CN116014175A - Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system - Google Patents
Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system Download PDFInfo
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- CN116014175A CN116014175A CN202211684379.3A CN202211684379A CN116014175A CN 116014175 A CN116014175 A CN 116014175A CN 202211684379 A CN202211684379 A CN 202211684379A CN 116014175 A CN116014175 A CN 116014175A
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- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 34
- 239000000110 cooling liquid Substances 0.000 claims abstract description 109
- 239000007788 liquid Substances 0.000 claims description 49
- 239000012528 membrane Substances 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 15
- 239000002826 coolant Substances 0.000 claims description 10
- 239000012809 cooling fluid Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims 9
- 230000005611 electricity Effects 0.000 claims 1
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- 239000003570 air Substances 0.000 description 99
- 238000007789 sealing Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
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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 invention provides an expansion water tank structure and a heat dissipation system for a fuel cell heat dissipation system, which relate to the technical field of heat dissipation, wherein the expansion water tank structure is used for maintaining the stable pressure difference between air flowing through a polar plate and cooling liquid of a fuel cell, and comprises the following components: the shell is internally provided with a first cavity for containing air and a second cavity for containing cooling liquid, wherein the first cavity can be reduced along with the expansion of the second cavity, and the second cavity can also be reduced along with the expansion of the first cavity; when the air pressure of the air inlet is increased, the air pressure in the first cavity is increased, the first cavity is expanded to extrude the second cavity to be contracted, the cooling liquid in the second cavity is extruded from the cooling liquid circulation port, and the cooling liquid pressure of the cooling liquid inlet is increased, so that the pressure difference between the air flowing through the polar plate and the cooling liquid can be maintained stable, and the polar plate can not be damaged due to wide change of the pressure difference between the cooling liquid and the air.
Description
Technical Field
The invention belongs to the technical field of heat dissipation, and particularly relates to an expansion water tank structure for a fuel cell heat dissipation system and the heat dissipation system.
Background
In order to respond to energy conservation and emission reduction call, the aim of carbon neutralization is achieved early, and the development of the new energy unmanned aerial vehicle enters the golden period. The biggest limitation bottleneck of the new energy unmanned aerial vehicle at present is the duration, and the current popular lithium ion battery system can only last for 1 hour in the weight range allowed by the unmanned aerial vehicle, and how to prolong the duration of the new energy unmanned aerial vehicle is a breakthrough problem at home and abroad.
Therefore, hydrogen fuel cell power is increasingly becoming a trend for new energy unmanned aerial vehicles. Compared with a lithium battery, the hydrogen fuel battery has longer service life, and the hydrogen fuel has the characteristics of sufficient source, high energy density, low price, no pollution of products and the like, and the fuel battery can supply power for unmanned aerial vehicles to meet the long-time power requirement, thereby reducing the weight of a power supply system. However, the existing fuel cell has some difficulty in use, in the process of radiating the fuel cell by the radiating system, the cooling liquid and the high-pressure air can flow through the polar plate at the same time, and once the pressure difference between the cooling liquid and the air changes in a large range, the polar plate is damaged due to the fact that the polar plate is thin and has poor strength.
Disclosure of Invention
The invention aims to provide an expansion water tank structure for a fuel cell cooling system and a cooling system aiming at the defects of the prior art, so as to solve the problems that the prior fuel cell provided in the prior art has some use difficulties, and cooling liquid and high-pressure air can flow through a polar plate simultaneously in the cooling process of the fuel cell by the cooling system, and the polar plate is thin once the pressure difference between the cooling liquid and the air changes in a large range, so that the polar plate is damaged.
In order to achieve the above object, the present invention provides an expansion tank structure for a heat dissipation system of a fuel cell for maintaining a pressure difference between air flowing through a plate and a coolant in the fuel cell stable, comprising:
the cooling device comprises a shell, wherein a first cavity for containing air and a second cavity for containing cooling liquid are arranged in the shell, the first cavity can be contracted along with the expansion of the second cavity, and the second cavity can also be contracted along with the expansion of the first cavity;
one end of the shell is provided with an air circulation port communicated with the first cavity, and the air circulation port is used for being communicated with an air inlet of the fuel cell;
the other end of the shell is provided with a cooling liquid circulation port communicated with the second cavity, and the cooling liquid circulation port is used for being communicated with a cooling liquid inlet of the fuel cell.
Preferably, the expansion tank structure further comprises an expansion membrane body, the expansion membrane body is arranged in the shell, a first cavity is formed between the outer side wall of the expansion membrane body and the inner side wall of the shell, a second cavity is formed on the inner side wall of the expansion membrane body, an opening communicated with the second cavity is formed on the outer side wall of the expansion membrane body, and the opening is communicated with the cooling liquid circulation port.
Preferably, the expansion film body is an rubber film body.
Preferably, the outer edge wall of the opening is provided with a flange which is pressed against the outer peripheral wall of the cooling liquid circulation port.
Preferably, the expansion tank structure further comprises a sealing pressing piece, wherein the sealing piece is in a ring shape, and the sealing piece in the ring shape is sleeved on the opening and is pressed against the turnup.
Preferably, the air circulation port is provided with an air connector, and the cooling liquid circulation port is provided with a liquid connector.
A heat dissipation system, the air inlet is connected with one end of a first air pipe, the other end of the first air pipe is connected with an output port of a compressor, a compressor controller is electrically connected with the compressor and a dc converter, the system comprises:
according to the expansion water tank structure for the fuel cell heat dissipation system, the number of the expansion water tank structures is two, the air circulation ports of the two expansion water tank structures are communicated and are connected with one end of a second air pipe, the other end of the second air pipe is connected with the air inlet, one cooling liquid circulation port of one expansion water tank structure is connected with one end of a first liquid pipe, the other end of the first liquid pipe is connected with the cooling liquid inlet, and the cooling liquid circulation port of the other expansion water tank structure is connected with one end of a second liquid pipe;
the fuel cell comprises a first heat dissipation circulation system and a second heat dissipation circulation system, wherein an output port and an input port of the first heat dissipation circulation system are respectively connected with a cooling liquid inlet and a cooling liquid outlet of the fuel cell, an input port and an output port of the second heat dissipation circulation system are both connected with the other end of the second liquid pipe, and the second heat dissipation circulation system is used for penetrating through the gas compressor, the direct current converter and the gas compressor controller.
Preferably, a first liquid port is formed in the first liquid pipe, the first liquid port is connected with one end of a first outer through pipe, and a first liquid injection valve is arranged on the first outer through pipe.
Preferably, a second liquid port is formed in the second liquid pipe, the second liquid port is connected with one end of a second outer through pipe, and a second liquid injection valve is arranged on the second outer through pipe.
Preferably, the system further comprises an intercooler and a third liquid pipe, the first air pipe is communicated with the air communication pipeline of the intercooler, the third liquid pipe is communicated with the liquid communication pipeline of the intercooler, two ends of the third liquid pipe are respectively connected with the cooling liquid inlet and the cooling liquid outlet, and the third liquid pipe is provided with a spherical valve.
The invention provides an expansion water tank structure and a heat dissipation system for a fuel cell heat dissipation system, a first cavity for containing air and a second cavity for containing cooling liquid are arranged in a shell of the expansion water tank structure, an air circulation port communicated with the first cavity is arranged at one end of the shell and is communicated with an air inlet, so that the air pressure in the first cavity is the same as the pressure of the air inlet, a cooling liquid circulation port communicated with the second cavity is arranged at the other end of the shell and is communicated with the cooling liquid inlet, so that the pressure of cooling liquid in the second cavity is the same as the pressure of the cooling liquid inlet, the second cavity can also be reduced along with the expansion of the first cavity due to the fact that the first cavity can be reduced along with the expansion of the second cavity, and then, when the air pressure of the air inlet is increased, the air pressure in the first cavity is increased, the first cavity is expanded along with the expansion of the first cavity and is reduced, the cooling liquid in the second cavity is extruded from the cooling liquid circulation port, the cooling liquid pressure of the cooling liquid inlet is increased, the cooling liquid pressure of the cooling liquid flowing through the cooling liquid inlet is maintained, and the cooling liquid pressure difference is stable, and the air pressure difference is reduced along with the cooling liquid in the cooling liquid plate, and the cooling liquid is stable when the air pressure difference is reduced along with the cooling liquid pressure of the cooling liquid flowing through the cooling liquid inlet, and the cooling liquid pressure is stable air pressure is reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
FIG. 1 shows a schematic cross-sectional structural view of an expansion tank structure for a fuel cell heat dissipation system according to an embodiment of the present invention;
fig. 2 shows a schematic diagram of a heat dissipation system according to an embodiment of the invention.
Reference numerals illustrate:
1. an expansion tank structure; 2. a fuel cell; 3. a housing; 4. a first cavity; 5. a second cavity; 6. an air flow port; 7. a cooling liquid flow port; 8. an inflatable membrane; 9. sealing and pressing piece; 10. a compressor; 11. a compressor controller; 12. a DC converter; 13. an intercooler; 14. a ball valve; 15. a humidifier; 16. a water temperature sensor; 17. a first water pump; 18. a first air-cooled radiator; 19. a second air-cooled radiator; 20. a bypass control valve; 21. a first exhaust valve; 22. a second water pump; 23. a third air-cooled radiator; 24. a second exhaust valve; 25. a first liquid injection valve; 26. a second liquid injection valve;
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, the present invention provides an expansion tank structure 1 for a heat dissipation system of a fuel cell, the expansion tank structure 1 for maintaining a pressure difference between air flowing through a polar plate and a coolant in the fuel cell 2 stable, the expansion tank structure 1 comprising:
the shell 3, the inside of the shell 3 is provided with a first cavity 4 for containing air and a second cavity 5 for containing cooling liquid, the first cavity 4 can be contracted along with the expansion of the second cavity 5, and the second cavity 5 can be contracted along with the expansion of the first cavity 4;
one end of the housing 3 is provided with an air circulation port 6 communicated with the first cavity 4, and the air circulation port 6 is used for communicating with an air inlet of the fuel cell 2;
the other end of the housing 3 is provided with a coolant flow port 7 communicating with the second chamber 5, the coolant flow port 7 being for communication with a coolant inlet of the fuel cell 2.
In particular, in order to solve the problems of the prior fuel cell 2 that some use difficulties exist, in the process of radiating the fuel cell 2 by a radiating system, the cooling liquid and the high-pressure air can flow through the polar plate at the same time, and as the polar plate is thin, once the pressure difference between the cooling liquid and the air changes widely, the polar plate is damaged, the invention provides an expansion water tank structure for the fuel cell radiating system, a first cavity 4 for containing air and a second cavity 5 for containing the cooling liquid are arranged in a shell 3 of the expansion water tank structure 1, one end of the shell 3 is provided with an air circulation port 6 communicated with the first cavity 4, the air circulation port 6 is communicated with an air inlet, so that the air pressure in the first cavity 4 is the same as the pressure of the air inlet, the other end of the shell 3 is provided with a cooling liquid circulation port 7 communicated with the second cavity 5, the cooling liquid circulation port 7 is communicated with the cooling liquid inlet, so that the pressure of the cooling fluid in the second cavity 5 is the same as the pressure of the cooling fluid inlet, since the first cavity 4 can be reduced along with the expansion of the second cavity 5, the second cavity 5 can also be reduced along with the expansion of the first cavity 4, when the air pressure of the air inlet is increased, the air pressure in the first cavity 4 is increased, the first cavity 4 is expanded to squeeze the second cavity 5 to be reduced, the cooling fluid in the second cavity 5 is also squeezed out of the cooling fluid circulation port 7, the pressure of the cooling fluid inlet is increased, so that the pressure difference between the air flowing through the polar plate and the cooling fluid can be maintained stable, conversely, when the air pressure of the air inlet is reduced, the air pressure in the first cavity 4 is reduced, the second cavity 5 is expanded, the cooling fluid is sucked from the cooling fluid circulation port 7, the pressure of the cooling liquid at the cooling liquid inlet is reduced, so that the pressure difference between the air flowing through the polar plate and the cooling liquid is maintained stable, and the polar plate is ensured not to be damaged due to wide variation of the pressure difference between the cooling liquid and the air.
Preferably, the expansion tank structure 1 further comprises an expansion membrane body 8, the expansion membrane body 8 is arranged in the shell 3, a first cavity 4 is formed between the outer side wall of the expansion membrane body 8 and the inner side wall of the shell 3, a second cavity 5 is formed on the inner side wall of the expansion membrane body 8, an opening communicated with the second cavity 5 is formed on the outer side wall of the expansion membrane body 8, and the opening is communicated with the cooling liquid circulation port 7.
Specifically, the expansion function of the expansion membrane 8 can realize that the first cavity 4 is reduced along with the expansion of the second cavity 5, and the contraction function of the expansion membrane 8 can realize that the second cavity 5 is reduced along with the expansion of the first cavity 4.
Preferably, the inflation film 8 is an rubber film.
Specifically, the rubber film body has better expansion and contraction effects.
Preferably, the outer peripheral wall of the opening is provided with a flange which is crimped on the outer peripheral wall of the coolant flow port 7.
Specifically, the flange is used to increase the contact area with the outer peripheral wall of the coolant flow port 7, thereby improving the sealing effect.
Preferably, the expansion tank structure further comprises a sealing pressing piece 9, the sealing pressing piece 9 is in a ring shape, and the sealing pressing piece 9 in the ring shape is sleeved on the opening and is pressed on the flanging.
Specifically, the sealing effect is further improved by crimping of the packing follower 9.
Preferably, the air circulation port 6 is provided with an air connector, and the cooling liquid circulation port 7 is provided with a liquid connector.
Specifically, the gas connector is used for communicating with the air inlet, and the liquid connector is used for communicating with the cooling liquid inlet.
As shown in fig. 2, a heat dissipation system, in which an air inlet is connected to one end of a first air pipe, the other end of the first air pipe is connected to an output port of a compressor 10, and a compressor controller 11 is electrically connected to the compressor 10 and a direct current converter (DCDC) 12, the system comprising:
according to the expansion water tank structures for the fuel cell heat dissipation system, the number of the expansion water tank structures 1 is two, the air circulation ports 6 of the two expansion water tank structures 1 are communicated and are connected with one end of a second air pipe, the other end of the second air pipe is connected with an air inlet, the cooling liquid circulation port 7 of one expansion water tank structure 1 is connected with one end of a first liquid pipe, the other end of the first liquid pipe is connected with a cooling liquid inlet, and the cooling liquid circulation port 7 of the other expansion water tank structure 1 is connected with one end of the second liquid pipe;
the first heat dissipation circulation system and the second heat dissipation circulation system, the output port and the input port of the first heat dissipation circulation system are respectively connected with the cooling liquid inlet and the cooling liquid outlet of the fuel cell, the input port and the output port of the second heat dissipation circulation system are both connected with the other end of the second liquid pipe, and the second heat dissipation circulation system is used for penetrating through the gas compressor 10, the direct current converter 12 and the gas compressor controller 11;
the first air pipe is communicated with an air-through pipeline of the intercooler 13, the third liquid pipe is communicated with a liquid-through pipeline of the intercooler 13, two ends of the third liquid pipe are respectively connected with a cooling liquid inlet and a cooling liquid outlet, and the third liquid pipe is provided with a spherical valve 14;
a humidifier 15, the humidifier 15 being disposed on the first air pipe and located between the intercooler 13 and the fuel cell 2.
Preferably, the first heat dissipation circulation system comprises a first circulation pipe, two ends of the first circulation pipe are respectively connected with the cooling liquid inlet and the cooling liquid outlet, a water temperature sensor 16, a first water pump 17, a first air cooling radiator 18 and a second air cooling radiator 19 are sequentially connected to the first circulation pipe along the circulation direction of the cooling liquid, a bypass output port is arranged at the position, between the first air cooling radiator 18 and the first water pump 17, of the first circulation pipe, a bypass input port is arranged at the position, between the second air cooling radiator 19 and the cooling liquid outlet, of the first circulation pipe, two ends of the bypass pipe are respectively connected to the bypass output port and the bypass input port, a bypass control valve 20 is arranged on the bypass pipe, a first exhaust port is arranged between the first air cooling radiator 18 and the second air cooling radiator 19, one end of the first exhaust pipe is connected to the first exhaust port, and a first exhaust valve 21 is arranged on the first exhaust pipe.
Specifically, when the fuel cell 2 starts to supply energy, the rotation speed of the first water pump 17 and the opening of the bypass control valve 20 are controlled, part of the cooling liquid flows through the first air-cooled radiator 18 and the second air-cooled radiator 19, the rest of the cooling liquid directly flows through the bypass control valve 20 through the bypass pipe, the two paths of cooling liquid are converged after flowing into the intercooler 13 after being converged, the rest of the cooling liquid flows into the fuel cell 2 to dissipate heat for the fuel cell 2 and the air flowing into the polar plate, and the two paths of cooling liquid are converged again before the first water pump 17 and flow into the first water pump 17 to form a loop.
The ambient air is compressed by the compressor 10 and then becomes high-temperature high-pressure air, and then becomes medium-temperature high-pressure wet air after passing through the intercooler 13 and the humidifier 15, wherein the cooling liquid flowing through the third liquid pipe can cool the high-temperature high-pressure air flowing through the first air pipe in the intercooler 13, and then the medium-temperature high-pressure wet air enters the fuel cell 2 for reaction.
Preferably, the second heat dissipation circulation system comprises a second circulation pipe, both ends of the second circulation pipe are connected with the other end of the second liquid pipe, the second circulation pipe is used for penetrating through the air compressor 10, the direct current converter 12 and the air compressor controller 11, the second circulation pipe is sequentially connected with the second water pump 22 and the third air cooling radiator 23 along the circulation direction of cooling liquid, a second exhaust port is arranged between the third air cooling radiator 23 and the air compressor 10, the second exhaust port is connected with one end of a second exhaust pipe, and a second exhaust valve 24 is arranged on the second exhaust pipe.
Specifically, the cooling liquid flows out from the second water pump 22 and then flows through the third air-cooled radiator 23, then sequentially flows through the compressor 10, the direct-current converter 12 and the compressor controller 11, dissipates heat of the three parts and flows back to the second water pump 22 to form a loop;
the other expansion water tank structure is regulated in the same way as one expansion water tank structure, so that the pressure difference between the cooling liquid in the second heat dissipation circulation system and the air in the second air pipe can be maintained stable.
Preferably, a first liquid port is arranged on the first liquid pipe, the first liquid port is connected with one end of a first outer through pipe, and a first liquid injection valve 25 is arranged on the first outer through pipe.
Specifically, the device is used for injecting or discharging the cooling liquid into the first liquid pipe.
Preferably, a second liquid port is arranged on the second liquid pipe, the second liquid port is connected with one end of a second outer through pipe, and a second liquid injection valve 26 is arranged on the second outer through pipe.
Specifically, the cooling liquid is injected into or discharged from the second liquid pipe.
In summary, when the expansion tank structure for a fuel cell heat dissipation system of the present invention is implemented in a cell heat dissipation system, since the expansion membrane body 8 is disposed in the housing 3, a first cavity 4 is formed between the outer side wall of the expansion membrane body 8 and the inner side wall of the housing 3, a second cavity 5 is formed on the inner side wall of the expansion membrane body 8, one end of the housing 3 is provided with an air circulation port 6 communicating with the first cavity 4, the air circulation port 6 is used for communicating with an air inlet so that the air pressure in the first cavity 4 is the same as the pressure of the air inlet, the other end of the housing 3 is provided with a cooling liquid circulation port 7 communicating with the second cavity 5, and the cooling liquid circulation port 7 is used for communicating with the cooling liquid inlet so that the cooling liquid pressure in the second cavity 5 is the same as the cooling liquid inlet pressure. Further, when the air pressure of the air inlet is increased, the air pressure in the first cavity 4 is increased, the first cavity 4 is expanded to press the second cavity 5 to be contracted, the cooling liquid in the second cavity 5 is also extruded from the cooling liquid circulation port 7, the cooling liquid pressure of the cooling liquid inlet is increased, so that the pressure difference between the air flowing through the polar plate and the cooling liquid can be kept stable, conversely, when the air pressure of the air inlet is reduced, the air pressure in the first cavity 4 is reduced, the second cavity 4 is expanded, the cooling liquid is sucked into the cooling liquid through the cooling liquid circulation port 7, the cooling liquid pressure of the cooling liquid inlet is reduced, and the pressure difference between the air flowing through the polar plate and the cooling liquid can be kept stable, so that the polar plate cannot be damaged due to wide variation of the pressure difference between the cooling liquid and the air.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (9)
1. An expansion tank structure for a fuel cell heat dissipation system for maintaining a pressure differential between air flowing through a plate and a coolant in a fuel cell stable, the expansion tank structure comprising:
the cooling device comprises a shell, wherein a first cavity for containing air and a second cavity for containing cooling liquid are arranged in the shell, the first cavity can be contracted along with the expansion of the second cavity, and the second cavity can also be contracted along with the expansion of the first cavity;
one end of the shell is provided with an air circulation port communicated with the first cavity, and the air circulation port is used for being communicated with an air inlet of the fuel cell;
the other end of the shell is provided with a cooling liquid circulation port communicated with the second cavity, and the cooling liquid circulation port is used for being communicated with a cooling liquid inlet of the fuel cell.
2. The expansion tank structure for a heat dissipation system of a fuel cell according to claim 1, further comprising an expansion membrane body disposed in the housing, wherein the first cavity is formed between an outer side wall of the expansion membrane body and an inner side wall of the housing, wherein the second cavity is formed by the inner side wall of the expansion membrane body, and wherein an opening communicating with the second cavity is provided in the outer side wall of the expansion membrane body, and wherein the opening communicates with the coolant flow port.
3. The expansion tank structure for a fuel cell heat dissipating system according to claim 2, wherein the expansion film body is a rubber film body.
4. The expansion tank structure for a heat dissipating system of a fuel cell according to claim 2, wherein the outer peripheral wall of the opening is provided with a flange which is crimped to the outer peripheral wall of the coolant flow port.
5. The expansion tank structure for a fuel cell heat dissipating system according to claim 4, further comprising a seal member having a ring shape, said seal member having a ring shape being fitted over said opening and crimped over said turn-over edge.
6. The utility model provides a cooling system, air inlet is connected with first tracheal one end, first tracheal other end is connected with the delivery outlet of compressor, and compressor controller electricity is connected compressor and DC converter, its characterized in that, this system includes:
the expansion tank structure for a fuel cell heat radiation system according to any one of claims 1 to 5, wherein the number of the expansion tank structures is two, the air flow openings of the two expansion tank structures are communicated and are each connected with one end of a second air pipe, the other end of the second air pipe is connected with the air inlet, the cooling liquid flow opening of one of the expansion tank structures is connected with one end of a first liquid pipe, the other end of the first liquid pipe is connected with the cooling liquid inlet, and the cooling liquid flow opening of the other expansion tank structure is connected with one end of a second liquid pipe;
the fuel cell comprises a first heat dissipation circulation system and a second heat dissipation circulation system, wherein an output port and an input port of the first heat dissipation circulation system are respectively connected with a cooling liquid inlet and a cooling liquid outlet of the fuel cell, an input port and an output port of the second heat dissipation circulation system are both connected with the other end of the second liquid pipe, and the second heat dissipation circulation system is used for penetrating through the gas compressor, the direct current converter and the gas compressor controller.
7. The heat dissipating system of claim 6 wherein said first fluid line is provided with a first fluid port, said first fluid port being connected to one end of a first outer tube, said first outer tube being provided with a first fluid injection valve.
8. The heat dissipating system of claim 6 wherein the second liquid pipe is provided with a second liquid port, the second liquid port is connected to one end of a second outer tube, and the second outer tube is provided with a second liquid injection valve.
9. The heat removal system of claim 6, further comprising an intercooler and a third fluid conduit, wherein the first air conduit communicates with the air passage of the intercooler, the third fluid conduit communicates with the fluid passage of the intercooler, two ends of the third fluid conduit are respectively connected to the cooling fluid inlet and the cooling fluid outlet, and the third fluid conduit is provided with a ball valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211684379.3A CN116014175A (en) | 2022-12-27 | 2022-12-27 | Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211684379.3A CN116014175A (en) | 2022-12-27 | 2022-12-27 | Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system |
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| CN116014175A true CN116014175A (en) | 2023-04-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124129A2 (en) * | 2008-04-01 | 2009-10-08 | Commscope, Inc. Of North Carolina | Fuel cell cabinet |
| JP2012238551A (en) * | 2011-05-13 | 2012-12-06 | Toyota Boshoku Corp | Cooling system for fuel cell |
| CN212667175U (en) * | 2020-06-08 | 2021-03-09 | 福州市雪人新能源技术有限公司 | Cooling liquid circulating system of hydrogen fuel cell engine |
| CN112687910A (en) * | 2020-12-25 | 2021-04-20 | 中国第一汽车股份有限公司 | Cold start control system and method for automobile fuel cell |
| CN219553678U (en) * | 2022-12-27 | 2023-08-18 | 中国航天空气动力技术研究院 | Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system |
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2022
- 2022-12-27 CN CN202211684379.3A patent/CN116014175A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009124129A2 (en) * | 2008-04-01 | 2009-10-08 | Commscope, Inc. Of North Carolina | Fuel cell cabinet |
| JP2012238551A (en) * | 2011-05-13 | 2012-12-06 | Toyota Boshoku Corp | Cooling system for fuel cell |
| CN212667175U (en) * | 2020-06-08 | 2021-03-09 | 福州市雪人新能源技术有限公司 | Cooling liquid circulating system of hydrogen fuel cell engine |
| CN112687910A (en) * | 2020-12-25 | 2021-04-20 | 中国第一汽车股份有限公司 | Cold start control system and method for automobile fuel cell |
| CN219553678U (en) * | 2022-12-27 | 2023-08-18 | 中国航天空气动力技术研究院 | Expansion water tank structure for fuel cell heat dissipation system and heat dissipation system |
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