EP1258671B1 - Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit - Google Patents

Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit Download PDF

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Publication number
EP1258671B1
EP1258671B1 EP01401173A EP01401173A EP1258671B1 EP 1258671 B1 EP1258671 B1 EP 1258671B1 EP 01401173 A EP01401173 A EP 01401173A EP 01401173 A EP01401173 A EP 01401173A EP 1258671 B1 EP1258671 B1 EP 1258671B1
Authority
EP
European Patent Office
Prior art keywords
channel
tank
subassembly
outlet passage
passage
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
EP01401173A
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English (en)
French (fr)
Other versions
EP1258671A1 (de
Inventor
Guillaume Boucher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to DE60100174T priority Critical patent/DE60100174T2/de
Priority to EP01401173A priority patent/EP1258671B1/de
Priority to AT01401173T priority patent/ATE237098T1/de
Priority to ES01401173T priority patent/ES2195982T3/es
Publication of EP1258671A1 publication Critical patent/EP1258671A1/de
Application granted granted Critical
Publication of EP1258671B1 publication Critical patent/EP1258671B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F17C13/04—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
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • 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
    • F17C2203/0643—Stainless 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
    • 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
    • F17C2205/0382—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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG

Definitions

  • the present invention relates to cryogenic fluid reservoirs and, more particularly the devices for closing and connecting to external lines of such tanks, of the type comprising a subassembly monobloc generally disk-shaped and defining at least two channels of fluid passage, according to the characteristics of the preamble of claim 1.
  • a device of this type is shown schematically in the US-A-4,956,975.
  • Known devices for closing and connecting reservoirs of cryogenic fluid consist of a mechanically welded assembly of a shutter plate and machined and fixed connection pieces typically by welding, into orifices machined in the closure plate. This technique is particularly expensive because of the number of pieces different to make, store and assemble, and the large number of rejects resulting from the machining and welding problems of the constituent materials, typically austenitic stainless steels.
  • the object of the present invention is to propose an architecture of simplified device to remove most of these problems and greatly reduce manufacturing and assembly costs.
  • the invention proposes a device comprising a subset monoblock cast stainless steel, typically made by lost wax casting having a main portion having a face forming a joint plane.
  • the subassembly monoblock is made by molding from a steel alloy austenitic stainless steel comprising at least 16%, typically between 16 and 18.5% of chromium and at least 10%, typically between 10 and 13.5% of nickel, and having, in the liquid phase, a ferrite content of greater than 2%, preferably not exceeding 6%.
  • the present invention also relates to a fluid reservoir cryogenic, in particular liquid oxygen for home oxygen therapy, equipped with such a device and typically provided with two heaters atmospheres connected to liquid and gas outlet device.
  • FIG. 1 shows a device according to the invention place on a collar flange 2 mounted in the neck of a cryogenic tank 3.
  • the device according to the invention comprises a monobloc subassembly 1 made of molded stainless steel comprising essentially a disk-shaped main portion 4 having a surface lower transverse forming joint plane 5 mounted plated on the flange 2 provided with an annular seal 6.
  • the subassembly 1 comprises a central chimney 7 orthogonal to the disc 4, substantially coaxial with the latter, and defining a passage 8.
  • a first transverse channel 9 In the main part 4 are defined, with protruding bosses on the face opposite to the joint plane 5, a first transverse channel 9, a second transversal channel 10 orthogonal to the previous and a third channel transverse 11 in the plane of the channel 10 and diametrically opposite to the latter.
  • the channel 10 opens at the bottom of the disk 4 by a cavity 12 while the channel 11 opens, him, by a channel portion 13 formed in part in a protruding shoulder 14 where also opens downwards the channel 8.
  • the channel 9 similarly opens downwards by a portion channel formed in a protruding shoulder 15.
  • a axial channel 16 passing through the disk 4 receiving a part 17 allowing the electrical connection to a level 18 capacitive gauge.
  • the monobloc subassembly 1 is mounted on the flange 2 by three screws angularly distributed (not shown) and by a column 19 at the end threaded lower part also serving, via a support plate 20, to support a flow control valve housing 21, as will be seen later.
  • the channel 9 receives the upstream end 22 of an atmospheric heater coil 23, such described in the French patent application FR 99 13617, the portion of channel in the shoulder 15 receiving the end of a dip tube 24 extending to the vicinity of the bottom of the inner container of the reservoir 3.
  • a dip tube 25 is mounted in the lower end of the channel 8. The latter is extended upwards by a flare formed in a enlarged diameter head 26 having an external thread 27 and receiving the lower end of a valve filling terminal 28 maintained in place on the chimney 7 by a nut 29 cooperating with the thread 27.
  • transverse channel 10 At the transverse channel 10 is connected the upstream end of a coil atmospheric heater 30 whose downstream end is connected to the housing of valve 21 mentioned above.
  • Channel 11 is connected externally to a vent valve (not shown).
  • tank 3 operates at a low pressure, close to 3 bar, via the valve terminal 28, the channel 8 and the tube 25, the internal volume of the tank being, during this operation, in communication with the atmosphere ambient via channels 13 and 11 and the vent valve downstream of this latest.
  • an overflow tube (not shown) extending into the tank, is brazed in channel 13 to limit the height of liquid stored in the tank.
  • fluid sampling cryogenic liquid form contained in the tank, pressurved by the gas in the tank is carried out by the tube 24, the channel 9 and the coil 23 before reaching the flow control valve housing 21 providing, through its outlet 31, a flow rate gas flow to a user.
  • the sampling of the gaseous phase in the tank 3 is carried out by the channel 10 and the coil 30 before joining the valve housing21, provided with minus one safety relief valve 32.
  • the liquid outlet channel 9 is placed opposite the passage 16 for mounting the probe 18 so that the liquid withdrawal is carried out with a minimum of transmission of frigories to the crossing 17 of the probe 18.
  • the channel 11 extends out of the disk 4 by a tubular extension transversal 33 to move the vent valve of the disk 4 and therefore avoid excessive cold setting of this valve.
  • the subset 1 is made by Lost wax casting, which virtually eliminates machining from stainless steel with at least 16% chromium and at least 10% nickel, typically a 316L type stainless steel billet which after casting, represents a ferrite content greater than 2%, typically between 2 and 6%, which is obtained by adding chromium to the metal bath in fusion.

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

Claims (11)

  1. Vorrichtung zum Verschließen eines Behälters (3) für kryogenes Fluid und zu seinem Anschließen an Außenrohrleitungen, mit einer einstückigen Unterbaugruppe (1), die allgemein die Form einer Scheibe (4) aufweist und mindestens zwei Fluiddurchgangskanäle (8-11) definiert, dadurch gekennzeichnet, dass die einstückige Unterbaugruppe (1) aus gegossenem rostfreien Stahl hergestellt ist und einen Hauptteil aufweist, der eine eine Verbindungsebene (5) bildende Fläche besitzt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die gegossene Unterbaugruppe (1) mindestens drei Fluiddurchgangsleitungen (8-11) definiert.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Kanal (9, 10, 11) bezüglich des Hauptteils (4) seitlich mündet.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sich ein Kanal (8) orthogonal zum Hauptteil (4) erstreckt.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der sich orthogonal erstreckende Kanal (8) teilweise durch einen vorragenden röhrenförmigen Teil (7) gebildet wird.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einen Durchgangskanal (16) zur Montage einer Durchführung (17) eines Pegelmessers (18) umfasst.
  7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass die gegossene Unterbaugruppe (1) einen mittleren Füllkanal (8), einen Flüssigkeitsauslasskanal (9) und einen Gasauslasskanal (10) definiert.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Unterbaugruppe (1) durch Wachsausschmelzgießen eines rostfreien Austenitstahls hergestellt wird, der aus mindestens 16% Chrom und mindestens 10% Nickel besteht und in der Flüssigphase eine Ferritmenge von über 2%, vorzugsweise nicht über 6%, besitzt.
  9. Kryogener Behälter, der mit einer Vorrichtung nach einem der vorhergehenden Ansprüche ausgestattet ist.
  10. Behälter nach Anspruch 9, der mit einer Vorrichtung nach Anspruch 8 ausgestattet ist, dadurch gekennzeichnet, dass er zwei atmosphärische Erhitzer (23, 30) umfasst, die mit dem Flüssigkeitsauslasskanal (9) bzw. den Gasauslasskanal (10) verbunden sind.
  11. Behälter nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass er medizinischen Flüssigsauerstoff enthält.
EP01401173A 2001-05-07 2001-05-07 Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit Expired - Lifetime EP1258671B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60100174T DE60100174T2 (de) 2001-05-07 2001-05-07 Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit
EP01401173A EP1258671B1 (de) 2001-05-07 2001-05-07 Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit
AT01401173T ATE237098T1 (de) 2001-05-07 2001-05-07 Anschluss- und verschlussvorrichtung mit aussenrohrleitungen eines behälters für kryogenische flussigkeit
ES01401173T ES2195982T3 (es) 2001-05-07 2001-05-07 Dispositivo de obturacion y de conexion a canalizaciones externas de un deposito de fluido criogeno.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01401173A EP1258671B1 (de) 2001-05-07 2001-05-07 Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit

Publications (2)

Publication Number Publication Date
EP1258671A1 EP1258671A1 (de) 2002-11-20
EP1258671B1 true EP1258671B1 (de) 2003-04-09

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EP01401173A Expired - Lifetime EP1258671B1 (de) 2001-05-07 2001-05-07 Anschluss- und Verschlussvorrichtung mit Aussenrohrleitungen eines Behälters für kryogenische Flussigkeit

Country Status (4)

Country Link
EP (1) EP1258671B1 (de)
AT (1) ATE237098T1 (de)
DE (1) DE60100174T2 (de)
ES (1) ES2195982T3 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394929A (en) * 1981-04-10 1983-07-26 Union Carbide Corporation Cryogenic liquid storage container having an improved access conduit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956975A (en) * 1989-08-17 1990-09-18 Gustafson Keith W Shutoff valve for cryogenic liquid storage tank
US5607002A (en) * 1993-04-28 1997-03-04 Advanced Delivery & Chemical Systems, Inc. Chemical refill system for high purity chemicals
FR2735209B1 (fr) * 1995-06-08 1997-07-25 Air Liquide Ensemble robinet/detendeur pour bouteille de gaz et bouteille de gaz equipee d'un tel ensemble
JP3129658B2 (ja) * 1996-04-26 2001-01-31 本田技研工業株式会社 自動車の加圧燃料配管構造およびその配管漏れ検査方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394929A (en) * 1981-04-10 1983-07-26 Union Carbide Corporation Cryogenic liquid storage container having an improved access conduit

Also Published As

Publication number Publication date
ATE237098T1 (de) 2003-04-15
ES2195982T3 (es) 2003-12-16
DE60100174T2 (de) 2004-03-04
EP1258671A1 (de) 2002-11-20
DE60100174D1 (de) 2003-05-15

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