EP3501052A1 - Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz - Google Patents

Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz

Info

Publication number
EP3501052A1
EP3501052A1 EP17751091.4A EP17751091A EP3501052A1 EP 3501052 A1 EP3501052 A1 EP 3501052A1 EP 17751091 A EP17751091 A EP 17751091A EP 3501052 A1 EP3501052 A1 EP 3501052A1
Authority
EP
European Patent Office
Prior art keywords
unit
gas
gas processor
processor unit
exhaust gas
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Withdrawn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
EP17751091.4A
Other languages
German (de)
English (en)
Inventor
Norbert Domaschke
Maxime Carre
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3501052A1 publication Critical patent/EP3501052A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
    • 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
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H01M8/04022—Heating by combustion
    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
    • 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
    • F28D2021/0043—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for fuel cells
    • 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
    • Y02E60/50—Fuel cells

Definitions

  • Gas processor unit and fuel cell device with such a gas processing unit
  • the present invention relates to a gas processor unit, in particular cathode gas processor, for a fuel cell device, which has at least a first functional unit.
  • the present invention also relates to a fuel cell device having a gas processing unit according to the invention.
  • the present invention has the advantage that at least one first connection box (70) and at least one second connection box (72) are arranged, which are set up to supply at least one exhaust gas, thereby enabling a more efficient operation of the gas processing unit.
  • a fuel cell device is to be understood as meaning, in particular, a device which in particular has a preferably functional component, in particular a design element. and / or functional component, a fuel cell system or the entire fuel cell system is formed.
  • a "fuel cell unit” is to be understood as meaning in particular a unit having at least one fuel cell which is provided with at least one chemical energy of at least one, in particular continuously supplied, fuel gas, in particular hydrogen and / or carbon monoxide, and at least one oxidant , in particular oxygen, in particular into electrical energy.
  • the at least one fuel cell can be used, in particular, as a solid oxide fuel cell.
  • the at least one fuel cell unit comprises a plurality of fuel cells, which are arranged in particular in a fuel cell stack.
  • a "gas processor unit” should be understood as meaning, in particular, a unit which is provided with a particularly gaseous fluid in front of a supply line to an anode and / or to a cathode of a fuel cell unit for use within a reaction taking place in the fuel cell unit.
  • at least part of a gas processor unit or the gas processor as a unit is a cathode gas processor and / or an anode gas processor
  • Partial unit of the gas processor unit are understood, which is in particular intended to make at least a contribution to a preparation and / or preparation of the particular gaseous fluid and / or the at least one exhaust gas.
  • the gas processor unit comprises in particular a plurality, in particular at least two, in particular different from each other and / or identical to each other trained, functional units.
  • the functional units of the gas processor unit are integrated in a common housing of the gas processor unit.
  • a part of the functional units is designed as a cathode gas processor and / or as an anode gas processor.
  • a "cathode gas processor” is to be understood as meaning, in particular, a unit which is intended in particular to heat an ambient air to a reaction temperature before being supplied to a cathode of a fuel cell unit and / or to postpone an anode exhaust gas of the fuel cell unit, alternatively or additionally, the cathode gas processor may be provided be to heat at least a portion of a natural gas and / or a fuel gas and / or a fuel gas-containing gas mixture to a reaction temperature.
  • an "anode gas processor” is to be understood in particular as meaning a unit which is intended in particular to heat a natural gas and / or a fuel gas and / or a gas mixture containing gas to a reaction temperature and / or the natural gas into a fuel gas and / or a fuel gas mixture
  • the anode gas processor may be provided to heat at least a portion of ambient air to a reaction temperature prior to delivery to a cathode of a fuel cell unit.
  • a "natural gas” is to be understood as meaning, in particular, a gas and / or a gas mixture, in particular a natural gas mixture, which comprises at least one alkane, in particular methane, ethane, propane and / or butane , in particular carbon dioxide and / or nitrogen and / or oxygen and / or sulfur compounds.
  • connection box is to be understood as meaning a space, in particular an antechamber and / or plenum, which is adapted to a fluid, in particular an exhaust gas, such as, for example, cathode exhaust gas or anode exhaust gas, or natural gas, and / or ambient air
  • a junction box itself may have additional process connections, which are intended to allow a supply and / or discharge of fluids to a gas processor unit.
  • the at least one first connection box for supplying cathode exhaust gas is set up and the at least one second connection box is arranged for supplying anode exhaust gas, thereby enabling effective operation of the gas processor unit, in particular of the cathode gas processor.
  • a terminal box which is provided for feeding cathode exhaust gas
  • a connection box which is provided for feeding anode exhaust gas
  • at least one component of a functional unit such as a Nachbrenntician, or more functional units.
  • a terminal box may not be part of a functional unit.
  • a terminal box or a plurality of terminal boxes may be formed as a module, in particular as a module for expanding a gas processor unit.
  • a connection box is preferably at least one component of a gas processor unit.
  • the at least one first functional unit is designed as a post-combustion unit and / or the gas processor unit has at least one second functional unit, which is preferably designed as a heat exchanger, whereby a compact design with minimized heat losses is made possible.
  • a "afterburner unit” is to be understood as meaning in particular a unit which is intended to at least substantially after-burn at least one combustible component of an exhaust gas. at least largely oxidize.
  • the afterburner unit may comprise a catalytic afterburner and / or a diffusion burner and / or a recuperative burner and / or a partially and / or fully premixing burner and / or a pore burner.
  • a heat exchanger is to be understood as meaning, in particular, a unit which is intended to transfer heat in the direction of a temperature gradient between at least two, in particular, fluid streams, in particular in a crossflow mode and / or in a DC principle and / or preferably in one
  • Functional units embodied as heat exchangers are provided, in particular, for transferring heat from at least one fluid stream, in particular an exhaust gas and / or an exhaust gas mixture of the fuel cell unit, to an ambient air, which is supplied to the fuel cell unit in at least one operating state the units configured as heat exchangers are in each case designed as coaxial heat exchangers and / or helical tube heat exchangers
  • a functional unit designed as a heat exchanger could be provided for, W RME, to be transmitted from at least one fluid stream, in particular an exhaust gas, preferably an anode exhaust gas from a fuel cell unit, in particular a natural gas and / or a fuel gas and / or a combustion gas containing gaseous mixture,
  • a "reformer unit” is to be understood as meaning in particular a chemical-technical unit for at least one, in particular partial or complete, treatment of the natural gas, in particular by steam reforming and / or by partial oxidation and / or by an autothermal reforming , In particular for the production of at least one fuel gas and / or a gas-containing gas mixture understood.
  • At least one third connection box which is set up to supply cathode exhaust gas or anode exhaust gas, is arranged, as a result of which, in particular, the fed cathode exhaust gas and / or anode exhaust gas can be spatially distributed in a targeted manner.
  • the at least one first functional unit has at least one wall, in particular a perforated plate, with a multiplicity of openings, wherein in particular the connection boxes are formed adjacent to the at least one wall.
  • terminal boxes are rotationally symmetrical or circularly symmetrical, whereby a cost-effective production and a reduction of possibly occurring thermo-mechanical stresses is made possible.
  • connection boxes are arranged ordered along at least one direction according to their respective size, whereby in particular the accessibility to the process connections of the junction boxes is improved.
  • the terminal boxes are arranged "arranged along at least one direction according to their respective size.” It should be understood in this context that, in particular starting from a junction box with a greatest spatial extent or with a smallest spatial extent along one direction, the further one Junction boxes are arranged with decreasing spatial extent or increasing spatial extent.
  • the terminal boxes are arranged concentrically, in particular in the radial direction, side by side, whereby in particular a supply of cathode exhaust gas and anode exhaust gas to afterburning unit over a large area of the wall, in particular the perforated plate is distributed.
  • at least two of the junction boxes are arranged inside each other, in particular the at least one second junction box within the at least one first junction box, thereby allowing a much more compact design of the gas processor unit.
  • the at least one second functional unit is at least partially designed as a helical tube heat exchanger, whereby a more effective heat transfer is achieved.
  • the at least second functional unit in particular the helical tube heat exchanger, is integrated in the at least one first functional unit, preferably in a combustion chamber of the afterburner unit, whereby a more compact design is achieved.
  • a pitot tube is arranged for stowage of hot exhaust gas of the afterburner unit, whereby in particular the flow path of the exhaust gas can be specifically influenced.
  • At least one additional Abgasleitsch in particular helical Abgasleitsch arranged, which is particularly intended to hot exhaust gas of the afterburner unit, preferably along a course of helical Rohr Chipübertragers to lead, whereby the heat transfer can also be further improved.
  • the at least one first functional unit has at least one access, preferably closable access, in particular a service opening, whereby a maintenance of the gas processor unit is made possible.
  • the at least second functional unit is at least partially designed as a helical double tube heat exchanger, in particular with at least one pipe transposition, whereby the heat transfer is additionally increased.
  • Fig. 1 is a schematic representation of an embodiment of a fuel cell device
  • Fig. 2 is a schematic external view of an embodiment of a gas processor unit
  • Fig. 3 is a schematic cross-sectional view of an embodiment of a gas processor unit
  • Fig. 4 is a schematic cross-sectional view of a lower portion of the embodiment of the gas processing unit of Fig. 3;
  • Fig. 5 is a schematic cross-sectional view of another embodiment of a gas processor unit
  • Fig. 6 is a schematic cross-sectional view of another embodiment of a gas processor unit
  • Fig. 7 is a schematic cross-sectional view of another embodiment of a gas processor unit
  • Fig. 8 is a schematic cross-sectional view of a lower portion of the embodiment of the gas processing unit of Fig. 7; 9 is a schematic cross-sectional view of another embodiment of a gas processor unit;
  • FIG. 1 shows a schematic representation of an exemplary embodiment of a fuel cell device 10.
  • the fuel cell device 10 comprises a fuel cell unit 12.
  • the fuel cell unit 12 is shown here in simplified form as a fuel cell 14 for generating electrical and thermal energy.
  • the electrical energy can be tapped via two DC lines 16, 18.
  • a design of a fuel cell unit as a fuel cell stack with a plurality of fuel cells is conceivable.
  • the fuel cell 14 is preferably designed as a solid oxide fuel cell.
  • the fuel cell unit 12, or the fuel cell 14 comprises an anode 20, a cathode 22 and an electrolyte 24 arranged between the anode 20 and the cathode 22.
  • the fuel cell device 10 has two gas processor units 26, 28.
  • the gas processor unit 26 is a cathode gas processor 30.
  • the gas processor unit 28 is an anode gas processor 32.
  • the two gas processor units 26, 28 it is also conceivable for the two gas processor units 26, 28 to be housed in a gas processor unit, in particular as a unit. are formed.
  • the cathode gas processor 26 has a first functional unit 34 and a second functional unit 36.
  • the first functional unit 34 is designed as a post-combustion unit 38, while the second functional unit 36 is designed as a heat exchanger 40.
  • the anode gas processor 32 has a third functional unit 42, a fourth functional unit 44 and a fifth functional unit 46.
  • the third functional unit 42 and the fifth functional unit 46 are each designed as heat exchangers 48, 52, while the fourth functional unit 44 is designed as a reformer unit 50.
  • the fourth functional unit 44 is fluidically connected between the third functional unit 42 and the fifth functional unit 46.
  • the fuel cell device 10 is supplied with a fresh gas.
  • the fresh gas consists of fresh natural gas and a recirculate, which is discharged via a second process connection 56 from the fuel cell device 10.
  • the natural gas and the recirculate are combined outside the fuel cell device 10 via a connection 58 and compressed by means of a compressor 60.
  • the natural gas and the recirculate may be combined within the fuel cell device 10 via the connection 58.
  • the fresh gas is preheated in the third functional unit 42 by an anode exhaust gas of the fuel cell unit 12.
  • the third functional unit 42 may be preceded by a desulfurization unit, not shown here, in particular a hot desulfurization unit. It is then passed through the fourth functional unit 44 into the fifth functional unit 52, in which it is heated to a reaction temperature between 650 ° C and 850 ° C.
  • the fourth functional unit 44 which is designed as a reformer unit 50, serves for an endothermic steam reforming of the long-chain alkanes present in natural gas (C X H2 ( X + D, where x> 1):
  • the fuel gas-containing reformate obtained by the fourth functional unit 18 is fed to the anode 20 of the fuel cell unit 12 where it is replaced by an electrochemical Reaction is reacted to generate electrical and thermal energy.
  • a hot anode exhaust gas of the fuel cell unit 12 is passed into the fifth functional unit 52 in order to heat the fresh gas to the reaction temperature. Since the reformate is not completely convertible in the anode 20 of the fuel cell unit 12, a part of the anode exhaust gas, as already described, supplied to the fresh natural gas as recirculate. The remainder of the anode exhaust gas is supplied to the first functional unit 34.
  • the first functional unit 34 combustible constituents of the anode exhaust gas are post-combusted.
  • the heat generated in the first functional unit 34 is used to heat an ambient air supplied to the fuel cell apparatus 10 via a third process connection 62 for the cathode 22 and to heat, for example, heating water and / or process water to a fifth process connection 64 .
  • the ambient air in the second functional unit 36 is heated to the reaction temperature.
  • a cathode exhaust gas is passed directly into the first functional unit 34.
  • natural gas may be supplied to the first functional unit 34 via a conduit 66. This may be necessary above all during a heating process of the fuel cell device 10.
  • FIG. 2 shows a schematic external representation of an embodiment of a gas processor unit 26.
  • the gas processor unit 26, in the case shown, the cathode gas processor 30, for the fuel cell device 10, has - as already explained - the first functional unit 34.
  • the gas processor unit 26, or the cathode gas processor 30 is at least substantially cylindrical.
  • the gas processor unit 26, or the cathode gas processor 30 shown is characterized in particular by the fact that a first connection box 70 and a second connection box 72 are arranged, which are set up to supply exhaust gas.
  • the gas processor unit 26 or the cathode gas processor 30 can be better integrated into the fuel cell apparatus 10. Above all, the gas processing unit 26 can be more easily integrated into the fuel cell device 10 downstream of the fuel cell unit 12.
  • the first connection box 70 is set up to supply cathode exhaust gas and the second connection box 72 is designed to supply Anode exhaust, whereby cathode exhaust and anode exhaust gas can be fed in parallel.
  • a third connection box 74 which is set up to supply cathode exhaust gas, is additionally arranged.
  • the supply of cathode exhaust gas is additionally spatially distributed through the third connection box.
  • the third connection box 74 is provided for feeding anode exhaust gas.
  • the first connection box 70 is arranged to supply anode exhaust gas and the second connection box 72 is adapted to supply cathode exhaust gas.
  • the third connection box 74 is set up to supply anode exhaust gas.
  • the cathode exhaust gas to be fed is fed to the first connection box 70 via a first supply line 76 and the third connection box 74 via a third supply line 80.
  • the second terminal box 72 is supplied with the anode exhaust gas to be fed via a second supply line 78.
  • the first functional unit 34 is designed as a post-combustion unit 38.
  • the fed anode gas is mixed with the supplied cathode gas inside the gas processing unit 26, and the cathode gas processor 30, effectively burned, wherein in the first functional unit 34, and in the Nachbrenntician 30, resulting hot exhaust gas, the gas processing unit 26 via a Exit opening 82 leaves.
  • the gas processor unit 26, or the cathode gas processor 30, as already mentioned, has a second functional unit 36, which is designed as a heat exchanger 40.
  • the heat exchanger 40 is
  • Ambient air supplied via a fourth supply line 84 whereby a portion of the heat of the in the first functional unit 34, and the Nachbrenntician 38, resulting hot exhaust gas is transferred to the ambient air.
  • the preheated ambient air leaves the second functional unit 36, or the heat exchanger 40, via a discharge line and, as shown in FIG. 1, the cathode 22 is supplied to the fuel cell unit 12.
  • the exhaust gas of the first functional unit 34, or of the afterburner unit 38 which is partly cooled by the transfer of heat to the ambient air, is subsequently removed from the outlet opening 62 via the fifth process connection 62 shown in FIG Heating of heating water and / or service water can be used.
  • FIG. 3 shows a schematic cross-sectional representation of an exemplary embodiment of a gas processor unit 26 or of the cathode gas processor 30.
  • the first functional unit 36, or the afterburner unit 38 has a combustion chamber 88, which is cylindrical in the interior of the gas processor 26 and is surrounded by the second functional unit 36, or the heat exchanger 40, in the manner of a shell.
  • the heat exchanger 40 is designed as a coaxial heat exchanger 90, wherein the supplied ambient air to be heated is guided in opposite directions to the hot exhaust gas produced in the first functional unit 34 or the afterburning unit 38.
  • the combustion chamber 88 is bounded by a cylindrical wall 92.
  • the cylindrical wall 92 is part of the Koaxial desprestedtragers 90 and thus also the second functional unit
  • the cylindrical wall 92 can also be at least partially understood as a part of the combustion chamber 88 and thus also the first functional unit 34.
  • the terminal boxes 70, 72, 73 are formed in the illustrated embodiment in a lower portion 94 of the gas processing unit 26.
  • the first functional unit 34 has a wall 96, in the case shown a perforated plate
  • FIG. 4 shows a diagrammatic cross-sectional view of the lower region 94 of the gas processor unit 26 or of the cathode gas processor 30 from FIG. 3.
  • at least one part, or a number, of the multiplicity of openings 102 is fluidically in each case at least one of the junction boxes 70, 72, 74 is assigned.
  • the at least one part of the plurality of openings 102 is in each case formed in a subregion 104, 106, 108 which adjoins in each case at least one of the terminal boxes 70, 72, 74.
  • a first number of openings 110 is arranged in a circle in an inner portion 104, wherein the openings 110 are fluidly connected to the first connection box 70.
  • a second number of openings 112 are also arranged in a circle, wherein the openings 112 are fluidly connected to the second connection box 72.
  • a third number of openings 114 are also arranged in a circle, wherein the openings 114 are fluidly connected to the third connection box 74.
  • the openings 102 may have different sizes.
  • the openings 112 in the central portion 106 are smaller than the openings 110 in the inner portion 104 and the openings 114 in the outer portion 108.
  • anode exhaust gas can be fed through the openings 112 in the central portion 106 at a higher speed in the combustion chamber 88 , which in turn favors the mixing of anode exhaust gas and cathode exhaust gas.
  • terminal boxes 70, 72, 74 rotationally symmetric, or
  • junction boxes 70, 72, 74 are arranged along at least one direction according to their respective sizes. Whereby the supply lines 76, 78, 80 can be more easily connected to the terminal boxes, while at the same time ensuring the compactness of the gas processor unit 26.
  • the terminal boxes 70, 72, 74 are arranged along at least one direction according to their respective sizes. Whereby the supply lines 76, 78, 80 can be more easily connected to the terminal boxes, while at the same time ensuring the compactness of the gas processor unit 26.
  • connection boxes form a pyramidal arrangement.
  • connection boxes 70, 72, 74 are arranged concentrically, in particular in the radial direction, next to one another.
  • the first terminal box 70 is formed cylindrically in the middle, wherein the second terminal box 72 is formed annularly around the first terminal box 70.
  • the third terminal box 74 is formed annularly around the second terminal box 72. Since the terminal box 70, 72, 74 are formed side by side in such a way, a corresponding concentric arrangement of the openings 102 can be realized, whereby a concentrically alternating supply of anode exhaust gas and cathode exhaust gas is made possible. This in turn favors the mixing of anode exhaust gas and cathode exhaust gas, which enables a particularly high-yield combustion.
  • FIG. 5 shows a schematic cross-sectional representation of a further exemplary embodiment of a gas processor unit 26 or of a cathode gas processor 30.
  • at least two of the connection boxes 70, 72, 74 are arranged one inside the other, in the case shown the second connection box 72 within the first connection box 70.
  • the first terminal box 70 is required for the supply of cathode exhaust gas, whereby the formation of a third terminal box 74, as shown in the embodiment according to Figures 1 to 4, can be omitted. Accordingly, this is on the one hand the
  • a third supply line 80 is eliminated.
  • the first supply line 76 for the supply of cathode exhaust gas to the first junction box 70 and the second supply line 78 for the supply of anode exhaust gas to the second junction box 72 is arranged.
  • the second supply line 78 extends partially within the first junction box 70, whereby the supply of anode exhaust gas to the second junction box 72 is made possible.
  • the second functional unit 36, or the heat exchanger 30 is designed as a helical tube heat exchanger 120.
  • the helical tube heat exchanger 120 is integrated into the combustion chamber 80 of the first functional unit 34, or the afterburner unit 38. As a result, the hot exhaust gas produced in the first functional unit 34 or the afterburning unit 38 can flow around the helical tubular heat exchanger 120.
  • the fourth supply line 84 and the discharge line 86 are formed in the axial direction compared to the embodiment of Figures 1 to 4, which is based on the flow of ambient air also allows axial integration in a fuel cell device 10, whereby In turn, thermo-mechanical stresses, the number of joints and pressure losses are reduced.
  • the gas processing unit 26 shown in the lower portion 94 an expansion 126 of the combustion chamber 88, whereby the discharge line 86 can be passed through the combustion chamber 88 without affecting the combustion in the region of the openings 102.
  • a stowage tube 122 for stowage of hot exhaust gas of the afterburner unit 38 is arranged, whereby the hot exhaust gas of the afterburner unit 38 flows past the helical tube heat exchanger 120, which in turn causes the heat transfer. is effectively increased to the ambient air flowing in the helical heat exchanger ambient.
  • the pitot tube 122 is closed at one of the outlet opening 82 side facing. In the case shown, the pitot tube 122 is closed at the outlet opening 82 side facing by a plate 124. As a result, the resulting from the combustion in the Nachbrenntician 38 corrosions, in comparison to the closure of the other pipe end on a wall 96 side facing reduced. Furthermore, the exhaust-side pressure losses are reduced, since the hot exhaust gas can be expressed more continuously after combustion and does not strike a closing plate directly.
  • FIG. 6 shows a schematic cross-sectional representation of a further embodiment of a gas processor unit.
  • an additional Abgasleitstoff 130 in the case shown a helical Abgasleitffen 130, arranged, which is intended to lead hot exhaust gas of the afterburner unit 38 along the course of the helical Rohrchipübertragers 120, whereby the heat transfer is additionally increased to the guided in the helical tube heat exchanger 120 ambient air
  • the exhaust gas routing means 130 is an exhaust gas guide plate 132.
  • FIG. 7 shows a schematic cross-sectional representation of a further exemplary embodiment of a gas processor unit 26 or of the cathode gas processor 30.
  • the first functional unit 34, or the afterburning unit 38 has an access 140, in the case shown a closable access 140, which represents a service opening 142.
  • the access 140 can be closed or opened by a flap 144. Through the access 140, or the service opening 142, a maintenance, or cleaning, the afterburning unit 38 is made possible.
  • FIG. 8 shows a schematic cross-sectional illustration of the lower region 94 of the exemplary embodiment of the gas processor unit 26 or of the cathode gas processor 30 from FIG. 7. It can be seen that in the wall 96, or the perforated plate 100, in addition to the openings 102, a larger opening 146 is formed. Thus, the access 140 is formed in part in the wall 96 of the first functional unit 26, and the afterburner unit 34, whereby the combustion chamber 88 of the afterburning unit 34 is accessible for maintenance.
  • the first connection box 70 shown in FIG. 4 is modified to an access 140. This could be accomplished by forming a flap similar to the flap 144 on the underside of the junction box 70 and a larger opening on the top of the junction box 70, similar to the larger opening 146 in the wall 96 or perforated plate 100, respectively is formed, whereby the combustion chamber 88 is accessible for maintenance.
  • FIG. 9 shows a schematic cross-sectional representation of a further exemplary embodiment of a gas processor unit 26 or of a cathode gas processor 30.
  • the second functional unit 36 is formed as a helical double tube heat exchanger 150, whereby the heat exchanging surface and thus also the heat transfer is increased to the ambient air flowing in the heat exchanger 40.
  • the length of the heat exchanger 40, or the helical Doppelrohr Beresttragers 150 can be reduced by the increased heat exchanging surface, which in turn pressure losses are minimized.
  • the helical double tube heat exchanger 150 is formed with a tubular transport 152, whereby the length of the individual tube coils 154, 156 is compensated. Thus, the pressure losses in the individual coiled tubing 154, 156 are compared with each other.
  • the helical tube heat exchangers 120 shown in FIGS. 5 to 7 and / or the helical double tube heat exchangers 150 shown in FIG. 9 can also be understood as helical tube heat exchangers.

Landscapes

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

Abstract

La présente invention concerne une unité de traitement de gaz (26, 28), en particulier un dispositif de traitement de gaz de cathode (26), pour un dispositif de pile à combustible (10) qui comprend au moins une première unité fonctionnelle (34). L'invention est caractérisée en ce qu'elle comprend au moins un premier boîtier de raccordement (70) et au moins un second boîtier de raccordement (72) qui sont conçus pour la fourniture d'au moins un gaz d'évacuation. La présente invention concerne en outre un dispositif de pile à combustible (10) ayant une telle unité de traitement de gaz (26).
EP17751091.4A 2016-08-18 2017-08-10 Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz Withdrawn EP3501052A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016215453.2A DE102016215453A1 (de) 2016-08-18 2016-08-18 Gasprozessoreinheit, sowie Brennstoffzellenvorrichtung mit einer solchen Gasprozessoreinheit
PCT/EP2017/070274 WO2018033458A1 (fr) 2016-08-18 2017-08-10 Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz

Publications (1)

Publication Number Publication Date
EP3501052A1 true EP3501052A1 (fr) 2019-06-26

Family

ID=59579639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17751091.4A Withdrawn EP3501052A1 (fr) 2016-08-18 2017-08-10 Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz

Country Status (3)

Country Link
EP (1) EP3501052A1 (fr)
DE (1) DE102016215453A1 (fr)
WO (1) WO2018033458A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020202886A1 (de) 2020-03-06 2021-09-09 Robert Bosch Gesellschaft mit beschränkter Haftung Peripheriegerätevorrichtung für eine Brennstoffzelleneinheit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001272281B2 (en) * 2000-07-10 2006-09-21 Versa Power Systems, Ltd. Integrated module for solid oxide fuel cell systems
JP2003089505A (ja) * 2001-09-11 2003-03-28 Aisin Seiki Co Ltd 改質装置および燃料電池システム
DE10360458A1 (de) * 2003-12-22 2005-07-28 J. Eberspächer GmbH & Co. KG Brennstoffzellensystem
GB2436855A (en) * 2006-04-05 2007-10-10 David Davies Combustion apparatus, eg diesel engine, with exhaust gas recirculation
JP2008094671A (ja) * 2006-10-13 2008-04-24 Mitsubishi Heavy Ind Ltd 燃料改質装置及びこれを利用する燃料電池発電システム
DE102014207143A1 (de) * 2014-04-14 2015-10-15 Robert Bosch Gmbh Brennstoffzellenvorrichtung
DE102014226082A1 (de) 2014-12-16 2016-06-16 Robert Bosch Gmbh Brennstoffzellenvorrichtung

Also Published As

Publication number Publication date
WO2018033458A1 (fr) 2018-02-22
DE102016215453A1 (de) 2018-02-22

Similar Documents

Publication Publication Date Title
DE102006020405B4 (de) Brennstoffzellensystem und Verfahren zum Betreiben
DE102006020097B4 (de) Brennstoffzellensystem und Verfahren zum Betreiben
DE102012100468A1 (de) Brennkammer für die emissionsarme Verbrennung von mehreren vorgemischten reformierten Brennstoffen und verwandtes Verfahren
EP1425244B1 (fr) Unite de reformage compacte destinee a la production d'hydrogene a partir d'hydrocarbures gazeux dans la gamme de petite puissance
DE60011425T2 (de) Sekundär reformierungsverfahren und brenner
DE102005038733A1 (de) Brennstoffzellensystem und Verfahren zum Betreiben eines Reformers
DE102015216257B4 (de) Brennstoffzellenmodul
WO2019178628A1 (fr) Système de pile à combustible à construction empilée
DE102017001564B4 (de) Verfahren zum Starten einer Brennstoffzellenanordnung und Brennstoffzellenanordnung
WO2011092070A1 (fr) Système de piles à combustible à circulation améliorée du combustible gazeux
EP3501052A1 (fr) Unité de traitement de gaz ainsi que dispositif de pile à combustible ayant une telle unité de traitement de gaz
DE112013006536B4 (de) Brennstoffzellenmodul
DE102015216254B4 (de) Brennstoffzellenmodul
EP3132484B1 (fr) Dispositif de pile à combustible
DE102011015717B4 (de) Wärmerückgewinnungseinrichtung
DE112009000652B4 (de) Reformiervorrichtung
EP3235038B1 (fr) Dispositif de pile à combustible
DE102007033864B4 (de) Verfahren zum Betreiben einer Festoxidbrennstoffzellenanlage, Wärmetauscher für eine Festoxidbrennstoffzellenanlage und Festoxidbrennstoffzellenanlage
DE102014213102A1 (de) Brennstoffzellenvorrichtung
DE102016220371A1 (de) Brennstoffzellenvorrichtung und Verfahren zur Herstellung einer Brennstoffzellenvorrichtung
DE102019206701A1 (de) Brennstoffzellenvorrichtung, sowie Verfahren zum Betreiben einer solchen Brennstoffzellenvorrichtung
EP3153464A1 (fr) Réformeur à vapeur destiné à la fabrication d'un gaz de synthèse
AT526077B1 (de) Brennstoffzellensystem, Brennstoffzellenanlage und Verfahren zum Erzeugen von Synthesegas
AT525898B1 (de) Brennstoffzellensystem, Brennstoffzellenanlage und Verfahren zum Erzeugen von Synthesegas
EP1120845A1 (fr) Système de piles à combustible avec dispositif de reformage pour combustibles liquides

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

17P Request for examination filed

Effective date: 20190318

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20200203

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

Owner name: ROBERT BOSCH GMBH

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: 20201202