CN212006882U - Hydrogen heat exchanger for hydrogen fuel cell - Google Patents
Hydrogen heat exchanger for hydrogen fuel cell Download PDFInfo
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- CN212006882U CN212006882U CN202020453892.1U CN202020453892U CN212006882U CN 212006882 U CN212006882 U CN 212006882U CN 202020453892 U CN202020453892 U CN 202020453892U CN 212006882 U CN212006882 U CN 212006882U
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- compressed air
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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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Abstract
The utility model relates to a hydrogen heat exchanger for hydrogen fuel cell, which comprises a heat exchange core body, wherein the heat exchange core body comprises a plurality of compressed air runners and a plurality of cooling liquid runners which are arranged at intervals, two ends of the compressed air runners 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 the cooling liquid runners 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 pass through the cooling liquid outlet cavity and extend to the outside, the hydrogen heat exchanger for hydrogen fuel cell heats the hydrogen to proper temperature by the compressed air, and then heats the hydrogen, and the structure is compact, the heat exchange efficiency is high, and the use and the installation are convenient.
Description
Technical Field
The utility model relates to a heat exchanger especially relates to a hydrogen heat exchanger for hydrogen fuel cell.
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.
SUMMERY OF THE UTILITY MODEL
The applicant has made research and improvement aiming at the above disadvantages and provides a hydrogen gas heat exchanger for a hydrogen fuel cell.
The utility model discloses the technical scheme who adopts 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.
The utility model has the advantages as follows: 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 the structure schematic diagram of the heat exchange core of the hydrogen heat exchanger for the hydrogen fuel cell provided by the utility model.
Fig. 3 is an installation schematic diagram of a hydrogen pipeline of a hydrogen heat exchanger for a hydrogen fuel cell provided by the present invention.
Fig. 4 is a schematic structural diagram of a hydrogen pipeline of a hydrogen heat exchanger for a hydrogen fuel cell according to the present 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
When the hydrogen heat exchanger for the hydrogen fuel cell of the embodiment is used, the method 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.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.
Claims (5)
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020453892.1U CN212006882U (en) | 2020-03-31 | 2020-03-31 | Hydrogen heat exchanger for hydrogen fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020453892.1U CN212006882U (en) | 2020-03-31 | 2020-03-31 | Hydrogen heat exchanger for hydrogen fuel cell |
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| CN212006882U true CN212006882U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810462A (en) * | 2021-01-15 | 2021-05-18 | 无锡方盛换热器股份有限公司 | Special compound heat transfer device of new forms of energy electric motor car |
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2020
- 2020-03-31 CN CN202020453892.1U patent/CN212006882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810462A (en) * | 2021-01-15 | 2021-05-18 | 无锡方盛换热器股份有限公司 | Special compound heat transfer device of new forms of energy electric motor car |
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