CN100377409C - Fuel cell system, reformer used for the same, and method of manufacturing the same - Google Patents
Fuel cell system, reformer used for the same, and method of manufacturing the same Download PDFInfo
- Publication number
- CN100377409C CN100377409C CNB2005100821112A CN200510082111A CN100377409C CN 100377409 C CN100377409 C CN 100377409C CN B2005100821112 A CNB2005100821112 A CN B2005100821112A CN 200510082111 A CN200510082111 A CN 200510082111A CN 100377409 C CN100377409 C CN 100377409C
- Authority
- CN
- China
- Prior art keywords
- reformer
- cover plate
- reactive moieties
- reaction
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
-
- 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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
A fuel cell system includes: a reformer for generating hydrogen from hydrogen-containing fuel; at least one electricity generator for generating electric energy through an electrochemical reaction of hydrogen and oxygen; a fuel supply unit for supplying the fuel to the reformer; and an oxygen supply unit for supplying the oxygen to the reformer and the at least one electricity generator. The reformer includes: a plurality of reaction sections, wherein at least one of the reaction sections has a channel; at least one cover plate; and a bonding joint between two of the reaction sections and between the at least one of the reaction sections and the at least one cover plate to couple the at least one of the reaction sections and the at least one cover plate to each other.
Description
Technical field
The present invention relates to a kind of fuel cell system, and relate more specifically to be used for the coupled structure (coupled structure) of the template reformer (plate type reformer) of fuel cell system.
Background technology
As everyone knows, fuel cell be directly with oxygen and in hydrocarbon material such as methyl alcohol, ethanol or natural gas the chemical reaction of contained hydrogen can be converted into the electricity generation system of electric energy.
Recently developed a kind of polymer dielectric film fuel cell (PEMFC hereinafter referred to as), it has remarkable output characteristic, low operating temperature and starts fast and response characteristic.PEMFC has widely and to use, and comprises the distribution power of portable power source, dwelling house and building of vehicle and the Miniature Power Unit of electronic equipment.
Use the fuel cell system of PEMFC scheme to comprise heap body, reformer, tanks and petrolift.The heap body constitutes the main body of fuel cell, and the fuel that petrolift will be stored in the tanks offers reformer.Then, the reformer fuel reforming produces hydrogen and hydrogen is offered the heap body, and this heap body produces electric energy by the electrochemical reaction between hydrogen and the oxygen.
Reformer is to utilize heat energy to produce the device of hydrogen by catalyzed chemical reaction from hydrogen-containing fuel.Usually, reformer comprises the thermal source that produces heat energy, utilizes heat energy to produce the reforming reactor of hydrogen and reduce the carbon monoxide removal device of the concentration of carbon monoxide contained the hydrogen from fuel.
In traditional reformer of fuel cell system, each forms thermal source, reforming reactor and carbon monoxide removal device pipe (vessel) shape and is connected and separates by pipeline (pipe).Therefore, be difficult to closely realize fuel cell system and promptly will be sent to reforming reactor, worsen the reaction efficiency and the heat efficiency of whole fuel cell system thus from the heat energy that thermal source produces.
Summary of the invention
Embodiments of the invention provide a kind of fuel cell system with coupled structure to realize compact reformer.
One embodiment of the invention provide a kind of reformer of fuel cell system, and this reformer comprises: a plurality of reactive moieties, and wherein at least one reactive moieties has raceway groove (channel); At least one cover plate; And bonding pad (bonding joint), between two reactive moieties and between at least one reactive moieties and at least one cover plate, come at least one reactive moieties coupled to each other and at least one cover plate.
Each reactive moieties can have reaction plate, and raceway groove can be formed in each reaction plate, and catalyst layer is formed in the raceway groove of each reaction plate.
Here, bonding pad can be formed by the metal of brazing.Bonding pad can be formed at contact portion between the reaction plate and the contact site between at least one reaction plate and at least one cover plate assign to be bonded to each other at least one reaction plate and at least one cover plate.
The metal that constitutes bonding pad can have than the lower fusing point of material that constitutes reaction plate and at least one cover plate.The metal that constitutes bonding pad can comprise from the material of the group selection that comprises copper, stainless steel, aluminium, nickel, iron and its alloy.
Bonding pad can be made by encapsulant.
Bonding pad can be formed at contact portion between the reaction plate and the contact site between at least one reaction plate and at least one cover plate assign to be bonded to each other at least one reaction plate and at least one cover plate.Perhaps, bonding pad can be formed at the edge of reaction plate and the edge of cover plate.In the later case, have pad corresponding to the opening of raceway groove can be arranged between the reaction plate and/or at least one plate and at least one cover plate between.Pad can be by teflon (Teflon
) or metal make.
Reactive moieties can comprise: thermal source is suitable for producing heat energy by the oxidation catalysis reaction of fuel and air; And reforming reactor, it uses the fuel supply that is independent of thermal source, and it produces hydrogen from thermal source absorption heat energy.Reforming reactor and cover plate can be stacked on the thermal source respectively, or cover plate can comprise a plurality of cover plates and wherein each cover plate can be stacked in respectively on each reactive moieties.Reactive moieties can also comprise the carbon monoxide removal device, is used for reducing the contained carbonomonoxide concentration of hydrogen.
One embodiment of the invention comprise the manufacture method of the reformer of fuel cell system.This method comprises: prepare a plurality of reaction plates and at least one cover plate, wherein channel shape is formed at least one reactive moieties and at least one cover plate; Load at least one metal film, described metal film has the opening corresponding to the raceway groove between at least one reactive moieties and at least one cover plate; At least one reactive moieties of heating and at least one cover plate under the situation when at least one reactive moieties and at least one cover plate contact with each other; Come at least one reactive moieties of brazing and at least one cover plate with at least one metal film of fusion.
At least one metal film can be made by the material from the group selection that comprises copper, stainless steel, aluminium, nickel, iron and its alloy.
Each reactive moieties can have reaction plate, described reaction plate can be made by the material from the group selection that comprises stainless steel, copper, aluminium, nickel, iron and its combination, and at least one cover plate can be made by the material from the group selection that comprises stainless steel, aluminium, nickel, iron and its combination.
Can come at least one metal film of fusion at least one reactive moieties of heating and at least one cover plate under about 500 ℃ to 900 ℃ temperature.
One embodiment of the invention provide a kind of fuel cell system.Described fuel cell system comprises: reformer is used for producing hydrogen from hydrogen-containing fuel; At least one generating body is used for producing electric energy by the electrochemical reaction of hydrogen and oxygen; Fuel supply unit is used for fuel supply to reformer; With the oxygen supply unit, be used for oxygen supply to reformer and at least one generating body.Here, reformer comprises: a plurality of reactive moieties, and wherein at least one reactive moieties has raceway groove; At least one cover plate contacts at least one reactive moieties; And bonding pad, between two reactive moieties and between at least one reactive moieties and at least one cover plate, come at least one reactive moieties coupled to each other and at least one cover plate.
Bonding pad can be formed or can be made by encapsulant by brazing metal.
Description of drawings
Above and other feature of the present invention will be by becoming more obvious with reference to the accompanying drawings and to the one exemplary embodiment detailed description.
Fig. 1 is the schematic diagram that illustrates according to the total of the fuel cell system of embodiments of the invention;
Fig. 2 is the decomposition diagram that heap body structure shown in Figure 1 is shown;
Fig. 3 is the decomposition diagram that illustrates according to the reformer of the first embodiment of the present invention;
Fig. 4 is the cross-sectional view that reformer coupled structure shown in Figure 3 is shown;
Fig. 5 is the flow chart that illustrates according to the manufacture method of the reformer of the first embodiment of the present invention;
Fig. 6 illustrates the cross-sectional view that improves the reformer structure of example according to first of the first embodiment of the present invention;
Fig. 7 illustrates the decomposition diagram that improves the reformer structure of example according to second of the first embodiment of the present invention;
Fig. 8 is the cross-sectional view that the coupled structure of reformer shown in Figure 7 is shown;
Fig. 9 is the decomposition diagram that illustrates according to the reformer structure of the second embodiment of the present invention;
Figure 10 is the cross-sectional view that reformer coupled structure shown in Figure 9 is shown;
Figure 11 be illustrate according to the third embodiment of the present invention the cross-sectional view of reformer coupled structure.
Embodiment
Hereinafter, will describe one exemplary embodiment of the present invention with reference to the accompanying drawings in detail, and make those skilled in the art the present invention easily can be tried out.But, the invention is not restricted to one exemplary embodiment, and can realize with various forms.
Fig. 1 is the schematic diagram that illustrates according to the total of the fuel cell system of embodiments of the invention, and Fig. 2 is the decomposition diagram that heap body structure shown in Figure 1 is shown.
With reference to Fig. 1 and 2, use polymer dielectric film fuel cell (PEMFC) schemes according to fuel cell system of the present invention 100, its reformation hydrogen-containing fuel produce hydrogen and allow hydrogen and oxygen each other electrochemical reaction produce electric energy.
Be used for to comprise liquid or gas hydrogen-containing fuel, such as methyl alcohol, ethanol or natural gas at the fuel that fuel cell system 100 produces electricity.But, in the following description as an example with liquid fuel.
With reference to figure 1, fuel cell system 100 comprises: heap body 10 is used for producing electric energy by the electrochemical reaction between the contained oxygen of hydrogen and air; Reformer 30 is used for producing hydrogen from the fuel that comprises hydrogen; Fuel supply unit 50 is used for fuel is offered reformer 30; With oxygen supply unit 70, be used for oxygen is offered heap body 10 and reformer 30.
Each generating body 11 is the unit that are used to produce the fuel cell of electric energy, and its median septum 16 is arranged on two surfaces of membrane electrode assembly (MEA) 12.
Anode electrode resolves into electronics and hydrogen ion (proton) by the oxidation reaction of hydrogen with hydrogen.Cathode electrode produces heat and the moisture with predetermined temperature by the reduction reaction of hydrogen ion and oxygen.Dielectric film is carried out ion exchanging function, and the hydrogen ion that is used for producing from anode electrode migrates to cathode electrode.
The outermost of heap body 10 can provide additional force fit plate 13 and 13 ', is used to make generating body 11 closely contact each other.Can make up heap body 10 according to the present invention and make the outermost dividing plate 16 that is positioned at a plurality of generating bodies 11 carry out the function of force fit plate 13 and 13 ', and need not provide force fit plate 13 and 13 '.Perhaps, can make up heap body 10 and make force fit plate 13 and 13 ' have dividing plate 16 functions peculiar except the functions that a plurality of generating bodies 11 closely contacts, its will after description in more detail.
A force fit plate 13 is equipped with the first hand-hole 13a and the second hand-hole 13b, and the first hand-hole 13a is used for hydrogen is supplied to generating body 11, and the second hand-hole 13b is used to supply air to generating body 11.Another force fit plate 13 ' is equipped with the first bleed hole 13c and the second bleed hole 13d, the first bleed hole 13c is used for emitting generating body 11 unreacted hydrogen, and the moisture that the second bleed hole 13d is used for emitting generating body 11 unreacted air and produces by the coupled reaction between hydrogen and the oxygen (coupling reaction).
In the present embodiment, reformer 30 has a kind of structure, is used for utilizing heat energy to produce hydrogen and reduce the contained carbonomonoxide concentration of hydrogen from hydrogen-containing fuel by catalyzed chemical reaction.The structure of reformer 30 will be described in the back in further detail with reference to figure 3 and 4.
Be used for the fuel supply unit 50 of fuel supply to reformer 30 comprised: first jar 51, be used for fuel-in-storage; Second jar 53, be used for storage of water; With petrolift 55, be connected to first and second jar 51 and 53.Oxygen supply unit 70 comprises air pump 71, is used for predetermined pumping power from the atmospheric air suction air and supply air to reformer 30.
With reference to Fig. 3 and 4 structure according to the reformer 30 of the first embodiment of the present invention is described in more detail.
Fig. 3 is the decomposition diagram that illustrates according to the reformer of the first embodiment of the present invention, and Fig. 4 is the cross-sectional view that reformer coupled structure shown in Figure 3 is shown.
With reference to figure 3 and 4, the stacked structure that has a plurality of reaction plates 31,32,33 and 34 according to the reformer 30 of present embodiment, its oxidation catalysis reaction by fuel and air produces heat energy, utilize heat energy to produce hydrogen from mixture (hereinafter being called fuel mixture), and reduce the concentration of carbon monoxide contained in the hydrogen by various catalytic reactions from first and second jar 51 and 53 fuel and water.
Particularly, reformer 30 comprises: thermal source 31 is used to produce heat energy; Reforming reactor 32 is used to absorb heat energy, vaporized fuel and produce hydrogen by steam reformation (SR) catalytic reaction from the fuel mixture of vaporization; The first carbon monoxide removal device 33, be used for water-gas shift reaction (WGS) by hydrogen thus reduce the contained carbonomonoxide concentration of hydrogen first; The second carbon monoxide removal device 34, the preferential CO oxidation (PROX) by hydrogen and air thus the catalytic reaction secondary reduces contained carbonomonoxide concentration in the hydrogen.
According to present embodiment, reformer 30 has a kind of like this structure, and wherein the reformer 32 and the first carbon monoxide removal device 33 stack gradually on thermal source 31 or the top, and the second carbon monoxide removal device 34 is stacked in thermal source 31 times or the below.Cover plate 36 can be coupled on the first carbon monoxide removal device 33 and be positioned at the outermost of reformer 30.Each of a plurality of bonding pads 60 be arranged at reactive moieties 31,32,33 and 34 and two of dividing plate 36 between.Bonding pad 60 will be described in more detail following.
Each reactive moieties 31,32,33 and 34 can comprise reaction plate, and the shape that it has rectangular slab have predetermined width and predetermined length, and it is from being made by the material of aluminium, stainless steel, copper, nickel, iron and its combination selection.
Now reactive moieties 31,32,33 and 34 will be described in further detail.
The first carbon monoxide removal device 33 produces the concentration that additional hydrogen reduces carbon monoxide contained the hydrogen by the water-gas shift catalytic reaction of the hydrogen that produces from reforming reactor 32.
First carbon monoxide reduces device 33 and comprises: the 3rd reaction plate 33a wherein is formed for the triple channel 33c that hydrogen is flowed; With water-gas shift catalyst layer 33e, be used to promote the water-gas shift reaction of hydrogen, be formed on the inner surface of triple channel 33c.
The second carbon monoxide removal device 34 reacts contained carbonomonoxide concentration the minimizing hydrogen by the preferential CO oxidation catalysis of hydrogen of discharging from the first carbon monoxide removal device 33 and the air of supplying with from oxygen supply unit 70.
Second carbon monoxide reduces device 34 and comprises: the 4th reaction plate 34a wherein is formed for making the 4th raceway groove 34c of hydrogen and air flows; With preferential CO layer of oxidation catalyst 34e, be used to promote the preferential CO oxidation catalysis reaction of hydrogen, be formed on the inner surface of the 4th raceway groove 34c.
Cover plate is installed on the first carbon monoxide removal device 33.
Each of a plurality of bonding pads 60 is arranged between reactive moieties 31,32,33,34 and cover plate 36 two.Bonding pad 60 is used to be bonded to each other and fixation reaction part 31,32,33,34 and cover plate 36.Bonding pad 60 can be formed at contact portion, the 3rd reaction plate 33a between contact portion, the second reaction plate 32a and the 3rd reaction plate 33a between the first reaction plate 31a and the second reaction plate 32a and cover in the contact portion between contact portion, the 4th reaction plate 34a and the first reaction plate 31a between 36.The contact portion of reaction plate 31a, 32a, 33a and 34a and cover plate 36 comprises reaction plate 31a, 32a, 33a and 34a and the cover plate 36 of part, wherein do not form raceway groove 31c, 32c, 33c and 34c, and it contacts closely with 33a or cover plate 36 with adjacent reaction plate 31a, 32a.
In the present embodiment, bonding pad 60 can form by motlten metal.That is, each bonding pad can form by the brazing metal film, and this metal film has the opening corresponding to raceway groove 31c, 32c, 33c and 34c.
The metal film that forms bonding pad 60 should have lower fusing point than the material that forms reaction plate 31a, 32a, 33a and 34a and cover plate 36.That is, when forming bonding pad 60 by the heating of metal film, reaction plate 31a, 32a, 33a and 34a and cover plate 36 should be closely fixing each other by bonding pad, and do not make reaction plate 31a, 32a, 33a and 34a and cover plate 36 distortion.
In the present embodiment, reaction plate 31a, 32a, 33a and 34a and cover plate 36 can be fixed to one another securely by the bonding pad of being made by metal film 60.
In reformer 30 according to the present invention, since by between reaction plate 31a, 32a, 33a and 34a and cover plate 36 two, be provided with one of metal film and then this metal film of brazing form bonding pad 60, the manufacturing process of reformer 30 is simplified, and has improved productive rate thus.In addition, because bonding pad 60, can improve the air-tightness between the contact portion of reaction plate 31a, 32a, 33a and 34a and cover plate 36.
And according in the fuel cell system of the present invention, owing to form reformer by piling up the reaction plate with the raceway groove separately that is used to make fuel or gas flow, the size of reformer can be reduced, and allows fuel cell system to become compact thus.
Operation according to the fuel cell system of embodiments of the invention below will be described in further detail.
At first, petrolift 55 fuel that will be stored in first jar 51 is supplied to thermal source 31 by first supply pipeline 81.Simultaneously, air pump 71 is supplied to thermal source part 31 with air by second supply pipeline 82.Then, fuel and air cause the oxidation catalysis reaction under the effect of the layer of oxidation catalyst 31e of thermal source 31.Therefore, thermal source 31 produces the reaction heat of predetermined temperature by the oxidation catalysis reaction of fuel and air.As a result, the heat energy that produces from thermal source 31 is sent to reforming reactor 32 and the first and second carbon monoxide removal devices 33 and 34 and the whole reformer 30 of preheating.
Afterwards, when finishing the preheating of reformer 30, the fuel that petrolift 55 will be stored in first jar 51 is supplied to reformer 32 with the water that is stored in second jar 53 by the 3rd supply pipeline 83.Then, fuel and water are vaporized, and produce hydrogen by steam reforming reaction from the fuel of vaporization under the effect of the reforming catalyst layer 32e of reforming reactor 32.Because reforming reactor 32 can not thoroughly be carried out the steam reformation catalytic reaction, so reforming reactor 32 produces the hydrogen that contains as the carbon monoxide of byproduct.
Afterwards, the hydrogen that contains carbon monoxide is supplied to the first carbon monoxide removal device 33.Then, the first carbon monoxide removal device 33 produces additional hydrogen by the water-gas shift catalytic reaction under the effect of water-gas shift catalyst layer 33e, reduce carbonomonoxide concentration contained in the hydrogen first.
Subsequently, the hydrogen by the first carbon monoxide removal device 33 is supplied to the second carbon monoxide removal device 34.Simultaneously, air pump 71 is supplied to the second carbon monoxide removal device 34 with air by the 4th supply pipeline 84.Then, the second carbon monoxide removal device 34 reduces contained carbonomonoxide concentration in the hydrogen by preferential CO oxidation catalysis reaction secondary under the effect of preferential CO oxidation catalysis layer 34e, and release hydrogen.
Subsequently, hydrogen is supplied to the first hand-hole 13a of heap body 10 by the 5th supply pipeline 85.Simultaneously, air pump 71 is supplied to air the second hand-hole 13b of heap body 10 by the 6th supply pipeline 86.
Then, hydrogen is supplied to the anode electrode of MEA 12 by the hydrogen passage of dividing plate 16.Air is supplied to the cathode electrode of MEA 12 by the air duct of dividing plate 16.
Anode electrode resolves into electronics and proton (hydrogen ion) by oxidation reaction with hydrogen.Proton migrates to cathode electrode by dielectric film, and electronics is by dividing plate 16 rather than migrate to the cathode electrode of adjacent MEA 12 by dielectric film.The mobile generation electric current of electronics, and heat and water also produce as byproduct by piling body 10.
Now, will manufacture method according to the manufacturing reformer 30 of first embodiment of the invention be described in further detail with reference to figure 5.
At first, prepare cover plate 36 and have the reactive moieties 31,32,33 and 34 of raceway groove 31c, 32c, 33c and 34c, in raceway groove 31c, 32c, 33c and 34c, form catalyst layer 31e, 32e, 33e and 34e (S10).
Subsequently, on the thermal source 31 or above stack gradually reforming reaction part 32, the first carbon monoxide removal device 33 and cover plate 36, and thermal source 31 times or below pile up the second carbon monoxide removal device 34.
In the method, have corresponding to each of the metal film of the opening of raceway groove 31c, 32c, 33c and 34c be arranged at reactive moieties 31,32,33 and 34 and two of cover plate 36 between (S20).This moment, metal film being set makes separately raceway groove 31c, 32c, 33c and 34c corresponding to the opening of metal film separately.
Thereafter, reactive moieties 31,32,33 and 34 and cover plate 36 by the state of closely pressing under, they are heated to predetermined temperature, thus motlten metal film (S30).In one embodiment, when reaction plate 31a, 32a, 33a and the 34a of reactive moieties 31,32,33 and 34 and cover plate 36 were made by stainless steel, they were heated to about 900 ℃ temperature and come the motlten metal film.In another embodiment, when reaction plate 31a, 32a, 33a and 34a and cover plate 36 were made of aluminum, they are heated to from about 500 ℃ came the motlten metal film to 900 ℃.
The improvement example of the first embodiment of the present invention below will be described.In improving example, the described essentially identical element with first embodiment will be described no longer.
Fig. 6 illustrates the cross-sectional view that improves the reformer structure of example according to first of the first embodiment of the present invention.
With reference to figure 6, be included in reforming reactor 42 and the cover plate 46 that stacks gradually on the thermal source 41 according to the reformer 30A of this improvement example.Particularly, reformer 30A has a kind of like this structure, make the second reaction plate 42a be stacked on the first reaction plate 41a, and cover plate 46 is stacked on the second reaction plate 42a.This moment, the first reaction plate 41a, the second reaction plate 42a and cover plate 46 are equipped with the bonding pad that is formed by brazing metal.
That is, in this improvement example, the quantity by minimizing element and comprise reforming reaction required thermal source 41 and reformer 42 can further improve the structural advantage of reformer 30A.
Fig. 7 illustrates the decomposition diagram that improves the reformer structure of example according to second of the reformer of embodiments of the invention.Fig. 8 is the cross-sectional view of the coupling of reformer shown in Figure 7.
In this improvement example, reformer comprises thermal source 91, reforming reactor 92, the first carbon monoxide removal device 93 and the second carbon monoxide removal device 94.Because reactive moieties 91,92,93 has identical structure with 94, except forming different catalyst layer 91e, 92e, 93e and 94e therein, reactive moieties 91,92,93 and 94 is shown as an element in Fig. 7.
According to first and second improve examples reformer manufacture method with make basic identical and will no longer describe according to the method for the reformer of first embodiment.
Can not comprise the carbon monoxide removal device and can also comprise additional reactive moieties according to reformer of the present invention.Reformer can comprise the reactive moieties with the different structure of above-mentioned tabular reactive moieties, and it belongs to scope of the present invention.
Reformer according to the second embodiment of the present invention and the 3rd embodiment below will be described.In an embodiment, the described essentially identical element with first embodiment will no longer be described.And the improvement example of first embodiment can be suitable for second embodiment.
Fig. 9 is the decomposition diagram that illustrates according to the reformer structure of the second embodiment of the present invention.Figure 10 is the cross-sectional view that reformer coupled structure shown in Figure 9 is shown.
With reference to figure 9 and Figure 10, comprise thermal source 131, reforming reactor 132, the first carbon monoxide removal device 133 and the second carbon monoxide removal device 134 according to the reformer 130 of present embodiment, it piles up each other.Here, the reforming reactor 132 and the first carbon monoxide removal device 133 can stack gradually on thermal source 131, and the second carbon monoxide removal device 134 can be stacked in thermal source 131 times.
More specifically, can be by stacking gradually the second reaction plate 132a and the 3rd reaction plate 133a on the first reaction plate 131a and under the first reaction plate 131a, piling up the reformer 130 that the 4th reaction plate 134a comes the construction basis present embodiment then.Cover plate 136 can be connected on outermost the 3rd reaction plate 133a that is arranged at reformer 130.
The bonding pad 160 that corresponding reaction plate 131a, 132a, 133a and 134a and cover plate 136 are bonded to each other is made by encapsulant and is used in conjunction with its edge.Here, encapsulant can be made up of glass dust.
That is, in the present invention, by between reaction plate 131a, 132a, 133a and 134a and cover plate 136 pad being set, apply glass dust on its edge, and cure them then, they can be bonded to each other.
Owing to use pad 145 with bonding pad 160 in the present embodiment, can keep the air-tightness of the passage that forms by raceway groove 131c, 132c, 133c and 134c effectively and firmly fix reaction plate 131a, 132a, 133a and 134a and the cover plate 136 that contacts with each other.
Figure 11 is the cross-sectional view that illustrates according to the reformer structure of the third embodiment of the present invention.
With reference to Figure 11, comprise thermal source 181, reforming reactor 182, the first carbon monoxide removal device 183 and the second carbon monoxide removal device 184 according to the reformer 180 of present embodiment, it piles up each other.
Can be by stacking gradually the second reaction plate 182a and the 3rd reaction plate 183a on the first reaction plate 181a and under the first reaction plate 181a, piling up the reformer 180 that the 4th reaction plate 184a comes the construction basis present embodiment then.Cover plate 186 can be connected on outermost the 3rd reaction plate 183a that is arranged at reformer 180.
The bonding pad 190 of coupled reaction plate 181a, 182a, 183a and 184a and cover plate 186 is made by the encapsulant that is formed at contact site office therebetween.Encapsulant can be made of glass dust.That is, by not forming the part coated glass powder of raceway groove 181c, 182c, 183c and 184c in reaction plate 181a, 182a, 183a and 184a, and cure them then, reaction plate 181a, 182a, 183a and 184a and cover plate 186 can be bonded to each other.
In the present embodiment, by on the whole contact portion of reaction plate 181a, 182a, 183a and 184a and cover plate 186, forming bonding pad 190, can be in the same place with 184a in conjunction with these plates 181a, 182a, 183a more firmly.
Though described the present invention in conjunction with some one exemplary embodiment, one skilled in the art should appreciate that to the invention is not restricted to the disclosed embodiments,, on the contrary, be intended to cover the interior included various improvement of spirit and scope of claim and its equivalent.
Claims (23)
1. the reformer of a fuel cell system comprises:
A plurality of reactive moieties, wherein at least one reactive moieties has raceway groove;
At least one cover plate; With
Bonding pad between two described reactive moieties and between described at least one reactive moieties and described at least one cover plate, comes described at least one reactive moieties coupled to each other and described at least one cover plate.
2. reformer as claimed in claim 1, wherein, described at least one reactive moieties has reaction plate, and described channel shape is formed in the described reaction plate, and catalyst layer is formed in the raceway groove of described reaction plate.
3. reformer as claimed in claim 2, wherein, described bonding pad is made of metal.
4. reformer as claimed in claim 3, wherein, described bonding pad is formed in the contact portion and the contact portion between described at least one reaction plate and described at least one cover plate between the described reaction plate, and described at least one reaction plate and described at least one cover plate are bonded to each other.
5. reformer as claimed in claim 3, wherein, described bonding pad uses method of brazing to form.
6. reformer as claimed in claim 3, wherein, the described metal that constitutes described bonding pad has than the lower fusing point of material that constitutes described reaction plate and at least one cover plate.
7. reformer as claimed in claim 3, wherein, the described metal that constitutes described bonding pad comprises from the material of the group selection that comprises copper, stainless steel, aluminium, nickel, iron and its alloy.
8. reformer as claimed in claim 2, wherein, described bonding pad is made by encapsulant.
9. reformer as claimed in claim 8, wherein, described bonding pad is formed in the contact portion and the contact portion between described at least one reaction plate and described at least one cover plate between the described reaction plate.
10. reformer as claimed in claim 8, wherein, described bonding pad is formed on the edge of the edge of described reaction plate and described at least one cover plate.
11. reformer as claimed in claim 8, wherein, pad be arranged between the described reaction plate and described at least one reaction plate and described at least one cover plate between, described pad has the opening corresponding to described raceway groove.
12. reformer as claimed in claim 11, wherein, described pad is made by teflon or metal.
13. reformer as claimed in claim 1, wherein, described reactive moieties comprises:
Thermal source is used for producing heat energy by the oxidation catalysis reaction of fuel and air; With
Reforming reactor wherein, is independent of described thermal source to described reforming reactor fueling, and described reforming reactor absorbs described heat energy from described thermal source and produces hydrogen.
14. reformer as claimed in claim 13, wherein, described reforming reactor and described at least one cover plate are stacked in respectively on the described thermal source.
15. reformer as claimed in claim 13, wherein, described at least one cover plate comprises a plurality of cover plates, and wherein, and each described cover plate is stacked on corresponding of reactive moieties.
16. reformer as claimed in claim 13, wherein, described reactive moieties also comprises the carbon monoxide removal device, is used for reducing the contained carbonomonoxide concentration of described hydrogen.
17. the manufacture method of the reformer of a fuel cell system, described method comprises:
Prepare a plurality of reactive moieties and at least one cover plate, wherein channel shape is formed in described at least one reactive moieties;
Load at least one metal film, described metal film has the opening corresponding to the described raceway groove between described at least one reactive moieties and described at least one cover plate;
Described at least one reactive moieties of heating and at least one cover plate under the state that described at least one reactive moieties and at least one cover plate contact with each other; With
Described at least one metal film of fusion comes described at least one reactive moieties of brazing and described at least one cover plate.
18. method as claimed in claim 17, wherein, described at least one metal film comprises from the material of the group selection that comprises copper, stainless steel, aluminium, nickel, iron and its alloy.
19. method as claimed in claim 17, wherein, each described reactive moieties has reaction plate, and described reaction plate is made by the material from the group selection that comprises stainless steel, copper, aluminium, nickel, iron and its combination, and
Wherein, described at least one cover plate is made by the material from the group selection that comprises stainless steel, aluminium, nickel, iron and its combination.
20. method as claimed in claim 17 wherein, is heated to described at least one reactive moieties and described at least one cover plate from 500 ℃ to 900 ℃ temperature and comes described at least one metal film of fusion.
21. a fuel cell system comprises:
Reformer is used for producing hydrogen from hydrogen-containing fuel;
At least one generating body is used for producing electric energy by the electrochemical reaction of hydrogen and oxygen;
Fuel supply unit is used for described fuel supply to reformer; With
The oxygen supply unit is used for oxygen supply to described reformer and at least one generating body, and
Wherein said reformer comprises:
A plurality of reactive moieties, wherein at least one reactive moieties has raceway groove;
At least one cover plate contacts described at least one reactive moieties; With
Bonding pad between two described reactive moieties and between described at least one reactive moieties and described at least one cover plate, comes described at least one reactive moieties coupled to each other and described at least one cover plate.
22. fuel cell system as claimed in claim 21, wherein, described bonding pad is formed by brazing metal.
23. fuel cell system as claimed in claim 21, wherein, described bonding pad is made by encapsulant.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR49292/04 | 2004-06-29 | ||
| KR1020040049292A KR100551060B1 (en) | 2004-06-29 | 2004-06-29 | Fuel cell system, reformer used thereto and manufacturing method of the same |
| KR49293/04 | 2004-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716677A CN1716677A (en) | 2006-01-04 |
| CN100377409C true CN100377409C (en) | 2008-03-26 |
Family
ID=35822245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100821112A Expired - Fee Related CN100377409C (en) | 2004-06-29 | 2005-06-29 | Fuel cell system, reformer used for the same, and method of manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100551060B1 (en) |
| CN (1) | CN100377409C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100578817B1 (en) * | 2004-10-28 | 2006-05-11 | 삼성에스디아이 주식회사 | Fuel cell system and reformer |
| CN103170808B (en) * | 2013-04-15 | 2015-07-08 | 青岛兰石重型机械设备有限公司 | Machining process for supporting ring at upper end of fan-shaped cylinder of reforming reactor |
| EP3780202A4 (en) * | 2018-03-30 | 2021-12-29 | Osaka Gas Co., Ltd. | Fuel cell device, and method for operating fuel cell device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348617A (en) * | 1999-02-16 | 2002-05-08 | 能量研究公司 | Internal reforming fuel cell assembly with simplified fuel feed |
| CN1464582A (en) * | 2002-06-20 | 2003-12-31 | 中国科学技术大学 | Anode support tube type solid oxide fuel battery |
| US6695044B1 (en) * | 1999-03-27 | 2004-02-24 | Chart Heat Exchangers Limited Partnership | Heat exchanger |
| WO2004030130A2 (en) * | 2002-09-27 | 2004-04-08 | Questair Technologies Inc. | Solid oxide fuel cell systems |
-
2004
- 2004-06-29 KR KR1020040049292A patent/KR100551060B1/en not_active IP Right Cessation
-
2005
- 2005-06-29 CN CNB2005100821112A patent/CN100377409C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1348617A (en) * | 1999-02-16 | 2002-05-08 | 能量研究公司 | Internal reforming fuel cell assembly with simplified fuel feed |
| US6695044B1 (en) * | 1999-03-27 | 2004-02-24 | Chart Heat Exchangers Limited Partnership | Heat exchanger |
| CN1464582A (en) * | 2002-06-20 | 2003-12-31 | 中国科学技术大学 | Anode support tube type solid oxide fuel battery |
| WO2004030130A2 (en) * | 2002-09-27 | 2004-04-08 | Questair Technologies Inc. | Solid oxide fuel cell systems |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060000430A (en) | 2006-01-06 |
| KR100551060B1 (en) | 2006-02-09 |
| CN1716677A (en) | 2006-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8043389B2 (en) | Fuel cell heat recovering reformer and system | |
| US20050191532A1 (en) | Reformer for fuel cell system and fuel cell system having the same | |
| US7601186B2 (en) | Reformer and fuel cell system having the same | |
| US20050193628A1 (en) | Fuel cell system and reformer therefor | |
| KR20060108376A (en) | Plate type reformer and fuel cell system having the same | |
| CN100573986C (en) | reformer and fuel cell system with it | |
| US7763220B2 (en) | Reformer, fuel cell system having the same, and method of manufacturing the same | |
| US7754164B2 (en) | Reformer and fuel cell system having the same | |
| CN100546088C (en) | Fuel reforming apparatus and manufacture method thereof | |
| CN100377409C (en) | Fuel cell system, reformer used for the same, and method of manufacturing the same | |
| US20050214614A1 (en) | Fuel cell system | |
| US7674542B2 (en) | Fuel cell system | |
| US7749289B2 (en) | Fuel cell system, reformer used for the same, and method of manufacturing the same | |
| CN100544100C (en) | The reformer that is used for fuel cell | |
| US8283080B2 (en) | Fuel cell system including fuel supply apparatus | |
| US7935315B2 (en) | Reformer for a fuel cell system, reaction substrate therefor, and manufacturing method for a reaction substrate | |
| KR101052340B1 (en) | Fuel cell separator for high temperature pemfc with reform and combustion channel | |
| KR100551061B1 (en) | Fuel cell system and reformer used thereto | |
| US20060292409A1 (en) | Fuel reforming system and fuel cell system including the same | |
| KR20050117279A (en) | Reformer for fuel cell system and fuel cell system comprising thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20160629 |