WO2008110240A1 - Method for filling a hydrogen storage container - Google Patents

Method for filling a hydrogen storage container Download PDF

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Publication number
WO2008110240A1
WO2008110240A1 PCT/EP2008/001060 EP2008001060W WO2008110240A1 WO 2008110240 A1 WO2008110240 A1 WO 2008110240A1 EP 2008001060 W EP2008001060 W EP 2008001060W WO 2008110240 A1 WO2008110240 A1 WO 2008110240A1
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WO
WIPO (PCT)
Prior art keywords
filling
storage container
pressure
internal pressure
gaseous
Prior art date
Application number
PCT/EP2008/001060
Other languages
German (de)
French (fr)
Inventor
Robert Adler
Helmut Mayer
Markus Mayer
Georg Siebert
Martin Stehrlein
Original Assignee
Linde Aktiengesellschaft
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 Linde Aktiengesellschaft filed Critical Linde Aktiengesellschaft
Priority to JP2009553029A priority Critical patent/JP2010520977A/en
Priority to US12/526,197 priority patent/US20100175778A1/en
Priority to EP08707680A priority patent/EP2118556A1/en
Publication of WO2008110240A1 publication Critical patent/WO2008110240A1/en

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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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/002—Automated filling apparatus
    • F17C5/007—Automated filling apparatus for individual gas tanks or containers, e.g. in vehicles
    • 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
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • 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
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • 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
    • F17C2250/0626—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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/02—Improving properties related to fluid or fluid transfer
    • F17C2260/023—Avoiding overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0134—Applications for fluid transport or storage placed above the ground
    • F17C2270/0139—Fuel stations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • the invention relates to a method for filling a storage container with a gaseous, pressurized medium, preferably with gaseous, pressurized hydrogen.
  • Generic methods for filling a storage container are used, for example, in the filling of vehicle storage tanks or tanks with pressurized hydrogen for use.
  • vehicle tanks can be filled up to pressures of 700 bar at 15 0 C.
  • the hydrogen filling station communicates with the vehicle to be refueled either via a communication cable, which is usually integrated in the filling coupling, or via an infrared interface.
  • a special flow-controlled control valve is controlled by means of a PLC evaluation to refuel different vehicle tank sizes independently.
  • the aforementioned flow-controlled control valve has the task to keep the flow within a predetermined range and to prevent the exceeding of a flow upper limit.
  • the controller not only serves to correct the current mass flow, but also causes a refueling stop if the flow is too low or too high.
  • the hydrogen flow is limited to a maximum of 100 g / s by means of a fixed throttle.
  • vehicle tank sizes meaning storage volumes with a capacity of less than 75 liters - it may, however, due to the negative Joule-Thompson effect and due to the adiabatic compression of the hydrogen to overheat the to be filled Vehicle tanks are coming. The filling of such vehicle tanks is therefore not possible with conventional refueling systems for gaseous, pressurized hydrogen.
  • a generic method for filling a storage container with a gaseous, pressurized medium, preferably proposed with hydrogen which is characterized in that at the beginning of the filling process by means of a Drucktestcertaines a determination of the storage container internal pressure and then in response to the determined Storage tank internal pressure filling with timed pressure increase up to the desired storage tank internal pressure.
  • a determination of the storage container internal pressure now takes place at or before the start of the actual filling process.
  • a so-called pressure test impact is realized, which firstly checks the tightness of the mechanical connection between the clutch and the vehicle and allows a clear determination of the reservoir pressure inside.
  • a filling process with time-controlled increase in pressure up to the desired storage container internal pressure is then realized.
  • the final pressure is calculated as a function of the parameters storage tank temperature, gas temperature, compressibility and Joule-Thompson effect.
  • the refueling or filling process is terminated when this calculated final pressure or the maximum operating pressure allowed for the maximum operating pressure of the tank to be refueled is reached.
  • the inventive method for filling a storage container with a gaseous, pressurized medium, preferably with hydrogen effectively avoids overfilling and / or overheating of the storage container to be filled, regardless of its storage volume.
  • the inventive method for filling a storage container also has the advantage that due to the realized, controlled pressure increase of the storage container to be filled more mass to be stored medium, since the temperature increase due to the inventive method is more controllable and equal for each storage tank size. Furthermore, the previously required complicated control technology as well as the aforementioned components, such as infrared interface, etc., can be dispensed with.
  • Storage container with a gaseous, pressurized medium can be seen in the fact that the filling or refueling process is less expensive, since, for example, the previously required connecting a vehicle to be refueled with the gas station "connecting" communication cable deleted; This is particularly advantageous if the filling procedure is performed by non-specialist personnel.
  • the disadvantages associated with the previously used infrared interfaces, such as abortion due to an accident, can now be avoided.
  • inventive method for filling a storage container with a gaseous, pressurized medium is not limited to the filling of a storage container with gaseous, pressurized hydrogen. Rather, the method according to the invention can be used in all media in which a controlled increase in pressure is desired or required during the filling process.

Landscapes

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

Abstract

A method is described for filling a storage container with a gaseous medium under pressure, preferably with gaseous hydrogen under pressure. According to the invention, at the beginning of the filling process, the internal pressure of the storage container is determined by means of a test blow, followed by a filling process with a time-controlled increase in pressure, dependent upon the internal pressure of the storage container that was detected, up to the desired internal pressure of the storage container.

Description

Beschreibung description
Verfahren zum Befüllen eines Wasserstoff-SpeicherbehältersMethod for filling a hydrogen storage tank
Die Erfindung betrifft ein Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium, vorzugsweise mit gasförmigem, unter Druck stehenden Wasserstoff.The invention relates to a method for filling a storage container with a gaseous, pressurized medium, preferably with gaseous, pressurized hydrogen.
Gattungsgemäße Verfahren zum Befüllen eines Speicherbehälters kommen beispielsweise bei der Befüllung von Fahrzeug-Speicherbehältern bzw. -tanks mit unter Druck stehendem Wasserstoff zur Anwendung. Mittels derartiger Befüllprozesse können Fahrzeugtanks bis zu Drücken von 700 bar bei 15 0C befüllt werden.Generic methods for filling a storage container are used, for example, in the filling of vehicle storage tanks or tanks with pressurized hydrogen for use. By means of such filling processes vehicle tanks can be filled up to pressures of 700 bar at 15 0 C.
Hierbei wird gefordert, dass der Befüllvorgang für unterschiedlichste Fahrzeugtankgrößen ohne ein Überfüllen und/oder Überhitzen des Fahrzeugtanks realisiert werden kann. Derzeit kommuniziert die Wasserstoff-Tankstelle mit dem zu betankenden Fahrzeug entweder über ein Kommunikationskabel, das im Regelfall in der Befüllkupplung integriert ist, oder über eine Infrarotschnittstelle.In this case, it is required that the filling process for a wide variety of vehicle tank sizes can be realized without overfilling and / or overheating of the vehicle tank. Currently, the hydrogen filling station communicates with the vehicle to be refueled either via a communication cable, which is usually integrated in the filling coupling, or via an infrared interface.
Aufgrund der von dem zu betankenden Fahrzeugtank erhaltenen Informationen, wie Druck, Temperatur, etc., wird ein spezielles durchflussgesteuertes Regelventil mittels einer SPS-Auswertung angesteuert, um unterschiedliche Fahrzeugtankgrößen unabhängig betanken zu können. Das vorgenannte durchflussgesteuerte Regelventil hat die Aufgabe, den Durchfluss innerhalb eines vorbestimmten Bereiches zu halten und das Überschreiten einer Durchfluss-Obergrenze zu verhindern. Die Steuerung dient bzw. bestimmt nicht nur die Korrektur des aktuellen Massendurchflusses, sondern veranlasst darüber hinaus einen Betankungsabbruch, wenn der Durchfluss zu gering oder zu groß ist.Due to the information obtained from the fuel tank to be refueled, such as pressure, temperature, etc., a special flow-controlled control valve is controlled by means of a PLC evaluation to refuel different vehicle tank sizes independently. The aforementioned flow-controlled control valve has the task to keep the flow within a predetermined range and to prevent the exceeding of a flow upper limit. The controller not only serves to correct the current mass flow, but also causes a refueling stop if the flow is too low or too high.
Bei derzeit realisierten Tankstellen für gasförmigen, unter Druck stehenden Wasserstoff wird mittels einer fest eingestellten Drossel der Wasserstoff-Durchfluss auf maximal 100 g/s begrenzt. Bei vergleichsweise kleinen Fahrzeugtankgrößen - gemeint sind hierbei Speichervolumina mit einem Fassungsvermögen von weniger als 75 Liter - kann es jedoch aufgrund des negativen Joule-Thompson-Effekts und aufgrund der adiabatische Kompression des Wasserstoffes zu einer Überhitzung des zu befüllenden Fahrzeugstanks kommen. Die Befüllung derartiger Fahrzeugtanks ist daher mit herkömmlichen Betankungsanlagen für gasförmigen, unter Druck stehenden Wasserstoff nicht möglich.At currently implemented filling stations for gaseous, pressurized hydrogen, the hydrogen flow is limited to a maximum of 100 g / s by means of a fixed throttle. With comparatively small vehicle tank sizes - meaning storage volumes with a capacity of less than 75 liters - it may, however, due to the negative Joule-Thompson effect and due to the adiabatic compression of the hydrogen to overheat the to be filled Vehicle tanks are coming. The filling of such vehicle tanks is therefore not possible with conventional refueling systems for gaseous, pressurized hydrogen.
Da jedoch die Unabhängigkeit des Fahrzeugtankdesigns und damit auch der Fahrzeugtankgröße von der Automobilindustrie gefordert wird, stellt sich dem Fachmann die Aufgabe, ein gattungsgemäßes Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium, vorzugsweise mit Wasserstoff anzugeben, das die vorgenannten Nachteile vermeidet und ein Befüllen unterschiedlichster Fahrzeugtankgrößen ermöglicht, ohne dass es zu einem Überfüllen und/oder Überhitzen des Fahrzeugtanks kommt.However, since the independence of the vehicle tank design and thus the vehicle tank size is required by the automotive industry, the skilled artisan task of specifying a generic method for filling a storage container with a gaseous, pressurized medium, preferably with hydrogen, which avoids the aforementioned disadvantages and filling a wide variety of vehicle tank sizes possible, without causing overfilling and / or overheating of the vehicle tank.
Zur Lösung dieser Aufgabe wird ein gattungsgemäßes Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium, vorzugsweise mit Wasserstoff vorgeschlagen, das dadurch gekennzeichnet ist, dass zu Beginn des Befüllvorganges mittels eines Druckteststoßes eine Bestimmung des Speicherbehälterinnendrucks und anschließend in Abhängigkeit von dem ermittelten Speicherbehälterinnendruck ein Befüllvorgang mit zeitgesteuertem Druckanstieg bis zu dem gewünschten Speicherbehälterinnendruck erfolgt.To solve this problem, a generic method for filling a storage container with a gaseous, pressurized medium, preferably proposed with hydrogen, which is characterized in that at the beginning of the filling process by means of a Druckteststoßes a determination of the storage container internal pressure and then in response to the determined Storage tank internal pressure filling with timed pressure increase up to the desired storage tank internal pressure.
Erfindungsgemäß erfolgt nunmehr zu bzw. vor Beginn des eigentlichen Befüllvorganges eine Bestimmung des Speicherbehälterinnendrucks. Dazu wird nach dem Fixieren der Betankungskupplung an dem zu betankenden Fahrzeug ein sog. Druckteststoß realisiert, der zum einen die Dichtheit der hergestellten mechanischen Verbindung zwischen Kupplung und Fahrzeug überprüft und zum anderen eine eindeutige Bestimmung des Speicherbehälterinnendrucks ermöglicht.According to the invention, a determination of the storage container internal pressure now takes place at or before the start of the actual filling process. For this purpose, after fixing the refueling coupling to the vehicle to be refueled, a so-called pressure test impact is realized, which firstly checks the tightness of the mechanical connection between the clutch and the vehicle and allows a clear determination of the reservoir pressure inside.
In Abhängigkeit von dem so ermittelten Speicherbehälterinnendruck wird dann ein Befüllvorgang mit zeitgesteuertem Druckanstieg bis zu dem gewünschten Speicherbehälterinnendruck realisiert. Dazu wird nach der Ermittelung des Startdrucks der Enddruck in Abhängigkeit von den Parametern Speicherbehältertemperatur, Gastemperatur, Kompressibilität und Joule-Thompson-Effekt errechnet. Der Betankung- bzw. Befüllvorgang ist dann beendet, wenn dieser errechnete Enddruck oder der für die maximale Betriebstemperatur zulässige maximale Betriebsdruck des zu betankenden Speicherbehälters erreicht ist. Das erfindungsgemäße Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium, vorzugsweise mit Wasserstoff, vermeidet wirkungsvoll ein Überfüllen und/oder Überhitzen des zu befüllenden Speicherbehälters, unabhängig von dessen Speichervolumen.Depending on the storage container internal pressure thus determined, a filling process with time-controlled increase in pressure up to the desired storage container internal pressure is then realized. For this purpose, after the determination of the starting pressure, the final pressure is calculated as a function of the parameters storage tank temperature, gas temperature, compressibility and Joule-Thompson effect. The refueling or filling process is terminated when this calculated final pressure or the maximum operating pressure allowed for the maximum operating pressure of the tank to be refueled is reached. The inventive method for filling a storage container with a gaseous, pressurized medium, preferably with hydrogen, effectively avoids overfilling and / or overheating of the storage container to be filled, regardless of its storage volume.
Das erfindungsgemäße Verfahren zum Befüllen eines Speicherbehälters weist darüber hinaus den Vorteil auf, dass aufgrund der realisierten, kontrollierten Druckerhöhung der zu befüllende Speicherbehälter mehr Masse an zu speicherndem Medium aufnehmen kann, da der Temperaturanstieg aufgrund des erfindungsgemäßen Verfahrens kontrollierbarer und für jede Speicherbehältergröße gleich ist. Des Weiteren kann auf die bisher erforderliche komplizierte Regelungstechnik sowie die vorgenannten Komponenten, wie Infrarotschnittstelle, etc., verzichtet werden.The inventive method for filling a storage container also has the advantage that due to the realized, controlled pressure increase of the storage container to be filled more mass to be stored medium, since the temperature increase due to the inventive method is more controllable and equal for each storage tank size. Furthermore, the previously required complicated control technology as well as the aforementioned components, such as infrared interface, etc., can be dispensed with.
Weitere Vorteile des erfindungsgemäßen Verfahrens zum Befüllen einesFurther advantages of the method according to the invention for filling a
Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium sind darin zu sehen, dass der Befüll- bzw. Betankungsvorgang weniger aufwendig ist, da bspw. das bisher erforderliche Anschließen eines das zu betankende Fahrzeug mit der Tankstelle "verbindende" Kommunikationskabel entfällt; dies ist insbesondere dann von Vorteil, wenn die Befüllprozedur durch Nicht-Fachpersonal vollzogen wird. Auch die mit den bisher verwendeten Infrarotschnittstellen verbundenen Nachteile, wie bspw. Abbruch wegen eines Störfalles, können nunmehr vermieden werden.Storage container with a gaseous, pressurized medium can be seen in the fact that the filling or refueling process is less expensive, since, for example, the previously required connecting a vehicle to be refueled with the gas station "connecting" communication cable deleted; This is particularly advantageous if the filling procedure is performed by non-specialist personnel. The disadvantages associated with the previously used infrared interfaces, such as abortion due to an accident, can now be avoided.
Es sei betont, dass das erfindungsgemäße Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium nicht auf die Befüllung eines Speicherbehälters mit gasförmigem, unter Druck stehendem Wasserstoff beschränkt ist. Vielmehr kann das erfindungsgemäße Verfahren bei allen Medien, bei denen während des Befüllvorganges ein kontrollierter Druckanstieg gewünscht oder erforderlich ist, Anwendung finden kann. It should be emphasized that the inventive method for filling a storage container with a gaseous, pressurized medium is not limited to the filling of a storage container with gaseous, pressurized hydrogen. Rather, the method according to the invention can be used in all media in which a controlled increase in pressure is desired or required during the filling process.

Claims

Patentansprüche claims
Verfahren zum Befüllen eines Speicherbehälters mit einem gasförmigen, unter Druck stehenden Medium, vorzugsweise mit gasförmigem, unter Druck stehenden Wasserstoff, dadurch gekennzeichnet, dass zu Beginn des Befüll Vorganges mittels eines Druckteststoßes eine Bestimmung des Speicherbehälterinnendrucks und anschließend in Abhängigkeit von dem ermitteltenA method for filling a storage container with a gaseous, pressurized medium, preferably with gaseous, pressurized hydrogen, characterized in that at the beginning of the filling process by means of a Druckteststoßes a determination of the storage container internal pressure and then in dependence on the determined
Speicherbehälterinnendruck ein Befüllvorgang mit zeitgesteuertem Druckanstieg bis zu dem gewünschten Speicherbehälterinnendruck erfolgt. Storage tank internal pressure filling with timed pressure increase up to the desired storage tank internal pressure.
PCT/EP2008/001060 2007-03-13 2008-02-12 Method for filling a hydrogen storage container WO2008110240A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2009553029A JP2010520977A (en) 2007-03-13 2008-02-12 Method for filling hydrogen storage container
US12/526,197 US20100175778A1 (en) 2007-03-13 2008-02-12 Method for filling a hydrogen storage container
EP08707680A EP2118556A1 (en) 2007-03-13 2008-02-12 Method for filling a hydrogen storage container

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JP6268499B2 (en) * 2015-10-21 2018-01-31 株式会社タツノ Gas filling device
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US20100175778A1 (en) 2010-07-15
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DE102007012080A1 (en) 2008-09-18

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