• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a fuel cell system (1a, 1b) comprising a fuel cell (2) having an anode section (3) and a cathode section (4), an anode gas heat exchanger (5) having a cold side (6) for conducting anode feed gas to the anode section (Fig. 3) and a hot side (7) for heating the anode supply gas by anode exhaust gas from the anode section (3) and / or cathode exhaust gas from the cathode section (4), a cathode gas heat exchanger (8) having a cold side (9) for supplying cathode supply gas to the cathode section (4) and a hot side (10) for heating the cathode supply gas by cathode exhaust gas from the cathode section (4), the hot side (7) of the anode gas heat exchanger (5) and / or the hot side (10) of the cathode gas heat exchanger (8) respectively a catalyst (27, 28). Furthermore, the invention relates to a method for heating a fuel cell system (1a) according to the invention and to the use of a fuel cell system (1a, 1b) according to the invention in a motor vehicle (40).
    公开号:AT521065A1
    申请号:T50892/2018
    申请日:2018-10-15
    公开日:2019-10-15
    发明作者:Bernd Reiter Bsc；Ing Jörg Mathé Dipl；Vincent Lawlor Dr；Ing Dipl (Fh) Michael Reissig
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    Fuel cell system and method for heating a fuel cell system
    The present invention relates to a fuel cell system, particularly to an SOFC system, comprising a fuel cell having an anode section and a cathode section, an anode gas heat exchanger having a cold side for conducting anode feed gas to the anode section, and a hot side for heating the anode feed gas by anode exhaust gas from the anode section and / or or cathode exhaust gas from the cathode section, a
    Cathode gas heat exchanger with a cold side for feeding
    Cathode feed gas to the cathode section and a hot side to heat the cathode feed gas by cathode exhaust gas from the cathode section. The invention further relates to a method for heating a generic fuel cell system and the use of a fuel cell system.
    In the prior art are SOFC systems with one or more
    Fuel cell stack for converting chemical energy into electrical energy known. In such fuel cell systems, it is also known to use a two-stage starting burner for heating the fuel cell system. This is especially necessary with a hydrous fuel such as an ethanol-water mixture. During a heating process, the two chambers of the starting burner are brought in a first step of, for example, air to an operating temperature of the catalytic material provided therein, between the two chambers, a heat exchanger is provided, in which the fuel is evaporated and overheated, before this in the first or from there then into the second chamber is passed. The fuel is then burned catalytically in the first chamber under the supply of air and exits at a temperature of for example 900 ° C from the same. However, since the burned mixture must be used downstream of the first chamber to heat the fuel in the heat exchanger, a temperature of the burned mixture is then only about 600 ° C. Therefore, the second combustion chamber is necessary. In this, the exhaust gas from the first combustion chamber is heated again to the desired 900 ° C, so that all components of the fuel cell system can be brought to operating temperature by emerging from the second combustion chamber mixture.
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    The respective temperature control devices occupy an essential part of the available installation space in the fuel cell system. In mobile applications in particular, it is important to keep them small or to use them as efficiently as possible.
    Object of the present invention is to be as compact as possible
    To provide fuel cell system with satisfactory heating properties. Another object of the invention is to provide an improved method of heating a fuel cell system. Moreover, it is an object to provide a use for a fuel cell system according to the invention.
    The above object is solved by the claims. In particular, the above object is achieved by the fuel cell system according to claim 1, the method according to claim 9 and the use according to claim 10. Further advantages of the invention will become apparent from the dependent claims, the description and the drawings. In this case, features and details that are described in connection with the fuel cell system, of course, also in connection with the method according to the invention, the use according to the invention and in each case vice versa, so with respect to the disclosure of the individual aspects of the invention always reciprocal reference is or can be.
    According to a first aspect of the present invention is a
    Fuel cell system provided. The fuel cell system includes a fuel cell having an anode portion and a cathode portion. The fuel cell system further includes an anode gas heat exchanger having a cold side for conducting anode feed gas to the anode section and a hot side for heating the anode feed gas by anode exhaust gas from the anode section and / or cathode exhaust gas from the cathode section. Moreover, the fuel cell system has a cathode gas heat exchanger having a cold side for supplying cathode supply gas to the cathode portion and a hot side for heating the cathode supply gas by cathode exhaust gas from the cathode portion. According to the invention, the hot side of the anode gas heat exchanger and / or the hot side of the
    Cathode gas heat exchanger in each case a catalyst, in particular an oxidation catalyst, on.
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    That is, according to the invention, the previously known second stage of
    Start burner implemented directly into the hot side of the anode gas heat exchanger and / or the hot side of the cathode gas heat exchanger. On the second stage in the starting burner can be waived accordingly. The starting burner can thus be provided much more compact than previously possible. In various embodiments, could even be completely dispensed with a starting burner. This creates additional space and saves weight while reducing the heating time.
    On a starting burner can be dispensed depending on the fuel used. This is the case, for example, when a purely gaseous fuel or a liquid fuel with a low water content is used. When using the liquid fuel with low water content only a transfer of the liquid fuel is necessary in a gas phase. This can be done, for example, by an existing anyway in the fuel cell evaporator. When using the gaseous fuel directly on the hot side of the anode gas heat exchanger and / or on the hot side of the cathode gas heat exchanger, it may be advantageous to
    Heat exchanger or the catalytic material thereof to bring each to a necessary operating temperature.
    It is understood that the hot side of the anode heat exchanger and / or the hot side of the cathode heat exchanger each comprise a catalyst, that the hot side of the anode heat exchanger has a catalyst and / or the hot side of the cathode heat exchanger has a catalyst. The hot side of the anode heat exchanger and / or the hot side of the cathode heat exchanger are preferably configured such that the sides are each coated with a catalyst. That is, according to this embodiment, the hot side of the anode gas heat exchanger and / or the hot side of the cathode gas heat exchanger may be at least partially catalytically coated. Due to the catalytic coating of the hot side of the anode heat exchanger and / or the hot side of the
    Cathode heat exchangers are basically no new or special components needed. The space required for the anode heat exchanger and / or the cathode heat exchanger is therefore not or hardly affected.
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    For example, the hot side of the anode heat exchanger and / or the hot side of the cathode heat exchanger may be catalytically sintered or catalytically coated by immersion in a catalytic solution.
    According to the invention, fuel can flow directly to the hot side of the
    Anode gas heat exchanger and / or the hot side of the
    Cathode gas heat exchanger to be conducted. Due to the catalytic coating of the heat exchanger itself, the necessary heat is generated for heating the fuel cell system or the desired functional components.
    Including that the anode gas heat exchanger for heating the
    Anodenzuführgases is designed by anode exhaust gas from the anode section and / or cathode exhaust gas from the cathode section, should not be understood that the anode gas heat exchanger for heating the
    Anodenzuführgases is designed exclusively by anode exhaust gas from the anode section and / or cathode exhaust gas from the cathode section. Rather, the Anodenzuführgas should at least by anode exhaust gas from the anode section and / or cathode exhaust gas from the cathode section through the
    Anodengaswärmetauscher be heated. Accordingly, it should not be understood that the cathode gas heat exchanger is configured to heat the cathode supply gas by cathode exhaust gas from the cathode portion, that the cathode gas heat exchanger for heating the
    Kathodenzuführgases exclusively by cathode exhaust gas from the
    Cathode section is configured. Rather, the cathode feed gas should at least be heated by cathode exhaust gas from the cathode section through the cathode gas heat exchanger.
    The fuel cell system is preferably an SOFC system, ie a high-temperature fuel cell system with at least one solid oxide fuel cell.
    In this case, a hot side is to be understood as meaning a side or a region of a heat exchanger which is predominantly hotter than a cold side or a cold region of the same heat exchanger, at least during operation of the fuel cell system. To feed the / 24
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    Anodenzuführgases to the anode section is designed an anode supply gas line.
    According to another embodiment of the present invention, in a fuel cell system, it is possible that the cold side of the anode gas heat exchanger and / or the cold side of the cathode gas heat exchanger each have a catalyst. In particular, the cold side of the anode gas heat exchanger and / or the cold side of the cathode gas heat exchanger are each catalytically coated. Due to the catalytic coating of the cold side of the anode heat exchanger or in that the cold side of the anode heat exchanger has a catalyst, the anode feed gas can already be heated in a particularly space-saving and simple manner. With the aid of a catalyst on the cold side of the cathode heat exchanger then this can be preheated by means of a suitable fuel to a predetermined temperature.
    Furthermore, it is possible that in a fuel cell system according to the invention, the cold side of the anode gas heat exchanger having a reformer for reforming the Anodenzuführgases for the anode section and the hot side of the anode gas heat exchanger has an afterburner for burning anode exhaust and / or cathode exhaust gas, the reformer at least partially directly on Afterburner is arranged. By integrating the reformer and the exhaust gas heat exchanger in the anode gas heat exchanger, the
    Fuel cell system can be provided particularly compact. In addition, thermal interactions can be achieved particularly efficiently and effectively.
    Under the reformer is particularly a reformer for a SOFC system for the production of hydrogen in the fuel cell system or of hydrogen for the anode section of the fuel cell for power generation to understand. The afterburner and the reformer can be arranged at least partially directly next to each other or to each other. For this purpose, the reformer and the afterburner may each be plate-shaped or substantially plate-shaped and sandwiched on each other. It is also possible that the afterburner is at least partially annularly arranged around the reformer. It is also possible that the reformer is arranged at least partially annular around the afterburner. By at least / 24
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    AVL List GmbH section-wise direct contacting between afterburner and reformer, a particularly effective heat transfer or heat exchange between these functional components can be achieved. Accordingly effective, the anode gas heat exchanger can be operated.
    It may be of further advantage if, in a fuel cell system on the hot side of the anode gas heat exchanger, an anode gas heat exchanger has heating means for heating the hot side of the anode gas heat exchanger and / or the hot side of the cathode gas heat exchanger
    Cathode gas heat exchanger heating means for heating the hot side of the cathode gas heat exchanger are arranged. Thereby, the anode gas heat exchanger and / or the cathode gas heat exchanger can be quickly and easily brought to the desired operating temperature without the use of a dedicated start burner. The anode gas heat exchanger heating means and the cathode gas heat exchanger heating means are preferably designed as electrical heating means, in particular in the form of an electrical resistance heater. Advantageously, the anode gas heat exchanger heating means and the cathode gas heat exchanger heating means may also be configured in the form of or as part of an electrically heatable metal catalyst.
    According to a further embodiment variant of the present invention may be arranged in a fuel cell system upstream of the anode gas heat exchanger and / or upstream of the cathode gas heat exchanger, an evaporator to the evaporator of a fuel mixture, wherein the evaporator for supplying the vaporized fuel mixture in fluid communication with the hot side of the anode gas heat exchanger and / or the hot side of the cathode gas heat exchanger is. The evaporator takes over in this case the task of the usual starting burner. The evaporator is preferably configured as the evaporator, which also vaporizes the fuel mixture for a reformer of the fuel cell system. Thus, the fuel cell system can be operated very efficiently in a compact design.
    Furthermore, it is possible that in a fuel cell system according to the present invention, upstream of the hot side of the anode gas heat exchanger and upstream of the hot side of the / 24
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    Cathode gas heat exchanger is a starting burner for supplying a heated starting burner exhaust gas through a first Heizgasleitung to the hot side of the anode gas heat exchanger and a second Heizgasleitung to the hot side of the cathode gas heat exchanger is arranged, wherein the starting burner is designed in one stage with only a single starting burner combustion chamber. As already explained above, can be dispensed with by the catalyst directly in the anode gas heat exchanger and / or directly in the cathode gas heat exchanger to the second stage in the starting burner. As a result, the fuel cell system can be made more compact and energy efficient compared to conventional systems.
    Moreover, in a fuel cell system according to the present invention, it is possible that the start burner combustion chamber has a catalyst. That is, in the starting burner, there is no need for open combustion between a fuel and oxygen. The combustion can be reduced to a catalytic and thus flameless combustion. This allows an even more compact and weight-saving design of the fuel cell system.
    In a fuel cell system according to the invention, it may also be advantageous if the starting burner has a fuel gas inlet and a starting burner output and the starting burner heat exchanger has a cold side and a hot side, wherein the fuel gas inlet is in fluid communication with the cold side of the starting burner heat exchanger and the
    Starting burner output is in fluid communication with the hot side of the starting burner heat exchanger. As a result, a recirculation section is created, via which the starting burner can heat up itself during a starting process of the fuel cell system itself. In other words, a self-recursively heating starting burner can thus be made available. This can be dispensed with additional heating systems or additional heating systems can be correspondingly smaller.
    According to another aspect of the present invention, there is provided a method of heating a fuel cell system as described above. The method comprises the following steps:
    Heating the star burner combustion chamber to a predefinable target temperature or beyond, / 24
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    Supplying fuel to the cold side of the starting burner heat exchanger and from there through a fuel gas supply line and the fuel gas inlet of the starting burner into the starting burner combustion chamber, and
    Supplying starting burner exhaust gas through the hot side of the starting burner heat exchanger to the hot side of the anode gas heat exchanger and / or to the hot side of the cathode gas heat exchanger.
    Thus, a method according to the invention brings the same advantages as have been described in detail with reference to the fuel cell system according to the invention. As part of the process, the starting burner can be recursively and efficiently heated by the recirculated starting burner exhaust gas.
    A use of a fuel cell system according to the invention is advantageously carried out for the provision of electrical energy in a motor vehicle.
    Further, measures improving the invention will become apparent from the following description of various embodiments of the
    Invention, which are shown schematically in the figures. All of the claims, description or figures resulting features and / or advantages, including structural details and spatial arrangements may be essential to the invention both in itself and in the various combinations.
    Each show schematically:
    FIG. 1 is a block diagram for explaining a fuel cell system according to a first embodiment of the present invention;
    FIG. 2 is a detailed view of an anode gas heat exchanger according to an embodiment of the invention;
    FIG. 3 is a block diagram for explaining a fuel cell system according to a second embodiment of the present invention; and FIG
    4 shows a motor vehicle with a fuel cell system according to the invention.
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    Elements with the same function and mode of operation are each provided with the same reference numerals in FIGS.
    FIG. 1 schematically shows a fuel cell system 1a according to a first embodiment. The fuel cell system 1 a has a fuel cell 2 with an anode section 3 and a cathode section 4. Further, the fuel cell system 1a has an anode gas heat exchanger 5 having a cold side 6 for conducting anode supply gas to the anode section 3 and a hot side 7 for heating the anode supply gas by anode exhaust gas from the anode section 3 and / or cathode exhaust gas from the cathode section 4, and a cathode gas heat exchanger 8 having a cold side 9 for supplying cathode supply gas to the cathode section 4 and a hot side 10 for heating the cathode supply gas by cathode exhaust gas from the cathode section 4, on.
    The hot side 7 of the anode gas heat exchanger 5 has a catalytic converter 27. In addition, the hot side 10 of the cathode gas heat exchanger 8 also has a catalytic converter 28. More specifically, the hot side 7 of
    Anode gas heat exchanger 5 and the hot side 10 of the
    Cathode gas heat exchanger 8 each catalytically coated. Likewise, the cold side 6 of the anode gas heat exchanger 5 has a catalyst 29.
    The cold side 6 of the anode gas heat exchanger 5 has a reformer 11 shown in Fig. 2 for reforming the anode supply gas for the anode section 3, and the hot side 7 of the anode gas heat exchanger 5 has an afterburner 12 also shown in Fig. 2 for burning anode exhaust gas and cathode exhaust gas , wherein the reformer 11 is disposed directly on the afterburner 12. Upstream of the anode gas heat exchanger 5, an evaporator 26 for evaporating anode supply gas and supplying the vaporized anode supply gas to the anode gas heat exchanger 5 and the reformer 11 of the anode gas heat exchanger 5, respectively.
    Upstream of the hot side 7 of the anode gas heat exchanger 5 and upstream of the hot side 10 of the cathode gas heat exchanger 8 is a starting burner 15 for supplying a heated starting burner exhaust gas through a first heating gas line 16 to the hot side 7 of the anode gas heat exchanger 5 and / 24
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    AVL List GmbH arranged a second heating gas line 17 to the hot side 10 of the cathode gas heat exchanger 8. The starting burner 15 is designed in one stage with a single starting burner combustion chamber 18. The starting burner combustion chamber 18 also has a catalytic converter 30.
    The starting burner 15 also has a fuel gas inlet 20 and a starting burner outlet 21. The starting burner heat exchanger 22 has a cold side 23 and a hot side 24 with the fuel gas inlet 20 in fluid communication with the cold side 23 of the starting burner heat exchanger 22 and the starting burner outlet 21 in fluid communication with the hot side 24 of the starting burner heat exchanger 22 stands. For supplying fuel from the cold side 23 of the starting burner heat exchanger 22 into the starting burner combustion chamber 18, a fuel gas supply line 25, which can be understood as a recirculation line, is configured on the starting burner 15.
    For supplying a fuel or a fuel mixture to
    Anode section 3, an anode supply gas line 31 is configured. For supplying oxygen or an oxygen-containing fluid such as air to the cathode portion, a cathode supply gas line 32 is configured. The anode supply gas line 31 has a branch line 33 for supplying fuel to the cold side 23 of the start burner heat exchanger 22. The cathode supply gas line 21 has a branch line for supplying oxygen to an oxygen inlet 19 of the starting burner 15 or the starting burner combustion chamber 19.
    In an outlet region of the fuel cell 2, an anode exhaust gas guide portion 35 and a cathode exhaust gas guide portion 36 are configured. The anode exhaust gas guide section is for supplying anode exhaust gas from the anode section 3 to the cold side 6 of the anode gas heat exchanger 5 and to the hot side 7 of the anode gas heat exchanger 5 with the cold side 6 of the anode gas heat exchanger and the hot side 7 of the anode gas heat exchanger 5 in fluid-communicating connection. The cathode exhaust gas guide section 36 is for supplying cathode exhaust gas from the cathode section 4 to the hot side 7 of the anode gas heat exchanger 5 and to the hot side 10 of FIG
    Cathode gas heat exchanger 8 with the hot side 7 of the / 24
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    Anodengaswärmetauschers 5 and the hot side 10 of the
    Cathode gas heat exchanger 8 in fluid-communicating connection.
    The hot side 7 of the anode gas heat exchanger 5 communicates with the evaporator 26 for supplying burnt and / or processed anode exhaust gas and cathode exhaust gas from the anode gas heat exchanger 5 to the evaporator 26 through an exhaust pipe 37 in fluid communicating communication.
    2, the anode gas gas exchanger 5 has a reformer 11 and an afterburner 12, wherein the afterburner 12 is arranged in a ring around the reformer 11 and thereby in direct contact with the reformer 11 is. As shown in FIG. 2, the reformer 11 has a catalyst 29 in the form of an oxidation catalyst. The afterburner 12 also has a catalyst 27 in the form of an oxidation catalyst.
    With reference to FIG. 3, a fuel cell system 1b according to another embodiment will be described below. According to the embodiment shown in FIG. 3, the use of starting burner 15 is dispensed with. Evaporated fuel is supplied to the hot side 7 of the anode gas heat exchanger 5 directly from the evaporator 16. More specifically, the evaporator 26 is for evaporating a fuel mixture upstream of the
    Anodengaswärmetauschers 5 and upstream of the cathode gas heat exchanger 8, wherein the evaporator 26 is for supplying the evaporated fuel mixture in fluid communication with the hot side 7 of the anode gas heat exchanger 5 and the hot side 10 of the cathode gas heat exchanger 8.
    On the hot side 7 of the anode gas heat exchanger 5, an electric anode gas heat exchanger heating means 13 for heating the hot side 7 of the anode gas heat exchanger 5 is arranged. In addition, on the hot side 10 of the cathode gas heat exchanger 8, there is disposed a cathode electric heat exchanger heat picking means 14 for heating the hot side 10 of the cathode gas heat exchanger 8.
    FIG. 4 shows a motor vehicle 40 having a control unit 38, an electric motor 39 and a fuel cell system 1a as shown in FIG
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    AVL List GmbH as intended. More specifically, the fuel cell system 1 a for use as a power source for the electric motor 39 is connected thereto and the controller 38.
    With reference back to FIG. 1, a method for heating the
    Fuel cell system 1a described. For this purpose, in a first step, the star burner combustion chamber 18 is heated with air to a target temperature of about 300 ° C. Subsequently, in a second step, fuel on the cold side 23 of the starting burner heat exchanger 22 and from there by a fuel gas supply line 25 and the fuel gas inlet 20 of the starting burner 15 in the
    Start burner combustion chamber 18 passed. Thereupon, in a third step
    Starting burner exhaust gas is passed through the hot side 24 of the starting burner heat exchanger 22 to the hot side 7 of the anode gas heat exchanger 5 and to the hot side 10 of the cathode gas heat exchanger 8.
    The invention leaves next to the illustrated embodiments more
    Design principles. That is, the invention should not be considered limited to the embodiments explained with reference to the figures. Thus, the reformer 11 and the afterburner 12 may for example also be designed plate-shaped. In addition, it is possible that in one embodiment of the fuel cell system 1 b without starting burner 15, the fuel is not through the
    Evaporator 26 upstream of the reformer 11, but is vaporized by a separate evaporator. When using an already gaseous fuel can of course be dispensed with the evaporation of the fuel.
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    LIST OF REFERENCE NUMBERS
    The fuel cell system
    fuel cell
    anode section
    cathode portion
    Anode gas heat exchanger cold side of anode gas heat exchanger hot side of anode gas heat exchanger
    Cathode gas heat exchanger cold side of the cathode gas heat exchanger hot side of the cathode gas heat exchanger
    reformer
    afterburner
    Anode gas heat exchanger heating
    Cathode gas heat exchanger heating
    Start burner first heating gas line second heating gas line
    Start burner combustion chamber
    oxygen inlet
    Fuel gas input
    Start burner output
    Start burner heat exchanger Cold side of start burner heat exchanger Hot side of start burner heat exchanger
    fuel gas supply
    Evaporator
    catalyst
    catalyst
    Catalyst / 24
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    catalyst
    Anodenzuführgasleitung
    Kathodenzuführgasleitung
    branch line
    branch line
    Anodenabgasleitabschnitt
    Kathodenabgasleitabschnitt
    exhaust pipe
    control unit
    electric motor
    Motor vehicle / 24
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    claims
    A fuel cell system (1a, 1b) comprising a fuel cell (2) having an anode section (3) and a cathode section (4), an anode gas heat exchanger (5) having a cold side (6) for conducting anode feed gas to the anode section (3) and a hot side (7) for heating the anode supply gas by anode exhaust gas from the anode section (3) and / or cathode exhaust gas from the cathode section (4), a cathode gas heat exchanger (8) having a cold side (9) for supplying cathode supply gas to the cathode section (4) and a hot side (10) for heating the cathode feed gas by cathode exhaust gas from the cathode section (4), characterized in that the hot side (7) of the anode gas heat exchanger (5) and / or the hot side (10) of the cathode gas heat exchanger (8) respectively a catalyst (27, 28).
    2. Fuel cell system (1a, 1b) according to claim 1, characterized in that the cold side (6) of the anode gas heat exchanger (5) and / or the cold side (9) of the cathode gas heat exchanger (8) each have a catalyst (29).
    A fuel cell system (1a, 1b) according to any one of the preceding claims, characterized in that the cold side (6) of the anode gas heat exchanger (5) comprises a reformer (11) for reforming the anode supply gas for the anode section (3) and the hot side (FIG. 7) of the anode gas heat exchanger (5) has an afterburner (12) for burning anode exhaust gas and / or cathode exhaust gas, wherein the reformer (11) is arranged at least in sections directly on the afterburner (12).
    4. Fuel cell system (1 b) according to one of the preceding claims, characterized in that on the hot side (7) of the anode gas heat exchanger (5) an anode gas heat exchanger heating means (13) for heating the hot side (7) / 24
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    AVL List GmbH of the anode gas heat exchanger (5) and / or on the hot side (10) of the cathode gas heat exchanger (8) a cathode gas heat exchanger heating means (14) for heating the hot side (10) of the cathode gas heat exchanger (8) are arranged.
    5. Fuel cell system (1b) according to one of the preceding claims, characterized in that upstream of the anode gas heat exchanger (5) and / or upstream of the cathode gas heat exchanger (8), an evaporator (26) is arranged to the evaporator of a fuel mixture, wherein the evaporator (26) for Supplying the vaporized fuel mixture in fluid communication with the hot side (7) of the anode gas heat exchanger (5) and / or with the hot side (10) of the cathode gas heat exchanger (8).
    6. Fuel cell system (1a) according to one of the preceding claims, characterized in that upstream of the hot side (7) of the anode gas heat exchanger (5) and upstream of the hot side (10) of the cathode gas heat exchanger (8) a starting burner (15) for supplying a heat Starting burner exhaust gas through a first Heizgasleitung (16) to the hot side (7) of the anode gas heat exchanger (5) and by a second Heizgasleitung (17) to the hot side (10) of the cathode gas heat exchanger (8) is arranged, wherein the starting burner (15) in one stage with a single start burner combustion chamber (18) is designed.
    7. Fuel cell system (1a) according to claim 6, characterized in that the starting burner combustion chamber (18) has a catalyst (30).
    8. Fuel cell system (1a) according to one of claims 6 to 7, characterized in that the starting burner (15) has a fuel gas inlet (20) and a starting burner outlet (21) and the starting burner heat exchanger (22) has a cold side (23) and a hot side (24), wherein the fuel gas inlet (20) is in fluid communication with the cold side (23) of the starting burner heat exchanger (22), and the / 24
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    Start burner output (21) with the hot side (24) of the starting burner heat exchanger (22) is in fluid-communicating connection.
    9. A method for starting a fuel cell system (1a) according to claim 8, comprising the steps:
    Heating the star burner combustion chamber (18) to a predefinable target temperature or beyond,
    - supplying fuel to the cold side (23) of the starting burner heat exchanger (22) and from there through a fuel gas supply line (25) and the fuel gas inlet (20) of the starting burner (15) into the starting burner combustion chamber (18), and
    - Introducing starting burner exhaust gas through the hot side (24) of the starting burner heat exchanger (22) on the hot side (7) of the anode gas heat exchanger (5) and / or on the hot side (10) of the cathode gas heat exchanger (8).
    Use of a fuel cell system (1a, 1b) according to any one of claims 8 to provide electrical energy in a motor vehicle (40).
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    1a
    1.2
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    1b
    2.2
    Fig. 4
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    Search report on A 50892/2018 Austrian
    Patent Office
    Classification of the subject of the application according to IPC:H01M 8/06 (2016.01); H01M 8/1246 (2016.01); H01M 8/04007 (2016.01); H01M 8/04014 (2016.01); H01M 8/04225 (2016.01) Classification of the subject of the application according to CPC:H01M 8/06 (2016.02); H01M 8/1246 (2016.02); H01M 8/04007 (2016.02); H01M 8/04014 (2016.02); H01M 8/04225 (2016.02); H01M 8/04074 (2016.02) Researched test substance (classification):H01M Consulted online database:EPODOC, TXTE, TXTG This search report was prepared for claims 1-10 filed on 15.10.2018. Category*) Name of publication:Country code, publication number, document type (applicant), publication date, text or figure as required Concerningclaim AAA WO 2014117952 A1 (AVL LIST GMBH [AT]) 07 August 2014(07.08.2014) entire documentWO 2004095618 A2 (BAVARIAN MOTORS WERKE AG [DE], LAMPPETER [DE], KÄMMERER JUERGEN [DE], EDLINGER BERNHARD [DE])04. November 2004 (04.11.2004)entire documentJP H05129029 A (MITSUBISHI HEAVY IND LTD) May 25, 1993 (May 25, 1993)entire document Description and claims EPODOC summary [online] [determined on 13.02.2019] determined in: EPOQUE EPODOC database 1-101-101-10 Date of completion of the search: "... , Auditors (in):13.02.2019 page Ί of Ί HUNGER Ursula *> Categories of listed documents: A Publication that defines the general state of the art.X publication of particular importance: the application P document that matters (categories X or Y), but afterSubject matter of this document may not be published as new or on the priority date of the application.innovative activity. E document that is of particular importance (category X), from theY Publication of importance: the subject of the application can not be an "older right" (earlier filing date, howeverBeing regarded as being based on inventive step, if the republished, protection is possible in Austria, novelty would be in questionPublish with one or more other publications).This category is associated with this publication and publication, which is a member of the same patent family.a person skilled in the obvious.
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    权利要求:
    Claims (10)
    [1]
    A fuel cell system (1a, 1b) comprising a fuel cell (2) having an anode section (3) and a cathode section (4), an anode gas heat exchanger (5) having a cold side (6) for conducting anode feed gas to the anode section (3) and a hot side (7) for heating the anode supply gas by anode exhaust gas from the anode section (3) and / or cathode exhaust gas from the cathode section (4), a cathode gas heat exchanger (8) having a cold side (9) for supplying cathode supply gas to the cathode section (4) and a hot side (10) for heating the cathode feed gas by cathode exhaust gas from the cathode section (4), characterized in that the hot side (7) of the anode gas heat exchanger (5) and / or the hot side (10) of the cathode gas heat exchanger (8) respectively a catalyst (27, 28).
    [2]
    2. Fuel cell system (1a, 1b) according to claim 1, characterized in that the cold side (6) of the anode gas heat exchanger (5) and / or the cold side (9) of the cathode gas heat exchanger (8) each have a catalyst (29).
    [3]
    A fuel cell system (1a, 1b) according to any one of the preceding claims, characterized in that the cold side (6) of the anode gas heat exchanger (5) comprises a reformer (11) for reforming the anode supply gas for the anode section (3) and the hot side (FIG. 7) of the anode gas heat exchanger (5) has an afterburner (12) for burning anode exhaust gas and / or cathode exhaust gas, wherein the reformer (11) is arranged at least in sections directly on the afterburner (12).
    [4]
    4. Fuel cell system (1b) according to one of the preceding claims, characterized in that on the hot side (7) of the anode gas heat exchanger (5) an anode gas heat exchanger heating means (13) for heating the hot side (7)
    22/24 [LAST REQUESTED]
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    AVL List GmbH of the anode gas heat exchanger (5) and / or on the hot side (10) of the cathode gas heat exchanger (8) a cathode gas heat exchanger heating means (14) for heating the hot side (10) of the cathode gas heat exchanger (8) are arranged.
    [5]
    5. Fuel cell system (1b) according to one of the preceding claims, characterized in that upstream of the anode gas heat exchanger (5) and / or upstream of the cathode gas heat exchanger (8), an evaporator (26) is arranged to the evaporator of a fuel mixture, wherein the evaporator (26) for Supplying the vaporized fuel mixture in fluid communication with the hot side (7) of the anode gas heat exchanger (5) and / or with the hot side (10) of the cathode gas heat exchanger (8).
    [6]
    6. Fuel cell system (1a) according to one of the preceding claims, characterized in that upstream of the hot side (7) of the anode gas heat exchanger (5) and upstream of the hot side (10) of the cathode gas heat exchanger (8) a starting burner (15) for supplying a heat Starting burner exhaust gas through a first heating gas line (16) to the hot side (7) of the anode gas heat exchanger (5) and by a second Heizgasleitung (17) to the hot side (10) of the cathode gas heat exchanger (8) is arranged, wherein the starting burner (15) in one stage with a single start burner combustion chamber (18) is designed.
    [7]
    7. Fuel cell system (1a) according to claim 6, characterized in that the starting burner combustion chamber (18) has a catalyst (30).
    [8]
    8. Fuel cell system (1a) according to one of claims 6 to 7, characterized in that the starting burner (15) has a fuel gas inlet (20) and a starting burner outlet (21) and the starting burner heat exchanger (22) has a cold side (23) and a hot side (24), wherein the fuel gas inlet (20) is in fluid communication with the cold side (23) of the starting burner heat exchanger (22);
    23/24 [RECENTLY PROVIDED REQUIREMENTS]
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    Start burner output (21) with the hot side (24) of the starting burner heat exchanger (22) is in fluid-communicating connection.
    [9]
    9. A method for starting a fuel cell system (1a) according to claim 8, comprising the steps:
    Heating the star burner combustion chamber (18) to a predefinable target temperature or beyond,
    - supplying fuel to the cold side (23) of the starting burner heat exchanger (22) and from there through a fuel gas supply line (25) and the fuel gas inlet (20) of the starting burner (15) into the starting burner combustion chamber (18), and
    - Introducing starting burner exhaust gas through the hot side (24) of the starting burner heat exchanger (22) on the hot side (7) of the anode gas heat exchanger (5) and / or on the hot side (10) of the cathode gas heat exchanger (8).
    [10]
    10. Use of a fuel cell system (1a, 1b) according to one of the claims
    1 to 8 for providing electrical energy in a motor vehicle (40).
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    同族专利:
    公开号 | 公开日
    AT521064A1|2019-10-15|
    WO2019178628A9|2019-11-14|
    AT521065B1|2020-03-15|
    WO2019178628A1|2019-09-26|
    AT521064B1|2020-03-15|
    DE112019001397A5|2020-12-17|
    DE112019001389A5|2020-11-26|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50230/2018A|AT521064B1|2018-03-19|2018-03-19|Stacked fuel cell system|DE112019001397.1T| DE112019001397A5|2018-03-19|2019-03-19|Fuel cell system and method for heating a fuel cell system|
    PCT/AT2019/060093| WO2019178627A1|2018-03-19|2019-03-19|Fuel cell system and method for heating up a fuel cell system|
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