CN220672621U - Fuel cell air system and fuel cell system - Google Patents
Fuel cell air system and fuel cell system Download PDFInfo
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- CN220672621U CN220672621U CN202322095412.5U CN202322095412U CN220672621U CN 220672621 U CN220672621 U CN 220672621U CN 202322095412 U CN202322095412 U CN 202322095412U CN 220672621 U CN220672621 U CN 220672621U
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- fuel cell
- liquid
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- 239000000446 fuel Substances 0.000 title claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 94
- 238000001816 cooling Methods 0.000 claims abstract description 68
- 238000000926 separation method Methods 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims description 90
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 6
- 239000012495 reaction gas Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
Landscapes
- Fuel Cell (AREA)
Abstract
The fuel cell air system and the fuel cell system provided by the application comprise an air filter, an air flowmeter, an air compressor, an inter-cooling system, a humidifier, a fuel cell stack and a gas-liquid separation device, wherein the air flowmeter is arranged at the downstream of the air filter, and the air compressor is arranged at the downstream of the air flowmeter to form compressed gas; the intercooling system is arranged at the downstream of the air compressor and used for cooling the compressed gas; the cooled gas flows into the dry side of the humidifier, and flows into the fuel cell stack for reaction after being humidified; then flows into the wet side of the humidifier, flows to the gas-liquid separation device for gas-liquid separation, and the separated gas is conveyed to the expander after being heated by the intercooling system; a back pressure valve is arranged between the expander and the gas-liquid separation device. The cooling device can ensure good cooling effect and simultaneously alleviate the problems of high cooling power and poor cooling effect; the energy recovery efficiency of the expander is improved; the wet gas after expansion is prevented from liquid precipitation to cause liquid impact, and the service life and reliability of the expander are prolonged.
Description
Technical Field
The application belongs to the technical field of fuel cells, and relates to a fuel cell air system and a fuel cell system.
Background
A fuel cell is a chemical device that directly converts chemical energy of fuel into electric energy, and is a fourth power generation technology that follows hydroelectric power generation, thermal power generation, and nuclear power generation. In addition, the fuel cell uses fuel and oxygen as raw materials, and has no mechanical transmission part, so the discharged harmful gas is very little, and the service life is long; as fuel cell technology matures, the reliability of its use increases. The fuel cells have been developed and used in more and more countries, and particularly, in China, they have been developed rapidly, and the application range of the fuel cells is wider and wider.
In terms of the current fuel cell technology, there are unavoidable drawbacks, for example, in the fuel cell, the air system is used as one of its core subsystems, and there is still a need to solve the drawbacks of having many components, large volume and high power consumption; in addition, as the fuel cell system breaks through the level of hundreds of kilowatts, the fuel cell system with energy recovery is also becoming more and more accepted in the market, and an expander is needed to improve the working efficiency of the system, but because the fuel cell utilizes the reaction between oxygen in air and fuel hydrogen, a great amount of water exists in the exhaust gas discharged from a galvanic pile, the exhaust gas with great moisture generates liquid after expansion, and the liquid impact is caused to the impeller rotating at high speed, so that the reliability of the expander is reduced, and the service life of the expander is shortened.
Accordingly, those skilled in the art have been directed to develop a fuel cell air system with waste heat recovery and a fuel cell system having the same to solve the above problems.
Disclosure of Invention
The technical purpose is that: the present application is directed to solving the above-mentioned technical problems and providing a fuel cell air system and a fuel cell system.
In order to achieve the technical purpose, the following technical scheme is adopted in the application.
There is provided a fuel cell air system comprising an air cleaner, an air flow meter, an air compressor, an intercooler system, a humidifier, a fuel cell stack and a gas-liquid separation device which are sequentially arranged, wherein,
the air filter is connected with an external exhaust pipe, and is used for treating air before the air enters the fuel cell stack, and particulate matters in the air are filtered through a physical filter layer on one hand, and impurity gases such as SO (sulfur dioxide) are filtered on the other hand 2 And NOx and the like to improve the purity of the reaction gas;
the air flow meter is arranged on the air pipe at the downstream of the air filter, and the air flow meter is used for measuring the air flow of the processed air so as to be used for calibrating the excess coefficient of oxygen entering the fuel cell stack;
the air compressor is arranged on an air pipeline at the downstream of the air filter and the air flowmeter, and filtered air enters the air compressor through the air pipeline to be compressed to form compressed gas;
the intercooling system is arranged at the downstream of the air compressor, is communicated with the air compressor through an air pipeline, exchanges heat to the compressed gas, and cools the compressed high-temperature gas; the cooled gas flows to the humidifier for humidification through an air pipeline;
the humidifier is provided with a dry side and a wet side, the dry side of the humidifier is communicated with the intercooling system and the fuel cell stack, the wet side of the humidifier is communicated with the fuel cell stack and the gas-liquid separation device, the gas cooled by the intercooling system enters the humidifier through the dry side of the humidifier to be humidified, the humidified gas enters the fuel cell stack, the gas reacted by the fuel cell stack is humidified through the humidifier and then flows to the gas-liquid separation device through the wet side of the humidifier;
the gas-liquid separation device is communicated with an air pipeline at the wet side of the humidifier, the reacted gas flows to the gas-liquid separation device through the air pipeline to separate gas and liquid, the separated liquid flows out and is recovered through a liquid pipeline, and the gas is conveyed to the expander through the air pipeline;
and a back pressure valve is arranged between the expander and the gas-liquid separation device, and the back pressure valve provides reaction gas with proper pressure for the fuel cell stack so as to improve the output performance of the fuel cell.
Further, the intercooler system has a first intercooler system that performs heat exchange between the gas and the gas, and a second intercooler system that performs heat exchange between the gas and the liquid.
Still further, first intercooler subsystem includes first intercooler at least, second intercooler subsystem includes the second intercooler at least, first intercooler with the second intercooler is independent to be set up, just the second intercooler sets up first intercooler low reaches, the second intercooler with communicate through the air line between the first intercooler.
Still further, set up first air inlet and first gas outlet on the first intercooler, first air inlet pass through the air line with air compressor intercommunication, first gas outlet pass through the air line with the second intercooler intercommunication, carry the compressed gas that will pass through the cooling once to the second intercooler and carry out the secondary cooling.
Still further, a second air inlet, a second air outlet and a transfusion pipeline are arranged on the second intercooler, the second air inlet is communicated with the first air outlet through an air pipeline, and the second air outlet is communicated with the humidifier through an air pipeline; the infusion pipeline is communicated with the liquid pipeline of the gas-liquid separation device, so that the recycling of cooling liquid is realized.
Still further, the intercooler system has compound intercooler at least, be provided with the cooling chamber in the compound intercooler, the cooling chamber has at least accomplish the air cooling chamber of first intercooler subsystem heat exchange and accomplish the liquid cooling chamber of second intercooler subsystem heat exchange, the air cooling chamber is located the liquid cooling chamber is upstream, just the air cooling chamber with have the air line intercommunication between the liquid cooling chamber.
Still further, the compound intercooler is provided with an air inlet, an air outlet and a transfusion pipeline, the air inlet is positioned on the air cooling cavity and is communicated with the air compressor through an air pipeline, compressed gas is input to the cooling cavity, the air outlet is positioned on the liquid cooling cavity and is communicated with the humidifier through the air pipeline, and compressed gas cooled by the compound intercooler for two times is conveyed to the humidifier; the infusion pipeline is positioned on the liquid cooling cavity and communicated with the liquid pipeline of the gas-liquid separation device, so that the recycling of cooling liquid is realized.
Further, the gas-liquid separation device is connected with the first intercooler system through an air pipeline, the first intercooler system is provided with a third air inlet and a third air outlet, the third air inlet is communicated with the gas-liquid separation device, the third air outlet is located at one side of the first air inlet of the first intercooler or the air inlet of the compound intercooler and is communicated with the expander, separated gas enters the first intercooler system through the third air inlet, separated gas entering the first intercooler system exchanges heat with high-temperature gas at the air inlet of the first intercooler or the air inlet of the compound intercooler, and the temperature is increased when the third air outlet flows out of the expander.
Still further, the backpressure valve is arranged between the first intercooler system and the expander, and the gas flowing out through the third gas outlet is transmitted to the backpressure valve through an air pipeline for control.
The present application also provides a fuel cell system having the fuel cell air system described in the foregoing aspect.
Compared with the prior art, the air system of the fuel cell, provided by the embodiment of the application, ensures good cooling effect by arranging the double cooling system, and simultaneously relieves the problems of high cooling power and poor cooling effect caused by simple air cooling or simple liquid cooling;
the cooled compressed gas flows back to the intercooling system for heating, so that the temperature of the gas entering the expander is increased, the waste heat of the compressed gas is effectively utilized, and the energy recovery efficiency of the expander is improved; meanwhile, the temperature of the gas is improved, the humidity of the gas entering the expander is reduced, the liquid precipitation of the expanded wet gas is prevented, the liquid impact is caused, and the service life and the reliability of the expander are prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 illustrates a schematic diagram of a fuel cell air system in accordance with an embodiment of the present application;
FIG. 2 illustrates a schematic diagram of a fuel cell air system according to another embodiment of the present application;
FIG. 3 shows a schematic diagram of the compound intercooler of FIG. 2;
reference numerals:
air cleaner, 2. Air flow meter, 3. Air compressor, 4. Intercooler system, 40. First intercooler, 400. First air inlet, 403. First air outlet, 401. Third air inlet, 402. Third air outlet, 41. Second intercooler, 410. Second air inlet, 411. Second air outlet, 412. Infusion line, 42. Compound intercooler, 420. Air cooling chamber, 421. Liquid cooling chamber, 422, air inlet, 423, air outlet, 5. Humidifier, 6. Fuel cell stack, 7. Gas-liquid separator, 8. Back pressure valve, 9. Expander, 10. Air line, 11. Liquid line.
In the figure, the broken line is the flow of gas to the fuel cell stack, and the solid line is the flow of gas after the reaction of the fuel cell stack.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The fuel cell air system shown in the present embodiment includes an air cleaner 1, an air flow meter 2, an air compressor 3, an intercooler system 4, a humidifier 5, a fuel cell stack 6, and a gas-liquid separation device 7, which are disposed in this order,
the air filter 1 is connected to an external exhaust pipe, and before the air enters the fuel cell stack 6, the air is treated by the air filter 1, on one hand, particulate matters in the air are filtered by a physical filter layer, and on the other hand, impurity gases such as SO are filtered 2 And NOx and the like to improve the purity of the reaction gas;
an air flow meter 2 is arranged on an air pipeline 10 at the downstream of the air filter 1, and the air flow meter 2 is used for measuring the air flow of the processed air so as to be used for calibrating the excess coefficient of oxygen entering the fuel cell stack;
the air compressor 3 is arranged on an air pipeline 10 at the downstream of the air filter 1 and the air flowmeter 2, and filtered air enters the air compressor 3 through the air pipeline 10 to be compressed to form compressed gas;
the intercooling system 4 is arranged at the downstream of the air compressor 3, the intercooling system 4 is communicated with the air compressor 3 through an air pipeline 10, heat exchange is carried out on the compressed gas, and the temperature of the compressed high-temperature gas is reduced; the cooled gas flows to the humidifier 5 for humidification through the air pipeline 10;
the humidifier 5 is provided with a dry side and a wet side, the dry side of the humidifier 5 is communicated with the intercooling system 4 and the fuel cell stack 6, the wet side of the humidifier 5 is communicated with the fuel cell stack 6 and the gas-liquid separation device 7, the gas cooled by the intercooling system 4 enters the humidifier 5 through the dry side of the humidifier 5 to be humidified, the humidified gas enters the fuel cell stack 6, the gas reacted by the fuel cell stack 6 is humidified through the humidifier 5 and then flows to the gas-liquid separation device 7 through the wet side of the humidifier 5; the method comprises the steps of carrying out a first treatment on the surface of the
The gas-liquid separation device 7 is communicated with an air pipeline 10 at one side of the humidifier 5, the reacted gas flows to the gas-liquid separation device 7 through an air pipeline 10 at one side of the output to separate gas and liquid, the separated liquid flows out and is recovered through a liquid pipeline 12, and the gas is conveyed to the expander 9 through the air pipeline 10;
a back pressure valve 8 is arranged between the expander 9 and the gas-liquid separation device 7, and the back pressure valve 8 provides a reaction gas with proper pressure for the fuel cell stack 6 so as to improve the output performance of the fuel cell.
More specifically, the following description is made:
in this embodiment, the structures of the air filter 1, the air flow meter 2 and the air compressor 3 are all the prior art solutions, and in this embodiment, the structures of the air filter 1, the air flow meter 2 and the air compressor 3 are consistent with the conventional structures.
The intercooler system 4 is provided with a first intercooler system and a second intercooler system, the first intercooler system performs heat exchange between gas and gas, the second intercooler system performs heat exchange between gas and liquid, and the dual cooling system ensures good cooling effect and simultaneously relieves the problems of high cooling power and poor cooling effect caused by simple air cooling or simple liquid cooling.
In one embodiment, as shown in fig. 1, the first intercooler system at least includes a first intercooler 40, the second intercooler system at least includes a second intercooler 41, the first intercooler 40 and the second intercooler 41 are independently disposed, and the second intercooler 41 is disposed downstream of the first intercooler 40, the second intercooler 41 is communicated with the first intercooler 40 through the air pipeline 10, and the first intercooler 40 and the second intercooler 41 adopt a single air cooling system and a liquid cooling system, and the specific structure of the first intercooler 40 and the second intercooler 41 can refer to the structure of a single air cooling intercooler and a single liquid cooling intercooler in the prior art.
The first intercooler 40 is provided with a first air inlet 400 and a first air outlet 403, the first air inlet 400 is communicated with the air compressor 3 through an air pipeline 10, the first air outlet 403 is communicated with the second intercooler 41 through the air pipeline 10, and compressed gas subjected to primary cooling is conveyed to the second intercooler 41 for secondary cooling.
The second intercooler 41 is provided with a second air inlet 410, a second air outlet 411 and a transfusion pipeline 412, the second air inlet 410 is communicated with the first air outlet 403 through an air pipeline 10, the second air outlet 411 is communicated with the humidifier 5 through the air pipeline 10 to humidify compressed gas, and the humidified compressed gas enters the fuel cell stack 6 for reaction; the liquid delivery pipeline 412 has two pipeline flow directions of liquid inlet and liquid outlet, and the liquid outlet pipeline of the liquid delivery pipeline 412 is communicated with the liquid pipeline 11 of the gas-liquid separation device 7, so that the recycling of cooling liquid is realized.
In another embodiment, as shown in fig. 2, the intercooler system 4 at least has a composite intercooler 42, where the composite intercooler 42 is an intercooler device that integrates air cooling and liquid cooling, and in conjunction with fig. 3, a cooling cavity is disposed in the composite intercooler 42, where the cooling cavity has at least an air cooling cavity 420 that completes heat exchange of the first intercooler system and a liquid cooling cavity 421 that completes heat exchange of the second intercooler system, the air cooling cavity 420 is located upstream of the liquid cooling cavity 421, and an air pipeline 10 is provided between the air cooling cavity 420 and the liquid cooling cavity 421.
The compound intercooler 42 is provided with an air inlet 422, an air outlet 423 and a transfusion pipeline 412, the air inlet 422 is positioned on the air cooling cavity 420 and is communicated with the air compressor 3 through the air pipeline 10, compressed gas is input into the cooling cavity, the air outlet 423 is positioned on the liquid cooling cavity 421 and is communicated with the humidifier 5 through the air pipeline 10, the compressed gas of the compound intercooler 42 after being cooled twice is conveyed to the humidifier 5 for humidification, and the humidified compressed gas enters the fuel cell stack 6 for reaction; the liquid delivery pipeline 412 has two pipeline flow directions of liquid inlet and liquid outlet, and the liquid outlet pipeline of the liquid delivery pipeline 412 is communicated with the liquid pipeline 11 of the gas-liquid separation device 7, so that the recycling of cooling liquid is realized.
The humidifier 5 of the air system adopts the existing humidifier structure, the humidifier 5 is provided with a dry side and a wet side, the dry side of the humidifier 5 is communicated with the intercooling system 4 and the fuel cell stack 6, the wet side of the humidifier 5 is communicated with the fuel cell stack 6 and the gas-liquid separation device 7, the gas cooled by the intercooling system 4 enters the humidifier 5 through the dry side of the humidifier 5 to be humidified, the humidified gas enters the fuel cell stack 6, the gas reacted by the fuel cell stack 6 is humidified through the humidifier 5, and then flows to the gas-liquid separation device 7 through the wet side of the humidifier 5.
The gas-liquid separation device 7 is connected with the first intercooler system 40 through an air pipeline 10, the first intercooler system 40 is provided with a third air inlet 401 and a third air outlet 402, the third air inlet 401 is communicated with the gas-liquid separation device 7, the third air outlet 402 is positioned at one side of the first air inlet 400 of the first intercooler system 40 or the air inlet 422 of the compound intercooler 42 and is communicated with the expander 9, separated gas enters the first intercooler system through the third air inlet 401, the separated gas entering the first intercooler system exchanges heat with high-temperature gas at the first air inlet, the temperature is increased when the third air outlet flows out to the expander 9, the cooled compressed gas flows back to the intercooler system 4 to heat, the temperature of the gas entering the expander 9 is increased, the waste heat of the compressed gas is effectively utilized, and the energy recovery efficiency of the expander 9 is improved; meanwhile, the temperature of the gas is increased, the humidity of the gas entering the expander 9 is reduced, the liquid precipitation of the expanded wet gas is prevented, the liquid impact is caused, and the service life and reliability of the expander 9 are prolonged.
The back pressure valve 8 is arranged between the first intercooler system 40 and the expander 9, and the gas flowing out through the third gas outlet 402 is transmitted to the back pressure valve 8 through the air pipeline 10 for control.
The present application also provides a fuel cell system having the fuel cell air system provided in the foregoing aspect.
It should be understood that throughout the specification and claims, the words "comprise," "include," "have," and the like are to be construed in an inclusive sense, rather than an exclusive or exhaustive sense, unless the context clearly requires otherwise. That is, it is meant to "include, but not limited to. As generally used herein, the term "connected" refers to two or more structures that may be connected directly or through one or more intervening structures. Likewise, as generally used herein, the term "connected" refers to two or more structures that may be connected directly or through one or more intervening structures.
While the application has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood by those skilled in the art that the application is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An air system of fuel cell comprises an air filter, an air flowmeter, an air compressor, an inter-cooling system, a humidifier, a fuel cell stack and a gas-liquid separation device which are arranged in sequence,
the air filter is connected with the external exhaust pipe, and before the air enters the fuel cell stack, the air is treated through the air filter, on one hand, particulate matters in the air are filtered through the physical filter layer, and on the other hand, impurity gas is subjected to chemical adsorption, so that the purity of the reaction gas is improved;
the air flow meter is arranged on the air pipe at the downstream of the air filter, and the air flow meter is used for measuring the air flow of the processed air so as to be used for calibrating the excess coefficient of oxygen entering the fuel cell stack;
the air compressor is arranged on an air pipeline at the downstream of the air filter and the air flowmeter, and filtered air enters the air compressor through the air pipeline to be compressed to form compressed gas;
the intercooling system is arranged at the downstream of the air compressor, is communicated with the air compressor through an air pipeline, exchanges heat with the compressed gas, and cools the compressed high-temperature gas; the cooled gas flows to the humidifier for humidification through an air pipeline;
the humidifier is provided with a dry side and a wet side, the dry side of the humidifier is communicated with the intercooling system and the fuel cell stack, the wet side of the humidifier is communicated with the fuel cell stack and the gas-liquid separation device, the gas cooled by the intercooling system enters the humidifier through the dry side of the humidifier to be humidified, the humidified gas enters the fuel cell stack, the gas reacted by the fuel cell stack is humidified through the humidifier and then flows to the gas-liquid separation device through the wet side of the humidifier;
the gas-liquid separation device is communicated with an air pipeline on the wet side of the humidifier, the reacted gas flows to the gas-liquid separation device through the pipeline to separate gas and liquid, the separated liquid flows out and is recovered through a liquid pipeline, and the gas is conveyed to the expander through the air pipeline;
and a back pressure valve is arranged between the expander and the gas-liquid separation device, and the back pressure valve provides reaction gas with proper pressure for the fuel cell stack so as to improve the output performance of the fuel cell.
2. The fuel cell air system of claim 1, wherein the intercooler system has a first intercooler system that exchanges heat between gas and a second intercooler system that exchanges heat between gas and liquid.
3. The fuel cell air system of claim 2, wherein the first intercooler system includes at least a first intercooler and the second intercooler system includes at least a second intercooler, the first intercooler being disposed independently of the second intercooler and the second intercooler being disposed downstream of the first intercooler, the second intercooler being in communication with the first intercooler via an air line.
4. The fuel cell air system according to claim 3, wherein a first air inlet and a first air outlet are provided on the first intercooler, the first air inlet is communicated with the air compressor through an air pipeline, the first air outlet is communicated with the second intercooler through an air pipeline, and the compressed gas subjected to primary cooling is conveyed to the second intercooler for secondary cooling.
5. The fuel cell air system according to claim 4, wherein a second air inlet, a second air outlet and an infusion line are provided on the second intercooler, the second air inlet is communicated with the first air outlet through an air line, and the second air outlet is communicated with the humidifier through an air line; the infusion pipeline is communicated with the liquid pipeline of the gas-liquid separation device, so that the recycling of cooling liquid is realized.
6. The fuel cell air system as defined in claim 2, wherein the intercooler system has at least a compound intercooler having a cooling chamber disposed therein, the cooling chamber having at least an air cooling chamber for completing heat exchange of the first intercooler system and a liquid cooling chamber for completing heat exchange of the second intercooler system, the air cooling chamber being located upstream of the liquid cooling chamber, and an air line communication being provided between the air cooling chamber and the liquid cooling chamber.
7. The fuel cell air system according to claim 6, wherein the compound intercooler is provided with an air inlet and an air outlet and a transfusion pipeline, the air inlet is positioned on the air cooling cavity and is communicated with the air compressor through an air pipeline, compressed gas is input into the cooling cavity, the air outlet is positioned on the liquid cooling cavity and is communicated with the humidifier through an air pipeline, and the compressed gas cooled by the compound intercooler for two times is conveyed to the humidifier for humidification; the infusion pipeline is positioned on the liquid cooling cavity and communicated with the liquid pipeline of the gas-liquid separation device, so that the recycling of cooling liquid is realized.
8. The fuel cell air system according to claim 4, wherein the gas-liquid separation device is connected to the first intercooler system through an air line, the first intercooler system is provided with a third air inlet and a third air outlet, the third air inlet is in communication with the gas-liquid separation device, the third air outlet is located at a side of the first air inlet of the first intercooler or an air inlet of the compound intercooler and is in communication with the expander, the separated gas enters the first intercooler system through the third air inlet, the separated gas entering the first intercooler system exchanges heat with the high-temperature gas at the first air inlet of the first intercooler or the air inlet of the compound intercooler, and the temperature increases when the third air outlet flows out to the expander.
9. The fuel cell air system according to claim 8, wherein the back pressure valve is provided between the first intercooler system and the expander, and the gas flowing out through the third gas outlet is transmitted to the back pressure valve through an air line for control.
10. A fuel cell system having a fuel cell air system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095412.5U CN220672621U (en) | 2023-08-07 | 2023-08-07 | Fuel cell air system and fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322095412.5U CN220672621U (en) | 2023-08-07 | 2023-08-07 | Fuel cell air system and fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220672621U true CN220672621U (en) | 2024-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322095412.5U Active CN220672621U (en) | 2023-08-07 | 2023-08-07 | Fuel cell air system and fuel cell system |
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| Country | Link |
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| CN (1) | CN220672621U (en) |
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2023
- 2023-08-07 CN CN202322095412.5U patent/CN220672621U/en active Active
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