EP0589015B1 - Versorgungseinheit für industriegaz in einem tragbaren gerät - Google Patents

Versorgungseinheit für industriegaz in einem tragbaren gerät Download PDF

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Publication number
EP0589015B1
EP0589015B1 EP93907905A EP93907905A EP0589015B1 EP 0589015 B1 EP0589015 B1 EP 0589015B1 EP 93907905 A EP93907905 A EP 93907905A EP 93907905 A EP93907905 A EP 93907905A EP 0589015 B1 EP0589015 B1 EP 0589015B1
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EP
European Patent Office
Prior art keywords
assembly according
gas
casing
assembly
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.)
Expired - Lifetime
Application number
EP93907905A
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English (en)
French (fr)
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EP0589015A1 (de
Inventor
Jean-Renaud Brugerolle
Alain Robin
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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
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Publication of EP0589015A1 publication Critical patent/EP0589015A1/de
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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
    • F17C13/08—Mounting arrangements for vessels
    • F17C13/084—Mounting arrangements for vessels for small-sized storage vessels, e.g. compressed gas cylinders or bottles, disposable gas vessels, vessels adapted for automotive use
    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • 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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • 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
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • 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
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2205/0111—Boxes
    • 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
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0165—Details of mounting arrangements for transport with handgrip
    • 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
    • F17C2205/037—Quick connecting means, e.g. couplings
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • 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
    • F17C2221/016—Noble gases (Ar, Kr, Xe)
    • 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
    • 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
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing
    • 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
    • F17C2270/05—Applications for industrial use
    • F17C2270/0545—Tools

Definitions

  • the present invention relates to gas user devices, especially industrial and, more particularly, a pressurized gas supply assembly of a portable user device consuming said gas, of the type comprising an intermediate capacity of gas selectively connectable to a source of gas under pressure, which can be attached to the user device to form a transportable assembly and connectable to the user device via a valve means for supplying it.
  • Document GB-A-1,291,881 describes a system for recharging compressed air from a vaporizer bottle, the source of compressed air consisting of an electric motor-compressor unit.
  • the industrial gas user devices in particular in welding or medical applications, are supplied by gas cylinders, often of heavy weight, whose autonomy generally exceeds the needs of the specific application of the device.
  • gas cylinders often of heavy weight, whose autonomy generally exceeds the needs of the specific application of the device.
  • the transport of the bottle is often necessary and its size and weight weigh heavily on the handling and safety of use.
  • the object of the present invention is to propose a gas supply assembly eliminating these problems, greatly facilitating the use of the devices and the supply of the supply gas, without significant additional investment costs, allowing better management of the consumption of gas and providing increased security.
  • the intermediate capacity is arranged in a first portable housing and is associated, in the first housing, with a gas outlet circuit connectable to the user device and incorporating a first pressure reducer and a first gas flow adjustment valve, and in that it comprises removable means for securing the first housing to the user device to constitute a transportable operating assembly.
  • the intermediate capacity is associated, in the first housing, with an element of quick connection to an outlet of a loading station connected to the high pressure gas source via at least a second pressure reducer and advantageously comprising a second housing having a profiled housing for receiving a part of the first housing and in which the head of the exit.
  • the industrial gas supply assembly shown in FIG. 1, particularly suitable for a portable welding device, TIG, MIG-MAG or OXYFLAMME, essentially comprises a source of high pressure gas 1, for example argon or mixture of argon, at a pressure typically of 200 or 300 ⁇ 10 5 Pa, a charger unit 2, and a gas reserve unit 3 associated with the portable user device 4.
  • the source of high pressure gas 1, advantageously of large capacity and located in an isolated room, replenished at periodic intervals, is connected, in the example shown, via a first regulator 5 and a hose 6, to a supply circuit 7 integrated in the charger housing 2, the hose 6 advantageously being integral with the housing 2.
  • the gas reserve box 3 contains a gas capacity 8, constituted for example by a medium-pressure gas cylinder, less than 100 ⁇ 10 5 Pa, for example between 30 and 50 ⁇ 10 5 Pa, of small dimensions and made of metal. or of fibrous material, and its gas inlet 9 and gas outlet circuits 10, the latter opening, outside the housing 3, by a connector 11 connectable, by a hose 12, at the inlet 13 d supply to the user device 4.
  • the capacity 8 includes a second pressure reducer 14 whose output is connected to the output circuit 10.
  • the input of the input circuit 9 and the output of the supply circuit 7 are provided with two cooperating elements 15, 16, respectively, forming a quick connection system typically of the plug-in type between the circuits 7 and 9.
  • the upper part of the charger unit 2 and the lower part of the gas reserve unit 3 are shaped in a complementary manner so that the lower part of the unit 3 can be partially received in a perfectly defined position in the charger box 2.
  • the lower part of the housing 3 has a recessed interior profile 17 with four lateral legs 18 projecting, the upper part of the housing 2 forming a housing 19 corresponding, in hollow, to the lower profile of the housing 3, including the feet 18, so that, when the housing 3 is received in the housing 2, the two elements 15 and 16 of the connection means cooperate in connection configuration as shown in FIG. 2.
  • the element of connection 15, projecting slightly outwards in the recessed profile 17, comprises a housing 20 opening towards the exterior intended to receive the upper end of the connection element 16 projecting out of the profile housing 19 of the housing 2
  • the element 15 comprises a gas inlet passage constituted by a stepped bore 21 comprising an internal shoulder 22 forming a seat for a valve element 23 biased in closed position, against the seat 22, by a spring 24.
  • the element 16 has a gas passage formed by a stepped bore 25 having an internal shoulder 26 forming a seat for a valve element 27 urged in the closed position, against the seat 26, by a spring 28.
  • the element 15 comprises a stationary rod 29 projecting from the gas inlet passage and cooperating with a push rod 30 integral with the valve element 27 and extending in the gas outlet passage of the element 16.
  • the element 15 carries an O-ring 31 cooperating with a circular projection at the end of the element 16.
  • the reserve housing 3 is secured to the portable welding device 4 by unlockable connection means 32, such as self-locking hooks, the housing 3 thus constituting a support base for the device 4 preventing the latter from being in direct contact with an aggressive environment.
  • unlockable connection means 32 such as self-locking hooks
  • the box 3 has a built-in handle 33.
  • the equipment of the housing 3 advantageously comprises a valve 34 for adjusting the flow rate of gas supplied by the capacity 8 to the appliance 4, an indicator 35 for the flow delivered, a pressure gauge 36 in the capacity 8 and a charge indicator 37.
  • the charger box 2 is advantageously fixed to the floor of a workshop, but the box 2, like the gas source 1, can also be arranged in a vehicle, for example in an ambulance for medical applications with a user device 4 consisting of a portable oxygen therapy device.
  • the charger unit can be associated with the generator in a compact assembly.
  • the housing 3 is constituted by the assembly of two lower half-shells 40A, 40B and a cover 41, made of rigid plastic material, for example PVC, the cover 41 being secured to the half-shells 40 by screws such as 42.
  • the cover 41 has two opposite recesses forming two front and rear handling handles 33A and 33B, respectively.
  • the upper part of the cover 41 is substantially flat and is provided with two grooved strips 43 of elastomeric material used for flexible and anti-friction mounting of the user device 4 on the housing 3 and obscuring the screws 42 to make the housing 3 non-removable.
  • the latter is completed by a front partition 44 and by a rear partition 45 blocked in the elements 40 and 41.
  • the medium pressure gas cylinder E here consists of two stamped parts welded to each other 8A and 8B, as can be seen in the partial section of Figure 3, made for example of steel BS2 or BS3.
  • the element 15 for quick connection or charging of the bottle 8 is mounted in a ring 46 welded into an opening in the side wall of the front stamped part 8A inside thereof.
  • the element 15 here comprises, in series, an upstream filter 47 and a downstream non-return valve 48.
  • the element 15 further comprises a tapered flared front part 49 used for guiding and centering the corresponding connection element of the output head 16 of the charger unit 2, as will be seen later.
  • the low pressure regulator 14 / flow regulator 34 assembly is mounted on the bottle 8 by means of a ring 50 welded into an opening in the bottom of the front stamped part 8A, inside the latter. , and comprising, extending inside the bottle 8, in series, upstream of the regulator 14, an upstream filter 51, protecting the pressure reducer 14 against particles likely to be present in the bottle 8, in particular of scale resulting from the manufacture of the bottle, and a check valve 52 ensuring the maintenance of a residual pressure, of the order of 1.5 x 10 5 Pa, in the bottle 8 and thus preventing, like the valve 48, any entry of air into the latter.
  • the check valve 52 also performs the function of a non-return valve.
  • Safety against overpressures in the housing 3 is ensured, at the pressure reducer 14, by a high pressure valve 53, opening when the pressure in the tank 8 exceeds a value of 50 ⁇ 10 5 Pa, and a low pressure valve 54, connected to the low pressure chamber of the regulator 14, and preventing the delivery of a pressure in excess of approximately 2 ⁇ 10 5 Pa into the outlet pipe 10 which here extends towards the rear of the housing 3 up to the connector 11 for connection to the hose 12 of the user device, the connector 11, mounted in the rear wall 45, being advantageously provided with a non-return valve to keep the pipe 10 under pressure.
  • the bottle 8 is positioned and immobilized in the housing 3 by means of a set of internal ribs 55 in the elements 40 and 41, between which are arranged foam linings 56, a foam mat 57 also being disposed between the bottom of the bottle 8 and the rear partition 45.
  • the regulator 14 / flow regulator assembly 34 is positioned and maintained in the front partition 44 by an elastic ring 58 mounted in a central orifice in the partition 44.
  • the housing 3 includes a pressure gauge 59 mounted in the front bulkhead 44 and connected to the low pressure zone of the pressure reducer 14. The housing 3 being brought to be placed on the ground and moved thereon, the lower surfaces of the housing 3 are advantageously provided with abrasion-resistant polyamide pads (not shown).
  • the individual port of the housing 3 and its attachment to the user device 4 are carried out by two straps 32 passing through openings 60 formed in the housing 3 and whose inner strand extends in contact with the bottle 8, as can be seen in FIG. 3, so that the straps 32 bear on the bottle 8 when the straps are tightened around the user device to secure it to the housing 3 and constitute the assembly transportable autonomous operating theater.
  • the charger unit 2 always comprising, at its upper part, a housing 19 shaped to correspond to the profile of the lower part of the unit 3, here comprises, in series downstream of the internal pipe high pressure supply 7, connected directly to the high pressure gas source, a first pressure reducing valve 61 reducing the high pressure to a value less than 100 x 10 5 Pa and a second pressure reducing valve 62 reducing the pressure to the operating pressure between 30 and 50 x 10 5 Pa in a transfer pipe 63 connected to the connection head 16 intended to cooperate with the connection element 15 of the housing 3 and projecting into the housing 19.
  • the pressure reducer assembly 61, 62 is completed by a flow regulator 64 projecting from the housing 2.
  • the high pressure in the first regulator 61 is read on a pressure gauge 65 mounted in the housing 2.
  • the second pressure reducer - or medium pressure regulator - 62 in the housing 2 comprises a safety valve against overpressure 66.
  • the housing 2 further comprises a connector 67, provided with a non-return valve, connected by a tube 68 to the outlet of the regulator 62 and making it possible to supply, via the housing 2, a fixed work station while retaining the role of the housing 2 as a charger for housings 3.
  • the housing 2 is advantageously connected to the source of high pressure gas 1 by a hose 6 comprising a connection end piece 69 provided, like the end piece 11 of the housing 3 and the end piece 67 of the housing 3, with a non-return valve.
  • a hose 6 comprising a connection end piece 69 provided, like the end piece 11 of the housing 3 and the end piece 67 of the housing 3, with a non-return valve.
  • connection head 16 of the housing 2 here comprises a frustoconical external profile 70 intended to cooperate with the frustoconical inlet 49 of the connection element 15, and further comprises a retractable tubular skirt 71 protecting the push rod 30 from the head 16 and pushed back by the connection element 15 during the coupling of the latter with the head 16.
  • the flow-regulating taps 34 and 64 of the housings 3 and 2 are advantageously of the indexing type to provide a range of preset preset flows.
  • the user device 4 can be an oxygen therapy or ventilation station, in which case the tank 1 is a pressurized gaseous oxygen tank or a combined liquid oxygen tank-evaporator assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Arc Welding In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Claims (15)

  1. Vorrichtung zur Versorgung eines tragbaren Anwendergerätes (4) mit unter Druck stehendem Gas, umfassend ein wahlweise (15, 16) an eine Druckgasquelle (1) anschließbares, mit dem Anwendergerät zum Bilden eines tragbaren Ganzen koppelbares und mit dem Anwendergerät über ein Ventilmittel (34) zur Versorgung desselben verbindbares Gaszwischenvolumen (8), dadurch gekennzeichnet, daß das Zwischenvolumen (8) in einem ersten tragbaren Gehäuse (3) angeordnet und in dem ersten Gehäuse (3) Teil eines (bei 11) mit dem Anwendergerät (4) verbindbaren und einen ersten Druckminderer (14) und ein erstes Ventil (34) zum Einstellen der Gasdurchflußmenge enthaltenden Gasausgangskreises (10) ist, und daß es abnehmbare Koppelmittel (32) zur Verbindung des ersten Gehäuses (3) mit dem Anwendergerät (4) zum Bilden einer tragbaren Funktionsgruppe umfaßt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Zwischenvolumen (8) in dem ersten Gehäuse (3) mit einem Mittel (15) zum Schnellanschluß an einen Auslaß (16) einer mit der Gasquelle (1) über zumindest einen zweiten Druckminderer (5; 61, 62) verbundenen Füllstation (2) verbunden ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Füllstation (2) einen zweiten Behälter umfaßt, der eine profilierte Ausnehmung (19) zum Aufnehmen eines Teils des ersten Behälters (3) bildet, in welchem der Auslaßkopf (16) angeordnet ist.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Anschlußmittel (15) und der Auslaßkopf (16) jeweils eine Verschlußklappe (23; 27) umfassen, die normalerweise geschlossen ist und während des Zusammenwirkens des Elements (15) und des Auslaßkopfs (16) in eine Öffnungsstellung verschoben wird.
  5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß das Zwischenvolumen (8) durch eine kleine Gasflasche gebildet wird, die an einem Ende das erste Durchflußmengen-Einstellventil (34) trägt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Schnellanschlußmittel (15) an einem Abschnitt der Seitenwand der Flasche (8) angebracht ist.
  7. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Gasausgangskreis (10) über eine flexible Leitung (12) mit dem Anwendergerät (4) verbindbar ist.
  8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Zwischenvolumen (8) in dem ersten, aus Kunststoff hergestellten und eine mit einer Zugangsöffnung zu dem ersten Ventil (34) versehene Stirnwand (44) umfassenden Behälter eingeschlossen ist.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Koppelmittel (32) aus zumindest einem mit dem ersten Behälter (3) verbundenen Gurt bestehen.
  10. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der erste Behälter (3) zumindest einen Tragegriff (33; 33A, 33B) umfaßt.
  11. Vorrichtung nach einem der Ansprüche 3 bis 10, dadurch gekennzeichnet, daß der zweite Druckminderer (61, 62) in dem zweiten Behälter (2) angeordnet ist.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß der zweite Behälter (2) ein zweites Durchflußmengen-Einstellventil (64) umfaßt.
  13. Vorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß der zweite Behälter (2) außerdem einen mit einem Anwendergerät verbindbaren Niederdruckgas-Auslaß (67) umfaßt.
  14. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Anwendergerät (4) ein elektrisches Schweißgerät ist.
  15. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß das Gas hauptsächlich aus Argon besteht.
EP93907905A 1992-03-31 1993-03-29 Versorgungseinheit für industriegaz in einem tragbaren gerät Expired - Lifetime EP0589015B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9203898 1992-03-31
FR9203898A FR2689209B1 (fr) 1992-03-31 1992-03-31 Ensemble d'alimentation en gaz industriel d'un appareil utilisateur portable.
PCT/FR1993/000313 WO1993020383A1 (fr) 1992-03-31 1993-03-29 Ensemble d'alimentation en gaz industriel d'un appareil utilisateur portable

Publications (2)

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EP0589015A1 EP0589015A1 (de) 1994-03-30
EP0589015B1 true EP0589015B1 (de) 1996-06-12

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US (1) US5472024A (de)
EP (1) EP0589015B1 (de)
JP (1) JP3806440B2 (de)
CN (1) CN1036486C (de)
AR (1) AR248308A1 (de)
AT (1) ATE139320T1 (de)
AU (1) AU657410B2 (de)
BR (1) BR9305456A (de)
CA (1) CA2110274C (de)
DE (1) DE69303135T2 (de)
DK (1) DK0589015T3 (de)
ES (1) ES2089812T3 (de)
FI (1) FI935294A (de)
FR (1) FR2689209B1 (de)
GR (1) GR3020630T3 (de)
WO (1) WO1993020383A1 (de)
ZA (1) ZA932325B (de)

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DE20208820U1 (de) 2002-06-07 2002-08-29 Rehm GmbH u. Co Schweißtechnik, 73066 Uhingen Schweißgerät mit einer Gasflasche
US6977358B2 (en) * 2003-07-02 2005-12-20 Illinois Tool Works Inc. Welder with integrated gas bottle
US7355141B2 (en) * 2003-12-11 2008-04-08 Illinois Tool Works Inc. Welder with integrated regulator
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US7423238B2 (en) * 2004-05-12 2008-09-09 Illinois Tool Works Inc. Gas system for wire feeding devices
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FR2875891B1 (fr) * 2004-09-29 2008-06-13 Air Liquide Sante Int Bouteille de gaz medical avec coque protectrice peripherique
FR2878610B1 (fr) * 2004-11-26 2007-01-19 Air Liquide Ensemble amovible de stockage de gaz sous pression et utilisation d'un tel ensemble dans un vehicule automobile
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FR2896229A1 (fr) * 2006-01-18 2007-07-20 Air Liquide Systeme de conditionnement en fluide de reservoirs reutilisables
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EP3484651A1 (de) * 2016-07-14 2019-05-22 Esab Ab Tragbares schweisssystem mit einem hauptgehäuse mit mechanischem befestigungsmechanismus für die kupplung
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AR248308A1 (es) 1995-07-12
GR3020630T3 (en) 1996-10-31
AU3893093A (en) 1993-11-08
AU657410B2 (en) 1995-03-09
CN1079928A (zh) 1993-12-29
CN1036486C (zh) 1997-11-19
FI935294A0 (fi) 1993-11-29
BR9305456A (pt) 1994-09-27
US5472024A (en) 1995-12-05
ATE139320T1 (de) 1996-06-15
CA2110274C (fr) 2004-06-01
DE69303135D1 (de) 1996-07-18
DE69303135T2 (de) 1996-10-10
DK0589015T3 (da) 1996-07-01
JPH06508198A (ja) 1994-09-14
WO1993020383A1 (fr) 1993-10-14
FR2689209B1 (fr) 1997-01-10
FR2689209A1 (fr) 1993-10-01
FI935294A (fi) 1994-01-24
JP3806440B2 (ja) 2006-08-09
ZA932325B (en) 1993-12-20
ES2089812T3 (es) 1996-10-01
EP0589015A1 (de) 1994-03-30
CA2110274A1 (fr) 1993-10-14

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