EP0463642A2 - Gas delivery unit - Google Patents

Gas delivery unit Download PDF

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Publication number
EP0463642A2
EP0463642A2 EP19910115174 EP91115174A EP0463642A2 EP 0463642 A2 EP0463642 A2 EP 0463642A2 EP 19910115174 EP19910115174 EP 19910115174 EP 91115174 A EP91115174 A EP 91115174A EP 0463642 A2 EP0463642 A2 EP 0463642A2
Authority
EP
European Patent Office
Prior art keywords
container
frame
assembly according
vaporizer
heater
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
EP19910115174
Other languages
German (de)
French (fr)
Other versions
EP0463642B1 (en
EP0463642A3 (en
Inventor
Jean-Michel Desperier
Michel Gautier
Pierre Perin
André Schwartz
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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
Priority claimed from FR8700753A external-priority patent/FR2610081B1/en
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to EP19910115174 priority Critical patent/EP0463642B1/en
Publication of EP0463642A2 publication Critical patent/EP0463642A2/en
Publication of EP0463642A3 publication Critical patent/EP0463642A3/en
Application granted granted Critical
Publication of EP0463642B1 publication Critical patent/EP0463642B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/086—Mounting arrangements for vessels for Dewar vessels or cryostats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0188—Hanging up devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/061—Level of content in the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached

Definitions

  • the present invention relates to the distribution of gases. More specifically, it relates to a gas delivery assembly comprising juxtaposable bottle baskets.
  • LGCs are small, generally cylindrical transportable evaporators fitted with an atmospheric vaporizer-heater. Their useful capacity is limited to 165 liters and their full weight is between 300 and 350 kg depending on the gas they contain. Their relatively small size makes it possible to handle them by hand and to integrate them easily into the traditional distribution circuits of compressed gas cylinders, so that they are exchanged "full against vacuum” like bottles.
  • LGCs are poorly integrated into the distribution circuits of bottles in baskets, because of the empty spaces between LGCs and baskets, difficulties of wedging which result therefrom, and as a result of the risk of damage to LGCs.
  • the object of the invention is to provide a gas delivery assembly allowing integrated delivery of cryogenic liquids by limiting gas losses for the user, without any problem of re-cooling or of fragility to shocks.
  • the subject of the invention is a gas delivery assembly, of the type comprising juxtaposed bottle baskets, characterized in that it also comprises at least one delivery and storage device for cryogenic liquid comprising a container for double envelope wedged in a parallelepipedic frame which completely surrounds the container and which is provided with handling means, this frame having, in plan, dimensions substantially equal to those of two or more juxtaposed bottle baskets.
  • the container is equipped with an atmospheric vaporizer-heater placed inside the frame, and also with operating accessories such as a filling pipe provided with a valve, safety and control and a rapid pressurization circuit, all these accessories being arranged inside the frame.
  • the device 1 shown in Figures 1 and 2 is intended for the storage of a cryogenic liquid, in particular an air gas (oxygen, nitrogen, argon) in liquefied form. It essentially comprises an external frame 2 and a double-envelope container 3 provided with the various accessories necessary for its operation. The container 3 and its accessories are entirely disposed inside the frame 2, which protects them from all sides.
  • a cryogenic liquid in particular an air gas (oxygen, nitrogen, argon) in liquefied form.
  • air gas oxygen, nitrogen, argon
  • the frame 2 has a generally parallelepiped shape and consists of metal beams fixed to each other so as to define a base 4 which has two horizontal lights 5 for the passage of a forklift fork, a vertical upright 6 in each corner , an upper spider 7 at the center of which is fixed a lifting ring 8, and intermediate crosspieces 9 serving to stiffen the assembly and to protect the container 3 and its accessories.
  • the container 3 is a conventional double envelope container for cryogenic liquid. It is wedged in frame 2 by pressing on a centering seat 10 secured to the base 4 and clamping by appropriate means (not shown) comprising for example straps and tensioning devices.
  • Frame 2 has, seen in plan, a rectangular shape.
  • the vaporizer 20 comprises four vertical tubes 22 with longitudinal fins 23, namely a pair of tubes connected by their lower ends in each of two adjacent angles of the frame. The top of one of these tubes is connected to line 19, and that of the associated tube is connected to the top of the first tube of the other pair, the last tube being connected by its top to the end piece 21.
  • frame 2 All the elements contained in frame 2 are suitably fixed to the latter by suitable means, not shown.
  • the device 1 is intended to be integrated in a mixed gas delivery system in gaseous and liquid forms which also comprises a set of basket baskets 24 all identical. More precisely, the plan dimensions of the frame are an exact multiple of those of a bottle basket.
  • each bottle basket is parallelepipedic and intended to contain eight bottles 25 of gas under pressure, and its base has the length a and the width b ; the base of frame 2 is small dimension a and for large dimension 2 b , so that the frame 2 has exactly the same size as two juxtaposed bottle baskets.
  • This makes it possible to fill the platform of a delivery truck 26 with both bottle baskets and devices 1 (three in number in the example shown) without loss of space and without stalling problem.
  • the container 3 can have a large capacity, for example 450 liters.
  • this large capacity makes it possible on the one hand to reduce the gas losses linked to the opening of the pressure limiting valves, and on the other hand to provide a non-withdrawable liquid residue, for example of the order from 5%, or from 5 to 10%, of the capacity of the container, and, consequently, to carry out "cold" filling.
  • the dip tube 3A used for withdrawing the liquid only descends, through the neck 13, to level N, and the tube 3B connected to the coil 16 for setting rapid pressure rises in container 3 to a point slightly above level N.
  • the device 1 therefore lends itself perfectly well to a "full against vacuum” exchange, in the same way as the bottles contained in the baskets 24.
  • a 450 liter container 3 propped with its accessories in a frame having dimensions a and 2 b close to 1 m and a height of the order of 2 m, provides a storage device 1 having a weight, when full, of the order of 1000 kg. Thanks to a non-bunkable reserve of 22.5 liters, the container can be kept cold for around 70 hours after the racking has stopped.
  • Another advantage of device 1 compared to LGCs lies in the fact that, since all the accessories are protected by frame 2, they are much easier and economical to produce. More specifically, the frame alone provides protection for the container and its accessories against impacts, without involving them in the mechanical strength of the assembly. Thus, the frame is designed to deform without the container being reached and, if its deformation is too great, it can be changed easily, because it is removable and interchangeable. Therefore, it has the additional advantage of being able to be adapted to the dimensions of the bottle baskets of each user.
  • the vaporizer-heater 20 may comprise tubes in each corner of the frame, or else be constituted by a tube wound in a helix around the container 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

This unit comprises, on the one hand, bottle baskets and, on the other hand, at least one double-casing vessel (3) wedged in a parallelepipedic frame (2) surrounding it completely and equipped with handling means (5, 8), this frame having the overall size of two or more bottle baskets. The invention is used for the supply of air gasses. <IMAGE>

Description

La présente invention est relative à la distribution des gaz. Elle concerne plus précisément un ensemble de livraison de gaz comprenant des paniers-bouteilles juxtaposables.The present invention relates to the distribution of gases. More specifically, it relates to a gas delivery assembly comprising juxtaposable bottle baskets.

La distribution des liquides cryogéniques, notamment des gaz de l'air liquéfiés, s'effectue par camions-citernes chez les utilisateurs disposant de récipients de stockage ou "évaporateurs" de grande capacité. Cependant, ce procédé s'adapte mal aux petits évaporateurs, qui nécessitent un matériel différent. C'est pourquoi, pour ces petits évaporateurs, on a proposé la technique des "LGC" (Liquid Gas Cylinder).Distribution of cryogenic liquids, in particular liquefied air gases, is carried out by tanker trucks to users with large capacity storage containers or "evaporators". However, this process is poorly suited to small evaporators, which require different equipment. This is why, for these small evaporators, the technique of "LGC" (Liquid Gas Cylinder) has been proposed.

Ces LGC sont de petits évaporateurs transportables de forme générale cylindrique munis d'un vaporiseur-réchauffeur atmosphérique. Leur capacité utile est limitée à 165 litres et leur poids plein est compris entre 300 et 350 kg suivant le gaz qu'ils contiennent. Leur taille relativement réduite permet de les manipuler à la main et de les intégrer facilement dans les circuits de distribution traditionnels des bouteilles de gaz comprimés, de sorte qu'ils sont échangés "plein contre vide" comme des bouteilles.These LGCs are small, generally cylindrical transportable evaporators fitted with an atmospheric vaporizer-heater. Their useful capacity is limited to 165 liters and their full weight is between 300 and 350 kg depending on the gas they contain. Their relatively small size makes it possible to handle them by hand and to integrate them easily into the traditional distribution circuits of compressed gas cylinders, so that they are exchanged "full against vacuum" like bottles.

Les LGC présentent cependant de sérieux inconvénients :

  • pour l'utilisateur : du fait de leur faible capacité, la vaporisation du liquide du fait des entrées de chaleur est importante lorsque les LGC sont presque vides. Si cette situation se produit le vendredi après-midi, la perte de gaz par ouverture de la soupape de limitation de pression est importante pendant le week-end.
  • pour le distributeur : les LGC sont trop petits pour que l'on puisse conserver un reliquat de liquide non soutirable. Par suite, ils doivent être remis en froid avant chaque remplissage.
LGCs have serious drawbacks, however:
  • for the user: due to their low capacity, vaporization of the liquid due to the heat inputs is important when the LGCs are almost empty. If this situation occurs on Friday afternoon, the loss of gas by opening the pressure relief valve is significant during the weekend.
  • for the distributor: the LGCs are too small for us to keep a non-squeezable liquid residue. Consequently, they must be put back in the cold before each filling.

De plus, les LGC s'intègrent mal dans les circuits de distribution de bouteilles en paniers, du fait des espaces vides entre LGC et paniers, des difficultés de calage qui en résultent et, par suite du risque d'endommagement des LGC.In addition, LGCs are poorly integrated into the distribution circuits of bottles in baskets, because of the empty spaces between LGCs and baskets, difficulties of wedging which result therefrom, and as a result of the risk of damage to LGCs.

L'invention a pour but de fournir un ensemble de livraison de gaz permettant la livraison intégrée de liquides cryogéniques en limitant les pertes de gaz pour l'utilisateur, sans problème de remise en froid ni de fragilité aux chocs.The object of the invention is to provide a gas delivery assembly allowing integrated delivery of cryogenic liquids by limiting gas losses for the user, without any problem of re-cooling or of fragility to shocks.

A cet effet, l'invention a pour objet un ensemble de livraison de gaz, du type comprenant des paniers-bouteilles juxtaposables, caractérisé en ce qu'il comprend également au moins un dispositif de livraison et de stockage de liquide cryogénique comprenant un récipient à double enveloppe calé dans un cadre parallélépipédique qui entoure complètement le récipient et qui est muni de moyens de manutention, ce cadre ayant, en plan, des dimensions sensiblement égales à celles de deux ou plusieurs paniers-bouteilles juxtaposés.To this end, the subject of the invention is a gas delivery assembly, of the type comprising juxtaposed bottle baskets, characterized in that it also comprises at least one delivery and storage device for cryogenic liquid comprising a container for double envelope wedged in a parallelepipedic frame which completely surrounds the container and which is provided with handling means, this frame having, in plan, dimensions substantially equal to those of two or more juxtaposed bottle baskets.

De façon avantageuse, le récipient est équipé d'un vaporiseur-réchauffeur atmosphérique disposé à l'intérieur du cadre, et également d'accessoires d'exploitation tels qu'une conduite de remplissage munie d'une vanne, des dispositifs de sécurité et de contrôle et un circuit de mise en pression rapide, tous ces accessoires étant disposés à l'intérieur du cadre.Advantageously, the container is equipped with an atmospheric vaporizer-heater placed inside the frame, and also with operating accessories such as a filling pipe provided with a valve, safety and control and a rapid pressurization circuit, all these accessories being arranged inside the frame.

Un exemple de réalisation d'un récipient suivant l'invention va maintenant être décrit en regard du dessin annexé, sur lequel :

  • la figure 1 est une vue en élévation, avec coupe partielle, d'un dispositif de stockage de liquide cryogénique conforme à l'invention ;
  • la figure 2 est une vue en plan de ce dispositif de stockage ; et
  • la figure 3 est une vue schématique en plan d'un véhicule effectuant une livraison mixte de paniers-bouteilles et de dispositifs suivant l'invention.
An example embodiment of a container according to the invention will now be described with reference to the appended drawing, in which:
  • Figure 1 is an elevational view, partly in section, of a cryogenic liquid storage device according to the invention;
  • Figure 2 is a plan view of this storage device; and
  • Figure 3 is a schematic plan view of a vehicle performing mixed delivery of bottle baskets and devices according to the invention.

Le dispositif 1 représenté aux figures 1 et 2 est destiné au stockage d'un liquide cryogénique, notamment d'un gaz de l'air (oxygène, azote, argon) sous forme liquéfiée. Il comprend essentiellement un cadre extérieur 2 et un récipient à double enveloppe 3 muni des divers accessoires nécessaires à son fonctionnement. Le récipient 3 et ses accessoires sont entièrement disposés à l'intérieur du cadre 2, qui les protège de tous côtés.The device 1 shown in Figures 1 and 2 is intended for the storage of a cryogenic liquid, in particular an air gas (oxygen, nitrogen, argon) in liquefied form. It essentially comprises an external frame 2 and a double-envelope container 3 provided with the various accessories necessary for its operation. The container 3 and its accessories are entirely disposed inside the frame 2, which protects them from all sides.

Le cadre 2 a une forme générale parallélipédique et est constitué de poutres métalliques fixées les unes aux autres de façon à définir un socle 4 qui présente deux lumières horizontales 5 pour le passage d'un fourche de chariot élévateur, un montant vertical 6 dans chaque coin, un croisillon supérieur 7 au centre duquel est fixé un anneau de levage 8, et des traverses intermédiaires 9 servant à rigidifier l'ensemble et à protéger le récipient 3 et ses accessoires.The frame 2 has a generally parallelepiped shape and consists of metal beams fixed to each other so as to define a base 4 which has two horizontal lights 5 for the passage of a forklift fork, a vertical upright 6 in each corner , an upper spider 7 at the center of which is fixed a lifting ring 8, and intermediate crosspieces 9 serving to stiffen the assembly and to protect the container 3 and its accessories.

Le récipient 3 est un récipient à double enveloppe classique pour liquide cryogénique. Il est calé dans le cadre 2 par appui sur une assise 10 de centrage solidaire du socle 4 et bridage par des moyens appropriés (non représentés) comprenant par exemple des sangles et des dispositifs tendeurs.The container 3 is a conventional double envelope container for cryogenic liquid. It is wedged in frame 2 by pressing on a centering seat 10 secured to the base 4 and clamping by appropriate means (not shown) comprising for example straps and tensioning devices.

Le récipient est équipé des divers accessoires nécessaires à son fonctionnement en tant qu'évaporateur, c'est-à-dire en tant qu'appareil capable de fournir sous forme gazeuse le produit qu'il contient. Ces accessoires, qui n'ont été représentés que partiellement dans un but de clarté du dessin, sont essentiellement :

  • une conduite de remplissage 12 reliée au col 13 du récipient et pourvue d'une vanne 14, cette conduite ayant été ramenée dans le plan du dessin sur la figure 1 ;
  • un ensemble 15 de sécurité et de contrôle, comprenant notamment un manomètre, un disque de rupture et une soupape de limitation de pression;
  • un dispositif de mise en pression rapide comprenant un serpentin vaporiseur atmosphérique auxiliaire 16 disposé autour de l'assise 10 et communiquant en amont avec le fond du récipient et en aval avec une conduite 17 (figure 2) équipée d'un régulateur de pression 18 et débouchant dans le col 13 ;
  • une conduite de soutirage 19 qui sort du récipient 3 par le col 13 ; et
  • un vaporiseur-réchauffeur atmosphérique principal 20 relié en amont à la conduite 19 et en aval à un embout 21 auquel peut se raccorder une conduite d'utilisation (non représentée).
The container is equipped with the various accessories necessary for its operation as an evaporator, that is to say as an apparatus capable of supplying the product it contains in gaseous form. These accessories, which have only been shown partially for the sake of clarity of the drawing, are essentially:
  • a filling line 12 connected to the neck 13 of the container and provided with a valve 14, this line having been brought back in the plane of the drawing in FIG. 1;
  • a safety and control assembly 15, comprising in particular a pressure gauge, a rupture disc and a pressure limiting valve;
  • a rapid pressurizing device comprising an auxiliary atmospheric vaporizing coil 16 disposed around the seat 10 and communicating upstream with the bottom of the container and downstream with a pipe 17 (FIG. 2) equipped with a pressure regulator 18 and opening into the neck 13;
  • a withdrawal line 19 which leaves the container 3 through the neck 13; and
  • a main atmospheric vaporizer-heater 20 connected upstream to the pipe 19 and downstream to a nozzle 21 to which a use pipe can be connected (not shown).

Le cadre 2 a, vu en plan, une forme rectangulaire. Dans l'exemple représenté, les deux côtés du rectangle sont légèrement différents. Le vaporiseur 20 comprend quatre tubes verticaux 22 à ailettes longitudinales 23, à savoir une paire de tubes reliés par leur extrémité inférieure dans chacun de deux angles adjacents du cadre. Le sommet d'un de ces tubes est relié à la conduite 19, et celui du tube associé est relié au sommet du premier tube de l'autre paire, le dernier tube étant relié par son sommet à l'embout 21.Frame 2 has, seen in plan, a rectangular shape. In the example shown, the two sides of the rectangle are slightly different. The vaporizer 20 comprises four vertical tubes 22 with longitudinal fins 23, namely a pair of tubes connected by their lower ends in each of two adjacent angles of the frame. The top of one of these tubes is connected to line 19, and that of the associated tube is connected to the top of the first tube of the other pair, the last tube being connected by its top to the end piece 21.

Tous les éléments contenus dans le cadre 2 sont convenablement fixés à ce dernier par des moyens appropriés non représentés.All the elements contained in frame 2 are suitably fixed to the latter by suitable means, not shown.

Comme on le voit à la figure 3, le dispositif 1 est destiné à être intégré dans un système de livraison mixte de gaz sous formes gazeuse et liquide qui comprend également un ensemble de paniers-bouteilles 24 tous identiques. Plus précisément, les dimensions en plan du cadre sont un multiple exact de celles d'un panier-bouteilles. Dans cet exemple, chaque panier-bouteilles est parallélépipédique et destiné à contenir huit bouteilles 25 de gaz sous pression, et sa base a pour longueur a et pour largeur b ; la base du cadre 2 a pour petite dimension a et pour grande dimension 2b , de sorte que le cadre 2 a exactement le même encombrement que deux paniers-bouteilles juxtaposés. Ceci permet de remplir la plate-forme d'un camion de livraison 26 avec à la fois des paniers-bouteilles et des dispositifs 1 (au nombre de trois dans l'exemple représenté) sans perte de place et sans problème de calage.As seen in Figure 3, the device 1 is intended to be integrated in a mixed gas delivery system in gaseous and liquid forms which also comprises a set of basket baskets 24 all identical. More precisely, the plan dimensions of the frame are an exact multiple of those of a bottle basket. In this example, each bottle basket is parallelepipedic and intended to contain eight bottles 25 of gas under pressure, and its base has the length a and the width b ; the base of frame 2 is small dimension a and for large dimension 2 b , so that the frame 2 has exactly the same size as two juxtaposed bottle baskets. This makes it possible to fill the platform of a delivery truck 26 with both bottle baskets and devices 1 (three in number in the example shown) without loss of space and without stalling problem.

De plus, grâce à l'utilisation d'un cadre rigide muni de moyens de manutention 5 et 8 qui permettent sa manipulation par les engins utilisés pour les paniers-bouteilles, le récipient 3 peut avoir une capacité importante, par exemple 450 litres. A son tour, cette grande capacité permet d'une part de réduire les pertes de gaz liées à l'ouverture des soupapes de limitation de pression, et d'autre part de prévoir un reliquat de liquide non soutirable, par exemple de l'ordre de 5%, ou de 5 à 10 %, de la capacité du récipient, et, par suite, de procéder à des remplissages "en froid". Pour garantir ce reliquat, correspondant à un niveau de remplissage prédéterminé N, le tube plongeur 3A servant au soutirage du liquide ne descend, à travers le col 13, que jusqu'au niveau N, et le tube 3B relié au serpentin 16 de mise en pression rapide s'élève dans le récipient 3 jusqu'à un point situé légèrement au-dessus du niveau N.In addition, thanks to the use of a rigid frame provided with handling means 5 and 8 which allow it to be handled by the machines used for the bottle baskets, the container 3 can have a large capacity, for example 450 liters. In turn, this large capacity makes it possible on the one hand to reduce the gas losses linked to the opening of the pressure limiting valves, and on the other hand to provide a non-withdrawable liquid residue, for example of the order from 5%, or from 5 to 10%, of the capacity of the container, and, consequently, to carry out "cold" filling. To guarantee this balance, corresponding to a predetermined filling level N, the dip tube 3A used for withdrawing the liquid only descends, through the neck 13, to level N, and the tube 3B connected to the coil 16 for setting rapid pressure rises in container 3 to a point slightly above level N.

Le dispositif 1 se prête donc parfaitement bien à un échange "plein contre vide", de la même manière que les bouteilles contenues dans les paniers 24.The device 1 therefore lends itself perfectly well to a "full against vacuum" exchange, in the same way as the bottles contained in the baskets 24.

A titre d'exemple numérique, un récipient 3 de 450 litres, calé avec ses accessoires dans un cadre ayant des dimensions a et 2b voisines de 1 m et une hauteur de l'ordre de 2 m, fournit un dispositif de stockage 1 ayant un poids, lorsqu'il est plein, de l'ordre de 1000 kg. Grâce à une réserve non soutirable de 22,5 litres, le récipient peut être conservé froid pendant 70 heures environ après l'arrêt du soutirage.As a digital example, a 450 liter container 3, propped with its accessories in a frame having dimensions a and 2 b close to 1 m and a height of the order of 2 m, provides a storage device 1 having a weight, when full, of the order of 1000 kg. Thanks to a non-bunkable reserve of 22.5 liters, the container can be kept cold for around 70 hours after the racking has stopped.

Un autre avantage de dispositif 1 par rapport aux LGC réside dans le fait que, comme tous les accessoires sont protégés par le cadre 2, ils sont beaucoup plus faciles et économiques à réaliser. Plus précisément, le cadre assure à lui seul la protection du récipient et de ses accessoires contre les chocs, sans faire participer ceux-ci à la résistance mécanique de l'ensemble. Ainsi, le cadre est conçu pour se déformer sans que le récipient ne soit atteint et, si sa déformation est trop importante, on peut le changer facilement, car il est démontable et interchangeable. De ce fait, il présente l'avantage supplémentaire de pouvoir être adapté aux dimensions des paniers-bouteilles de chaque utilisateur.Another advantage of device 1 compared to LGCs lies in the fact that, since all the accessories are protected by frame 2, they are much easier and economical to produce. More specifically, the frame alone provides protection for the container and its accessories against impacts, without involving them in the mechanical strength of the assembly. Thus, the frame is designed to deform without the container being reached and, if its deformation is too great, it can be changed easily, because it is removable and interchangeable. Therefore, it has the additional advantage of being able to be adapted to the dimensions of the bottle baskets of each user.

En variante, le vaporiseur-réchauffeur 20 peut comprendre des tubes dans chaque coin du cadre, ou bien être constitué par un tube enroulé en hélice autour du récipient 3.As a variant, the vaporizer-heater 20 may comprise tubes in each corner of the frame, or else be constituted by a tube wound in a helix around the container 3.

Claims (11)

Ensemble de livraison de gaz, du type comprenant des paniers-bouteilles juxtaposables (24), caractérisé en ce qu'il comprend également au moins un dispositif de livraison et de stockage de liquide cryogénique comprenant un récipient à double enveloppe (3) calé dans un cadre parallélépipédique (2) qui entoure complètement le récipient et qui est muni de moyens de manutention (5,8), ce cadre ayant, en plan, des dimensions (a, 2b) sensiblement égales à celles de deux ou plusieurs paniers-bouteilles juxtaposés.Gas delivery assembly, of the type comprising juxtaposable bottle baskets (24), characterized in that it also comprises at least one delivery and storage device for cryogenic liquid comprising a double-envelope container (3) wedged in a parallelepiped frame (2) which completely surrounds the container and which is provided with handling means (5,8), this frame having, in plan, dimensions (a, 2b) substantially equal to those of two or more juxtaposed bottle baskets . Ensemble suivant la revendication 1, caractérisé en ce que le récipient (3) comprend une garde de liquide non soutirable, de préférence de l'ordre de 5 % de la capacité du récipient.Assembly according to claim 1, characterized in that the container (3) comprises a non-removable liquid guard, preferably of the order of 5% of the capacity of the container. Ensemble suivant la revendication 2, caractérisé en ce que le récipient (3) comprend un tube de soutirage de liquide (3A) qui descend jusqu'à un niveau (N) situé au-dessus du fond du récipient, et un tube de mise en pression (3B) qui s'élève jusqu'à un point situé à peu près à ce niveau.Assembly according to claim 2, characterized in that the container (3) comprises a liquid withdrawal tube (3A) which descends to a level (N) situated above the bottom of the container, and a delivery tube pressure (3B) which rises to a point approximately at this level. Ensemble suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de manutention comprennent un anneau de levage (8) et, à la base du cadre (2), des passages (5) pour une fourche de chariot élévateur.Assembly according to any one of Claims 1 to 3, characterized in that the handling means comprise a lifting ring (8) and, at the base of the frame (2), passages (5) for a forklift fork . Ensemble suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que le récipient (3) est équipé d'un vaporiseur-réchauffeur atmosphérique (20) disposé à l'intérieur du cadre (2).Assembly according to any one of Claims 1 to 4, characterized in that the container (3) is equipped with an atmospheric vaporizer-heater (20) arranged inside the frame (2). Ensemble suivant la revendication 5, caractérisé en ce que le vaporiseur-réchauffeur (20) comprend des tubes à ailettes verticaux (22) disposés dans des angles du cadre (2).Assembly according to Claim 5, characterized in that the vaporizer-heater (20) comprises tubes with vertical fins (22) arranged in corners of the frame (2). Ensemble suivant la revendication 6, caractérisé en ce que le vaporiseur-réchauffeur comprend des tubes à ailettes disposés dans les quatre angles du cadre.Assembly according to claim 6, characterized in that the vaporizer-heater comprises finned tubes arranged in the four corners of the frame. Ensemble suivant la revendication 6, notamment à cadre (2) à section droite rectangulaire, caractérisé en ce que le vaporiseur-réchauffeur (20) comprend au moins une paire de tubes à ailettes (22) branchés en série, disposés tous les deux dans un même angle du cadre (2).Assembly according to claim 6, in particular with a frame (2) of rectangular cross section, characterized in that the vaporizer-heater (20) comprises at least one pair of finned tubes (22) connected in series, both arranged in a same angle of the frame (2). Ensemble suivant la revendication 5, caractérisé en ce que le vaporiseur-réchauffeur comprend un tube enroulé en hélice autour du récipient (3).Assembly according to claim 5, characterized in that the vaporizer-heater comprises a tube wound in a helix around the container (3). Ensemble suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que le récipient (3) est équipé d'accessoires d'exploitation tels qu'une conduite de remplissage (12) munie d'une vanne (14), des dispositifs de sécurité et de contrôle (15) et un circuit de mise en pression rapide (16 à 18), tous ces accessoires étant disposés à l'intérieur du cadre (2).Assembly according to any one of Claims 1 to 9, characterized in that the container (3) is equipped with operating accessories such as a filling line (12) provided with a valve (14), devices security and control (15) and a rapid pressurization circuit (16 to 18), all these accessories being arranged inside the frame (2). Ensemble suivant l'une quelconque des revendications 1 à 10, caractérisé en ce que la capacité du récipient (3) est de l'ordre de 450 litres.Assembly according to any one of Claims 1 to 10, characterized in that the capacity of the container (3) is of the order of 450 liters.
EP19910115174 1987-01-23 1988-01-18 Gas delivery unit Expired - Lifetime EP0463642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19910115174 EP0463642B1 (en) 1987-01-23 1988-01-18 Gas delivery unit

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8700753A FR2610081B1 (en) 1987-01-23 1987-01-23 CRYOGENIC LIQUID STORAGE DEVICE
FR8700753 1987-01-23
EP19910115174 EP0463642B1 (en) 1987-01-23 1988-01-18 Gas delivery unit

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP88400086.0 Division 1988-01-18
EP19880400086 Division EP0280586B1 (en) 1987-01-23 1988-01-18 Gas delivery unit

Publications (3)

Publication Number Publication Date
EP0463642A2 true EP0463642A2 (en) 1992-01-02
EP0463642A3 EP0463642A3 (en) 1992-01-22
EP0463642B1 EP0463642B1 (en) 1993-08-18

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ID=26128997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910115174 Expired - Lifetime EP0463642B1 (en) 1987-01-23 1988-01-18 Gas delivery unit

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EP (1) EP0463642B1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130315A1 (en) * 1971-03-17 1972-11-03 Biever Robert
FR2274864A1 (en) * 1974-06-11 1976-01-09 Coal Industry Patents Ltd PNEUMATIC ENERGY GENERATOR
GB2033068A (en) * 1978-10-23 1980-05-14 Airco Inc Vaporiser
EP0104471B1 (en) * 1982-09-01 1987-04-08 Wulf Tempel Pallet for pressurized gas bottles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2130315A1 (en) * 1971-03-17 1972-11-03 Biever Robert
FR2274864A1 (en) * 1974-06-11 1976-01-09 Coal Industry Patents Ltd PNEUMATIC ENERGY GENERATOR
GB2033068A (en) * 1978-10-23 1980-05-14 Airco Inc Vaporiser
EP0104471B1 (en) * 1982-09-01 1987-04-08 Wulf Tempel Pallet for pressurized gas bottles

Also Published As

Publication number Publication date
EP0463642B1 (en) 1993-08-18
EP0463642A3 (en) 1992-01-22

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