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EP3382259A1 - Gas delivery device with improved coupling system of the operating member - Google Patents

Gas delivery device with improved coupling system of the operating member Download PDF

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Publication number
EP3382259A1
EP3382259A1 EP18160304.4A EP18160304A EP3382259A1 EP 3382259 A1 EP3382259 A1 EP 3382259A1 EP 18160304 A EP18160304 A EP 18160304A EP 3382259 A1 EP3382259 A1 EP 3382259A1
Authority
EP
European Patent Office
Prior art keywords
gas
distribution device
gas distribution
housing
operating member
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
EP18160304.4A
Other languages
German (de)
French (fr)
Other versions
EP3382259B1 (en
Inventor
Philippe Rudnianyn
Pauline Giard
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
Publication of EP3382259A1 publication Critical patent/EP3382259A1/en
Application granted granted Critical
Publication of EP3382259B1 publication Critical patent/EP3382259B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2205/0329—Valves manually actuated
    • 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
    • F17C2205/0338—Pressure 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
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • 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
    • 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
    • F17C2223/036—Very high pressure (>80 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
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/015—Facilitating maintenance
    • 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
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing

Definitions

  • the invention relates to a gas distribution device, such as a valve block, for a gas container comprising an improved coupling system of the operating member to the movable driving element cooperating with the internal flow control system. .
  • valve block for controlling the flow of gas delivered, said gas being conveyed by one (or more) ) passage or internal gas circuit arranged in the body of the valve block and putting in fluidic communication a gas inlet port carried by a fixing piece connected to the gas container and an outlet port carried by a nozzle or outlet connector gas.
  • a gas expansion system is integrated in the valve block, ie in the case of an integrated pressure reducer valve or RDI, the RDI block is also used to control the pressure of the delivered gas.
  • an actuator typically a rotary operating wheel, allowing the user to select the desired gas flow via actuating member, in particular a rotational movement of the operating wheel which is positioned opposite for example a graduated flow rate scale or a flow indicator mark carried by the body of the valve block for example, when the graduated scale of flows is carried by the steering wheel itself.
  • the operating member then cooperates with a flow selection system, for example a series of calibrated orifices carried by a rotating disk or a rotary bell, for controlling or adjusting the gas flow rate to the desired value.
  • a flow selection system for example a series of calibrated orifices carried by a rotating disk or a rotary bell, for controlling or adjusting the gas flow rate to the desired value.
  • the operating member in particular the steering wheel
  • the valve block is secured to the valve block by being held in the correct position by one or more mechanical fasteners, including one or more screws, pins or the like.
  • the actuator is, from the moment of manufacture, precisely positioned relative to the graduated scale or to the flow indicator mark because otherwise the flow rate value that will be selected by activation of the operating member, in particular by rotating the steering wheel, does not correspond to the actual flow delivered by the valve block.
  • the service life of a valve block, in particular of an RDI block is long since it can reach a decade. During this lifetime, the operating member, such as an operating wheel, can be disassociated from the valve block, either accidentally, for example following an impact, or during a maintenance or maintenance operation requiring disassembly of the valve block, in particular of an RDI.
  • valve block If, during reassembly of the operating member, typically a rotary handwheel, on the valve block, its angular positioning is not correct, then the gas flow delivered by the valve block will again be different from the displayed flow rate. , which can lead to dangerous situations.
  • the problem that arises is to propose a gas distribution device, typically an improved valve block, which makes it possible to prevent a bad angular assembly of the flow control member, in particular a steering wheel. maneuvering, on the gas distribution device, typically the valve block.
  • the mounting operation of the flow control member must be simple and do not involve tools.
  • the disassembly and reassembly of the flow control member by unqualified personnel should not be possible, or when the flow control member has been unintentionally dissociated from the gas distribution device, typically the valve block, for example due to an impact.
  • the invention also relates to a gas container, in particular a gas cylinder, equipped with a gas distribution device according to the invention, in particular a valve block or RDI.
  • the invention also relates to a use of a gas container equipped with a gas distribution device according to the invention for storing or dispensing a gas or gas mixture.
  • the Figure 1 is a view of 3/4 of an embodiment of a gas distribution device according to the present invention, which is here of integrated pressure reducer valve type or RDI, where we see the steering wheel 2 fixed jointly to the main body 1 of said RDI, thanks to the coupling system of the invention, as explained below.
  • RDI integrated pressure reducer valve type
  • the RDI comprises a main body 1, for example of brass or stainless steel, crossed by an internal gas passage (not visible) for conveying a gas between a gas inlet port 12 carried by a fixing end 14 and a gas outlet port 13 carried by a nozzle or outlet fitting 15 to which may be connected a flexible gas conduit for example.
  • RDI that is to say an integrated pressure reducer valve
  • a gas expansion system which conventionally comprises an expansion valve and a valve seat.
  • This gas expansion system makes it possible to reduce the pressure of the gas to a desired value which can be, according to the chosen embodiment, adjustable by the user or else fixed, that is to say set at the factory and not modifiable. by the user, for example a pressure of relaxation of the order of 3 to 5 bar absolute. In this case, the expansion pressure is not modifiable and adjusted to about 4 bar abs.
  • the expanded gas is then conveyed to the outlet fitting 15 where it is delivered to the user at the desired pressure and flow rate.
  • the attachment end 14 (cf. Fig. 1 , 2 and 7 ) is threaded and cylindrical or frustoconical. It serves to fix the RDI to a gas container, typically the neck of a gas cylinder, containing the gas at high pressure, that is to say at a pressure of up to 200 to 300 bar abs, or more.
  • An operating member namely here a rotary wheel 2, for example polymer, is arranged mobile around the outlet fitting 15.
  • the steering wheel 2 and the outlet fitting 15 are coaxial.
  • the rotary flywheel 2 here carries a ring 16 carrying graduations 17 corresponding to gas flow rates, as well as gripping means, namely hollow and raised structures 18 allowing a user to grasp the steering wheel 2 between his fingers for rotate it and thus select the desired gas flow to be delivered by the outlet fitting 15.
  • the body of the steering wheel 2 has a general shape, seen from the front (cf. Fig. 1 ), circular periphery.
  • the main body 1 of the RDI further comprises other conventional members, including a pressure gauge 19 indicating the pressure of the gas after expansion by the expansion system integrated in the RDI, a filling plug etc ....
  • the rotary wheel 2 actually cooperates with an internal flow selection system 9, 10, as illustrated in FIG. Figures 5 to 7 which is arranged on the internal gas passage and which adjusts the gas flow rate to the desired value.
  • This flow selection system 9, 10 preferably comprises a disc 9 traversed by calibrated orifices 10; however, it could take other forms, such as a bell or other.
  • the disc 9 is fixed to the drive ring 3 so that a rotation of the ring 3 causes a rotation of the disc 9, which then makes it possible to move the calibrated orifices 10 and to put them opposite the internal passage 13 of gas, and so select the desired gas flow rate, since the caliber of each calibrated orifice 10 corresponds to a given flow rate value.
  • the disk assembly 9 / drive ring 3 is held in position in the body 1 of the RDI by a holding piece 11, also called a spacer, as illustrated in FIGS. Figures 4 and 8 .
  • This holding piece 11 comprises an axial expansion 12, visible on the Figures 5 and 8 which passes through the disc 9 with calibrated orifices 10.
  • the holding part 1 is traversed by at least one gas conduit 14, visible on the Figure 8 , placing in fluid communication the internal passage 13 of the body 1 and the outlet fitting 15.
  • the rotary wheel 2 rotates the disk 9 with calibrated orifices 10 of the flow selection system 9, 10, via the driving element 3 which is mobile in rotation, namely here a rotating drive ring.
  • the drive ring 3 is integral with the disc 9 with calibrated orifices 10.
  • the movable driving element 3 comprises abutment elements 4 protruding here on the outer surface 5 of the movable driving element 3, in particular on the outer peripheral surface of the drive ring. rotating, as illustrated in Figure 2 .
  • the operating member or flywheel 2 comprises housings 6, in which are housed in the abutment members 4 projecting carried by the outer peripheral surface 5 of the rotary drive ring 3 so as to retain the actuating member 2 fixedly secured to said movable driving element 3, that is to say here a drive ring, thus also to said main body 1 since the disc assembly 9 / driving ring 3 is maintained in position in the body 1 of the RDI by a holding member 11, as explained above.
  • a reverse configuration is possible and completely equivalent, namely that the housings 6 can be arranged in the outer peripheral surface 5 of the rotary drive ring 3, and the stop elements 4 can be arranged on the inner surface of the operating member or flywheel 2.
  • Such a reverse configuration is a second embodiment of a device according to the invention, in particular a valve or RDI.
  • the insertion of the abutment elements 4 into the housings 6 is preferentially by interlocking, that is to say by "clipping".
  • interlocking that is to say by "clipping”.
  • one or the elements are deformed so that the abutment elements 4 forming male parts can be inserted into the recesses 6 forming cavities or female parts.
  • the actuator or flywheel 2 comprises a flange 7 carrying said housing 6, which is arranged on its inner face, that is to say the face of the wheel 2 directed towards the body 1 of the RDI.
  • the housings 6 are angularly distributed over all or part of the collar 7, as visible on the Figures 1 , 3 and 4 .
  • the flange 7 is coaxial with the gas outlet connector 15 when the steering wheel 2 is attached to the RDI.
  • any disassembly of the flywheel 2 causes destruction of the wall elements 8.
  • These wall elements 8 each form a zone of deformation and rupture which is designed and dimensioned to break during any attempt to disassemble the flywheel 2 of the drive ring 3.
  • the assembly of the operating wheel 2 and the drive ring 3 is only possible in a single angular position.
  • an angular indexing system 23, 24 comprising, for example, complementary shapes in the assembly zone of the two parts, namely a tongue 23 fitted on the drive ring 3 cooperating with a groove 24. present on the steering wheel 2, as visible in Figure 4 .
  • the tongue 23 can be housed only in the groove 24, thus imposing a single angular positioning.
  • the use of several tongues 23 and grooves 24 makes it possible to better distribute the stresses to be transmitted when the handwheel 2 is being handled by the user.

Landscapes

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

Abstract

L'invention concerne un dispositif de distribution de gaz comprenant un corps principal (1) traversé par un passage interne de gaz (13) servant à acheminer un gaz et un organe de manoeuvre (2) mobile coopérant avec un système de sélection de débit (9) agencé sur le passage interne de gaz, l'organe de manoeuvre (2) étant solidarisé audit corps principal (1) et manoeuvrable par un utilisateur pour sélectionner un débit de gaz désiré. L'organe de manoeuvre (2) coopère avec le système de sélection de débit (9) par l'intermédiaire d'un élément d'entrainement mobile (3). L'organe de manoeuvre (2) comprend au moins un logement (6) et l'élément d'entrainement mobile (3) comprend au moins un élément de butée (4) faisant saillie sur une surface (5) dudit élément d'entrainement mobile (3), ou, selon le cas, l'élément d'entrainement mobile (3) comprend au moins un logement (6) et l'organe de manoeuvre (2) comprend comprenant au moins un élément de butée (4) faisant saillie sur une surface (5) dudit organe de manoeuvre (2). Ledit au moins un élément de butée (4) vient se loger dans ledit au moins un logement (6) pour retenir l'organe de manoeuvre (2) fixé solidairement audit corps principal (1). Récipient de gaz, en particulier une bouteille de gaz, équipé d'un tel dispositif de distribution de gaz, en particulier un bloc robinet ou RDI. Utilisation pour stocker ou distribuer un gaz ou mélange gazeux

Figure imgaf001
The invention relates to a gas distribution device comprising a main body (1) traversed by an internal gas passage (13) for conveying a gas and a movable actuating member (2) cooperating with a flow selection system ( 9) arranged on the internal gas passage, the operating member (2) being secured to said main body (1) and operable by a user to select a desired gas flow. The operating member (2) cooperates with the flow selection system (9) via a movable driving element (3). The operating member (2) comprises at least one housing (6) and the movable driving element (3) comprises at least one abutment element (4) projecting from a surface (5) of said driving element mobile (3), or, as the case may be, the movable driving element (3) comprises at least one housing (6) and the operating member (2) comprises at least one stop element (4) making projecting on a surface (5) of said operating member (2). Said at least one abutment element (4) is housed in said at least one housing (6) for retaining the operating member (2) fixedly secured to said main body (1). Gas container, in particular a gas cylinder, equipped with such a gas distribution device, in particular a valve block or RDI. Use for storing or dispensing a gas or gas mixture
Figure imgaf001

Description

L'invention porte sur un dispositif de distribution de gaz, tel un bloc robinet, pour récipient de gaz comprenant un système de couplage amélioré de l'organe de manoeuvre à l'élément d'entrainement mobile coopérant avec le système de réglage du débit interne.The invention relates to a gas distribution device, such as a valve block, for a gas container comprising an improved coupling system of the operating member to the movable driving element cooperating with the internal flow control system. .

Il est usuel d'équiper les récipients de gaz, telles les bouteilles ou bonbonnes de gaz, d'un bloc robinet, parfois appelé simplement « robinet », destiné à contrôler le débit de gaz délivré, ledit gaz étant acheminé par un (ou plusieurs) passage ou circuit de gaz interne agencé dans le corps du bloc robinet et mettant en communication fluidique un orifice d'entrée de gaz porté par un embout de fixation raccordé au récipient de gaz et un orifice de sortie porté par un embout ou raccord de sortie de gaz. Lorsqu'un système de détente de gaz est intégré au bloc robinet, c'est-à-dire dans le cas d'un robinet à détendeur intégré ou RDI, le bloc RDI sert aussi à contrôler la pression du gaz délivré.It is customary to equip the gas containers, such as bottles or gas cylinders, with a valve block, sometimes called simply "valve", for controlling the flow of gas delivered, said gas being conveyed by one (or more) ) passage or internal gas circuit arranged in the body of the valve block and putting in fluidic communication a gas inlet port carried by a fixing piece connected to the gas container and an outlet port carried by a nozzle or outlet connector gas. When a gas expansion system is integrated in the valve block, ie in the case of an integrated pressure reducer valve or RDI, the RDI block is also used to control the pressure of the delivered gas.

Pour ce faire, il est connu d'agencer sur le bloc robinet (i.e., RDI ou robinet simple), un organe de manoeuvre, typiquement un volant de manoeuvre rotatif, permettant à l'utilisateur de sélectionner le débit de gaz souhaité, via l'organe de manoeuvre, en particulier un mouvement de rotation du volant de manoeuvre qui vient se positionner en regard par exemple d'une échelle graduée de débits ou d'un repère indicateur de débit porté par le corps du bloc robinet par exemple, lorsque l'échelle graduée de débits est portée par le volant lui-même.To do this, it is known to arrange on the valve block (ie, RDI or single tap), an actuator, typically a rotary operating wheel, allowing the user to select the desired gas flow via actuating member, in particular a rotational movement of the operating wheel which is positioned opposite for example a graduated flow rate scale or a flow indicator mark carried by the body of the valve block for example, when the graduated scale of flows is carried by the steering wheel itself.

L'organe de manoeuvre coopère alors avec un système de sélection du débit, par exemple une série d'orifices calibrés portés par un disque rotatif ou une cloche rotative, servant à contrôler ou ajuster le débit du gaz à la valeur souhaitée.The operating member then cooperates with a flow selection system, for example a series of calibrated orifices carried by a rotating disk or a rotary bell, for controlling or adjusting the gas flow rate to the desired value.

Habituellement, l'organe de manoeuvre, en particulier le volant, est solidaire du bloc robinet en y étant maintenu en position correcte par un ou plusieurs éléments de fixation mécanique, notamment une ou des vis, goupilles ou analogues. Il est indispensable que l'organe de manoeuvre soit, dès sa fabrication, précisément positionné par rapport à l'échelle graduée ou au repère indicateur de débit car sinon la valeur de débit qui sera sélectionnée par activation de l'organe de manoeuvre, en particulier par rotation du volant, ne correspondra pas au débit réellement délivré par le bloc robinet.Usually, the operating member, in particular the steering wheel, is secured to the valve block by being held in the correct position by one or more mechanical fasteners, including one or more screws, pins or the like. It is essential that the actuator is, from the moment of manufacture, precisely positioned relative to the graduated scale or to the flow indicator mark because otherwise the flow rate value that will be selected by activation of the operating member, in particular by rotating the steering wheel, does not correspond to the actual flow delivered by the valve block.

Ainsi, les documents US-A-2008/0066817 , US-A-3949966 , EP-A-2827214 et US-A-5640997 enseignent différents modes de réalisation connus de dispositifs de distribution de gaz.Thus, the documents US-2008/0066817 , US Patent 3949966 , EP-A-2827214 and US Patent 5640997 teach various known embodiments of gas delivery devices.

La durée de vie d'un bloc robinet, en particulier d'un bloc RDI, est longue puisqu'elle peut atteindre une dizaine d'années. Or, durant cette durée de vie, l'organe de manoeuvre, tel un volant de manoeuvre, peut être dissocié du bloc robinet, soit accidentellement, par exemple suite à un choc, soit lors d'une opération d'entretien ou de maintenance nécessitant un démontage du bloc robinet, en particulier d'un RDI.The service life of a valve block, in particular of an RDI block, is long since it can reach a decade. During this lifetime, the operating member, such as an operating wheel, can be disassociated from the valve block, either accidentally, for example following an impact, or during a maintenance or maintenance operation requiring disassembly of the valve block, in particular of an RDI.

Si, lors du remontage de l'organe de manoeuvre, typiquement un volant rotatif, sur le bloc robinet, son positionnement angulaire n'est pas correct, alors le débit de gaz délivré par le bloc robinet sera, là encore, différent du débit affiché, ce qui peut conduire à des situations dangereuses.If, during reassembly of the operating member, typically a rotary handwheel, on the valve block, its angular positioning is not correct, then the gas flow delivered by the valve block will again be different from the displayed flow rate. , which can lead to dangerous situations.

Ainsi, si l'utilisateur règle un débit de gaz souhaité non-nul (> 0L/min) et que le débit réel de gaz délivré par le bloc robinet est nul (= 0L/min) ou très inférieur au débit de gaz souhaité, alors cette importante différence de débit peut engendrer des problèmes de santé lorsque le gaz est destiné à un patient ayant besoin de ce gaz dans le cadre d'un traitement thérapeutique.Thus, if the user sets a non-zero desired gas flow rate (> 0L / min) and the actual gas flow delivered by the valve block is zero (= 0L / min) or much lower than the desired gas flow rate, then this important difference in flow can cause health problems when the gas is intended for a patient in need of this gas as part of a therapeutic treatment.

De façon similaire, lorsqu'un utilisateur souhaite arrêter la délivrance de gaz, il règle le débit souhaité à 0 L/min en positionnant l'organe de manoeuvre face au repère correspondant à cette valeur nulle de débit. Or, si le débit réel délivré par le bloc robinet ne devient pas nul du fait d'un mauvais positionnement de l'organe de manoeuvre, alors la bouteille de gaz équipée de ce bloc robinet va se vider de son gaz dans des circonstances inappropriées, il peut en résulter une mise en danger de l'environnement immédiat de la bouteille, par exemple des risques d'anoxie si le gaz ne contient pas d'oxygène, d'explosion si le gaz est un gaz combustible ou comburant...Similarly, when a user wishes to stop the delivery of gas, he adjusts the desired flow rate to 0 L / min by positioning the operating member facing the mark corresponding to this zero flow value. However, if the actual flow delivered by the valve block does not become zero due to a poor positioning of the operating member, then the gas cylinder equipped with this valve block will be empty of its gas in inappropriate circumstances, it can result in endangering the immediate environment of the bottle, for example the risk of anoxia if the gas does not contain oxygen, explosion if the gas is a combustible gas or oxidizer ...

Au vu de cela, le problème qui se pose est de proposer un dispositif de distribution de gaz, typiquement un bloc robinet, amélioré permettant d'empêcher un mauvais montage angulaire de l'organe de contrôle du débit, en particulier d'un volant de manoeuvre, sur le dispositif de distribution de gaz, typiquement le bloc robinet. De préférence, l'opération de montage de l'organe de contrôle du débit doit être simple et ne pas faire intervenir d'outil. Avantageusement, le démontage et le remontage de l'organe de contrôle du débit par un personnel non qualifié ne doit pas être possible, ni lorsque l'organe de contrôle du débit a été dissocié involontairement du dispositif de distribution de gaz, typiquement du bloc robinet, par exemple du fait d'un choc.In view of this, the problem that arises is to propose a gas distribution device, typically an improved valve block, which makes it possible to prevent a bad angular assembly of the flow control member, in particular a steering wheel. maneuvering, on the gas distribution device, typically the valve block. Preferably, the mounting operation of the flow control member must be simple and do not involve tools. Advantageously, the disassembly and reassembly of the flow control member by unqualified personnel should not be possible, or when the flow control member has been unintentionally dissociated from the gas distribution device, typically the valve block, for example due to an impact.

La solution de l'invention concerne alors un dispositif de distribution de gaz comprenant :

  • un corps principal traversé par un passage interne de gaz servant à acheminer un gaz et
  • un organe de manoeuvre mobile coopérant avec un système de sélection de débit agencé sur le passage interne de gaz, l'organe de manoeuvre étant solidarisé audit corps principal et manoeuvrable par un utilisateur pour sélectionner un débit de gaz désiré,
caractérisé en ce que :
  • l'organe de manoeuvre coopère avec le système de sélection de débit par l'intermédiaire d'un élément d'entrainement mobile,
  • l'organe de manoeuvre comprend au moins un logement, de préférence plusieurs logements, et l'élément d'entrainement mobile comprend au moins un élément de butée, de préférence plusieurs éléments de butée, faisant saillie sur une surface dudit élément d'entrainement mobile, ou l'élément d'entrainement mobile comprend au moins un logement de préférence plusieurs logements, et l'organe de manoeuvre comprend comprenant au moins un élément de butée de préférence plusieurs éléments de butée, faisant saillie sur une surface dudit organe de manoeuvre, et
  • ledit au moins un élément de butée vient se loger dans ledit au moins un logement pour retenir l'organe de manoeuvre fixé solidairement audit corps principal, de préférence plusieurs éléments de butée viennent se loger dans plusieurs logements pour retenir l'organe de manoeuvre fixé solidairement audit élément d'entrainement mobile, c'est-à-dire aussi au corps principal.
The solution of the invention then relates to a gas distribution device comprising:
  • a main body traversed by an internal gas passage for conveying a gas and
  • a movable operating member cooperating with a flow selection system arranged on the internal gas passage, the operating member being secured to said main body and operable by a user to select a desired gas flow,
characterized in that
  • the operating member cooperates with the flow selection system via a movable driving element,
  • the actuating member comprises at least one housing, preferably a plurality of housings, and the movable driving element comprises at least one abutment element, preferably a plurality of abutment elements, projecting from a surface of said movable driving element. or the movable driving element comprises at least one housing, preferably several housings, and the actuating member comprises at least one abutment element, preferably several abutment elements, protruding from a surface of said actuator, and
  • said at least one abutment member is housed in said at least one housing for retaining the operating member fixedly secured to said main body, preferably a plurality of abutment elements are housed in a plurality of housings for retaining the actuating member fixed jointly said mobile training element, that is to say also to the main body.

Selon le cas, le dispositif de distribution de gaz de l'invention peut comprendre l'une ou plusieurs des caractéristiques techniques suivantes :

  • l'organe de manoeuvre coopère avec le système de sélection de débit par l'intermédiaire d'un élément d'entrainement mobile, l'élément d'entrainement mobile comprenant au moins un élément de butée faisant saillie sur une surface externe dudit élément d'entrainement mobile.
  • l'organe de manoeuvre comprend au moins un logement, ledit au moins un élément de butée venant se loger dans ledit au moins un logement pour retenir l'organe de manoeuvre fixé solidairement audit corps principal.
  • l'élément d'entrainement mobile comprenant plusieurs éléments de butée faisant saillie sur la surface externe dudit élément d'entrainement mobile.
  • l'élément d'entraînement mobile comprend une bague d'entraînement rotative portant les éléments de butée en saillie.
  • les éléments de butée en saillie sont angulairement répartis sur au moins une partie de la périphérie externe de la bague d'entrainement rotative.
  • le nombre de logements est préférentiellement égal au nombre d'éléments de butée.
  • le nombre de logements est préférentiellement compris entre 2 et 12.
  • le nombre d'éléments de butée est préférentiellement compris entre 2 et 12.
  • l'organe de manoeuvre comprend plusieurs logements.
  • l'organe de manoeuvre comprend une collerette portant lesdits logements.
  • les logements sont angulairement répartis sur au moins une partie de la collerette.
  • le ou lesdits logements sont bordés par un ou des éléments de paroi forment chacun une zone de déformation et de rupture conçue pour se briser lors d'un désassemblage l'organe de manoeuvre de l'élément d'entrainement mobile.
  • l'organe de manoeuvre est un volant de manoeuvre rotatif.
  • le système de sélection de débit comprenant des orifices calibrés.
  • un système d'indexation angulaire est aménagé sur l'organe de manoeuvre et l'élément d'entrainement mobile.
  • le système d'indexation angulaire comprend des formes complémentaires comprenant au moins une languette aménagée sur l'élément d'entrainement mobile coopérant avec au moins une rainure aménagée sur l'organe de manoeuvre.
  • le système d'indexation angulaire comprend plusieurs languettes aménagées sur l'élément d'entrainement mobile coopérant avec plusieurs rainures aménagées sur l'organe de manoeuvre.
  • il est un bloc robinet ou RDI.
As the case may be, the gas distribution device of the invention may comprise one or more of the following technical characteristics:
  • the actuating member cooperates with the flow selection system via a movable driving element, the movable driving element comprising at least one abutment element projecting from an external surface of said element. mobile training.
  • the operating member comprises at least one housing, said at least one abutment member being housed in said at least one housing for retaining the operating member fixedly secured to said main body.
  • the movable driving member comprising a plurality of abutment members projecting from the outer surface of said movable driving member.
  • the movable drive member comprises a rotatable drive ring carrying the projecting abutment members.
  • the projecting abutment members are angularly distributed over at least a portion of the outer periphery of the rotary drive ring.
  • the number of housings is preferably equal to the number of abutment elements.
  • the number of dwellings is preferably between 2 and 12.
  • the number of abutment elements is preferably between 2 and 12.
  • the actuator comprises a plurality of housings.
  • the operating member comprises a flange carrying said housing.
  • the housings are angularly distributed over at least a portion of the collar.
  • or said housing is bordered by one or wall elements each form a deformation zone and rupture designed to break during disassembly the actuating member of the movable driving element.
  • the operating member is a rotary operating wheel.
  • the flow selection system comprising calibrated orifices.
  • an angular indexing system is arranged on the operating member and the movable driving element.
  • the angular indexing system comprises complementary shapes comprising at least one tongue arranged on the movable driving element cooperating with at least one groove formed on the operating member.
  • the angular indexing system comprises a plurality of tabs arranged on the movable drive member cooperating with a plurality of grooves on the operating member.
  • it is a faucet block or RDI.

Selon un mode de réalisation préféré, l'invention concerne un dispositif de distribution de gaz comprenant :

  • un corps principal traversé par un passage interne de gaz servant à acheminer un gaz et
  • un organe de manoeuvre mobile coopérant, par l'intermédiaire d'un élément d'entrainement mobile, avec un système de sélection de débit agencé sur le passage interne de gaz, l'organe de manoeuvre étant solidarisé audit corps principal et manoeuvrable par un utilisateur pour sélectionner un débit de gaz désiré,
According to a preferred embodiment, the invention relates to a gas distribution device comprising:
  • a main body traversed by an internal gas passage for conveying a gas and
  • a movable actuator cooperating, via a movable drive element, with a flow selection system arranged on the internal gas passage, the operating member being secured to said main body and operable by a user to select a desired gas flow,

et dans lequel l'organe de manoeuvre comprend au moins un logement et l'élément d'entrainement mobile comprend au moins un élément de butée faisant saillie sur une surface externe dudit élément d'entrainement mobile, ledit au moins un élément de butée venant se loger dans ledit au moins un logement pour retenir l'organe de manoeuvre fixé solidairement audit élément d'entrainement mobile,
caractérisé en ce que :

  • l'élément d'entrainement mobile comprend une bague d'entrainement rotative portant le ou les éléments de butée en saillie,
  • l'organe de manoeuvre comprend une collerette portant le ou lesdits logements,
  • et le ou lesdits logements sont bordés par un ou des éléments de paroi formant chacun une zone de déformation et de rupture conçue pour se briser lors d'un désassemblage de l'organe de manoeuvre de l'élément d'entrainement mobile.
and wherein the actuating member comprises at least one housing and the movable driving member comprises at least one abutment member projecting from an outer surface of said movable driving member, said at least one abutment member accommodating in said at least one housing for retaining the operating member fixed integrally to said movable driving element,
characterized in that
  • the movable driving element comprises a rotary drive ring carrying the projecting abutment element or elements,
  • the operating member comprises a flange carrying the housing or said housing,
  • and the at least one housing is bordered by one or more wall elements each forming a zone of deformation and rupture designed to break during disassembly of the actuating member of the movable driving element.

Par ailleurs, l'invention concerne aussi un récipient de gaz, en particulier une bouteille de gaz, équipé d'un dispositif de distribution de gaz selon l'invention, en particulier un bloc robinet ou RDI.Furthermore, the invention also relates to a gas container, in particular a gas cylinder, equipped with a gas distribution device according to the invention, in particular a valve block or RDI.

En outre, l'invention porte aussi sur une utilisation d'un récipient de gaz équipé d'un dispositif de distribution de gaz selon l'invention, pour stocker ou pour distribuer un gaz ou mélange gazeux.In addition, the invention also relates to a use of a gas container equipped with a gas distribution device according to the invention for storing or dispensing a gas or gas mixture.

L'invention va maintenant être mieux comprise grâce à la description détaillée suivante, faite à titre illustratif mais non limitatif, en référence aux figures annexées parmi lesquelles :

  • la Figure 1 est une vue de 3/4 d'un mode de réalisation d'un dispositif de distribution de gaz de type RDI selon la présente invention, avec volant fixé sur le corps principal dudit RDI,
  • la Figure 2 est une vue de côté du RDI de la Figure 1, avec volant de manoeuvre dissocié du corps principal dudit RDI,
  • la Figure 3 est une vue grossie de côté du volant de manoeuvre du RDI de la Figure 1,
  • la Figure 4 est une représentation schématique des parties internes situées sous le volant de manoeuvre du RDI de la Figure 1,
  • les Figures 5 et 6 sont des vues de dessous et de dessus, respectivement, de la bague d'entrainement et du disque à orifices calibrés du RDI de la Figure 1,
  • la Figure 7 est une vue de côté du RDI de la Figure 1 montrant le positionnement de la bague d'entrainement et du disque à orifices calibrés des Figures 5 et 6, et
  • la Figure 8 est vue en coupe du RDI de la Figure 1 dans la région du raccord de sortie de gaz.
The invention will now be better understood thanks to the following detailed description, given by way of illustration but without limitation, with reference to the appended figures among which:
  • the Figure 1 is a 3/4 view of an embodiment of an RDI type gas distribution device according to the present invention, with shuttlecock attached to the main body of said RDI,
  • the Figure 2 is a side view of the RDI of the Figure 1 , with maneuvering wheel dissociated from the main body of said RDI,
  • the Figure 3 is a magnified side view of the RDI steering wheel from the Figure 1 ,
  • the Figure 4 is a schematic representation of the internal parts located under the steering wheel of the RDI of the Figure 1 ,
  • the Figures 5 and 6 are bottom and top views, respectively, of the drive ring and calibrated orifice disc of the RDI of the Figure 1 ,
  • the Figure 7 is a side view of the RDI of the Figure 1 showing the positioning of the drive ring and the calibrated orifice disc of the Figures 5 and 6 , and
  • the Figure 8 is sectional view of the RDI of the Figure 1 in the region of the gas outlet fitting.

La Figure 1 est une vue de 3/4 d'un mode de réalisation d'un dispositif de distribution de gaz selon la présente invention, qui est ici de type robinet à détendeur intégré ou RDI, où l'on voit le volant de manoeuvre 2 fixé solidairement au corps principal 1 dudit RDI, grâce au système de couplage de l'invention, comme expliqué ci-dessous.The Figure 1 is a view of 3/4 of an embodiment of a gas distribution device according to the present invention, which is here of integrated pressure reducer valve type or RDI, where we see the steering wheel 2 fixed jointly to the main body 1 of said RDI, thanks to the coupling system of the invention, as explained below.

Comme on le voit, le RDI comprend un corps principal 1, par exemple en laiton ou en acier inoxydable, traversé par un passage interne de gaz (non visible) servant à acheminer un gaz entre un orifice d'entrée 12 de gaz porté par un embout de fixation 14 et un orifice de sortie 13 de gaz porté par un embout ou raccord de sortie 15 auquel peut être connecté un conduit flexible de gaz par exemple.As can be seen, the RDI comprises a main body 1, for example of brass or stainless steel, crossed by an internal gas passage (not visible) for conveying a gas between a gas inlet port 12 carried by a fixing end 14 and a gas outlet port 13 carried by a nozzle or outlet fitting 15 to which may be connected a flexible gas conduit for example.

S'agissant d'un RDI, c'est-à-dire d'un robinet à détendeur intégré, il incorpore un système de détente de gaz qui comprend classiquement un clapet de détente et un siège de clapet. Ce système de détente de gaz permet de réduire la pression du gaz à une valeur désirée qui peut être, selon le mode de réalisation choisi, réglable par l'utilisateur ou alors fixe, c'est-à-dire réglée en usine et non modifiable par l'utilisateur, par exemple une pression de détente de l'ordre de 3 à 5 bar absolus. Dans le cas présent, la pression de détente n'est pas modifiable et réglée de l'ordre de 4 bar abs. Le gaz détendu est acheminé ensuite jusqu'au raccord de sortie 15 par lequel il est délivré à l'utilisateur à la pression et au débit désirés.Being an RDI, that is to say an integrated pressure reducer valve, it incorporates a gas expansion system which conventionally comprises an expansion valve and a valve seat. This gas expansion system makes it possible to reduce the pressure of the gas to a desired value which can be, according to the chosen embodiment, adjustable by the user or else fixed, that is to say set at the factory and not modifiable. by the user, for example a pressure of relaxation of the order of 3 to 5 bar absolute. In this case, the expansion pressure is not modifiable and adjusted to about 4 bar abs. The expanded gas is then conveyed to the outlet fitting 15 where it is delivered to the user at the desired pressure and flow rate.

L'embout de fixation 14 (cf. Fig. 1, 2 et 7) est fileté et de forme cylindrique ou tronconique. Il sert à fixer le RDI à un récipient de gaz, typiquement au col d'une bouteille de gaz, contenant le gaz à haute pression, c'est-à-dire à une pression pouvant atteindre 200 à 300 bar abs, voire plus.The attachment end 14 (cf. Fig. 1 , 2 and 7 ) is threaded and cylindrical or frustoconical. It serves to fix the RDI to a gas container, typically the neck of a gas cylinder, containing the gas at high pressure, that is to say at a pressure of up to 200 to 300 bar abs, or more.

Un organe de manoeuvre, à savoir ici un volant rotatif 2, par exemple en polymère, est agencé mobile autour du raccord de sortie 15. Le volant 2 et le raccord de sortie 15 sont coaxiaux.An operating member, namely here a rotary wheel 2, for example polymer, is arranged mobile around the outlet fitting 15. The steering wheel 2 and the outlet fitting 15 are coaxial.

Le volant rotatif 2 porte ici une couronne 16 portant des graduations 17 correspondant à des débits de gaz, ainsi que des moyens de préhension, à savoir des structures en creux et en relief 18 permettant à un utilisateur de saisir le volant 2 entre ses doigts pour le manoeuvrer en rotation et ainsi sélectionner le débit de gaz désiré devant être délivré par le raccord de sortie 15. Le corps du volant 2 a une forme générale, vue de face (cf. Fig. 1), de périphérie circulaire.The rotary flywheel 2 here carries a ring 16 carrying graduations 17 corresponding to gas flow rates, as well as gripping means, namely hollow and raised structures 18 allowing a user to grasp the steering wheel 2 between his fingers for rotate it and thus select the desired gas flow to be delivered by the outlet fitting 15. The body of the steering wheel 2 has a general shape, seen from the front (cf. Fig. 1 ), circular periphery.

Le corps principal 1 du RDI comprend en outre d'autres organes classiques, notamment un manomètre 19 indiquant la pression du gaz après détente par le système de détente intégré au RDI, une prise de remplissage etc....The main body 1 of the RDI further comprises other conventional members, including a pressure gauge 19 indicating the pressure of the gas after expansion by the expansion system integrated in the RDI, a filling plug etc ....

Par ailleurs, le volant rotatif 2 coopère en fait avec un système de sélection de débit 9, 10 interne, comme illustré en Figures 5 à 7, qui est agencé sur le passage interne de gaz et qui permet d'ajuster le débit de gaz à la valeur souhaitée. Ce système de sélection de débit 9, 10 comprend préférentiellement un disque 9 traversé par des orifices calibrés 10 ; toutefois, il pourrait prendre d'autres formes, notamment celle d'une cloche ou autre.Moreover, the rotary wheel 2 actually cooperates with an internal flow selection system 9, 10, as illustrated in FIG. Figures 5 to 7 which is arranged on the internal gas passage and which adjusts the gas flow rate to the desired value. This flow selection system 9, 10 preferably comprises a disc 9 traversed by calibrated orifices 10; however, it could take other forms, such as a bell or other.

Le disque 9 est fixé à la bague d'entrainement 3 de sorte qu'une rotation de la bague 3 entraîne une rotation du disque 9, ce qui permet alors de déplacer les orifices calibrés 10 et de les mettre au regard du passage interne 13 de gaz, et ainsi de sélectionner le débit de gaz désiré, étant donné que le calibre de chaque orifice calibré 10 correspond à une valeur de débit donnée.The disc 9 is fixed to the drive ring 3 so that a rotation of the ring 3 causes a rotation of the disc 9, which then makes it possible to move the calibrated orifices 10 and to put them opposite the internal passage 13 of gas, and so select the desired gas flow rate, since the caliber of each calibrated orifice 10 corresponds to a given flow rate value.

L'ensemble disque 9/ bague d'entrainement 3 est maintenu en position dans le corps 1 du RDI par une pièce de maintien 11, encore appelée entretoise, comme illustré sur les Figures 4 et 8. Cette pièce de maintien 11 comprend une expansion axiale 12, visible sur les Figures 5 et 8, qui traverse le disque 9 à orifices calibrés 10.The disk assembly 9 / drive ring 3 is held in position in the body 1 of the RDI by a holding piece 11, also called a spacer, as illustrated in FIGS. Figures 4 and 8 . This holding piece 11 comprises an axial expansion 12, visible on the Figures 5 and 8 which passes through the disc 9 with calibrated orifices 10.

La pièce de maintien 1 est traversée par au moins un conduit de gaz 14, visible sur la Figure 8, mettant en communication fluidique le passage interne 13 du corps 1 et le raccord de sortie 15.The holding part 1 is traversed by at least one gas conduit 14, visible on the Figure 8 , placing in fluid communication the internal passage 13 of the body 1 and the outlet fitting 15.

Plus précisément, lorsqu'il est manoeuvré par un utilisateur, le volant rotatif 2 entraîne en rotation le disque 9 à orifices calibrés 10 du système de sélection de débit 9, 10, via l'élément d'entrainement 3 mobile en rotation, à savoir ici une bague d'entrainement rotative. La bague d'entrainement 3 est solidaire du disque 9 à orifices calibrés 10.More specifically, when it is operated by a user, the rotary wheel 2 rotates the disk 9 with calibrated orifices 10 of the flow selection system 9, 10, via the driving element 3 which is mobile in rotation, namely here a rotating drive ring. The drive ring 3 is integral with the disc 9 with calibrated orifices 10.

Selon la présente invention, l'élément d'entrainement mobile 3 comprend des éléments de butée 4 faisant ici saillie sur la surface externe 5 de l'élément d'entrainement mobile 3, en particulier sur la surface périphérique externe de la bague d'entrainement rotative, comme illustré en Figure 2.According to the present invention, the movable driving element 3 comprises abutment elements 4 protruding here on the outer surface 5 of the movable driving element 3, in particular on the outer peripheral surface of the drive ring. rotating, as illustrated in Figure 2 .

Par ailleurs, l'organe de manoeuvre ou volant 2 comprend des logements 6, dans lesquels viennent se loger dans les éléments de butée 4 en saillie portés par la surface périphérique externe 5 de la bague d'entrainement rotative 3 de manière à retenir l'organe de manoeuvre 2 fixé solidairement audit élément d'entrainement mobile 3, c'est-à-dire ici une bague d'entrainement, donc aussi audit corps principal 1 puisque l'ensemble disque 9/ bague d'entrainement 3 est maintenu en position dans le corps 1 du RDI par une pièce de maintien 11, comme expliqué ci-avant.Furthermore, the operating member or flywheel 2 comprises housings 6, in which are housed in the abutment members 4 projecting carried by the outer peripheral surface 5 of the rotary drive ring 3 so as to retain the actuating member 2 fixedly secured to said movable driving element 3, that is to say here a drive ring, thus also to said main body 1 since the disc assembly 9 / driving ring 3 is maintained in position in the body 1 of the RDI by a holding member 11, as explained above.

Il est à souligner toutefois qu'une configuration inverse est possible et totalement équivalente, à savoir que les logements 6 peuvent être agencés dans la surface périphérique externe 5 de la bague d'entrainement rotative 3, et les éléments de butée 4 peuvent être agencés sur la surface interne de l'organe de manoeuvre ou volant 2. Une telle configuration inverse constitue un second mode de réalisation d'un dispositif selon l'invention, en particulier d'un robinet ou RDI.It should be emphasized, however, that a reverse configuration is possible and completely equivalent, namely that the housings 6 can be arranged in the outer peripheral surface 5 of the rotary drive ring 3, and the stop elements 4 can be arranged on the inner surface of the operating member or flywheel 2. Such a reverse configuration is a second embodiment of a device according to the invention, in particular a valve or RDI.

Plus généralement, l'insertion des éléments de butée 4 dans les logements 6 se fait préférentiellement par emboitement, c'est-à-dire par « clipsage ». Lors de l'assemblage, l'un ou les éléments se déforment pour que les éléments de butée 4 formant des parties mâles puissent s'insérer dans les logements 6 formant des cavités ou parties femelles.More generally, the insertion of the abutment elements 4 into the housings 6 is preferentially by interlocking, that is to say by "clipping". During assembly, one or the elements are deformed so that the abutment elements 4 forming male parts can be inserted into the recesses 6 forming cavities or female parts.

Préférentiellement, l'organe de manoeuvre ou volant 2 comprend une collerette 7 portant lesdits logements 6, laquelle est aménagée sur sa face intérieure, c'est-à-dire la face du volant 2 dirigée vers le corps 1 du RDI. Les logements 6 sont angulairement répartis sur tout ou partie de la collerette 7, comme visible sur les Figures 1, 3 et 4. La collerette 7 est coaxiale du raccord 15 de sortie de gaz, lors le volant 2 est fixé au RDI.Preferably, the actuator or flywheel 2 comprises a flange 7 carrying said housing 6, which is arranged on its inner face, that is to say the face of the wheel 2 directed towards the body 1 of the RDI. The housings 6 are angularly distributed over all or part of the collar 7, as visible on the Figures 1 , 3 and 4 . The flange 7 is coaxial with the gas outlet connector 15 when the steering wheel 2 is attached to the RDI.

En outre, comme illustré en Figures 3 et 4, la forme des éléments de butée 4 est choisie de sorte que :

  • le mouvement d'assemblage soit facilité par ajout d'une surface en pente 20 ou biseautée sur les éléments de butée 4, ce qui permet d'éviter l'utilisation d'outil puisqu'il suffit de pousser le volant de manoeuvre 2 vers la bague d'entrainement 3 pour que les éléments de butée 4 se logent dans les cavités ou logements 6 du volant 2, et
  • un désassemblage soit empêché par aménagement d'un épaulement 21 venant en butée contre un élément de paroi 8 du volant 2, pour retenir les éléments de butée 4 logés dans les logements 6. Les éléments de butée 4 sont localisés en bordure des logements 6.
In addition, as illustrated in Figures 3 and 4 , the shape of the abutment elements 4 is chosen so that:
  • the assembly movement is facilitated by adding a sloping or tapered surface on the abutment elements 4, which makes it possible to avoid the use of a tool since it suffices to push the operating wheel 2 towards the drive ring 3 so that the stop elements 4 are housed in the cavities or housings 6 of the steering wheel 2, and
  • disassembly is prevented by providing a shoulder 21 abutting against a wall element 8 of the wheel 2, to retain the abutment members 4 housed in the housing 6. The abutment elements 4 are located at the edge of the housing 6.

Ainsi, une fois les éléments de butée 4 positionnés dans les logements 6, le mouvement de démontage est difficile, voire impossible, ce qui empêche un démontage ou une désolidarisation intempestive ou non-autorisée du volant 2 du corps du RDI 1. En effet, tout démontage du volant 2 entraine une destruction des éléments de paroi 8. Ces éléments de paroi 8 forment chacun une zone de déformation et de rupture qui est conçue et dimensionnée pour se briser lors de toute tentative de désassemblage du volant 2 de la bague d'entrainement 3.Thus, once the abutment elements 4 positioned in the housing 6, the disassembly movement is difficult, if not impossible, which prevents unintentional or unauthorized disassembly or disassociation of the steering wheel 2 of the body of the RDI 1. Indeed, any disassembly of the flywheel 2 causes destruction of the wall elements 8. These wall elements 8 each form a zone of deformation and rupture which is designed and dimensioned to break during any attempt to disassemble the flywheel 2 of the drive ring 3.

Préférentiellement, l'assemblage du volant de manoeuvre 2 et de la bague d'entrainement 3 n'est possible que dans une seule et unique position angulaire. Pour ce faire, on peut prévoir un système d'indexation angulaire 23, 24 comprenant par exemple des formes complémentaires dans la zone d'assemblage des deux pièces, à savoir une languette 23 aménagée sur la bague d'entrainement 3 coopérant avec une rainure 24 présente sur le volant de manoeuvre 2, comme visible en Figure 4. La languette 23 ne peut se loger que dans la rainure 24, imposant ainsi un positionnement angulaire unique. Il est aussi possible d'utiliser plusieurs éléments de type languettes 23 et rainures 24 pour effectuer ce positionnement, répartis sur la zone de contact entre le volant de manoeuvre et la bague d'entrainement. L'utilisation de plusieurs languettes 23 et rainures 24 permet de mieux répartir les contraintes à transmettre lors de la manipulation du volant de manoeuvre 2 par l'utilisateur.Preferably, the assembly of the operating wheel 2 and the drive ring 3 is only possible in a single angular position. For this purpose, it is possible to provide an angular indexing system 23, 24 comprising, for example, complementary shapes in the assembly zone of the two parts, namely a tongue 23 fitted on the drive ring 3 cooperating with a groove 24. present on the steering wheel 2, as visible in Figure 4 . The tongue 23 can be housed only in the groove 24, thus imposing a single angular positioning. It is also possible to use several tongue-like elements 23 and grooves 24 to perform this positioning, distributed over the contact zone between the handwheel and the drive ring. The use of several tongues 23 and grooves 24 makes it possible to better distribute the stresses to be transmitted when the handwheel 2 is being handled by the user.

La description précédente a été faite pour un dispositif de distribution de gaz de type RDI; toutefois, elle s'applique à un robinet simple, c'est-à-dire à un robinet sans détendeur interne, voire à d'autres types de dispositifs de distribution de gaz.The foregoing description has been made for an RDI type gas distribution device; however, it applies to a single valve, that is to say to a valve without internal expansion valve, or to other types of gas distribution devices.

Claims (15)

Dispositif de distribution de gaz comprenant : - un corps principal (1) traversé par un passage interne de gaz (13) servant à acheminer un gaz et - un organe de manoeuvre (2) mobile coopérant avec un système de sélection de débit (9) agencé sur le passage interne de gaz, l'organe de manoeuvre (2) étant solidarisé audit corps principal (1) et manoeuvrable par un utilisateur pour sélectionner un débit de gaz désiré, caractérisé en ce que : - l'organe de manoeuvre (2) coopère avec le système de sélection de débit (9) par l'intermédiaire d'un élément d'entrainement mobile (3), - l'organe de manoeuvre (2) comprend au moins un logement (6) et l'élément d'entrainement mobile (3) comprend au moins un élément de butée (4) faisant saillie sur une surface (5) dudit élément d'entrainement mobile (3), ou l'élément d'entrainement mobile (3) comprend au moins un logement (6) et l'organe de manoeuvre (2) comprend comprenant au moins un élément de butée (4) faisant saillie sur une surface (5) dudit organe de manoeuvre (2), et - ledit au moins un élément de butée (4) vient se loger dans ledit au moins un logement (6) pour retenir l'organe de manoeuvre (2) fixé solidairement audit élément d'entrainement mobile (3). Gas distribution device comprising: a main body (1) traversed by an internal gas passage (13) for conveying a gas and - A movable actuating member (2) cooperating with a flow selection system (9) arranged on the internal gas passage, the operating member (2) being secured to said main body (1) and operable by a user for select a desired gas flow, characterized in that : the operating member (2) cooperates with the flow selection system (9) via a movable driving element (3), the actuating member (2) comprises at least one housing (6) and the movable driving element (3) comprises at least one abutment element (4) projecting from a surface (5) of said element mobile drive (3), where the movable drive element (3) comprises at least one housing (6) and the actuator (2) comprises at least one abutment element (4) projecting from a surface (5) said actuator (2), and - Said at least one stop element (4) is housed in said at least one housing (6) for retaining the operating member (2) fixedly secured to said movable drive element (3). Dispositif de distribution de gaz selon la revendication 1, caractérisé en ce que : - l'élément d'entrainement mobile (3) comprenant au moins un élément de butée (4) faisant saillie sur une surface externe (5) dudit élément d'entrainement mobile (3), et - l'organe de manoeuvre (2) comprend au moins un logement (6), ledit au moins un élément de butée (4) venant se loger dans ledit au moins un logement (6) pour retenir l'organe de manoeuvre (2) fixé solidairement audit corps principal (1). Gas distribution device according to claim 1, characterized in that : the movable driving element (3) comprising at least one abutment element (4) projecting from an external surface (5) of said movable driving element (3), and the actuating member (2) comprises at least one housing (6), said at least one abutment element (4) being housed in said at least one housing (6) for retaining the operating member (2) fixedly secured to said main body (1). Dispositif de distribution de gaz selon la revendication 1, caractérisé en ce que : - l'élément d'entrainement mobile (3) comprenant plusieurs éléments de butée (4) faisant saillie sur la surface externe (5) dudit élément d'entrainement mobile (3) et/ou - l'organe de manoeuvre (2) comprend plusieurs logements (6). Gas distribution device according to claim 1, characterized in that : the movable driving element (3) comprising a plurality of abutment elements (4) protruding from the outer surface (5) of said movable driving element (3) and / or - The actuating member (2) comprises a plurality of housings (6). Dispositif de distribution de gaz selon l'une des revendications précédentes, caractérisé en ce que l'élément d'entrainement mobile (3) comprend une bague d'entrainement rotative portant les éléments de butée (4) en saillie.Gas distribution device according to one of the preceding claims, characterized in that the movable drive element (3) comprises a rotary drive ring carrying the abutment elements (4) projecting. Dispositif de distribution de gaz selon la revendication 4, caractérisé en ce que les éléments de butée (4) en saillie sont angulairement répartis sur au moins une partie de la périphérie externe de la bague d'entrainement rotative.Gas distribution device according to claim 4, characterized in that the projecting abutment members (4) are angularly distributed over at least a portion of the outer periphery of the rotary drive ring. Dispositif de distribution de gaz selon l'une des revendications 1 à 3, caractérisé en ce que l'organe de manoeuvre (2) comprend une collerette (7) portant lesdits logements (6), de préférence les logements (6) sont angulairement répartis sur au moins une partie de la collerette (7).Gas distribution device according to one of claims 1 to 3, characterized in that the actuating member (2) comprises a flange (7) carrying said housing (6), preferably the housing (6) are angularly distributed on at least a part of the flange (7). Dispositif de distribution de gaz selon l'une des revendications 1 à 3 ou 6, caractérisé en ce que le ou lesdits logements (6) sont bordés par un ou des éléments de paroi (8) forment chacun une zone de déformation et de rupture conçue pour se briser lors d'un désassemblage l'organe de manoeuvre (2) de l'élément d'entrainement mobile (3).Gas distribution device according to one of claims 1 to 3 or 6, characterized in that the or said housing (6) are bordered by one or more wall elements (8) each form a deformation zone and rupture designed to break during disassembly the actuating member (2) of the movable driving element (3). Dispositif de distribution de gaz selon l'une des revendications 1 à 3, 6 ou 7, caractérisé en ce que l'organe de manoeuvre (2) est un volant de manoeuvre rotatif.Gas distribution device according to one of claims 1 to 3, 6 or 7, characterized in that the actuating member (2) is a rotary operating wheel. Dispositif de distribution de gaz selon la revendication 1, caractérisé en ce que le système de sélection de débit (9) comprenant des orifices calibrés (10), de préférence les orifices calibrés (10) sont portés par un disque ou une cloche.Gas distribution device according to claim 1, characterized in that the flow selection system (9) comprising calibrated orifices (10), preferably the calibrated orifices (10) are carried by a disc or a bell. Dispositif de distribution de gaz selon la revendication 9, caractérisé en ce que le système de sélection de débit (9) comprenant des orifices calibrés (10) portés par un disque ou une cloche.Gas distribution device according to claim 9, characterized in that the flow selection system (9) comprises calibrated orifices (10) carried by a disk or a bell. Dispositif de distribution de gaz selon l'une des revendications précédentes, caractérisé en ce qu'un système d'indexation angulaire (23, 24) est aménagé sur l'organe de manoeuvre (2) et l'élément d'entrainement mobile (3).Gas distribution device according to one of the preceding claims, characterized in that an angular indexing system (23, 24) is arranged on the operating member (2) and the movable driving element (3). ). Dispositif de distribution de gaz selon l'une des revendications précédentes, caractérisé en ce le système d'indexation angulaire (23, 24) comprend des formes complémentaires comprenant au moins une languette (23) aménagée sur l'élément d'entrainement mobile (3) coopérant avec au moins une rainure (24) aménagée sur l'organe de manoeuvre (2).Gas distribution device according to one of the preceding claims, characterized in that the angular indexing system (23, 24) comprises complementary shapes comprising at least one tongue (23) arranged on the movable driving element (3). ) cooperating with at least one groove (24) provided on the actuating member (2). Dispositif de distribution de gaz selon l'une des revendications précédentes, caractérisé en ce qu'il est un bloc robinet ou RDI.Gas distribution device according to one of the preceding claims, characterized in that it is a valve block or RDI. Récipient de gaz, en particulier une bouteille de gaz, équipé d'un dispositif de distribution de gaz selon l'une des revendications précédentes, en particulier un bloc robinet ou RDI.Gas container, in particular a gas cylinder, equipped with a gas distribution device according to one of the preceding claims, in particular a valve block or RDI. Utilisation d'un récipient de gaz équipé d'un dispositif de distribution de gaz selon l'une des revendications 1 à 13, pour stocker ou pour distribuer un gaz ou mélange gazeux.Use of a gas container equipped with a gas distribution device according to one of claims 1 to 13 for storing or dispensing a gas or gas mixture.
EP18160304.4A 2017-03-31 2018-03-06 Gas delivery device with improved coupling system of the operating member Active EP3382259B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1752738A FR3064717A1 (en) 2017-03-31 2017-03-31 GAS DISTRIBUTION DEVICE HAVING AN IMPROVED COUPLING SYSTEM FOR THE MANEUVER

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EP3382259A1 true EP3382259A1 (en) 2018-10-03
EP3382259B1 EP3382259B1 (en) 2019-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882507A1 (en) * 2020-03-18 2021-09-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Container for pressurised gas provided with an electronic clamping alert device
FR3133320A1 (en) 2022-03-10 2023-09-15 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Improved Integrated Regulator Gas Container Faucet

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3949966A (en) * 1975-04-30 1976-04-13 Robertshaw Controls Company Variable constant flow selector valve
US5640997A (en) * 1994-08-05 1997-06-24 B & F Medical Products, Inc. Relief valve for gas flow rate regulator
US20080066817A1 (en) * 2006-09-18 2008-03-20 Pergola S.R.L. Device for adjusting and throttling the flow-rate of a fluid, particularly medical oxygen and compressed gases in general
EP2827214A2 (en) * 2013-07-19 2015-01-21 Western Enterprises / Scott Fetzer Company Fluid control assemblies and flow path inserts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949966A (en) * 1975-04-30 1976-04-13 Robertshaw Controls Company Variable constant flow selector valve
US5640997A (en) * 1994-08-05 1997-06-24 B & F Medical Products, Inc. Relief valve for gas flow rate regulator
US20080066817A1 (en) * 2006-09-18 2008-03-20 Pergola S.R.L. Device for adjusting and throttling the flow-rate of a fluid, particularly medical oxygen and compressed gases in general
EP2827214A2 (en) * 2013-07-19 2015-01-21 Western Enterprises / Scott Fetzer Company Fluid control assemblies and flow path inserts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3882507A1 (en) * 2020-03-18 2021-09-22 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Container for pressurised gas provided with an electronic clamping alert device
FR3108382A1 (en) * 2020-03-18 2021-09-24 L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Pressurized gas container equipped with an electronic clamping alert device
FR3133320A1 (en) 2022-03-10 2023-09-15 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Improved Integrated Regulator Gas Container Faucet
EP4257868A1 (en) 2022-03-10 2023-10-11 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Improved valve for gas container with integrated expansion valve

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EP3382259B1 (en) 2019-12-11
FR3064717A1 (en) 2018-10-05

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