CN115188986A - Fuel cell engine - Google Patents
Fuel cell engine Download PDFInfo
- Publication number
- CN115188986A CN115188986A CN202210230288.6A CN202210230288A CN115188986A CN 115188986 A CN115188986 A CN 115188986A CN 202210230288 A CN202210230288 A CN 202210230288A CN 115188986 A CN115188986 A CN 115188986A
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- CN
- China
- Prior art keywords
- fuel cell
- air
- air inlet
- fan assembly
- cell engine
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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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- 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
Abstract
A fuel cell engine includes an intake passage, a fan assembly, and a fuel cell. The air inlet channel is communicated with an air inlet of the fuel cell engine and comprises an air inlet end and an air outlet end; the air outlet path of the fan assembly faces the air inlet along the air inlet end; the fuel cell comprises an air inlet and an air outlet, the air inlet is arranged on the air outlet path, and the extending direction of the air inlet is the same as that of the air outlet path. The air flow generated by the fan assembly can supply air to the fuel cell, so that the air inlet efficiency and the heat dissipation efficiency are improved, and the waste of air kinetic energy is reduced. The air flow of the fuel cell engine is combined with the air side air flow of the fuel cell, so that the air kinetic energy generated by the fan assembly during air cooling and air inlet of the fuel cell is fully utilized, and the energy utilization rate of the fuel cell is improved.
Description
Technical Field
The present invention relates to a fuel cell generator.
Background
The proton exchange membrane fuel cell mainly comprises an air-cooled fuel cell and a liquid-cooled fuel cell at present, wherein the air-cooled fuel cell has a simple structure and compact modules, so that the volume of the fuel cell can be effectively reduced. At present, the fan of the air-cooled fuel cell has low operating efficiency, drives the air flow rate to be slow, causes insufficient heat exchange, insufficient air supply and limits the power of the fuel cell, and the power of a single air-cooled fuel cell pile is less than 5kW. Meanwhile, the air flow power generated by the fan during working is not utilized, so that energy waste is caused.
Currently, in the design of fuel cell structures and power systems, fuel cell modules and engine modules are generally designed separately. The fuel cell is independently designed as a power device, and the engine module is independently designed by adopting a motor. For example, in the related patent "integrated fuel cell" (patent publication No. CN114068972 a), a blower is designed separately for the fuel cell to supply air, and this design fails to fully utilize the kinetic energy of the air in the power system, which additionally increases the energy consumption. In the patent "fuel cell system" (publication No. CN114068992 a), an air pump is also separately provided for fuel cell intake, increasing the system energy consumption. In the invention patent "a two-stage air compression system with radial and axial diffusers" (patent publication No. CN109268295 a), an independent high-pressure air inlet device is designed for fuel cell air inlet to improve the working efficiency of the fuel cell, but the high-pressure air inlet kinetic energy is wasted. In the utility model discloses a "a middle and high pressure fuel cell engine" (the patent of publication No. CN 206878107U), designed a fuel cell who adopts middle and high pressure hydrogen source, it has still adopted independent air inlet unit on the air source to do not introduce the engine module in the system, carry out independent design respectively with engine module and fuel cell module. In summary, there is no structural design for uniformly designing the engine module and the fuel cell power module, so as to increase the system energy utilization rate and reduce the waste of air kinetic energy.
Disclosure of Invention
The invention provides a fuel cell engine, aiming at solving the technical problem of energy waste of a fan in the prior art.
The invention solves the technical problems through the following technical scheme:
a fuel cell engine comprising:
the air inlet channel is communicated with an air inlet of the fuel cell engine and comprises an air inlet end and an air outlet end;
the air outlet path of the fan assembly faces the air inlet along the air inlet end;
the fuel cell comprises an air inlet, the air inlet is arranged on the air outlet path, and the extending direction of the air inlet is the same as that of the air outlet path.
In the technical scheme, the air flow generated by the fan assembly can supply air to the fuel cell, so that the air inlet efficiency and the heat dissipation efficiency are improved, and the waste of air kinetic energy is reduced.
Preferably, the fuel cell further includes an air outlet, and the air outlet is disposed on the air outlet path.
In the technical scheme, the waste gas is conveniently discharged from the air outlet, and the heat of the air outlet is favorably taken away.
Preferably, the air intake passage is provided in a housing of the fuel cell engine, and the air inlet and the air outlet are both provided in the air intake passage.
In the technical scheme, the fuel cell is arranged inside the air inlet channel, so that the influence of external air flow on air inlet and air outlet of the fuel cell can be avoided, and meanwhile, the interference of other objects in the external environment is avoided. When the fan component works, air is driven to enter the air inlet channel, flows through the fuel cell, cools the fuel cell and provides oxygen.
Preferably, the fan assembly is arranged in the air inlet channel, and an air outlet end of the air inlet channel is communicated with an air inlet of the fuel cell engine.
In the technical scheme, the leakage of a part of gas can be avoided, and the influence of the external environment on the airflow of the fan assembly is avoided.
Preferably, the fuel cell further includes a fuel cell body that is also provided in the intake passage.
In the technical scheme, the fuel cell body can also be cooled through the airflow in the air inlet channel, so that the over-high temperature of the fuel cell is avoided, and the discharge efficiency of the fuel cell is improved.
Preferably, the fan assembly comprises a motor and a fan propeller, the motor is conical in shape, the small diameter end of the cone faces the air inlet end, and the large diameter end of the cone is far away from the air inlet end.
In the technical scheme, the motor is conical in shape, so that the influence of the motor on the airflow generated by the fan assembly can be reduced. And meanwhile, the motor can be cooled by the airflow in the air inlet channel.
Preferably, the fan assembly further comprises a fixing spoke, the fixing spoke is arranged in the air inlet channel, the motor is arranged on the fixing spoke, and the output end of the motor is connected with the fan propeller.
In this technical scheme, through fixed spoke fixed motor, reduce the interference to the air flow in the inlet channel.
Preferably, the electric vehicle further comprises a storage battery, and the storage battery is electrically connected with the motor.
In the technical scheme, the storage battery is additionally arranged, so that the motor can be powered when the fuel cell is not started.
Preferably, the battery includes a charging module, and the fuel cell is in electrical communication with the charging module.
In the technical scheme, the fuel cell can supply power to the charging module.
Preferably, the fuel cell is electrically connected to the motor.
In the technical scheme, the fuel cell and the storage battery can supply power to the motor, and the fuel cell or the storage battery can be respectively started to supply power in different occasions, so that the power supply efficiency is improved.
The positive progress effects of the invention are as follows:
the air flow generated by the fan assembly can supply air to the fuel cell, so that the air inlet efficiency and the heat dissipation efficiency are improved, and the waste of air kinetic energy is reduced. The air flow of the fuel cell engine is combined with the air side air flow of the fuel cell, so that the air kinetic energy generated by the fan assembly during air cooling and air intake of the fuel cell is fully utilized, and the energy utilization rate of the fuel cell is improved.
Drawings
Fig. 1 is a sectional view of a fuel cell engine according to an embodiment of the present invention.
Fig. 2 is a partial structural view of a fuel cell engine according to an embodiment of the present invention.
Description of the reference numerals
Air inlet channel 1, air inlet end 11 and air outlet end 12
Fan assembly 3, motor 31, fan propeller 32, fixing spokes 33
Engine housing 5
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the present invention discloses a fuel cell engine including an intake passage 1, a fan assembly 3, and a fuel cell 4. The air inlet channel 1 comprises an air inlet end 11 and an air outlet end 12, and the air inlet channel 1 is communicated with an air inlet of the fuel cell engine. The air outlet path of the fan assembly 3 faces the air inlet along the air inlet end 11. The fuel cell 4 includes an air inlet 41 and an air outlet 42, the air inlet 41 is disposed on the air outlet path, and the air inlet 41 extends in the same direction as the air outlet path. The air flow generated by the fan assembly 3 can supply air to the fuel cell 4, thereby improving the air intake efficiency and the heat dissipation efficiency and reducing the waste of air kinetic energy. The air flow of the fuel cell engine is combined with the air side air flow of the fuel cell 4, the air kinetic energy generated by the fan assembly 3 during air cooling and air intake of the fuel cell 4 is fully utilized, and the energy utilization rate of the fuel cell 4 is improved.
The fuel cell 4 comprises a line 44, which line 44 is supplied with hydrogen, which hydrogen in the line 44 is used for combustion with air for generating electrical energy. The piping 44 connects the hydrogen cylinder 45 and the fuel cell body 43.
As shown in fig. 1 and 2, the air outlet 42 of the fuel cell 4 is also disposed on the air outlet path of the fan assembly 3, so that the air outlet 42 can exhaust the exhaust air, and the heat of the air outlet 42 can be taken away.
As shown in fig. 1 and 2, an intake passage 1 is provided in a fuel cell engine case 5, and an air inlet 41 and an air outlet 42 of a fuel cell 4 are provided in the intake passage 1. The air inlet 41 and the air outlet 42 of the fuel cell 4 are disposed inside the air intake channel 1, so as to avoid the influence of the external air flow on the air intake and the air outtake of the fuel cell 4, and avoid the interference of other objects in the external environment on the air inlet 41 and the air outlet 42. When the fan assembly 3 works, air is driven into the air inlet channel 1, and flows through the fuel cell 4 to cool the fuel cell 4 and provide oxygen. As shown in fig. 1 and 2, the fan assembly 3 is disposed in the air inlet channel 1, and the air outlet end 12 of the air inlet channel 1 is communicated with the air inlet of the fuel cell engine. It is possible to prevent a part of the gas from leaking and to prevent the airflow of the fan assembly 3 from being affected by the external environment.
Regarding the positional relationship between the fan assembly 3 and the intake passage 1, in other embodiments, the fan assembly 3 is disposed outside the intake end 11 of the intake passage 1 at a distance from the intake end 11, and the air inlet 41 of the fuel cell 4 is disposed at a position between the intake end 11 and the fan assembly 3, so that the wind generated by the fan assembly 3 can enter the intake passage 1 through the intake end 11 and can also enter the fuel cell 4 through the air inlet 41.
Furthermore, in other embodiments, the air inlet 41 of the fuel cell 4 may be disposed outside the air inlet 11, and the air inlet 41 is disposed between the fan assembly 3 and the air inlet channel 1, so that when the fan assembly 3 is operated, the air flow can be brought into the air inlet 41 to cool the fuel cell 4 and provide oxygen. As shown in fig. 1 and 2, the fuel cell body 43 of the fuel cell 4 is also provided in the intake passage 1. The fuel cell body 43 can also be cooled by the air flow in the air inlet channel 1, thereby avoiding the over-high temperature of the fuel cell 4 and improving the discharging efficiency of the fuel cell 4.
As shown in fig. 1 and 2, the fan assembly 3 includes a motor 31 and a fan propeller 32, the motor 31 has a tapered shape with a small diameter end facing the air intake end 11 and a large diameter end facing away from the air intake end 11. The motor 31 has a tapered shape, so that the influence of the motor 31 on the airflow generated by the fan assembly 3 can be reduced. While the air flow in the intake passage 1 can cool the motor 31. The fan assembly 3 further comprises a fixed spoke 33, the fixed spoke 33 is arranged in the air inlet channel 1, the motor 31 is arranged on the fixed spoke 33, and the output end of the motor 31 is communicated with the fan propeller 32. The motor 31 is fixed by the fixing spokes 33, reducing interference with the flow of air in the intake passage 1.
As shown in fig. 1 and 2, in the present embodiment, the fuel cell engine further includes a battery 2, and the arrangement position of the battery 2 with respect to the engine case 5 and the hydrogen cylinders 45 is as shown in fig. 1, and the structural arrangement layout can make the structure more compact. The battery 2 also comprises a charging module which, by means of its connection to the fuel cell 4, enables the fuel cell 4 to charge the battery 2 during operation. The storage battery 2 in the embodiment is electrically connected to the motor 31, and the structural arrangement scheme can enable the storage battery 2 to supply power to the motor 31 when the fuel cell 4 is not started. The fuel cell 4 is electrically connected with the motor 31, the fuel cell 4 and the storage battery 2 can supply power to the motor 31, and the fuel cell 4 or the storage battery 2 can be respectively started to supply power in different occasions, so that the power supply efficiency is improved.
While specific embodiments of the invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A fuel cell engine, comprising:
the air inlet channel is communicated with an air inlet of the fuel cell engine and comprises an air inlet end and an air outlet end;
the air outlet path of the fan assembly faces the air inlet along the air inlet end;
the fuel cell comprises an air inlet, the air inlet is arranged on the air outlet path, and the extending direction of the air inlet is the same as that of the air outlet path.
2. The fuel cell engine of claim 1, wherein the fuel cell further comprises an air outlet disposed on the outlet air path.
3. The fuel cell engine of claim 2, wherein the air intake passage is provided in a housing of the fuel cell engine, and the air inlet and the air outlet are both provided in the air intake passage.
4. The fuel cell engine of claim 1, wherein the fan assembly is disposed within the air intake passage, and an air outlet of the air intake passage is in communication with an air intake of the fuel cell engine.
5. The fuel cell engine of claim 1, wherein the fuel cell further comprises a fuel cell body also disposed within the intake passage.
6. The fuel cell engine of claim 1, wherein the fan assembly includes an electric motor and a fan impeller, the electric motor having a tapered shape with a smaller diameter end facing the air intake end and a larger diameter end facing away from the air intake end.
7. The fuel cell engine of claim 6, wherein the fan assembly further comprises a fixed spoke disposed within the air intake passage, the motor is disposed on the fixed spoke, and an output of the motor communicates with the fan impeller.
8. The fuel cell engine of claim 6, further comprising a battery, the battery being electrically connected to the electric machine.
9. The fuel cell engine of claim 8, wherein the battery includes a charging module, and the fuel cell is electrically connected to the charging module.
10. The fuel cell engine of claim 9, wherein the fuel cell is electrically connected to the electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230288.6A CN115188986A (en) | 2022-03-10 | 2022-03-10 | Fuel cell engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230288.6A CN115188986A (en) | 2022-03-10 | 2022-03-10 | Fuel cell engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115188986A true CN115188986A (en) | 2022-10-14 |
Family
ID=83512362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210230288.6A Pending CN115188986A (en) | 2022-03-10 | 2022-03-10 | Fuel cell engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115188986A (en) |
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2022
- 2022-03-10 CN CN202210230288.6A patent/CN115188986A/en active Pending
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