EP0628488A1 - Container for the transport, storage and dispensing of chemical products - Google Patents

Container for the transport, storage and dispensing of chemical products Download PDF

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Publication number
EP0628488A1
EP0628488A1 EP94401308A EP94401308A EP0628488A1 EP 0628488 A1 EP0628488 A1 EP 0628488A1 EP 94401308 A EP94401308 A EP 94401308A EP 94401308 A EP94401308 A EP 94401308A EP 0628488 A1 EP0628488 A1 EP 0628488A1
Authority
EP
European Patent Office
Prior art keywords
container according
container
envelope
outer casing
cylindrical part
Prior art date
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.)
Granted
Application number
EP94401308A
Other languages
German (de)
French (fr)
Other versions
EP0628488B1 (en
Inventor
Marie-Anne Tillard
Christian Colin
Winfried Trinkaus
Werner Buttner
Martin Benzinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plastic Omnium SE
Original Assignee
Merck Patent GmbH
Plastic Omnium SE
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Publication date
Application filed by Merck Patent GmbH, Plastic Omnium SE filed Critical Merck Patent GmbH
Publication of EP0628488A1 publication Critical patent/EP0628488A1/en
Application granted granted Critical
Publication of EP0628488B1 publication Critical patent/EP0628488B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of curved cross-section
    • B65D11/06—Drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/048—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical
    • B65D77/0486—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid and the outer container being of curved cross-section, e.g. cylindrical the inner container being coaxially disposed within the outer container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/84—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for for corrosive chemicals

Definitions

  • the present invention relates to a container for the transport, storage and distribution of chemicals, in particular very high purity chemicals such as those intended for the semiconductor industry.
  • Containers compatible with this use have recently been developed and comprising an inner envelope made of fluorinated plastic, in particular PFA (perfluoroalkoxy copolymer), provided at its upper part with a closure device crossed by filling and distribution connections, and an outer envelope having a substantially cylindrical outer shape and an inner shape substantially matching that of the inner envelope.
  • PFA perfluoroalkoxy copolymer
  • the outer envelope which is preferably a double-walled polyethylene envelope filled with foam, is cylindrical over the entire height of the container.
  • Such a design makes the container relatively sensitive to lateral impact, especially during transport and during use, in particular at the level of the lower part of the container by which it is made to strike the ground or surfaces of means. transport. Such shocks are likely to damage the inner casing and / or the connections with which the plugging device is provided.
  • the present invention proposes to provide a container for the transport, storage and distribution of chemicals, which is pressurizable and removable and which ensures optimum impact resistance, in particular in the upper and lower parts of the container which could cause deterioration. of the inner casing and / or of the plugging device connections.
  • the outer envelope comprises a cylindrical part which forms a body, at its lower part, with a base of quadrangular section and of cross-sectional area greater than that of the cylindrical part of the outer envelope.
  • This base square or preferably rectangular, which can be provided with feet at its lower part, provides the container with excellent stability on the ground, the protruding parts of the base constituting a protective shield against shocks.
  • the base also constitutes a transport pallet, the container thus constituting a transportable structure in one piece.
  • the outer casing is surmounted by an annular cover for the peripheral protection of the connections with which the plugging device is provided, said cover consisting of a plurality of bosses separated from each other by slots with bottom wall inclined downwards and outwards.
  • the cover advantageously has a generally frustoconical shape, the bosses being frustoconical segments.
  • the constituent segments of the lid which are arranged around the central part of the container from which protrudes upwards the connections of the closure device, have a height greater than that of the connections and constitute, in the corresponding zone, a shield against screws for side impacts to which the container could be subjected and which could damage the protruding connections of the closure device.
  • the slots made between the segments of the cover facilitate access to the connections by the users, the latter being able to introduce the arm to the closure device equipped with the connections without being hindered by the height of the cover.
  • the sloping outward slits also promote the flow of water after cleaning with jets of water the outer shell of the container before use.
  • the passages thus produced prevent water from stagnating on the upper part of the container.
  • the particular shape of the cover according to the present invention also avoids disturbance of the vertical laminar flow of clean air used at the time of connection of the container.
  • the laminar flow can flow from the top of the connections towards the base of the latter and evacuate without strong turbulence through the slots made between the segments of the cover.
  • the closure device is fixed to a collar provided at the part upper of the inner envelope by fixing members, such as studs in composite materials, and has a frustoconical lower extension adapted to be housed in said collar which for this purpose has an inner wall of corresponding frustoconical shape.
  • This embodiment eliminates any elastomeric seal between the closure device and the inner casing which, in the usual containers, is a source of pollution for the products transported because it does not have the chemical inertness characteristics of fluorinated plastics, in in particular, the pure PFA used to make the inner casing and the part of the closure device intended to penetrate the inner casing.
  • the inner envelope made of PFA by rotational molding, or rolling or thermoforming then welding of PFA plates is reinforced with composite materials, for example, polyester and glass fibers making it possible to produce an envelope pressure resistant interior.
  • the inner envelope preferably has domed upper and lower parts joined by a cylindrical part, this cylindrical part being disposed at a certain distance internally from the internal wall of the external envelope.
  • fasteners made of composite, non-metallic materials, such as the studs already mentioned above to assemble the closure device on the collar of the inner casing and screws to fix the cover. on the one hand to the interior envelope and on the other hand to the exterior envelope.
  • the container is thus completely removable so that after removing the cover and a dust cap which is generally provided above the closure device, the inner casing can be easily removed from the outer casing and if necessary replaced.
  • the container shown in the drawing has an outer casing generally designated by 1, an inner casing generally designated by 2, a closure device, generally designated by 3 and provided with connections (not shown) for the introduction and distribution of chemicals. towards and respectively from the cavity formed by the inner casing 2, a dust cap 4 covering the upwardly projecting connections of the closure device 3, during transport and storage, and an annular upper cover generally designated by 5 mounted at the upper end of the outer casing 1.
  • the outer envelope 1 comprises a cylindrical part 6 in one piece with a rectangular base 7 provided with feet 8.
  • the outer casing 1 formed of the cylindrical part 6 and of the base 7 is preferably constituted by a double wall structure, in particular made of polyethylene filled with a foam, preferably of polyurethane.
  • the base 7 By its shape and its dimensions, the base 7 constitutes a slightly projecting structure with respect to the cylindrical part 6 and constitutes a protection against possible side impacts.
  • the base also contributes to the very good stability of the container on the ground and can be used as a pallet during transport and storage.
  • the inner envelope 2 made for example of PFA reinforced by composite materials, comprises a cylindrical part 9 disposed concentrically with the cylindrical part 6 of the envelope outer 1 with a radial spacing 10, said cylindrical part 9 extending downwards by a convex part 11 and upwards by a part also convex 12 terminated by a collar 13 defining the access opening to the interior volume of the inner envelope.
  • the interior wall 14 of the collar 13 defining the access opening towards the interior of the interior envelope 2 has a frustoconical shape converging towards the interior of said envelope.
  • the plugging device 3 in the form of a disc, has at its lower part a frustoconical bearing 15 of shape corresponding to the frustoconical bearing 14 of the collar 13 allowing a mounting and a forced retention of the plugging device 3 on the collar 13.
  • the plugging device 3 is provided, in a conventional manner, with connections (not shown) projecting downward and upward from the device as illustrated.
  • the closure device can be made of composite material and coated at least on its part facing the interior volume of the interior envelope with a plate of thermoformed chemically inert material, in particular PFA, the upper portion of the closure device being able to also be coated with a PFA or polyethylene sheet.
  • the annular cover 5 placed at the upper end of the cylindrical part 6 of the outer envelope 1 has, as best seen in Figure 1, the shape of a crown cut from a truncated cone, this crown itself being truncated along radii to define bosses 16 separated by slots 17 each having a base wall inclined downward and outward.
  • the maximum height of the bosses 16 of the cover is at least equal to the height of the parts of the connections made through the plugging device 3 and protruding upwards thereof.
  • the plugging device 3 is assembled to the collar 13 by non-metallic fasteners, in particular made of composite material, and in the same way, non-fasteners metal are provided to fix the cover on the inner casing on the one hand, and on the outer casing, on the other hand.
  • junctions of the cover with the outer casing and the collar of the inner casing are closed by gaskets of the belt type in order to close any gaps which may remain between the assembled parts and to avoid any retention of chemical product in such interstices.
  • the present invention thus makes it possible to produce a pressurizable container, entirely removable, having no metal part, resistant to attack by the chemicals transported and offering excellent resistance to impacts during the transport, storage and distribution phases.

Abstract

Container for the transport, storage and dispensing of chemical products comprising an inner casing made from a plastic material containing fluorine, in particular PFA, provided at its upper part with a stopper device traversed by filling and dispensing connections, and an outer casing having a substantially cylindrical external shape and an internal shape substantially matching that of the inner casing. The outer casing (1) consists of a cylindrical section (6) which is integral at its bottom with a base (7) of quadrangular cross-section and of cross-sectional area greater than that of the cylindrical section of the outer casing. <IMAGE>

Description

La présente invention a pour objet un conteneur pour le transport, le stockage et la distribution de produits chimiques, notamment de produits chimiques de très haute pureté tels que ceux destinés à l'industrie des semi-conducteurs.The present invention relates to a container for the transport, storage and distribution of chemicals, in particular very high purity chemicals such as those intended for the semiconductor industry.

On a récemment développé des conteneurs compatibles avec cette utilisation et comportant une enveloppe intérieure en matière plastique fluorée, en particulier en PFA (copolymère perfluoroalkoxy), munie à sa partie supérieure d'un dispositif de bouchage traversé par des connexions de remplissage et de distribution, et une enveloppe extérieure présentant une forme extérieure sensiblement cylindrique et une forme intérieure épousant sensiblement celle de l'enveloppe intérieure.Containers compatible with this use have recently been developed and comprising an inner envelope made of fluorinated plastic, in particular PFA (perfluoroalkoxy copolymer), provided at its upper part with a closure device crossed by filling and distribution connections, and an outer envelope having a substantially cylindrical outer shape and an inner shape substantially matching that of the inner envelope.

Un exemple de tel conteneur est indiqué dans FR-A-2 628 074.An example of such a container is indicated in FR-A-2 628 074.

Dans le conteneur selon ce document antérieur, l'enveloppe extérieure, qui est de préférence une enveloppe à double paroi en polyéthylène garnie d'une mousse, est cylindrique sur toute la hauteur du conteneur.In the container according to this prior document, the outer envelope, which is preferably a double-walled polyethylene envelope filled with foam, is cylindrical over the entire height of the container.

Une telle conception rend le conteneur relativement sensible aux chocs latéraux, notamment en cours de transport et en cours d'utilisation, en particulier au niveau de la partie inférieure du conteneur par laquelle celui-ci est amené à heurter le sol ou des surfaces de moyens de transport. De tels chocs sont de nature à endommager l'enveloppe intérieure et/ou les connexions dont est muni le dispositif de bouchage de celle-ci.Such a design makes the container relatively sensitive to lateral impact, especially during transport and during use, in particular at the level of the lower part of the container by which it is made to strike the ground or surfaces of means. transport. Such shocks are likely to damage the inner casing and / or the connections with which the plugging device is provided.

La présente invention se propose de réaliser un conteneur pour le transport, le stockage et la distribution de produits chimiques, qui soit pressurisable et démontable et qui assure une résistance optimale aux chocs notamment en partie haute et en partie basse du conteneur qui pourraient entraîner une détérioration de l'enveloppe intérieure et/ou des connexions du dispositif de bouchage.The present invention proposes to provide a container for the transport, storage and distribution of chemicals, which is pressurizable and removable and which ensures optimum impact resistance, in particular in the upper and lower parts of the container which could cause deterioration. of the inner casing and / or of the plugging device connections.

Selon une première caractéristique de la présente invention, l'enveloppe extérieure comporte une partie cylindrique qui fait corps, à sa partie inférieure, avec une embase de section quadrangulaire et d'aire de section supérieure à celle de la partie cylindrique de l'enveloppe extérieure.According to a first characteristic of the present invention, the outer envelope comprises a cylindrical part which forms a body, at its lower part, with a base of quadrangular section and of cross-sectional area greater than that of the cylindrical part of the outer envelope.

Cette embase, carrée ou de préférence rectangulaire, qui peut être munie de pieds à sa partie inférieure, assure au conteneur une excellente stabilité au sol, les parties débordantes de l'embase constituant un bouclier de protection vis-à-vis de chocs.This base, square or preferably rectangular, which can be provided with feet at its lower part, provides the container with excellent stability on the ground, the protruding parts of the base constituting a protective shield against shocks.

L'embase constitue également une palette de transport, le conteneur constituant ainsi une structure transportable d'un seul tenant.The base also constitutes a transport pallet, the container thus constituting a transportable structure in one piece.

Selon une autre caractéristique de la présente invention, l'enveloppe extérieure est surmontée d'un couvercle annulaire pour la protection périphérique des connexions dont est muni le dispositif de bouchage, ledit couvercle étant constitué d'une pluralité de bossages séparés entre eux par des fentes à paroi de fond inclinée vers le bas et vers l'extérieur. Le couvercle présente avantageusement une forme générale tronconique, les bossages étant des segments de tronc de cône.According to another characteristic of the present invention, the outer casing is surmounted by an annular cover for the peripheral protection of the connections with which the plugging device is provided, said cover consisting of a plurality of bosses separated from each other by slots with bottom wall inclined downwards and outwards. The cover advantageously has a generally frustoconical shape, the bosses being frustoconical segments.

Les segments constitutifs du couvercle qui sont disposés autour de la partie centrale du conteneur de laquelle dépasse vers le haut les connexions du dispositif de bouchage, présentent une hauteur supérieure à celle des connexions et constituent, dans la zone correspondante, un bouclier vis-à-vis des chocs latéraux auxquels pourrait être soumis le conteneur et qui pourraient endommager les connexions en saillie du dispositif de bouchage.The constituent segments of the lid which are arranged around the central part of the container from which protrudes upwards the connections of the closure device, have a height greater than that of the connections and constitute, in the corresponding zone, a shield against screws for side impacts to which the container could be subjected and which could damage the protruding connections of the closure device.

Les fentes réalisées entre les segments du couvercle facilitent l'accès aux connexions par les utilisateurs, ces derniers pouvant introduire le bras jusqu'au dispositif de bouchage équipé des connexions sans être gênés par la hauteur du couvercle.The slots made between the segments of the cover facilitate access to the connections by the users, the latter being able to introduce the arm to the closure device equipped with the connections without being hindered by the height of the cover.

Les fentes en pente vers l'extérieur favorisent également l'écoulement de l'eau après le nettoyage par jets d'eau de l'enveloppe extérieure du conteneur avant l'utilisation. Les passages ainsi réalisés évitent à l'eau de stagner sur la partie supérieure du conteneur.The sloping outward slits also promote the flow of water after cleaning with jets of water the outer shell of the container before use. The passages thus produced prevent water from stagnating on the upper part of the container.

La forme particulière du couvercle selon la présente invention évite également la perturbation du flux laminaire vertical d'air propre utilisé au moment de la connexion du conteneur.The particular shape of the cover according to the present invention also avoids disturbance of the vertical laminar flow of clean air used at the time of connection of the container.

Le flux laminaire peut s'écouler depuis le sommet des connexions vers la base de celles-ci et s'évacuer sans fortes turbulences par les fentes ménagées entre les segments du couvercle.The laminar flow can flow from the top of the connections towards the base of the latter and evacuate without strong turbulence through the slots made between the segments of the cover.

Selon une autre caractéristique de la présente invention, pour assurer, même en cas de chocs, une étanchéité particulièrement satisfaisante du dispositif de bouchage à l'extrémité supérieure de l'enveloppe intérieure, le dispositif de bouchage est fixé à un collet prévu à la partie supérieure de l'enveloppe intérieure par des organes de fixation, tels que des goujons en matériaux composites, et présente un prolongement inférieur tronconique apte à être logé dans ledit collet qui comporte à cet effet une paroi intérieure de forme tronconique correspondante.According to another characteristic of the present invention, to ensure, even in the event of impact, a particularly satisfactory sealing of the closure device at the upper end of the inner casing, the closure device is fixed to a collar provided at the part upper of the inner envelope by fixing members, such as studs in composite materials, and has a frustoconical lower extension adapted to be housed in said collar which for this purpose has an inner wall of corresponding frustoconical shape.

Cette réalisation permet de supprimer tout joint élastomère entre le dispositif de bouchage et l'enveloppe intérieure qui, dans les conteneurs habituels, est une source de pollution pour les produits transportés car ne présentant pas les caractéristiques d'inertie chimique des matières plastiques fluorées, en particulier, le PFA pur utilisé pour réaliser l'enveloppe intérieure et la partie du dispositif de bouchage destinée à pénétrer dans l'enveloppe intérieure.This embodiment eliminates any elastomeric seal between the closure device and the inner casing which, in the usual containers, is a source of pollution for the products transported because it does not have the chemical inertness characteristics of fluorinated plastics, in in particular, the pure PFA used to make the inner casing and the part of the closure device intended to penetrate the inner casing.

Selon une autre caractéristique de la présente invention, l'enveloppe intérieure réalisée en PFA par rotomoulage, ou roulage ou thermoformage puis soudage de plaques de PFA, est renforcée de matériaux composites, par exemple, de polyester et fibres de verre permettant de réaliser une enveloppe intérieure résistant à la pression.According to another characteristic of the present invention, the inner envelope made of PFA by rotational molding, or rolling or thermoforming then welding of PFA plates, is reinforced with composite materials, for example, polyester and glass fibers making it possible to produce an envelope pressure resistant interior.

L'enveloppe intérieure présente de préférence des parties supérieure et inférieure bombées réunies par une partie cylindrique, cette partie cylindrique étant disposée à une certaine distance intérieurement de la paroi intérieure de l'enveloppe extérieure.The inner envelope preferably has domed upper and lower parts joined by a cylindrical part, this cylindrical part being disposed at a certain distance internally from the internal wall of the external envelope.

Pour l'assemblage du conteneur, on utilise des organes de fixation en matériaux composites, non métalliques, tels que les goujons déjà mentionnés ci-dessus pour assembler le dispositif de bouchage sur le collet de l'enveloppe intérieure et des vis pour fixer le couvercle d'une part à l'enveloppe intérieure et d'autre part à l 'enveloppe extérieure.For the assembly of the container, use is made of fasteners made of composite, non-metallic materials, such as the studs already mentioned above to assemble the closure device on the collar of the inner casing and screws to fix the cover. on the one hand to the interior envelope and on the other hand to the exterior envelope.

Le conteneur est ainsi entièrement démontable de telle sorte qu'après retrait du couvercle et d'un capuchon anti-poussière qui est en général prévu au-dessus du dispositif de bouchage, l'enveloppe intérieure peut être facilement extraite de l'enveloppe extérieure et le cas échéant remplacée.The container is thus completely removable so that after removing the cover and a dust cap which is generally provided above the closure device, the inner casing can be easily removed from the outer casing and if necessary replaced.

Dans le but de mieux faire comprendre l'invention, on va maintenant en décrire à titre d'exemple nullement limitatif, un mode de réalisation en se référant au dessin annexé dans lequel :

  • la figure 1 illustre un conteneur selon l'invention en position assemblée,
  • la figure 2 est une vue en coupe très schématique du conteneur de la figure 1.
In order to better understand the invention, we will now describe by way of nonlimiting example, an embodiment with reference to the accompanying drawing in which:
  • FIG. 1 illustrates a container according to the invention in the assembled position,
  • FIG. 2 is a very schematic sectional view of the container of FIG. 1.

Le conteneur représenté sur le dessin comporte une enveloppe extérieure désignée globalement par 1, une enveloppe intérieure désignée globalement par 2, un dispositif de bouchage, désigné globalement par 3 et muni de connexions (non représentées) pour l'introduction et la distribution de produits chimiques vers et respectivement depuis la cavité formée par l'enveloppe intérieure 2, un capuchon anti-poussière 4 recouvrant les connexions en saillie vers le haut du dispositif de bouchage 3, en cours de transport et de stockage, et un couvercle supérieur annulaire désigné globalement par 5 monté à l'extrémité supérieure de l'enveloppe extérieure 1.The container shown in the drawing has an outer casing generally designated by 1, an inner casing generally designated by 2, a closure device, generally designated by 3 and provided with connections (not shown) for the introduction and distribution of chemicals. towards and respectively from the cavity formed by the inner casing 2, a dust cap 4 covering the upwardly projecting connections of the closure device 3, during transport and storage, and an annular upper cover generally designated by 5 mounted at the upper end of the outer casing 1.

L'enveloppe extérieure 1 comporte une partie cylindrique 6 d'un seul tenant avec une embase rectangulaire 7 munie de pieds 8.The outer envelope 1 comprises a cylindrical part 6 in one piece with a rectangular base 7 provided with feet 8.

L'enveloppe extérieure 1 formée de la partie cylindrique 6 et de l'embase 7 est, de préférence, constituée par une structure à double paroi, notamment en polyéthylène remplie avec une mousse, de préférence de polyuréthane.The outer casing 1 formed of the cylindrical part 6 and of the base 7 is preferably constituted by a double wall structure, in particular made of polyethylene filled with a foam, preferably of polyurethane.

De par sa forme et ses dimensions, l'embase 7 constitue une structure légèrement débordante par rapport à la partie cylindrique 6 et constitue une protection vis-à-vis de chocs latéraux éventuels.By its shape and its dimensions, the base 7 constitutes a slightly projecting structure with respect to the cylindrical part 6 and constitutes a protection against possible side impacts.

L'embase contribue également à la très bonne stabilité du conteneur sur le sol et peut servir de palette lors du transport et du stockage.The base also contributes to the very good stability of the container on the ground and can be used as a pallet during transport and storage.

L'enveloppe intérieure 2, réalisée par exemple en PFA renforcé par des matériaux composites, comporte une partie cylindrique 9 disposée concentriquement à la partie cylindrique 6 de l'enveloppe extérieure 1 avec un espacement radial 10, ladite partie cylindrique 9 se prolongeant vers le bas par une partie bombée 11 et vers le haut par une partie également bombée 12 terminée par un collet 13 définissant l'ouverture d'accès au volume intérieur de l'enveloppe intérieure.The inner envelope 2, made for example of PFA reinforced by composite materials, comprises a cylindrical part 9 disposed concentrically with the cylindrical part 6 of the envelope outer 1 with a radial spacing 10, said cylindrical part 9 extending downwards by a convex part 11 and upwards by a part also convex 12 terminated by a collar 13 defining the access opening to the interior volume of the inner envelope.

Comme on le voit sur la figure 2, la paroi intérieure 14 du collet 13 définissant l'ouverture d'accès vers l'intérieur de l'enveloppe intérieure 2 présente une forme tronconique convergeant vers l'intérieur de ladite enveloppe.As can be seen in FIG. 2, the interior wall 14 of the collar 13 defining the access opening towards the interior of the interior envelope 2 has a frustoconical shape converging towards the interior of said envelope.

Le dispositif de bouchage 3, en forme de disque, comporte à sa partie inférieure une portée tronconique 15 de forme correspondant à la portée tronconique 14 du collet 13 permettant un montage et une retenue à force du dispositif de bouchage 3 sur le collet 13.The plugging device 3, in the form of a disc, has at its lower part a frustoconical bearing 15 of shape corresponding to the frustoconical bearing 14 of the collar 13 allowing a mounting and a forced retention of the plugging device 3 on the collar 13.

Le dispositif de bouchage 3 est muni, de manière conventionnelle, de connexions (non représentées) dépassant vers le bas et vers le haut du dispositif tel qu'illustré.The plugging device 3 is provided, in a conventional manner, with connections (not shown) projecting downward and upward from the device as illustrated.

Le dispositif de bouchage peut être réalisé en matériau composite et revêtu au moins sur sa partie tournée vers le volume intérieur de l'enveloppe intérieure d'une plaque de matériau chimiquement inerte, notamment de PFA, thermoformée, la partie supérieure du dispositif de bouchage pouvant être revêtue également d'une feuille de PFA ou de polyéthylène.The closure device can be made of composite material and coated at least on its part facing the interior volume of the interior envelope with a plate of thermoformed chemically inert material, in particular PFA, the upper portion of the closure device being able to also be coated with a PFA or polyethylene sheet.

Le couvercle annulaire 5 mis en place à l'extrémité supérieure de la partie cylindrique 6 de l'enveloppe extérieure 1 présente, comme on le voit le mieux sur la figure 1, la forme d'une couronne découpée dans un tronc de cône, cette couronne étant elle-même tronquée selon des rayons pour définir des bossages 16 séparés par des fentes 17 comportant chacune une paroi de base inclinée vers le bas et vers l'extérieur.The annular cover 5 placed at the upper end of the cylindrical part 6 of the outer envelope 1 has, as best seen in Figure 1, the shape of a crown cut from a truncated cone, this crown itself being truncated along radii to define bosses 16 separated by slots 17 each having a base wall inclined downward and outward.

La hauteur maximale des bossages 16 du couvercle est au moins égale à la hauteur des parties des connexions réalisées au travers du dispositif de bouchage 3 et dépassant vers le haut de celui-ci.The maximum height of the bosses 16 of the cover is at least equal to the height of the parts of the connections made through the plugging device 3 and protruding upwards thereof.

Le dispositif de bouchage 3 est assemblé au collet 13 par des organes de fixation non métalliques, notamment en matériau composite, et de la même manière, des éléments de fixation non métalliques sont prévus pour fixer le couvercle sur l'enveloppe intérieure d'une part, et sur l'enveloppe extérieure, d'autre part.The plugging device 3 is assembled to the collar 13 by non-metallic fasteners, in particular made of composite material, and in the same way, non-fasteners metal are provided to fix the cover on the inner casing on the one hand, and on the outer casing, on the other hand.

Dans la pratique, les jonctions du couvercle avec l'enveloppe extérieure et le collet de l'enveloppe intérieure sont fermées par des joints de type ceinture afin d'obturer tout interstice éventuellement subsistant entre les pièces assemblées et éviter toute rétention de produit chimique dans de tels interstices.In practice, the junctions of the cover with the outer casing and the collar of the inner casing are closed by gaskets of the belt type in order to close any gaps which may remain between the assembled parts and to avoid any retention of chemical product in such interstices.

La présente invention permet ainsi de réaliser un conteneur pressurisable, entièrement démontable, ne présentant aucune pièce métallique, résistant aux agressions par les produits chimiques transportés et offrant tant au cours des phases de transport, de stockage que de distribution une excellente résistance aux chocs.The present invention thus makes it possible to produce a pressurizable container, entirely removable, having no metal part, resistant to attack by the chemicals transported and offering excellent resistance to impacts during the transport, storage and distribution phases.

Claims (8)

1 - Conteneur pour le transport, le stockage et la distribution de produits chimiques, comportant une enveloppe intérieure en matière plastique fluorée, en particulier en PFA, munie à sa partie supérieure d'un dispositif de bouchage traversé par des connexions de remplissage et de distribution, et une enveloppe extérieure présentant une forme extérieure sensiblement cylindrique et une forme intérieure épousant sensiblement celle de l'enveloppe intérieure, caractérisé par le fait que l'enveloppe extérieure (1) est constituée d'une partie cylindrique (6) qui fait corps à sa partie inférieure, avec une embase (7) de section quadrangulaire et d'aire de section supérieure à celle de la partie cylindrique de l'enveloppe extérieure. 1 - Container for the transport, storage and distribution of chemicals, comprising an inner envelope of fluorinated plastic, in particular PFA, provided at its upper part with a closure device crossed by filling and distribution connections , and an outer casing having a substantially cylindrical outer shape and an inner shape substantially matching that of the inner casing, characterized in that the outer casing (1) consists of a cylindrical part (6) which forms a body its lower part, with a base (7) of quadrangular section and of cross-sectional area greater than that of the cylindrical part of the outer casing. 2 - Conteneur selon la revendication 1, caractérisé par le fait que ladite embase (7) présente une forme rectangulaire. 2 - Container according to claim 1, characterized in that said base (7) has a rectangular shape. 3 - Conteneur selon l'une quelconque des revendications 1 et 2, caractérisé par le fait que ladite embase (7) présente des pieds (8) à sa partie inférieure. 3 - Container according to any one of claims 1 and 2, characterized in that said base (7) has feet (8) at its lower part. 4 - Conteneur selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'enveloppe extérieure (1) est surmontée d'un couvercle annulaire (5), ledit couvercle étant constitué d'une pluralité de bossages (16) séparés entre eux par des fentes (17) à paroi de fond inclinée vers le bas et vers l'extérieur. 4 - Container according to any one of claims 1 to 3, characterized in that the outer envelope (1) is surmounted by an annular cover (5), said cover consisting of a plurality of bosses (16) separated from each other by slots (17) with bottom walls inclined downwards and outwards. 5 - Conteneur selon la revendication 4, caractérisé par le fait que le couvercle annulaire (5) présente une forme générale tronconique, les bossages (16) étant des segments de tronc de cône. 5 - Container according to claim 4, characterized in that the annular cover (5) has a generally frustoconical shape, the bosses (16) being segments of truncated cone. 6 - Conteneur selon l'une quelconque des revendications précédentes, caractérisé par le fait que le dispositif de bouchage (3) est fixé à un collet (13) prévu à la partie supérieure de l'enveloppe intérieure (2) et présente un prolongement inférieur tronconique (15) apte à être logé dans ledit collet qui comporte à cet effet, une paroi intérieure (14) de forme tronconique correspondante. 6 - Container according to any one of the preceding claims, characterized in that the closure device (3) is fixed to a collar (13) provided at the upper part of the inner envelope (2) and has a lower extension frustoconical (15) capable of being housed in said collar which for this purpose comprises an inner wall (14) of corresponding frustoconical shape. 7 - Conteneur selon l'une quelconque des revendications précédentes, caractérisé par le fait que l'enveloppe intérieure (2) présente une partie cylindrique (9) et des parties inférieure et supérieure (12) bombées, ladite partie cylindrique (9) étant disposée radialement espacée de la partie cylindrique (6) de l'enveloppe extérieure (1). 7 - Container according to any one of the preceding claims, characterized in that the inner envelope (2) has a cylindrical part (9) and lower and upper parts (12) curved, said cylindrical part (9) being arranged radially spaced from the cylindrical part (6) of the outer casing (1). 8 - Conteneur selon l'une quelconque des revendications précédentes, caractérisé par le fait que l'enveloppe intérieure (2) est renforcée de matériaux composites, notamment de polyester et de fibres de verre. 8 - Container according to any one of the preceding claims, characterized in that the inner envelope (2) is reinforced with composite materials, in particular polyester and glass fibers.
EP94401308A 1993-06-11 1994-06-10 Container for the transport, storage and dispensing of chemical products Expired - Lifetime EP0628488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9307082A FR2706427B1 (en) 1993-06-11 1993-06-11 Container for transport, storage and distribution of chemicals.
FR9307082 1993-06-11

Publications (2)

Publication Number Publication Date
EP0628488A1 true EP0628488A1 (en) 1994-12-14
EP0628488B1 EP0628488B1 (en) 1997-04-16

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EP94401308A Expired - Lifetime EP0628488B1 (en) 1993-06-11 1994-06-10 Container for the transport, storage and dispensing of chemical products

Country Status (4)

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US (1) US5692631A (en)
EP (1) EP0628488B1 (en)
DE (2) DE69402607T2 (en)
FR (1) FR2706427B1 (en)

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WO1996021606A1 (en) * 1995-01-13 1996-07-18 Wiva Verpakkingen B.V. Device for storing liquid, in particular aggressive liquid
WO1999059892A1 (en) 1998-05-20 1999-11-25 Aventis Cropscience S.A. Container for toxic product
WO2001009010A1 (en) * 1999-08-03 2001-02-08 Claus Wunsch Collecting, transporting and storing container
ES2170648A1 (en) * 2000-03-17 2002-08-01 Rototank S L Fabrication of polyethylene based containers of e.g. liquids consists of moulding of a hard exterior, for bonding to a foam interior, and final lining
US6896838B2 (en) 2001-11-21 2005-05-24 Closure Medical Corporation Halogenated polymeric containers for 1, 1-disubstituted monomer compositions
WO2013001122A1 (en) * 2011-06-27 2013-01-03 Leon Fernandez Maria Rosario Pouring container

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US6536192B2 (en) * 2000-07-14 2003-03-25 Halliburton Energy Services, Inc. Drill bit packages and methods
US6840407B2 (en) * 2001-08-16 2005-01-11 Food Equipment Technologies Company, Inc. Vacuum insulated beverage dispenser with reinforced metal housing and method of making same
GB0217345D0 (en) * 2002-07-25 2002-09-04 Ubh Internat Ltd Portable tank
KR20100029218A (en) * 2007-05-29 2010-03-16 씨디아이 실스, 인코포레이티드 One-piece blow-molded container with rigid fitment
ITPN20130028A1 (en) * 2013-05-23 2014-11-24 Gianfranco Bisaro IMPROVED PACKAGING FOR BARRELS, IN PARTICULAR KEG
KR101538892B1 (en) * 2014-08-07 2015-07-22 이진숙 Bottle Protecting Cover Assembly
FR3075186B1 (en) * 2017-12-18 2019-11-15 Airbus Operations (S.A.S.) RADOME STORAGE CONTAINER WITH PROFILE FLASHED UP

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WO1996021606A1 (en) * 1995-01-13 1996-07-18 Wiva Verpakkingen B.V. Device for storing liquid, in particular aggressive liquid
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WO2001009010A1 (en) * 1999-08-03 2001-02-08 Claus Wunsch Collecting, transporting and storing container
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WO2013001122A1 (en) * 2011-06-27 2013-01-03 Leon Fernandez Maria Rosario Pouring container

Also Published As

Publication number Publication date
US5692631A (en) 1997-12-02
EP0628488B1 (en) 1997-04-16
FR2706427A1 (en) 1994-12-23
DE628488T1 (en) 1995-07-13
DE69402607D1 (en) 1997-05-22
DE69402607T2 (en) 1997-12-18
FR2706427B1 (en) 1995-08-11

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