CN114628727B - Cathode-anode air inlet heat exchange structure of pile end plate - Google Patents
Cathode-anode air inlet heat exchange structure of pile end plate Download PDFInfo
- Publication number
- CN114628727B CN114628727B CN202011451855.8A CN202011451855A CN114628727B CN 114628727 B CN114628727 B CN 114628727B CN 202011451855 A CN202011451855 A CN 202011451855A CN 114628727 B CN114628727 B CN 114628727B
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- cathode
- anode
- end plate
- inlet
- fins
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- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- 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
-
- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04701—Temperature
- H01M8/04708—Temperature of fuel cell reactants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to the field of broad-spectrum reforming fuel cells, in particular to a cathode-anode air inlet heat exchange structure of a galvanic pile end plate, wherein an upper cavity and a lower cavity are arranged in an end plate shell, an anode gas inlet is arranged at one side of the input end of the end plate shell and communicated with the upper cavity, a cathode gas inlet is arranged at the other side of the input end of the end plate shell and communicated with the lower cavity, a bulge is arranged at the output end of the end plate shell, an anode gas outlet is arranged in the bulge and communicated with the upper cavity, a cathode gas outlet is arranged at one side of a bottom plate far from the bulge and communicated with the lower cavity, anode fins are arranged in the upper cavity, anode gas flows into anode fin gaps after being input by the anode gas inlet, cathode fins are arranged in the lower cavity, and cathode gas flows into the cathode fin gaps after being input by the cathode gas inlet. The invention utilizes the heat exchange of the anode gas and the cathode gas to reduce the input temperature of the anode gas.
Description
Technical Field
The invention relates to the field of broad-spectrum reforming fuel cells, in particular to a cathode-anode air inlet heat exchange structure of a pile end plate.
Background
In a broad-spectrum reforming fuel cell system, the reformed gas output by catalytic reforming of a reforming reactor is provided to a cell stack to generate electricity, the temperature of the reformed gas is generally above 200 ℃, the temperature condition of the reformed gas required by the cell stack is lower than 180 ℃ and higher than 140 ℃, the previous cell stack end plate structure is as shown in fig. 9, the reformed gas directly enters the anode of the cell stack, and air directly enters from the cathode, and the service life of the cell stack is seriously affected by the reformed gas at high temperature.
Disclosure of Invention
The invention aims to provide a cathode-anode gas inlet heat exchange structure of a pile end plate, which utilizes high-temperature anode reforming gas to exchange heat with room-temperature cathode gas to reduce the temperature of the anode gas, so that the temperature of the anode gas input into the pile can meet the requirement.
The aim of the invention is realized by the following technical scheme:
the utility model provides a pile end plate cathode anode heat exchange structure that admits air, includes apron, end plate casing and the bottom plate that connects gradually from top to bottom, wherein end plate casing inside is equipped with upper cavity and lower floor's cavity, end plate casing input one side be equipped with the anode gas entry with upper cavity communicates with each other, the opposite side be equipped with the cathode gas entry with lower cavity communicates with each other, end plate casing output is equipped with a bulge, just the bottom plate output side be equipped with a notch with the bulge block, be equipped with the anode gas export in the bulge with upper cavity communicates, the bottom plate is kept away from bulge one side be equipped with the cathode gas export with lower cavity communicates, be equipped with the anode fin in the upper cavity, and the anode gas flows into the anode fin space after being input by the anode gas entry, be equipped with the cathode fin in the lower floor's cavity, and the cathode gas flows into the cathode fin space after being input by the cathode gas entry.
The anode gas inlet is provided with upper inlet spacers which are arranged in a triangular manner and are perpendicular to the anode fins, and the anode gas flows into the anode fin gaps along the upper inlet spacer gaps.
The cathode gas inlet is provided with lower inlet spacers which are arranged in a triangle and are perpendicular to the cathode fins, and the cathode gas flows into the cathode fin gaps along the lower inlet spacer gaps.
The anode fins and the cathode fins are staggered as viewed along the length direction of the end plate housing.
The cover plate, the end plate shell and the bottom plate are welded by brazing, and then are fixedly connected and installed on the electric pile through bolts.
And the outer side of the end plate shell is provided with a mounting protrusion for the bolt to pass through.
The invention has the advantages and positive effects that:
1. the invention utilizes the heat exchange between the high-temperature anode gas and the room-temperature cathode gas to reduce the temperature of the anode gas, so that the temperature of the anode gas input electric pile can meet the requirement, and the service life of the electric pile can be prolonged.
2. The invention realizes the convective heat exchange of anode gas and cathode gas by utilizing the heat conduction effect of the anode fins in the upper cavity and the cathode fins in the lower cavity, and has large heat exchange area and high heat exchange efficiency.
Drawings
Figure 1 is an exploded schematic view of the present invention,
figure 2 is a schematic diagram of a combination of the present invention,
figure 3 is a cross-sectional view of the invention of figure 2,
figure 4 is A-A view of figure 3,
figure 5 is a top view of the upper chamber of figure 3,
figure 6 is a bottom view of the lower chamber of figure 3,
figure 7 is a schematic view of the installation of the present invention-one,
figure 8 is a second schematic installation view of the present invention,
fig. 9 is a schematic view of a prior art stack end plate structure.
Wherein 1 is an end plate housing, 101 is a mounting boss, 2 is a cover plate, 3 is a bottom plate, 4 is an upper layer cavity, 401 is an anode gas inlet, 4011 is an upper inlet spacer, 402 is an anode gas outlet, 403 is a projection, 5 is a lower layer cavity, 501 is a cathode gas inlet, 5011 is a lower inlet spacer, 502 is a cathode gas outlet, 601 is an anode fin, and 602 is a cathode fin.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-8, the invention comprises a cover plate 2, an end plate shell 1 and a bottom plate 3 which are sequentially connected from top to bottom, wherein as shown in fig. 3, the interior of the end plate shell 1 is divided into an upper cavity 4 and a lower cavity 5 by a partition plate, as shown in fig. 6-7, an anode gas inlet 401 is arranged at the upper part of one side of the input end of the end plate shell 1 and is communicated with the upper cavity 4, a cathode gas inlet 501 is arranged at the lower part of the other side of the input end of the end plate shell 1 and is communicated with the lower cavity 5, as shown in fig. 1, a protruding part 403 is arranged at the output end of the end plate shell 1, a notch is arranged at the output side of the bottom plate 3 and is clamped with the protruding part 403 to ensure the sealing of the lower cavity 5, an anode gas outlet 402 is arranged in the protruding part 403 and is communicated with the upper cavity 4, a cathode gas outlet 502 is arranged at one side of the bottom plate 3 far away from the protruding part 403 and is communicated with the lower cavity 5, as shown in fig. 3 to 6, the upper cavity 4 is provided therein with anode fins 601, the lower cavity 5 is provided therein with cathode fins 602, and as shown in fig. 4, the anode fins 601 and the cathode fins 602 are staggered when viewed along the length direction of the end plate housing 1, anode gas flows along the gaps of the anode fins 601 after flowing in from the anode gas inlet 401, cathode gas flows along the gaps of the cathode fins 602 after flowing in from the cathode gas inlet 501, and high-temperature anode gas and room-temperature cathode gas realize heat exchange through the heat conduction of the anode fins 601, the cathode fins 602 and the intermediate separator, the anode gas after heat exchange is output through the anode gas outlet 402 in the protruding part 403, the temperature of anode reformed gas after heat exchange is lower than 180 degrees, the temperature of the cathode gas after heat exchange is increased some but not more than 180 degrees, meets the requirements.
As shown in fig. 3 and 5, the anode gas inlet 401 is provided with an upper inlet spacer 4011 arranged in a triangle and perpendicular to the anode fins 601, and high-temperature anode gas is introduced through the anode gas inlet 401 and flows into the anode fin 601 gaps along the upper inlet spacer 4011 gaps.
As shown in fig. 3 and 6, the cathode gas inlet 501 is provided with a lower inlet spacer 5011 arranged in a triangle and perpendicular to the heat exchange fins 6, and cathode gas at room temperature flows into the cathode fin 602 through the gaps of the lower inlet spacer 5011 after being input from the cathode gas inlet 501.
As shown in fig. 7 to 8, the cover plate 2, the end plate housing 1 and the bottom plate 3 are welded by brazing, and then are fixed and mounted on the electric pile by bolting, and as shown in fig. 1, mounting protrusions 101 through which bolts pass are provided on the outer side of the end plate housing 1.
The working principle of the invention is as follows:
as shown in fig. 9, in the prior art, the reformed gas directly enters the anode of the stack, while the air directly enters from the cathode, and the high temperature reformed gas may seriously affect the life of the stack. The high temperature anode reformed gas temperature range is about 200-250 degrees, the temperature of the gas required to enter by the electric pile is lower than 180 degrees, the air temperature at the cathode inlet is room temperature, and then the anode gas is cooled by heat exchange between the cathode air and the anode reformed gas, so that the temperature of the anode gas is theoretically feasible.
As shown in fig. 1-2 and fig. 7-8, when the invention works, cathode gas enters from the cathode gas inlet 501 and flows into the cathode fins 602 in the lower cavity 5, then flows out from the other ends of the cathode fins 602 and flows into the galvanic pile through the cathode gas outlet 502 on the bottom plate 3, anode gas flows into the anode fins 601 in the upper cavity 4 from the anode gas inlet 401 and flows into the anode gas at high temperature and cathode gas at room temperature, heat exchange is realized through the heat conduction of the anode fins 601, the cathode fins 602 and the middle partition plate, anode gas after heat exchange is then input into the galvanic pile through the anode gas outlet 402 in the protruding part 403, the temperature of the anode reformed gas after heat exchange is lower than 180 degrees, and the temperature of the cathode gas after heat exchange is increased by a little but does not exceed 180 degrees, so as to meet the requirements.
Claims (4)
1. The utility model provides a pile end plate cathode anode heat transfer structure that admits air which characterized in that: the cathode gas inlet (501) is arranged on one side of the input end of the end plate shell (1) and is communicated with the upper cavity (4), the other side of the input end of the end plate shell (1) is provided with the cathode gas inlet (501) and is communicated with the lower cavity (5), the output end of the end plate shell (1) is provided with a protruding part (403), the output side of the bottom plate (3) is provided with a notch which is clamped with the protruding part (403), an anode gas outlet (402) is arranged in the protruding part (403) and is communicated with the upper cavity (4), a cathode gas outlet (502) is arranged on one side of the bottom plate (3) far away from the protruding part (403) and is communicated with the lower cavity (5), anode gas flows into a gap (601) after being input by the anode gas inlet (401), and cathode gas flows into the gap (602) after being input by the cathode gas inlet (501);
an upper inlet spacer (4011) which is arranged in a triangle and is perpendicular to the anode fins (601) is arranged at the anode gas inlet (401), and anode gas flows into the gaps of the anode fins (601) along the gaps of the upper inlet spacer (4011);
the cathode gas inlet (501) is provided with lower inlet spacers (5011) which are arranged in a triangle and are perpendicular to the cathode fins (602), and cathode gas flows into the cathode fin (602) gaps along the lower inlet spacers (5011) gaps.
2. The cathode-anode intake heat exchange structure of a pile end plate according to claim 1, characterized in that: the anode fins (601) and the cathode fins (602) are staggered as viewed along the length direction of the end plate housing (1).
3. The cathode-anode intake heat exchange structure of a pile end plate according to claim 1, characterized in that: the cover plate (2), the end plate shell (1) and the bottom plate (3) are welded by brazing, and then are fixed and installed on the electric pile through bolt connection.
4. A stack end plate cathode-anode intake heat exchange structure according to claim 3, wherein: and a mounting protrusion (101) for the bolt to pass through is arranged on the outer side of the end plate shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011451855.8A CN114628727B (en) | 2020-12-10 | 2020-12-10 | Cathode-anode air inlet heat exchange structure of pile end plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011451855.8A CN114628727B (en) | 2020-12-10 | 2020-12-10 | Cathode-anode air inlet heat exchange structure of pile end plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114628727A CN114628727A (en) | 2022-06-14 |
| CN114628727B true CN114628727B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011451855.8A Active CN114628727B (en) | 2020-12-10 | 2020-12-10 | Cathode-anode air inlet heat exchange structure of pile end plate |
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| Country | Link |
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| CN (1) | CN114628727B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0896828A (en) * | 1994-09-29 | 1996-04-12 | Ishikawajima Harima Heavy Ind Co Ltd | Molten carbonate fuel cell |
| CN101427093A (en) * | 2006-04-24 | 2009-05-06 | 丰田自动车株式会社 | Heat exchanger, heat-exchange reformer, and methods of producing heat-exchanger and heat-exchange reformer |
| CN108767266A (en) * | 2018-06-26 | 2018-11-06 | 李荣旭 | A kind of dual polar plates of proton exchange membrane fuel cell |
| CN111326765A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | High-temperature alcohol fuel cell evaporation heat dissipation device |
| CN111326766A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | Fuel cell system cathode preheating device |
| 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 |
-
2020
- 2020-12-10 CN CN202011451855.8A patent/CN114628727B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0896828A (en) * | 1994-09-29 | 1996-04-12 | Ishikawajima Harima Heavy Ind Co Ltd | Molten carbonate fuel cell |
| CN101427093A (en) * | 2006-04-24 | 2009-05-06 | 丰田自动车株式会社 | Heat exchanger, heat-exchange reformer, and methods of producing heat-exchanger and heat-exchange reformer |
| CN108767266A (en) * | 2018-06-26 | 2018-11-06 | 李荣旭 | A kind of dual polar plates of proton exchange membrane fuel cell |
| CN111326765A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | High-temperature alcohol fuel cell evaporation heat dissipation device |
| CN111326766A (en) * | 2018-12-15 | 2020-06-23 | 中国科学院大连化学物理研究所 | Fuel cell system cathode preheating device |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN114628727A (en) | 2022-06-14 |
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