (the state in which the oxygen water W is supplied to the storage container 101), and FIG. b) shows a cross section taken along line X-X and a cross section taken along line Y-Y of FIG.

  As shown in FIG. 11, until the water level of the oxygen water W supplied to the storage container 101 from the liquid inflow hole 101 b at the bottom of the storage container 101 reaches the height of the side wall portion 112 of the storage tray 110, the oxygen water is W does not enter inside the storage tray 110. Thereafter, when the water level of the oxygen water W supplied to the storage container 101 rises and exceeds the height of the side wall portion 112 of the storage tray 110, the oxygen water W supplied into the storage container 101 is the side wall portion 112 of the storage tray 110. Flow into the interior of the storage tray 110.

  FIG. 12 is a view showing how oxygen water W supplied to the storage container 101 of the plant hydroponic cultivation apparatus 100 flows into the inside of the storage tray 110, and FIG. 12 (a) and FIG. 12 (b) are respectively The XX cross section and YY cross section of FIG. 4 (a) are shown.

  As shown in FIG. 12A, when the water level of the oxygen water W supplied to the storage container 101 exceeds the height of the side wall portion 112 of the storage tray 110, it flows into the storage tray 110 and the inside of the storage tray 110. Oxygen water W is accumulated in the

  When the oxygen water W is accumulated in the storage tray 110, the oxygen water W infiltrates the plant cultivation unit 123 from the liquid introduction hole 122a of the cup-shaped body 122 of the cultivation unit 120 disposed in the accommodation tray 110. . Thereby, the oxygen water W is supplied to the plant accommodated in the cup-like body 122.

  When oxygen water W containing an amount of oxygen necessary for breathing a plant is accumulated in the storage tray 110, when the water supply unit 10 is stopped by the operation of the operator or the detection output of the water level detection sensor, the storage container 101 is stored The inflow of the oxygen water W into the tray 110 also stops.

  FIG. 13 is a figure for demonstrating the state which the flow of the oxygen water W from the storage container 101 of the plant hydroponic cultivation apparatus 100 to the accommodation tray 110 stopped, FIG. 13 (a) and FIG.13 (b) The X-X line section and the Y-Y line section of Drawing 4 (a) are shown, respectively.

  As shown in FIG. 13, when the water level of the oxygen water W accumulated in the storage container 101 falls below the height of the side wall of the storage tray 110 due to the stop of the water supply unit 10, the oxygen water W from the storage container 101 to the storage tray 110 is Inflow stops. Thereafter, the oxygen water W accumulated in the storage container 101 is discharged to the oxygen-containing water tank 11 through the first oxygen-containing water discharge pipe 104.

  Thereby, the plant hydroponic cultivation system 1000 will be in the standby state in which supply of the 2nd liquid to storage container 101 of the plant hydroponic cultivation apparatus 100 is possible, as shown in FIG.

  In this state, when the carbonated water Sw is supplied to the storage container 101, the opening / closing valves 104a1 and 104b1 of the first oxygen-containing water discharge pipe 104a and the second oxygen-containing water discharge pipe 104b are closed to discharge the first carbonated water. The on-off valve 105a1 of the pipe 105a is closed, and the on-off valve 105b1 of the second carbonated water discharge pipe 105b is opened. As a result, the water level of the carbonated water Sw collected in the storage container 101 is set to a water level corresponding to the height at which one end of the second carbonated water discharge pipe 105 b protrudes from the bottom surface of the storage container 101.

  Thereafter, when the operator operates the operation unit 30 so that the carbonated water Sw is supplied to the storage container 101 as the second liquid from the second liquid supply mechanism M2, the carbon mixer as the carbonated water supply unit 20 is activated. The carbonated water Sw is sent to the carbonated water supply pipe 103. As a result, the carbonated water Sw drops from a supply hole (not shown) formed in the carbonated water supply pipe 103 and is accumulated in the storage container 101.

  FIG. 14 is a figure for demonstrating the working state (state which carbonated water is supplied to the container main body 101) of the plant hydroponic cultivation system 1000 shown in FIG. 2, FIG. 14 (a) and FIG. 4A and 4B respectively show the structure of the cross section taken along line X-X and the cross section taken along line Y-Y in FIG.

  In the supply of the carbonated water Sw to the storage container 101, the first oxygen-containing water discharge pipe 104a, the second oxygen-containing water discharge pipe 104b, the first carbonated water discharge pipe 105a, and the second carbonated water lead to the storage container 101. Since only the open / close valve 105b1 of the second carbonated water discharge pipe 105b of the water discharge pipe 105b is open, one end of the second carbonated water discharge pipe 105b protrudes at a height at which it protrudes from the bottom of the storage container 101. Water level of water Sw is decided. In this case, the water level of the carbonated water Sw does not exceed the height of the side wall of the storage tray 110.

  Therefore, the carbonated water Sw is not supplied to the cultivation unit 120 over the accommodation tray 110 as shown in FIG. 14, and carbon dioxide evaporated around the accommodation tray 110 is accommodated in the plant cultivation unit 123 of the cultivation unit 120 Is absorbed from the leaves of the plant being Therefore, in the vicinity of the cultivation unit 120, the carbon dioxide concentration can be kept constant for a long time, and the photosynthesis of plants can be efficiently performed.

  When the photosynthesis time zone of the plant is over, the supply of carbonated water Sw by the carbonated water supply pipe 103 is stopped, and the open / close valve 105a1 of the first carbonated water discharge pipe 105a is opened, whereby the carbonic acid accumulated in the storage container 101 is accumulated. The water Sw is discharged to the carbonated water tank 21. Carbonated water Sw has the effect of sterilizing devices such as storage containers. As needed, you may supply carbonated water Sw, when disinfecting apparatuses, such as a storage container. When carbonated water is supplied for sterilization, the higher the carbon dioxide concentration, the higher the sterilization effect can be obtained, and therefore the carbon dioxide concentration may be increased.

  After that, when processing such as sterilization is performed according to the growth state of the plant, the ozone water Ow is supplied to the inside of the storage tray 110 by the first liquid supply mechanism M1.

  In this case, the operator opens the on-off valve 104b1 of the second oxygen-containing water discharge pipe 104b, and the on-off valve 104a1 of the first oxygen-containing water discharge pipe 104a, the on-off valve 105a1 of the first carbonated water discharge pipe 105a, And the on-off valve 105b1 of the second carbonated water discharge pipe 105b is closed. Thus, the water level of the ozone water Ow accumulated in the storage container 101 is set by the dimension in which one end of the second oxygen-containing water discharge pipe 104 b protrudes from the bottom surface of the storage container 101.

  Thereafter, when the operator operates the water supply unit 10 so that the first liquid supply mechanism M1 supplies the ozone water Ow to the inside of the storage tray 110, the oxygen-containing water generation unit 12 is activated with the oxygen generation unit 13 activated. By operating, the ozone water Ow is supplied to the oxygen-containing water tank 11, and the ozone water Ow is accumulated in the oxygen-containing water tank 11.

  When the ozone water Ow accumulated in the oxygen-containing water tank 11 is sent out to the water supply pipe 102 by the water supply unit 10, the ozone water Ow passes through the water supply pipe 102 to form a liquid inflow hole 101b formed in the bottom of the storage container 101 (see FIG. 9) is supplied to the inside of the storage container 101.

  In this case, as described in the supply of the oxygen water W, as shown in FIG. 11, the water level of the ozone water Ow supplied to the storage container 101 from the liquid inflow hole 101b at the bottom of the storage container 101 is the storage tray 110. The inner side of the storage tray 110 does not enter until the height of the side wall portion 112 is reached. Thereafter, when the water level of the ozone water Ow supplied to the storage container 101 rises and exceeds the height of the side wall portion 112 of the storage tray 110, the ozone water Ow supplied into the storage container 101 is the side wall portion 112 of the storage tray 110. Flow into the interior of the storage tray 110 and into the interior of the storage tray 110, and the ozone water Ow is accumulated inside the storage tray 110.

  When the ozone water Ow is accumulated inside the accommodation tray 110, the ozone water Ow enters the plant cultivation unit 123 from the liquid introduction hole 122a of the cup-shaped body 122 of the cultivation unit 120 disposed in the accommodation tray 110. . The ozone water Ow is supplied to the plant accommodated in the cup-like body 122 by this, and sterilization is performed. Besides the sterilization of plants, the ozone water Ow also exhibits the sterilization effect of devices such as storage containers. Instead of sterilizing plants, ozone water Ow may be supplied as needed when sterilizing a device such as a storage container.

  When ozone water Ow containing an amount of ozone necessary for sterilizing a plant accumulates in the storage tray 110, the water supply unit 10 is stopped by the operation of the operator or the detection output of the water level detection sensor. The inflow of water into 110 also stops.

  As shown in FIG. 13, when the water level of the ozone water accumulated in the storage container 101 falls below the height of the side wall of the storage tray 110 due to the stop of the water supply unit 10, the inflow of ozone water from the storage container 101 to the storage tray 110 occurs. Stop. Thereafter, when the operator opens the on-off valve 104a1 of the first oxygen-containing water discharge plug 104a, the ozone water accumulated in the storage container 101 is transferred to the oxygen-containing water tank 11 through the first oxygen-containing water discharge pipe 104a. Exhausted.

  Thereby, the plant hydroponic cultivation system 1000 will be in the standby state in which supply of the liquid to the storage container 101 of the plant hydroponic cultivation apparatus 100 is possible.

  In the embodiment, the opening and closing valves of the first oxygen-containing water discharge pipe 104a, the second oxygen-containing water discharge pipe 104b, the first carbonated water discharge pipe 105a, and the second carbonated water discharge pipe 105b are opened and closed. Although the case where the operator performs start and stop of the water supply unit 10 and the carbonated water supply unit 20 has been described, these operations are automatically performed based on the output of various sensors that detect the state of the timer or the plant. May be

  For example, a sensor for detecting the condition of a plant (for example, disease or poor growth) is provided, and ozone water Ow for sterilization is supplied to the plant based on the detection output by a control device mounted on the operation unit, A nutrient solution may be supplied.

  In addition, when the supply of the first liquid or the second liquid to the storage container 101 is automatically performed, the first liquid supply mechanism M1 and the second liquid supply mechanism M2 may be driven exclusively. This makes it possible to avoid the mixing of the first liquid and the second liquid which are different liquids.

  As mentioned above, although the present invention is illustrated using a preferred embodiment of the present invention, the present invention should not be construed as being limited to this embodiment. It is understood that the scope of the present invention should be interpreted only by the claims. It is understood that those skilled in the art can implement the equivalent scope based on the description of the present invention and common technical knowledge, from the description of the specific preferred embodiments of the present invention. It is understood that the documents cited in the present specification are incorporated by reference to the present specification as the content itself is specifically described in the present specification.

  The present invention, in the field of plant hydroponic cultivation apparatus, plant hydroponic cultivation system and cultivation method, makes absorption of liquid by plants and absorption of gas evaporated from liquid more uniform according to the type of liquid provided to the plant to be grown A plant hydroponic cultivation apparatus, a plant hydroponic cultivation system, and a cultivation method that can be implemented in the present invention are useful.

DESCRIPTION OF SYMBOLS 10 Water supply part 10a Water absorption pipe 10a1 Water absorption pipe plug 10b Water discharge pipe 10b1 Water discharge pipe plug 11 Oxygen-containing water tank (1st liquid tank)
11a Oxygen-containing water suction pipe 11a1 Oxygen-containing water suction pipe plug 11b Oxygen-containing water discharge pipe 11b1 Oxygen-containing water discharge pipe plug 11c Fine bubble generator 12 Oxygen-containing water generation part (first liquid generation part)
12a oxygen-containing water recovery pipe 12b oxygen-containing water discharge pipe 13 oxygen generation part (first gas generation part)
20 Carbonated water supply unit (second liquid supply unit)
21 Carbonated water tank (second liquid tank)
Reference Signs List 30 operation part 100 plant hydroponic cultivation apparatus 101 storage container 101a container leg part 101b liquid inflow hole 102 water supply pipe 102a water supply main pipe 102b water supply connection pipe 102b1 water supply connection pipe valve 102c water supply branch pipe 103 carbonated water supply pipe 104a first oxygen Containing water discharge pipe 104b Second oxygen containing water discharge pipe 104c Oxygen containing water discharge filter 105a First carbonated water discharge pipe 105a1, 105b1 Open / close valve 105b Second carbonated water discharge pipe 105c Carbonated water discharge filter 100a Storage container 110 Tray (outside container)
111 Tray bottom portion 112 Tray side wall portion 113 Tray flange portion 120 Cultivation unit (inner container)
121 plate-like body 122 cup-like body 122a liquid introduction hole 123 plant cultivation part 1000 plant hydroponic cultivation system C10, C11, C12, C20 control signal H1 to H5 connecting hose W oxygen water Ow ozone water Sw carbonated water

Claims (16)

A reservoir for storing liquid,
A first liquid supply mechanism for providing a first liquid to the storage container at a first water level;
A second liquid supply mechanism for providing a second liquid to the storage container at a second water level;
, A plant hydroponic cultivation apparatus.   The storage container is configured such that a storage container for storing a plant is disposed therein, and the first water level is a water level at which the first liquid intrudes into the storage container, and the second water level is the second water level. The plant hydroponic cultivation apparatus according to claim 1, wherein the water level is a water level at which the second liquid does not infiltrate into the storage container. The plant hydroponic cultivation apparatus according to claim 1, wherein the first liquid supply mechanism is configured to supply the first liquid from the bottom surface of the storage container. The plant hydroponic according to any one of claims 1 to 3, wherein the second liquid supply mechanism is configured to supply a second gas and liquid from a position higher than a supply position of the first liquid. Cultivation equipment. The first liquid according to any one of claims 1 to 4, wherein the first liquid is a first liquid in which the first gas is mixed in the liquid, and the second liquid is a second liquid in which the second gas is mixed in the liquid. The plant hydroponic cultivation apparatus of any one of 1 item. The plant hydroponic cultivation apparatus according to claim 5, wherein the first gas is oxygen or ozone. The plant hydroponic cultivation apparatus of Claim 5 or 6 whose said 2nd gas is a carbon dioxide. The plant hydroponic cultivation apparatus of any one of Claims 5-7 whose said 1st gas and / or 2nd gas are in the state of a micro bubble. The plant hydroponic cultivation apparatus of any one of Claims 5-7 whose said 1st gas and / or 2nd gas are in the state of a nano bubble. The plant hydroponic cultivation apparatus of any one of Claims 1-9 provided with the liquid supply mechanism control part which controls so that the said 1st liquid supply mechanism and the said 2nd liquid supply mechanism may be driven exclusively. . The plant hydroponic cultivation apparatus according to any one of claims 1 to 10, wherein the first liquid supply mechanism comprises a first gas-liquid control unit that selects a first gas from oxygen or ozone. The plant hydroponic cultivation apparatus of any one of Claims 1-11 provided with the sensor for detecting the state of a plant. The plant hydroponic cultivation according to any one of claims 1 to 12, wherein the storage container comprises a first opening corresponding to the first water level and a second opening corresponding to the second water level. apparatus. The plant hydroponic cultivation apparatus according to claim 13, wherein the first opening is provided at a position higher than the second opening. A container for containing the plant;
The plant hydroponic cultivation system provided with the plant hydroponic cultivation apparatus of any one of Claims 1-14. It is a cultivation method of a plant, and
The cultivation method including the process of cultivating a plant using the plant hydroponic cultivation apparatus of any one of Claims 1-14, or the plant hydroponic cultivation system of Claim 15.

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