CN115863727B - Cathode gas equipartition system of SOFC pile - Google Patents
Cathode gas equipartition system of SOFC pile Download PDFInfo
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- CN115863727B CN115863727B CN202211591917.4A CN202211591917A CN115863727B CN 115863727 B CN115863727 B CN 115863727B CN 202211591917 A CN202211591917 A CN 202211591917A CN 115863727 B CN115863727 B CN 115863727B
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- cathode gas
- sofc
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- electric pile
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- 238000007789 sealing Methods 0.000 claims description 21
- 230000008676 import Effects 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 10
- 238000009827 uniform distribution Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
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- Fuel Cell (AREA)
Abstract
The invention relates to a cathode gas equipartition system of an SOFC electric pile, which comprises a plurality of SOFC electric pile units, wherein the SOFC electric pile is arranged in a system shell, an anode gas inlet, an anode gas outlet, a cathode gas inlet and a cathode gas outlet are arranged on the system shell, wherein a diffuser is arranged at the cathode gas inlet and is connected with a guide plate, the diffuser is in a horn shape, a plurality of through holes are arranged on the guide plate, cathode gas flows through the guide plate, and is effectively diffused in the system shell through the diffuser, so that the cathode gas uniformly circulates in the SOFC electric pile, and the service life and the output power of the electric pile are improved.
Description
Technical Field
The invention relates to the technical field of solid oxide fuel cells, in particular to a cathode gas equipartition system of an SOFC (solid oxide fuel cell) stack.
Background
A solid oxide fuel cell, abbreviated as SOFC, is a power generation device for converting chemical energy stored in fuel and oxidant into electric energy under medium and high temperature conditions, and is generally composed of a plurality of cell units, each cell unit including two electrodes, namely an anode and a cathode, which are separated by an electrolyte element and assembled in series with each other to form a solid oxide fuel cell stack, wherein the cathode open structure is a novel efficient stack structure, that is, a cathode gas flow channel of each cell extends through the whole stack, so that cathode gas can flow from outside the stack to the other side, the cathode gas flowing into the SOFC stack is relatively concentrated, and the cathode gas is unevenly distributed among the cell sheets, resulting in affecting the life and output power of the SOFC stack.
Disclosure of Invention
The invention aims to design a cathode gas equipartition system of an SOFC (solid oxide fuel cell) stack so as to solve the technical problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a cathode gas equipartition system of SOFC pile, includes system housing, a plurality of SOFC pile unit, SOFC pile unit sets up the inside of system housing, the one end of system housing is equipped with the cathode gas import, the other end of system housing is equipped with the cathode gas export, the cathode gas import with the cathode gas export intercommunication, still be equipped with anode gas import and anode gas export on the system housing, anode gas import with anode gas export intercommunication, cathode gas import department is equipped with guide plate and diffuser, be equipped with a plurality of through-holes on the guide plate, the guide plate with the diffuser is connected, the diffuser is by drum and loudspeaker form structure integrated into one piece, system housing one end is the plane, the terminal surface of the other end of system housing is the circular arc.
Further, the anode gas inlet and the anode gas outlet are on the same end face.
Further, the SOFC electric pile unit comprises an SOFC electric pile, an anode gas flow distribution plate and a sealing strip, wherein the anode gas flow distribution plate is installed at the bottom of the SOFC electric pile, and the sealing strip is matched with the SOFC electric pile.
Further, the SOFC stack is formed by stacking a plurality of cell sheets, and gaps between adjacent cell sheets form cathode gas flow channels.
Furthermore, the cathode gas equipartition system of the SOFC pile can be suitable for pile modules formed by arranging a plurality of SOFC pile units in the vertical direction.
Furthermore, the cathode gas uniform distribution system of the SOFC pile can be also suitable for pile modules formed by arranging a plurality of SOFC pile units in the horizontal direction.
Further, the cathode gas inlet manifold is further provided, and the cathode gas inlet manifold is communicated with each cathode gas inlet.
Further, the system also comprises an anode gas inlet manifold and an anode gas outlet manifold, wherein the anode gas inlet manifold is communicated with each anode gas inlet, and the anode gas outlet manifold is communicated with the anode gas outlet.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a cathode gas equipartition system of SOFC electric pile, including the system shell, a plurality of SOFC electric pile units, SOFC electric pile unit sets up the inside at the system shell, the one end of system shell is equipped with the cathode gas import, the other end of system shell is equipped with the cathode gas export, cathode gas import and cathode gas export intercommunication, still be equipped with anode gas import and anode gas export on the system shell, anode gas import and anode gas export intercommunication, cathode gas import department is equipped with guide plate and diffuser, be equipped with a plurality of through-holes on the guide plate, guide plate and diffuser are connected, the guide plate can make the air current obtain evenly dispersing, the guide plate diffuser is by drum and loudspeaker form structure integrated into one piece, cathode gas flows into the SOFC electric pile from the guide plate, make the cathode gas effectively diffuse in the inside of system shell through the diffuser, cathode gas evenly flows into the cell, thereby improve the life-span of SOFC electric pile and output guide plate flow into the SOFC electric pile, system shell one end is the plane, the terminal surface of the other end of system shell is the circular arc, cathode gas flows from one end of plane, be favorable to the even circulation in the SOFC electric pile in the electric pile.
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 view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a first embodiment of the present invention;
FIG. 3 is a front view of a first embodiment of the present invention;
FIG. 4 is a bottom view of a first embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a second embodiment of the present invention;
FIG. 6 is a cross-sectional view of a second embodiment of the present invention;
FIG. 7 is a front view of a second embodiment of the present invention;
FIG. 8 is a bottom view of a second embodiment of the present invention;
FIG. 9 is an overall schematic diagram provided by a third embodiment of the present invention;
FIG. 10 is a front view of a third embodiment of the present invention;
Fig. 11 is a bottom view of a third embodiment of the present invention.
The names of the components marked in the figures are as follows: 1. a system housing; 2. SOFC stacks; 3. a cathode gas inlet; 4. a cathode gas outlet; 5. an anode gas inlet; 6. an anode gas outlet; 7. a deflector; 8. a diffuser; 9. an anode gas flow distribution plate; 10. a sealing strip; 11. a cathode gas inlet manifold; 12. an anode gas inlet manifold; 13. an anode gas outlet header pipe; 14. and a cathode gas outlet header pipe.
Detailed Description
The following description of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one: referring to fig. 1-4, a cathode gas equipartition system of an SOFC electric pile comprises a system shell 1 and an SOFC electric pile unit, wherein the SOFC electric pile unit is arranged in the system shell 1, one end of the system shell 1 is provided with a cathode gas inlet 3, the other end of the system shell 1 is provided with a cathode gas outlet 4, the cathode gas inlet 3 is communicated with the cathode gas outlet 4, an anode gas inlet 5 and an anode gas outlet 6 are also arranged on the system shell 1, the anode gas inlet 5 is communicated with the anode gas outlet 6, a deflector 7 and a diffuser 8 are arranged at the cathode gas inlet 3, a plurality of through holes are arranged on the deflector 7, the deflector 7 is connected with the diffuser 8, the diffuser 8 is integrally formed by a cylinder and a horn-shaped structure, so that the cathode gas distribution is more uniform, the tail end of the diffuser 8 should cover the whole cathode inlet section of the SOFC electric pile 2 as much as possible, and the center of the diffuser 8 is the same as the center of the section of the cathode gas inlet 3 of the electric pile; in order to reduce the flow resistance of cathode gas, one end of the system shell 1 is a plane, the end face of the other end of the system shell 1 is an arc, and the arc is close to one side of the cathode gas outlet 4 of the galvanic pile, so that the induced gas flow is beneficial to the position of the cathode gas outlet; the SOFC electric pile unit comprises an SOFC electric pile 2, an anode gas flow distribution plate 9 and a sealing strip, wherein the anode gas flow distribution plate 9 is arranged at the bottom of the SOFC electric pile 2, and the anode gas flow distribution plate 9 can enable anode gas to uniformly flow into the SOFC electric pile 2; the SOFC stack 2 is formed by stacking a plurality of cell sheets, gaps between adjacent cell sheets form cathode gas flow channels, and cathode gas is fully contacted with the cell sheets in the cathode gas flow channels; the sealing strip 10 is in an inverted U shape, and the sealing strip 10 is arranged in a gap between the system shell 1 and the adjacent cell sheets so as to achieve a sealing effect, and in order to achieve a better sealing effect, the sealing strip 10 is required to isolate cathode inlet gas and cathode outlet gas at the top of the SOFC stack 2 and at two sides perpendicular to the cathode gas inlet direction, so that the cathode gas flows in from a cathode gas runner between the adjacent cell sheets; because the SOFC stack 2 works under the high temperature condition, the sealing strip is made of high temperature resistant material, and the sealing strip needs certain elasticity, so that the sealing strip is in good contact with the surfaces of the SOFC stack 2 and the system shell 1 under the condition from normal temperature to high temperature, a good sealing effect is realized, and the condition that the gas of the cathode gas outlet 6 of the reacted SOFC stack 2 flows back to the cathode gas inlet 3 of the SOFC stack 2 is avoided, so that the mixture of the inlet gas and the outlet gas of the cathode gas is avoided; the anode gas inlet 5 and the anode gas outlet 6 are arranged on the same end face, and anode gas flows into the SOFC stack 2 from the anode gas inlet 5 and flows out from the anode gas outlet 6, so that the cathode gas and the anode gas are prevented from being mixed.
An anode gas inlet manifold 12 is communicated with each anode gas inlet 5, and an anode gas outlet manifold 13 is communicated with an anode gas outlet 6; for the SOFC stacks 2 arranged in the vertical direction and the horizontal direction, anode gas flows into an anode gas inlet header pipe 12, then flows into corresponding SOFC stack units from each anode gas inlet 5, flows out from an anode gas outlet 6 of each SOFC stack unit after the anode gas fully acts, and finally is discharged from an anode gas outlet header pipe 13; the cathode gas flows into the cathode gas inlet header 11, then flows into the corresponding SOFC stack unit from each cathode gas inlet 5, and finally flows into the cathode gas outlet header 14 from the cathode gas outlet 4 and is discharged.
Embodiment two: referring to fig. 5-8, according to the cathode gas sharing system of the SOFC stack in the first embodiment, the cathode gas sharing system of the SOFC stack 2 may be formed by arranging a plurality of SOFC stack units in a vertical direction, and cathode gas flow channels between the cells are always parallel to the cathode gas inlets 3, the embodiment further includes a cathode gas inlet manifold 11, an anode gas inlet manifold 12 and an anode gas outlet manifold 13, the cathode gas inlet manifold 11 is communicated with each cathode gas inlet 3, and the sealing strip is matched with the SOFC stack 2 and the system housing 1, so as to achieve the purpose that the sealing strip is in close contact with the SOFC stack 2 and the system housing 1, thereby achieving a good sealing effect.
Embodiment III: referring to fig. 9-11, according to the cathode gas sharing system of the SOFC stack in the second embodiment, the cathode gas sharing system of the SOFC stack 2 may be formed by arranging a plurality of SOFC stack units in a horizontal direction, and cathode gas flow channels between the cells are always parallel to the cathode gas inlets 3, and the embodiment further includes a cathode gas outlet manifold 14, wherein the cathode gas outlet manifold 14 is communicated with each cathode gas outlet 4, and the sealing strip is matched with the SOFC stack 2 and the system housing 1, so as to achieve the purpose of tightly contacting the sealing strip with the SOFC stack 2 and the system housing 1, thereby playing a good sealing role.
The working principle of the invention is as follows: the invention can be composed of a single SOFC electric pile unit, a plurality of SOFC electric pile units arranged in the vertical direction, and a plurality of SOFC electric pile units arranged in the horizontal direction; firstly, cathode gas flows into a cathode gas inlet 3, cathode gas uniformly flows into an SOFC electric pile 2 through a guide plate 7 and a diffuser 8, anode gas flows into the SOFC electric pile 2 from an anode gas inlet, meanwhile anode gas uniformly flows into the SOFC electric pile 2 through an anode gas distribution plate 9, and after the cathode gas and the anode gas fully react with the SOFC electric pile 2, the cathode gas flows out from a cathode gas outlet 4 and an anode gas outlet 6 respectively, so that the cathode gas uniformly flows through a cathode gas flow channel, and the service life and the output power of the SOFC electric pile 2 are improved.
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.
Claims (7)
1. The utility model provides a system is equally divided to cathode gas of SOFC electric pile, includes system housing (1), a plurality of SOFC electric pile unit, SOFC electric pile unit sets up the inside of system housing (1), the one end of system housing (1) is equipped with cathode gas import (3), the other end of system housing (1) is equipped with cathode gas export (4), cathode gas import (3) with cathode gas export (4) intercommunication, still be equipped with anode gas import (5) and anode gas export (6) on system housing (1), anode gas import (5) with anode gas export (6) intercommunication, its characterized in that: the cathode gas inlet (3) is provided with a guide plate (7) and a diffuser (8), the guide plate (7) is provided with a plurality of through holes, the guide plate (7) is connected with the diffuser (8), the diffuser (8) is formed by a cylinder and a horn-shaped structure in an integrated manner, one end of the system shell (1) where the cathode gas inlet (3) is located is a plane, and the end face of one end of the system shell (1) where the cathode gas outlet (4) is located is an arc.
2. The cathode gas sharing system of the SOFC stack of claim 1, wherein: the anode gas inlet (5) and the anode gas outlet (6) are on the same end face.
3. The cathode gas sharing system of the SOFC stack of claim 2, wherein: the SOFC electric pile unit comprises an SOFC electric pile (2), an anode gas flow distribution plate (9) and a sealing strip (10), wherein the anode gas flow distribution plate (9) is installed at the bottom of the SOFC electric pile (2), and the sealing strip (10) is matched with the SOFC electric pile (2).
4. The cathode gas sharing system of an SOFC stack according to any one of claims 1-2, wherein: the SOFC stack (2) is formed by stacking a plurality of cell sheets, and gaps between adjacent cell sheets form cathode gas flow channels.
5. The cathode gas sharing system of the SOFC stack of claim 4, wherein: the cathode gas uniform distribution system of the SOFC pile (2) can be also applied to pile modules formed by arranging a plurality of SOFC pile units in the vertical direction.
6. The cathode gas sharing system of the SOFC stack of claim 5, wherein: and a cathode gas inlet manifold (11), wherein the cathode gas inlet manifold (11) is communicated with each cathode gas inlet (3).
7. The cathode gas sharing system of the SOFC stack of claim 6, wherein: the device also comprises an anode gas inlet manifold (12) and an anode gas outlet manifold (13), wherein the anode gas inlet manifold (12) is communicated with each anode gas inlet (5), and the anode gas outlet manifold (13) is communicated with the anode gas outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211591917.4A CN115863727B (en) | 2022-12-12 | 2022-12-12 | Cathode gas equipartition system of SOFC pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211591917.4A CN115863727B (en) | 2022-12-12 | 2022-12-12 | Cathode gas equipartition system of SOFC pile |
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| Publication Number | Publication Date |
|---|---|
| CN115863727A CN115863727A (en) | 2023-03-28 |
| CN115863727B true CN115863727B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211591917.4A Active CN115863727B (en) | 2022-12-12 | 2022-12-12 | Cathode gas equipartition system of SOFC pile |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810971A (en) * | 2014-12-29 | 2016-07-27 | 吉世尔（合肥）能源科技有限公司 | Solid oxide fuel cell unit group |
| CN111326762A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | Fuel cell bipolar plate, fuel cell stack and fuel cell system |
| CN214625110U (en) * | 2021-04-09 | 2021-11-05 | 李玉平 | Fuel cell bipolar plate, membrane electrode and fuel cell |
| CN115051013A (en) * | 2022-08-02 | 2022-09-13 | 广东佛燃科技有限公司 | Electric pile shell sealing structure for solid oxide fuel cell system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215118955U (en) * | 2021-04-09 | 2021-12-10 | 李玉平 | Bipolar plate for fuel cell and fuel cell |
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2022
- 2022-12-12 CN CN202211591917.4A patent/CN115863727B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810971A (en) * | 2014-12-29 | 2016-07-27 | 吉世尔（合肥）能源科技有限公司 | Solid oxide fuel cell unit group |
| CN111326762A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | Fuel cell bipolar plate, fuel cell stack and fuel cell system |
| CN214625110U (en) * | 2021-04-09 | 2021-11-05 | 李玉平 | Fuel cell bipolar plate, membrane electrode and fuel cell |
| CN115051013A (en) * | 2022-08-02 | 2022-09-13 | 广东佛燃科技有限公司 | Electric pile shell sealing structure for solid oxide fuel cell system |
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| Publication number | Publication date |
|---|---|
| CN115863727A (en) | 2023-03-28 |
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