CN114976117A - Integrated device, gas supply system and gas supply method of fuel cell - Google Patents
Integrated device, gas supply system and gas supply method of fuel cell Download PDFInfo
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- CN114976117A CN114976117A CN202210801921.2A CN202210801921A CN114976117A CN 114976117 A CN114976117 A CN 114976117A CN 202210801921 A CN202210801921 A CN 202210801921A CN 114976117 A CN114976117 A CN 114976117A
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- 239000000446 fuel Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000001257 hydrogen Substances 0.000 claims abstract description 94
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 94
- 239000007789 gas Substances 0.000 claims abstract description 38
- 239000000110 cooling liquid Substances 0.000 claims description 41
- 239000002826 coolant Substances 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 239000012535 impurity Substances 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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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
- H01M8/04007—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
- H01M8/04298—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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- 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)
- 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)
- Fuel Cell (AREA)
Abstract
The invention provides an integrated device, an air supply system and an air supply method of a fuel cell, which comprise the following steps: an integrated intercooler; an air supply system supplying air to the integrated intercooler; a hydrogen supply system supplying hydrogen to the integrated intercooler; the electric pile is connected with the integrated intercooler; and the tail exhaust air system is used for conveying tail exhaust air of the electric pile to the integrated intercooler. The air supply system includes: the air compressor is connected with the integrated intercooler; and the air filter is connected with the air compressor. The invention discloses an integrated device, a gas supply system and a gas supply method of a fuel cell, which can enable the gas supply system of the fuel cell to be more integrated and lighter.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to an integrated device, an air supply system and an air supply method of a fuel cell.
Background
In a fuel cell system, an air system and a hydrogen system provide a source of gas for the operation of the stack. The temperature of the air provided by the air system is often higher than the air temperature range required by the electric pile, and an air cooling device is required for cooling. Meanwhile, the hydrogen system generally provides hydrogen in an air temperature range lower than that required by the electric pile. Especially under low temperature conditions, a heater is required to heat the hydrogen gas. The air cooling device and the hydrogen heating device are matched to provide an air source meeting the temperature requirement for the electric pile. However, the conventional air supply system for the fuel cell has problems of large volume and low integration level.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide an integrated apparatus, a gas supply system, and a gas supply method for a fuel cell, which can make the gas supply system for the fuel cell more lightweight and integrated.
To achieve the above and other related objects, the present invention provides an integrated device of a fuel cell, comprising:
an integrated intercooler;
an air supply system supplying air to the integrated intercooler;
a hydrogen supply system supplying hydrogen to the integrated intercooler;
the electric pile is connected with the integrated intercooler; and
and the tail exhaust air system is used for conveying tail exhaust air of the electric pile to the integrated intercooler.
In an embodiment of the present invention, the air supply system includes:
the air compressor is connected with the integrated intercooler; and
and the air filter is connected with the air compressor.
In one embodiment of the present invention, the hydrogen supply system includes:
the conveying pipeline is connected with the integrated intercooler; and
and the hydrogen stop valve is arranged on the conveying pipeline.
In one embodiment of the present invention, the tail bleed air system includes:
the tail exhaust air pipeline is arranged between the electric pile and the integrated intercooler;
and the back pressure valve is arranged on the tail exhaust air pipeline.
In an embodiment of the present invention, the method further includes:
and the cooling circulation system is respectively connected with the integrated intercooler, the electric pile and the air compressor.
In an embodiment of the present invention, the integrated intercooler includes:
a high temperature air cavity;
a main coolant cavity; and
at least two secondary cooling medium cavities;
the high-temperature air cavity, the main cooling liquid cavity and the secondary cooling medium cavity are arranged in the shell of the integrated intercooler.
In an embodiment of the present invention, the method further includes: and the hydrogen circulation system is used for circularly conveying the hydrogen discharged by the electric pile.
In one embodiment of the present invention, the hydrogen circulation system includes:
the hydrogen circulating device is connected with the galvanic pile; and
and the steam-water separator is connected between the galvanic pile and the hydrogen circulating device.
And the hydrogen discharge and water discharge pipeline of the steam-water separator is communicated with the tail gas discharge pipe of the integrated intercooler.
In an embodiment of the present invention, the method further includes:
and the tail gas discharge pipe is connected with a tail gas discharge air outlet of the integrated intercooler.
The present invention also provides a gas supply system for a fuel cell, comprising:
a bypass conduit;
the bypass valve is arranged on the bypass pipeline; and
an integrated device connected with the bypass conduit, the integrated device comprising:
an integrated intercooler;
an air supply system supplying air to the integrated intercooler;
a hydrogen supply system supplying hydrogen to the integrated intercooler;
the electric pile is connected with the integrated intercooler; and
and the tail exhaust air system is used for conveying tail exhaust air of the electric pile to the integrated intercooler.
The invention also provides a gas supply method of the fuel cell, and the integrated device adopting the fuel cell comprises the following steps:
the air supply system inputs high-temperature air into the integrated intercooler, and the tail exhaust air system inputs tail exhaust air of the electric pile into the integrated intercooler;
the high-temperature air and the tail exhaust air exchange heat to reduce the temperature of the high-temperature air;
introducing cooling liquid into the main cooling liquid cavity;
the cooling liquid exchanges heat with the high-temperature air to reduce the temperature of the high-temperature air;
the hydrogen supply system inputs hydrogen into the integrated intercooler;
the hydrogen and the high-temperature air exchange heat, so that the temperature of the high-temperature air is reduced, and the temperature of the hydrogen is increased;
the heated hydrogen and the cooled air are used as air sources to be supplied to the electric pile.
As described above, the present invention provides an integrated apparatus, an air supply system, and an air supply method for a fuel cell, which can further integrate and reduce the weight of the air supply system for the fuel cell, and improve the overall efficiency of the air supply system for the fuel cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the flow structure of the present invention.
FIG. 2 is a schematic view of the gas supply flow of the present invention.
Element number description:
10. an air supply system; 11. an air compressor; 12. an air filter;
20. a hydrogen supply system; 21. a delivery line; 22. a hydrogen stop valve;
30. an integrated intercooler;
40. a galvanic pile;
50. a tail bleed air system; 51. a tail exhaust air duct; 52. a back pressure valve;
60. a cooling circulation system;
70. a hydrogen circulation system;
80. a bypass valve;
90. and a tail gas discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-2. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and as the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, the type, quantity and proportion of each component in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
Embodiments of the present invention provide an integrated apparatus, a gas supply system, and a gas supply method for a fuel cell, which enable the gas supply system for the fuel cell to be more integrated and lightweight, and will be described in detail below.
Referring to fig. 1, fig. 1 shows an integrated device of a fuel cell according to an embodiment of the present invention, which may include an air supply system 10, a hydrogen supply system 20, an integrated intercooler 30, a stack 40, and a tail gas exhaust system 50. The air supply system 10 may supply high-temperature air to be cooled to the integrated intercooler 30, the hydrogen supply system 20 may supply hydrogen to the integrated intercooler 30, and the hydrogen may flow as a cooling medium in the integrated intercooler 30. Because the temperature of the hydrogen is lower than that of the high-temperature compressed air, the high-temperature compressed air can exchange heat with the hydrogen, so that the temperature of the hydrogen is increased, and the temperature of the high-temperature compressed air is reduced. When the temperature of the hydrogen is in the hydrogen temperature range required by the galvanic pile 40, the hydrogen meeting the temperature requirement can be introduced into the inlet of the galvanic pile 40 to provide a hydrogen source for the operation of the galvanic pile 40. The tail exhaust air system 50 may deliver low-temperature tail exhaust air to the integrated intercooler 30, and the tail exhaust air may flow as a cooling medium in the integrated intercooler 30 to exchange heat with high-temperature air inside the integrated intercooler 30. So that the temperature of the high-temperature air is reduced and the temperature of the tail exhaust air is increased. When the temperature of the air is in the air temperature range required by the electric pile 40, the air meeting the temperature requirement can be introduced into the inlet of the electric pile 40 to provide an air source for the operation of the electric pile 40. The exhaust air is heated and then discharged from the exhaust discharge pipe of the integrated intercooler 30. In the process of exhausting the tail exhaust air, the saturation of water vapor in the tail exhaust air is improved along with the temperature of the tail exhaust air, and the liquid water content in the tail exhaust air can be reduced. In the air supply process, the function of heating hydrogen and the function of cooling high-temperature air can be integrated in the intercooler, so that the integration level of the air supply system is improved, and the air supply system is lighter.
Referring to fig. 1, in one embodiment of the present invention, an air supply system 10 may include an air compressor 11 and an air filter 12. To prevent impurities from entering the air in the air compressor 11, an air filter 12 may be connected to an air inlet of the air compressor 11 to filter impurities in the air. The influence on the machine body caused by the impurities in the air entering the air compressor 11 is avoided. The air compressor 11 may compress the filtered air into high-temperature air, and deliver the high-temperature air to the integrated intercooler 30. The type of air filter 12 may be without limitation, and may be a panel filter, a bag filter, or other type of filter.
Referring to fig. 1, in one embodiment of the present invention, the hydrogen supply system 20 may include a delivery pipe 21 and a hydrogen shut-off valve 22. The hydrogen can be delivered to the integrated intercooler 30 by opening the hydrogen shut-off valve 22 on the delivery line 21. The hydrogen shut-off valve 22 on the delivery pipe 21 is closed, and the delivery of hydrogen gas can be stopped.
Referring to fig. 1, in one embodiment of the present invention, an integrated intercooler 30 includes a high temperature air cavity, a primary coolant cavity, and a secondary cooling medium cavity. The high-temperature compressed air can be introduced into the high-temperature air cavity to exchange heat with cooling media of other cavities. The number of the high temperature air cavities is not limited. The high-temperature air cavity can be one high-temperature air cavity or a plurality of high-temperature air cavities so as to divide the high-temperature air into each high-temperature air cavity. The cooling liquid can be introduced into the main cooling liquid cavity, and the high-temperature compressed air can exchange heat with the cooling liquid to reduce the temperature of the high-temperature compressed air. The number of the main cooling liquid cavities is not limited, the main cooling liquid cavities can be one main cooling liquid cavity, and a plurality of main cooling cavities can be arranged, so that the cooling liquid in the main cooling liquid cavities can cool high-temperature air. The number of the secondary cooling medium cavities is at least two, wherein hydrogen can be introduced into one of the secondary cooling medium cavities to serve as a cooling medium, and high-temperature compressed air can exchange heat with the hydrogen. And tail exhaust air can be introduced into the other secondary cooling medium cavity to serve as a cooling medium, and high-temperature air can exchange heat with the tail exhaust air. The distribution positions of the main cooling liquid cavity and the secondary cooling medium cavity can be unlimited, and the main cooling liquid cavity and the secondary cooling medium cavity are ensured to surround the high-temperature air cavity, so that the cooling medium and the high-temperature air can be subjected to heat exchange.
Referring to fig. 1, in an embodiment of the present invention, a temperature sensor may be installed at an inlet of the high temperature air chamber, and the temperature sensor may detect the temperature of the high temperature air. The flow rate of the cooling liquid can be adjusted according to the temperature of the introduced high-temperature air. The higher the air temperature of the inlet of the high-temperature air cavity is, the larger the flow of the cooling liquid is, so that the cooling effect is ensured.
Referring to fig. 1, in an embodiment of the present invention, the tail exhaust air may be first introduced into the secondary cooling medium cavity, so as to cool the high-temperature air by using the tail exhaust air to the maximum extent, thereby reducing the heat load of the cooling liquid and the hydrogen in other cavities. The cooling liquid can be used as a cooling medium of the second sequence and introduced into the main cooling liquid cavity, so that the temperature of high-temperature air is further reduced, and the heat load of the hydrogen is minimized. Therefore, the problem of overhigh temperature of hydrogen can be avoided after the heat exchange of the hydrogen and the high-temperature compressed air is ensured, and the explosion risk possibly caused by overhigh temperature after the heat exchange of the hydrogen is avoided.
Referring to fig. 1, in one embodiment of the present invention, a tail bleed air system 50 includes a tail bleed air duct 51 and a backpressure valve 52. A tail air duct 51 may be connected between a tail air outlet of the stack 40 and a tail air inlet of the integrated intercooler 30 to deliver tail air from the stack 40 into the integrated intercooler 30. A back pressure valve 52 can be installed on the tail exhaust air pipe 51, and the air inlet pressure of the stack 40 can be controlled by adjusting the opening degree of the back pressure valve 52, so that the air inlet pressure of the stack 40 meets the air inlet requirement.
Referring to fig. 1, in an embodiment of the present invention, when the cooling liquid flows out of the main cooling liquid cavity, the cooling liquid can be cooled by a radiator fan of the external cooling circulation system 60 and then delivered into the main cooling liquid cavity again by the cooling water pump. The tail exhaust air and the hydrogen can bear part of the heat load of the high-temperature air, so that the use amount of the cooling liquid can be reduced, and the power consumption of an external cooling circulation loop is reduced.
Referring to fig. 1, in an embodiment of the present invention, an air compressor 11, an integrated intercooler 30 and a stack 40 may be connected to a cooling circulation system 60. The cooling circulation system 60 may be connected to the main coolant cavity outlet of the integrated intercooler 30 of the integrated structure. The cooling liquid flows out of the main cooling liquid cavity and then enters the cooling circulation system 60, the radiator module of the cooling circulation system 60 can cool the cooling liquid, and the cooled cooling liquid can enter the main cooling liquid cavity again, so that the circulation of the cooling liquid is realized. Air compressor 11 may be connected to a corresponding cooling circulation system 60, and the radiator module of cooling circulation system 60 may dissipate heat from its operating components. The stacks 40 may be connected to a corresponding cooling circulation system 60, and the radiator module of the cooling circulation system 60 may dissipate heat from its operational components. The cooling circulation systems 60 connected to the air compressor 11, the integrated intercooler 30, and the electric stack 40 may be the same cooling circulation system 60 and share one radiator module, or may be cooling circulation systems 60 independent of each other and have independent radiator modules. The specific structure of the cooling circulation system 60 is not limited, and only the cooling and heat dissipation effects are ensured.
Referring to fig. 1, in an embodiment of the present invention, a hydrogen outlet of the stack 40 may be connected to a hydrogen circulation system 70, and the unreacted hydrogen of the stack 40 may be repeatedly delivered to the stack 40 through the hydrogen circulation system 70 for recycling. The hydrogen circulation system 70 may include a hydrogen circulation device and a steam separator. The hydrogen circulating device can be a hydrogen circulating pump, an ejector or other types of circulating devices. Taking the hydrogen circulation device as a hydrogen circulation pump as an example for illustration, the hydrogen outlet of the stack 40 may be connected to the inlet of the hydrogen circulation pump, and the unreacted hydrogen of the stack 40 may be recirculated to the hydrogen inlet of the stack 40 through the hydrogen circulation pump. The steam-water separator can be connected between the inlet of the hydrogen circulating pump and the hydrogen outlet of the cell stack 40, and separates out the impurity gas and the liquid water in the hydrogen and discharges the impurity gas and the liquid water to the tail gas discharge pipe 90. Thereby preventing water in the hydrogen from reentering the anode of the stack 40 to cause abnormal operation.
Referring to fig. 1, an embodiment of the present invention further provides an air supply system for a fuel cell, which includes a bypass pipe, a bypass valve 80 and an integrated device. In the event of a surge condition of the air compressor 11 of the integrated device, the bypass valve 80 can be opened, and the integrated device can discharge air via the bypass line. Abnormal conditions such as surge are avoided from damaging components of the air compressor 11.
Referring to fig. 1, in one embodiment of the present invention, the compressor 11 may generate a surge condition during operation or emergency shutdown. Specifically, when the gas pressure in the system pipeline connected to the outlet of the air compressor 11 is too high, the high-pressure gas may cause the conditions of outlet blockage of the air compressor 11, backflow of pipeline gas, and the like, that is, the surge condition of the air compressor 11. In order to avoid the continuous occurrence of surge condition of the air compressor 11, a bypass pipeline may be provided on the integrated intercooler 30. A bypass conduit may be connected to the exhaust discharge 90 of the integrated intercooler 30 and the bypass conduit may have a bypass valve 80 mounted thereon. When the surge condition occurs in the air compressor 11, the opening degree of the stop valve at the inlet of the pile 40 can be reduced or the stop valve is closed, and the bypass valve 80 is opened. Most or all of the air discharged from the high-temperature air chamber can be discharged to the exhaust gas discharge pipe 90 through the bypass pipe, so that the gas pressure in the system pipeline connected to the outlet of the air compressor 11 can be reduced, and the parts of the air compressor 11 are prevented from being damaged by abnormal conditions such as surge.
Referring to fig. 2, when the integrated device of the fuel cell in the above technical solution is used for supplying gas, the method includes the following steps:
in step S10, the air supply system 10 inputs the high-temperature air into the integrated intercooler 30, and the exhaust air system 50 inputs the exhaust air of the stack 40 into the integrated intercooler 30.
In one embodiment of the present invention, specifically, during the air supply process of the air supply system 10, the temperature of the air compressed by the air compressor 11 is higher than the temperature of the air source required by the stack 40. The high temperature air may be passed into the integrated intercooler 30 for cooling. Meanwhile, the tail exhaust air system 50 may input the tail exhaust air of the stack into the integrated intercooler 30. The temperature of the tail discharge air is lower than that of the high temperature air, and the tail discharge air can be used as a cooling medium inside the integrated intercooler 30.
And step S20, carrying out heat exchange between the high-temperature air and the tail exhaust air to reduce the temperature of the high-temperature air.
In one embodiment of the present invention, specifically, during the heat exchange between the high-temperature air and the tail discharge air, the temperature of the high-temperature air is decreased, and the temperature of the tail discharge air is increased. The heated exhaust air is discharged from the integrated intercooler 30.
And step S30, introducing the cooling liquid into the main cooling liquid cavity.
In an embodiment of the present invention, after the cooling liquid is introduced into the main cooling liquid cavity, the cooling liquid may be used as a cooling medium to cool the high temperature air.
In step S40, the coolant exchanges heat with the high-temperature air to lower the temperature of the high-temperature air.
In one embodiment of the present invention, specifically, during the heat exchange between the cooling liquid and the high-temperature air, the temperature of the high-temperature air is further decreased, and the temperature of the cooling liquid is increased. After the coolant flows out of the main coolant cavity, an external cooling circulation system 60 may cool the coolant and recirculate the coolant into the main coolant cavity.
And step S50, inputting hydrogen into the integrated intercooler by the hydrogen supply system.
In one embodiment of the present invention, hydrogen may be used as the cooling medium of the integrated intercooler 30. The hydrogen can be delivered to the integrated intercooler 30 by opening the hydrogen shut-off valve 22 on the delivery line 21.
And step S60, exchanging heat between the hydrogen and the high-temperature air to reduce the temperature of the high-temperature air and increase the temperature of the hydrogen.
In one embodiment of the present invention, particularly, during the heat exchange between the hydrogen gas and the high-temperature air, the high-temperature air is cooled, and the hydrogen gas can be heated, thereby eliminating an additional heating device. Therefore, the overall efficiency of the gas supply system of the fuel cell is improved, and the gas supply system of the fuel cell is more integrated and lighter.
And step S70, supplying the heated hydrogen and the cooled air to the electric pile as air sources.
In one embodiment of the present invention, specifically, when the temperature of the hydrogen gas is increased to between 60 degrees and 70 degrees, the hydrogen gas can be introduced into the stack 40 as a gas source. When the temperature of the air is reduced to 60-70 ℃, the air can be introduced into the electric pile 40 to be used as an air source.
In summary, according to the integrated device, the gas supply system, and the gas supply method for a fuel cell provided by the present invention, the gas supply system for a fuel cell can be integrated and reduced in weight, and the overall efficiency of the gas supply system for a fuel cell can be improved.
In the description of the present specification, reference to the description of the terms "present embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. An integrated assembly of fuel cells, comprising:
an integrated intercooler;
an air supply system supplying air to the integrated intercooler;
a hydrogen supply system supplying hydrogen to the integrated intercooler;
the electric pile is connected with the integrated intercooler; and
and the tail exhaust air system is used for conveying tail exhaust air of the electric pile to the integrated intercooler.
2. The integrated fuel cell device of claim 1, wherein the air supply system comprises:
the air compressor is connected with the integrated intercooler; and
and the air filter is connected with the air compressor.
3. The integrated device of a fuel cell according to claim 1, wherein the hydrogen gas supply system comprises:
the conveying pipeline is connected with the integrated intercooler; and
and the hydrogen stop valve is arranged on the conveying pipeline.
4. The integrated fuel cell device of claim 1, wherein the exhaust air system comprises:
the tail exhaust air pipeline is arranged between the electric pile and the integrated intercooler;
and the back pressure valve is arranged on the tail exhaust air pipeline.
5. The integrated fuel cell device according to claim 1, further comprising:
and the cooling circulation system is respectively connected with the integrated intercooler, the electric pile and the air compressor.
6. The integrated device of a fuel cell as set forth in claim 1, wherein the integrated intercooler comprises:
a high temperature air cavity;
a main coolant cavity; and
at least two secondary cooling medium cavities;
the high-temperature air cavity, the main cooling liquid cavity and the secondary cooling medium cavity are arranged in the shell of the integrated intercooler.
7. The integrated fuel cell device according to claim 1, further comprising: and the hydrogen circulation system is used for circularly conveying the hydrogen discharged by the electric pile.
8. An integrated device of a fuel cell according to claim 7, the hydrogen circulation system comprising:
the hydrogen circulating device is connected with the galvanic pile; and
and the steam-water separator is connected between the galvanic pile and the hydrogen circulating device.
And the hydrogen discharge and water discharge pipeline of the steam-water separator is communicated with the tail gas discharge pipe of the integrated intercooler.
9. An air supply system for a fuel cell, comprising:
a bypass conduit;
the bypass valve is arranged on the bypass pipeline; and
an integrated device connected with the bypass conduit, the integrated device comprising:
an integrated intercooler;
an air supply system supplying air to the integrated intercooler;
a hydrogen supply system supplying hydrogen to the integrated intercooler;
the electric pile is connected with the integrated intercooler; and
and the tail exhaust air system is used for conveying tail exhaust air of the electric pile to the integrated intercooler.
10. A gas supply method for a fuel cell, using the integrated device of a fuel cell according to any one of claims 1 to 8, comprising the steps of:
the air supply system inputs high-temperature air into the integrated intercooler, and the tail exhaust air system inputs tail exhaust air of the electric pile into the integrated intercooler;
the high-temperature air and the tail exhaust air exchange heat to reduce the temperature of the high-temperature air;
introducing cooling liquid into the main cooling liquid cavity;
the cooling liquid exchanges heat with the high-temperature air to reduce the temperature of the high-temperature air;
the hydrogen supply system inputs hydrogen into the integrated intercooler;
the hydrogen and the high-temperature air are subjected to heat exchange, so that the temperature of the high-temperature air is reduced, and the temperature of the hydrogen is increased;
the heated hydrogen and the cooled air are used as air sources to be supplied to the electric pile.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801921.2A CN114976117A (en) | 2022-07-08 | 2022-07-08 | Integrated device, gas supply system and gas supply method of fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801921.2A CN114976117A (en) | 2022-07-08 | 2022-07-08 | Integrated device, gas supply system and gas supply method of fuel cell |
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| CN114976117A true CN114976117A (en) | 2022-08-30 |
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| CN202210801921.2A Pending CN114976117A (en) | 2022-07-08 | 2022-07-08 | Integrated device, gas supply system and gas supply method of fuel cell |
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Citations (6)
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| KR20070048917A (en) * | 2005-11-07 | 2007-05-10 | 한라공조주식회사 | Fuel cell |
| JP2008215175A (en) * | 2007-03-02 | 2008-09-18 | Toyota Motor Corp | Compressor and fuel cell system equipped therewith |
| CN112490468A (en) * | 2020-11-20 | 2021-03-12 | 广西玉柴机器股份有限公司 | Integrated intercooler, thermal management device and fuel cell system |
| CN112993316A (en) * | 2019-12-16 | 2021-06-18 | 中车时代电动汽车股份有限公司 | Raw material supply system for fuel cell |
| CN216528970U (en) * | 2021-11-26 | 2022-05-13 | 未势能源科技有限公司 | Fuel cell system |
| CN114678573A (en) * | 2022-04-12 | 2022-06-28 | 大洋电机燃料电池科技(中山)有限公司 | Fuel cell system with energy recovery function and control method |
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2022
- 2022-07-08 CN CN202210801921.2A patent/CN114976117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070048917A (en) * | 2005-11-07 | 2007-05-10 | 한라공조주식회사 | Fuel cell |
| JP2008215175A (en) * | 2007-03-02 | 2008-09-18 | Toyota Motor Corp | Compressor and fuel cell system equipped therewith |
| CN112993316A (en) * | 2019-12-16 | 2021-06-18 | 中车时代电动汽车股份有限公司 | Raw material supply system for fuel cell |
| CN112490468A (en) * | 2020-11-20 | 2021-03-12 | 广西玉柴机器股份有限公司 | Integrated intercooler, thermal management device and fuel cell system |
| CN216528970U (en) * | 2021-11-26 | 2022-05-13 | 未势能源科技有限公司 | Fuel cell system |
| CN114678573A (en) * | 2022-04-12 | 2022-06-28 | 大洋电机燃料电池科技(中山)有限公司 | Fuel cell system with energy recovery function and control method |
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