EP2904306B1 - Dispositif de clapet de pression résiduelle, robinet et bouteille comportant un tel dispositif - Google Patents

Dispositif de clapet de pression résiduelle, robinet et bouteille comportant un tel dispositif Download PDF

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Publication number
EP2904306B1
EP2904306B1 EP13782772.1A EP13782772A EP2904306B1 EP 2904306 B1 EP2904306 B1 EP 2904306B1 EP 13782772 A EP13782772 A EP 13782772A EP 2904306 B1 EP2904306 B1 EP 2904306B1
Authority
EP
European Patent Office
Prior art keywords
closure member
gas
diameter
seat
pressure
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.)
Active
Application number
EP13782772.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2904306A1 (fr
Inventor
Guillaume Roberge
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
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 LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Publication of EP2904306A1 publication Critical patent/EP2904306A1/fr
Application granted granted Critical
Publication of EP2904306B1 publication Critical patent/EP2904306B1/fr
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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
    • 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
    • F17C2205/0338—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
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/048—Methods for emptying or filling by maintaining residual pressure
    • 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
    • Y10T137/7758—Pilot or servo controlled

Definitions

  • the present invention relates to a residual pressure valve device and a valve and a gas cylinder comprising such a device.
  • Residual pressure valve devices are provided to prevent complete emptying of a pressurized gas cylinder. These devices are generally arranged upstream of a pressure regulator (upstream in the direction of withdrawal of the gas).
  • Such a device is known to DE 197 09 096 A1 .
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • the residual pressure valve device comprises a body, a shutter movable in the body relative to a seat for selectively allowing or interrupting a flow of gas between a fluid inlet and a fluid outlet, a biasing member requesting by default the shutter towards the seat towards its position of interruption of flow, the shutter comprising an internal channel having a first end in communication with the gas inlet and a second end opening, via a calibrated orifice, in a chamber the control chamber being closed sealingly by a downstream end of the shutter so that, when the gas pressure in the control chamber reaches a determined threshold, this pressure causes a force displacement of the shutter against the force of the return member, to move the shutter of the seat and thus allow a flow of gas between the inlet and the fluid outlet, the body of the shutter comprising, between the seat and the downstream end of the shutter, a first portion forming a male member movable in translation in a female passage of the body with a determined adjustment forming a restriction ensuring a Partial and progressive opening of the gas passage between
  • the invention also relates to a pressurized gas bottle tap, comprising a withdrawal circuit having an upstream end intended to be connected to a storage volume of a pressurized gas bottle and a downstream end intended to be connected to a gas user apparatus withdrawn from the bottle, the withdrawal circuit comprising, arranged in series upstream between the upstream end and the downstream end, an isolation valve and a residual pressure valve device, wherein the device residual pressure valve is in accordance with any of the above characteristics or hereinafter.
  • the invention also relates to a pressurized gas cylinder comprising such a valve.
  • the device 100 of residual pressure valve illustrated in the figures comprises a body 9 housing a movable shutter 1. More specifically, the shutter 1 is movable in translation relative to a seat 2 to selectively close or open a gas passage between a fluid inlet 3 and a fluid outlet 4.
  • the inlet 3 is for example connected to the outlet of an isolation valve 14 situated upstream on a circuit 12 for withdrawing a valve 15 from a bottle 13 of gas under pressure (cf. figure 1 ).
  • the fluid outlet 4 is for example connected to a pressure regulator 16 located downstream on the withdrawal circuit 12 and which is configured to ensure a relaxation of the gas pressure to a predetermined value.
  • the withdrawal circuit 12 comprises for this purpose an upstream end 112 connected to the storage volume of the bottle 13 and a downstream end 212 intended to be connected selectively to a gas user device withdrawn from the bottle 13.
  • the device 100 comprises a return member 5 biasing the shutter 1 by default to the seat 2 (from an upstream direction to a downstream direction).
  • the shutter 1 comprises an internal channel 6 having a first end in communication with the gas inlet 3 and a second end opening, via a calibrated orifice 8, in a control chamber 7 formed in the body 9.
  • pilot chamber 7 is closed sealingly at one end by a downstream end of the shutter 1 (for example via a seal 17, in particular O-ring).
  • the internal channel 6 can convey high pressure gas that arrives through the inlet 3 (for example when opening the upstream valve 14) into the control chamber 7.
  • the gas pressure in the control chamber 7 reaches a predetermined threshold, this pressure causes a sufficient displacement force on the shutter 1 from the downstream direction to the upstream direction to move it away from the seat 2. This then allows a flow of gas between the fluid inlet 3 and the fluid outlet 4.
  • This internal channel architecture and control chamber 7 forms a mechanism requiring sufficient upstream gas pressure to open the valve (i.e., a residual pressure valve mechanism).
  • the body of the shutter 1 comprises, between its portion cooperating selectively with the seat 2 and the downstream end of the shutter 1, a first portion 11 forming a male member movable in translation in a female passage of the body 9 with a determined adjustment forming a restriction ensuring a partial and progressive opening of the opening for the gas between the inlet 3 and the outlet 4 (cf. figures 3 and 4 ).
  • the first portion 11 is cylindrical and has a determined diameter D4 whereas the female passage of the body 9 which receives it is a cylindrical bore of diameter D5 determined so as to form a usual game, fine or precise, for example of the type H8 f7 according to the ISO standard of adjustment.
  • the shutter 1 moves away from its seat 2 and opens a passage of gas between the first portion 11 of the shutter and the body 9.
  • the diameter D2 of the opening delimited by the seat 2 is equal to or very close to the section (diameter D5) of the female passage of the body 9.
  • the small clearance between the first portion 11 of the shutter and the body 9 ensures a progressive gas passage and a gradual opening (see the path of the gas symbolized by arrows to figure 3 and 4 ).
  • the rise in the pressure downstream of the shutter 1 is all the more progressive as the shutter 1 has a large inertia and that the rolling at the adjustment is carried out along a large stroke along the shutter 1 (for example, the first portion has a length of between 2 and 6mm).
  • the shutter 1 continues its stroke against the spring 5 until a second portion 12 of the shutter arrives at the passage of the body 9.
  • This second portion 12 has a smaller section than the first portion and allows a more massive gas passage (cf. figure 5 ).
  • the section of passage between the body 9 and the second portion 12 (corresponding to a state of the open valve) is chosen so that the pressure drop generated by the passage of the gas is negligible, typically this section is at least equivalent to the passage section of the valve 14 located upstream in the circuit 12.
  • the device makes it possible to maintain a flow rate and an outlet pressure up to the calibration threshold of the residual pressure valve device without creating a parasitic pressure drop, as is the case in the residual pressure valves ("RPV" ”) Classics.
  • the device does not limit the withdrawal of gas from the bottle beyond its calibration pressure.
  • this device has an architecture that does not trap gas under pressure in its mechanism that can cause damage or requiring the use of special seals (via plastomers for example).
  • the structure of the device avoids the trapping of high pressure gas downstream of the residual pressure valve as is conventionally the case according to the prior art. Indeed, when pressurized gas is trapped in the valve, this generates significant efforts, particularly in terms of sealing at the seat. This can lead to a destruction of the seal.
  • the geometry of the device makes it possible to use elastomers (typically O-rings 17, 27) thus making it possible to obtain very good levels of pressure. seals unlike seals with plastic (such as for example PEEK®, TORLON®, or TEFLON®).
  • the device incorporates both a residual pressure holding function and a progressive opening device reducing or eliminating shocks such as "water hammer”.
  • the device can absorb sudden pressure rises due to rapid opening of an upstream isolation valve 14.
  • the upstream end of the shutter 1 has a diameter D1 for example between 4 and 5mm, for example 4.3mm.
  • the diameter D2 of the seat is equal for example to 4.3 mm as the diameter D3 of the lower end of the shutter 1.
  • the diameter D4 of the first portion 11 of the shutter 1 is equal for example to 4.3mm.
  • the diameter D5 of the bore forming the passage for the shutter 1 is itself determined with respect to the diameter of the first portion 11 according to the desired adjustment (for example H8, f7)
  • the diameter D6 of the calibrated orifice is for example equal to 0.1 mm and the force of the return spring 5 is for example 30Newtons.
  • the opening of the passage is obtained when the pressure in the control chamber 7 reaches about 90 bar.
  • the opening of the valve takes place when the pressure in the pilot chamber 7 reaches about 22bar.
  • the shutter 1 closes the passage again by leaning on the seat 2 at the end of withdrawal, at an inlet pressure of about 21 bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Safety Valves (AREA)
  • Lift Valve (AREA)
  • Control Of Fluid Pressure (AREA)
EP13782772.1A 2012-10-02 2013-10-01 Dispositif de clapet de pression résiduelle, robinet et bouteille comportant un tel dispositif Active EP2904306B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1259299A FR2996278B1 (fr) 2012-10-02 2012-10-02 Dispositif de clapet de pression residuelle, robinet et bouteille comportant un tel dispositif
PCT/FR2013/052334 WO2014053764A1 (fr) 2012-10-02 2013-10-01 Dispositif de clapet de pression résiduelle, robinet et bouteille comportant un tel dispositif

Publications (2)

Publication Number Publication Date
EP2904306A1 EP2904306A1 (fr) 2015-08-12
EP2904306B1 true EP2904306B1 (fr) 2016-11-30

Family

ID=47257992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13782772.1A Active EP2904306B1 (fr) 2012-10-02 2013-10-01 Dispositif de clapet de pression résiduelle, robinet et bouteille comportant un tel dispositif

Country Status (8)

Country Link
US (1) US9677715B2 (ja)
EP (1) EP2904306B1 (ja)
JP (1) JP6254171B2 (ja)
KR (1) KR20150063398A (ja)
CN (1) CN104685288B (ja)
CA (1) CA2884804A1 (ja)
FR (1) FR2996278B1 (ja)
WO (1) WO2014053764A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3030740B1 (fr) * 2014-12-18 2016-12-30 Coutier Moulage Gen Ind Dispositif de mesure de pression et systeme de freinage comprenant un tel dispositif de mesure de pression
FR3033386B1 (fr) 2015-03-04 2017-10-27 Air Liquide Robinet, recipient et procedes de remplissage, de soutirage et de mise sous vide
FR3093781B1 (fr) * 2019-03-12 2021-02-12 Air Liquide Robinet, récipient de fluide sous pression et procédés de remplissage et de soutirage.

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Also Published As

Publication number Publication date
FR2996278B1 (fr) 2014-10-31
CA2884804A1 (fr) 2014-04-10
EP2904306A1 (fr) 2015-08-12
JP2015532401A (ja) 2015-11-09
US20150276132A1 (en) 2015-10-01
WO2014053764A1 (fr) 2014-04-10
FR2996278A1 (fr) 2014-04-04
US9677715B2 (en) 2017-06-13
JP6254171B2 (ja) 2017-12-27
KR20150063398A (ko) 2015-06-09
CN104685288B (zh) 2016-09-07
CN104685288A (zh) 2015-06-03

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