CN101325267A - Method for integrating inner-humidification fuel batter with proton exchange film - Google Patents
Method for integrating inner-humidification fuel batter with proton exchange film Download PDFInfo
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- CN101325267A CN101325267A CNA2007100420686A CN200710042068A CN101325267A CN 101325267 A CN101325267 A CN 101325267A CN A2007100420686 A CNA2007100420686 A CN A2007100420686A CN 200710042068 A CN200710042068 A CN 200710042068A CN 101325267 A CN101325267 A CN 101325267A
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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 method for integrating an internal humidifying proton exchange membrane fuel cell. The internal humidifying proton exchange membrane fuel cell comprises at least two groups of fuel cell stacks and a central current-collecting plate. The fuel cell stacks comprise a humidifying section and a power-generating section. The fuel cell stacks are arranged in the front/back/left/right positions or upper/bottom positions on two sides or on the same side of the central current-collecting plate. The humidifying section of the fuel cell stack is arranged close to the central current-collecting plate. An air inlet, a hydrogen inlet and a cooling water outlet are formed on the current-collecting plate. The air and the hydrogen enter the humidifying section from the central current-collecting plate, further enter the power-generating section after being humidified, then flow out of an end plate at the tail end of the power-generating section. The cooling water flows through a rear current-collecting end plate at the tail end of the power-generating section, cools the power-generating section by means of heat transfer, further flows into the humidifying section to humidify the air and the hydrogen therein, and finally flows out of the central current-collecting plate. Compared with the prior art, the internal humidifying proton exchange membrane fuel cell has the advantages of high effective working area, compact structure, etc.
Description
Technical field
The present invention relates to fuel cell, relate in particular to a kind of integrated approach with Proton Exchange Membrane Fuel Cells of interior humidifying device.
Background technology
Electrochemical fuel cell is a kind of device that hydrogen fuel and oxidant can be changed into electric energy and product.The internal core parts of this device are membrane electrode (Membrane Electrode Assembly are called for short MEA), and membrane electrode (MEA) is made up of as carbon paper a proton exchange membrane, two porous conductive materials of film two sides folder.The catalyst that contains the initiation electrochemical reaction of even tiny dispersion on two boundary faces of film and carbon paper is as the metal platinum catalyst.The electronics that the membrane electrode both sides can will take place to generate in the electrochemical reaction process with conductive body is drawn by external circuit, constitutes current circuit.
At the anode tap of membrane electrode, fuel can pass porousness diffusion material (carbon paper) by infiltration, and electrochemical reaction takes place on catalyst surface, lose electronics, form cation, cation can pass proton exchange membrane by migration, arrives the other end cathode terminal of membrane electrode.At the cathode terminal of membrane electrode, contain the gas of oxidant (as oxygen), as air, pass porousness diffusion material (carbon paper), and the generation electrochemical reaction obtains electronics on catalyst surface, forms anion by infiltration.The cation of coming in the anion and the anode tap migration of cathode terminal formation reacts, and forms product.
Adopting hydrogen is fuel, and the air that contains oxygen is in the Proton Exchange Membrane Fuel Cells of oxidant (or pure oxygen is an oxidant), and fuel hydrogen has just produced hydrogen cation (or being proton) in the catalytic electrochemical reaction of anode region.Proton exchange membrane helps the hydrogen cation to move to the cathodic region from the anode region.In addition, proton exchange membrane is separated the air-flow and the oxygen containing air-flow of hydrogen fuel, they can not mixed mutually and produces explosion type reaction.
In the cathodic region, oxygen obtains electronics on catalyst surface, forms anion, and moves the hydrogen cation reaction of coming, reaction of formation product water with the anode region.In the Proton Exchange Membrane Fuel Cells that adopts hydrogen, air (oxygen), anode reaction and cathode reaction can be expressed in order to following equation:
Anode reaction: H
2→ 2H
++ 2e
Cathode reaction: 1/2O
2+ 2H
++ 2e → H
2O
In typical Proton Exchange Membrane Fuel Cells, membrane electrode (MEA) generally all is placed in the middle of the pole plate of two conductions, and quarter is milled by die casting, punching press or machinery in the surface that every block of flow guiding electrode plate contacts with membrane electrode, and formation is the guiding gutter of one or more at least.These flow guiding electrode plates can be the pole plates of metal material, also can be the pole plates of graphite material.Water conservancy diversion duct on these flow guiding electrode plates and guiding gutter import fuel and oxidant the anode region and the cathodic region on membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there is a membrane electrode, the membrane electrode both sides are respectively the guide plate of anode fuel and the guide plate of cathode oxidant.These guide plates are both as the current collector motherboard, also as the mechanical support on membrane electrode both sides, guiding gutter on the guide plate acts as a fuel again and enters the passage of anode, cathode surface with oxidant, and as the passage of taking away the water that generates in the fuel cell operation process.
In order to increase the gross power of whole Proton Exchange Membrane Fuel Cells, two or more monocells can be connected into battery pack or be unified into battery pack by the mode that tiles usually by straight folded mode.In straight folded, in-line battery pack, can there be guiding gutter on the two sides of a pole plate, and wherein one side can be used as the anode guide face of a membrane electrode, and another side can be used as the cathode diversion face of another adjacent membranes electrode, and this pole plate is called bipolar plates.A series of monocell connects together by certain way and forms a battery pack.Battery pack tightens together by front end-plate, end plate and pull bar usually and becomes one.
A typical battery stack generally includes: the water conservancy diversion import and the flow-guiding channel of (1) fuel and oxidant gas are distributed to fuel (as hydrogen, methyl alcohol or the hydrogen-rich gas that obtained by methyl alcohol, natural gas, gasoline) and oxidant (mainly being oxygen or air) in the guiding gutter of each anode, cathode plane equably after reforming; (2) import and export and the flow-guiding channel of cooling fluid (as water) are evenly distributed to cooling fluid in each battery pack inner cooling channel, the heat absorption that hydrogen in the fuel cell, the exothermic reaction of oxygen electrochemistry are generated and take battery pack out of after dispel the heat; (3) outlet of fuel and oxidant gas and corresponding flow-guiding channel, fuel gas and oxidant gas are when discharging, and portability goes out the liquid that generates in the fuel cell, the water of steam state.Usually, the import and export of all fuel, oxidant, cooling fluid are all opened on the end plate of fuel battery or on two end plates.
Proton Exchange Membrane Fuel Cells can be used as the dynamical system of delivery vehicles such as all cars, ship, can be used as portable, portable, fixed Blast Furnace Top Gas Recovery Turbine Unit (TRT) again.Core component is a membrane electrode in the Proton Exchange Membrane Fuel Cells, and proton exchange membrane is the core component in the membrane electrode.
Used proton exchange membrane in the membrane electrode of fuel batter with proton exchange film needs the hydrone existence and preserves moisture in the battery operation process at present.Because have only the proton of aquation just can freely pass proton exchange membrane, arrive the electrode cathode end from the electrode anode end and participate in electrochemical reaction, otherwise, when the fuel hydrogen of a large amount of dryings or air when the membrane electrode both sides are flow through, easily the moisture subband in the proton exchange membrane is run, this moment, proton exchange membrane was in than drying regime, and proton can't pass proton exchange membrane, cause the electrode internal resistance sharply to increase, battery performance sharply descends.So, in general need through humidification to fuel cell supplied fuel hydrogen or air, the fuel hydrogen or the relative air humidity that enter fuel cell are improved, in order to avoid make the proton exchange membrane dehydration.
The mode that is applied to the Proton Exchange Membrane Fuel Cells humidification at present mainly contains two classes:
(1) outer humidification: humidification device separates with fuel battery, and at the outside self-existent humidification device of fuel battery.Mainly directly outside this, collide the hydrone that impels the GAS ABSORPTION vaporization with hydrone by fully mixing in the humidifying device by fuel hydrogen gas or air gas.
(2) interior humidification: interior humidifying device is the part that fuel battery is formed.Fuel battery is divided into two parts, and a part is interior humidification section, and another part is the active active section of battery.Interior humidification section is made of humidification baffler and humidification electrode, and the active active section of battery is made of baffler and membrane electrode.The humidification electrode often can be carried out the film that hydrone freely exchanges and formed by a kind of, and for example E.I.Du Pont Company's trade mark is Nafion
Amberplex, this film can allow deionized water flow on one side of film, and allow fuel gas or oxidant gas, flow as the another side of air at film, film can be separated fuel gas or air and liquid water molecules, but hydrone can pass freely through film again and enter in fuel gas or the air and go, and reaches the humidifying purpose.
When considering the fuel cell overall compactedness and practicing every conceivable frugality the volume of fuel cell system, the mode of humidification has bigger advantage than outer humidification in often adopting.The technology of humidification has following two kinds of engineering designs and manufacture method at present, and at US Patent5, report in 382,478.
Method one: the rear end that interior humidification section is placed on fuel battery, shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, be provided with air inlet 1, air gas outlet 2, hydrogen inlet 3, hydrogen gas outlet 4, cooling water inlet 5, coolant outlet 6, fuel cell power generation section 7, fuel cell humidifying section 8, humidification air intlet section 9, humidification hydrogen inlet section 10, cooling water inlet section 11.
Method two: the front end that interior humidification section is placed on fuel battery, shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, the principle of this method for designing is exactly the humidification section of elder generation with fuel hydrogen and oxidant air or pure oxygen elder generation process battery pack, make fuel hydrogen, oxidant air or pure oxygen reach certain relative humidity, and then enter cell section reaction, and the cooling deionized water is introduced into cell section cell section reaction heat is taken out of, carry out water, heat exchange in battery pack humidification section and fuel hydrogen, oxidant air or pure oxygen again, reach the purpose that energy efficiency improves.
Though above-mentioned method for designing can reach the humidification purpose, there is following defective:
1. the baffler of fuel cell power generation section and six pod apertures are generally arranged above the electrode is respectively that fuel hydrogen advances and goes out, and the oxidant air advances and goes out, and cooling water advances and goes out.Like this, no matter the humidification section of above-mentioned design is placed on whole battery group back or front, humidification baffler and the pod apertures above the moistened membrane partition must be greatly more than six.For example when fuel battery humidification section is placed on fuel battery generating section front, no matter how are the baffler of generating section and six pod apertures positions above the electrode, on the humidification baffler of humidification section and moistened membrane partition, must increase by three pod apertures, be respectively that fuel hydrogen advances, the oxidant air advances and cooling water goes out.
Shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, six pod apertures positions of fuel battery generating section (back segment) are respectively: air outlet slit 1, humidification air intlet section 9, humidification hydrogen inlet section 10, hydrogen outlet 4, cooling water inlet 5, coolant outlet 11.And can have respectively with the pod apertures that baffler on the generating section and the pod apertures on the electrode are in same position on the humidification baffler of fuel battery humidification section (leading portion) and the moistened membrane partition: air outlet slit 1, humidification air intlet section 9, humidification hydrogen outlet section 10, hydrogen inlet 4, cooling water inlet 5, coolant outlet 11.And air intlet 2, hydrogen inlet 3, coolant outlet 6 also must be arranged on humidification baffler and the moistened membrane partition, in any case the position of above-mentioned three pod apertures can't be the same with the pod apertures position on the electrode with the baffler on the generating section.
When fuel battery humidification section was placed on fuel battery generating section back, situation was more serious.The baffler of back generating section and above the electrode except six pod apertures, three extra pod apertures have also been increased, these pod apertures are respectively: air advances 1, advance that air after the humidification section advances 9, hydrogen advances 4, advance that hydrogen after the humidification section advances 10, cooling water advances 5, air goes out 2, hydrogen goes out 3, cooling water goes out 11 and advances the humidification section, and cooling water goes out 6 and comes out from the humidification section, above-mentioned pod apertures has nine, as Fig. 2 d.
So the humidification section is placed on whole battery group back or front, humidification plate (baffler) all can cause having increased extraly many pod apertures with the guide plate and the electrode of moistened membrane partition or generating section.The existence of these pod apertures has taken effective work area of the guide plate and the electrode of humidification baffler and humidification diaphragm or generating section greatly.Thereby whole humidification segment length or generating section length are increased, thereby the power density of whole battery group is reduced.
2. these extra irregular pod apertures existence make the necessary particular design of processing and the consideration of the guide plate and the electrode of battery pack humidification section baffler and humidification diaphragm or generating section, because it is different fully on the baffler of humidification section and the baffler of humidification diaphragm and cell section and the electrode shape, many materials such as sealing ring etc. can't be unified to make use, thereby have wasted many materials.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of humidification section consistent with the fluid bore of generating section for the defective that overcomes above-mentioned prior art existence, effectively the integrated approach of the inner-humidification fuel batter with proton exchange film that work area is big.
Purpose of the present invention can be achieved through the following technical solutions: a kind of integrated approach of inner-humidification fuel batter with proton exchange film, comprise at least two group fuel cell packs and a central collector plate composition, described fuel cell pack comprises the humidification section, generating section, it is characterized in that, described at least two group fuel cell packs be arranged at central collector plate both sides or homonymy before, after, a left side, the right or up, upper/lower positions, the humidification section of described fuel cell pack is near central collector plate, this central authorities' collector plate is provided with air intlet, hydrogen inlet, coolant outlet, air, hydrogen enters the humidification section from central collector plate, enter generating section behind the humidification, flow out from the end plate of generating section end, described cooling water flows into from the back afflux end plate of generating section end, after generating section transmits the cooling generating section by heat, enter the humidification section, make air, the hydrogen humidification flows out from central collector plate again.
Described fuel cell pack comprises humidification section, generating section, and the humidification section is positioned at the pile front end, and near central collector plate, generating section is positioned at the pile rear end, near terminal back afflux end plate.
Described fuel cell pack also comprises current collecting master board, this current collecting master board be folded between humidification section and the generating section and the back afflux end plate of generating section end before, described current collecting master board be provided with at least one from top or from a left side and/or right electric current of drawing draw ear, this electric current is drawn ear and is provided with at least one connecting hole.
Described fuel cell pack has two groups, be arranged at front and back end, central collector plate both sides respectively, air, hydrogen are divided into two tributaries after the central collector plate in the middle of being positioned at flows into, flow into the humidification section of both sides pile dorsad, and the afflux end plate flows out behind the generating section end of both sides pile, cooling water afflux end plate behind the generating section end of both sides pile flows into relatively, and the central collector plate in the middle of being positioned at flows out.
Described fuel cell pack has two groups, be arranged at respectively about central collector plate homonymy and hold, the humidification section of end two piles about flowing into respectively after air, hydrogen flow into from central collector plate, and the afflux end plate flows out behind the generating section end of two piles, cooling water afflux end plate behind the generating section end of two piles flows into, and flows out from central collector plate.
Described fuel cell pack has two groups, be arranged at central collector plate homonymy upper-lower position respectively, air, hydrogen are from flowing into the humidification section of two piles of upper and lower settings after central collector plate flows into respectively, and the afflux end plate flows out behind the generating section end of two piles, cooling water afflux end plate behind the generating section end of two piles flows into, and flows out from central collector plate.
Described fuel cell pack has four groups, being arranged at central collector plate respectively all around holds, air, hydrogen are divided into four tributaries after the central collector plate in the middle of being positioned at flows into, flow into the humidification section of four piles all around respectively, and the afflux end plate flows out behind the generating section end of four piles, cooling water afflux end plate behind the generating section end of both sides pile flows into pile relatively, and the central collector plate in the middle of being positioned at flows out.
The baffler of described humidification section is identical with the baffler size of generating section, and this baffler is provided with design, the on all four air manhole appendix of processing, hydrogen manhole appendix, cooling water manhole appendix.
The baffle material of described humidification section comprises metal stainless steel, polycarbonate plastic, epoxy plate; The humidification segment electrode is made of permeable but air-locked amberplex.
Described cooling water is a deionized water.
Compared with prior art, the present invention can eliminate the unnecessary pod apertures that prior art adopts, make pod apertures size, quantity, position on humidification baffler and the humidification diaphragm, can accomplish with cell section (being generating section) in baffler and pod apertures size, quantity, position on the humidification diaphragm just the same, thereby both improved effective work area of humidification section baffler and humidification diaphragm, again can be in design with cell section on baffler and electrode be consistent, make some material (as sealing ring etc.) can be general.The present invention has following characteristics:
1. interior humidification section and generating section area size is the same, and all pod apertures sizes, position are the same, shown in Fig. 3 a, 3b, 3c;
2. all (totally six) import and outlets into and out of fluid are not arranged on the same end face of battery pile, and can be placed apart respectively three imports and three outlets of fuel hydrogen, oxidant air, cooling water, as above be placed on respectively shown in Fig. 3 a, 3b, the 3c on middle collector plate of pile and the terminal back afflux end plate.
3. electrode, pole plate and the humidification water conservancy diversion utmost point of battery pack and the effective area of humidification diaphragm increase greatly like this.
4. can improve the integrated compactedness of fuel cell pack greatly, increase power density.
Description of drawings
Fig. 1 a is existing back internally humidifying fuel cell air flow schematic diagram;
Fig. 1 b is for having back internally humidifying fuel cell hydrogen stream now to schematic diagram;
Fig. 1 c is for having back internally humidifying fuel cell cooling water flow now to schematic diagram;
Fig. 2 a is internally humidifying fuel cell air flow schematic diagram before existing;
Fig. 2 b is for having preceding internally humidifying fuel cell hydrogen stream now to schematic diagram;
Fig. 2 c is for having preceding internally humidifying fuel cell cooling water flow now to schematic diagram;
Fig. 2 d is existing back internally humidifying fuel cell generating section baffler and electrode structure schematic diagram;
Fig. 3 a is an internally humidifying fuel cell air flow schematic diagram of the present invention;
Fig. 3 b is that internally humidifying fuel cell hydrogen stream of the present invention is to schematic diagram;
Fig. 3 c is that internally humidifying fuel cell cooling water flow of the present invention is to schematic diagram;
Fig. 4 is the structural representation of the embodiment of the invention 1 internally humidifying fuel cell electrode and humidification diaphragm;
Fig. 5 is a humidification integrated fuel cell pile in the embodiment of the invention 1;
Fig. 6 is the structural representation of the embodiment of the invention 2 internally humidifying fuel cell electrodes and humidification diaphragm;
Fig. 7 is a humidification integrated fuel cell pile in the embodiment of the invention 2;
Fig. 8 is a humidification integrated fuel cell pile in the embodiment of the invention 3;
Fig. 9 is a humidification integrated fuel cell pile in the utility model embodiment 4.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments, the invention will be further described.
A kind of integrated approach of inner-humidification fuel batter with proton exchange film, as shown in Figure 5, this method is with two groups of fuel cell pack A, B carries out integrated assembling, in the middle of these two groups of fuel cell packs, be provided with central collector plate 12, fuel cell pack A, B comprises humidification section A1 respectively, B1 and generating section A2, B2, humidification section A1, B1 is near central collector plate 12, generating section A2, B2 is near terminal back afflux end plate 13, central authorities' collector plate 12 is provided with air intlet 1, hydrogen inlet 2, coolant outlet 6, terminal back afflux end plate 13 is provided with air outlet slit 2, hydrogen outlet 4, cooling water inlet 5; As Fig. 3 a, shown in the 3b, air, hydrogen is from being positioned at the air intlet 1 of middle central collector plate 12, after flowing into, hydrogen inlet 2 is divided into two tributaries, flow into both sides fuel cell pack A dorsad, the humidification section A1 of B, B1, air through humidification, hydrogen enters generating section A2, B2 takes place after the electrochemical reaction from generating section A2, air outlet slit 2 on the terminal back afflux end plate 13 behind the B2, hydrogen outlet 4 flows out, shown in Fig. 3 c, cooling water is from both sides fuel cell pack A, the generating section A2 of B, cooling water inlet 5 on the terminal back afflux end plate 13 behind the B2 flows into relatively, and flows out from the coolant outlet 6 that is positioned on the middle central afflux plate current 12.
Described fuel cell pack also comprises current collecting master board 14, this current collecting master board 14 is folded in humidification section A1 and generating section A2, between humidification section B1 and the generating section B2, be folded in pile A, current collecting master board 14 between B is provided with two electric currents of drawing from above and draws ear 141, this electric current is drawn ear 141 and is provided with a connecting hole 142, connect this connecting hole 142 by copper screw bolt 15, make pile A, the B series connection, before the afflux end plate 13 of generating section end, also be provided with current collecting master board 14, this current collecting master board 14 is provided with an electric current of drawing from a left side and draws ear 141, this electric current is drawn ear 141 and is provided with a connecting hole 142, by lead with the electric current of integrated form pile from pile A, the B left end is drawn.
Wherein, electrode and humidification diaphragm as shown in Figure 4, its " three advance three goes out " fluid flow port is arranged on Si Jiaochu, air intlet 1, air outlet slit 2, hydrogen inlet 3, hydrogen outlet 4, cooling water inlet 5, coolant outlet 6.
As shown in Figure 7, it is a kind of fork truck integrated fuel cell pile according to new method design and assembly of the present invention, this integrated fuel cell pile comprises two groups of fuel cell pack A, B, electrode and humidification diaphragm are as shown in Figure 6, central authorities' collector plate 12 is provided with air intlet 1, hydrogen inlet 3, coolant outlet 6, is respectively equipped with air outlet slit 2, hydrogen outlet 4, cooling water inlet 5 on the afflux end plate of pile A, B end.Described two groups of fuel cell pack A, B is arranged at respectively about central collector plate 12 homonymies and holds, hydrogen, the air intlet 1 of air on the central collector plate 12, after flowing into, hydrogen inlet 2 is divided into two tributaries, end fuel cell pack A about flowing into respectively, the humidification section A1 of B, B1, air through humidification, hydrogen enters generating section A2, B2 takes place after the electrochemical reaction from generating section A2, air outlet slit 2 on the terminal back afflux end plate 13 behind the B2, hydrogen outlet 4 flows out, cooling water is from fuel cell pack A, the generating section A2 of B, cooling water inlet 5 on the terminal back afflux end plate 13 behind the B2 flows into relatively, and the coolant outlet 6 from central collector plate stream 12 flows out.
Described fuel cell pack also comprises current collecting master board 14, this current collecting master board 14 is folded in humidification section A1 and generating section A2, between humidification section B1 and the generating section B2, be folded in pile A, current collecting master board 14 between B is provided with from the right side, the electric current that draw on a left side is drawn ear 141, this electric current is drawn ear 141 and is provided with a connecting hole 142, connect this connecting hole 142 by copper screw bolt 15, make pile A, the B series connection, before the afflux end plate 13 of generating section end, also be provided with current collecting master board 14, the current collecting master board 14 of this pile A is provided with an electric current of drawing from a left side and draws ear 141, also be provided with an electric current of drawing on the current collecting master board 14 of this pile B and draw ear 141 from the right side, electric current is drawn ear 141 and is provided with a connecting hole 142, by lead with the electric current of integrated form pile from pile A, end is drawn about B.
As shown in Figure 8, it is the another kind of integrated fuel cell pile of a kind of fork truck according to method design and assembly of the present invention, this integrated fuel cell pile comprises two groups of fuel cell pack A, B, central authorities' collector plate 12 is provided with air intlet 1, hydrogen inlet 3, coolant outlet 6, is respectively equipped with air outlet slit 2, hydrogen outlet 4, cooling water inlet 5 on the afflux end plate of pile A, B end.Described two groups of fuel cell pack A, B difference upper and lower settings is in central collector plate 12 homonymies, hydrogen, the air intlet 1 of air on the central collector plate 12, after flowing into, hydrogen inlet 2 is divided into two tributaries, end fuel cell pack A about flowing into respectively, the humidification section A1 of B, B1, air through humidification, hydrogen enters generating section A2, B2 takes place after the electrochemical reaction from generating section A2, air outlet slit 2 on the terminal back afflux end plate 13 behind the B2, hydrogen outlet 4 flows out, cooling water is from fuel cell pack A, the generating section A2 of B, cooling water inlet 5 on the terminal back afflux end plate 13 behind the B2 flows into relatively, and the coolant outlet 6 from central collector plate stream 12 flows out.
Described fuel cell pack also comprises current collecting master board 14, this current collecting master board 14 is folded in humidification section A1 and generating section A2, between humidification section B1 and the generating section B2, be folded in pile A, current collecting master board 14 between B is provided with from the right side, the electric current that draw on a left side is drawn ear 141, this electric current is drawn ear 141 and is provided with a connecting hole 142, connect this connecting hole 142 by copper screw bolt 15, make pile A, the B series connection, before the afflux end plate 13 of generating section end, also be provided with current collecting master board 14, the current collecting master board 14 of this pile A is provided with an electric current of drawing from a left side and draws ear 141, also be provided with an electric current of drawing on the current collecting master board 14 of this pile B and draw ear 141 from a left side, electric current is drawn ear 141 and is provided with a connecting hole 142, by lead with the electric current of integrated form pile from pile A, the B left end is drawn.
As shown in Figure 9, it is a kind of another kind of integrated fuel cell pile according to new method design and assembly of the present invention, this integrated fuel cell pile comprises four groups of fuel cell pack A, B, C, D, being arranged at collector plate 12 respectively all around holds, air, hydrogen is from being positioned at the air intlet 1 on the middle collector plate 12, after flowing into, hydrogen inlet 2 is divided into four tributaries, flow into respectively and hold fuel cell pack A all around, B, C, the humidification section A1 of D, B1, C1, D1, air through humidification, hydrogen enters generating section A2, B2, C2, D2 takes place after the electrochemical reaction from generating section A2, B2, C2, air outlet slit 2 on the terminal back afflux end plate 13 behind the D2, hydrogen outlet 4 flows out, cooling water is from fuel cell pack A, B, C, the generating section A2 of D, B2, C2, cooling water inlet 5 on the terminal back afflux end plate 13 behind the D2 flows into relatively, and the coolant outlet 6 from afflux plate current 12 flows out.
Described fuel cell pack also comprises current collecting master board 14, this current collecting master board 14 is folded in humidification section A1 respectively, B1, C1, D1 and generating section A2, B2, C2, between the D2, be folded in pile A, current collecting master board 14 between B is provided with two electric currents of drawing from above and draws ear, this electric current is drawn ear and is provided with a connecting hole, connect this connecting hole by copper screw bolt, make pile A, the B series connection, be folded in pile C, also be provided with two electric currents of drawing on the current collecting master board 14 between D humidification section and the generating section and draw ear from above, this electric current is drawn ear and is provided with connecting hole, connect this connecting hole by copper screw bolt and make pile C, the D series connection, at pile A, also be provided with current collecting master board 14 before the afflux end plate 13 of C generating section end, the current collecting master board 14 of pile A is provided with an electric current of drawing from the right side and draws ear 141, the current collecting master board 14 of pile C is provided with an electric current of drawing from a left side and draws ear 141, electric current is drawn ear 141 and is provided with a connecting hole 142, by screw rod or lead with pile A, the C series connection, the current collecting master board of pile B is provided with an electric current of drawing from a left side and draws ear, the current collecting master board of pile D is provided with an electric current of drawing from the right side and draws ear, electric current is drawn ear and is provided with connecting hole, and the electric current of whole integrated form pile is from pile B, end is drawn about D.
The baffler of described humidification section is identical with the baffler of generating section, and this baffler is provided with corresponding to air manhole appendix, hydrogen manhole appendix, cooling water manhole appendix.
Above-mentioned four groups of fuel cell packs, the mode that also can take to superpose is up and down carried out integrated, is about to pile A, B and superposes up and down, and pile C, D are superposeed up and down, and pile AB, the CD after will superposeing again is separately positioned on the both sides or the homonymy of central collector plate 12.
Described a plurality of fuel cell pack can tile and be arranged at forward and backward, the left side or right of central collector plate, and the mode that also can take to superpose is up and down carried out integrated.
Claims (10)
1, a kind of integrated approach of inner-humidification fuel batter with proton exchange film, comprise at least two group fuel cell packs and a central collector plate composition, described fuel cell pack comprises the humidification section, generating section, it is characterized in that, described at least two group fuel cell packs be arranged at central collector plate both sides or homonymy before, after, a left side, the right or up, upper/lower positions, the humidification section of described fuel cell pack is near central collector plate, this central authorities' collector plate is provided with air intlet, hydrogen inlet, coolant outlet, air, hydrogen enters the humidification section from central collector plate, enter generating section behind the humidification, from the end plate outflow of generating section end, described cooling water flows into from the back afflux end plate of generating section end, after generating section transmits the cooling generating section by heat, enter the humidification section, make air, the hydrogen humidification flows out from central collector plate again.
2. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1 is characterized in that, described fuel cell pack comprises humidification section, generating section, the humidification section is positioned at the pile front end, near central collector plate, generating section is positioned at the pile rear end, near terminal back afflux end plate.
3. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, described fuel cell pack also comprises current collecting master board, this current collecting master board be folded between humidification section and the generating section and the back afflux end plate of generating section end before, described current collecting master board be provided with at least one from top or from a left side and/or right electric current of drawing draw ear, this electric current is drawn ear and is provided with at least one connecting hole.
4. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, described fuel cell pack has two groups, be arranged at front and back end, central collector plate both sides respectively, air, hydrogen are divided into two tributaries after the central collector plate in the middle of being positioned at flows into, flow into the humidification section of both sides pile dorsad, and the afflux end plate flows out behind the generating section end of both sides pile, cooling water afflux end plate behind the generating section end of both sides pile flows into relatively, and the central collector plate in the middle of being positioned at flows out.
5. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, described fuel cell pack has two groups, be arranged at respectively about central collector plate homonymy and hold, the humidification section of end two piles about flowing into respectively after air, hydrogen flow into from central collector plate, and the afflux end plate flows out behind the generating section end of two piles, and cooling water afflux end plate behind the generating section end of two piles flows into, and flows out from central collector plate.
6. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, described fuel cell pack has two groups, be arranged at central collector plate homonymy upper-lower position respectively, air, hydrogen are from flowing into the humidification section of two piles of upper and lower settings after central collector plate flows into respectively, and the afflux end plate flows out behind the generating section end of two piles, and cooling water afflux end plate behind the generating section end of two piles flows into, and flows out from central collector plate.
7. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, described fuel cell pack has four groups, being arranged at central collector plate respectively all around holds, air, hydrogen are divided into four tributaries after the central collector plate in the middle of being positioned at flows into, flow into the humidification section of four piles all around respectively, and the afflux end plate flows out behind the generating section end of four piles, cooling water afflux end plate behind the generating section end of both sides pile flows into pile relatively, and the central collector plate in the middle of being positioned at flows out.
8. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1, it is characterized in that, the baffler of described humidification section is identical with the baffler size of generating section, and this baffler is provided with design, the on all four air manhole appendix of processing, hydrogen manhole appendix, cooling water manhole appendix.
9. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1 is characterized in that, the baffle material of described humidification section comprises metal stainless steel, polycarbonate plastic, epoxy plate; The humidification segment electrode is made of permeable but air-locked amberplex.
10. the integrated approach of a kind of inner-humidification fuel batter with proton exchange film according to claim 1 is characterized in that, described cooling water is a deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100420686A CN101325267A (en) | 2007-06-15 | 2007-06-15 | Method for integrating inner-humidification fuel batter with proton exchange film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100420686A CN101325267A (en) | 2007-06-15 | 2007-06-15 | Method for integrating inner-humidification fuel batter with proton exchange film |
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| Publication Number | Publication Date |
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| CN101325267A true CN101325267A (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100420686A Pending CN101325267A (en) | 2007-06-15 | 2007-06-15 | Method for integrating inner-humidification fuel batter with proton exchange film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915638A (en) * | 2012-12-31 | 2014-07-09 | 上海恒劲动力科技有限公司 | Humidifier for fuel cells and fuel cell stack with humidifier |
| CN109244507A (en) * | 2018-09-11 | 2019-01-18 | 大连锐格新能源科技有限公司 | A kind of fuel cell hydrogen reflow method |
| CN115172840A (en) * | 2022-09-08 | 2022-10-11 | 北京新研创能科技有限公司 | Fuel cell common end plate and double-stack fuel cell |
| WO2023044756A1 (en) * | 2021-09-24 | 2023-03-30 | 罗伯特·博世有限公司 | Fuel cell stack module |
-
2007
- 2007-06-15 CN CNA2007100420686A patent/CN101325267A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915638A (en) * | 2012-12-31 | 2014-07-09 | 上海恒劲动力科技有限公司 | Humidifier for fuel cells and fuel cell stack with humidifier |
| CN103915638B (en) * | 2012-12-31 | 2016-08-03 | 上海恒劲动力科技有限公司 | A kind of fuel cell humidifier and the fuel cell pack with this humidifier |
| CN109244507A (en) * | 2018-09-11 | 2019-01-18 | 大连锐格新能源科技有限公司 | A kind of fuel cell hydrogen reflow method |
| CN109244507B (en) * | 2018-09-11 | 2023-06-27 | 大连锐格新能源科技有限公司 | A kind of fuel cell hydrogen reflux method |
| WO2023044756A1 (en) * | 2021-09-24 | 2023-03-30 | 罗伯特·博世有限公司 | Fuel cell stack module |
| CN115172840A (en) * | 2022-09-08 | 2022-10-11 | 北京新研创能科技有限公司 | Fuel cell common end plate and double-stack fuel cell |
| CN115172840B (en) * | 2022-09-08 | 2022-11-08 | 北京新研创能科技有限公司 | Fuel cell common end plate and double-stack fuel cell |
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