CN116885234A - Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules - Google Patents
Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules Download PDFInfo
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- CN116885234A CN116885234A CN202310933666.1A CN202310933666A CN116885234A CN 116885234 A CN116885234 A CN 116885234A CN 202310933666 A CN202310933666 A CN 202310933666A CN 116885234 A CN116885234 A CN 116885234A
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- 239000000446 fuel Substances 0.000 title description 6
- 239000007787 solid Substances 0.000 title description 4
- 238000007789 sealing Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000010354 integration Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
Abstract
The invention relates to an air flow distribution base suitable for multiple SOFC electric pile modules, which comprises at least two SOFC electric pile modules and an air flow distribution base body arranged at the bottom end of each SOFC electric pile module, wherein an air flow inlet channel and an air flow outlet channel are arranged in the air flow distribution base body, air flows to each SOFC electric pile of each SOFC electric pile module through the air flow inlet channel for reaction, and the reacted air flows from each SOFC electric pile module to the air flow outlet channel.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an airflow distribution base suitable for a multi-SOFC (solid oxide fuel cell) stack module.
Background
A Solid Oxide Fuel Cell (SOFC) is a power generation device that converts chemical energy in fuel and oxidant into electric energy at a high temperature of 600 ℃ or higher by means of electrochemical reaction. At present, the electric power of a single SOFC electric pile is about 1-5 kW, if a high-power SOFC power generation system with the number of ten kW or higher is to be constructed, a pile module formed by combining a plurality of SOFC electric piles is required to work, and meanwhile, corresponding gas is required to be independently supplied for the cathode and the anode of each SOFC electric pile; however, for SOFC systems with power levels up to hundred kW, multiple stack modules are required to operate in combination. The existing air supply of the SOFC stacks is to independently supply air to each SOFC stack, so that a plurality of sets of air supply devices are required to be configured, and the corresponding system pipeline structure and control system are complicated, so that the cost is high; and each SOFC pile module is independently supplied with air, so that the problems of large difference between air flow and temperature and low integration level are solved.
Disclosure of Invention
The invention aims to design an air flow distribution base suitable for a plurality of SOFC electric pile modules, so that the air flow distribution of each SOFC electric pile module is uniform, the integration level is high, and the cost is low, and the problems of the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the air flow distribution base comprises at least two SOFC electric pile modules and an air flow distribution base body arranged at the bottom end of each SOFC electric pile module, wherein an air flow inlet channel and an air flow outlet channel are arranged in the air flow distribution base body, at least two air flow inlet holes are formed in the air flow inlet channel, the air flow inlet holes correspond to the SOFC electric pile modules, and the air flow inlet holes are communicated with an air inlet interface of each SOFC electric pile module; and the air flow outlet channel is communicated with at least two air flow outlet holes, the air flow outlet holes correspond to the SOFC electric pile module, and the air flow outlet holes are communicated with an air outlet interface of the SOFC electric pile module.
Further, the gas flow inlet channel includes a cathode gas inlet channel and an anode gas inlet channel, and the gas flow outlet channel includes a cathode gas outlet channel and an anode gas outlet channel, the cathode gas inlet channel, the anode gas inlet channel, the cathode gas outlet channel, and the anode gas outlet channel being disposed in parallel.
Further, the air inlet interface comprises a cathode air inlet interface and an anode air inlet interface, and the air outlet interface comprises a cathode air outlet interface and an anode air outlet interface; the gas flow inlet hole on the cathode gas inlet channel is communicated with the cathode gas inlet interface through a cathode gas inlet branch channel, and the gas flow outlet hole on the cathode gas outlet channel is communicated with the cathode gas outlet interface through a cathode gas outlet branch channel; the gas flow inlet holes on the anode gas inlet channel are communicated with the anode gas inlet interface through an anode gas inlet branch channel, and the gas flow outlet holes on the anode gas outlet channel are communicated with the anode gas outlet interface through an anode gas outlet branch channel.
Further, the anode gas inlet branch passage and the anode gas outlet branch passage are respectively communicated with an elbow, and an expansion joint is arranged on the elbow.
Further, the bent pipe is a 90-degree bent pipe, and at least one expansion joint is respectively arranged on the bent pipe in the directions of the two ports.
Further, grooves are formed in the positions, located on the bent pipes, of the airflow distribution base body.
Further, the cathode gas inlet channel, the anode gas inlet channel, the cathode gas outlet channel, the anode gas outlet channel are integrally formed with the gas flow distribution base body.
Further, the cathode gas inlet branch passage, the cathode gas outlet branch passage, the anode gas inlet branch passage, and the anode gas outlet branch passage are integrally formed with the gas flow distribution base body.
Further, the air inlet interface and the air outlet interface are both arranged at the bottom end of the SOFC electric pile module, and sealing elements are arranged at the joints of the four sides of the bottom end of the SOFC electric pile module and the air flow distribution base body.
Compared with the prior art, the invention has the beneficial effects that:
according to the SOFC stack module, the air flow distribution base body is arranged to support the SOFC stack module; an air flow inlet channel and an air flow outlet channel are arranged, the air flow flows to each SOFC stack of each SOFC stack module through the air flow inlet channel respectively and sequentially through the air flow inlet hole and the air inlet interface to react, the reacted air flow flows into the air flow outlet hole from the air outlet interface of each SOFC stack module to flow to the air flow outlet channel, through concentrating the required air inlet passageway and air outlet passageway of each SOFC pile module into the air distribution base body, improved the integrated level and the compactedness of air distribution system by a wide margin, effectively guarantee simultaneously that the air flow that every SOFC pile module distributes and obtain is even, and overall structure is simple, with low costs.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the air flow distributing base body of the present invention;
FIG. 3 is a perspective view of the overall structure of the air flow distribution base body of the present invention;
fig. 4 is an enlarged view at a in fig. 3.
The names of the components marked in the figures are as follows:
1. SOFC electric pile module; 2. an air flow distribution base body; 4. an air flow inlet passage; 5. an air flow outlet passage; 6. a cathode gas inlet passage; 7. an anode gas inlet passage; 8. a cathode gas outlet passage; 9. an anode gas outlet passage; 10. a cathode gas inlet branch passage; 11. a cathode gas outlet branch passage; 12. an anode gas inlet branch passage; 13. an anode gas outlet branch passage; 14. elbow, 15, expansion joint; 16. a groove.
Detailed Description
In order to further describe the technical means and effects adopted by the present invention for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Examples: referring to fig. 1-4, an airflow distribution base suitable for multiple SOFC stack modules includes at least one SOFC stack module 1 and an airflow distribution base body 2 installed at the bottom end of the SOFC stack module 1, where the airflow distribution base body 2 provides airflow for the SOFC stack modules for distribution and also provides physical support for each SOFC stack module. The four sides of the bottom end of the SOFC electric pile module 1 and the joint of the air flow distribution base body 2 are provided with sealing pieces, the sealing pieces are sealing materials such as sealing rings or other sealing glue, the joint between the SOFC electric pile module 1 and the air flow distribution base body 2 is sealed, the air flow in the SOFC electric pile module 1 is prevented from leaking, the heat loss is reduced, and meanwhile the air flow distribution base body 2 is in insulating connection with the SOFC electric pile module 1. An air inflow port channel 4 and an air outflow port channel 5 are arranged in the air distribution base body 2, at least one air inlet hole is formed in the air inflow port channel 4, the air inlet hole is matched with the SOFC electric pile module 1, and the air inlet hole is communicated with an air inlet interface of the SOFC electric pile module 1; the air flow outlet channel 5 is communicated with at least one air flow outlet hole, the air flow outlet hole is matched with the SOFC electric pile module 1, and the air flow outlet hole is communicated with an air outlet interface of the SOFC electric pile module 1. The air flows respectively and sequentially flow through the air inlet channel 4 and the air inlet interface to each SOFC pile of each SOFC pile module 1 to react, and redundant air flows into the air outlet holes from the air outlet interfaces of each SOFC pile module 1 to flow to the air outlet channel 5, and the integration level and the compactness of the air distribution system are greatly improved by concentrating the air inlet channel 4 and the air outlet channel 5 required by each SOFC pile module 1 into the air distribution base body 2, and meanwhile, the air flow obtained by distributing each SOFC pile module 1 is effectively ensured to be uniform, and the whole structure is simple and the cost is low.
The gas flow inlet channel 4 comprises a cathode gas inlet channel 6 and an anode gas inlet channel 7, the gas flow outlet channel 5 comprises a cathode gas outlet channel 8 and an anode gas outlet channel 9, the cathode gas inlet channel 6, the anode gas inlet channel 7, the cathode gas outlet channel 8 and the anode gas outlet channel 9 are arranged in parallel, the SOFC galvanic pile modules 1 are arranged on the gas flow distribution base body 2, the compactness is high, and the SOFC galvanic pile works under the condition of high temperature (about 700 ℃), the gas temperature in the pipeline of the gas supply system is high, the structure is compact to reduce heat loss as much as possible, and the heat exchange is reduced. The cathode gas inlet channel 6, the anode gas inlet channel 7, the cathode gas outlet channel 8, the anode gas outlet channel 9 and the gas flow distribution base body 2 are integrally formed, and the gas flow distribution base has the advantages of simple and compact structure, good heat preservation performance and simple processing. The air inlet interface and the air outlet interface are both arranged at the bottom end of the SOFC stack module 1, the air inlet interface comprises a cathode air inlet interface and an anode air inlet interface, and the air outlet interface comprises a cathode air outlet interface and an anode air outlet interface; the air inlet hole on the cathode gas inlet channel 6 is communicated with the cathode air inlet interface through a cathode gas inlet branch channel 10, and the air outlet hole on the cathode gas outlet channel 8 is communicated with the cathode air outlet interface through a cathode gas outlet branch channel 11; the gas flow inlet holes on the anode gas inlet channel 7 are communicated with the anode gas inlet port through an anode gas inlet branch channel 12, and the gas flow outlet holes on the anode gas outlet channel 9 are communicated with the anode gas outlet port through an anode gas outlet branch channel 13. The cathode gas inlet branch passage 10, the cathode gas outlet branch passage 11, the anode gas inlet branch passage 12, and the anode gas outlet branch passage 13 are integrally formed with the gas flow distribution base body 2.
Referring to fig. 3 and fig. 4, the bent pipe 14 is communicated in each of the anode gas inlet branch passage 12 and the anode gas outlet branch passage 13, the bent pipe 14 on the anode gas inlet branch passage 12 is communicated with the anode gas inlet interface, the bent pipe 14 on the anode gas outlet branch passage 13 is communicated with the anode gas outlet interface, and the bent pipe 14 is provided with the expansion joint 15, since the SOFC stack module 1 works at high temperature, the materials can thermally expand at high temperature, the expansion joint 15 can compensate the dimensional change generated when the materials thermally expand and contract, so that the connection parts of the bent pipe 14 and the anode gas inlet interface and the anode gas outlet interface can not bear extremely large tensile stress when the materials work at high temperature, and rupture or generate gaps, thereby causing anode gas leakage. Further, the bent pipe 14 is a 90-degree bent pipe, at least one expansion joint 15 is arranged on the bent pipe 14 in the directions of the two ports, and the expansion joints 15 in the two directions are arranged, so that the thermal expansion in the two directions can be compensated, the safety is higher, and the applicability is wider. Grooves 16 are formed in the air flow distribution base body 2 and located at the positions of the bent pipes, and the bent pipes 14 can be placed in the grooves 16.
Referring to fig. 1, a schematic diagram of an airflow distribution base body 2 and four SOFC stack modules 1 are used together, wherein each SOFC stack module 1 includes four SOFC stacks and sixteen SOFC stacks in total. Anode gas flows through the anode gas inlet channel 7, respectively and sequentially flows through the anode gas inlet branch channel 12, the elbow pipe 14 and the anode gas inlet interface to the four SOFC stacks of the four SOFC stack modules 1 for reaction, and the anode gas after reaction flows into the elbow pipe 14 from the anode gas outlet interface of the four SOFC stack modules 1 and then flows into the anode gas outlet branch channel 13 through the elbow pipe 14 so as to flow to the anode gas outlet channel 9; the cathode airflow respectively flows to the four SOFC stacks of the four SOFC stack modules 1 through the cathode gas inlet channel 6 in sequence through the cathode gas inlet branch channel 10 and the cathode inlet interface to react with the anode airflow, and the reacted cathode airflow flows into the cathode gas outlet branch channel 11 from the cathode outlet interface of the four SOFC stack modules 1 to flow to the cathode gas outlet channel 8; the cathode and the anode of the four SOFC pile modules 1 can provide uniform airflow supply, and the corresponding airflow mass flow and temperature are high in uniformity, so that the attenuation uniformity of each SOFC pile is good, and the stability of the whole system when the four SOFC pile modules 1 generate power is ensured. It should be noted that, in the figures, the positions of the anode gas inlet channel 7, the anode gas outlet channel 9, the cathode gas inlet channel 6 and the cathode gas outlet channel 8 may be designed according to the SOFC module, for example, the anode gas inlet channel 7 and the anode gas outlet channel 9 are located in the middle of the gas flow distribution base body 2, and the anode gas inlet channel 7 and the anode gas outlet channel 9 are located on two sides of the gas flow distribution base body 2; the branching passages and the port positions of the upper end face of the air flow distribution base body 2 are changed according to the corresponding passage position designs.
The working principle of the embodiment is as follows: during operation, anode gas flows to the SOFC stack of the SOFC stack module 1 through the anode gas inlet channel 7, the anode gas inlet branch channel 12, the elbow 14 and the anode gas inlet interface in sequence respectively to react, and the reacted anode gas flows into the elbow 14 from the anode gas outlet interface of the SOFC stack module 1 and then flows into the anode gas outlet branch channel 13 through the elbow 14 so as to flow to the anode gas outlet channel 9; the cathode gas flows through the cathode gas inlet channel 6, respectively and sequentially flows through the cathode gas inlet branch channel 10 and the cathode inlet interface to the SOFC stack of the SOFC stack module 1 to react with the anode gas, and the reacted cathode gas flows from the cathode outlet interface of the SOFC stack module 1 to the cathode gas outlet branch channel 11, so as to flow to the cathode gas outlet channel 8, and the circulating operation is performed.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. Air current distribution base suitable for many SOFC pile modules, its characterized in that: the SOFC electric pile comprises at least two SOFC electric pile modules (1) and an air flow distribution base body (2) arranged at the bottom end of each SOFC electric pile module (1), wherein an air flow inlet channel (4) and an air flow outlet channel (5) are arranged in each air flow distribution base body (2), at least two air flow inlet holes are formed in each air flow inlet channel (4), the air flow inlet holes correspond to the SOFC electric pile modules (1), and the air flow inlet holes are communicated with an air inlet interface of each SOFC electric pile module (1); at least two air flow outlet holes are communicated with the air flow outlet channel (5), the air flow outlet holes correspond to the SOFC electric pile module (1), and the air flow outlet holes are communicated with an air outlet interface of the SOFC electric pile module (1).
2. The airflow distribution base for a multiple SOFC stack module of claim 1, further comprising: the gas flow inlet channel (4) comprises a cathode gas inlet channel (6) and an anode gas inlet channel (7), the gas flow outlet channel (5) comprises a cathode gas outlet channel (8) and an anode gas outlet channel (9), and the cathode gas inlet channel (6), the anode gas inlet channel (7), the cathode gas outlet channel (8) and the anode gas outlet channel (9) are arranged in parallel.
3. The airflow distribution base for a multiple SOFC stack module of claim 2, further comprising: the air inlet interface comprises a cathode air inlet interface and an anode air inlet interface, and the air outlet interface comprises a cathode air outlet interface and an anode air outlet interface; the gas flow inlet hole on the cathode gas inlet channel (6) is communicated with the cathode gas inlet interface through a cathode gas inlet branch channel (10), and the gas flow outlet hole on the cathode gas outlet channel (8) is communicated with the cathode gas outlet interface through a cathode gas outlet branch channel (11); the gas flow inlet holes on the anode gas inlet channel (7) are communicated with the anode gas inlet interface through an anode gas inlet branch channel (12), and the gas flow outlet holes on the anode gas outlet channel (9) are communicated with the anode gas outlet interface through an anode gas outlet branch channel (13).
4. The airflow distribution base for a multiple SOFC stack module of claim 3, further comprising: the anode gas inlet branch passage (12) and the anode gas outlet branch passage (13) are internally communicated with an elbow pipe (14), and an expansion joint (15) is arranged on the elbow pipe (14).
5. The airflow distribution base for a multiple SOFC stack module of claim 4, further comprising: the elbow pipe (14) is a 90-degree elbow pipe (14), and at least one expansion joint (15) is arranged on the elbow pipe (14) in the directions of two ports respectively.
6. The gas flow distribution base suitable for a multiple SOFC stack module (1) according to claim 5, characterized by: grooves (16) are formed in the positions, located on the bent pipes (14), of the airflow distribution base body (2).
7. The airflow distribution base for a multiple SOFC stack module of claim 3, further comprising: the cathode gas inlet channel (6), the anode gas inlet channel (7), the cathode gas outlet channel (8), the anode gas outlet channel (9) and the gas flow distribution base body (2) are integrally formed.
8. The airflow distribution base for a multiple SOFC stack module of claim 7, further comprising: the cathode gas inlet branch passage (10), the cathode gas outlet branch passage (11), the anode gas inlet branch passage (12) and the anode gas outlet branch passage (13) are integrally formed with the gas flow distribution base body (2).
9. The airflow distribution base for a multiple SOFC stack module of claim 1, further comprising: the SOFC electric pile module comprises an SOFC electric pile module body (2), an air inlet interface and an air outlet interface, wherein the air inlet interface and the air outlet interface are both arranged at the bottom end of the SOFC electric pile module body (1), and sealing elements are arranged at the joints of the four sides of the bottom end of the SOFC electric pile module body (1) and the air flow distribution base body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310933666.1A CN116885234A (en) | 2023-07-27 | 2023-07-27 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310933666.1A CN116885234A (en) | 2023-07-27 | 2023-07-27 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
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| Publication Number | Publication Date |
|---|---|
| CN116885234A true CN116885234A (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310933666.1A Pending CN116885234A (en) | 2023-07-27 | 2023-07-27 | Air flow distribution base suitable for multiple SOFC (solid oxide Fuel cell) pile modules |
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| CN (1) | CN116885234A (en) |
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| CN213401263U (en) * | 2020-09-24 | 2021-06-08 | 宁波拜特新能源技术有限公司 | Gas distribution device for fuel cell test equipment and test equipment |
| KR20210079012A (en) * | 2019-12-19 | 2021-06-29 | 한국에너지기술연구원 | Flat Shape Solid Oxide Fuel cell High TEMPERATURE ELECTROLYSIS UNIT CELL Module and Stack |
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| CN115101772A (en) * | 2022-07-25 | 2022-09-23 | 广东佛燃科技有限公司 | Airflow distribution device for solid oxide fuel cell stack module |
| CN217507403U (en) * | 2022-06-16 | 2022-09-27 | 广东佛燃科技有限公司 | Solid oxide battery air flow distribution device |
| CN219203216U (en) * | 2023-03-31 | 2023-06-16 | 广东佛燃科技有限公司 | Gas distribution plate for galvanic pile |
-
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- 2023-07-27 CN CN202310933666.1A patent/CN116885234A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070248868A1 (en) * | 2006-04-19 | 2007-10-25 | Haltiner Karl J Jr | Solid oxide fuel cell stack having an integral gas distribution manifold |
| US20100151349A1 (en) * | 2008-12-17 | 2010-06-17 | Saint-Gobain Ceramics & Plastics, Inc. | Uniform Gas Distribution Through Channels of SOFC |
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