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WO2024146768A1 - Dispositif de traitement pour traiter un flux de gaz - Google Patents

Dispositif de traitement pour traiter un flux de gaz Download PDF

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Publication number
WO2024146768A1
WO2024146768A1 PCT/EP2023/086065 EP2023086065W WO2024146768A1 WO 2024146768 A1 WO2024146768 A1 WO 2024146768A1 EP 2023086065 W EP2023086065 W EP 2023086065W WO 2024146768 A1 WO2024146768 A1 WO 2024146768A1
Authority
WO
WIPO (PCT)
Prior art keywords
processing device
pressure
liquid
flushing
riser
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.)
Ceased
Application number
PCT/EP2023/086065
Other languages
German (de)
English (en)
Inventor
Martin Rölver
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.)
Hengst SE and Co KG
Original Assignee
Hengst SE and Co KG
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 Hengst SE and Co KG filed Critical Hengst SE and Co KG
Publication of WO2024146768A1 publication Critical patent/WO2024146768A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/12—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
    • F16T1/16—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a high-pressure chamber and a low-pressure chamber communicating with one another, i.e. thermodynamic steam chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/34—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers without moving parts other than hand valves, e.g. labyrinth type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H01M8/04164—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal by condensers, gas-liquid separators or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/38—Component parts; Accessories
    • F16T1/45—Means for venting or aerating

Definitions

  • the invention relates to a processing device for processing a gas flow, in particular an anode gas flow of a fuel cell system, with a liquid separator for separating liquid from the gas flow, a collecting container with a collecting reservoir for collecting the liquid separated from the gas flow by the liquid separator, a riser pipe fluidically connected to the collecting reservoir via a liquid passage, an outlet valve connected to the riser pipe for discharging liquid and gas from the processing device and a differential pressure-operated pressure relief valve which is fluidically connected to the liquid separator on a first side and fluidically connected to the outlet valve on a second side, so that during normal operation of the processing device an operating pressure acts on the pressure relief valve on the first side and an outlet pressure acts on the pressure relief valve on the second side.
  • Generic treatment devices are used, for example, in fuel cell systems in which the gas flow to be treated is an anode gas flow comprising gaseous hydrogen and liquid water, which is fed back into the fuel cell after the liquid water has been separated and enriched with gaseous hydrogen.
  • the nitrogen concentration in the gas flow exceeds a concentration limit.
  • the treatment device is used not only to separate the water but also to divert the gas flow from the gas circulation path.
  • Normal operation refers to an uninterrupted operating state of the treatment device. If the liquid in the treatment device freezes, operation is impaired and the treatment device is no longer in normal operation.
  • the pressure relief valve is preferably a passive, i.e. not actively controlled, pressure relief valve.
  • the pressure relief valve closes when the pressure difference between the operating pressure in the collecting reservoir and the pressure in the riser falls below the differential pressure limit again.
  • the pressure relief valve can be closed by closing the outlet valve.
  • the pressure relief valve can be closed by a pressure approximation between the operating pressure in the collecting reservoir and the pressure in the riser with the outlet valve open.
  • a processing device is also preferred which has a control device for controlling the outlet valve.
  • a flushing process for discharging the gas flow from the processing device and an emptying process for discharging the liquid in the collecting reservoir and the riser from the processing device can be initiated.
  • the control device is preferably designed to temporarily close the outlet valve between an emptying process and a flushing process.
  • the control device can be designed to allow an emptying process-free and a flushing process-free period to elapse between a flushing process following an emptying process. The emptying process and the flushing process thus take place at a time interval from one another. This is possible because a flushing process for discharging the gas flow can be carried out even when liquid is present.
  • a processing device is also preferred in which the control device is designed to control the outlet valve in such a way that the gas purging path is intermittently released during the purging process.
  • the control device is preferably designed to open and close the outlet valve several times, in particular at high frequency, during a purging process. The gas purging thus takes place in a burst or pulse-like manner.
  • the anode gas flow preferably comprises liquid to be separated, for example water.
  • the gas of the anode gas flow can be a fuel gas.
  • the gas of the anode gas flow comprises gaseous hydrogen.
  • Fig. 3 shows the processing device shown in Fig. 2 with the outlet valve open during a flushing pulse of a flushing process in a schematic representation
  • a processing device 10 is located between the line sections 116a, 116b of the gas circulation path 114.
  • the processing device 10 has a liquid separator 12, by means of which liquid F can be separated from the gas flow supplied to the processing device 10.
  • the processing device 10 has a collecting container 14.
  • the liquid F collected in the collecting container 14 can then be introduced into the discharge line 118 via an outlet valve 16 of the processing device 10 for discharge from the fuel cell system 100.
  • the anode gas flow can also be discharged from the gas circulation path 114 by means of the processing device 10.
  • the anode gas must be discharged if the nitrogen concentration exceeds a concentration limit value due to nitrogen enrichment.
  • the anode gas flow is also discharged via the outlet valve 16 and the discharge line 118.
  • the gas passage 30 is comparatively small, so that the volume flow that flows through the gas passage 30 during the flushing process SV is negligible compared to the volume flow that flows through the open pressure relief valve 26.
  • the gas passage 30 can also be implemented by a pressure relief valve 26 with intentional leakage or a pressure relief valve 26 with a passage opening on the valve body, so that a gas passage 30 separate from the pressure relief valve 26 is not necessarily required.
  • the liquid level FS in the riser 24 temporarily rises during the flushing process SV. Accordingly, the liquid level FR in the collecting reservoir 20 also drops slightly. During a flushing process SV, however, the liquid level FS in the riser 24 never exceeds a maximum flushing level FSmax. This is achieved by only maintaining the pressure conditions that lead to the opening of the pressure relief valve 26 for a short time.
  • the pressure relief valve 26 closes when the pressure difference between the operating pressure PB in the collecting reservoir 20 and the outlet pressure PA in the riser 24 falls below the differential pressure limit again. The closing of the pressure relief valve 26 can therefore be caused by closing the outlet valve 16, since when the outlet valve 16 is closed, pressure equalization between the collecting reservoir 20 and the riser 24 takes place due to the gas passage 30.
  • Fig. 4 shows the processing device 10 after the outlet valve 16 has been closed and the pressure relief valve 26 has subsequently been closed. Due to the pressure equalization that now occurs between the collecting reservoir 20 and the riser 24, the liquid level FS in the riser 24 now decreases.
  • the control device 32 can be set up to open the outlet valve 16 several times for a purging duration SD during a purging process SV, so that the gas purging path SP is intermittently released during the purging process SV. Due to the intermittent release of the gas purging path SP, the liquid level FS in the riser 24 increases and decreases several times, whereby the maximum purging level FSmax is never exceeded.
  • control device 32 initiates another flushing process SV.
  • the liquid level FR in the collecting reservoir 20 continues to rise over time t during the flushing process SV.
  • Fig. 8 shows the development of the operating parameters over time t during an emptying process EV.
  • the liquid F which has accumulated in the collecting reservoir 20 is to be discharged from the processing device 10 via the outlet valve 16. Due to the valve states VZA of the outlet valve 16 and the valve states VZU of the pressure relief valve 26 shown, a drop in the outlet pressure PA from a
  • the drain outlet pressure PAE can be equal to the flush outlet pressure PAS. Furthermore, the operating pressure PB drops from

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne un dispositif de traitement (10) pour traiter un flux de gaz, comprenant un séparateur de liquide (12) pour séparer le liquide (F) du flux de gaz, un récipient de collecte (14) ayant un réservoir de collecte (20) pour collecter le liquide (F) séparé du flux de gaz par le séparateur de liquide (12), une colonne montante (24) reliée de manière conductrice de fluide au réservoir de collecte (20) par l'intermédiaire d'un passage de liquide (22), une soupape de sortie (16), reliée à la colonne montante (24), pour évacuer le liquide (F) et le gaz du dispositif de traitement (10) et une soupape de décharge de pression actionnée par pression différentielle (26) qui est en communication fluidique avec le séparateur de liquide (12) sur un premier côté et est en communication fluidique avec la soupape de sortie (16) sur un second côté.
PCT/EP2023/086065 2023-01-05 2023-12-15 Dispositif de traitement pour traiter un flux de gaz Ceased WO2024146768A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023100238.4A DE102023100238A1 (de) 2023-01-05 2023-01-05 Aufbereitungsvorrichtung zum Aufbereiten einer Gasströmung
DE102023100238.4 2023-01-05

Publications (1)

Publication Number Publication Date
WO2024146768A1 true WO2024146768A1 (fr) 2024-07-11

Family

ID=89430483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/086065 Ceased WO2024146768A1 (fr) 2023-01-05 2023-12-15 Dispositif de traitement pour traiter un flux de gaz

Country Status (2)

Country Link
DE (1) DE102023100238A1 (fr)
WO (1) WO2024146768A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005327665A (ja) * 2004-05-17 2005-11-24 Toyota Motor Corp 気液分離システム
JP2008262867A (ja) * 2007-04-13 2008-10-30 Toyota Motor Corp 燃料電池システム
JP5330736B2 (ja) * 2008-05-27 2013-10-30 本田技研工業株式会社 燃料電池システム
DE102012020280A1 (de) * 2012-10-17 2013-11-28 Daimler Ag Wasserabscheider für einen Anodenkreislauf
US20190363375A1 (en) * 2018-05-25 2019-11-28 Toyota Jidosha Kabushiki Kaisha Gas and water discharge unit for fuel cell system
US20200373592A1 (en) * 2017-11-28 2020-11-26 Robert Bosch Gmbh Gas-liquid separator for separating at least one liquid component from a gaseous component
US20210367248A1 (en) * 2018-10-12 2021-11-25 Shanghai Everpower Technologies Ltd. Shanghai Everpower Technologies Ltd. Fuel-cell hydrogen recycling means
DE102021105669A1 (de) 2021-03-09 2022-09-15 Hengst Se Gasmanagementvorrichtung und Verfahren zum Kondtionieren von Anodengas einer Brennstoffzelle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016011135A1 (de) * 2016-09-15 2018-03-15 Daimler Ag Flüssigkeitsabscheider für ein Brennstoffzellensystem
DE102017202526B4 (de) * 2017-02-16 2019-02-07 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Ablassen von Flüssigkeit aus einem Anodensubsystem sowie Brennstoffzellensystem

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005327665A (ja) * 2004-05-17 2005-11-24 Toyota Motor Corp 気液分離システム
JP2008262867A (ja) * 2007-04-13 2008-10-30 Toyota Motor Corp 燃料電池システム
JP5330736B2 (ja) * 2008-05-27 2013-10-30 本田技研工業株式会社 燃料電池システム
DE102012020280A1 (de) * 2012-10-17 2013-11-28 Daimler Ag Wasserabscheider für einen Anodenkreislauf
US20200373592A1 (en) * 2017-11-28 2020-11-26 Robert Bosch Gmbh Gas-liquid separator for separating at least one liquid component from a gaseous component
US20190363375A1 (en) * 2018-05-25 2019-11-28 Toyota Jidosha Kabushiki Kaisha Gas and water discharge unit for fuel cell system
US20210367248A1 (en) * 2018-10-12 2021-11-25 Shanghai Everpower Technologies Ltd. Shanghai Everpower Technologies Ltd. Fuel-cell hydrogen recycling means
DE102021105669A1 (de) 2021-03-09 2022-09-15 Hengst Se Gasmanagementvorrichtung und Verfahren zum Kondtionieren von Anodengas einer Brennstoffzelle

Also Published As

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