EP4298685A1 - Déflecteur et ensemble comprenant un tel déflecteur - Google Patents
Déflecteur et ensemble comprenant un tel déflecteurInfo
- Publication number
- EP4298685A1 EP4298685A1 EP22707436.6A EP22707436A EP4298685A1 EP 4298685 A1 EP4298685 A1 EP 4298685A1 EP 22707436 A EP22707436 A EP 22707436A EP 4298685 A1 EP4298685 A1 EP 4298685A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deflector
- evacuation
- deflection element
- inlets
- outlet
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims description 28
- 238000010926 purge Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 31
- 239000000446 fuel Substances 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 239000002360 explosive Substances 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
-
- 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
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/10—Fuel cells in stationary systems, e.g. emergency power source in plant
-
- 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
- Deflector and assembly comprising such a deflector
- the present invention relates, according to a first aspect, to a deflector intended for the evacuation of a gas.
- the invention relates to an assembly comprising such a deflector.
- the assembly is for example an electrical energy supply system.
- the electrical energy supply system comprises for example an enclosure containing a fuel cell for the generation of electrical energy by oxidation-reduction reaction between a first fluid and a second fluid.
- a problem encountered with this type of electrical power supply system is the safety related to the storage and use of the first and/or second fluids. Indeed, it often happens that these fluids are dangerous fluids presenting an explosive risk. This is the case for example with dihydrogen.
- purge pipes fluidically connected to the outside of the enclosure to preserve the safety of persons and facilities present inside the enclosure.
- purge pipes are, for example, connected to outlet openings arranged around the containment.
- ATEX an explosive atmosphere
- the mixture between the air and more particularly the oxygen of the air (combustive), and one of the first and/or second fluids (combustive), in particular dihydrogen is likely to cause an explosion in presence of an ignition source, such as an electrical or mechanical spark or a hot surface.
- an ignition source such as an electrical or mechanical spark or a hot surface.
- An object of the invention is to avoid the creation of zones with an explosive atmosphere around the enclosure and to ensure safety for people and installations during the purging of dangerous gaseous fluids, such as dihydrogen.
- the object of the invention relates to a gas evacuation deflector, the deflector being intended to be fixed on a structure, the deflector comprising:
- a deflection element comprising a lower end, an upper end, and at least one curved portion extending between the lower end and the upper end, the upper end being disposed above the end lower in an elevation direction, the curved portion defining a gas evacuation conduit, the lower end comprising a plurality of inlets for introducing a plurality of gas flows inside the evacuation conduit, the upper end comprising at least a first outlet for evacuating said plurality of gas flows out of the evacuation duct,
- the deflector according to the invention makes it possible to group together all the purge pipes in the same place and to evacuate all the gas flows into the atmosphere at a safe distance from the structure.
- the grid prevents the obstruction of the interior of the exhaust duct by external elements such as leaves or insects, and thus helps to ensure good evacuation of gases.
- the deflector may include one or more of the following features, taken individually or in any technically possible combination:
- the deflection element further comprises a lower portion extending along a first direction disposed between the lower end and the curved portion, and an upper portion extending between the curved portion and the upper end along a second direction , the second direction being different from the first direction;
- the entries of the plurality of entries are arranged on a front face of the lower portion or on a front face of the support device, the front face of the lower portion or the front face of the support device respectively extending in a plane substantially perpendicular to the first direction;
- the first outlet is configured to evacuate the gas flows in an evacuation direction substantially parallel to the direction of elevation;
- the grid extends in a plane forming a non-zero angle with the direction of elevation;
- the deflection element comprises at least one evacuation orifice intended to evacuate a volume of liquid present in the evacuation duct;
- the upper portion comprises a side wall, said side wall defining a second outlet configured to evacuate the plurality of gas flows out of the evacuation duct.
- the object of the invention relates to an assembly comprising:
- a structure defining an enclosure, - an evacuation system for evacuating at least a first fluid from the enclosure, the evacuation system comprising a plurality of purge pipes, each purge pipe extending from a first end towards a second end, the first ends extending into the enclosure, and
- the deflector being fixed to the structure outside the enclosure, the second ends of the purge pipes being connected to the inlets of the plurality of inlets of the deflection element .
- the purge pipes are connected in a sealed manner to the inlets of the plurality of inlets.
- FIG. 1 is a schematic representation of an assembly according to the invention
- FIG. 2 is a cross section of a deflector according to a first embodiment of the invention
- FIG. 3 is a front view of the deflector of Figure 2 at the level of the plurality of entries
- FIG. 4 is a cross section of a deflector according to a second embodiment of the invention.
- Figure 1 shows an assembly 10 according to the invention.
- the assembly 10 comprises a structure 12 defining an enclosure 14, an evacuation system 18 for evacuating at least one first gaseous fluid 20 from the enclosure 14, at least one deflector 22 for evacuating a gas, and particular evacuation of the first fluid 20, fixed on the structure 12.
- the assembly 10 is an electrical power supply system 21.
- the assembly 10 is an electrolyser or any other system which requires the controlled evacuation of a gaseous fluid.
- the power supply system 21 is for example used to supply electrical energy to an isolated region such as an island, a mountainous region, etc.
- the structure 12 is preferably placed or fixed on the ground.
- the structure 12 comprises a plurality of side walls 23 and a roof 25 defining between them the enclosure 14.
- the assembly 10 comprises for example a device 16 able to purge a volume of the first fluid 20.
- the device 16 is for example a device 27 for generating electrical energy comprising a fuel cell 24 for generating electrical energy by oxidation-reduction reaction between the first fluid 20 and a second fluid.
- the first fluid 20 and the second fluid are gases.
- the first fluid 20 is dihydrogen.
- the second fluid is the oxygen present in the air surrounding the structure 12.
- the device 27 for generating electrical energy comprises at least one gas cylinder 26 intended to store the first fluid 20 under pressure.
- the gas cylinder 26 is fluidly connected to the fuel cell 24.
- the gas cylinder 26 of first fluid 20 is arranged outside the enclosure 14.
- the fuel cell 24 is a cell using proton exchange membrane technology (more often referred to by the abbreviation PEM referring to the English name of “Proton Exchange Membrane”).
- PEM proton exchange membrane technology
- All the elements of the device 27 for generating electrical energy described above are arranged in the structure 12 inside the enclosure 14.
- the drain system 18 includes a plurality of drain pipes 28.
- the drain pipes 28 are adapted to drain the first fluid 20 and/or the second fluid from the enclosure 14.
- Each drain pipe 28 extends from a first end 30 to a second end 32.
- the first ends 30 of the purge pipes 28 extend into the enclosure 14 and are connected to the device 27 for generating electrical energy.
- the second ends 32 of the purge pipes 28 are connected to the deflector 22.
- Each purge pipe 28 is for example formed by a stainless steel pipe.
- each purge pipe 28 is connected in a sealed manner to the deflector 22.
- the electrical energy generation device 27 comprises one or more of the following elements (not shown): a converter configured to adjust the voltage generated by the fuel cell 24, a buffer storage power supply configured to storing the energy of the fuel cell 24 which is not consumed by a set of loads connected to the power supply device 21 into electrical energy, an inverter configured to convert a direct voltage supplied by the fuel cell 24 into alternating voltage , and/or a transformer configured to adapt in amplitude the voltage supplied by the fuel cell 24.
- the deflector 22 is preferably attached to the roof 25 of the structure 12.
- the deflector 22 comprises a deflection element 34, a grid 36 attached to the deflection element 34 and a support device 38 attached to the structure 12 and assembled on the deflection element 34.
- the deflection element 34 includes a lower end 40, an upper end 42, and at least one curved portion 44 extending between the lower end 40 and the upper end 42.
- the terms “lower” and “upper” are used with reference to an elevation direction Z, that is to say that the upper end 42 is placed at the above the lower end 40 in the direction of elevation Z.
- the deflection element 34 further comprises a lower portion 46 extending in a first direction P1 disposed between the lower end 40 and the curved portion 44, and an upper portion 48 s extending between the curved portion 44 and the upper end 42 in a second direction P2.
- the second direction P2 is different from the first direction P1.
- first direction P1 and the second direction P2 form between them a non-zero angle a, between 30° and 120°, for example equal to 90° as in the example of FIGS. 2 and 3.
- the second direction P2 is for example substantially parallel to the direction of elevation Z. This makes it possible to evacuate the gas flows towards the sky and to avoid an accumulation of gases in the vicinity of the structure 12.
- the curved portion 44 defines an evacuation conduit 50 for the gas, and more particularly for the first fluid 20 and/or the second fluid present in the purge pipes 28.
- the curved portion 44 makes it possible to run off the rainwater which enters through the upper end 42 inside the evacuation duct. This allows the evacuation of the dust accumulated inside the evacuation duct 50 and a cleaning of the evacuation duct 50.
- the lower end 40 comprises a plurality of inlets 52 to introduce a plurality of gas flows inside the evacuation duct 50.
- the gas flows are gas flows.
- Each inlet 52 comprises for example a threaded connection 54 receiving the second end 32 of each of the purge pipes 28 in a sealed manner.
- the deflection element 34 comprises additional sealing means, such as gaskets (not shown), for sealing and guaranteeing that all the gas leaving each purge pipe 28 is injected into the pipe. evacuation 50 and not outside said conduit 50.
- the inlets 52 are preferably arranged on a front face 56 of the lower portion 46 extending in a plane substantially perpendicular to the first direction P1.
- the inputs 52 are for example aligned as shown in Figure 3.
- the upper end 42 comprises at least a first outlet 58 for evacuating said plurality of gas flows out of the evacuation duct 50.
- the first outlet 58 extends in a plane substantially perpendicular At the direction elevation Z.
- the first outlet 58 is configured to evacuate the gas flows in an evacuation direction E substantially parallel to the elevation direction Z.
- the grid 36 is arranged opposite the first outlet 58.
- the grid 36 preferably covers the first outlet 58, that is to say that to leave the evacuation duct 50, the gas flows pass through the grid 58 by part in part.
- the grid 36 prevents the intrusion inside the evacuation duct 50 of external elements such as leaves, insects etc., likely to obstruct the evacuation duct 50.
- the grid 36 is for example made of metal. It is preferably assembled in a removable manner on the deflection element 34 by means of a fixing system comprising, for example, screws 60. This allows easy dismantling of the grid 36 for cleaning or replacement, for example.
- the grid 36 comprises for example a plurality of bars (not shown) defining openings.
- the size of the openings is chosen to limit the introduction of external elements into the evacuation duct 50.
- the support device 38 is preferably fixed on the roof 25 of the structure 12.
- the support device 38 comprises at least one front face 62 and two side faces 64 connected on either side of the front face 62.
- the device support 38 preferably further comprises a lower face 66 connected to the front face 62 and to the side faces 64, and an upper face 68 extending from the front face 62 facing the lower face 66 on at least a part of the lower face 66.
- the front face 62, the side faces 64, the upper face 68 and the lower face 66 define between them a housing 70 receiving the deflection element 34 and more particularly the lower end 40 of the deflection 34.
- the side faces 64 are preferably assembled on the deflection element 34 by means of screws 72, preferably not entering inside the evacuation duct 50.
- the front face 62 defines a plurality of openings opposite each of the inlets 52 to receive the purge pipes 28.
- the deflection element 34 comprises at least one evacuation orifice 74 intended to evacuate a volume of liquid 76 present in the evacuation conduit 50.
- the liquid 76 is for example rainwater or snow. melt introduced into the evacuation duct 50 through the first outlet 58.
- the evacuation orifice 74 is for example defined by a side wall 78 of the lower portion 46 of the deflection element 34.
- the evacuation orifice 74 can also form an evacuation for the gas flows, for example if the first outlet 58 is obstructed. This provides additional security to ensure the evacuation of gas flows to the outside.
- a second embodiment of the invention will now be described with reference to Figure 4. This embodiment will be described by differences with respect to the first embodiment of Figures 2 and 3.
- the grid 36 extends in a plane forming a non-zero angle with the elevation direction Z, for example between 30° and 85°. This notably prevents the deposition and accumulation of elements on the grid 36 such as snow or leaves. The elements slide by gravity along the grid 36 and do not obstruct the first exit 58.
- a side wall 80 of the upper portion 48 of the deflection element 34 can define a second outlet 82 configured to evacuate the plurality of gas flows out of the evacuation duct 50.
- the second outlet 82 allows gas to be evacuated when the first outlet 58 is obstructed, for example by snow or any other external element such as leaves, etc.
- the gas flows can be evacuated through the evacuation orifice(s) 74 intended to evacuate the liquid (rainwater) present in the evacuation duct 50.
- the grid 36 projects from the side wall 80 of the upper portion 48 above the second outlet 82 in the direction of elevation Z, so as to form an element protection 84 intended to limit the insertion of any external element through the second outlet 82 such as rain, for example.
- the deflector 22 according to the invention is particularly advantageous because it makes it possible to group all the purge pipes 28 in one place and to evacuate all the gas flows into the atmosphere at a good distance from the structure. 12 and to prevent the formation of zones with an explosive atmosphere around the enclosure 14.
- the grid 36 prevents the obstruction of the interior of the evacuation duct 50 and thus makes it possible to ensure good evacuation of the gases .
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2101774A FR3120162B1 (fr) | 2021-02-24 | 2021-02-24 | Déflecteur et ensemble comprenant un tel déflecteur |
| PCT/EP2022/054486 WO2022180075A1 (fr) | 2021-02-24 | 2022-02-23 | Déflecteur et ensemble comprenant un tel déflecteur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4298685A1 true EP4298685A1 (fr) | 2024-01-03 |
Family
ID=75278255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22707436.6A Pending EP4298685A1 (fr) | 2021-02-24 | 2022-02-23 | Déflecteur et ensemble comprenant un tel déflecteur |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4298685A1 (fr) |
| FR (1) | FR3120162B1 (fr) |
| WO (1) | WO2022180075A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003086209A (ja) * | 2001-09-06 | 2003-03-20 | Equos Research Co Ltd | 燃料電池装置 |
| JP6232033B2 (ja) * | 2015-11-24 | 2017-11-15 | 本田技研工業株式会社 | 燃料電池スタック |
| US10177397B2 (en) * | 2016-08-22 | 2019-01-08 | Doosan Fuel Cell Americak, Inc. | Fuel cell manifold assembly including a self-supporting polymer material liner |
| FR3073675B1 (fr) * | 2017-11-14 | 2019-10-04 | Safran Power Units | Systeme de generation d'energie electrique nomade pour un aeronef comprenant une pile a combustible |
-
2021
- 2021-02-24 FR FR2101774A patent/FR3120162B1/fr active Active
-
2022
- 2022-02-23 EP EP22707436.6A patent/EP4298685A1/fr active Pending
- 2022-02-23 WO PCT/EP2022/054486 patent/WO2022180075A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022180075A1 (fr) | 2022-09-01 |
| FR3120162B1 (fr) | 2023-11-10 |
| FR3120162A1 (fr) | 2022-08-26 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20230824 |
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| AK | Designated contracting states |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: POWIDIAN ENERGY |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |