EP0992732A2 - Préparation de mélanges de gaz en grandes quantités - Google Patents

Préparation de mélanges de gaz en grandes quantités Download PDF

Info

Publication number
EP0992732A2
EP0992732A2 EP99116523A EP99116523A EP0992732A2 EP 0992732 A2 EP0992732 A2 EP 0992732A2 EP 99116523 A EP99116523 A EP 99116523A EP 99116523 A EP99116523 A EP 99116523A EP 0992732 A2 EP0992732 A2 EP 0992732A2
Authority
EP
European Patent Office
Prior art keywords
gas
pressure
pressurized
pressurized gas
trailer
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Withdrawn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
EP99116523A
Other languages
German (de)
English (en)
Other versions
EP0992732A3 (fr
Inventor
Georg Schroeder
Heinz Ritterbach
Werner Schleser
Renate Schmidt
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 Deutschland GmbH
Original Assignee
Messer Griesheim GmbH
Air Liquide Deutschland GmbH
Messer Group GmbH
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 Messer Griesheim GmbH, Air Liquide Deutschland GmbH, Messer Group GmbH filed Critical Messer Griesheim GmbH
Publication of EP0992732A2 publication Critical patent/EP0992732A2/fr
Publication of EP0992732A3 publication Critical patent/EP0992732A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/10—Mixing gases with gases
    • B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • B01F35/833—Flow control by valves, e.g. opening intermittently
    • 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
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • 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
    • F17C2201/054—Size medium (>1 m3)
    • 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids

Definitions

  • the invention relates to a method for producing gas mixtures in large amounts.
  • Gas mixtures for large consumers have so far been provided in individual compressed gas cylinders (e.g. 50 liter compressed gas cylinders) or cylinder bundles. If a quantity of more than 1000 m 3 of gas mixture is required, the use of these containers is not advisable.
  • the invention has for its object a method for manufacturing to create gas mixtures in large quantities, especially one Process for the provision of gas mixtures on site at the Consumer.
  • Another object of the invention is a compressed gas cylinder wagon with the features of claim 7.
  • Pressurized gas cylinder wagons such as battery vehicles or trailers, are vehicles (for road or rail transport) with one or a larger number (e.g. 18 or 49) of interconnected pressurized gas containers.
  • Pressurized gas containers are e.g. B. tubes or large bottles.
  • the compressed gas tanks have z. B. gas capacity of 1000 to 4000 m 3 at 200 bar. If there is more than one compressed gas container on the vehicle, the compressed gas containers are connected to one another, the compressed gas containers preferably being lockable individually.
  • Pressurized gas cylinder wagons or pressurized gas container vehicles so Vehicles with one or more pressurized gas containers are in the called the following trailer.
  • gas sources provided.
  • gas sources such. B. compressed gas cylinders, Compressed gas cylinder bundles, gas storage tanks, containers or tanks with refrigerated gases or gas supply systems (with tank, Evaporator and compressor).
  • Gas sources can also be devices for gas generation like electrolysis cells for the generation of Chlorine gas or chemical reactors.
  • gas components with low Vapor pressure is recommended when using compressed gases in Pressurized gas cylinders have a bottle heater to make the trailer quick to be able to fill.
  • the gas mixtures are preferably produced according to manometric process in which the individual gas components according to the proportion in the finished gas mixture via your Partial pressures can be filled in the compressed gas tank.
  • the production the gas mixtures are made by manual or automatic filling the trailer's compressed gas tank.
  • the direct production of the Gas mixtures are primarily suitable for gases without additional Tools or measures lead to homogeneous gas mixtures.
  • suitable gases are e.g. B. nitrogen, oxygen, argon.
  • gases with non-ideal behavior e.g. B. carbon dioxide or hydrocarbons, in which the manufacture homogeneous gas mixtures is problematic, recommended by special measures or facilities for the formation more homogeneous To worry about gas mixtures.
  • the dynamic mixing takes place, for example, with a mixing system, in which the gas components z. B. by pinhole or Mass flow meters are metered into a mixing section.
  • a Mixing section can also be implemented, for example, by internals, fillers, Sieve plates in a gas pipe (e.g. with a pipe length of 2 to 5 meters) will be realized.
  • the mixing of the gases can, for example, in the Low pressure area or medium pressure area take place, whereby then compresses the gas mixture and into the Compressed gas tank of the trailer is introduced.
  • the homogenization the gas mixture can also be made in the pressurized gas containers be when z. B. for a turbulent flow during gas filling is taken care of.
  • the manometric method works particularly advantageously with a temperature-compensated pressure detection on the trailer, at least one, preferably all pressurized gas containers with at least one Temperature sensor (e.g. Pt-100) and at least one pressure sensor (e.g. B. Piezo pressure transducer).
  • the pressure sensor should at the furthest from the outflow point (gas sampling point) remote location in the compressed gas container (e.g. tube) to avoid measurement errors caused, for example, by a dynamic pressure when filling or a discharge pressure when emptying can be caused.
  • a temperature sensor should be near the Pressure sensor may be arranged.
  • the following variables and constants are included in the calculation of the current gas filling quantity of the trailer, which are fed to an electronic computing unit (e.g. entered manually or in a program): the total volume V TL (volume; m 3 ) of the compressed gas container of the trailer, the absolute pressure P T in the compressed gas tank of the trailer, the temperature T T in the compressed gas tank of the trailer, the calculated gas volume V TG of the gas or gas mixture in the compressed gas tank of the trailer, the calculated removal volume V AB of the gas or gas mixture in the compressed gas tank of the trailer, calculated total filling volume V IN a gas component or a gas mixture, the molar mass M of a gas component, the density ⁇ of the gas mixture, the general gas constant R and a real gas factor f (p, T) with pressure p and temperature T.
  • the electronic computing unit is preferably part of a Control unit for gas metering (filling) and gas delivery.
  • the Control unit enables automation of gas dosing and the gas delivery on the trailer.
  • A is preferably used as the control unit MSR unit, especially a single-chip board with EPROM. For example, the desired (to be recorded gas quantity to be dispensed).
  • a processor determines the Pressure in the compressed gas tank and compares the value (actual value) with the preset (entered) gas volume (setpoint). At a The sampling valve (e.g. pneumatic valve) is used for gas sampling on Trailer closed when the setpoint is reached. After completing the Gas extraction process, the user (operator) can both amount of gas delivered as well as the amount of residual gas on a display read from the trailer.
  • the trailer is z. B. with a nitrogen tube and an empty or evacuated tube equipped.
  • the nitrogen tube is a pressurized gas container filled with nitrogen. This can be used for flushing damaged pipes or as Back pressure medium can be used. In addition, at Use the residual pressure valve as nitrogen Pneumatic control air from the MCR technology can be used. Furthermore, the nitrogen is used to purge the plant components used can be used after fumigation.
  • the empty or evacuated tube can be half of the damage Absorb the amount of gas from a defective tube and thus help to repair the damage limit.
  • the trailer is usually equipped with individually lockable tubes.
  • the valve position of the shut-off valve on the trailer is preferred clearly recognizable by an opening indicator at a distance.
  • valve 21 After valve 21 is closed, the gas is released via valves 22 and 23 drained, that is, it is flushed with gas from gas source 1.
  • the pressure gas containers (tubes) 9 are relieved and evacuated, 10 and 11 by opening valves 13, 14, 15, 17, 16, 18, 22 and 23 (Relief to atmospheric pressure), closing of valve 23, opening of the valve 24 and evacuation of the tubes with the help of the vacuum pump 28 and closing the valves 22 and 24.
  • the desired gas dosing pressure With the help of the valve 25, 33 or 50 the desired gas dosing pressure is set.
  • the pressure can be read from 38 to 10 bar on the manometer. With a print ⁇ of more than 10 bar, the valve 4 closes automatically, so that the Pressure transducer 38 can not be destroyed.
  • a dosing pressure with more than 10 bar is set using a pressure gauge 39.
  • the valves 25 and 16 closed and the system relieved via valves 23 and 22.
  • One or more further gas components can be analogous to the metering of the first Gas component (via valve 25) metered via valves 33 or 50 become.
  • the main component of the gas mixture metered in from gas source 1 via valve 20. All gas doses take place under manometric control, whereby the pressure detection by means of pressure gauges 38 and 39.
  • the pressure detection by the Manometer 38 and 39 has the disadvantage that the exact Pressure sensing the metering valves 25, 33, 50 and 20 (at the gas sources 3, 42, 43 and 1) must be closed.
  • the influence of temperature by the gas compressed in the containers 9, 10 and 11 disregarded.
  • gas metering with pressure gauge 38 and 39 the gas metering is advantageously carried out with the temperature-compensated Pressure detection by means of pressure / temperature sensor 7 on the Pressurized gas containers 9, 10 and 11 of the trailer. This allows the Dosing pressures during gas dosing, that is during the Filling process, record exactly.
  • the gas pressures in the containers 9, 10 and 11 are advantageous on a display in the filling level of the trailer read.
  • the automated gas mixture production with automatic Gas metering on the trailer is shown in Fig. 2.
  • the tubes 9, 10, 11 are each with a device 7 for temperature-compensated Pressure detection equipped.
  • the devices 7 communicate with the control unit 12 on the trailer.
  • the control unit 12 acts on the controllable valve 17, which is usually a pneumatic valve.
  • the Control unit 12 is connected to control unit 34 at the fill level.
  • the control unit 34 acts on the valves 32, 18, 51, 35, 37, 36, 52 and 53.
  • the control units 12 and 34 can also be in a control unit e.g. B. on the trailer.
  • the production of the In principle, the gas mixture is the same as for the manual process of Fig. 1.
  • the process steps are as control steps in the Control unit stored, preferably in an EPROM as Memory block in the control circuit of the control unit.
  • the bottler gives the filling quantity or the filling pressure of the individual gas components of the gas mixture to be produced in the control unit, for.
  • the control units 12 and 34 control flushing of the Systems, evacuation and filling of the trailer's compressed gas tanks.
  • FIG. 3 shows a side view of a trailer 8 (top in FIG. 3) and a rear view of the trailer (bottom in FIG. 3).
  • the compressed gas tanks are attached to the trailer as long tubes.
  • the rear view shows the tubes for the useful gas, here are 47 tubes, which are identified as 9, and a tube 40 for the inert gas (e.g. nitrogen) and an empty or vacuum tube 41.
  • the manual valves 16 are below the tubes (for gas mixture, useful gas), 44 (for inert gas) and 45 (for empty or vacuum tube 41) and the control and display unit 12. The shut-off valves for each individual tube are not shown.
  • Reference list 1 Main component gas source 28 Vacuum pump 2nd Helium gas source 29 Adsorber 3rd Gas source for secondary component 30th Exhaust gas 4th Control valve to protect the pressure indicator 38 31 Pressure display of useful gas 5 Shut-off valve 32 controlled dosing valve for main component 6 Shut-off valve 33 Dosing valve for 2nd secondary component (hand) 7 Pressure, temperature detection 34 Control unit at the fill level 8th Trailer 35 Control valve disposal / evacuation 9 Pressurized gas container (tube) for useful gas 36 Control valve on vacuum pump 10th Pressurized gas container (tube) for useful gas 37 Control valve for outflow 11 Pressurized gas container (tube) for useful gas 38 Pressure sensor 0-10 bar 12th Control unit on the trailer 39 Pressure sensor 0-200 bar or 0-300 bar 13 Manual shut-off valve 40 Pressurized gas container for inert gas 14 Manual shut-off valve 41 Security container 15 Manual shut-off valve 42 Gas source for secondary component 2 16 Manual shut-off valve 43 Gas source for secondary component 3 17th Main shut-off valve, controlled (useful gas, trailer) 44 Main shut

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP99116523A 1998-10-08 1999-08-24 Préparation de mélanges de gaz en grandes quantités Withdrawn EP0992732A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19846288A DE19846288A1 (de) 1998-10-08 1998-10-08 Herstellung von Gasgemischen in großen Mengen
DE19846288 1998-10-08

Publications (2)

Publication Number Publication Date
EP0992732A2 true EP0992732A2 (fr) 2000-04-12
EP0992732A3 EP0992732A3 (fr) 2006-05-03

Family

ID=7883757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99116523A Withdrawn EP0992732A3 (fr) 1998-10-08 1999-08-24 Préparation de mélanges de gaz en grandes quantités

Country Status (2)

Country Link
EP (1) EP0992732A3 (fr)
DE (1) DE19846288A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043540A2 (fr) * 1999-04-08 2000-10-11 Messer Griesheim Gmbh Dispositif de remplissage pour la fabrication de mélanges de gaz précis
DE102007029020A1 (de) * 2007-06-23 2008-12-24 Dürr Somac GmbH Anlage zur Vakuumdruckbefüllung von Baugruppen mit gasförmigen oder flüssigen Medien
CN113083046A (zh) * 2021-03-09 2021-07-09 广东电网有限责任公司电力科学研究院 一种混合气体制备装置和充气方法
CN113769594A (zh) * 2021-09-06 2021-12-10 苏州晟宇气体设备有限公司 标准气体多元混合系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015511B3 (de) * 2009-04-02 2010-12-09 Tauchtechnik Schmitt Gmbh Vorrichtung zum Befüllen einer Tauchflasche und ein Verfahren zum Betreiben dieser

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122817A (en) * 1964-12-23 1968-08-07 Siderurgie Fse Inst Rech Method and apparatus for mixing gases in proportion
US3948281A (en) * 1973-02-22 1976-04-06 Scott Environmental Technology, Inc. Gas blending using null balance analyzer
US4219038A (en) * 1975-11-27 1980-08-26 Dragerwerk Aktiengesellschaft Gas mixing device for breath-protecting, diving, medical and laboratory techniques
US4860803A (en) * 1988-09-15 1989-08-29 The United States Of America As Represented By The Department Of Commerce Continuous nitrox mixer
EP0556753A1 (fr) * 1992-02-20 1993-08-25 Messer Griesheim Gmbh Procédé pour la préparation d'un mélange de gaz
US5385263A (en) * 1994-05-02 1995-01-31 Aerojet-General Corporation Compressed gas mobile storage module and lightweight composite cylinders
WO1998014362A1 (fr) * 1996-10-01 1998-04-09 Enron Lng Development Corp. Systeme de transport de gaz par bateau
DE19704868C1 (de) * 1997-02-10 1998-08-20 Messer Griesheim Gmbh Manometrisches Füllverfahren
US5803005A (en) * 1995-10-30 1998-09-08 Enron Lng Development Corp. Ship based system for compressed natural gas transport

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122817A (en) * 1964-12-23 1968-08-07 Siderurgie Fse Inst Rech Method and apparatus for mixing gases in proportion
US3948281A (en) * 1973-02-22 1976-04-06 Scott Environmental Technology, Inc. Gas blending using null balance analyzer
US4219038A (en) * 1975-11-27 1980-08-26 Dragerwerk Aktiengesellschaft Gas mixing device for breath-protecting, diving, medical and laboratory techniques
US4860803A (en) * 1988-09-15 1989-08-29 The United States Of America As Represented By The Department Of Commerce Continuous nitrox mixer
EP0556753A1 (fr) * 1992-02-20 1993-08-25 Messer Griesheim Gmbh Procédé pour la préparation d'un mélange de gaz
US5385263A (en) * 1994-05-02 1995-01-31 Aerojet-General Corporation Compressed gas mobile storage module and lightweight composite cylinders
US5803005A (en) * 1995-10-30 1998-09-08 Enron Lng Development Corp. Ship based system for compressed natural gas transport
WO1998014362A1 (fr) * 1996-10-01 1998-04-09 Enron Lng Development Corp. Systeme de transport de gaz par bateau
DE19704868C1 (de) * 1997-02-10 1998-08-20 Messer Griesheim Gmbh Manometrisches Füllverfahren

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1043540A2 (fr) * 1999-04-08 2000-10-11 Messer Griesheim Gmbh Dispositif de remplissage pour la fabrication de mélanges de gaz précis
EP1043540A3 (fr) * 1999-04-08 2001-01-31 Messer Griesheim Gmbh Dispositif de remplissage pour la fabrication de mélanges de gaz précis
DE19915779B4 (de) * 1999-04-08 2007-10-31 Air Liquide Deutschland Gmbh Abfüllstand zur Herstellung von Präzisionsgasgemischen
DE102007029020A1 (de) * 2007-06-23 2008-12-24 Dürr Somac GmbH Anlage zur Vakuumdruckbefüllung von Baugruppen mit gasförmigen oder flüssigen Medien
CN113083046A (zh) * 2021-03-09 2021-07-09 广东电网有限责任公司电力科学研究院 一种混合气体制备装置和充气方法
CN113083046B (zh) * 2021-03-09 2022-07-22 广东电网有限责任公司电力科学研究院 一种混合气体制备装置和充气方法
CN113769594A (zh) * 2021-09-06 2021-12-10 苏州晟宇气体设备有限公司 标准气体多元混合系统

Also Published As

Publication number Publication date
EP0992732A3 (fr) 2006-05-03
DE19846288A1 (de) 2000-04-20

Similar Documents

Publication Publication Date Title
DE69934923T3 (de) Verfahren zum Befüllen von Flaschen mit kryogenem Fluid
EP0224692B1 (fr) Appareil pour le prélèvement d'échantillons sans émission de liquides facilement évaporables
DE19605440A1 (de) Verfahren und Vorrichtung zur automatischen Abfüllung von Füllgut
DE112005002795T5 (de) Kältemittelbefüllsystem und ein in der Dampfphase vorliegendes Kältemittel verwendendes Verfahren
WO2007033884A1 (fr) Procede et dispositif de detection de fuites dans un systeme d'amortissement pneumatique d'un vehicule
DE102012008274A1 (de) Gasbeaufschlagungs-Vorrichtung für Gasmessgeräte, Verfahren zum Prüfen von Gas-Messgeräten sowie Kalibrierungsmessgerät zum Prüfen und Kalibrieren von Gasmessgeräten
DE102018121267A1 (de) Verfahren zum Betrieb eines Kraftfahrzeugs sowie Kraftfahrzeug
DE19915779A1 (de) Abfüllstand zur Herstellung von Präzisionsgasgemischen
EP0992732A2 (fr) Préparation de mélanges de gaz en grandes quantités
DE10254120B3 (de) Verfahren zur Dichtheitsprüfung von Klimaanlagen in Kraftfahrzeugen
EP3752764A1 (fr) Dispositif de remplissage de réservoirs de gaz
DE19546659A1 (de) Betankungseinrichtung für Flüssig Methan und Flüssig Erdgas (LNG)
DE19744559C2 (de) Meßgasbehälter
DE102006002271A1 (de) Anlage zur Gaseversorgung
EP0992733A2 (fr) Préparation de mélanges de gaz avec des réservoirs transportables pour gaz sous pression
DE4432473A1 (de) Verfahren und Vorrichtung zur Dichtheitsprüfung von Rohrleitungen, insbesondere von Abwasserleitungen
WO2023051945A1 (fr) Procédé et système d'étalonnage de mesure de débit
DE4224950C2 (de) Rückführung von Gasen in Betankungsanlagen
DE3342440C2 (fr)
DE10225291B4 (de) Verfahren zur Bestimmung der Dichtheit eines Gasdruckbehältersystems, sowie Vorrichtung hierfür
EP4286739A1 (fr) Remorque destinée au transport de gaz et procédé de fonctionnement correspondant
DE4403770C2 (de) Verfahren zur Erfassung der elastisch-plastischen Dehnung bei der Druckprobe von Behältern
DE602004000719T2 (de) Vorrichtung und Verfahren zur Kraftstoffdampf-Rückgewinnung
WO1993017955A1 (fr) Traitement des vapeurs d'essence dans les stations-service
EP3977066A1 (fr) Dispositif et procédé permettant d'acquérir une information sur le niveau de remplissage d'un récipient de stockage de fluide

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

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GRIESHEIM GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GROUP GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GROUP GMBH

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MESSER GROUP GMBH

Owner name: AIR LIQUIDE DEUTSCHLAND GMBH

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20061104

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566