EP2279372A2 - Vorrichtung zur ausgabe von unter druck stehendem gas, anordnung mit einer solchen vorrichtung und einer steuervorrichtung dafür sowie mit einer solchen ausgabevorrichtung ausgestatteter behälter - Google Patents

Vorrichtung zur ausgabe von unter druck stehendem gas, anordnung mit einer solchen vorrichtung und einer steuervorrichtung dafür sowie mit einer solchen ausgabevorrichtung ausgestatteter behälter

Info

Publication number
EP2279372A2
EP2279372A2 EP09761889A EP09761889A EP2279372A2 EP 2279372 A2 EP2279372 A2 EP 2279372A2 EP 09761889 A EP09761889 A EP 09761889A EP 09761889 A EP09761889 A EP 09761889A EP 2279372 A2 EP2279372 A2 EP 2279372A2
Authority
EP
European Patent Office
Prior art keywords
pressure
withdrawal
gas
control device
valve
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
EP09761889A
Other languages
English (en)
French (fr)
Other versions
EP2279372B1 (de
Inventor
Alessandro Moretti
Philippe Pisot
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 EP2279372A2 publication Critical patent/EP2279372A2/de
Application granted granted Critical
Publication of EP2279372B1 publication Critical patent/EP2279372B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F17C2205/0311—Closure means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7793—With opening bias [e.g., pressure regulator]
    • Y10T137/7795—Multi-stage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87973—Coupling interlocked with valve, or closure or actuator

Definitions

  • Device for dispensing gas under pressure an assembly comprising such a device and a control device, container provided with such a device
  • the present invention relates to a device for dispensing gas under pressure, an assembly comprising such a dispensing device and a control device and a container provided with such a dispensing device.
  • the invention more particularly relates to a device for dispensing pressurized gas such as a tap, comprising a first end intended to be arranged in the orifice of a tank for storing pressurized gas, and a second end comprising an interface of connection selectively connectable to a filling control device and / or withdrawal of gas from the tank, the dispensing device comprising an internal gas circuit having an upstream end for communicating with the interior of the tank and a downstream end for be connected to said filling control device and / or withdrawal, the internal circuit comprising in series, from upstream to downstream, a pressure regulator and a downstream isolation valve, the portion of the internal circuit located between the pressure regulator and the downstream isolation valve defining a so-called low pressure chamber.
  • gas filling and distribution systems such as valves with built-in expansion valves are provided so that the end user of a pressurized gas cylinder can not be in contact with the gas at high pressure. pressure of the bottle, but on the contrary only with gas at a reduced pressure by a pressure regulator.
  • a rise in pressure can occur between the expander and the isolation valve, especially in the event of leakage of the expander.
  • no regulator can be considered 100% waterproof all the more for gases whose molecules are small (hydrogen or helium type).
  • the low pressure chamber downstream of the expander can be filled with gas at a high pressure.
  • this creates a dangerous situation when the user wants to withdraw gas again and connects to the tank by opening the isolation valve (via for example a quick connection).
  • an abnormally high pressure prevails upstream of the isolation valve, it may cause an extrusion of O-rings sealing between the port of withdrawal and the connection fast of the user system.
  • the safety problems arise especially in the case where the valve has a filling port confused with the withdrawal port.
  • the safety valve may be provided to maintain the exhaust gas released by the safety valve in a sealed volume inside the valve.
  • the exhaust gas is then treated and evacuated by a secure system that connects to the tap.
  • Another solution may be to indicate to the user (via a manometer) that the pressure is abnormally high in the valve just behind the valve which isolates it from the outside.
  • this approach is unreliable because it relies solely on the user for security aspects.
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • connection interface comprises at least one selectively movable security lock between a first rest position in which it conforms the connection interface in a first configuration connectable to said filling control device and / or the conjugate withdrawal and a second active position in which it conforms the connection interface in a second configuration preventing the connection with a filling control device and / or conjugate withdrawal, the safety lock being moved to its active position under the action of the pressure in the chamber low pressure when the pressure in the low pressure chamber is above the determined threshold.
  • embodiments of the invention may include one or more of the following features: the safety latch is biased by default towards its rest position,
  • the safety lock is designed to modify, when it moves from its rest position to its active position, at least one of the following structural characteristics of the connection interface: the shape, the volume, the orientation, one dimension, - the rest and active positions of the safety lock respectively correspond to retracted and protruding positions with respect to the connection interface,
  • the security lock comprises a ball movable in a housing formed in the connection interface and opening onto the outer surface of the latter,
  • the safety lock is subjected to the pressure in the so-called low-pressure chamber directly and / or via an intermediate transmission member such as a mobile piston,
  • the internal circuit comprises an additional isolation valve called upstream valve arranged in series between the pressure regulator and the downstream isolation valve,
  • the internal circuit comprises a safety valve intended to be subjected to pressure in the tank to selectively close or open a passage for the gas from the tank to a discharge zone according to the temperature and / or the pressure of the gas in the tank by ratio to at least a determined threshold, the discharge zone of the safety valve opening into the so-called low-pressure chamber upstream of the downstream isolation valve,
  • the internal circuit comprises a filling duct intended to fill a reservoir and a withdrawal duct intended to extract gas from a reservoir, said filling and withdrawal ducts being merged or distinct and coinciding with a common end intended to be connected; a filling control device and / or withdrawal so that filling and withdrawal are performed via the same access port, -
  • the safety lock is biased by default to its rest position by a return member,
  • the safety valve is situated in a pipe having a downstream end connected upstream of the downstream isolation valve, and an upstream end connected, in mounted position on a reservoir, with the interior of the reservoir,
  • the discharge zone of the safety valve is located between the upstream and downstream valves, - the connection interface comprises male and / or female coupling means (such as pins, lugs, grooves, quick connection systems. ..) intended to cooperate selectively in engagement with female and / or male coupling means of a filling control device and / or withdrawal.
  • the invention may also relate to any alternative device or method comprising any combination of the above or below features.
  • FIG. 1 represents a schematic and partial view illustrating a first example of structure and operation of a pressurized gas distributor device according to the invention
  • FIG. 2 represents a schematic and partial view illustrating a second example of structure and operation of a pressurized gas distributor device according to the invention
  • FIGS. 3 and 4 represent sectional views of a detail of FIG. a possible embodiment of a pressurized gas distributor device according to the invention, illustrating a safety lock respectively in the rest position and in the active position
  • FIG. 5 shows a schematic and partial view illustrating a third example of structure and operation of a pressurized gas distributor device according to the invention.
  • the device 200 dispensing pressurized gas (such as a tap) shown schematically in FIG. 1 comprises a body having a first end housed in the orifice of a tank 30 for storing gas under pressure.
  • the body defines an internal gas circuit having an end connected to the interior of the tank 30 and a downstream end intended to be connected to a filling control device 300 and / or the withdrawal of a user system.
  • a second end device 200 distributor has a connection interface 31 selectively connectable to the filling control device 300 and / or the withdrawal of gas from the tank 30 (for example via a quick connection system).
  • connection interface 31 comprises male and / or female coupling means (such as pins and / or pins and / or grooves and / or clip and / or screwing system ...) intended to selectively cooperate. in hooking with female and / or male coupling means of the filling control device 300 and / or the withdrawal.
  • male and / or female coupling means such as pins and / or pins and / or grooves and / or clip and / or screwing system
  • the internal circuit 20 comprises, upstream to downstream (from the bottle to the end connectable to a user) a pressure regulator 50 and a valve 160 downstream isolation (valve V1) arranged in series.
  • the internal circuit 20 is isolated from the outside via the downstream isolation valve 160 which is open (automatically or by a subsequent specific action) when a control device 300 comes to connect.
  • the portion of the device 200 distributor located between the pressure regulator 50 and the valve 160 downstream insulation defines a so-called low pressure chamber 3. Indeed, except anomaly or leakage, the pressure downstream of the expander 50 must be relatively low.
  • the dispenser device 200 comprises at least one safety lock 7 designed to prevent the connection of a control device 300 to the dispenser device 200 when the pressure in the low-pressure chamber 3 is abnormally high. (above a certain threshold Ps for example).
  • the latch 7 is selectively movable between a first rest position in which it conforms the connection interface 31 in a first configuration connectable to said control device 300 and a second active position in which it conforms the connection interface 31 in a second configuration preventing connection with a controller 300. In this way, in the event of a dangerous situation, the user is unable to make a connection between the control device 300 and the distributor device 200.
  • the safety latch 7 is biased by default towards its rest position and is moved towards its active position under the action of the pressure P in the low pressure chamber 3 when the pressure P in the low pressure chamber 3 is higher. at determined threshold Ps.
  • the security lock 7 is shaped to modify, when it passes from its rest position to its active position, at least one of the following structural characteristics of the connection interface 31: the shape, the volume, orientation, a dimension. For example, and as symbolized in the figure
  • the rest and active positions of the safety latch 7 may respectively correspond to retracted and protruding positions (projection shown in dotted lines) relative to the interface 31 connection.
  • the latch 7 protrudes, it prevents the connection with a control device 300.
  • the latch 7 is for example connected to the low pressure chamber via a conduit 77 formed in the device 200.
  • the safety latch 7 is biased by default to its rest position by a return member such as a spring .
  • the latch 7 is not constrained by a return member towards the rest position, but it is erased towards the rest position when connected to a control device 300 (by mechanical contact for example) .
  • FIG. 2 differs from that of FIG. 1 only in that the distributor device 200 comprises, in the internal circuit 20, an additional isolation valve 60 called an upstream valve 60 placed in series between the pressure regulator 50 and the downstream isolation valve 160 (flapper
  • the latch 7 can be fluidly connected to the low-pressure chamber 3 located between the two valves (V1, V2) and possibly between the upstream valve 160 and the expander 50. That is to say that the 7 can be sensitive to the pressure between the two valves 160, 60 (V1, V2) and possibly also to the pressure between the upstream valve 160 and the expander 50.
  • FIGS 3 and 4 illustrate an exemplary embodiment of the invention.
  • the body 4 of the dispenser device 200 comprises one end forming a connection interface 31.
  • the connection interface 31 is for example designed to be housed partially in a connection system of a control device 300.
  • the connection interface 31 has for example pins or lugs 131 intended to be housed in the conjugate grooves of the control device 300 to form a bayonet-type fastening system for example.
  • the lock comprises a ball 7 housed in a groove which opens onto the outer (for example lateral) surface of the connection interface 31.
  • An upper end of the groove may be delimited by a flange 9 attached to and in the body 4 of the device 200 distributor.
  • the flange 9 may comprise an orifice 36 forming a guide system towards the inside of the body 4 of the dispenser device 200.
  • the downstream valve 160 is located in the body 4 and accessible via this orifice 36 for a valve opening system 301 projecting from the control device 300.
  • the filling orifice and the withdrawal orifice of the dispensing device 200 may coincide in this concave receiving zone 36 of the connection interface 31, 9.
  • the ball 7 is movable between a retracted position in the body 4 and the interface 31 of connection and an active position protruding from the outer surface of the body of the interface 31 and the body 4.
  • the groove is of course shaped to prevent the complete outlet of the ball 7.
  • the ball 7 is subjected to the pressure in the low pressure chamber 3 via, for example, a piston 1 sealingly sliding (seals 2) in a channel 77.
  • An end of the piston 1 is subject at the pressure in the chamber 3 low pressure.
  • Another end of the piston 1 comes into contact with the ball 7, for example via a part 6 forming an inclined plane.
  • the piston 1 is preferably biased by a spring 5 (or equivalent) in a direction opposite to the force exerted by the gas of the low pressure chamber 3 (in the case of pressure P less than a threshold Ps, the spring 5 maintains the piston 1 in a position that does not constrain the ball 7 to its projecting position). That is to say that, by default, the ball 7 can freely move in its transverse groove (Figure 3).
  • the projecting ball 7 forms a protuberance or abutment modifying the diameter (or other) of the connection interface 31 which prevents a complementary shape control device 300 from being connected to it, even if it exerts a relatively strong constraint. .
  • This projecting ball 7 also forms a visual indication of anomaly for a user.
  • FIG. 5 illustrates another example of a device 200 for dispensing pressurized gas according to the invention.
  • the distributor 200 of FIG. 5 further comprises a filter 120 and a check valve 220 arranged in series upstream of the pressure regulator 50.
  • the internal circuit comprises a conduit filling device 240 provided with a non-return valve 140.
  • the filling duct 240 may be mounted in parallel with the withdrawal duct which comprises the expander 50.
  • the upstream end (reservoir side 30) of the filling duct 240 may join the withdrawal duct (comprising the expander 50), for example example upstream of the filter 120.
  • the downstream end (connection interface side 31) of the filling duct 240 can join the withdrawal duct (comprising the expander 50), for example between the two upstream valves 60 and downstream 160
  • the dispensing device 200 may comprise a valve 55 intended to be subjected to the pressure in the tank 30 to selectively close or open a passage for the gas from the tank to a discharge zone according to the temperature and / or the pressure of the gas in the tank with respect to at least one determined threshold.
  • the discharge zone of the safety valve 55 preferably opens into the low pressure chamber 3, upstream of the downstream isolation valve 160.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP09761889.6A 2008-05-16 2009-05-07 Vorrichtung zur ausgabe von unter druck stehendem gas, anordnung mit einer solchen vorrichtung und einer steuervorrichtung dafür sowie mit einer solchen ausgabevorrichtung ausgestatteter behälter Not-in-force EP2279372B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0853163A FR2931223B1 (fr) 2008-05-16 2008-05-16 Dispositif distributeur de gaz sous pression, ensemble comprenant un tel dispositif et dispositif de commande, recipient pourvu d'un tel dispositif distributeur
PCT/FR2009/050845 WO2009150338A2 (fr) 2008-05-16 2009-05-07 Disupositif distributeur de gaz sous pression, ensemble comprenant un tel disupositif et disupositif de commande, récipient pourvu d'un tel disupositif distributeur

Publications (2)

Publication Number Publication Date
EP2279372A2 true EP2279372A2 (de) 2011-02-02
EP2279372B1 EP2279372B1 (de) 2017-10-18

Family

ID=39739969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09761889.6A Not-in-force EP2279372B1 (de) 2008-05-16 2009-05-07 Vorrichtung zur ausgabe von unter druck stehendem gas, anordnung mit einer solchen vorrichtung und einer steuervorrichtung dafür sowie mit einer solchen ausgabevorrichtung ausgestatteter behälter

Country Status (6)

Country Link
US (1) US8869845B2 (de)
EP (1) EP2279372B1 (de)
CN (1) CN102027284B (de)
CA (1) CA2724390C (de)
FR (1) FR2931223B1 (de)
WO (1) WO2009150338A2 (de)

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FR3042255B1 (fr) * 2015-10-07 2018-03-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif de fourniture de fluide sous pression
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Publication number Publication date
EP2279372B1 (de) 2017-10-18
FR2931223B1 (fr) 2010-08-20
CN102027284B (zh) 2012-11-21
WO2009150338A2 (fr) 2009-12-17
FR2931223A1 (fr) 2009-11-20
US20110155266A1 (en) 2011-06-30
WO2009150338A3 (fr) 2010-03-04
CA2724390C (fr) 2015-11-24
CA2724390A1 (fr) 2009-12-17
US8869845B2 (en) 2014-10-28
CN102027284A (zh) 2011-04-20

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