Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. 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
  • 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
  • F17C2205/0323—Valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
  • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
  • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
  • F17C2205/0323—Valves
  • F17C2205/0332—Safety valves or pressure relief valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
  • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
  • F17C2221/00—Handled fluid, in particular type of fluid
  • F17C2221/01—Pure fluids
  • F17C2221/012—Hydrogen
• • 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
  • F17C2270/01—Applications for fluid transport or storage
  • F17C2270/0165—Applications for fluid transport or storage on the road
  • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
• • 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
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/30—Hydrogen technology
  • Y02E60/32—Hydrogen storage
• • 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
  • Y10T137/1624—Destructible or deformable element controlled
  • Y10T137/1797—Heat destructible or fusible
  • Y10T137/1812—In fluid flow path
• • 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
  • Y10T137/7737—Thermal responsive
• • 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]
  • Y10T137/7794—With relief valve
• • 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
  • Y10T137/87265—Dividing into parallel flow paths with recombining
  • Y10T137/8733—Fluid pressure regulator in at least one branch

Definitions

• the present invention relates to a device for filling and dispensing gas, a container and a user circuit provided with such a device.
• the invention more particularly relates to a device for filling and dispensing gas
• a device for filling and dispensing gas comprising a body intended to be arranged in the orifice of a gas storage tank under pressure, a gas withdrawal circuit extending between a first end. upstream end intended to be connected to the inside of the tank and a second downstream end intended to be connected to a user of the gas, the extraction circuit comprising a first isolation valve, the device further comprising a safety valve intended to be subjected to the 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 relative to at least a determined threshold.
• An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
• the device for filling and dispensing gas according to the invention is essentially characterized in that the discharge zone of the safety valve is located upstream of the first isolation valve.
• embodiments of the invention may include one or more of the following features:
• the withdrawal circuit comprises a pressure regulator, a low pressure chamber and the first isolation valve arranged in series in this order from upstream to downstream, the discharge zone of the safety valve being located downstream of the pressure regulator.
• the safety valve is located in a pipe having a downstream end connected upstream of the first isolation valve, and an upstream end connected, in position mounted on a reservoir, with the inside of the tank, the withdrawal circuit of gas comprises a second isolation valve,
• the second isolation valve is arranged between the pressure regulator and the first isolation valve
• the discharge zone of the safety valve is situated between the first and second isolation valves;
• the safety valve comprises a fuse element cooperating in abutment with a selectively movable member between a closed position of the passage towards the zone; discharge device when the fuse element is not activated and a position opening the passage to the discharge zone when the fuse element is activated,
• the movable member of the safety valve comprises a piston movable in translation in the body of the device and a seal system (s) adapted (s) to cooperate with a seat formed in said body,
• the passage for the gas towards a discharge zone comprises a groove, the positions of closing and opening of the passage towards the discharge zone being defined by the positions of the seal system (s) relative to the groove,
• the movable member of the safety valve comprises a piston of the differential type of which only a fraction of its useful surface is subjected to the pressure in the reservoir, in order to limit the force transmitted by the piston to the fuse element at a determined value.
• the invention also provides a pressurized gas container having, disposed in its orifice, a device for filling and dispensing gas in accordance with any of the above characteristics or below.
• the Applicant also proposes an assembly comprising a circuit for using a pressurized gas and a pressurized gas container according to any one of the above characteristics or below, the container being selectively connectable to the use circuit via the gas filling and distribution device, the circuit comprising a mechanism forming a high pressure safety valve adapted to evacuate the gas under exhaust pressure to the atmosphere or in a specific secure area.
• the use circuit comprises a member (such as an axis) having a first selectively opening position of the first valve (second valve closed) and a second opening position of the first and second valve .
• the invention may also relate to any alternative device or method comprising any combination of the process and / or device characteristics above or below.
• FIG. 1 represents a perspective and schematic view illustrating a possible embodiment of a device for filling and dispensing gas according to the invention
• FIGS. 2 to 4 show schematically the structure and the operation of three possible and non-limiting embodiments of the device for filling and dispensing gas according to the invention
• FIG. 5 represents a longitudinal sectional view of the device for filling and dispensing gas of FIG. 1 along a first plane of section;
• FIG. 6 represents a longitudinal sectional view of the gas filling and distribution device of FIG. 1 in position mounted in a reservoir and according to a second section plane (represented by line A-A in FIG. 5),
• FIG. 7 represents a cross-sectional view of the gas filling and distribution device of FIGS. 1 and 5 according to a first section plane (represented by the line B-B in FIG. 5),
• FIG. 8 represents a cross-sectional view of the gas filling and distribution device of FIGS. 1 and 5 along a second section plane (represented by the line C-C in FIG. 5),
• FIG. 9 represents a view in longitudinal and partial section of the device for filling and dispensing gases of FIGS. 1, 2 and 5 to 9 in position connected to a user organ.
• the invention will now be described with reference to FIGS. 1 to 9 which illustrate examples of non-limiting application.
• the invention can also be applied to any other type of device or tap.
• the invention may especially apply to the devices described in WO2007 / 048954 A1 or WO2007 / 048957.
• the device for filling and dispensing gas comprises an oblong body 1 whose lower end is intended to be housed preferably in part in a tank.
• the device incorporates in particular a gas expansion portion (pressure regulator 50) and a connection zone 101 (such as a thread or the like) for fixing it in the neck of a reservoir (see FIGS. 1, 5 and 6). ).
• the upper end of the device forms a head 111 (for example out of the tank including in particular a safety valve 55, a port 301 for filling / withdrawing the gas and connecting members 201 intended for cooperate with complementary connection members of a user system (not shown in Figure 1).
• the device comprises a withdrawal circuit 20 comprising, from downstream to upstream (that is to say from the external orifice 301 towards the reservoir): a first valve 160, a second isolation valve 60 and a pressure regulator 50.
• the device may comprise other organs not described for the sake of brevity.
• the device 1 expander, filter (s), valve (s)
• reference may be made, for example and in no way limiting, to WO2007048957.
• FIG. 2 schematically represents a possible structure according to the invention.
• the withdrawal circuit 20 comprises, from upstream to downstream, a filter 120, a non-return valve 220, the expander 50, the second isolation valve 60 and the first isolation valve 160 (the latter is preferably coupled fast connection means for cooperating with a filling / withdrawal socket of a user system 40).
• the device 1 comprises a conduit 240 for filling, preferably separate from the withdrawal circuit 20.
• the filling circuit 240 comprises a valve 140 and has an end connected for example upstream of the filter 120 and another end connected upstream of the first valve 160.
• the device 1 further comprises a safety valve 55 housed in a duct 155 connected on the one hand inside the tank 30 (upstream of the filter 120) and, on the other hand, upstream of the first valve 160.
• the gas possibly discharged by the safety valve 55 is directed into the low pressure chamber isolated from the outside by the first valve 160.
• the gas released by the safety valve 55 is on the contrary released in a controlled manner outside via the outlet orifice 301 (orifice ensuring the withdrawal and preferably also the filling).
• this exhaust gas is discharged by the user device which connects to the device when it opens the first valve 160 (for example via a system provided for this purpose). This is particularly advantageous in terms of safety, in particular for applications using a fuel comprising hydrogen gas (vehicles).
• FIGS. 7 and 8 illustrate in more detail a non-limiting embodiment.
• the gas G contained in the tank 30 enters the body of the device via a duct 155 (see FIGS. 7 and 8) comprising a nozzle 37 and opens radially at the level of a movable piston 6 forming part of the mechanism of the valve 55 of FIG. security.
• the piston 6 is subjected to the pressure of the gas in the direction of a stop comprising a piece 8 of fusible material such as a eutectic alloy composed for example of tin, and / or bismuth and / or lead and a porous plug 9.
• a piece 8 of fusible material such as a eutectic alloy composed for example of tin, and / or bismuth and / or lead and a porous plug 9.
• the piston 6 is preferably of the differential type, that is to say that only part of its surface (section) is subjected to the pressure of the gas, so as to limit the force transmitted to the material 8 fuse.
• the piston geometry 6 and fuse material 8 can be envisaged.
• the gas opens around the piston 6 in a circular groove 255 (see Figure 8).
• the gas remains confined to this groove 255 by means of a pair of o-rings 10, 12 each associated with an anti-extrusion ring 11, 13.
• the seals 10, 12 and anti-extrusion rings 11, 13 are
• the first seal 12 located on the side of the fusible material is preferably larger than the second seal.
• This second seal 10 seals outwardly by preventing the gas from escaping on its side.
• the first seal 12 seals vis-à-vis the internal circuit of the body of the device.
• the first seal 12 prevents the gas from reaching a second groove 80 which communicates with the low pressure chamber located between the two valves 60, 160 of the withdrawal circuit 20 (in the example shown, the piston 6 slides according to a direction substantially perpendicular to the longitudinal direction of the draw-off circuit).
• the piston 6 may comprise a third set of seal 14 and anti-extrusion ring on the side of the fuse element 8.
• This low pressure chamber located downstream of the second valve 60 thus also receives the gas expanded by the expander 50 when the second valve 60 is open (via for example a plunger forming part of the user system, see Figure 9).
• this low pressure chamber is isolated from the outside via the first valve 160 composed of a movable shutter 33 which is subjected to the action of a return spring 22 towards a closed position of the outlet orifice 301.
• All the seals necessary for the functionality of this valve 160 can be provided by the O-rings 24, 25, 26 and 126 which are respectively associated with the anti-extrusion rings 27, 127, 28 and 128, each of these seal / bushing pairs [24; 27], [25; 127], [26; 28] and [126; 128] being housed in a groove of a cannula 23.
• Said cannula 23 is enclosed in the body of the device 1 by means of a lid 4 connected to the body of the device 1 by the fastening elements 401 (see FIG. 1).
• the joint / bushing [26; 28] and [126; 128] are located on the outer cylindrical surface of the cannula 23 on either side of radial holes 231 formed in the cannula 23 so as to ensure a sealed continuity of the filling duct 240 between the body of the device 1 and the cannula 23
• the seal / bushing couples [25; 127] and [24; 27] are located on the inner cylindrical surface of the cannula 23 on either side of the radial holes 231 formed in the cannula 23 so as to ensure a leaktight continuity of the filling duct 240 between the filling tool of the reservoir (when it is connected) and the cannula 23 or for the joint / ring couple [24; 127] so as to form a second barrier for the gas between the shutter 33 (when it is
• the piston 6 is dimensioned to prevent the second seal 10 from entering the first groove 255, so as to maintain the seal at the other end of the piston 6.
• the seal 24 and the movable shutter 33 prevent the exit of gas to the outside.
• an axis 44 can engage in the orifice 301 of the device.
• the axis 44 may comprise for example radial orifices 144 at its end to communicate with the low pressure chamber. The gas then passes for example via a central channel formed in the axis 44.
• the seal 24 guarantees the seal with respect to the axis 44.
• the device 1 is shown connected to a user system 40 whose axis 44, engaged in the orifice 301, is tight on the O-ring / anti-extrusion ring torque [24; 27].
• the end of the axis 44 is in contact on the end of the movable shutter 33 forcing it to move towards the second valve 60 by surpassing the force of the return spring 22.
• the axis 44 can have two stable and distinct positions.
• Figure 3 schematically illustrates the connection of the reservoir assembly 30 with device 1 to a circuit 100 of a user 40 comprising a safety mechanism 950.
• the high-pressure gas that escapes from the reservoir (contained in the low-pressure chamber in the event of overheating or anomaly) is managed by the user circuit 100 when the user member 40 opens the first valve 160.
• high pressure exhaust can be discharged to the safety valve 950 which, through a discharge stack or the like, conducts the fluid to the atmosphere in a known and controlled area (especially in the case where the circuit 100 is part of 'a vehicle).
• the safety valve 950 which, through a discharge stack or the like, conducts the fluid to the atmosphere in a known and controlled area (especially in the case where the circuit 100 is part of 'a vehicle).
• the exit of the exhaust gas occurs via the orifice 301 (preferably single) which also serves for filling and possibly for withdrawal.
• the gas thus uses a same orifice 301 for filling / withdrawal / exhaust in case of overpressure. This allows a single connection to the tank and thus simplifies operations for a user.
• the gas evacuated in case of overpressure in the reservoir can thus be collected by this orifice to a user circuit 100, to a secure zone. This characteristic is particularly advantageous when the gas is at risk such as hydrogen.
• Figure 4 illustrates an embodiment in which the device has only one isolation valve 60.
• the gas possibly released by the safety valve 55 can be directed between the expander 55 and the valve 60.
• the invention can be applied to a device for filling and dispensing gas without a pressure regulator 50.

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

Applications Claiming Priority (2)

Publications (1)

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ID=39725074

Family Applications (1)

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• 2008
  • 2008-02-14 FR FR0850946A patent/FR2927687B1/fr not_active Expired - Fee Related
• 2009
  • 2009-02-09 US US12/867,395 patent/US8381763B2/en not_active Expired - Fee Related
  • 2009-02-09 CN CN200980104777XA patent/CN101946114B/zh not_active Expired - Fee Related
  • 2009-02-09 EP EP09711477A patent/EP2247889A1/de not_active Withdrawn
  • 2009-02-09 WO PCT/FR2009/050202 patent/WO2009101350A1/fr not_active Ceased
  • 2009-02-09 JP JP2010546380A patent/JP5507473B2/ja active Active
• 2013
  • 2013-01-25 US US13/750,350 patent/US20140034156A1/en not_active Abandoned

Non-Patent Citations (2)

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