EP1503134A1 - Verfahren und vorrichtung zum füllen eines behälters mit druckgas und zum schliessen und abdichten desselben unmittelbar danach - Google Patents

Verfahren und vorrichtung zum füllen eines behälters mit druckgas und zum schliessen und abdichten desselben unmittelbar danach Download PDF

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Publication number
EP1503134A1
EP1503134A1 EP02730306A EP02730306A EP1503134A1 EP 1503134 A1 EP1503134 A1 EP 1503134A1 EP 02730306 A EP02730306 A EP 02730306A EP 02730306 A EP02730306 A EP 02730306A EP 1503134 A1 EP1503134 A1 EP 1503134A1
Authority
EP
European Patent Office
Prior art keywords
container
filling
gas
inlet duct
stage
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.)
Withdrawn
Application number
EP02730306A
Other languages
English (en)
French (fr)
Inventor
Luis Lopez Alonso
Noelia Moreno Alvarez
Marco Antonio Carrascosa Perez
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.)
Dalphi Metal Espana SA
Original Assignee
Dalphi Metal Espana SA
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 Dalphi Metal Espana SA filed Critical Dalphi Metal Espana SA
Publication of EP1503134A1 publication Critical patent/EP1503134A1/de
Withdrawn legal-status Critical Current

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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
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • 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
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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
    • F17C2260/03—Dealing with losses
    • F17C2260/035—Dealing with losses of fluid
    • 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
    • F17C2270/0181—Airbags

Definitions

  • the present invention relates to a procedure and a device for filling a container with pressurised gas and for closing and sealing it immediately afterwards.
  • Such containers have a multitude of applications, there being among them that of the inflation of airbags used in automobile vehicles.
  • this invention refers to a procedure in which a metal ball is used as a blocking element of the gas in the inlet duct and a device to carry out both the filling of the container with gas, and blocking of its gas inlet duct.
  • EP 889279 A2 describes an apparatus and a procedure for filling a container with pressurised gas and for closing the same with an object similar to that of the present invention.
  • the apparatus has an adapter for the container which creates a gas-tight chamber to facilitate filling with gas and a conventional filling device.
  • the apparatus includes a device to effect the closure by means of a metal ball which is allowed to fall under gravity and which is welded to the extremity of the inlet duct.
  • the ball used for the closure is positioned by a rod which is also an electrode of a system for incandescent welding, condenser discharge or similar.
  • a further disadvantage is that great precision is required in the zone of contact of the ball with the inlet duct of the container to correctly carry out the welding.
  • a further disadvantage is its limitation to containers filled with inert gases because, otherwise, there would be risk of ignition or explosion because, due to the energy transferred and the impurities existing in the contact surfaces, the welding system would produce sputtering and the projection of metallic and non-metallic substances at high temperatures.
  • a further disadvantage is that by not introducing the whole of the ball into the gas inlet duct there exists a risk of rupture of the weld caused by any fall or impact which the gas container may suffer.
  • JP 11280982 describes a mechanical solution which combines the introduction of a metal ball into the gas inlet of the container with the deformation of the periphery of the inlet mouth of the said duct as a means to ensure the closure.
  • EP 0947745 A1 describes diverse solutions which employ a mechanical element situated in the inlet duct to the container and an element welded to the container on the external side of the mechanical element.
  • the mechanical element and the welded element are a single element; in other embodiments they are different elements. In this latter case, the use is mentioned of a metal ball as a mechanical element and of a male element as an element welded to the container.
  • DE 19902 940 A1 describes a solution using a metal ball which is introduced under pressure into the first part of the inlet duct to the gas generator which has a diameter equal to or somewhat greater than a second part of the duct.
  • the ball is introduced into the duct to a sufficient depth to leave a sealing surface.
  • the present invention has as its object to provide a procedure and a device for filling and closing a gas generator which resolves the disadvantages stated in respect of EP 889279 A2.
  • the procedure of filling a container with pressurised gas and of closing the gas inlet duct to the said container according to the invention includes, as in the case of EP 889279 A2, a stage of filling with the gas provided by a rapid filling system (boiler, pump ising) and a stage of blocking the said duct with a metal ball.
  • this blocking stage is not carried out by welding the ball to the duct but by forcefully driving it into it and deforming it.
  • the procedure according to the invention includes a third stage of sealing by means of a circumferential weld which closes the container at the zone external to the ball.
  • this sealing is not carried out to join the ball to the container, but to seal the container, which is closed by the ball. Due to this closure, the gas is unable to escape and this permits making a weld by following a standard procedure such as, for example, by arc.
  • the closure of the gas inlet duct is carried out by means of a first mechanical operation of forcefully driving the ball into the duct and a second operation of welding to seal the duct.
  • the device according to the invention permits the efficient realisation of the two first stages, of filling with gas and of blocking the gas inlet duct.
  • the third stage, of sealing the closure is realised once the container has been separated from the filling and sealing device, using conventional arc welding machines.
  • the filling and closure device includes means of coupling in a gas-tight manner to the container and filling it with the gas provided by the filling system and means to effect the closure of the said duct with a metal ball comprising a piston capable of forcefully driving the ball into the duct and deforming its lower part to form a plane surface, by means of which the container remains closed and ready for a subsequent sealing operation.
  • the said means of coupling may include a positioning element with lips for the purpose of positioning and producing grooves in the container to impede the escape of the gas to the exterior during the filling of the container with pressurised gas.
  • the said grooves are produced by means of a compression force which maintains in position the element to be filled and counteracts the pressure which is generated in filling the chamber.
  • An advantage of the separation of the blocking stage from the sealing stage in the procedure object of the present invention and the use of the device mentioned, solely for the blocking stage, is its applicability to the filling of containers with any gas, differing from that which occurs in EP 889279 where, given the risk of explosion, the scope of application is restricted to inert gases.
  • a further advantage of the present invention is the robustness of the closure, both due to the location of the ball within the gas inlet duct and the deforming of its lower part and the safety provided by the sealing stage.
  • a container 16 may be observed which is filled with a pressurised gas through the inlet duct 17 situated in its lower part and immediately afterwards is closed, by means of the filling and closure device 1, coupled to the same.
  • the filling and closure device 1 comprises the following elements:
  • the chamber 13, delimited by the container 16, the securing element 2, the ring 3 and the positioning element 4, will receive any possible loss of gas which occurs during filling.
  • the orifice 5 of the positioning element 4 is responsible for the chamber 13 being communicated with the exterior to prevent an increase in pressure in the same due to a possible failure in the coupling or closure between the group container 16 and the positioning element 4.
  • the filling and closure device 1 creates in it the groove 6' whose characteristics depend, as shown in Figure 2, on the forces F and F1.
  • Figure 3 also illustrates the first stage of the procedure of filling and the container 16 with the pressurised gas in which it may be observed that the gas supplied by the filling system 10 exits along the duct 8 and enters the container 16 through the inlet duct 17.
  • a chamber is created at the pressure of the filling gas, formed by the ducts 8 and 9 and by the securing element 4 and the container 16, which prevents the ball 12 being able to move of its own accord.
  • the system for filling must be correctly dimensioned to be able to carry it out in a short time.
  • the diameter of the inlet duct 17 is calculated to carry out the filling in a determined time and under conditions of Mach 1 flow at ambient temperature.
  • the configuration of the filling and closure device 1, holding the container 16 and including the chamber 13 permits that the filling of the container 16 may be carried out.
  • the blocking stage is commenced by the activation of the piston 11 which provides the required thrust to the steel ball 12 for it to be introduced into the gas inlet duct 17 of the container 16 and to serve as blocking element of the same.
  • F/D force/displacement
  • the ball 12 must be made of a softer material than that of the container 16 to perfectly fulfil its function as closure element.
  • Piston 11 has a diameter somewhat greater than that of the filling duct 17 of the container 16, thus to obtain a sufficient cross-section for clinching.
  • the blocking stage ends when the piston 11 impacts against the container 16 producing the penetration of the ball into the inlet duct 17 and the closure clinching.
  • the inlet duct 17, of the container 16 has an inlet mouth 23 of larger diameter.
  • Figure 7 there is shown the depth s of the inlet mouth 23 to be able to realise the sealing of the container by means of welding with the provision of material and the clinching distance h which the piston 11 produces.
  • FIG 8 the sealing device employing an arc welding device.
  • This device comprises a welding gun 19, welding wire 21 and shielding gas (Ar/He) 20.
  • the estimated compression force F which must be applied to the upper piston must exceed: F > n (P x ⁇ d1 2 / 4 + F1), where n is an integer, d1 is the diameter between the grooves, P is the pressure in the chamber 13, F1 is the force applied in the groove and F is the force applied to the piston 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP02730306A 2002-05-06 2002-05-06 Verfahren und vorrichtung zum füllen eines behälters mit druckgas und zum schliessen und abdichten desselben unmittelbar danach Withdrawn EP1503134A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2002/000212 WO2003093721A1 (es) 2002-05-06 2002-05-06 Procedimiento y dispositivo para llenar un contenedor con gas a presion y para cerrarlo y sellarlo inmediatamente despues

Publications (1)

Publication Number Publication Date
EP1503134A1 true EP1503134A1 (de) 2005-02-02

Family

ID=29286295

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02730306A Withdrawn EP1503134A1 (de) 2002-05-06 2002-05-06 Verfahren und vorrichtung zum füllen eines behälters mit druckgas und zum schliessen und abdichten desselben unmittelbar danach

Country Status (3)

Country Link
EP (1) EP1503134A1 (de)
AU (1) AU2002302653A1 (de)
WO (1) WO2003093721A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1610052A2 (de) 2004-05-20 2005-12-28 Nippon Tansan Gas Co., Ltd. Behälter für hochverdichtetes verbrennungsförderndes oder brennbares Gas und Verfahren zur Behälterabdichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2457501C2 (de) * 1974-12-05 1984-07-26 Gesellschaft für Hydraulik-Zubehör mbH, 6603 Sulzbach "Einrichtung zum Füllen und Verschließen einer eine Füllöffnung aufweisenden Druckkammer, insbesondere eines hydropneumatischen Speichers."
CA1213913A (en) * 1982-06-01 1986-11-12 Michael R. Bethell Gas pressurized shock absorber assembly
FR2623856B1 (fr) * 1987-12-01 1993-05-14 Peugeot Accumulateur hydropneumatique et son dispositif de fabrication
US5760360A (en) * 1996-01-16 1998-06-02 Rwc Incorporated Apparatus and method for charging canisters with a high pressure gas
US5763817A (en) * 1996-08-14 1998-06-09 Bendix-Atlantic Inflator Company Center gas fill inflator
EP0889279A3 (de) * 1997-07-02 1999-04-07 Robert Bosch Corporation Vorrichtung und Verfahren zur Füllung und Versiegelung eines Gefässes mit einem Hochdruckgas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03093721A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1610052A2 (de) 2004-05-20 2005-12-28 Nippon Tansan Gas Co., Ltd. Behälter für hochverdichtetes verbrennungsförderndes oder brennbares Gas und Verfahren zur Behälterabdichtung
EP1610052A3 (de) * 2004-05-20 2010-11-03 Nippon Tansan Gas Co., Ltd. Behälter für hochverdichtetes verbrennungsförderndes oder brennbares Gas und Verfahren zur Behälterabdichtung

Also Published As

Publication number Publication date
AU2002302653A1 (en) 2003-11-17
WO2003093721A1 (es) 2003-11-13

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