WO2012032243A1 - Valve for a gas cylinder and corresponding cylinder and filling method - Google Patents

Valve for a gas cylinder and corresponding cylinder and filling method Download PDF

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Publication number
WO2012032243A1
WO2012032243A1 PCT/FR2011/051888 FR2011051888W WO2012032243A1 WO 2012032243 A1 WO2012032243 A1 WO 2012032243A1 FR 2011051888 W FR2011051888 W FR 2011051888W WO 2012032243 A1 WO2012032243 A1 WO 2012032243A1
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WO
WIPO (PCT)
Prior art keywords
downstream
gas
downstream portion
filling
upstream
Prior art date
Application number
PCT/FR2011/051888
Other languages
French (fr)
Inventor
Emmanuel Baune
Philippe Deck
Original Assignee
L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation 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 L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude filed Critical L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
Priority to EP11757388.1A priority Critical patent/EP2614289A1/en
Publication of WO2012032243A1 publication Critical patent/WO2012032243A1/en

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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
    • F17C13/04—Arrangement or mounting of 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbone dioxide
    • 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
    • F17C2221/01—Pure fluids
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • 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
    • 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
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/041—Stratification
    • 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
    • F17C2250/0636—Flow or movement of content
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids

Definitions

  • the present invention relates to a corresponding gas bottle valve, bottle and filling method.
  • the invention more particularly relates to a pressurized gas cylinder valve comprising a body having a base intended to be fixed in the orifice of a pressurized gas bottle, the body comprising an internal filling circuit extending between a upstream end opening outwardly of the body for receiving a gas distribution tool and a downstream end opening at the base for communicating, in mounted position, with the internal volume of a reservoir.
  • the known techniques for filling (filling) gas mixtures consist in either introducing synchronously the constituents of the mixture or making sequential introductions of the constituents. In the latter case, the homogeneity of the mixture obtained can be more or less satisfactory.
  • the conditioning installation to be implemented may have a first buffer capacity of the gas A and a second buffer capacity of the gas B.
  • the homogenization of the mixture is particularly difficult.
  • Another known technique is to fill the gases in the order of increasing molar masses.
  • one technique is to use supercritical CO2 during filling.
  • the bottles are rotated after conditioning to achieve internal homogenization. All these known techniques are very often empirical, local, partial, and none gives total satisfaction (need to use a complex apparatus, need to use a large workforce, little guarantee on the quality of homogenization. ..).
  • the volume of gas B is then introduced very slowly, according to a laminar regime. In this way a perfect stratification is obtained and the homogeneity of the mixture can not be obtained.
  • the volume of gas B is introduced more rapidly than in the first case, according to a more turbulent flow regime.
  • the mixture can be guaranteed with better homogeneity.
  • the volume of gas B is introduced fractionally, which corresponds to the discharge of a buffer capacity in several times (three times for example). In this case the mixing can be guaranteed with even better homogeneity.
  • a fourth case would consist of alternately mixing certain fractions of gas A and gas B. technique called "sandwich" can further improve the homogeneity.
  • a dip tube is used inside the bottle connected to the valve, to ensure better homogeneity regardless of the filling procedure chosen from the four cases above.
  • the filling installation can comprise a high-pressure pump, a buffer capacity, a valve and a line with dimensions adapted to the volumes of bottles to be filled, for a mixture in a bottle of 50 liters (water volume) at 200 bar of water.
  • % CO2 in Argon According to the first case above, a real content analyzed is obtained immediately after filling 1 1 .53% of CO2 for an Argon filling time in 40 seconds on CO2 previously introduced into the bottle.
  • Document CN2360693 seems to describe a specific control valve for a pipeline containing a fuel gas, based on the rotation of a miniature engine by means of a gear change, and whose purpose is to ensure better safety of the engine.
  • the tap also has a Y shape to increase gas flow and reduce pressure drops.
  • An object of the present invention is to overcome all or some of the disadvantages of the prior art noted above.
  • valve according to the invention is essentially characterized in that the downstream portion of the internal filling circuit comprises, upstream of the end downstream, at least a section reduction from upstream to downstream.
  • embodiments of the invention may include one or more of the following features:
  • the downstream portion of the internal filling circuit does not comprise a functional member for controlling the flow of gas such as a valve
  • downstream portion of the internal filling circuit is rectilinear
  • downstream portion of the internal filling circuit comprises a gradual reduction of section from the upstream to the downstream
  • the downstream portion of the internal filling circuit has a section which decreases continuously over its entire length, the section ratio between the upstream end and the downstream end of the downstream portion is greater than one and preferably greater than 1, 5 and even more preferably greater than two,
  • the section ratio between the upstream end and the downstream end of the downstream portion is greater than three
  • the downstream portion has a length of between 20 mm and 180 mm, preferably between 30 and 120 mm.
  • the invention also relates to a gas cylinder provided with a valve according to any one of the above characteristics or below.
  • the bottle is generally cylindrical in shape and has a form factor of between two and twelve, preferably between three and eight,
  • downstream portion of the internal filling circuit is parallel or inclined with respect to the longitudinal axis of said reservoir
  • the invention also relates to a method for filling a bottle according to any one of the above characteristics or below with at least two distinct types of gas introduced successively to achieve a homogeneous mixture.
  • the invention may also relate to any alternative device or method comprising any combination of the above or below features.
  • the figure schematically illustrates a valve mounted in the orifice of a bottle 7 of gas under pressure.
  • the valve comprising a body 1 having a base 2 fixed in the orifice of the bottle 7 (for example by screwing).
  • the bottle is of cylindrical shape, for example a "B50" type bottle, whose water volume is 50 liters, the height is 1500 mm and the inside diameter is 1 95 mm, giving a form factor (ratio between its height and the diameter of the barrel) of 7.7.
  • the homogeneity of the gaseous mixture is increased inside the bottle after filling with the invention.
  • the advantages in terms of homogeneity of the mixtures are particularly important for bottles having a relatively large form, that is to say, classically for bottles of large volumes of water for which the form factor is generally higher.
  • the invention also advantageously applies to bottles of smaller dimensions (for example of the "B1 1" type) whose bottle height may be equal to 630 mm and the diameter to 165 mm, for a shape factor of 3.8.
  • the body 1 of the valve comprising an internal filling circuit 5 extending between an upstream end 3 opening out of the body 1 to receive a gas distribution tool and a downstream end 4 opening at the base 2.
  • the downstream end 4 thus communicates with the internal volume of a reservoir.
  • this orifice at the downstream end 4 is sized to meet the safety requirements and operational efficiency required for the gas conditioning of the bottle through the valve.
  • the filling circuit 5 is diagrammatically shaded in the figure and the gas flow control members of the filling circuit (such as valves, valves, filters ...) are not shown.
  • the filling circuit 5 comprises, for example, an upstream portion transverse to the vertical axis A of the valve (this vertical axis A is, for example, coincident with the longitudinal axis of the reservoir 7 in the mounted position).
  • the downstream portion 6 of the filling circuit 5 can in turn be substantially parallel to the vertical axis A tap.
  • the upstream end 3 may be oriented preferably perpendicularly to the vertical axis A tap, but can also be oriented parallel to it, or obliquely.
  • the downstream portion 6 of the filling circuit 5 located at or in the base comprises, upstream of the downstream end 4, at least a section reduction from upstream to the downstream.
  • the downstream portion 6 of the filling circuit 5 is preferably rectilinear.
  • the section reduction of the downstream portion 6 is for example progressive from upstream to downstream.
  • the downstream portion 6 of the filling circuit 5 has a section that decreases continuously over its entire length.
  • the section ratio between the upstream end and the downstream end of the downstream portion 6 is greater than one and preferably greater than 1, 5 and even more preferably greater than two or greater than three.
  • the invention makes it possible to accelerate the passage of the gas during filling of the bottle without resorting to a dip tube.
  • a bottle of cylindrical shape and form factor between 2 and 12, preferably between 3 and 8.
  • 0a be the diameter of the gas passage section on the upstream side of the valve, that is to say upstream of the downstream portion 6.
  • 0b be the diameter of the gas passage section on the downstream side of the downstream portion 6.
  • the ratio between the sections (0a / 0b) is greater than 1 which produces an increase in the rate (v2> v1) of introducing gas into the bottle. A depression thus occurs in the throttling channel where the gas passes.
  • downstream portion 6 of the filling circuit 5 is empty, that is to say does not include a functional member for controlling the flow of gas such as a valve, a filter or the like.
  • the present invention also makes it possible to overcome, or less significantly reduce, heavy homogenization procedures for the contents by handling the bottles. This then makes it possible in a non-negligible way to claim operational efficiency gains and to lower certain security requirements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a valve for a pressurised gas cylinder, comprising a body (1) including a base (2) intended to be secured in the opening of the pressurised gas cylinder, said body (1) comprising an internal filling circuit (5) extending between an upstream end (3) opening onto the exterior of the body (1) in order to receive a gas dispensing tool and a downstream end (4) opening at the above-mentioned base (2) in order, in the mounted position, to communicate with the internal volume of a tank. The invention is characterised in that the downstream portion (6) of the internal filling circuit (5) comprises, upstream of the downstream end (4), at least one reduction in cross-section in the downstream direction.

Description

Robinet pour bouteille de gaz, bouteille et procédé de remplissage correspondants  Gas bottle valve, bottle and corresponding filling method
La présente invention concerne un robinet pour bouteille de gaz, une bouteille et un procédé de remplissage correspondants. The present invention relates to a corresponding gas bottle valve, bottle and filling method.
L'invention concerne plus particulièrement un robinet pour bouteille de gaz sous pression comprenant un corps comportant une embase destinée à être fixée dans l'orifice d'une bouteille de gaz sous pression, le corps comprenant un circuit interne de remplissage s'étendant entre une extrémité amont débouchant à l'extérieur du corps pour recevoir un outil de distribution de gaz et une extrémité aval débouchant au niveau de l'embase pour communiquer, en position montée, avec le volume interne d'un réservoir.  The invention more particularly relates to a pressurized gas cylinder valve comprising a body having a base intended to be fixed in the orifice of a pressurized gas bottle, the body comprising an internal filling circuit extending between a upstream end opening outwardly of the body for receiving a gas distribution tool and a downstream end opening at the base for communicating, in mounted position, with the internal volume of a reservoir.
Les techniques connues de conditionnement (remplissage) de mélanges de gaz consistent soit à introduire de manière synchrone les constituants du mélange, soit à réaliser des introductions séquentielles des constituants. Dans ce dernier cas, l'homogénéité du mélange obtenu peut être plus ou moins satisfaisante.  The known techniques for filling (filling) gas mixtures consist in either introducing synchronously the constituents of the mixture or making sequential introductions of the constituents. In the latter case, the homogeneity of the mixture obtained can be more or less satisfactory.
En effet, pour réaliser un mélange gazeux de deux constituants A et B à une pression de service P déterminée il est possible d'utiliser une première source de gaz A, de densité dA et une seconde source du gaz B, de densité dB (avec par exemple dA inférieur à dB).  In fact, to produce a gaseous mixture of two constituents A and B at a determined operating pressure P, it is possible to use a first source of gas A, of density dA and a second source of gas B, of density dB (with for example dA less than dB).
L'installation de conditionnement à mettre en œuvre peut disposer d'une première capacité tampon du gaz A et d'une seconde capacité tampon du gaz B.  The conditioning installation to be implemented may have a first buffer capacity of the gas A and a second buffer capacity of the gas B.
Dans le cas où le mélange A+B comporte des constituants (A et B) dont les masses molaires sont très différentes, l'homogénéisation du mélange est particulièrement difficile. Pour augmenter l'homogénéisation du mélange, il est courant d'util iser des tubes plongeurs lors du rempl issage. Selon d'autres techniques connues les bouteilles remplies sont couchées par des opérateurs après remplissage pour favoriser le mélange.  In the case where the mixture A + B comprises constituents (A and B) whose molar masses are very different, the homogenization of the mixture is particularly difficult. To increase the homogenization of the mixture, it is common to use dip tubes during filling. According to other known techniques filled bottles are coated by operators after filling to promote mixing.
Une autre technique connue consiste à remplir les gaz dans l'ordre des masses molaires croissantes. Dans le cas du CO2, une technique consiste à utiliser du CO2 supercritique lors du remplissage.  Another known technique is to fill the gases in the order of increasing molar masses. In the case of CO2, one technique is to use supercritical CO2 during filling.
Selon d'autres solutions connues, les bouteilles sont mises en rotation après conditionnement pour réaliser l'homogénéisation interne. Toutes ces techniques connues sont très souvent empiriques, locales, partielles, et aucune ne donne totale satisfaction (nécessité d'utiliser un appareillage complexe, nécessité d'utiliser une grande main d'œuvre, peu de garantie sur la qualité de l'homogénéisation...). According to other known solutions, the bottles are rotated after conditioning to achieve internal homogenization. All these known techniques are very often empirical, local, partial, and none gives total satisfaction (need to use a complex apparatus, need to use a large workforce, little guarantee on the quality of homogenization. ..).
Pour illustrer ce problème d'homogénéisation on pourra prendre l'exemple d'un mélange de gaz A+ B, avec une teneur cible de 75% du gaz A et 25% du gaz B. D'une manière classique, le volume de gaz A doit être introduit en premier dans le réservoir si sa densité est plus faible et sa pression de vapeur saturante est plus forte.  To illustrate this problem of homogenization we can take the example of a mixture of gas A + B, with a target content of 75% of the gas A and 25% of the gas B. In a conventional manner, the volume of gas A must be introduced first into the tank if its density is lower and its saturation vapor pressure is higher.
Selon un premier cas, le volume de gaz B est ensu ite introdu it très lentement, selon un régime laminaire. De cette façon on obtient une parfaite stratification et l'homogénéité du mélange ne peut pas être obtenue.  In a first case, the volume of gas B is then introduced very slowly, according to a laminar regime. In this way a perfect stratification is obtained and the homogeneity of the mixture can not be obtained.
Selon un deuxième cas, le volume de gaz B est introduit plus rapidement que dans le premier cas, selon un régime d'écoulement plus turbulent. Dans ce cas le mélange peut être garanti avec une meilleure homogénéité.  According to a second case, the volume of gas B is introduced more rapidly than in the first case, according to a more turbulent flow regime. In this case the mixture can be guaranteed with better homogeneity.
Selon un troisième cas, le volume de gaz B est introduit de façon fractionnée, ce qui correspond à la décharge d'une capacité tampon en plusieurs fois (trois fois par exemple). Dans ce cas le mélange peut être garanti avec une homogénéité encore meilleure.  In a third case, the volume of gas B is introduced fractionally, which corresponds to the discharge of a buffer capacity in several times (three times for example). In this case the mixing can be guaranteed with even better homogeneity.
En considérant que les pressions de vapeur saturante des gaz A et B et que la pression de service de la bouteille soient compatibles avec ce mode de réalisation du mélange, un quatrième cas consisterait à mélanger alternativement certaines fractions de gaz A et de gaz B. Cette technique dit en « sandwich » permet d'améliorer encore l'homogénéité.  Considering that the saturation vapor pressures of the gases A and B and the operating pressure of the bottle are compatible with this embodiment of the mixture, a fourth case would consist of alternately mixing certain fractions of gas A and gas B. technique called "sandwich" can further improve the homogeneity.
Selon un cinquième cas, on utilise un tube plongeur à l'intérieur de la bouteille connecté à la valve, pour garantir une meilleure homogénéité quelle que soit la procédure de remplissage choisie parmi les quatre cas ci-dessus.  According to a fifth case, a dip tube is used inside the bottle connected to the valve, to ensure better homogeneity regardless of the filling procedure chosen from the four cases above.
Ces exemples ci-dessus peuvent être appliqués à un mélange CO2 (gaz A) et Argon (gaz B).  These examples above can be applied to a mixture of CO2 (gas A) and Argon (gas B).
L'installation de remplissage peut comporter une pompe haute pression, une capacité tampon, une vanne et une ligne aux dimensions adaptées aux volumes de bouteilles à remplir, pour un mélange dans une bouteille de 50 litres (volume en eau) à 200 bar de 18% CO2 dans de l'Argon. Selon le premier cas ci-dessus on obtient ainsi une teneur réelle analysée immédiatement après remplissage de 1 1 .53% en CO2 pour un temps de remplissage en Argon en 40 secondes sur du CO2 préalablement introduit dans la bouteille. The filling installation can comprise a high-pressure pump, a buffer capacity, a valve and a line with dimensions adapted to the volumes of bottles to be filled, for a mixture in a bottle of 50 liters (water volume) at 200 bar of water. % CO2 in Argon. According to the first case above, a real content analyzed is obtained immediately after filling 1 1 .53% of CO2 for an Argon filling time in 40 seconds on CO2 previously introduced into the bottle.
En comparaison, l'homogénéité est améliorée puisque la teneur mesurée en CO2 passe à 16.50% pour un temps de remplissage en Argon en 23 minutes (selon le cas 2 ci-dessus).  In comparison, the homogeneity is improved since the measured CO2 content increases to 16.50% for an Argon filling time in 23 minutes (as in case 2 above).
Avec le remplissage « en sandwich » on obtient une teneur réelle à seulement 6-9% dans le premier cas mesurée immédiatement après remplissage. En comparaison, pour le même mélange on obtient une teneur réelle à 14-16% selon le quatrième 4.  With the filling "in sandwich" one obtains a real content to only 6-9% in the first case measured immediately after filling. In comparison, for the same mixture a real content of 14-16% is obtained according to the fourth 4.
Le document CN2360693 semble décrire un robinet de contrôle spécifique pour pipeline contenant un gaz combustible, basé sur la mise en rotation d'un moteur miniature par le biais d'un changement de vitesse, et dont le but est d'assurer une meilleure sécurité de la tuyauterie. Le robinet dispose en outre d'une forme en Y permettant d'augmenter un débit de gaz et de réduire les chutes de pression.  Document CN2360693 seems to describe a specific control valve for a pipeline containing a fuel gas, based on the rotation of a miniature engine by means of a gear change, and whose purpose is to ensure better safety of the engine. piping. The tap also has a Y shape to increase gas flow and reduce pressure drops.
U n but d e l a présente invention est de pal l ier tout ou partie des inconvénients de l'art antérieur relevés ci-dessus.  An object of the present invention is to overcome all or some of the disadvantages of the prior art noted above.
A cette fin, le robinet selon l'invention, par ailleurs conforme à la définition générique qu'en donne le préambule ci-dessus, est essentiellement caractérisé en ce que la portion aval du circuit interne de remplissage comprend, en amont de l'extrémité aval, au moins une réduction de section de l'amont vers l'aval.  For this purpose, the valve according to the invention, moreover in accordance with the generic definition given in the preamble above, is essentially characterized in that the downstream portion of the internal filling circuit comprises, upstream of the end downstream, at least a section reduction from upstream to downstream.
Par ailleurs, des modes de réalisation de l'invention peuvent comporter l'une ou plusieurs des caractéristiques suivantes :  Furthermore, embodiments of the invention may include one or more of the following features:
- la portion aval du circuit interne de remplissage ne comprend pas d'organe fonctionnel de contrôle du flux de gaz tel qu'un clapet,  the downstream portion of the internal filling circuit does not comprise a functional member for controlling the flow of gas such as a valve,
- la portion aval du circuit interne de remplissage est rectiligne,  the downstream portion of the internal filling circuit is rectilinear,
- la portion aval du circuit interne de remplissage comprend une réduction de section progressive de l'amont vers l'aval,  the downstream portion of the internal filling circuit comprises a gradual reduction of section from the upstream to the downstream,
- la portion aval du circuit interne de remplissage a une section qui diminue de façon continue sur toute sa longueur, - le rapport de section entre l'extrémité amont et l'extrémité aval de la portion aval est supérieur à un et de préférence supérieur à 1 ,5 et encore plus préférentiellement supérieur à deux, the downstream portion of the internal filling circuit has a section which decreases continuously over its entire length, the section ratio between the upstream end and the downstream end of the downstream portion is greater than one and preferably greater than 1, 5 and even more preferably greater than two,
- le rapport de section entre l'extrémité amont et l'extrémité aval de la portion aval est supérieur à trois,  the section ratio between the upstream end and the downstream end of the downstream portion is greater than three,
- la portion aval a une longueur comprise entre 20mm et 180mm, de préférence entre 30 et 120mm.  the downstream portion has a length of between 20 mm and 180 mm, preferably between 30 and 120 mm.
L'invention concerne également une bouteille de gaz munie d'un robinet conforme à l'une quelconque des caractéristiques ci-dessus ou ci-après.  The invention also relates to a gas cylinder provided with a valve according to any one of the above characteristics or below.
Selon d'autres particularités possibles :  According to other possible features:
- la bouteille est de forme générale cylindrique et a un facteur de forme est compris entre deux et douze, de préférence entre trois et huit,  the bottle is generally cylindrical in shape and has a form factor of between two and twelve, preferably between three and eight,
- la portion aval du circuit interne de remplissage est parallèle ou inclinée par rapport à l'axe longitudinal dudit réservoir,  the downstream portion of the internal filling circuit is parallel or inclined with respect to the longitudinal axis of said reservoir,
L'invention concerne également un procédé de remplissage d'une bouteille conforme à l'une quelconque des caractéristiques ci-dessus ou ci-après avec au moins deux types de gaz distincts introduits successivement pour réaliser un mélange homogène.  The invention also relates to a method for filling a bottle according to any one of the above characteristics or below with at least two distinct types of gas introduced successively to achieve a homogeneous mixture.
L'invention peut concerner également tout dispositif ou procédé alternatif comprenant toute combinaison des caractéristiques ci-dessus ou ci-dessous.  The invention may also relate to any alternative device or method comprising any combination of the above or below features.
D'autres particularités et avantages apparaîtront à la lecture de la description ci-après, faite en référence à la figure unique qui représente une vue en coupe, schématique et partielle, illustrant la partie supérieure d'un réservoir muni d'un robinet selon un exemple de réalisation de l'invention.  Other features and advantages will appear on reading the following description, made with reference to the single figure which shows a sectional view, schematic and partial, illustrating the upper part of a tank with a valve according to a embodiment of the invention.
La figure illustre schématiquement un robinet monté dans l'orifice d'une bouteille 7 de gaz sous pression. Le robinet comprenant un corps 1 comportant une embase 2 fixée dans l'orifice de la bouteille 7 (par exemple par vissage).  The figure schematically illustrates a valve mounted in the orifice of a bottle 7 of gas under pressure. The valve comprising a body 1 having a base 2 fixed in the orifice of the bottle 7 (for example by screwing).
Classiquement la bouteille est de forme cylindrique, par exemple une bouteille de type « B50 », dont le volume en eau est de 50 litres, la hauteur est de 1 500mm et le diamètre intérieur est de 1 95mm, donnant un facteur de forme (rapport entre sa hauteu r et le d iamètre d u fût) de 7,7. Selon l'invention l'homogénéité du mélange gazeux est augmentée à l'intérieur de la bouteille après remplissage grâce à l'invention. Les avantages en terme d'homogénéité des mélanges sont particulièrement importants pour les bouteilles ayant un facteur de forme relativement important, c'est-à-dire classiquement pour les bouteilles de volumes en eau importants pour lesquelles le facteur de forme est généralement plus élevé. Cependant, l'invention s'applique avantageusement également à des bouteilles de plus faibles dimensions (par exemple du type « B1 1 ») dont la hauteur de la bouteille peut être égale à 630mm et le diamètre à 165mm, pour un facteur de forme de 3.8. Conventionally, the bottle is of cylindrical shape, for example a "B50" type bottle, whose water volume is 50 liters, the height is 1500 mm and the inside diameter is 1 95 mm, giving a form factor (ratio between its height and the diameter of the barrel) of 7.7. According to the invention the homogeneity of the gaseous mixture is increased inside the bottle after filling with the invention. The advantages in terms of homogeneity of the mixtures are particularly important for bottles having a relatively large form, that is to say, classically for bottles of large volumes of water for which the form factor is generally higher. However, the invention also advantageously applies to bottles of smaller dimensions (for example of the "B1 1" type) whose bottle height may be equal to 630 mm and the diameter to 165 mm, for a shape factor of 3.8.
Classiquement, le corps 1 du robinet comprenant un circuit 5 interne de remplissage s'étendant entre une extrémité amont 3 débouchant à l'extérieur du corps 1 pour recevoir un outil de distribution de gaz et une extrémité aval 4 débouchant au niveau de l'embase 2. L'extrémité aval 4 communique ainsi avec le volume interne d'un réservoir.  Conventionally, the body 1 of the valve comprising an internal filling circuit 5 extending between an upstream end 3 opening out of the body 1 to receive a gas distribution tool and a downstream end 4 opening at the base 2. The downstream end 4 thus communicates with the internal volume of a reservoir.
Bien entendu, cet orifice au niveau de l'extrémité aval 4 est dimensionné pour satisfaire les exigences de sécurité et d'efficacité opérationnelle requises pour le conditionnement en gaz de la bouteille au travers du robinet.  Of course, this orifice at the downstream end 4 is sized to meet the safety requirements and operational efficiency required for the gas conditioning of the bottle through the valve.
Par soucis de simplification, le circuit 5 de remplissage est schématisé de façon grisée à la figure et les organes de contrôle du flux de gaz du circuit de remplissage (tels que clapets, vannes, filtres...) ne sont pas représentés.  For the sake of simplification, the filling circuit 5 is diagrammatically shaded in the figure and the gas flow control members of the filling circuit (such as valves, valves, filters ...) are not shown.
Par soucis de simplification également les autres éléments du robinet ne sont pas représentés (circu it de soutirage du gaz, clapet, vanne, éventuel détendeur...). Le circuit 5 de remplissage comporte par exemple une portion amont transversale à l'axe A verticale du robinet (cet axe A vertical est par exemple confondu avec l'axe longitudinal du réservoir 7 en position montée).  For the sake of simplification also the other valve elements are not shown (circu it gas withdrawal, valve, valve, optional expander ...). The filling circuit 5 comprises, for example, an upstream portion transverse to the vertical axis A of the valve (this vertical axis A is, for example, coincident with the longitudinal axis of the reservoir 7 in the mounted position).
La portion aval 6 du circuit 5 de rempl issage peut quant à elle être sensiblement parallèle à l'axe A vertical du robinet.  The downstream portion 6 of the filling circuit 5 can in turn be substantially parallel to the vertical axis A tap.
L'extrém ité amont 3 peut être orientée de man ière préférentiel le perpendiculairement à l'axe A vertical du robinet, mais peut également être orientée parallèlement à celui-ci, voire en oblique.  The upstream end 3 may be oriented preferably perpendicularly to the vertical axis A tap, but can also be oriented parallel to it, or obliquely.
Selon une particularité de l'invention, la portion aval 6 du circu it 5 de remplissage située au niveau ou dans l'embase comprend, en amont de l'extrémité aval 4, au moins une réduction de section de l'amont vers l'aval.  According to a feature of the invention, the downstream portion 6 of the filling circuit 5 located at or in the base comprises, upstream of the downstream end 4, at least a section reduction from upstream to the downstream.
Comme représenté à la figure la portion aval 6 du circuit 5 de remplissage est de préférence rectiligne. La réduction de section de la portion aval 6 est par exemple progressive de l'amont vers l'aval. Par exemple, la portion aval 6 du circuit 5 de remplissage a une section qui diminue de façon continue sur toute sa longueur. As shown in the figure, the downstream portion 6 of the filling circuit 5 is preferably rectilinear. The section reduction of the downstream portion 6 is for example progressive from upstream to downstream. For example, the downstream portion 6 of the filling circuit 5 has a section that decreases continuously over its entire length.
Le rapport de section entre l'extrémité amont et l'extrémité aval de la portion aval 6 est supérieur à un et de préférence supérieur à 1 ,5 et encore plus préférentiellement supérieur à deux ou supérieur à trois.  The section ratio between the upstream end and the downstream end of the downstream portion 6 is greater than one and preferably greater than 1, 5 and even more preferably greater than two or greater than three.
L'invention permet d'accélérer le passage du gaz lors du remplissage de la bouteille sans recourir à un tube plongeur.  The invention makes it possible to accelerate the passage of the gas during filling of the bottle without resorting to a dip tube.
Soit une bouteille de forme cylindrique et de facteur de forme compris entre 2 et 12, de préférence entre 3 et 8.  Or a bottle of cylindrical shape and form factor between 2 and 12, preferably between 3 and 8.
Soit 0a le diamètre de la section de passage du gaz du côté amont du robinet, c'est-à-dire en amont de la portion 6 aval.  Let 0a be the diameter of the gas passage section on the upstream side of the valve, that is to say upstream of the downstream portion 6.
Soit 0b le diamètre de la section de passage du gaz du côté aval de la portion 6 aval.  Let 0b be the diameter of the gas passage section on the downstream side of the downstream portion 6.
Selon la solution proposée, le rapport entre les sections (0a/0b) est supérieur à 1 ce qui produit une augmentation de la vitesse (v2>v1 ) d'introduction d u gaz da ns la boutei l l e. Une dépression intervient ainsi dans le canal d'étranglement où passe le gaz.  According to the proposed solution, the ratio between the sections (0a / 0b) is greater than 1 which produces an increase in the rate (v2> v1) of introducing gas into the bottle. A depression thus occurs in the throttling channel where the gas passes.
Ceci permet d'accélérer (v2) la vitesse de passage (v1 ) des gaz introduits à l'intérieur de la bouteille 7 lorsque le robinet est traversé par le gaz. Cette augmentation de la vitesse d'introduction du gaz introduit B, augmente donc l'énergie cinétique correspondante. Ceci permet de projeter le gaz dans la bouteille sur une distance plus importante que selon l'art antérieur. Ceci favorise un mélange de gaz plus homogène lorsque des gaz sont remplis successivement.  This makes it possible to accelerate (v2) the speed of passage (v1) of the gases introduced inside the bottle 7 when the valve is traversed by the gas. This increase in the rate of introduction of the introduced gas B, therefore increases the corresponding kinetic energy. This makes it possible to project the gas into the bottle over a greater distance than according to the prior art. This promotes a more homogeneous gas mixture when gases are successively filled.
De préférence la portion aval 6 du circuit 5 de remplissage est vide, c'est-à- dire ne comprend pas d'organe fonctionnel de contrôle du flux de gaz tel qu'un clapet, un filtre ou autre.  Preferably the downstream portion 6 of the filling circuit 5 is empty, that is to say does not include a functional member for controlling the flow of gas such as a valve, a filter or the like.
La présente invention permet également de s'affranchir, ou moins d'alléger significativement de lourdes procédures d'homogénéisation du contenu par manipulation des bouteilles. Ceci permet alors de manière non négligeable de prétendre à des gains d'efficacité opérationnelle et d'abaisser certaines exigences sécuritaires.  The present invention also makes it possible to overcome, or less significantly reduce, heavy homogenization procedures for the contents by handling the bottles. This then makes it possible in a non-negligible way to claim operational efficiency gains and to lower certain security requirements.

Claims

REVENDICATIONS
1 . Robinet pour bouteille de gaz sous pression comprenant un corps (1 ) comportant une embase (2) destinée à être fixée dans l'orifice d'une bouteille de gaz sous pression, le corps (1 ) comprenant un circuit (5) interne de remplissage s'étendant entre une extrémité amont (3) débouchant à l'extérieur du corps (1 ) pour recevoir un outil de distribution de gaz et une extrémité aval (4) débouchant au niveau de l'embase (2) pour communiquer, en position montée, avec le volume interne d'un réservoir, caractérisé en ce que la portion aval (6) du circuit (5) interne de remplissage située au niveau de l'embase (2) comprend, en amont de l'extrémité aval (4), au moins une réduction de section de l'amont vers l'aval, la portion aval (6) du circuit (5) interne de remplissage étant rectiligne, la réduction de section étant progressive de l'amont vers l'aval. 1. Pressurized gas bottle tap comprising a body (1) having a base (2) intended to be fixed in the orifice of a pressurized gas bottle, the body (1) comprising an internal filling circuit (5) extending between an upstream end (3) opening out of the body (1) to receive a gas distribution tool and a downstream end (4) opening at the base (2) to communicate, in position mounted, with the internal volume of a tank, characterized in that the downstream portion (6) of the internal filling circuit (5) located at the base (2) comprises, upstream of the downstream end (4). ), at least a section reduction from upstream to downstream, the downstream portion (6) of the internal charging circuit (5) being rectilinear, the section reduction being progressive from upstream to downstream.
2. Robinet selon la revendication 1 , caractérisé en ce que la portion aval (6) du circuit (5) interne de remplissage comprenant la réduction de section est dépourvue de tout organe fonctionnel de contrôle du flux de gaz tel qu'un clapet ou un filtre.  2. Tap according to claim 1, characterized in that the downstream portion (6) of the internal filling circuit (5) comprising the section reduction is devoid of any functional body for controlling the flow of gas such as a valve or a filtered.
3. Robinet selon l'une quelconque des revendications 1 à 2, caractérisé en ce que la portion aval (6) du circuit (5) interne de remplissage a une section qui diminue de façon continue sur toute sa longueur.  3. Tap according to any one of claims 1 to 2, characterized in that the downstream portion (6) of the internal circuit (5) filling has a section which decreases continuously over its entire length.
4. Robinet selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le rapport de section entre l'extrémité amont et l'extrémité aval de la portion aval (6) est supérieur à un et de préférence supérieur à 1 ,5 et encore plus préférentiel lement supérieur à deux.  4. Tap according to any one of claims 1 to 3, characterized in that the section ratio between the upstream end and the downstream end of the downstream portion (6) is greater than one and preferably greater than 1, And even more preferentially greater than two.
5. Robinet selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le rapport de section entre l'extrémité amont et l'extrémité aval de la portion aval (6) est supérieur à trois.  5. Valve according to any one of claims 1 to 4, characterized in that the section ratio between the upstream end and the downstream end of the downstream portion (6) is greater than three.
6. Robinet selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la portion aval (6) a une longueur comprise entre 20mm et 6. Tap according to any one of claims 1 to 5, characterized in that the downstream portion (6) has a length between 20mm and
180mm, de préférence entre 30 et 120mm. 180mm, preferably between 30 and 120mm.
7. Bouteille de gaz munie d'un robinet conforme à l'une quelconque des revendications 1 à 6. 7. Gas cylinder provided with a valve according to any one of claims 1 to 6.
8. Bouteille selon la revendication 7, caractérisée en ce qu'elle est de forme générale cylindrique et a un facteur de forme est compris entre deux et douze, de préférence entre trois et huit. 8. Bottle according to claim 7, characterized in that it is generally cylindrical in shape and has a form factor of between two and twelve, preferably between three and eight.
9. Bouteille selon la revendication 7 ou 8, caractérisée en ce que la portion aval (6) du circuit (5) interne de remplissage est parallèle ou inclinée par rapport à l'axe longitudinal dudit réservoir.  9. Bottle according to claim 7 or 8, characterized in that the downstream portion (6) of the internal circuit (5) filling is parallel or inclined relative to the longitudinal axis of said tank.
10. Procédé de remplissage d'une bouteille conforme à l'une quelconque des revendications 7 à 9 avec au moins deux types de gaz distincts introduits successivement pour réaliser un mélange homogène.  10. A method of filling a bottle according to any one of claims 7 to 9 with at least two different types of gas introduced successively to achieve a homogeneous mixture.
PCT/FR2011/051888 2010-09-07 2011-08-09 Valve for a gas cylinder and corresponding cylinder and filling method WO2012032243A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11757388.1A EP2614289A1 (en) 2010-09-07 2011-08-09 Valve for a gas cylinder and corresponding cylinder and filling method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1057109A FR2964445B1 (en) 2010-09-07 2010-09-07 FAUCET FOR GAS BOTTLE, BOTTLE AND FILLING METHOD THEREOF
FR1057109 2010-09-07

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Publication Number Publication Date
WO2012032243A1 true WO2012032243A1 (en) 2012-03-15

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Country Link
EP (1) EP2614289A1 (en)
FR (1) FR2964445B1 (en)
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2360693Y (en) 1998-11-03 2000-01-26 陈伟 Special control valve for combustible gas
WO2001075355A1 (en) * 2000-03-30 2001-10-11 L'air Liquide Societe Anonyme A Directoire Et Con Seil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Valve assembly with or without integrated reducer for pressurised gas container
US20030131851A1 (en) * 2002-01-11 2003-07-17 Toshiaki Kikuchi Valve for use in high pressure gas containers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2892798B1 (en) * 2005-10-27 2011-02-18 Air Liquide ASSEMBLY COMPRISING A PRESSURIZED FLUID RESERVOIR AND A FILLING AND / OR STRAINING CONTROL DEVICE
ES2363298T3 (en) * 2007-06-05 2011-07-29 L'air Liquide-Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude GAS CONTROL DEVICE WITH PROTECTIVE COVER.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2360693Y (en) 1998-11-03 2000-01-26 陈伟 Special control valve for combustible gas
WO2001075355A1 (en) * 2000-03-30 2001-10-11 L'air Liquide Societe Anonyme A Directoire Et Con Seil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Valve assembly with or without integrated reducer for pressurised gas container
US20030131851A1 (en) * 2002-01-11 2003-07-17 Toshiaki Kikuchi Valve for use in high pressure gas containers

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FR2964445A1 (en) 2012-03-09
EP2614289A1 (en) 2013-07-17
FR2964445B1 (en) 2014-02-21

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