WO2021024340A1 - 水耕栽培槽および排水部品 - Google Patents

水耕栽培槽および排水部品 Download PDF

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Publication number
WO2021024340A1
WO2021024340A1 PCT/JP2019/030664 JP2019030664W WO2021024340A1 WO 2021024340 A1 WO2021024340 A1 WO 2021024340A1 JP 2019030664 W JP2019030664 W JP 2019030664W WO 2021024340 A1 WO2021024340 A1 WO 2021024340A1
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WO
WIPO (PCT)
Prior art keywords
drainage
liquid fertilizer
drainage port
cultivation tank
port
Prior art date
Application number
PCT/JP2019/030664
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
林　大輔
Original Assignee
大浩研熱株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大浩研熱株式会社 filed Critical 大浩研熱株式会社
Priority to JP2021538557A priority Critical patent/JP7081866B2/ja
Priority to PCT/JP2019/030664 priority patent/WO2021024340A1/ja
Priority to TW109126353A priority patent/TWI843878B/zh
Publication of WO2021024340A1 publication Critical patent/WO2021024340A1/ja

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G31/00—Soilless cultivation, e.g. hydroponics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

Definitions

  • the present invention relates to a drainage component of a hydroponic cultivation tank.
  • Cultivation of food (vegetables and fruits) using soil such as upland farming does not require special equipment by appropriately supplying water and fertilizer if the weather is favorable.
  • general upland farming it is not easy to cultivate food stably due to various factors such as diseases caused by soil bacteria, feeding damage caused by pests, and poor growth due to unseasonable weather.
  • hydroponics has been attracting attention as a technique for stably cultivating various plants. Hydroponics is generally carried out in a house without using soil, and it is relatively easy to protect plants from diseases and pests. In addition, it is easy to control the growth temperature and watering during hydroponics. On the other hand, in hydroponics, it is necessary to stably supply liquid fertilizer to plants, supply water to plants and drain water from cultivation tanks appropriately, and if these are not done properly, root growth will occur. It may cause problems.
  • the above-mentioned hydroponic cultivation tank can grow leaves, stems, flowers, and fruits above the ground quickly, large, and of good quality by growing the roots over a wide area and quickly.
  • the roots tend to grow straight toward the drain along the flow, the roots that reach the drain may block the drain. If the roots block the drain, liquid fertilizer will overflow from the cultivation tank body. In order to prevent this, it is necessary to frequently pull out the roots that have entered the drainage port, and care must be taken not to cut the roots, which is a laborious task.
  • human hands frequently come into contact with the roots, which causes stress on plants and the propagation of germs, which may lead to growth disorders.
  • the present invention has been made in view of such a situation, and one of its exemplary purposes is to provide a new drainage structure that makes it difficult for grown roots to enter the drainage port.
  • the hydroponic cultivation tank includes a dipping portion filled with liquid fertilizer so that at least a part of the medium is immersed, and a supply portion for supplying liquid fertilizer to the dipping portion.
  • a discharge section for discharging the liquid fertilizer supplied to the immersion section is provided.
  • the drainage part has a drainage port formed above the bottom surface of the immersion part, a water-impervious wall formed between the drainage port and the supply part so as to surround the drainage port, and a liquid fertilizer bypassing the impermeable wall. It has a guide path that is guided to the drainage port.
  • the impermeable wall may be formed up to a region farther than the drainage port when viewed from the supply section. As a result, if the roots try to extend toward the drain, they must extend in the opposite direction when bypassing the impermeable wall. Therefore, the roots extending from the medium are less likely to enter the drain. In addition, since the distance from the start of cultivation to the roots entering the drainage port becomes longer, the period from the start of cultivation to the roots entering the drainage port can be lengthened.
  • the taxiway is a flat surface on which liquid fertilizer bypassing the impermeable wall flows toward the drainage port, and the flat surface may extend toward the side farther than the drainage port when viewed from the supply unit.
  • the height of the first wall between the supply part and the drainage port of the impermeable wall is higher than the height of the second wall on both sides of the first wall. This makes it difficult for the roots extending linearly from the supply section to the drain port to get over the first wall. Further, by pinching the first wall whose height is higher than that of the second wall and moving it up and down, the height of the drainage port can be easily adjusted.
  • This drainage component is a drainage component used to drain liquid fertilizer from an immersion portion filled with liquid fertilizer so that at least a part of the medium is immersed.
  • the drainage component is located above the bottom surface of the immersion part, and the drainage port from which the liquid fertilizer supplied to the immersion part is discharged, the impermeable wall formed so as to surround the drainage port, and the liquid fertilizer shield the drainage part. It has a guideway that bypasses the water wall and is guided to the drain.
  • FIG. 5 is a sectional view taken along the line AA of the drainage component shown in FIG. 8 (a) to 8 (c) are top views of the drainage guide portion of the drainage component according to the modified example of the present embodiment. It is a top view of the cultivation tank main body which comprises the cultivation tank which concerns on the modification of this embodiment.
  • One aspect of the present invention relates to a cultivation system provided with a hydroponic cultivation tank of a circulation type or a partial circulation type (hereinafter, may be simply referred to as a “cultivation tank”).
  • Plants targeted for hydroponics mainly include fruits and vegetables such as tomatoes, gourds, melons, and watermelons, beans, grains, flowers, trees, etc., and root growth is improved by vertical cultivation and shelf cultivation. Let me.
  • FIG. 1 is a schematic diagram showing a schematic configuration of a cultivation system including a hydroponic cultivation tank according to the present embodiment.
  • the cultivation system 10 is prepared by blending a liquid fertilizer (hereinafter, appropriately referred to as “liquid fertilizer”) L suitable for plant growth, and adjusts the temperature of the liquid fertilizer tank 12 and the liquid fertilizer tank 12 for storing the liquid fertilizer.
  • a liquid temperature adjusting unit 14 including a heater and a chiller for the purpose, a cultivation tank 16, and a pump 18 for supplying liquid fertilizer to the cultivation tank 16 are provided.
  • the liquid fertilizer L is discharged from the liquid fertilizer tank 12 by the pump 18, and is supplied to the cultivation tank 16 via the pipe 20.
  • the liquid fertilizer L discharged from the cultivation tank 16 is returned to the liquid fertilizer tank 12 via the pipe 22 and reused.
  • the cultivation tank 16 is mounted on a trolley 23, for example, and is provided with a supply unit 24, an immersion unit 26, and a discharge unit 28, which will be described in detail later.
  • FIG. 2 is a top view of the cultivation tank main body constituting the cultivation tank according to the present embodiment.
  • FIG. 3 is a top view of the upper lid constituting the cultivation tank according to the present embodiment.
  • FIG. 4 is an exploded cross-sectional view of the cultivation tank according to the present embodiment.
  • the cultivation tank 16 includes a cultivation tank main body 30 and an upper lid 32 placed so as to cover the upper surface of the cultivation tank main body 30.
  • the cultivation tank main body 30 is a tray-shaped container, and is a dipping section 26 filled with liquid fertilizer L so that at least a part of the medium 34 is immersed, a supply section 24 for supplying the liquid fertilizer L to the dipping section 26, and a dipping section 26.
  • the cultivation tank main body 30 has an external structure (box body) composed of a peripheral wall 30a and a bottom surface portion 30b composed of a heat insulating material and a main body inner wall seal (for example, a metal plate, a resin plate, a vinyl film, etc.).
  • the shape of the cultivation tank main body 30 according to the present embodiment is a regular quadrangle, but it may be any shape such as a rectangle, a polygon, and a circle. A shape with high symmetry is preferable because the roots spread isotropically.
  • the supply unit 24 is provided with a liquid fertilizer introduction unit 36 fixed at the center position of the bottom surface portion 30b and a rectifying structure 38 fixed around the liquid fertilizer introduction unit 36 by welding, screwing, adhesion, or the like. There is.
  • the liquid fertilizer L introduced through the liquid fertilizer introduction portion 36 is branched and injected in the horizontal direction from the vicinity of the bottom of the immersion portion 26 by the rectifying structure 38.
  • the rectifying structure 38 is preferably branched in four directions so as to face the center of each of the four walls of the peripheral wall 30a. Further, the cultivation tank main body 30 is provided with discharge portions 28 at four corners of the peripheral wall 30a equidistant from the liquid fertilizer introduction portion 36.
  • a drainage component 40 serving as a water level control drainage pipe (liquid fertilizer level control drainage pipe) is installed in the discharge section 28. The water level of the liquid fertilizer L in the cultivation tank main body 30 is adjusted by the drainage component 40, and the liquid fertilizer L is maintained at the adjusted water level.
  • the upper lid 32 has a regular quadrangle like the cultivation tank main body 30, and a mounting hole 42 for mounting the medium 34 is formed at the center position.
  • the depth of the mounting hole 42 is set so that at least a part of the medium is immersed in the liquid fertilizer L filled in the dipping portion 26 with the medium 34 mounted.
  • the water level W of the liquid fertilizer L adjusted by the drainage component 40 is also set so that the medium 34 is immersed in the liquid fertilizer L.
  • the upper lid 32 is provided with inspection ports 44 for adjusting the water level (for adjusting the liquid fertilizer level) at the four corners above the drainage component 40.
  • the inspection port 44 is covered with a removable inspection port lid 46.
  • FIG. 5 is a top view of the drainage component according to the present embodiment.
  • FIG. 6 is a side view of the drainage component according to the present embodiment.
  • FIG. 7 is a sectional view taken along the line AA of the drainage component shown in FIG.
  • the drainage component 40 is inserted by attaching a sealing component 50 such as an O-ring to the insertion hole 48 formed in the bottom surface portion 30b shown in FIG. As shown in FIGS. 6 and 7, the drainage component 40 has a tubular slide portion 52 that is inserted and fixed in the insertion hole 48 via the sealing component 50.
  • the slide portion 52 is formed with an opening 54 connected to the pipe 22. Further, a fan-shaped drainage guide portion 56 is provided above the slide portion 52.
  • the impermeable wall 60 is formed up to a region farther than the drainage port 58 when viewed from the supply unit 24.
  • the root R tries to extend toward the drainage port 58, it must extend in the opposite direction when bypassing the impermeable wall 60 (see FIG. 6).
  • the root R cannot reach the drainage port 58 unless it extends so as to be folded back at the edge portion 62a of the flat taxiway 62 where the impermeable wall 60 is not provided.
  • the root R extending from the medium 34 is less likely to enter the drainage port. Further, since the distance from the start of cultivation until the root R extending from the medium 34 enters the drainage port 58 becomes long, the period from the start of cultivation until the root enters the drainage port 58 can be lengthened.
  • the drainage guiding portion 56 according to the present embodiment has an arc-shaped notch 62c formed at the edge portion 62a. As a result, the liquid fertilizer L, which tends to stay at the four corners of the cultivation tank main body 30, can be easily guided from the supply unit 24 to the drain port 58.
  • the taxiway 62 is a flat surface 62b through which the liquid fertilizer L bypassing the impermeable wall 60 flows toward the drainage port 58.
  • the flat surface 62b may extend toward a side farther from the drain port 58 when viewed from the supply unit 24.
  • the inspection port lid 46 is opened and the inspection port 44 is opened within that period.
  • the impermeable wall 60 has a first wall 60a having a height h1 (height from the drainage port 58) between the supply unit 24 and the drainage port 58. It is higher than the height h2 of the second wall 60b on both sides of the wall 60a.
  • the root R extending linearly from the supply unit 24 to the drainage port 58 can be made difficult to get over the first wall 60a of the impermeable wall 60.
  • the height of the drainage port 58 can be easily adjusted by pinching the upper part of the first wall 60a, which is higher than the second wall 60b, and moving it up and down.
  • the liquid fertilizer L is supplied from the supply unit 24 provided in the central portion of the bottom surface portion 30b, and the liquid fertilizer L is supplied from the discharge portions 28 provided at the four corners of the immersion portion 26. Liquid fertilizer L is discharged.
  • the cultivation tank main body 30 in which the supply portion 24 and the discharge portion 28 of the liquid fertilizer L are arranged in this way is located at the position farthest from the central portion of the immersion portion 26, and allows the flow to the four corners having the highest flow resistance. By collecting, it is intended to maintain good convection.
  • the cultivation tank main body 30 can improve the problem of retention of liquid fertilizer L by using the drainage component 40.
  • the drainage component 40 since the fan-shaped flat surface 68 is closer to the four corners than the drainage port 58, the liquid fertilizer L is collected from the vicinity of the corner where the flow is weakest (easily stays). Cheap. This makes it possible to efficiently collect water from the four corners where it is difficult to attach water pipes structurally and in terms of space.
  • the water collection to the drain port 58 is performed not from the supply unit 24 side but from the four corners of the immersion unit 26 so as to go around the impermeable wall of the drainage component, so that the convection of the liquid fertilizer in the immersion unit 26 is caused.
  • the notch 62c of the drainage component 40 has the effect of reducing resistance to the flow of water from the four corners to the drainage port 58.
  • the liquid fertilizer L from the four corners to the drain port 58 is prevented from going to the outside of the impermeable wall 60 of the drainage component 40 instead of facing the flat surface 62b due to the resistance of the edge 62a, and the liquid fertilizer L is flat. It will smoothly head toward the drainage port 58 via the surface 68. In this way, by forcibly creating convection from the four corners where the liquid fertilizer L tends to stay and the flow is weak toward the drain port 58, convection with less bias and unevenness can be realized over the entire rectangular immersion portion 26.
  • (Modification example) 8 (a) to 8 (c) are top views of the drainage guide portion of the drainage component according to the modified example of the present embodiment.
  • the points different from the drainage guide portion 56 shown in FIG. 5 will be mainly described.
  • the edge portion 68a of the flat surface 68 is not arcuate but straight as compared with the drainage guiding portion 56 described above.
  • the outer peripheral portion of the flat surface 68 other than the edge portion 68a is all surrounded by the outer peripheral wall 70. As a result, the root R is less likely to extend from other than the edge portion 68a toward the drainage port 58.
  • the drainage guide portion 72 shown in FIG. 8B is different from the drainage guide portion 56 described above in that the hole 74 is formed on the flat surface 68.
  • a temperature sensor for measuring the temperature of liquid fertilizer a water level sensor for measuring the water level of liquid fertilizer, a concentration sensor for measuring the concentration of liquid fertilizer, and the like are inserted into the hole 74.
  • the hole 74 is also used as a flow path through which the overflowing liquid fertilizer L passes.
  • the drainage guide portion 76 shown in FIG. 8C is provided with a baffle plate 78 on a flat surface 68 as compared with the drainage guide portion 56 described above.
  • the baffle plate 78 is for preventing the root R from extending straight toward the drainage port 58 even if the root R rises from the edge portion 68a on the flat surface 68, and the root R is provided on the drainage port 58. The time of staying on the flat surface 68 before entering can be lengthened.
  • FIG. 9 is a top view of the main body of the cultivation tank constituting the cultivation tank according to the modified example of the present embodiment.
  • the cultivation tank main body 80 shown in FIG. 9 has the same basic configuration as the cultivation tank main body 30 described above, but has a rectangular shape as a whole, has a plurality of supply units 24, and has a plurality of types. The feature is that it is equipped with drainage parts. Note that FIG. 9 is shown by omitting one end of the rectangular cultivation tank body 80 in the longitudinal direction.
  • the cultivation tank main body 80 has a box body composed of a rectangular peripheral wall 80a and a bottom surface portion 80b.
  • a plurality of supply portions 24 are arranged on the bottom surface portion 80b along the longitudinal direction of the peripheral wall 80a, and the above-mentioned drainage parts 40 are arranged at the four corners.
  • a plurality of drainage parts 82 as shown in FIG. 8A are arranged so as to face the wall 80a1 parallel to the longitudinal direction.
  • the straight edge portion 68a is substantially parallel to the wall 80a1, and the flow of the liquid fertilizer L supplied from the supply portion 24 is less likely to be difficult to reach the drain port 58 of the drainage component 82 due to the resistance at the edge portion 68a. Will be done.
  • the cultivation tank main body 80 is provided not only with drainage parts 40 at the four corners of the rectangle, but also with a plurality of drainage parts 82 at the portions facing the sides of the rectangle.
  • the present invention has been described above with reference to the above-described embodiment, the present invention is not limited to the above-described embodiment, and the present invention is not limited to the above-described embodiment, and the configuration of the embodiment may be appropriately combined or replaced. It is included in the present invention. Further, it is also possible to appropriately rearrange the combination and the order of processing in the embodiment based on the knowledge of those skilled in the art, and to add modifications such as various design changes to the embodiment, and such modifications are added. Such embodiments may also be included in the scope of the present invention.
  • the present invention can be used in a hydroponic cultivation tank.
  • cultivation system 10 cultivation system, 12 liquid fertilizer tank, 13 medium, 16 cultivation tank, 20, 22 piping, 24 supply part, 26 immersion part, 28 discharge part, 30 cultivation tank body, 32 top lid, 34 medium, 40 drainage parts, 48 insertion holes , 52 slide part, 54 opening, 56 drainage guidance part, 58 drainage port, 60 impermeable wall, 60a first wall, 60b second wall, 62 taxiway, 62a edge, 62b flat surface.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Hydroponics (AREA)
  • Gyroscopes (AREA)
  • Lasers (AREA)
PCT/JP2019/030664 2019-08-05 2019-08-05 水耕栽培槽および排水部品 WO2021024340A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021538557A JP7081866B2 (ja) 2019-08-05 2019-08-05 水耕栽培槽および排水部品
PCT/JP2019/030664 WO2021024340A1 (ja) 2019-08-05 2019-08-05 水耕栽培槽および排水部品
TW109126353A TWI843878B (zh) 2019-08-05 2020-08-04 水耕栽培槽及排水零件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/030664 WO2021024340A1 (ja) 2019-08-05 2019-08-05 水耕栽培槽および排水部品

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WO2021024340A1 true WO2021024340A1 (ja) 2021-02-11

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JP (1) JP7081866B2 (enrdf_load_stackoverflow)
TW (1) TWI843878B (enrdf_load_stackoverflow)
WO (1) WO2021024340A1 (enrdf_load_stackoverflow)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135731A (ja) * 1984-07-26 1986-02-20 松下電器産業株式会社 養液栽培装置
JPS6260167U (enrdf_load_stackoverflow) * 1985-10-04 1987-04-14
JPS63126436A (ja) * 1986-11-18 1988-05-30 松下電器産業株式会社 水耕栽培装置の排水孔保護装置
JPH0474945U (enrdf_load_stackoverflow) * 1990-11-06 1992-06-30
JP2018078809A (ja) * 2016-11-14 2018-05-24 日栄インテック株式会社 排水管及び水耕栽培装置
US20180206422A1 (en) * 2015-07-17 2018-07-26 Urban Crop Solutions Bvba Industrial plant growing facility and methods of use

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM466489U (zh) * 2013-03-12 2013-12-01 Delta Electronics Inc 水耕床組
JP6047749B1 (ja) * 2016-02-09 2016-12-21 ホリマサシティファーム株式会社 アクアポニックスシステムとそれを使用した魚介類飼育方法及び植物栽培方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135731A (ja) * 1984-07-26 1986-02-20 松下電器産業株式会社 養液栽培装置
JPS6260167U (enrdf_load_stackoverflow) * 1985-10-04 1987-04-14
JPS63126436A (ja) * 1986-11-18 1988-05-30 松下電器産業株式会社 水耕栽培装置の排水孔保護装置
JPH0474945U (enrdf_load_stackoverflow) * 1990-11-06 1992-06-30
US20180206422A1 (en) * 2015-07-17 2018-07-26 Urban Crop Solutions Bvba Industrial plant growing facility and methods of use
JP2018078809A (ja) * 2016-11-14 2018-05-24 日栄インテック株式会社 排水管及び水耕栽培装置

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JP7081866B2 (ja) 2022-06-07
TWI843878B (zh) 2024-06-01
TW202112225A (zh) 2021-04-01
JPWO2021024340A1 (enrdf_load_stackoverflow) 2021-02-11

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