FR2477833A1 - Hydroponic cultivation trays moulded from expanded polystyrene - to force growth by thermal differential effects - Google Patents

Hydroponic cultivation trays moulded from expanded polystyrene - to force growth by thermal differential effects Download PDF

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Publication number
FR2477833A1
FR2477833A1 FR8005583A FR8005583A FR2477833A1 FR 2477833 A1 FR2477833 A1 FR 2477833A1 FR 8005583 A FR8005583 A FR 8005583A FR 8005583 A FR8005583 A FR 8005583A FR 2477833 A1 FR2477833 A1 FR 2477833A1
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FR
France
Prior art keywords
fact
culture container
container according
tank
expanded polystyrene
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Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR8005583A
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French (fr)
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8005583A priority Critical patent/FR2477833A1/en
Publication of FR2477833A1 publication Critical patent/FR2477833A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A01G31/02—Special apparatus therefor
    • A01G31/06—Hydroponic culture on racks or in stacked containers
    • 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
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/021—Pots formed in one piece; Materials used therefor
    • 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

Abstract

Plant support dish for hydroponic cultivation is made from thermal insulation matl. such as thick walled expanded polystyrene. The insulation can maintain a temp differential, of about 5 deg C, between the root and crown zones of plants placed therein, to promote accelerated growth rates. Opt tray profile is stackable. The rim of the tray is pref stiffened by lining with a length of adhesive coated tape, which may be metallic or of e.g. polypropylene. Typically the thickness of the tray base is about 5 cm, and the tray profile is stackable.

Description

BAC EN POLYSTYRENE EXPANSE POUR FORCAGE HYDROPONIQUE
L'obit de l'invention concerne la création de bacs en matire plastique moulée en nolystyrène expansé adaptables sur des supports modulaires gerbables, destinés à la culture hydroponique telle que celle des endives #chicorée Witloof\
Les disnositifs connus de ce genre permettant la culture hydrononique réalisés, soit en tole d'acier, avec un traitement de surface approprié, soit en plastique moulé, cherchent à résoudre les nobles de résistante contre la corrosion dûe aux produits nourrisseurs, de type acide.Toutefois, ces dispositifs ne contribuent pas à valoriser la qualité du forçage, car ils présentent une conductibilité thermique--importante. En effet dans le cas de l'endive, une meilleure qualité de forçage est bbtenue lorsque la différence de température entre la base des racines et la tête du bourgeon est sensible.EXPANDED POLYSTYRENE CONTAINER FOR HYDROPONIC FORCING
The object of the invention relates to the creation of tubs in plastic molded in expanded nolystyrene adaptable on stackable modular supports, intended for hydroponics such as endives # chicory Witloof \
Known devices of this kind allowing hydrononic cultivation, either in sheet steel, with an appropriate surface treatment, or in molded plastic, seek to resolve the noble ones of resistance against corrosion due to nourishing products, of the acid type. However, these devices do not contribute to enhancing the quality of the forcing, since they have a high thermal conductivity. Indeed in the case of endive, a better quality of forcing is obtained when the temperature difference between the base of the roots and the head of the bud is significant.

L'objet du dispositif selon l'invention, est de limiter la conductibilité thermique entre l'air ambiant et la base des racines grace à une paroi ayant un fort coefficient K d'isolation ce qui en fait la particularité. Cette technologie de réalisation du bac de forçage pnset l'obtenir un écart de-température entre l'air ambiant et la base des racines en contact avec le liquide nourrisseur de leoddre de 5 O ; température optimale de croissance alors que cet écart dépasse très rarement 20C dans les conteneurs de forçage existants. The object of the device according to the invention is to limit the thermal conductivity between the ambient air and the base of the roots by virtue of a wall having a high coefficient K of insulation which makes it special. This technology for making the pnset forcing tank obtain a temperature difference between the ambient air and the base of the roots in contact with the leoddre feed liquid of 5 O; optimal growth temperature when this difference very rarely exceeds 20C in existing forcing containers.

On comprendra mieux l'objet de l'invention en se référant aux figures suivantes
Figure I : Vue de profil du bac (demi-coupe)
Figure II : Bac renforcé nar bandes adhésives
Figure III : Gerbage des bacs en stoc age. The object of the invention will be better understood by referring to the following figures
Figure I: Profile view of the tank (half-section)
Figure II: Reinforced container with adhesive strips
Figure III: Stacking of trays in storage.

La Figure I présente un bac de fortage réalisé en polystyrène expansé. La structure et la technique de moulage du bac ont été étudiés pour permettre le moulage des narois très chaudes sans variation de densité aux angles, afin d'assurer son étanchéité et sa tenue mécanique. Figure I shows a fortification tank made of expanded polystyrene. The structure and the molding technique of the tank have been studied to allow the molding of very hot narois without variation of density at the corners, in order to ensure its tightness and its mechanical strength.

Lënaisseur de la paroi a été calculée pour rénondre à des caractéristiques précises de conductibilité thermique. Dans le cas de l'endive, compte tenu de la chaleur de respiration du légume, du maintien de température du liquide nourrisseur, du coefficient de transmission du polystyrène expansé,l'épaisseur de la paroi a été calculée à environ 5 cm, ceci pour permettre de garantir un écart de température entre la base des racines et le bourgeon de ltordre de 50C. The wall thickness has been calculated to meet specific characteristics of thermal conductivity. In the case of endive, taking into account the breathing heat of the vegetable, the maintenance of temperature of the feed liquid, the transmission coefficient of expanded polystyrene, the thickness of the wall was calculated at approximately 5 cm, this for allow to guarantee a temperature difference between the base of the roots and the bud of around 50C.

A la base supérieure du bac, une ceinture en forte surénaisseur (1) assure la rigidité mécanique et permet le gerbage. Une feuillure externe (2) permet d'assurer le positionnement des bacs en gerbage - stoc!age. La face externe du fonc de bac (3) présente des alvéoles de forme carrée, les nervures (4) assurent la rigidiré et la protection mécanique du fonc du bac. Les faces latérales intérieures (5) présentent une légère dépouille, ceci afin de permettre ltextension latérale des légumes pendant leur période de croissance. Un orificie d'évacuttion (6) et de circulation du liquide nourrisseur est aménagé à la base par un tube dont la hauteur est réglable par pression et a pour but de fixer le niveau du liquide dans le bac. At the upper base of the bin, a greatly increased belt (1) provides mechanical rigidity and allows stacking. An external rebate (2) ensures the positioning of the stacking - storage containers. The external face of the container tray (3) has cells of square shape, the ribs (4) provide the rigid and mechanical protection of the container tray. The inner side faces (5) have a slight undercut, this in order to allow the lateral extension of the vegetables during their growth period. An evacuation opening (6) and circulation of the feeding liquid is arranged at the base by a tube whose height is adjustable by pressure and is intended to fix the level of the liquid in the tank.

On -utilise l'effet de l'élasticité de la mativre plastique permettant une légwre déformation de la peroi pendant le forqage. The effect of the elasticity of the plastic mat is used, allowing a slight deformation of the peroi during forcing.

Cependant pour améliorer la résistance mécanique du bac et compenser l'effort latéral de nression exercée par les légumes au cours de leur croissance, une armature externe entoure la ceinture supérieure du bac (fig IIA, cette armature nouvant etre soit métallique, soit constituée par une bande adhésive de poly propylène (I?
La figure III nous montre le gerbage de bac dn stockage et le positionnement assurés par la feuillure. Les dimensions des bacs de culture en polystyrne-expansé sont prévues pour s'adapter au supnorts métalliques modulaires.However, to improve the mechanical resistance of the tank and to compensate for the lateral stress exerted by the vegetables during their growth, an external frame surrounds the upper belt of the tank (fig IIA, this new frame being either metallic or constituted by a polypropylene adhesive tape (I?
Figure III shows the stacking of storage bin and positioning provided by the rebate. The dimensions of the expanded polystyrene culture tanks are designed to adapt to modular metallic supports.

Ces supports, dontla forme est adaptée i la nature de lvexploitation sont composés de montants veticaux solidaires des longerons supportant les bacs. These supports, the shape of which is adapted to the nature of the operation, are made up of vetal uprights secured to the side members supporting the tanks.

Il est à remarquer que l'apaisseur des narois du bac peut être variable en fonction du type de culture, pour adapter au mieux la qualité du forçage.  It should be noted that the thickness of the narois in the tank can be variable depending on the type of culture, to best adapt the quality of forcing.

Claims (9)

REVENDICATIONECLAIMED 1- Bac de culture, utilisé pour cultures horizontales, relevant 1- Culture container, used for horizontal crops, relevant de technique hydrononique, caractérisé nar la réalisation des hydrononic technique, characterized by the realization of bacs à partir de matériau thermiquement isolant. tubs from thermally insulating material. 2- Bac de culture, selon revendication 1, caractérisé nar le fait2- culture tank, according to claim 1, characterized by the fact que le matériau terviquevent isolant est du polystyrène expansé that the tervicvent insulating material is expanded polystyrene 3- Bac de culture selon reveication 1, caractérisé par le fait 3- Culture container according to reveication 1, characterized by the fact que les bacs sont gerbables au stockage, grace à une feuillure that the bins are stackable during storage, thanks to a rebate externe au bas du bac. external at the bottom of the tank. 4- Bac de culture selon revendication 1, caractérisé par le fait 4- Culture container according to claim 1, characterized by the fact que 1 'épaisseur des parais permet une différence de température that the thickness of the screens allows a temperature difference de l'ordre de 50 C entre le bas des racines et la tête des bour of the order of 50 C between the bottom of the roots and the head of the buds geons : temperature optimale de croissance. geons: optimal growth temperature. 5- Bac de culture selon revendication 1, caractérisé par le fait 5- Culture container according to claim 1, characterized by the fact que les faces laterales présentent une-lègère dépouille per that the lateral faces have a slight relief per mettant l'extension latérale des légumes pendant leur pédiode putting the lateral extension of the vegetables during their pods de croissance. growth. 6- Bac de culture selon revendication 1, caractérisé par le fait 6- Culture container according to claim 1, characterized by the fact que la face externe du fond de bac est alvéolaire. -  that the external face of the tank bottom is cellular. - 7- Bac de culture selon revendication 1, caractérisé par le fait 7- Culture container according to claim 1, characterized by the fact que le bac est adapté à un support métallique modulaire. that the tank is suitable for a modular metal support. 8 - Bac de culture selon revendication l, caractérisé par le fait 8 - Culture container according to claim l, characterized in that que la ceinture supérieure eomporte une armature extérieure the upper belt has an external frame de renforcement. reinforcement. 9- Bac de culture selon revendication 8, caractérisé par le fait 9- Culture container according to claim 8, characterized by the fact que cette armature peut- être un cerclage métallique. that this frame may be a metallic hoop. d'une bande de polypropylène adhésive.  an adhesive polypropylene strip. que cette armature externe peut etre réalisée par l'emploi that this external reinforcement can be produced by the use IO- Bac de culture selon revendication 8, caractérisé par le faitIO- Culture container according to claim 8, characterized by the fact
FR8005583A 1980-03-11 1980-03-11 Hydroponic cultivation trays moulded from expanded polystyrene - to force growth by thermal differential effects Withdrawn FR2477833A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8005583A FR2477833A1 (en) 1980-03-11 1980-03-11 Hydroponic cultivation trays moulded from expanded polystyrene - to force growth by thermal differential effects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8005583A FR2477833A1 (en) 1980-03-11 1980-03-11 Hydroponic cultivation trays moulded from expanded polystyrene - to force growth by thermal differential effects

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FR2477833A1 true FR2477833A1 (en) 1981-09-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096926A1 (en) * 1982-06-10 1983-12-28 Schulte & Lestraden B.V. Plant growth cell
FR2553970A1 (en) * 1983-10-27 1985-05-03 Allibert Sa Box for the hydroponic culture of plants.
EP0183653A1 (en) * 1984-11-29 1986-06-04 James Maillefer Horticultural device
EP1955587A1 (en) * 2007-02-07 2008-08-13 Ilio Talenti Structure for cultivating plants out of the ground, particularly for producing cut flowers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096926A1 (en) * 1982-06-10 1983-12-28 Schulte & Lestraden B.V. Plant growth cell
US4514929A (en) * 1982-06-10 1985-05-07 Schulte & Lestraden B.V. Cell
FR2553970A1 (en) * 1983-10-27 1985-05-03 Allibert Sa Box for the hydroponic culture of plants.
EP0183653A1 (en) * 1984-11-29 1986-06-04 James Maillefer Horticultural device
EP1955587A1 (en) * 2007-02-07 2008-08-13 Ilio Talenti Structure for cultivating plants out of the ground, particularly for producing cut flowers

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