FR2853050A1 - Cryogenic container for storing products, especially biological products, under gas includes a layer of porous material on the bottom of an interior receptacle - Google Patents

Cryogenic container for storing products, especially biological products, under gas includes a layer of porous material on the bottom of an interior receptacle Download PDF

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Publication number
FR2853050A1
FR2853050A1 FR0303620A FR0303620A FR2853050A1 FR 2853050 A1 FR2853050 A1 FR 2853050A1 FR 0303620 A FR0303620 A FR 0303620A FR 0303620 A FR0303620 A FR 0303620A FR 2853050 A1 FR2853050 A1 FR 2853050A1
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FR
France
Prior art keywords
porous material
receptacle
products
interior
interior receptacle
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
FR0303620A
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French (fr)
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FR2853050B1 (en
Inventor
Cornelis Klok
Anthony Dallais
Jacques Llobet
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
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR0303620A priority Critical patent/FR2853050B1/en
Publication of FR2853050A1 publication Critical patent/FR2853050A1/en
Application granted granted Critical
Publication of FR2853050B1 publication Critical patent/FR2853050B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • F17C13/006—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure 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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
    • 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
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat 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
    • 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

Abstract

Cryogenic container for storing products under gas, comprising a housing (1) in which an interior receptacle (2) for receiving the products is in contact with a cryogen (10), includes a layer of porous material (12) on the bottom of the interior receptacle.

Description

La présente invention concerne les conteneurs cryogénique pour le 5The present invention relates to cryogenic containers for 5

stockage en phase gazeuse, du type comprenant, dans une enveloppe, un réceptacle intérieur ayant un fond et définissant un volume intérieur accessible de l'extérieur et destiné à recevoir des produits, au moins une paroi du  gas phase storage, of the type comprising, in an envelope, an interior receptacle having a bottom and defining an interior volume accessible from the exterior and intended to receive products, at least one wall of the

réceptacle étant en contact avec une réserve de cryogène.  receptacle being in contact with a cryogenic reserve.

Des conteneurs de ce type sont décrits dans EP-A-1 087 193, au nom de 10 la demanderesse, ainsi que dans EP-A-1 184 632 (Linde). Si ces agencements permettent d'éviter les risques de contamination croisée des produits biologiques rencontrés habituellement du fait de l'immersion dans un bain de cryogène liquide, les mises en place et retraits successifs de produits dans le volume intérieur ainsi que les entrées de chaleur inévitables peuvent amener une 15 recondensation du gaz se trouvant dans ce volume intérieur se traduisant par une accumulation progressive de gaz liquéfié à la base du volume intérieur plus froide que la partie supérieure de ce dernier.  Containers of this type are described in EP-A-1 087 193, on behalf of the applicant, as well as in EP-A-1 184 632 (Linde). If these arrangements make it possible to avoid the risks of cross contamination of the biological products usually encountered due to immersion in a bath of liquid cryogen, the successive placement and removal of products in the interior volume as well as the inevitable heat inputs may cause recondensation of the gas in this interior volume, resulting in a progressive accumulation of liquefied gas at the base of the interior volume which is cooler than the upper part of the latter.

La présente invention a pour objet de proposer un agencement évitant l'accumulation de gaz recondensé, réduisant ainsi encore les risques de 20 contamination croisée et favorisant une homogénéisation des températures dans le volume intérieur.  The object of the present invention is to provide an arrangement which avoids the accumulation of recondensed gas, thus further reducing the risks of cross-contamination and promoting homogenization of the temperatures in the interior volume.

Pour ce faire, selon une caractéristique de l'invention, le conteneur comporte une surface de matériau poreux disposée sur le fond du réceptacle central.  To do this, according to a characteristic of the invention, the container comprises a surface of porous material disposed on the bottom of the central receptacle.

Selon des caractéristiques plus particulières de l'invention: La surface est constituée d'éléments, typiquement de secteurs de matériau poreux, avantageusement disposées de façon amovible sur le fond du réceptacle central; Le matériau poreux est avantageusement constitué d'une plaque de 30 feutre en fibres à base de silicates de calcium.  According to more particular features of the invention: The surface consists of elements, typically of sectors of porous material, advantageously arranged in a removable manner on the bottom of the central receptacle; The porous material advantageously consists of a sheet of fiber felt based on calcium silicates.

La présente invention a également pour objet l'utilisation d'un tel conteneur pour le stockage en phase gazeuse de produits biologiques.  The present invention also relates to the use of such a container for the gas phase storage of biological products.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description suivante d'un mode de réalisation, donnée à titre illustratif mais nullement limitatif, faite en relation avec le dessin annexé, sur lequel: La figure unique est une vue schématique en coupe longitudinale d'un conteneur cryogénique selon l'invention.  Other characteristics and advantages of the present invention will emerge from the following description of an embodiment, given by way of illustration but in no way limiting, made in relation to the appended drawing, in which: The single figure is a schematic sectional view longitudinal of a cryogenic container according to the invention.

Dans le mode de réalisation de conteneur représenté sur la figure 1, on reconnaît une enveloppe externe auto-porteuse 1, un réceptacle intérieur métallique 2 disposé dans un réceptacle intermédiaire 3, enclos dans 10 l'enveloppe 1. Une virole supérieure 4 définit un passage d'accès au volume intérieur 5 formé par le réceptacle intérieur 2, les extrémités supérieures de l'enveloppe 1, du réceptacle intermédiaire 3 et du réceptacle intérieur 2 étant raccordées à la virole 4. Le passage d'accès formé par cette dernière et sélectivement obturable par un bouchon en matériau isolant 6 solidaire d'un 15 couvercle 7, permet l'accrochage de crochets 8 de support de racks de stockage 9 dans le volume intérieur 5.  In the embodiment of the container shown in FIG. 1, a self-supporting external envelope 1 is recognized, an internal metal receptacle 2 disposed in an intermediate receptacle 3, enclosed in the envelope 1. An upper ferrule 4 defines a passage of access to the interior volume 5 formed by the interior receptacle 2, the upper ends of the casing 1, of the intermediate receptacle 3 and of the interior receptacle 2 being connected to the ferrule 4. The access passage formed by the latter and selectively closable by a plug of insulating material 6 secured to a cover 7, allows hooking hooks 8 for supporting storage racks 9 in the interior volume 5.

Le volume entre les réceptacles intérieur 2 et intermédiaire 3 est, en utilisation en grande partie rempli de cryogène, typiquement d'azote liquide, introduit par un circuit d'alimentation non représenté.  The volume between the interior 2 and intermediate 3 receptacles is, in use largely filled with cryogen, typically liquid nitrogen, introduced by a supply circuit not shown.

Selon un aspect de l'invention, le fond 11, typiquement plat, du réceptacle intérieur 2, est revêtu d'une épaisseur de matière poreuse 12, typiquement constituée d'une série de surfaces élémentaires, typiquement de secteurs angulaires, disposées de façon amovible sur le fond 11 pour permettre leur mise en place dans le volume 5 et leur extraction lors d'une éventuelle 25 décontamination du conteneur.  According to one aspect of the invention, the bottom 11, typically flat, of the interior receptacle 2, is coated with a thickness of porous material 12, typically consisting of a series of elementary surfaces, typically of angular sectors, arranged in a removable manner on the bottom 11 to allow their placement in the volume 5 and their extraction during a possible decontamination of the container.

Le matériau poreux est typiquement une plaque de fibres de silicates de calcium d'une épaisseur non inférieure à 25 mm telles que celles commercialisées sous l'appellation " CALSIL ".  The porous material is typically a plate of calcium silicate fibers with a thickness of not less than 25 mm, such as those sold under the name "CALSIL".

Avec un tel agencement, les inventeurs ont constaté que le liquide 30 condensé s'écoulant sur la face interne de la paroi verticale du réceptacle intérieur 2 était adsorbé dans un premier temps dans la matière poreuse 12 mais que les entrées de chaleur (notamment par conduction à travers les racks de stockage 9) créent un gradient thermique dans le matériau à faible conductivité thermique de la surface poreuse 12 faisant ainsi que la couche supérieure de cette dernière soit à une température plus élevée que celle de l'azote liquide, c'est-à-dire sensiblement du fond 11. Ainsi, le liquide absorbé dans la matière poreuse et migrant par capillarité vers le sommet de cette dernière se revaporise 5 de sorte qu'il s'instaure au bas du réceptacle intérieur 2, un équilibre de condensation et de vaporisation limitant la quantité de liquide à une valeur inférieure à celle susceptible d'être globalement contenue dans la matière poreuse et empêchant donc de se former, dans le fond du réceptacle 2, un bain de liquide susceptible de rentrer en contact avec les produits entreposés dans le 10 réceptacle.  With such an arrangement, the inventors have found that the condensed liquid 30 flowing on the internal face of the vertical wall of the internal receptacle 2 was initially adsorbed in the porous material 12 but that the heat inputs (in particular by conduction through the storage racks 9) create a thermal gradient in the material with low thermal conductivity of the porous surface 12 so that the upper layer of the latter is at a higher temperature than that of liquid nitrogen, this is that is to say substantially from the bottom 11. Thus, the liquid absorbed in the porous material and migrating by capillarity towards the top of the latter re-evaporates 5 so that it is established at the bottom of the interior receptacle 2, a balance of condensation and vaporization limiting the amount of liquid to a value lower than that which may be globally contained in the porous material and therefore preventing from forming rmer, in the bottom of the receptacle 2, a bath of liquid capable of coming into contact with the products stored in the receptacle.

Quoique l'invention ait été décrite en relation avec un mode de réalisation particulier, elle ne s'en trouve pas limitée mais est susceptible de modifications et de variantes qui apparaîtront à l'homme du métier dans le cadre des  Although the invention has been described in relation to a particular embodiment, it is not limited thereto but is susceptible to modifications and variants which will appear to a person skilled in the art in the context of

revendications ci-après.claims below.

Claims (7)

REVENDICATIONS 1. Conteneur cryogénique pour le stockage en phase gazeuse, 5 comprenant, dans une enveloppe (1), un réceptacle intérieur (2) ayant un fond (11) et définissant un volume intérieur (5) accessible de l'extérieur et destiné à recevoir (9) des produits, au moins une paroi du réceptacle intérieur (2) étant en contact avec une réserve du cryogène (10), caractérisé en ce qu'il comporte une surface de matériau poreux (12) disposée sur le fond (11) du 10 réceptacle intérieur.  1. Cryogenic container for gas phase storage, 5 comprising, in an envelope (1), an interior receptacle (2) having a bottom (11) and defining an interior volume (5) accessible from the outside and intended to receive (9) of the products, at least one wall of the interior receptacle (2) being in contact with a reserve of the cryogen (10), characterized in that it comprises a surface of porous material (12) disposed on the bottom (11) of the 10 inner receptacle. 2. Conteneur selon la revendication 1, caractérisé en ce que la surface (12) est constituée de secteurs de matériau poreux.  2. Container according to claim 1, characterized in that the surface (12) consists of sectors of porous material. 3. Conteneur selon la revendication 2, caractérisé en ce que les bandes sont disposées de façon amovible sur le fond (11).  3. Container according to claim 2, characterized in that the strips are removably arranged on the bottom (11). 4. Conteneur selon l'une des revendications précédentes, caractérisé en ce que le matériau poreux est constitué d'une plaque en fibres de silicates de calcium (ou d'un fritté).  4. Container according to one of the preceding claims, characterized in that the porous material consists of a plate made of fibers of calcium silicates (or of a sinter). 5. Conteneur selon l'une des revendications précédentes, caractérisé en ce que la réserve de cryogène est formée au moins à la périphérie du 20 réceptacle intérieur (6).  5. Container according to one of the preceding claims, characterized in that the cryogen reserve is formed at least on the periphery of the interior receptacle (6). 6. Conteneur selon la revendication 5, caractérisé en ce que la réserve du cryogène est formée par un réceptacle intermédiaire (3) enclosant le réceptacle intérieur (2).  6. Container according to claim 5, characterized in that the cryogenic reserve is formed by an intermediate receptacle (3) enclosing the interior receptacle (2). 7. Utilisation d'un conteneur selon l'une des revendications 25 précédentes, pour le stockage en phase gazeuse de produits biologiques.  7. Use of a container according to one of the preceding claims, for the storage in the gas phase of biological products.
FR0303620A 2003-03-25 2003-03-25 CRYOGENIC CONTAINER FOR GAS STORAGE AND USE FOR STORAGE OF BIOLOGICAL PRODUCTS Expired - Fee Related FR2853050B1 (en)

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FR0303620A FR2853050B1 (en) 2003-03-25 2003-03-25 CRYOGENIC CONTAINER FOR GAS STORAGE AND USE FOR STORAGE OF BIOLOGICAL PRODUCTS

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FR0303620A FR2853050B1 (en) 2003-03-25 2003-03-25 CRYOGENIC CONTAINER FOR GAS STORAGE AND USE FOR STORAGE OF BIOLOGICAL PRODUCTS

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FR2853050A1 true FR2853050A1 (en) 2004-10-01
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933476A1 (en) * 2008-07-02 2010-01-08 Air Liquide Portable cryogenic container for shipping and transporting cryobiological samples, has reservoir with outer and inner walls, and porous mass formed from single piece directly cooperating with housing to maintain porous mass in housing
WO2014026744A3 (en) * 2012-08-16 2014-04-10 Linde Aktiengesellschaft Storage container
EP2534434A4 (en) * 2010-02-08 2017-09-20 Tokitae LLC Temperature-stabilized storage systems
US20180283769A1 (en) * 2017-03-29 2018-10-04 Bruker Biospin Ag Cryostat arrangement comprising a neck tube having a supporting structure and an outer tube surrounding the supporting structure to reduce the cryogen consumption
US11035807B2 (en) * 2018-03-07 2021-06-15 General Electric Company Thermal interposer for a cryogenic cooling system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411656A (en) * 1964-07-24 1968-11-19 Conch Int Methane Ltd Thermally insulated container for a liquiefied gas
CH469236A (en) * 1966-12-24 1969-02-28 Max Planck Gesellschaft Device for the continuous freezing of objects in a liquid bath of a cryostat and method for operating the device
US4218892A (en) * 1979-03-29 1980-08-26 Nasa Low cost cryostat
US6119465A (en) * 1999-02-10 2000-09-19 Mullens; Patrick L. Shipping container for storing materials at cryogenic temperatures
EP1087193A1 (en) * 1999-09-22 2001-03-28 L'air Liquide Société Anonyme pour l'étude et l'exploitation des procédés Georges Claude Cryogenic container with liquid nitrogen supply and utilisation for storing biological products

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411656A (en) * 1964-07-24 1968-11-19 Conch Int Methane Ltd Thermally insulated container for a liquiefied gas
CH469236A (en) * 1966-12-24 1969-02-28 Max Planck Gesellschaft Device for the continuous freezing of objects in a liquid bath of a cryostat and method for operating the device
US4218892A (en) * 1979-03-29 1980-08-26 Nasa Low cost cryostat
US6119465A (en) * 1999-02-10 2000-09-19 Mullens; Patrick L. Shipping container for storing materials at cryogenic temperatures
EP1087193A1 (en) * 1999-09-22 2001-03-28 L'air Liquide Société Anonyme pour l'étude et l'exploitation des procédés Georges Claude Cryogenic container with liquid nitrogen supply and utilisation for storing biological products

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2933476A1 (en) * 2008-07-02 2010-01-08 Air Liquide Portable cryogenic container for shipping and transporting cryobiological samples, has reservoir with outer and inner walls, and porous mass formed from single piece directly cooperating with housing to maintain porous mass in housing
EP2534434A4 (en) * 2010-02-08 2017-09-20 Tokitae LLC Temperature-stabilized storage systems
WO2014026744A3 (en) * 2012-08-16 2014-04-10 Linde Aktiengesellschaft Storage container
US20180283769A1 (en) * 2017-03-29 2018-10-04 Bruker Biospin Ag Cryostat arrangement comprising a neck tube having a supporting structure and an outer tube surrounding the supporting structure to reduce the cryogen consumption
US11035807B2 (en) * 2018-03-07 2021-06-15 General Electric Company Thermal interposer for a cryogenic cooling system

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