CN111322898A - Hydrogen heat exchanger for hydrogen fuel cell and use method thereof - Google Patents
Hydrogen heat exchanger for hydrogen fuel cell and use method thereof Download PDFInfo
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- CN111322898A CN111322898A CN202010244245.4A CN202010244245A CN111322898A CN 111322898 A CN111322898 A CN 111322898A CN 202010244245 A CN202010244245 A CN 202010244245A CN 111322898 A CN111322898 A CN 111322898A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 239000001257 hydrogen Substances 0.000 title claims abstract description 143
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 143
- 239000000446 fuel Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims abstract description 131
- 239000002826 coolant Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 34
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
-
- 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
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0043—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for fuel cells
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Fuel Cell (AREA)
Abstract
The invention relates to a hydrogen heat exchanger for a hydrogen fuel cell and a using method thereof, the heat exchanger comprises a heat exchange core body, the heat exchange core body comprises a plurality of compressed air flow channels and cooling liquid flow channels which are arranged at intervals, two ends of each compressed air flow channel are respectively connected with a compressed air inlet cavity and a compressed air outlet cavity, the compressed air inlet cavity and the compressed air outlet cavity are respectively connected with a compressed air inlet and a compressed air outlet, the heat exchange core body is positioned at two ends of each cooling liquid flow channel and respectively connected with a cooling liquid inlet cavity and a cooling liquid outlet cavity, the cooling liquid inlet cavity and the cooling liquid outlet cavity are respectively connected with a cooling liquid inlet and a cooling liquid outlet, a hydrogen pipeline is arranged in the cooling liquid outlet cavity, an air inlet and an air outlet of the hydrogen pipeline both penetrate through the cooling liquid outlet cavity to extend to the outer side, the heat exchanger and the using method thereof heat the cooling liquid to heat the hydrogen to, and the structure is compact, the heat exchange efficiency is high, and the use and the installation are convenient.
Description
Technical Field
The invention relates to a heat exchanger, in particular to a hydrogen gas heat exchanger for a hydrogen fuel cell and a using method thereof.
Background
The hydrogen-oxygen fuel cell takes hydrogen as a reducing agent and oxygen as an oxidizing agent, and converts chemical energy into electric energy through combustion reaction of the fuel, and the working principle of the hydrogen-oxygen fuel cell is the same as that of a primary cell;
when the hydrogen-oxygen fuel cell works, hydrogen is supplied to the hydrogen electrode, and oxygen is supplied to the oxygen electrode, and the hydrogen and the oxygen pass through the electrolyte to generate water under the action of the catalyst on the electrodes. At this time, redundant electrons are carried on the hydrogen electrode and are negatively charged, the oxygen electrode is positively charged due to lack of electrons, after a circuit is switched on, the reaction process similar to combustion can be continuously carried out, but a critical step is realized by continuously obtaining hydrogen with proper temperature and pressure;
since the temperature of the hydrogen gas stored in the hydrogen storage tank is 40 deg.c, which is low and cannot satisfy the requirement of the fuel cell for the temperature of the hydrogen gas, the temperature of the hydrogen gas should be raised. Research proves that the utilization rate of the fuel cell is maximized when the temperature of the hydrogen is about 60 ℃, but the hydrogen has flammability, so that the heating mode is not advisable.
Disclosure of Invention
The applicant aims at the defects and researches and improves, and provides a hydrogen gas heat exchanger for a hydrogen fuel cell and a using method thereof.
The technical scheme adopted by the invention is as follows:
the utility model provides a hydrogen heat exchanger for hydrogen fuel cell, includes the heat transfer core, the heat transfer core includes compressed air runner and the coolant liquid runner that a plurality of intervals set up, compressed air inlet chamber and compressed air outlet chamber are connected respectively to compressed air runner both ends, compressed air inlet chamber and compressed air outlet chamber connect compressed air import and compressed air export respectively, the heat transfer core is located coolant liquid runner both ends and connects coolant liquid inlet chamber and coolant liquid outlet chamber respectively, coolant liquid inlet chamber and coolant liquid outlet chamber connect respectively and coolant liquid import and coolant liquid export, coolant liquid outlet intracavity installation hydrogen pipeline, the air inlet and the gas outlet of hydrogen pipeline all pass the coolant liquid outlet chamber and extend to the outside.
As a further improvement of the above technical solution:
the heat exchange core body is positioned between the compressed air flow channel and the cooling liquid flow channel and is separated by a partition plate, and the upper part and the lower part of the heat exchange core body are connected with the upper cover plate and the lower cover plate.
The compressed air flow channel comprises compressed air heat exchange fins and short sealing strips on two sides of the compressed air heat exchange fins, and the cooling liquid flow channel comprises cooling liquid heat exchange fins and long sealing strips on two sides of the cooling liquid heat exchange fins.
The height of compressed air heat exchange fin is 6mm, the height of coolant liquid heat exchange fin is 2.5 mm.
The hydrogen pipeline comprises a U-shaped pipeline, two ends of the U-shaped pipeline are respectively connected with the hydrogen inlet pipe and the hydrogen outlet pipe through two circular arc pipes, and the other ends of the hydrogen inlet pipe and the hydrogen outlet pipe extend to the outer side of the cooling liquid outlet cavity.
A method of using a hydrogen gas heat exchanger for a hydrogen fuel cell, comprising the steps of:
1) heating the condensate: compressed air enters from a compressed air inlet of the compressed air inlet cavity and is sent into the compressed air flow channel, meanwhile, cooling liquid enters from a cooling liquid inlet of the cooling liquid inlet cavity and is sent into the cooling liquid flow channel, the cooling liquid in the cooling liquid flow channel exchanges heat with the compressed air in the compressed air flow channel to heat the cooling liquid, the compressed air after heat exchange and cooling is discharged out of the heat exchanger from a compressed air outlet of the compressed air outlet cavity, and the cooling liquid after heat exchange and heating enters the cooling liquid outlet cavity;
2) heating hydrogen: the coolant liquid after the heating gets into coolant liquid outlet chamber, simultaneously, hydrogen gets into the hydrogen pipeline through the air inlet in the hydrogen storage tank, and send into the hydrogen pipeline and be located coolant liquid outlet chamber internal portion, go out the coolant liquid heat transfer in the oral cavity with the coolant liquid, can heat hydrogen to the temperature that suitable hydrogen fuel cell burning was used, hydrogen after the heating is discharged from the gas outlet of hydrogen pipeline and is sent into hydrogen fuel cell, supply hydrogen fuel cell to use, the coolant liquid export discharge of heat transfer refrigerated coolant liquid from coolant liquid outlet chamber.
As a further improvement of the above technical solution:
the inlet temperature range of the compressed air is 130-150 ℃, and the outlet temperature range of the compressed air is 75-78 ℃.
The liquid inlet temperature range of the cooling liquid is 65-67 ℃, and the liquid outlet temperature range of the cooling liquid is 66-68 ℃.
The inlet temperature range of the hydrogen is 38-42 ℃, and the outlet temperature range of the cooling liquid is 58-62 ℃.
The cooling liquid is a mixture of water and glycol, and the ratio of the water to the glycol is 1: 1.
the invention has the following beneficial effects: the hydrogen heat exchanger for the hydrogen fuel cell heats the cooling liquid through high-temperature compressed air firstly, then the cooling liquid improves the temperature of the hydrogen to about 60 ℃ for the hydrogen fuel cell to use, so that the utilization rate of the hydrogen fuel cell is maximized, the structure is compact, the heat exchange efficiency is high, the use and the installation are convenient, the environment is protected, the safety and the reliability are realized, the temperature is stable, and the energy is saved.
Drawings
Fig. 1 is a schematic structural diagram of a hydrogen gas heat exchanger for a hydrogen fuel cell according to the present invention.
Fig. 2 is a schematic structural diagram of a heat exchange core of a hydrogen heat exchanger for a hydrogen fuel cell provided by the invention.
Fig. 3 is a schematic diagram of the installation of a hydrogen pipeline of the hydrogen heat exchanger for the hydrogen fuel cell provided by the invention.
Fig. 4 is a schematic structural diagram of a hydrogen pipeline of the hydrogen heat exchanger for the hydrogen fuel cell provided by the invention.
In the figure: 1. a heat exchange core body; 101. a partition plate; 102. an upper cover plate; 103. a lower cover plate; 2. a compressed air flow passage; 21. compressed air heat exchange fins; 22. a short seal; 3. a coolant flow passage; 31. cooling fluid heat exchange fins; 32. a long seal; 4. a compressed air inlet chamber; 41. a compressed air inlet; 5. a compressed air outlet chamber; 51. a compressed air outlet; 6. a coolant inlet chamber; 61. a coolant inlet; 7. a coolant outlet chamber; 71. a coolant outlet; 8. a hydrogen gas conduit; 81. a U-shaped conduit; 82. a circular arc tube; 83. a hydrogen inlet pipe; 84. and a hydrogen outlet pipe.
Detailed Description
The following describes a specific embodiment of the present embodiment with reference to the drawings.
As shown in fig. 1 to 4, the hydrogen heat exchanger for a hydrogen fuel cell of this embodiment includes a heat exchange core 1, the heat exchange core 1 includes a plurality of compressed air flow channels 2 and a plurality of cooling liquid flow channels 3 arranged at intervals, the compressed air flow channels 2 and the cooling liquid flow channels 3 are separated by a partition plate 101, the compressed air flow channels 2 each include a compressed air heat exchange fin 21 with a height of 6mm and short seals 22 at two sides of the compressed air heat exchange fin 21, the cooling liquid flow channels 3 each include a cooling liquid heat exchange fin 31 with a height of 2.5mm and long seals 32 at two sides of the cooling liquid heat exchange fin 31, the heat exchange core 1 is connected to an upper cover plate 102 and a lower cover plate 103 at upper and lower portions, two ends of the compressed air flow channels 2 are respectively connected to a compressed air inlet chamber 4 and a compressed air outlet chamber 5, the compressed air inlet chamber 4 and the compressed air outlet chamber 5 are respectively connected to a compressed, the heat exchange core body 1 is positioned at two ends of the cooling liquid flow channel 3 and is respectively connected with a cooling liquid inlet cavity 6 and a cooling liquid outlet cavity 7, the cooling liquid inlet cavity 6 and the cooling liquid outlet cavity 7 are respectively connected with a cooling liquid inlet 61 and a cooling liquid outlet 71, a hydrogen pipeline 8 is arranged in the cooling liquid outlet cavity 7, the hydrogen pipeline 8 comprises a U-shaped pipeline 81, two ends of the U-shaped pipeline 81 are respectively connected with a hydrogen inlet pipe 83 and a hydrogen outlet pipe 84 through two circular arc pipes 82, and the other ends of the hydrogen inlet pipe 83 and the hydrogen outlet pipe 84 extend to the outer side of the cooling liquid outlet cavity 7.
The design of the hydrogen pipeline 8 takes the pressure loss of the hydrogen after passing into consideration, and meets the design pressure drop requirement
Example one
The use method of the hydrogen gas heat exchanger for the hydrogen fuel cell of the embodiment comprises the following steps:
1) heating the condensate: the cooling liquid is a mixture of water and glycol, and the ratio of the water to the glycol is 1: cooling liquid with the temperature of 1 and 65 ℃ enters from a cooling liquid inlet 61 of a cooling liquid inlet cavity 6 and is sent into a cooling liquid flow channel 3, the liquid inlet flow of the cooling liquid is 25L/min, meanwhile, compressed air with the temperature of 140 ℃ enters from a compressed air inlet 41 of a compressed air inlet cavity 4 and is sent into a compressed air flow channel 2, the air inlet flow of the compressed air is 135.8kg/h, the cooling liquid in the cooling liquid flow channel 3 exchanges heat with the compressed air in the compressed air flow channel 2, the cooling liquid is heated, the temperature of the compressed air after heat exchange and cooling is reduced to 76 ℃, the compressed air is discharged from a compressed air outlet 51 of a compressed air outlet cavity 5 out of a heat exchanger, and the cooling liquid after heat exchange and heating enters into a cooling liquid outlet cavity 7;
2) heating hydrogen: the heated cooling liquid enters the cooling liquid outlet cavity 7, meanwhile, hydrogen with the temperature of 40 ℃ in the hydrogen storage tank enters the hydrogen pipeline 8 through the inlet of the hydrogen inlet pipe 83, the gas inlet flow of the hydrogen is 1.03kg/h, the gas inlet pressure is 300psi, the hydrogen enters the hydrogen pipeline 8 and is positioned inside the cooling liquid outlet cavity 7 and exchanges heat with the cooling liquid in the cooling liquid outlet cavity 7, the hydrogen can be heated to 60 ℃, the heated hydrogen is discharged from the gas outlet of the hydrogen pipeline 8 and is sent to the hydrogen fuel cell for use, the temperature of the cooling liquid cooled by heat exchange is reduced to 67 ℃, and the hydrogen is discharged from the cooling liquid outlet 71 of the cooling liquid outlet cavity 7.
Example two
The use method of the hydrogen gas heat exchanger for the hydrogen fuel cell of the embodiment comprises the following steps:
1) heating the condensate: the cooling liquid is a mixture of water and glycol, and the ratio of the water to the glycol is 1: cooling liquid with the temperature of 1 and 64 ℃ enters from a cooling liquid inlet 61 of a cooling liquid inlet cavity 6 and is sent into a cooling liquid flow channel 3, the liquid inlet flow of the cooling liquid is 25L/min, meanwhile, compressed air with the temperature of 130 ℃ enters from a compressed air inlet 41 of a compressed air inlet cavity 4 and is sent into a compressed air flow channel 2, the air inlet flow of the compressed air is 135.8kg/h, the cooling liquid in the cooling liquid flow channel 3 exchanges heat with the compressed air in the compressed air flow channel 2, the cooling liquid is heated, the temperature of the compressed air after heat exchange and cooling is reduced to 75 ℃, the compressed air is discharged from a compressed air outlet 51 of a compressed air outlet cavity 5 out of a heat exchanger, and the cooling liquid after heat exchange and heating enters into a cooling liquid outlet cavity 7;
2) heating hydrogen: the heated cooling liquid enters the cooling liquid outlet cavity 7, meanwhile, hydrogen at 38 ℃ in the hydrogen storage tank enters the hydrogen pipeline 8 through the inlet of the hydrogen inlet pipe 83, the gas inlet flow of the hydrogen is 1.03kg/h, the gas inlet pressure is 300psi, the hydrogen enters the hydrogen pipeline 8 and is positioned inside the cooling liquid outlet cavity 7, the hydrogen exchanges heat with the cooling liquid in the cooling liquid outlet cavity 7, the hydrogen can be heated to 58 ℃, the heated hydrogen is discharged from the gas outlet of the hydrogen pipeline 8 and is sent to the hydrogen fuel cell for use, the temperature of the cooling liquid cooled by heat exchange is reduced to 66 ℃, and the hydrogen is discharged from the cooling liquid outlet 71 of the cooling liquid outlet cavity 7.
EXAMPLE III
The use method of the hydrogen gas heat exchanger for the hydrogen fuel cell of the embodiment comprises the following steps:
1) heating the condensate: the cooling liquid is a mixture of water and glycol, and the ratio of the water to the glycol is 1: cooling liquid with the temperature of 1 and 66 ℃ enters from a cooling liquid inlet 61 of a cooling liquid inlet cavity 6 and is sent into a cooling liquid flow channel 3, the liquid inlet flow of the cooling liquid is 25L/min, meanwhile, compressed air with the temperature of 150 ℃ enters from a compressed air inlet 41 of a compressed air inlet cavity 4 and is sent into a compressed air flow channel 2, the air inlet flow of the compressed air is 135.8kg/h, the cooling liquid in the cooling liquid flow channel 3 exchanges heat with the compressed air in the compressed air flow channel 2, the cooling liquid is heated, the temperature of the compressed air after heat exchange and cooling is reduced to 78 ℃, the compressed air is discharged from a compressed air outlet 51 of a compressed air outlet cavity 5 out of a heat exchanger, and the cooling liquid after heat exchange and heating enters into a cooling liquid outlet cavity 7;
2) heating hydrogen: the heated cooling liquid enters the cooling liquid outlet cavity 7, meanwhile, hydrogen with the temperature of 42 ℃ in the hydrogen storage tank enters the hydrogen pipeline 8 through the inlet of the hydrogen inlet pipe 83, the gas inlet flow of the hydrogen is 1.03kg/h, the gas inlet pressure is 300psi, the hydrogen enters the hydrogen pipeline 8 and is positioned inside the cooling liquid outlet cavity 7 and exchanges heat with the cooling liquid in the cooling liquid outlet cavity 7, the hydrogen can be heated to 62 ℃, the heated hydrogen is discharged from the gas outlet of the hydrogen pipeline 8 and is sent to the hydrogen fuel cell for use, the temperature of the cooling liquid cooled by heat exchange is reduced to 68 ℃, and the hydrogen is discharged from the cooling liquid outlet 71 of the cooling liquid outlet cavity 7.
In the hydrogen heat exchanger for a hydrogen fuel cell of the present embodiment, the formula of the thermodynamic calculation is shown in the following table;
the heat transfer between the compressed air and the coolant is calculated as shown in the following table:
the heat exchange calculation of hydrogen with the coolant is shown in the following table;
the foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (10)
1. A hydrogen gas heat exchanger for a hydrogen fuel cell, characterized in that: comprises a heat exchange core body (1), the heat exchange core body (1) comprises a plurality of compressed air flow channels (2) and cooling liquid flow channels (3) which are arranged at intervals, two ends of the compressed air flow channel (2) are respectively connected with a compressed air inlet cavity (4) and a compressed air outlet cavity (5), the compressed air inlet cavity (4) and the compressed air outlet cavity (5) are respectively connected with a compressed air inlet (41) and a compressed air outlet (51), the heat exchange core body (1) is positioned at two ends of the cooling liquid flow channel (3) and is respectively connected with a cooling liquid inlet cavity (6) and a cooling liquid outlet cavity (7), the cooling liquid inlet cavity (6) and the cooling liquid outlet cavity (7) are respectively connected with a cooling liquid inlet (61) and a cooling liquid outlet (71), and a hydrogen pipeline (8) is arranged in the cooling liquid outlet cavity (7), and both the air inlet and the air outlet of the hydrogen pipeline (8) penetrate through the cooling liquid outlet cavity (7) and extend to the outside.
2. The hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 1, characterized in that: the heat exchange core body (1) is positioned between the compressed air flow channel (2) and the cooling liquid flow channel (3) and is separated by a partition plate (101), and the upper cover plate (102) and the lower cover plate (103) are connected to the upper portion and the lower portion of the heat exchange core body (1).
3. The hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 1 or 2, characterized in that: the compressed air flow channel (2) comprises compressed air heat exchange fins (21) and short sealing strips (22) on two sides of the compressed air heat exchange fins (21), and the cooling liquid flow channel (3) comprises cooling liquid heat exchange fins (31) and long sealing strips (32) on two sides of the cooling liquid heat exchange fins (31).
4. A hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 3, characterized in that: the height of compressed air heat exchange fins (21) is 6mm, and the height of cooling liquid heat exchange fins (31) is 2.5 mm.
5. The hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 1, characterized in that: the hydrogen pipeline (8) comprises a U-shaped pipeline (81), the two ends of the U-shaped pipeline (81) are respectively connected with a hydrogen inlet pipe (83) and a hydrogen outlet pipe (84) through two circular arc pipes (82), and the other ends of the hydrogen inlet pipe (83) and the hydrogen outlet pipe (84) extend to the outer side of the cooling liquid outlet cavity (7).
6. A method of using a hydrogen gas heat exchanger for a hydrogen fuel cell, comprising the steps of:
1) heating the condensate: compressed air enters from a compressed air inlet (41) of a compressed air inlet cavity (4) and is sent into a compressed air flow channel (2), meanwhile, cooling liquid enters from a cooling liquid inlet (6) of a cooling liquid inlet cavity (6) and is sent into a cooling liquid flow channel (3), the cooling liquid in the cooling liquid flow channel (3) exchanges heat with the compressed air in the compressed air flow channel (2), the cooling liquid is heated, the compressed air after heat exchange and cooling is discharged from a heat exchanger from a compressed air outlet (51) of a compressed air outlet cavity (5), and the cooling liquid after heat exchange and heating enters a cooling liquid outlet cavity (7);
2) heating hydrogen: the coolant liquid after the heating gets into coolant liquid outlet chamber (7), simultaneously, hydrogen gets into hydrogen pipeline (8) through the air inlet in the hydrogen storage tank, and send into hydrogen pipeline (8) and be located coolant liquid outlet chamber (7) inside part, with the coolant liquid heat transfer in coolant liquid outlet chamber (7), can heat hydrogen to the temperature that suitable hydrogen fuel cell burning was used, the hydrogen after the heating is discharged from the gas outlet of hydrogen pipeline (8) and is sent into hydrogen fuel cell, hydrogen fuel cell uses, the coolant liquid outlet (71) discharge of coolant liquid outlet chamber (7) is followed to the refrigerated coolant liquid of heat transfer.
7. The use method of a hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 7, characterized in that: the inlet temperature range of the compressed air is 130-150 ℃, and the outlet temperature range of the compressed air is 75-78 ℃.
8. The use method of a hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 7, characterized in that: the liquid inlet temperature range of the cooling liquid is 65-67 ℃, and the liquid outlet temperature range of the cooling liquid is 66-68 ℃.
9. The use method of a hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 7, characterized in that: the inlet temperature range of the hydrogen is 38-42 ℃, and the outlet temperature range of the cooling liquid is 58-62 ℃.
10. The hydrogen gas heat exchanger for a hydrogen fuel cell according to claim 6 or 8, characterized in that: the cooling liquid is a mixture of water and glycol, and the ratio of the water to the glycol is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244245.4A CN111322898B (en) | 2020-03-31 | 2020-03-31 | Hydrogen heat exchanger for hydrogen fuel cell and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010244245.4A CN111322898B (en) | 2020-03-31 | 2020-03-31 | Hydrogen heat exchanger for hydrogen fuel cell and application method thereof |
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| CN111322898B CN111322898B (en) | 2024-07-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114864993A (en) * | 2022-05-23 | 2022-08-05 | 上海捷氢科技股份有限公司 | Integrated heat exchange device and proton exchange membrane fuel cell system |
| CN115332566A (en) * | 2022-09-14 | 2022-11-11 | 东方电气(成都)氢燃料电池科技有限公司 | Hydrogen-air-water integrated heat exchange device, system and method for fuel cell |
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|---|---|---|---|---|
| CN1656629A (en) * | 2002-05-22 | 2005-08-17 | 通用汽车公司 | Cooling system for a fuel cell stack |
| CN1965434A (en) * | 2004-06-10 | 2007-05-16 | 丰田自动车株式会社 | Cooling device for fuel cell and vehicle having the same |
| DE102014223519A1 (en) * | 2014-03-24 | 2015-09-24 | Hyundai Motor Company | Air compressor and fuel cell system with same |
| CN104948503A (en) * | 2014-03-24 | 2015-09-30 | 现代自动车株式会社 | Air compressor and fuel cell system having the same |
| CN212006882U (en) * | 2020-03-31 | 2020-11-24 | 爱赫德换热系统（无锡）有限公司 | Hydrogen heat exchanger for hydrogen fuel cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114864993A (en) * | 2022-05-23 | 2022-08-05 | 上海捷氢科技股份有限公司 | Integrated heat exchange device and proton exchange membrane fuel cell system |
| CN115332566A (en) * | 2022-09-14 | 2022-11-11 | 东方电气(成都)氢燃料电池科技有限公司 | Hydrogen-air-water integrated heat exchange device, system and method for fuel cell |
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