EP0015799B1 - Dispositif pour revaporiser des gaz liquéfiés et procédé pour fabriquer un tel dispositif - Google Patents

Dispositif pour revaporiser des gaz liquéfiés et procédé pour fabriquer un tel dispositif Download PDF

Info

Publication number
EP0015799B1
EP0015799B1 EP80400211A EP80400211A EP0015799B1 EP 0015799 B1 EP0015799 B1 EP 0015799B1 EP 80400211 A EP80400211 A EP 80400211A EP 80400211 A EP80400211 A EP 80400211A EP 0015799 B1 EP0015799 B1 EP 0015799B1
Authority
EP
European Patent Office
Prior art keywords
tube
ribs
collector
boring
tubes
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
Application number
EP80400211A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0015799A1 (fr
Inventor
Jean-François Martin
Drouineau
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.)
Ateliers et Chantiers de Bretagne ACB SA
Original Assignee
Ateliers et Chantiers de Bretagne ACB 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 Ateliers et Chantiers de Bretagne ACB SA filed Critical Ateliers et Chantiers de Bretagne ACB SA
Publication of EP0015799A1 publication Critical patent/EP0015799A1/fr
Application granted granted Critical
Publication of EP0015799B1 publication Critical patent/EP0015799B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/14—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally
    • F28F1/16—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending longitudinally the means being integral with the element, e.g. formed by extrusion
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • 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
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by 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
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • 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
    • F17C2223/033—Small pressure, e.g. for liquefied gas
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0316—Water heating
    • 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
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/039—Localisation of heat exchange separate on the pipes
    • 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
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • 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
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0397—Localisation of heat exchange characterised by fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49396—Condenser, evaporator or vaporizer making

Definitions

  • the present invention relates to a device for evaporating liquefied gases, such as methane, at low temperature.
  • the bundle tubes are welded to an inlet manifold, where the product is brought under pressure, at low temperature and in the liquid state, and an outlet manifold, where the vaporized product is at about the same pressure. than at the entrance, but at a temperature close to ambient.
  • the materials used to manufacture the vaporizing devices have been aluminum alloys containing as main alloying elements either 0.5% of mag - nesium and 0.5% of silicon, or approximately 5% of zinc and about 1% of the magnesium.
  • the present invention therefore provides a device for evaporating liquified gases, comprising a bundle of aluminum alloy tubes containing magnesium welded at one of their ends to a manifold which receives the liquefied gas, at low temperature and under high pressure, and, at the other end, to an outlet manifold which evacuates the evaporated gas, at a temperature close to ambient and at a pressure close to that of the inlet manifold, this device further comprising means for producing a runoff of water on the outside surface of the tubes.
  • the alloy used contains: magnesium 3.5 to 4.5%, manganese 0.2 to 0.7%, chromium 0.05 to 0.25%, and at most 0.4% silicon, 0.5% iron, 0.10% copper, 0.25% zinc and 0.15% titanium, the remainder being aluminum with the usual impurities, and each tube comprises, over practically its entire length , on the one hand, the internal fins and, on the other hand, two diametrically opposite external fins.
  • the section of a tube comprises a circular central body 1, provided with two diametrically opposite external fins 2, 3, each of them having a cross section which decreases as it moves away from the body, without canceling out at the end, and is connected to the body by a fillet.
  • the body has an interior passage 4, presenting eight interior fins 5.
  • each tube has a length of approximately 5 m, the external diameter of the body is 40 mm, the lengths of the external and internal fins being 20 and 6 mm respectively.
  • the particular shape of the tube required the development of a particular technique to weld these tubes on the manifolds.
  • tubes of much larger diameter than tubes, and of the same metal are thick-walled to resist the pressure and the weight of the spray tubes, and have a flat on their upper and lower sides, this flat being of width greater than the outside diameter of the body of the spray tubes.
  • Figure 2 shows in section a tube and a manifold.
  • the tubes are welded to the manifolds with their outer fins in the same plane, separated by an interval of the order of a millimeter so as to form a panel.
  • the interval between the tubes is chosen so as to allow for expansion, but without the risk of creating discontinuities due to the film of water flowing on the panel.
  • a heating water distributor is arranged around the outlet manifold; it consists of an open bottom channel, which lets out a suitable water flow on both sides of the panel.
  • the panel is extended beyond the last tube by a profile parallel to this tube, having at least one wing located in the extension of the outer fin of this tube which is directed towards the outside of the panel, this wing being separated from said fin by a distance similar to that which separates the fins from each other inside the panel, about 1 mm for example. This avoids a discontinuity in the runoff film at the edge of the last tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Treating Waste Gases (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP80400211A 1979-02-12 1980-02-12 Dispositif pour revaporiser des gaz liquéfiés et procédé pour fabriquer un tel dispositif Expired EP0015799B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7903432A FR2448684A1 (fr) 1979-02-12 1979-02-12 Dispositif pour revaporiser des gaz liquefies
FR7903432 1979-02-12

Publications (2)

Publication Number Publication Date
EP0015799A1 EP0015799A1 (fr) 1980-09-17
EP0015799B1 true EP0015799B1 (fr) 1982-10-27

Family

ID=9221833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400211A Expired EP0015799B1 (fr) 1979-02-12 1980-02-12 Dispositif pour revaporiser des gaz liquéfiés et procédé pour fabriquer un tel dispositif

Country Status (5)

Country Link
US (1) US4317269A (enrdf_load_stackoverflow)
EP (1) EP0015799B1 (enrdf_load_stackoverflow)
DE (1) DE3060984D1 (enrdf_load_stackoverflow)
FR (1) FR2448684A1 (enrdf_load_stackoverflow)
WO (1) WO1982003675A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783969A (en) * 1986-07-30 1988-11-15 Penox Technologies, Inc. Cryogenic withdrawal apparatus and method
US5390500A (en) * 1992-12-29 1995-02-21 Praxair Technology, Inc. Cryogenic fluid vaporizer system and process
US5344717A (en) * 1993-01-25 1994-09-06 Micro Motion, Incorporated Method of brazing and apparatus
FR2731018B1 (fr) * 1995-02-24 1997-04-04 Pechiney Rhenalu Tole pour construction soudee en alliage almgmn a resistance mecanique amelioree
FR2731019B1 (fr) * 1995-02-24 1997-08-22 Pechiney Rhenalu Produit pour construction soudee en alliage almgmn a resistance mecanique amelioree
DE10240640B3 (de) * 2002-09-03 2004-02-12 Trw Airbag Systems Gmbh & Co. Kg Verfahren zum Herstellung eines Gasgeneratorgehäuseteils, Gasgenerator mit diesem Gehäuseteil sowie Gassackmodul

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322341A (en) * 1940-01-27 1943-06-22 Morris F Booth Heat exchange unit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1322341A (en) * 1919-11-18 Universal joint
US2183043A (en) * 1937-05-25 1939-12-12 Babcock & Wilcox Co Pressure vessel
US2216033A (en) * 1938-06-01 1940-09-24 Kellogg M W Co Method of forming lined connectors
US2286271A (en) * 1940-03-07 1942-06-16 Universal Cooler Corp Heat transfer device
US2294030A (en) * 1940-03-09 1942-08-25 Universal Cooler Corp Heat exchange device
GB911847A (en) * 1960-04-06 1962-11-28 North Thames Gas Board Improvements relating to the vaporisation of liquefied methane
FR1415766A (fr) * 1964-09-17 1965-10-29 Tube à ailettes pour échangeurs de chaleur et sa fabrication
FR2270343B1 (enrdf_load_stackoverflow) * 1974-05-09 1978-01-27 Gedes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322341A (en) * 1940-01-27 1943-06-22 Morris F Booth Heat exchange unit

Also Published As

Publication number Publication date
US4317269A (en) 1982-03-02
WO1982003675A1 (en) 1982-10-28
EP0015799A1 (fr) 1980-09-17
DE3060984D1 (en) 1982-12-02
FR2448684B1 (enrdf_load_stackoverflow) 1982-05-07
FR2448684A1 (fr) 1980-09-05

Similar Documents

Publication Publication Date Title
EP0015799B1 (fr) Dispositif pour revaporiser des gaz liquéfiés et procédé pour fabriquer un tel dispositif
EP3667217B1 (fr) Appareil de séparation ou de liquéfaction d'un gaz opérant à des températures cryogéniques
EP0167418B1 (fr) Tube à double paroi pour un échangeur de chaleur et procédé de réalisation de ce tube
FR2742368A1 (fr) Procede de raccordement par soudage heterogene bout a bout de deux pieces de natures differentes et utilisations
EP1931929A1 (fr) Procede de vaporisation et/ou de condensation dans un echangeur de chaleur
FR2574175A1 (fr) Echangeur de chaleur en aluminium
FR2496860A1 (fr) Procede de fabrication d'un echangeur de chaleur comportant au moins un tube aplati cintre
FR2558926A1 (fr) Procede de fixation d'une structure de tube a double paroi et revetement interieur de titane a une plaque tubulaire en titane
EP1743116B1 (fr) Complexe isolant a enveloppe metallique pour conduite
EP0312421B1 (fr) Procédé de fixation par soudage d'une tubulure sur un élément de paroi de forte épaisseur telle qu'une virole porte-tubulures d'une cuve de réacteur nucléaire
GB2262149A (en) Corrosion resistant pipe
EP0133384A1 (fr) Procédé de fabrication d'une virole, notamment pour récipient de stockage de fluide cryogénique, et virole ainsi obtenue
WO2017216450A1 (fr) Chambre de combustion de moteur fusee avec ailettes a composition variable
FR2918910A1 (fr) Procede de fabrication d'un element de genie chimique
FR2832788A1 (fr) Profils de tubes pour echangeur thermique
EP3948140A1 (en) A multi-material device for heat transfer and a method of manufacture
BE1006617A3 (fr) Tubes a ailettes et procede pour leur fabrication.
WO2021233986A1 (fr) Dôme liquide d'une cuve de stockage pour gaz liquéfié
FR2553825A1 (fr) Procede pour reduire l'usure des pots d'echappement de vehicules automobiles et pots d'echappement perfectionnes ainsi realises
FR2727188A1 (fr) Element tubulaire soude pour un conduit de gaz chaud, et son procede de realisation
JPS6299452A (ja) 管内面線曝着溶射方法
EP0216667B1 (fr) Dispositif de retenue de liquide dans une canalisation sensiblement horizontale présentant une extrémité ouverte lorsque, le débit du liquide descend en-dessous d'un seuil donné
WO2024240435A1 (fr) Réservoir cryogénique et procédé de fabrication
BE372884A (enrdf_load_stackoverflow)
WO2020254402A1 (fr) Évaporateur d'un fluide de travail pour une centrale etm comportant une coiffe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE GB IT NL

17P Request for examination filed

Effective date: 19801029

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE GB IT NL

REF Corresponds to:

Ref document number: 3060984

Country of ref document: DE

Date of ref document: 19821202

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19821227

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19830225

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19830331

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19840229

BERE Be: lapsed

Owner name: ATELIERS ET CHANTIERS DE BRETAGNE ACB S.A.

Effective date: 19840212

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19840901

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19841101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT