CN101677126A - Fuel cell system and operating method thereof - Google Patents
Fuel cell system and operating method thereof Download PDFInfo
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- CN101677126A CN101677126A CN200810149001A CN200810149001A CN101677126A CN 101677126 A CN101677126 A CN 101677126A CN 200810149001 A CN200810149001 A CN 200810149001A CN 200810149001 A CN200810149001 A CN 200810149001A CN 101677126 A CN101677126 A CN 101677126A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention relates to a fuel cell system and an operating method thereof, and the operating method comprises the following steps: using an ignition component for igniting a fuel, leading the fuel to carry out combustion heat release reaction in a combustion part, providing raw materials for recombination reaction into an evaporation part for carrying out gasification, conducting heat generatedby the combustion heat release reaction into a reaction part, introducing the raw materials for the recombination reaction after the gasification into the reaction part for carrying out the recombination reaction and producing hydrogen, and introducing the hydrogen into a fuel cell unit for carrying out power generation. Accordingly, the fuel cell system and the operating method thereof provided by the invention can shorten the startup time and do not need to consume the additional power.
Description
Technical field
The invention relates to a kind of fuel cell system and How It Works thereof, especially refer to a kind of fuel cell system and How It Works thereof that need not additive decrementation electric power when shortening start-up time and startup that be applicable to.
Background technology
Fuel cell is different with general battery commonly used, and fuel cell is stored energy source not, but the conversion energy.Fuel cell is a kind of chemical energy to be converted into the device of electric energy in fact, be to utilize hydrogen to produce the energy with combining of oxygen to generate electricity, and last product is a water, therefore, compared to general battery, fuel cell can significantly reduce the pollution to environment, compliance with environmental protection requirements.
General fuel cell system includes a reformer and a battery pack.Reformer is to be used for converting fuel to hydrogen, uses for battery pack, and battery pack then utilizes hydrogen and oxygen to carry out electrochemical reaction, to produce electric current.The working temperature of general reformer is about 250 ℃, and wherein, traditional approach is to utilize secondary cell to connect heating plate, after reformer is warming up to working temperature, make reformer begin to produce H-H reaction, the hydrogen that last burning does not again use, the heat that is generated by burning is kept the temperature of reformer.In addition, if the employed battery pack of fuel cell system is high-temperature battery group (working temperature is about 120 ℃ to 180 ℃), then need further reach the heat energy of reformer battery pack or utilize the electric heating piece heating, so that battery pack reaches working temperature.
As from the foregoing, start general fuel cell system and need consume extra electric power, and start-up time is longer, especially, when system's wattage is high more, the electric power that then start to consume can be big more, and need be used the bigger secondary cell of capacitance, the low shortcoming of system power and energy density is arranged.
Summary of the invention
The object of the present invention is to provide a kind of fuel cell system, utilize the chemical combustion mode to replace tradition electric energy heat production, start required heat energy so that recombining reaction to be provided, and then reduce the power consumption when starting, and shorten start-up time.
For achieving the above object, fuel cell system provided by the invention comprises: the unit that ignites, comprise ignition module, and wherein, this ignition module is to be used for lighting the fuel that is directed in the unit that ignites, and satisfies and generation flame; The recombining reaction unit, comprise burning portion, evaporation part and reacting part, wherein, burning portion is connected in the unit that ignites, to receive fuel in the exothermic reaction of burning of burning portion, and the evaporation part is the recombining reaction raw material that is used for vaporizing and is directed in the evaporation part, and reacting part is connected in burning portion and evaporation part, with the reception recombining reaction raw material that the evaporation part was provided, and by the burning heat that exothermic reaction produced, carry out recombining reaction in reacting part, to produce hydrogen; And cell of fuel cell, be connected with the reacting part of recombining reaction unit, generate electricity to receive the hydrogen that reacting part was provided.
In view of the above, fuel cell system provided by the present invention just can directly provide heat energy by the chemical combustion mode, to start recombining reaction, need not consume extra electric power, in view of the above, can improve the shortcoming that tradition utilizes the electric energy heat production to be derived.
In fuel cell system of the present invention, this unit that ignites can comprise that also a flame prevents assembly, is used for intercepting flame and enters burning portion, to increase the fail safe of fuel cell system.
In fuel cell system of the present invention, this cell of fuel cell can be low form cell of fuel cell (working temperature is about 40 ℃ to 80 ℃) or high-temperature fuel cell unit (working temperature is about 120 ℃ to 180 ℃).If this cell of fuel cell is the high-temperature fuel cell unit, fuel cell system then of the present invention also can comprise a heat exchange unit, provide with the tail gas used heat after the exothermic reaction of will burning and to give cell of fuel cell, make fuel cell arrive working temperature (about 120 ℃ to 180 ℃).In view of the above, fuel cell system of the present invention just can make full use of the heat that chemical reaction generates, and need not to provide additional energy again, and then reduces the energy that the fuel cell system running is consumed.In addition, the structure of this cell of fuel cell there is no special restriction, and it can be the structure of any known fuel cell, and for example, it comprises a negative electrode, a mea and an anode of repeatedly putting in regular turn.
In fuel cell system of the present invention, this fuel is preferably flashing point at the fuel below 25 ℃, wherein, the group that formed of the optional free hydrogen of this fuel, alkyl compound, vinyl compound, acetylene compound, ether compound, ketone compounds and composition thereof.Particularly, in the present invention, this fuel can be hydrogen, methane, ethane, propane, butane, pentane, ether, acetone, ethene, acetylene or its mixture, is preferably propane, butane or its mixture.
In fuel cell system of the present invention, this recombining reaction raw material is any required raw material of hydrogen recombining reaction that produces, for example, can use methyl alcohol and water as the recombining reaction raw material, under about 200 ℃ to 300 ℃ temperature, carry out the recombining reaction of methyl alcohol and water, and then produce hydrogen.
In fuel cell system of the present invention, can include the combustion reaction catalyst in this burning portion, carry out with catalyst combustion reaction.In addition, also can include the recombining reaction catalyst in this reacting part, with the carrying out of catalysis recombining reaction.
In view of the above, the present invention also provides a kind of How It Works of fuel cell system, comprising: by ignition module, light a fuel, satisfy and produce flame, and make the exothermic reaction of in burning portion, burning of this fuel, and provide the recombining reaction raw material in the evaporation part, to vaporize; The burning heat that exothermic reaction produced is conducted in the reacting part, and in the feeding of the recombining reaction raw material after will the vaporizing reacting part,, produce hydrogen to carry out recombining reaction; And hydrogen imported in the cell of fuel cell, to generate electricity.
The How It Works of fuel cell system of the present invention also can comprise: after fire fuel, prevent assembly by flame, intercept flame and enter in the burning portion.
In addition, if fuel cell system of the present invention is to use the high-temperature fuel cell unit, then this How It Works also can comprise: by heat exchange unit, the tail gas used heat after the burning exothermic reaction provided give cell of fuel cell.
In sum, the present invention utilizes the chemical combustion mode to replace tradition electric energy heat production, starts required heat energy so that recombining reaction to be provided, and then reduces the power consumption when starting, and shorten start-up time.
Description of drawings
Fig. 1 is the fuel cell system operation workflow figure of a preferred embodiment of the present invention.
Fig. 2 is the fuel cell system operation workflow figure of another preferred embodiment of the present invention.
Primary clustering symbol description in the accompanying drawing
Unit 1 ignition module, 11 flames that ignite prevent assembly 12
Recombining reaction unit 2 burning portions 21 evaporation parts 22
Reacting part 23 cell of fuel cell 3 negative electrodes 31
Film battery group 32 anodes 33 heat exchange units 4
Embodiment
Embodiment 1
Please refer to Fig. 1, be the operation workflow figure of present embodiment fuel cell system.
As shown in Figure 1, the fuel cell system of present embodiment comprises: unit 1 ignites, it comprises that ignition module 11 and flame prevent assembly 12, wherein, this ignition module 11 is to be used for lighting the fuel that is directed in this unit 1 that ignites, satisfy and generation flame, and this flame prevents that assembly 12 from being to be used for intercepting flame to enter follow-up burning portion 21; Recombining reaction unit 2, it comprises burning portion 21, evaporation part 22 and reacting part 23, wherein, burning portion 21 is connected in the unit 1 that ignites, to receive fuel in burning portion 21 exothermic reaction of burning, and the recombining reaction raw material that evaporation part 22 is used for vaporizing and is directed in evaporation part 22, and reacting part 23 is connected in burning portion 21 and evaporation part 22, receiving the recombining reaction raw material that evaporation part 22 is provided, and by the burning heat that exothermic reaction produced, carry out recombining reaction in reacting part 23, to produce hydrogen; And cell of fuel cell 3, being connected with the reacting part 23 of recombining reaction unit 2, this hydrogen that is provided with reception reacting part 23 generates electricity.
In present embodiment, the employed fuel of this fuel cell system is the mixture of propane and butane; This ignition module 11 is an ignition; Include the combustion reaction catalyst in this burning portion 21, with the carrying out of catalytic combustion exothermic reaction; This recombining reaction raw material comprises methyl alcohol and water; Include the recombining reaction catalyst in this reacting part 23, with the carrying out of catalysis recombining reaction; This cell of fuel cell 3 comprises a negative electrode 31, a mea 32 and an anode 33 of repeatedly putting in regular turn, and it is the low form cell of fuel cell, and working temperature is about 40 ℃ to 80 ℃.
In view of the above, the How It Works of present embodiment fuel cell system is as described below.
At first, please refer to Fig. 1, when system start-up, first bubbling air imports fuel in the unit 1 that ignites again; Then,, light the fuel that imports in the unit 1 that ignites, satisfy and generation flame by ignition module 11.Thereafter, utilize flame to prevent assembly 12, flame is intercepted outside recombining reaction unit 2, and fuel is fed in the burning portion 21 of recombining reaction unit 2, under the existence of combustion reaction catalyst, the exothermic reaction of burning.Simultaneously, the recombining reaction raw material is directed in the evaporation part 22 of recombining reaction unit 2, to carry out pervaporation step.Then, the burning heat that exothermic reaction produced is conducted in the reacting part 23 of recombining reaction unit 2, after making reacting part 23 arrive working temperature (about 200 ℃ to 300 ℃), recombining reaction raw material after will vaporizing again feeds in the reacting part 23, under the existence of recombining reaction catalyst, carry out recombining reaction, to produce hydrogen.At last, the hydrogen that reacting part 23 is produced imports the anode 33 of cell of fuel cell 3, to generate electricity.At this, after system reaches balance, can stop the conveying of fuel, and, get final product with the working temperature of keeping recombining reaction by the exothermic reaction of burning of the intact reorganization gas (hydrogen) of unreacted.
Embodiment 2
The fuel cell system of present embodiment and How It Works and embodiment 1 are roughly the same, only difference be in, the employed cell of fuel cell 3 of present embodiment fuel cell system is the high-temperature fuel cell unit, its working temperature is about 120 ℃ to 180 ℃, in view of the above, please refer to Fig. 2, the fuel cell system of present embodiment also comprises a heat exchange unit 4, provide with the tail gas used heat after the exothermic reaction of further will burning and to give this high-temperature fuel cell unit, make it arrive working temperature.
The foregoing description is only given an example for convenience of description, and the interest field that the present invention advocated is from should but not only limiting to the foregoing description with described being as the criterion of claim scope of application.
Claims (25)
1, a kind of fuel cell system comprises:
One unit that ignites comprises an igniting assembly, and wherein, this ignition module is used for lighting a fuel that is directed in this unit that ignites, and satisfies and produces flame;
One recombining reaction unit, comprise a burning portion, an evaporation part and a reacting part, wherein, this burning portion is connected in this unit that ignites, to receive this fuel in the exothermic reaction of burning of this burning portion, and the recombining reaction raw material that this evaporation part is used for vaporizing and is directed in this evaporation part, and this reacting part is connected in this burning portion and this evaporation part, to receive this recombining reaction raw material that this evaporation part is provided, and the heat that is produced by this burning exothermic reaction, carry out recombining reaction in this reacting part, to produce hydrogen; And
One cell of fuel cell is connected with this reacting part of this recombining reaction unit, generates electricity with this hydrogen that receives this reacting part and provided.
2, fuel cell system as claimed in claim 1, wherein, this unit that ignites comprises that a flame prevents assembly, is used for intercepting this flame and enters this burning portion.
3, fuel cell system as claimed in claim 1, wherein, the flashing point of this fuel is below 25 ℃.
4, fuel cell system as claimed in claim 3, wherein, this fuel is selected from the group that is made up of hydrogen, alkyl compound, vinyl compound, acetylene compound, ether compound, ketone compounds and said mixture thereof.
5, fuel cell system as claimed in claim 4, wherein, this fuel is propane, butane or its mixture.
6, fuel cell system as claimed in claim 1 wherein, includes a combustion reaction catalyst in this burning portion.
7, fuel cell system as claimed in claim 1, wherein, this recombining reaction raw material comprises methyl alcohol and water.
8, fuel cell system as claimed in claim 1 wherein, includes a recombining reaction catalyst in this reacting part.
9, fuel cell system as claimed in claim 1, wherein, this cell of fuel cell comprises a negative electrode, a mea and an anode of repeatedly putting in regular turn.
10, fuel cell system as claimed in claim 1, wherein, this cell of fuel cell is a low form cell of fuel cell, its working temperature is 40 ℃ to 80 ℃.
11, fuel cell system as claimed in claim 1, wherein, this cell of fuel cell is a high-temperature fuel cell unit, its working temperature is 120 ℃ to 180 ℃.
12, fuel cell system as claimed in claim 11 wherein, comprises a heat exchange unit, is used for the tail gas used heat after this burning exothermic reaction provided giving this cell of fuel cell.
13, a kind of How It Works of fuel cell system comprises:
By an igniting assembly, light a fuel, satisfy and produce flame, and make the exothermic reaction of in a burning portion, burning of this fuel, and provide the recombining reaction raw material in an evaporation part, to vaporize;
The heat that this burning exothermic reaction is produced conducts in the reacting part, and this recombining reaction raw material after will vaporizing feeds in this reacting part, to carry out recombining reaction, produces hydrogen; And
This hydrogen is imported in the cell of fuel cell, to generate electricity.
14, How It Works as claimed in claim 13 wherein, comprising:
After lighting this fuel, prevent assembly by a flame, intercept this flame and enter in this burning portion.
15, How It Works as claimed in claim 13, wherein, the flashing point of this fuel is below 25 ℃.
16, How It Works as claimed in claim 15, wherein, this fuel is selected from the group that is made up of hydrogen, alkyl compound, vinyl compound, acetylene compound, ether compound, ketone compounds and said mixture thereof.
17, How It Works as claimed in claim 16, wherein, this fuel is propane, butane or its mixture.
18, How It Works as claimed in claim 13, wherein, this burning exothermic reaction is to carry out under the existence of a combustion reaction catalyst.
19, How It Works as claimed in claim 13, wherein, this recombining reaction raw material comprises methyl alcohol and water.
20, How It Works as claimed in claim 13, wherein, this recombining reaction is to carry out under 200 ℃ to 300 ℃ temperature.
21, How It Works as claimed in claim 13, wherein, this recombining reaction is to carry out under the existence of a recombining reaction catalyst.
22, How It Works as claimed in claim 13, wherein, this cell of fuel cell comprises a negative electrode, a mea and an anode of repeatedly putting in regular turn.
23, How It Works as claimed in claim 13, wherein, this cell of fuel cell is a low form cell of fuel cell, its working temperature is 40 ℃ to 80 ℃.
24, How It Works as claimed in claim 15, wherein, this cell of fuel cell is a high-temperature fuel cell unit, its working temperature is 120 ℃ to 180 ℃.
25, How It Works as claimed in claim 24 wherein, comprising:
By a heat exchange unit, the tail gas used heat after this burning exothermic reaction provided give this cell of fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149001A CN101677126A (en) | 2008-09-18 | 2008-09-18 | Fuel cell system and operating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149001A CN101677126A (en) | 2008-09-18 | 2008-09-18 | Fuel cell system and operating method thereof |
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| CN101677126A true CN101677126A (en) | 2010-03-24 |
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| CN200810149001A Pending CN101677126A (en) | 2008-09-18 | 2008-09-18 | Fuel cell system and operating method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630975A (en) * | 2018-06-29 | 2018-10-09 | 张家港氢云新能源研究院有限公司 | It can realize the proton exchange film fuel cell electric piling that ultra-low temperature cold starts |
| CN109873179A (en) * | 2017-12-04 | 2019-06-11 | 中国科学院大连化学物理研究所 | A kind of fuel cell system and started quickly at low temperature method |
| CN110676482A (en) * | 2019-09-09 | 2020-01-10 | 全球能源互联网研究院有限公司 | Fuel cell cogeneration system |
-
2008
- 2008-09-18 CN CN200810149001A patent/CN101677126A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873179A (en) * | 2017-12-04 | 2019-06-11 | 中国科学院大连化学物理研究所 | A kind of fuel cell system and started quickly at low temperature method |
| CN109873179B (en) * | 2017-12-04 | 2022-03-08 | 中国科学院大连化学物理研究所 | Fuel cell system and low-temperature quick start method |
| CN108630975A (en) * | 2018-06-29 | 2018-10-09 | 张家港氢云新能源研究院有限公司 | It can realize the proton exchange film fuel cell electric piling that ultra-low temperature cold starts |
| CN108630975B (en) * | 2018-06-29 | 2023-12-15 | 张家港氢云新能源研究院有限公司 | Proton exchange membrane fuel cell stack capable of realizing ultralow temperature cold start below-40 DEG C |
| CN110676482A (en) * | 2019-09-09 | 2020-01-10 | 全球能源互联网研究院有限公司 | Fuel cell cogeneration system |
| CN110676482B (en) * | 2019-09-09 | 2022-02-08 | 全球能源互联网研究院有限公司 | Fuel cell cogeneration system |
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Open date: 20100324 |