GB2561336A - A high temperature fuel cell system and a sealing apparatus - Google Patents

A high temperature fuel cell system and a sealing apparatus Download PDF

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Publication number
GB2561336A
GB2561336A GB1703371.3A GB201703371A GB2561336A GB 2561336 A GB2561336 A GB 2561336A GB 201703371 A GB201703371 A GB 201703371A GB 2561336 A GB2561336 A GB 2561336A
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GB
United Kingdom
Prior art keywords
fuel cell
sealing
high temperature
sealing plate
supply pipe
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Withdrawn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
GB1703371.3A
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GB201703371D0 (en
Inventor
Hufton Kevin
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.)
LG Fuel Cell Systems Inc
Original Assignee
LG Fuel Cell Systems Inc
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 LG Fuel Cell Systems Inc filed Critical LG Fuel Cell Systems Inc
Priority to GB1703371.3A priority Critical patent/GB2561336A/en
Publication of GB201703371D0 publication Critical patent/GB201703371D0/en
Priority to PCT/US2018/020456 priority patent/WO2018160837A1/en
Publication of GB2561336A publication Critical patent/GB2561336A/en
Withdrawn legal-status Critical Current

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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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
    • H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • 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
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • 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
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
    • H01M8/2475—Enclosures, casings or containers of fuel cell stacks
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
    • 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

Abstract

A high temperature fuel cell comprises a pressure vessel with outer supply and exhaust pipes 26, 28 which houses a containment vessel 10 with inner supply and exhaust pipes 16, 18. A sealing apparatus comprises a sealing plate 30 with a first face 32, an opposing second face 34, and an inner rim 36, wherein the inner rim is provided with a first sealing member 38 and a second sealing member 39. The first sealing member may be a high-temperature o-ring and the second sealing member may be a carbon or graphite o-ring. The sealing plate may also have a protruding foot portion 31. The sealing plate 30 is configured to surround the outer supply pipe 26 and/or the outer exhaust pipe 28 and is secured between an external flange 22, 24 of the outer supply pipe 26 and/or the outer exhaust pipe 28 and an external flange 41, 43 of a connecting pipe 40, 42. The sealing apparatus may further comprise a hole for receiving a connecting member so that it may be located and fixed between a pressure vessel port and a cooperating outer flange of a multi walled pipe.

Description

(54) Title of the Invention: A high temperature fuel cell system and a sealing apparatus Abstract Title: A high temperature fuel cell system and a sealing apparatus (57) A high temperature fuel cell comprises a pressure vessel with outer supply and exhaust pipes 26, 28 which houses a containment vessel 10 with inner supply and exhaust pipes 16, 18. A sealing apparatus comprises a sealing plate 30 with a first face 32, an opposing second face 34, and an inner rim 36, wherein the inner rim is provided with a first sealing member 38 and a second sealing member 39. The first sealing member may be a hightemperature o-ring and the second sealing member may be a carbon or graphite o-ring. The sealing plate may also have a protruding foot portion 31. The sealing plate 30 is configured to surround the outer supply pipe 26 and/or the outer exhaust pipe 28 and is secured between an external flange 22, 24 of the outer supply pipe 26 and/ or the outer exhaust pipe 28 and an external flange 41, of a connecting pipe 40, 42. The sealing apparatus may further comprise a hole for receiving a connecting member so that it may be located and fixed between a pressure vessel port and a cooperating outer flange of a multi walled pipe.
Figure GB2561336A_D0001
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Figure GB2561336A_D0002
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A HIGH TEMPERATURE FUEL CELL SYSTEM AND A SEALING APPARATUS [0001] There is provided a high temperature fuel cell system and a sealing apparatus for. In particular, there is provided a sealing apparatus for sealing around a pipe of a high temperature fuel cell system.
BACKGROUND [0002] Several different types of fuel cells comprise components made from ceramic materials, because ceramic materials are particularly robust during high temperature operation at and above 700°C. Ceramic materials are used in protonic ceramic fuel cells (PCFCs), molten carbonate fuel cells (MCFCs) and solid oxide fuel cells (SOFCs).
[0003] However, the primary disadvantage of current high temperature fuel cell technology is durability. The high temperatures at which these fuel cells operate accelerate component breakdown and corrosion, and therefore lead to decreasing fuel cell life.
[0004] SOFCs are solid-state devices which use an oxygen ion conducting ceramic electrolyte to produce electrical current by transferring oxygen ions from an oxidizing gas stream, such as air or oxidant, at the cathode of the fuel cell to a reducing gas stream, such as hydrogen, methane, natural gas, pentane, ethanol, or methanol, at the anode of the fuel cell. The SOFC, operating at a typical temperature between around 700°C and around 1000°C, enable the transport of negatively charged oxygen ions from the cathode flow stream to the anode flow stream, where the ions combine with either free hydrogen or hydrogen in a hydrocarbon molecule to form water vapour and/or with carbon monoxide to form carbon dioxide. The excess electrons from the negatively charged ion are routed back to the cathode side of the fuel cell through an electrical circuit completed between the anode and the cathode, resulting in an electrical current flow through the circuit.
[0005] In order to increase the available power output of a fuel cell module, individual fuel cells are connected together in series to form a fuel cell bundle. Fuel cell bundles may be connected to adjacent fuel cell bundles to form a fuel cell strip. Fuel cell strips are connected together in parallel to form a fuel cell stack and multiple stacks may be connected together to form a module, to aggregate power output.
[0006] Fuel cells may be bundled together in the form of a plurality of planar elements, planar or cylindrical tubes, or other geometries. Fuel cell stacks, particularly those with planar geometry, often use seals between the electrolyte and the interconnecting surfaces to contain fuel and air at various locations within the fuel cell stack.
[0007] A typical fuel cell module may include a plurality of fuel cell stacks, the stacks may comprise a plurality of fuel cell strips connected in parallel, the fuel cell strips may comprise a number of fuel cell bundles and the bundles may comprise a number of fuel cell tubes or tube sub-assemblies.
[0008] Sealing the fuel cells by providing gas tight seals between the fuel cell stacks and the fuel pipes is essential for operating the fuel cells. This can be challenging in multivessel systems, with double wall supply and exhaust pipes [0009] US9005836 discloses a solid oxide fuel cell stack having a fuel supply pipe and an oxidant supply pipe, wherein the supply pipes are provided through a distribution plate.
BRIEF SUMMARY OF THE DISCLOSURE [0010] In accordance with a first aspect, there is provided a high temperature fuel cell system comprising:
a containment vessel containing at least one fuel cell block, the containment vessel being provided with at least one inner supply pipe and at least one inner exhaust pipe extending therefrom, the at least one inner supply pipe being configured to provide a supply of oxidant or fuel to the at least one fuel cell block and the at least one inner exhaust pipe being configured to received exhaust gases from the at least one fuel cell block;
a pressure vessel for housing the containment vessel, the pressure vessel having at least one outer supply pipe assembly and at least one outer exhaust pipe assembly, the at least one inner supply pipe and the at least one inner exhaust pipe extending therefrom; and a sealing plate, the sealing plate having a first face, an opposing second face, and an inner rim, wherein the inner rim is provided with a first sealing member and a second sealing member; wherein the sealing plate is configured to surround the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly, the first and second sealing members providing a seal around the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly, the sealing plate being secured between an external flange of the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly and an external flange of a connecting pipe.
[0011] The sealing plate may be further provided with a protruding foot.
[0012] The protruding foot may be configured to engage with a connecting pipe portion.
[0013] The first sealing member may be a high temperature o-ring.
[0014] The second sealing member may be a carbon or graphite o-ring.
[0015] The pressure vessel may further include a port interface for receiving the connecting pipe portion.
[0016] The sealing plate may further comprise at least one aperture for receiving a connecting member for fixing between the pressure vessel port interface and a cooperating outer flange of the connecting pipe portion.
[0017] The connecting pipe and outer supply pipe and/or outer exhaust pipe may be arranged in an inline manner.
[0018] The inner supply pipe and the inner supply pipe may be arranged such that they extend from the inner vessel in an inline manner.
[0019] In a further aspect, there is provided a sealing apparatus comprising:
a sealing plate, the sealing plate having a first face, an opposing second face, and an inner rim, wherein the inner rim is provided with a first sealing member and a second sealing member.
[0020] An advantage of the sealing apparatus is that it is configured so that it can be installed externally around a multi walled pipe and a pressure vessel port interface of a high temperature fuel cell system between external flanges to create a seal between the multi walled pipe and the pressure vessel port interface.
[0021] A further advantage is that the sealing plate allows the sealing of the multi walled pipe and the pressure vessel port interface to take place outside of the pressure vessel making it easier to achieve a good seal between pipe sections inside the pressure vessel and pipe sections outside of the pressure vessel.
[0022] The sealing apparatus may be further provided with a protruding foot.
[0023] The protruding foot may be configured to engage with a connecting pipe portion.
[0024] The first sealing member may be a high temperature o-ring.
[0025] The second sealing member may be a carbon or graphite o-ring.
[0026] The sealing plate may further comprise at least one hole for receiving a connecting member so that the sealing plate is configured to be located and fixed between a pressure vessel port and a cooperating outer flange of a multi walled pipe.
BRIEF DESCRIPTION OF THE DRAWINGS [0027] Embodiments of the invention are further described hereinafter with reference to the accompanying drawings, in which:
Figure 1 shows a containment vessel for a high temperature fuel cell;
Figure 2 shows a section view through containment vessel and pressure vessel; Figure 3 shows a section view through the sealing plate;
Figure 4 shows a section view through the outer supply pipe assembly;
Figure 5 shows a section view through the outer exhaust pipe assembly; and
Figure 6 shows a section view through a portion of the containment vessel and pressure vessel.
DETAILED DESCRIPTION [0028] Figure 1 shows a containment vessel 10 for a high temperature fuel cell system. The containment vessel 10 is adapted to contain at least one fuel cell block. A fuel cell block is a block of a plurality of fuel cells. The containment vessel 10 is further provided with at least one inner supply pipe 16 via a port 12 and at least one inner exhaust pipe 18 via a further port 14. The inner supply pipe 16 and inner exhaust pipes 18 supply or exhaust fuel or oxidant to and from the fuel cell block. As can be seen from Figure 1, the supply 16 and exhaust pipes 18 extend from the containment vessel. By extending the supply and exhaust pipes outside of the containment vessel 10, improvements in sealing pressure boundaries between the containment vessel 10 and an outer pressure vessel 20 can be realised.
[0029] The high temperature fuel cell system further includes an outer pressure vessel 20 as shown in Figure 2 for housing the containment vessel 10 and a sealing plate 30 for sealing between the pipes of the containment vessel 10 and the pressure vessel 20. Figure 2 shows a section through a portion of the entire vessel assembly including the interface between the pressure vessel 20 and connecting pipes 40, 42. The pressure vessel 20 includes a port interface 22, 24 for receiving the connecting pipe portion.
[0030] The pressure vessel 20 houses the containment vessel 10 and provides a pressure boundary between the containment vessel 10 and the surrounding space. The pressure vessel 20 provides an inward pressure on the containment vessel 10. The pressure inside the containment vessel 10 is typically around 6 bar, whereas the pressure inside the containment vessel 20 is around 5 bar. The pressure vessel 20 includes at least one outer supply pipe assembly 26 and at least one outer exhaust pipe assembly 28. The outer supply pipe assembly 26 and outer exhaust pipe assembly 28 house the inner supply pipe 16 and inner exhaust pipe 18 to provide a multi-walled supply and exhaust pipe respectively. The at least one inner supply pipe 16 and the at least one inner exhaust pipe 18 extend from the pressure vessel 10.
[0031] A sealing plate 30 is also provided and is shown in Figure 2. The inset shows a more detailed view of the sealing plate 30 installed between the pressure vessel 20 and a connecting exhaust pipe 42. The sealing plate 30 fits around the outer supply pipe assembly 26 and the outer exhaust pipe assembly 28 and is located between a flange 22, 24 of the containment vessel 20 and a corresponding flange 41, 43 of the of the connecting pipes 40, 42. The sealing plate 30 has a first face 32, an opposing second face 34, and an inner rim 36. The sealing plate 30 includes a first sealing member 38 and a second sealing member 39. In use, the first and second sealing members 38, 39 form a pressure boundary between the outer supply pipe assembly 26 or the outer exhaust pipe assembly 28 and an external flange 41, 43 of the connecting pipes 40, 42. Optionally, bellows 27, 29 may be provided along a portion of the outer supply pipe assembly 26 and/or the outer exhaust pipe assembly 28 to provide some degree of tolerance to bending and motion of the outer supply pipe assembly 26 and/or the outer exhaust pipe assembly 28.
[0032] The sealing plate 30 is installed outside of the pressure vessel 20 and is configured to surround the outer supply pipe assembly 26 and/or the outer exhaust pipe assembly 28. In use, the first and second sealing members 38, 39 provide a seal around the outer supply pipe assembly and/or the outer exhaust pipe assembly 26, 28 and the connecting pipes 40, and 42. The sealing plate 30 is secured between the external flanges 41, 43 of the at least one outer supply pipe assembly 26 and/or the at least one outer exhaust pipe assembly 28 and external flanges 22, 24 of a connecting pipe 40, 42.
[0033] The sealing plate 30 is further provided with a protruding foot 31. The protruding foot 31 can be seen more easily in the close up of the sealing plate 30 shown in Figure 3. The protruding foot 31 is provided to wedge into a machined lip of the outer supply or exhaust pipe assembly or a space between the inner pipe and the outer pipe, such that the protruding foot 31 abuts the lip of the pipe. The protruding foot 31 provides a pressure seal between the outer pipe assemblies 40, 42 and the connecting pipes 40, 42.
[0034] The sealing plate 30 includes a first and second sealing member 38, 39 disposed on the inner rim 36 of the sealing plate 30. The first sealing member 38 is a high temperature rated mechanical gasket such as an o-ring. The second sealing member 39 is a mechanical gasket or o-ring comprising carbon or graphite. A benefit of using first and second sealing members 38, 39 having different properties is improved sealing properties between the connecting pipes 40, 42 and the outer pipe assemblies 26, 28.
[0035] The sealing plate 30 is located between the interfacing port 22, 24 such as a flange of the pressure vessel 20 and a cooperating flange 41, 43 of the connecting pipe portion. The sealing plate includes a number of apertures for receiving a connecting member for fixing between the pressure vessel port interface 22, 24 and a cooperating outer flange of the connecting pipe portion 40, 42.
[0036] In one example, the connecting pipe 40, 42 and outer supply pipe and/or outer exhaust pipe 26, 28 are arranged in an inline manner. The benefit of providing the outer supply and exhaust pipes 26, 28 in an inline manner is that this eases alignment issues in manufacturing and building the overall vessel assembly. By directing the outer supply and exhaust pipes 26, 28 and the inner pipes 16, 18 from the vessels in line, assembly of the fuel cell system is simplified and problems associated with sealing pipes are minimised.
[0037] In another example, the inner supply pipe and the inner supply pipe 16, 18 are arranged such that they extend from the inner vessel 10 in an inline manner. Again, this reduces issues with alignment and sealing of the pipes.
[0038] Figures 4 and 5 show a section view through the outer supply pipe assembly 26 and the outer exhaust pipe assembly 28. Bellows 27, 29 are provided to improve mechanical tolerance to movement of the pipes. The bellows are formed from concertina like pipe sections.
[0039] Figure 6 shows a close up cross section view of a portion of the containment vessel and the pressure vessel. Bellows 29 are provided along sections of the outer exhaust pipe assembly.
[0040] It will be clear to a person skilled in the art that features described in relation to any of the embodiments described above can be applicable interchangeably between the different embodiments. The embodiments described above are examples to illustrate various features of the invention [0041] Throughout the description and claims of this specification, the words “comprise” and “contain” and variations of them mean “including but not limited to”, and they are not intended to (and do not) exclude other moieties, additives, components, integers or steps. Throughout the description and claims of this specification, the singular encompasses the plural unless the context otherwise requires. In particular, where the indefinite article is used, the specification is to be understood as contemplating plurality as well as singularity, unless the context requires otherwise.
[0042] Features, integers, characteristics, compounds, chemical moieties or groups described in conjunction with a particular aspect, embodiment or example of the invention are to be understood to be applicable to any other aspect, embodiment or example described herein unless incompatible therewith. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive. The invention is not restricted to the details of any foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
[0043] The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

Claims (15)

1. A high temperature fuel cell system comprising:
a containment vessel containing at least one fuel cell block, the containment vessel being provided with at least one inner supply pipe and at least one inner exhaust pipe extending therefrom, the at least one inner supply pipe being configured to provide a supply of oxidant or fuel to the at least one fuel cell block and the at least one inner exhaust pipe being configured to received exhaust gases from the at least one fuel cell block;
a pressure vessel for housing the containment vessel, the pressure vessel having at least one outer supply pipe assembly and at least one outer exhaust pipe assembly, the at least one inner supply pipe and the at least one inner exhaust pipe extending therefrom; and a sealing plate, the sealing plate having a first face, an opposing second face, and an inner rim, wherein the inner rim is provided with a first sealing member and a second sealing member; wherein the sealing plate is configured to surround the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly, the first and second sealing members providing a seal around the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly, the sealing plate being secured between an external flange of the at least one outer supply pipe assembly and/or the at least one outer exhaust pipe assembly and an external flange of a connecting pipe.
2. A high temperature fuel cell system according to claim 1, wherein the sealing plate is further provided with a protruding foot.
3. A high temperature fuel cell system according to claim 2, wherein the protruding foot is configured to engage with a connecting pipe portion.
4. A high temperature fuel cell system according to any preceding claim, wherein the first sealing member is a high temperature o-ring.
5. A high temperature fuel cell system according to any preceding claim, wherein the second sealing member is a carbon or graphite o-ring.
6. A high temperature fuel cell system according to any preceding claim, wherein the pressure vessel includes a port interface for receiving the connecting pipe portion.
7. A high temperature fuel cell system according to claim 6, wherein the sealing plate further comprises at least one aperture for receiving a connecting member for fixing between the pressure vessel port interface and a cooperating outer flange of the connecting pipe portion.
8. A high temperature fuel cell system according to claim 6 or 7, wherein the connecting pipe and outer supply pipe and/or outer exhaust pipe are arranged in an inline manner.
9. A high temperature fuel cell system according to any preceding claim, wherein the inner supply pipe and the inner supply pipe is arranged such that they extend from the inner vessel in an inline manner.
10. A sealing apparatus comprising:
a sealing plate, the sealing plate having a first face, an opposing second face, and an inner rim, wherein the inner rim is provided with a first sealing member and a second sealing member.
11. A sealing apparatus according to claim 10, further provided with a protruding foot.
12. A sealing apparatus according to claim 11, wherein the protruding foot is configured to engage with a connecting pipe portion.
13. A sealing apparatus according to any one of claims 10 to 12, wherein the first sealing member is a high temperature o-ring.
14. A sealing apparatus according to any one of claims 10 to 13, wherein the second sealing member is a carbon or graphite o-ring.
15. A sealing apparatus according to any one of claims 10 to 14, wherein the sealing plate further comprises at least one hole for receiving a connecting member so that the sealing plate is configured to be located and fixed between a pressure vessel port and a cooperating outer flange of a multi walled pipe.
Intellectual
Property
Office
Application No: GB1703371.3 Examiner: Dr Fiona Rogers
GB1703371.3A 2017-03-02 2017-03-02 A high temperature fuel cell system and a sealing apparatus Withdrawn GB2561336A (en)

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Application Number Priority Date Filing Date Title
GB1703371.3A GB2561336A (en) 2017-03-02 2017-03-02 A high temperature fuel cell system and a sealing apparatus
PCT/US2018/020456 WO2018160837A1 (en) 2017-03-02 2018-03-01 A high temperature fuel cell system and a sealing apparatus

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Application Number Priority Date Filing Date Title
GB1703371.3A GB2561336A (en) 2017-03-02 2017-03-02 A high temperature fuel cell system and a sealing apparatus

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GB201703371D0 GB201703371D0 (en) 2017-04-19
GB2561336A true GB2561336A (en) 2018-10-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112038660B (en) * 2019-06-03 2021-09-28 中国科学院宁波材料技术与工程研究所 Solid oxide fuel cell stack based on symmetrical double-cathode structure

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB1339759A (en) * 1971-12-08 1973-12-05 Mole Richardson England Ltd Tube jointing
DE2933821A1 (en) * 1978-08-21 1980-03-06 Kubota Ltd OVEN DOOR WITH A SEALING DEVICE FOR SEALING THE GAP BETWEEN THE OVEN DOORS AND THE OVEN FRAME
EP0303068A2 (en) * 1987-08-13 1989-02-15 Feodor Burgmann Dichtungswerke GmbH & Co. Flange connection with a multi-layer seal
WO2009136811A1 (en) * 2008-03-07 2009-11-12 Alexandr Pavlovich Epishov Sealing gasket with protection device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005091902A2 (en) * 2004-03-03 2005-10-06 Intellectual Property Holdings, Llc Highly insulated exhaust manifold
GB0506866D0 (en) * 2005-04-05 2005-05-11 Rolls Royce Plc A fuel cell arrangement
EP2860807B1 (en) * 2013-03-26 2016-09-14 Panasonic Intellectual Property Management Co., Ltd. Fuel cell stack
GB201411986D0 (en) * 2014-07-04 2014-08-20 Lg Fuel Cell Systems Inc Fuel cell system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1339759A (en) * 1971-12-08 1973-12-05 Mole Richardson England Ltd Tube jointing
DE2933821A1 (en) * 1978-08-21 1980-03-06 Kubota Ltd OVEN DOOR WITH A SEALING DEVICE FOR SEALING THE GAP BETWEEN THE OVEN DOORS AND THE OVEN FRAME
EP0303068A2 (en) * 1987-08-13 1989-02-15 Feodor Burgmann Dichtungswerke GmbH & Co. Flange connection with a multi-layer seal
WO2009136811A1 (en) * 2008-03-07 2009-11-12 Alexandr Pavlovich Epishov Sealing gasket with protection device

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GB201703371D0 (en) 2017-04-19

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