CN114628727A - Cathode and anode air inlet heat exchange structure of electric pile end plate - Google Patents
Cathode and anode air inlet heat exchange structure of electric pile end plate Download PDFInfo
- Publication number
- CN114628727A CN114628727A CN202011451855.8A CN202011451855A CN114628727A CN 114628727 A CN114628727 A CN 114628727A CN 202011451855 A CN202011451855 A CN 202011451855A CN 114628727 A CN114628727 A CN 114628727A
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- cathode
- anode
- end plate
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- inlet
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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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- 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 gas inlet and heat exchange structure for cathodes and anodes of a pile end plate, wherein an upper layer cavity and a lower layer cavity are arranged in an end plate shell, an anode gas inlet is arranged on one side of an input end of the end plate shell and communicated with the upper layer cavity, a cathode gas inlet is arranged on the other side of the input end of the end plate shell and communicated with the lower layer cavity, a bulge is arranged at an output end of the end plate shell, an anode gas outlet is arranged in the bulge and communicated with the upper layer cavity, a cathode gas outlet is arranged on one side, away from the bulge, of a bottom plate and communicated with the lower layer cavity, anode fins are arranged in the upper layer cavity, anode gas flows into gaps of the anode fins after being input from the anode gas inlet, cathode fins are arranged in the lower layer cavity, and cathode gas flows into the gaps of the cathode fins after being input from the cathode gas inlet. The invention reduces the input temperature of the anode gas by heat exchange between the anode gas and the cathode gas.
Description
Technical Field
The invention relates to the field of broad-spectrum reforming fuel cells, in particular to a gas inlet and heat exchange structure for cathodes and anodes of a galvanic pile end plate.
Background
In a broad-spectrum reforming fuel cell system, reformed gas output by catalytic reforming in a reforming reactor is supplied to a stack to generate electricity, the temperature of the reformed gas is usually above 200 ℃, the temperature condition required by the reforming gas required by the stack is below 180 ℃ and above 140 ℃, the prior stack end plate structure is as shown in fig. 9, the reformed gas directly enters the anode of the stack, air directly enters from the cathode, and the high-temperature reformed gas seriously affects the life of the stack.
Disclosure of Invention
The invention aims to provide a cathode and anode gas inlet heat exchange structure of a pile end plate, which reduces the temperature of anode gas by utilizing heat exchange between high-temperature anode reformed gas and cathode gas at room temperature, so that the temperature of the anode gas input into a pile meets the requirement.
The purpose of the invention is realized by the following technical scheme:
a cathode and anode air inlet heat exchange structure of a pile end plate comprises a cover plate, an end plate shell and a bottom plate which are sequentially connected from top to bottom, wherein the end plate shell is internally provided with an upper layer cavity and a lower layer cavity, one side of the input end of the end plate shell is provided with an anode gas inlet communicated with the upper layer cavity, the other side of the input end of the end plate shell is provided with a cathode gas inlet communicated with the lower layer cavity, the output end of the end plate shell is provided with a convex part, a notch is arranged on the output side of the bottom plate and is clamped with the convex part, an anode gas outlet is arranged in the convex part and is communicated with the upper-layer cavity, a cathode gas outlet is arranged on one side of the bottom plate far away from the convex part and communicated with the lower-layer cavity, an anode fin is arranged in the upper-layer cavity, and the anode gas flows into the gaps of the anode fins after being input from the anode gas inlet, the cathode fins are arranged in the lower-layer cavity, and the cathode gas flows into the gaps of the cathode fins after being input from the cathode gas inlet.
And the anode gas inlet is provided with upper inlet spacers which are arranged in a triangular shape and are vertical to the anode fins, and the anode gas flows into the gaps of the anode fins along the gaps of the upper inlet spacers.
And the cathode gas inlet is provided with lower inlet spacers which are arranged in a triangular shape and are vertical to the cathode fins, and the cathode gas flows into the gaps of the cathode fins along the gaps of the lower inlet spacers.
The anode fins and cathode fins are arranged in a staggered manner as viewed along the length of the end plate housing.
The cover plate, the end plate shell and the bottom plate are brazed and welded, and then are fixedly connected and installed on the stack through bolts.
And the outer side of the end plate shell is provided with a mounting bulge for the bolt to pass through.
The invention has the advantages and positive effects that:
1. the invention reduces the temperature of the anode gas by utilizing the heat exchange between the high-temperature anode gas and the room-temperature cathode gas, so that the temperature of the anode gas input into the galvanic pile meets the requirement, and the service life of the galvanic pile is prolonged.
2. The invention realizes the heat convection of the anode gas and the cathode gas by utilizing the heat conduction action 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 view of the assembly of the present invention,
figure 3 is a cross-sectional view of the invention of figure 2,
figure 4 is a view a-a of figure 3,
figure 5 is a top plan view of the upper chamber body of figure 3,
figure 6 is a bottom view of the lower chamber body of figure 3,
figure 7 is a first installation schematic of the present invention,
figure 8 is a second installation schematic of the present invention,
fig. 9 is a schematic diagram of a stack end plate structure in the prior art.
Wherein, 1 is the end plate casing, 101 is the installation arch, 2 is the apron, 3 is the bottom plate, 4 is upper chamber body, 401 is the anode gas inlet, 4011 is the upper inlet spacer, 402 is the anode gas export, 403 is the bulge, 5 is lower chamber body, 501 is the cathode gas inlet, 5011 is the lower inlet spacer, 502 is the cathode gas export, 601 is the anode fin, 602 is the cathode fin.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the present invention comprises a cover plate 2, an end plate housing 1 and a bottom plate 3 connected in sequence from top to bottom, wherein as shown in fig. 3, the interior of the end plate housing 1 is divided into an upper cavity 4 and a lower cavity 5 by a partition, as shown in fig. 6 to 7, an anode gas inlet 401 is provided at the upper part of one side of the input end of the end plate housing 1 and is communicated with the upper cavity 4, a cathode gas inlet 501 is provided at the lower part of the other side and is communicated with the lower cavity 5, as shown in fig. 1, the output end of the end plate housing 1 is provided with a protrusion 403, a notch is provided at the output side of the bottom plate 3 and is engaged with the protrusion 403 to ensure the lower cavity 5 to be sealed, an anode gas outlet 402 is provided in the protrusion and is communicated with the upper cavity 4, and a cathode gas outlet 502 is provided at the side of the bottom plate 3 away from the protrusion 403 and is communicated with the lower cavity 5, as shown in fig. 3 to 6, anode fins 601 are arranged in the upper chamber 4, cathode fins 602 are arranged in the lower chamber 5, and as shown in fig. 4, when viewed along the length direction of the end plate housing 1, the anode fins 601 and the cathode fins 602 are arranged in a staggered manner, anode gas flows in from the anode gas inlet 401 and flows along gaps of the anode fins 601, cathode gas flows in from the cathode gas inlet 501 and flows along gaps of the cathode fins 602, heat exchange is realized between high-temperature anode gas and room-temperature cathode gas through the heat conduction effect of the anode fins 601, the cathode fins 602 and the intermediate separator, the heat-exchanged anode gas is output through the anode gas outlet 402 in the protrusion 403, the temperature of the heat-exchanged anode reformed gas is lower than 180 degrees, and the temperature of the cathode gas is raised a little after heat exchange but not higher than 180 degrees, meets the requirements.
As shown in fig. 3 and 5, upper inlet spacers 4011 arranged in a triangular shape and perpendicular to the anode fins 601 are disposed at the anode gas inlet 401, and the anode gas with high temperature is input through the anode gas inlet 401 and flows into the gaps of the anode fins 601 along the gaps of the upper inlet spacers 4011.
As shown in fig. 3 and fig. 6, lower inlet spacers 5011 arranged in a triangular shape and perpendicular to the heat exchange fins 6 are provided at the cathode gas inlet 501, and the cathode gas at room temperature is introduced from the cathode gas inlet 501 and flows into the gaps of the cathode fins 602 along the gaps of the lower inlet spacers 5011.
As shown in fig. 7 to 8, the cover plate 2, the end plate housing 1 and the bottom plate 3 are soldered and welded, and then fixed and mounted on the stack by bolts, and as shown in fig. 1, mounting protrusions 101 for bolts to pass through are arranged 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, and the air directly enters the cathode, the high temperature reformed gas can seriously affect the life of the stack. The temperature range of the high-temperature anode reformed gas is about 200-250 ℃, the temperature of the gas entering the galvanic pile is required to be lower than 180 ℃, the air temperature at the cathode inlet is room temperature, and the temperature of the anode gas is theoretically feasible by heat exchange between the cathode air and the anode reformed gas to cool the anode gas.
As shown in fig. 1-2 and fig. 7-8, when the present 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 then is input into the stack through the cathode gas outlet 502 on the bottom plate 3, anode gas flows from the anode gas inlet 401 and flows along the anode fins 601 in the upper cavity 4, and high-temperature anode gas and room-temperature cathode gas realize heat exchange through the heat conduction action of the anode fins 601, the cathode fins 602, and the intermediate partition plate, and the anode gas after heat exchange is input into the stack through the anode gas outlet 402 in the protruding portion 403, and the temperature of the anode reformed gas after heat exchange is lower than 180 degrees, while the temperature of the cathode gas after heat exchange is raised a little, but not higher than 180 degrees, thereby meeting the requirements.
Claims (6)
1. The utility model provides a galvanic pile end plate negative and positive pole heat transfer structure that admits air which characterized in that: comprises a cover plate (2), an end plate shell (1) and a bottom plate (3) which are sequentially connected from top to bottom, wherein an upper cavity (4) and a lower cavity (5) are arranged in the end plate shell (1), an anode gas inlet (401) is arranged on one side of an input end of the end plate shell (1) and communicated with the upper cavity (4), a cathode gas inlet (501) is arranged on the other side of the input end of the end plate shell (1) and communicated with the lower cavity (5), a bulge (403) is arranged at an output end of the end plate shell (1), a notch is arranged on an output side of the bottom plate (3) and clamped with the bulge (403), an anode gas outlet (402) is arranged in the bulge (403) and 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 bulge (403) and communicated with the lower cavity (5), and an anode fin (601) is arranged in the upper cavity (4), and the anode gas flows into the gaps of the anode fins (601) after being input from the anode gas inlet (401), the cathode fins (602) are arranged in the lower-layer cavity (5), and the cathode gas flows into the gaps of the cathode fins (602) after being input from the cathode gas inlet (501).
2. The cathode and anode air inlet heat exchange structure of the end plate of the galvanic pile as claimed in claim 1, wherein: and an upper inlet spacer (4011) which is arranged in a triangular shape and is vertical to the anode fins (601) is arranged at the anode gas inlet (401), and anode gas flows into gaps of the anode fins (601) along gaps of the upper inlet spacer (4011).
3. The cathode and anode air inlet heat exchange structure of the end plate of the galvanic pile as claimed in claim 1, wherein: and lower inlet spacers (5011) which are arranged in a triangular shape and are perpendicular to the cathode fins (602) are arranged at the cathode gas inlet (501), and the cathode gas flows into the gaps of the cathode fins (602) along the gaps of the lower inlet spacers (5011).
4. The cathode and anode air inlet heat exchange structure of the end plate of the galvanic pile as claimed in claim 1, wherein: the anode fins (601) and the cathode fins (602) are arranged in a staggered manner as viewed along the length of the end plate housing (1).
5. The cathode and anode air inlet heat exchange structure of the end plate of the galvanic pile as claimed in claim 1, wherein: the cover plate (2), the end plate shell (1) and the bottom plate (3) are brazed and welded, and then are fixedly connected and installed on the electric pile through bolts.
6. The cathode and anode air inlet heat exchange structure of the end plate of the galvanic pile as claimed in claim 5, wherein: and a mounting boss (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 true CN114628727A (en) | 2022-06-14 |
| CN114628727B 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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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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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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| CN114628727B (en) | 2023-09-15 |
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