CN1330031C - Pressure loss prevention structure of fuel cell - Google Patents
Pressure loss prevention structure of fuel cell Download PDFInfo
- Publication number
- CN1330031C CN1330031C CNB031208592A CN03120859A CN1330031C CN 1330031 C CN1330031 C CN 1330031C CN B031208592 A CNB031208592 A CN B031208592A CN 03120859 A CN03120859 A CN 03120859A CN 1330031 C CN1330031 C CN 1330031C
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- Prior art keywords
- fuel
- channel
- fuel cell
- pressure loss
- air
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- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 168
- 230000002265 prevention Effects 0.000 title abstract 3
- 238000003475 lamination Methods 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229920000867 polyelectrolyte Polymers 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 description 15
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- 230000036647 reaction Effects 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003487 electrochemical reaction Methods 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001639 boron compounds Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 241000720974 Protium Species 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Fuel Cell (AREA)
Abstract
The present invention discloses a pressure loss prevention structure of a fuel cell. The pressure loss prevention structures are respectively arranged at one side of a fuel pole and one side of an air pole, an electrolyte lamination is arranged at the place between the fuel pole and the air pole, and the opposite sides of the fuel pole and the air pole are respectively provided with a fuel channel and an air channel, and fuel and air solely circulate in an isolating plate of the fuel cell; the fuel channel is designed into a structure that the area of the channel is gradually increased from an inlet side and an outlet side, the channel blockage caused by hydrogen gas generated in reaction is prevented, the pressure loss of the fuel is reduced, and meanwhile, the performance of the fuel cell can be improved. The capacity of a fuel pump does not need increasing, the performance of the overall system can be improved, and thereby, the increase of cost, noise, and system volume can be prevented.
Description
Technical field
The present invention relates to utilize fuel cell to obtain the energy production system of electric energy, especially about with boron compound (BH
4) be in the fuel cell system of fuel, the pressure loss that can reduce the fuel cell of the pressure loss that causes because of generation hydrogen in the middle of reacting prevents structure.
Background technology
The human most of energy that uses is from fossil fuel.But, use fossil fuel can cause problems such as air pollution and acid rain, global warming, environment is made an extremely bad impression, and the service efficiency of energy is also very low.
The fuel cell that this as an alternative fossil fuel uses is different with general battery (2 primary cell), by fuel (hydrogen or hydrocarbon) being provided for negative electrode (anode) and oxygen being provided for anode (cathode) from the outside, make its back reaction carry out electrochemical reaction with the cell reaction of water, thereby produce electric current and heat, can be regarded as Blast Furnace Top Gas Recovery Turbine Unit (TRT) in fact.
According to electrolytical type fuel cell is classified: near the phosphoric acid type fuel cell of working 200 ℃ is arranged; The alkaline electrolyte type fuel cell of in 60～110 ℃ of scopes, working; The high-molecular electrolyte fuel battery of in ℃ scope of normal temperature～80, working; The fused carbonate electrolyte type fuel cell of in the high temperature of 500～700 ℃ of scopes, working; And the Solid Oxide Fuel Cell of under the hot environment more than 1000 ℃, working etc.
Above-mentioned fuel cell comprises as shown in Figure 1: be equipped with fuel electrodes and air pole, so that utilize the electrochemical reaction of hydrogen and oxygen to produce the fuel cell reaction heap 10 of electric energy; The tetrahydro boron H of the aqueous solution state that contains hydrogen is provided for described fuel electrodes
4(provide NaBH in fact
4) fuel supplies 20; The air that will comprise oxygen offers the air supply portion 30 of described air pole; Constitute to the electric energy efferent 40 of load the supply of electrical energy that fuel cell reaction heap 10 produces.
Fuel cell reaction heap 10 as shown in Figure 2, be to form by a plurality of units primary cell 11 (single cell) lamination, each unit primary cell comprises: dielectric film 12, the fuel electrodes 13 that forms at the both sides lamination across dielectric film 12 and air pole 14, at the division board 15 that makes fuel and air contact and circulate with air pole 14 with fuel electrodes 13 separately of the outside lamination of fuel electrodes 13 and air pole 14,16, the division board 15 of each comfortable both sides, the collector plate 17,18 of the formation collector electrode of 16 outside lamination constitutes.
Fuel electrodes 13 and air pole 14 constitute by support with at the catalyst layer of the two sides of support lamination, and support wherein is made of metallic nickel, and catalyst layer is made of the hydrogen-containing alloy of the reduction reaction of oxidation that is beneficial to hydrogen and oxygen.
Division board 15,16 adopt and to have good electrical conductivity and the stronger conductive materials that is similar to graphite of corrosion resistance, formed the fuel channel Cf by fuel respectively and pass through the air duct Co of air on fuel electrodes 13 and each medial surface that air pole 14 contact.And, separating plate 15 between the unit's of being arranged on primary cell 11, a side of 16 is provided with fuel channel Cf, and opposite side is provided with air duct Co and is arranged on fuel cell reaction to be piled the division board 15,16 of 10 both side ends just be provided with fuel channel Cf or air duct Co on medial surface.And the fuel channel Cf of division board 15,16 and air duct Co form crooked back and forth shape from its outlet that enters the mouth by identical number and identical width as shown in Figure 3 and Figure 4.
Collector plate 17,18th finally obtains the electrode of electric energy from fuel cell reaction heap 10, adopt copper product usually.
15a and 16a represent fuel and air intake among the figure, 15b and 16b represent fuel and air outlet slit, 15c and 16c represent the guide protrusions of fuel-side and air side, 15d and 16d represent the passage projection of fuel-side and air side, and 15e and 16e represent the channel slot of fuel-side and air side, 21 expression tanks, 22 expression fuel supply pipes, 23 expression petrolifts, 31 expression air supply pipes, 32 expression air pumps.
Aforesaid fuel cell reaction heap in the past is as follows with the act as a fuel process that produces electric energy of boron compound:
Be fed to division board 15,16 fuel channel Cf and the fuel of air duct Co and air are passing through each fuel electrodes (negative electrode, anode) and air pole (anode, cathode) in the process, hydrogen in the fuel and oxygen carry out electrochemical reaction, produce electric current when generating water between two electrodes.Below it is elaborated: BH takes place in fuel electrodes 13
4 -+ 8OH
-→ BO
2 -+ 6H
2O+8e
-Electrochemical oxidation reactions, at this moment dielectric film 12 transmits the ion that produces in the oxidation/reduction reactions, and produces 2O on air pole 14
2+ 4H
2O+8e
-→ 8OH
-The electrochemical reducting reaction of air (oxygen).So between fuel electrodes 13 and air pole 14, produce electric current, and the collector plate 17,18 that the electric current that produces is piled 10 two ends by the fuel cell reaction that is arranged on a plurality of units primary cell 11 laminations is fed in the load.
But, in the aforesaid fuel cell reaction heap in the past, along with the carrying out of reaction, in the fuel electrodes side 2H takes place
2O+NaBH
4→ NaBO
2+ 4H
2Side reaction, cause fuel (NaBH
4The aqueous solution) produce hydrogen in, so more near division board 15,16 outlet, the density of the unit are of hydrogen is just big more, and the fuel channel of division board 15,16 and air duct be as shown in Figure 2 in the past, the passage of entrance side and the channels designs of outlet side the identical cross-sectional area and the version of same number have been become to have, therefore approaching more outlet hydrogen cause the fuel pressure drop big more, need to increase the capacity of petrolift 23, finally cause the increase of production cost and the volume of product to increase.
Summary of the invention
Technical problem to be solved by this invention provides that fuel channel pressure that a kind of hydrogen that can prevent to produce in the fuel combustion process causes descends and the pressure loss of the fuel cell of the pressure loss that causes thus prevents structure.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of pressure loss of fuel cell prevents structure, the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of dielectric film lamination, and on the opposite face of fuel electrodes and air pole, be provided with fuel channel and air duct respectively, so that fuel and air circulate separately, blast tube is designed to the structure of widening gradually to the outlet side area from entrance side.
Can from the entrance side to the outlet side, increase the fuel channel number gradually.
Can be from the entrance side to the outlet side area of each fuel channel all identical.
Can from the entrance side to the outlet side, increase the cross-sectional area of fuel channel gradually.
A kind of pressure loss of fuel cell prevents structure, the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of dielectric film lamination, and with the opposite face of fuel electrodes and air pole on be provided with the vertical channel that on planar structure, possessed the Z font structure and the fuel channel and the air duct of horizontal channel, so that fuel and air circulation separately mutually, the passage section area is identical or increase gradually from the porch to the exit, and increases the number of fuel channel gradually to the exit from the porch of vertical channel or horizontal channel.
From the outlet that enters the mouth, the vertical channel of fuel channel or horizontal channel cross-sectional area are identical.
From the outlet that enters the mouth, the vertical channel of fuel channel or horizontal channel cross-sectional area increase gradually.
The vertical channel of fuel channel and the cross-sectional area of horizontal channel are designed to different sizes.
A kind of pressure loss of fuel cell prevents structure, and the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of polyelectrolyte membrane lamination, at the sodium boorohyride NaBH that aqueous solution state is provided to fuel electrodes
4The time provide air to air pole, and be provided with and can make fuel and the air fuel channel and the air duct of circulation separately, the structure of widening gradually to the outlet side area from the entrance side of fuel channel.
Can export the quantity that increases fuel channel gradually from entering the mouth to.
The cross-sectional area that can export each fuel channel from entering the mouth to is all identical.
Can export the cross-sectional area that increases each fuel channel gradually from entering the mouth to.
The pressure loss of the fuel cell of the present invention's design prevents that structure from exporting the number that has increased fuel channel gradually from entering the mouth to, increased aisle spare thus gradually, thereby the passage that has prevented to cause at the hydrogen that reaction carries out being produced in the process stops up, reduce the pressure loss of fuel, improved fuel cell performance.And, under the situation of the capacity that does not increase petrolift, improve overall system efficiency, thereby can reduce cost, reduce noise and prevented the excessive of system bulk.
Description of drawings
Fig. 1 is the system diagram of fuel cell in the past.
Fig. 2 is the skiagraph of fuel cell reaction heap in the past the fuel cell.
Fig. 3 and Fig. 4 are the stereogram and the plane graphs of fuel cell reaction heap division board in the past.
Fig. 5 and Fig. 6 are the stereogram and the plane graphs of the fuel cell reaction heap division board that designs of the present invention.
Fig. 7 is the plane graph of another example of fuel cell isolation board of designing of the present invention.
Fig. 8 is that the pressure with the division board of the present invention design falls and the curve chart that in the past compared.
Among the figure, 100: division board; 110: plate body; 120: enclose frame portion; 121: feeder connection; 122: channel outlet; 130: block portion; 131: interface channel; 140: channel part; 141: guide hump; 142: guiding groove; 150: dispenser; Cf: fuel channel.
Embodiment
Below in conjunction with the drawings and specific embodiments the pressure loss of fuel cell of the present invention is prevented that structure is described in further detail:
Shown in Fig. 5,6, the division board 100 of the fuel cell of the present invention's design is positioned at middle across the fuel electrodes of macroion exchange membrane lamination and the outside of air pole, and on the face that joins with fuel electrodes and air pole, respectively be provided with fuel channel Cf and air duct (not shown), and increase gradually near the quantity of outlet side fuel channel Cf.
The plate body 110 of division board 100 preferably uses the good and stronger conductive materials that is similar to graphite of corrosion resistance of conductivity as previously mentioned.The entrance and exit of fuel channel Cf and air duct (not shown) can adopt various forms of structures, and in the present embodiment, fuel channel Cf is from the structure of the interruption-forming that enters the mouth to ' Z ' font.
Fuel channel Cf protrudes from the periphery of division board plate body 110, comprising: possessed and enter the mouth 121 and outlet 122 the frame portion 120 that encloses, be connected the portion of blocking 130 that encloses in the frame portion 120 and protrude in the horizontal, protrude between the portion of blocking 130 and form the channel part 140 of ' embankment ', form the dispenser 150 of the distribution fuel of interworking architecture at the two ends of channel part 140 with ' Z ' font.
Enclose the inlet 121 and the outlet 122 of frame portion 120 and can adopt different shape, but be designed to identical basal area haply.If consider the pressure in the passage, can increase the cross-sectional area of outlet.
Block portion 130 if consider the leakage of fuel, the height of head end face should be arranged to and enclose the identical height of frame portion 120 head end faces.And, when the portion's of blocking 130 left-hand end are connected when enclosing frame portion 120, its right-hand end and enclose the interface channel 131 of being separated by between the frame portion 120; The shape of its front-end and back-end is opposite simultaneously, forms ' Z ' font structure thus on the whole.
As shown in Figure 6, for the number of the guide protrusions 141 that increases the described channel part 140 that blocks portion 130 gradually, should export from entering the mouth to increase spacing L1, L2 gradually.
Channel part 140 with enclose frame portion 120 and block portion 130 identical, should use unified head end face, from the entrance side to the outlet side, increase number gradually, guarantee and make the spacing between each passage 140 identical.And the gathering sill 142 of recessed formation ' ditch ' between channel part 140 adopts the identical degree of depth, makes the cross-sectional area of whole passage all identical.
Dispenser 150 is recessed on the longitudinal direction at channel part 140 two ends, and its cross-sectional area is wider than the cross-sectional area of channel part 140 gathering sills, and the cross-sectional area that exports from entering the mouth to is all identical.
The division board of the fuel cell of aforesaid the present invention's design has following effect:
Provide the sodium boorohyride that comprises protium (NaBH to fuel electrodes
4) time, provide the air that comprises oxygen to air pole, so that the reaction of they and dielectric film generates ion.When ion carried out electrochemical reaction generation water, electron ion moved to air pole from fuel electrodes and produces electric current.
Below, it is described in detail:
BH takes place in fuel electrodes
4 -+ 8OH
-→ BO
2 -+ 6H
2O+8e
-Electrochemical oxidation reactions, at this moment dielectric film transmits the ion that produces in the oxidation/reduction reaction, and produces 2O on air pole
2+ 4H
2O+8e
-→ 8OH
-The electrochemical reducting reaction of air (oxygen).
So between fuel electrodes and air pole, produce electric current, and the collector plate that these electric currents are piled two ends by the fuel cell reaction that is arranged on a plurality of units primary cell lamination is fed in the load.
Along with the carrying out of reaction, in the fuel electrodes side 2H takes place
2O+NaBH
4→ NaBO
2+ 4H
2Side reaction, cause fuel (NaBH
4The aqueous solution) produce hydrogen in, cause in the fuel channel Cf just big more near exporting unit's area density more.And the division board of the present invention design from entrance side 121 to outlet side 122 channel part 140 numbers that increased fuel channel Cf gradually, and the area that makes outlet side on the whole is greater than entrance side, the fuel flow resistance that the hydrogen that produces in can reducing thus to react causes, and reduction pressure loss that as shown in Figure 8 can be bigger.
An alternative embodiment of the invention is as follows:
In the foregoing embodiments, in order to increase the cross-sectional area of fuel channel Cf gradually and to have increased the number of channel part 140 gradually to outlet 122 sides from 121 sides that enter the mouth.According to circumstances, as shown in Figure 7, can reduce channel part 240 guide protrusions 241 number or under the constant situation of guide protrusions 241 quantity, can enlarge the cross-sectional area of the gathering sill 242 of each channel part 240 gradually.When reducing guide protrusions 241 numbers of channel part 240, the spacing of each cut-out portion 230 can be kept identical width here; And the spacing of each cut-out portion will strengthen gradually when guide protrusions 241 numbers that do not change channel part 240.
Simultaneously, also can increase the spacing L4 of dispenser 250 as shown in Figure 7 gradually, L5.At this moment, the width of the guide protrusions 241 of each channel part 240 can be designed to identical width or increase width gradually near outlet, also can keep each spacing of blocking portion 230 or enlarge spacing gradually near outlet.
All be to have adopted on the whole in each embodiment with respect to the inlet side section Method for Area of increasing export, the pressure loss of the fuel that the hydrogen that has prevented to produce in the reaction causes, and improved fuel cell performance thus.
The present invention can not be confined to above-mentioned example, can carry out various variations under the guidance of present technique guiding theory.
Claims (12)
1, a kind of pressure loss of fuel cell prevents structure, the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of dielectric film lamination, and on the opposite face of fuel electrodes and air pole, be provided with fuel channel and air duct respectively, so that fuel and air circulate separately, it is characterized in that blast tube is designed to the structure of widening gradually to the outlet side area from entrance side.
2, the pressure loss of fuel cell according to claim 1 prevents structure, it is characterized in that increasing gradually from the entrance side to the outlet side fuel channel number.
3, the pressure loss of fuel cell according to claim 2 prevents structure, it is characterized in that the area of each fuel channel from the entrance side to the outlet side is all identical.
4, the pressure loss of fuel cell according to claim 1 and 2 prevents structure, it is characterized in that increasing gradually from the entrance side to the outlet side cross-sectional area of fuel channel.
5, a kind of pressure loss of fuel cell prevents structure, the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of dielectric film lamination, and with the opposite face of fuel electrodes and air pole on be provided with the vertical channel that on planar structure, possessed the Z font structure and the fuel channel and the air duct of horizontal channel, so that fuel and air circulation separately mutually, it is characterized in that, the passage section area is identical or increase gradually from the porch to the exit, and increases the number of fuel channel gradually to the exit from the porch of vertical channel or horizontal channel.
6, the pressure loss of fuel cell according to claim 5 prevents structure, it is characterized in that from the outlet that enters the mouth, and the vertical channel of fuel channel or horizontal channel cross-sectional area are identical.
7, the pressure loss of fuel cell according to claim 5 prevents structure, it is characterized in that from the outlet that enters the mouth, and the vertical channel of fuel channel or horizontal channel cross-sectional area increase gradually.
8,, it is characterized in that the vertical channel of fuel channel and the cross-sectional area of horizontal channel are designed to different sizes according to the anti-locking apparatus of the pressure loss of claim 6 or 7 described fuel cells.
9, a kind of pressure loss of fuel cell prevents structure, and the division board of fuel cell is positioned at the outside of centre across the fuel electrodes and the air pole of polyelectrolyte membrane lamination, at the sodium boorohyride NaBH that aqueous solution state is provided to fuel electrodes
4The time provide air to air pole, and be provided with and can make fuel and the air fuel channel and the air duct of circulation separately, it is characterized in that the structure of widening gradually to the outlet side area from the entrance side of fuel channel.
10, the pressure loss of fuel cell according to claim 9 prevents structure, it is characterized in that exporting from entering the mouth to the quantity that increases fuel channel gradually.
11, the pressure loss of fuel cell according to claim 10 prevents structure, and the cross-sectional area that it is characterized in that exporting from entering the mouth to each fuel channel is all identical.
12, the pressure loss of fuel cell according to claim 10 prevents structure, it is characterized in that exporting from entering the mouth to the cross-sectional area that increases each fuel channel gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208592A CN1330031C (en) | 2003-03-25 | 2003-03-25 | Pressure loss prevention structure of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208592A CN1330031C (en) | 2003-03-25 | 2003-03-25 | Pressure loss prevention structure of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532979A CN1532979A (en) | 2004-09-29 |
| CN1330031C true CN1330031C (en) | 2007-08-01 |
Family
ID=34285467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031208592A Expired - Fee Related CN1330031C (en) | 2003-03-25 | 2003-03-25 | Pressure loss prevention structure of fuel cell |
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| Country | Link |
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| CN (1) | CN1330031C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711472A (en) * | 2017-01-20 | 2017-05-24 | 爱德曼氢能源装备有限公司 | Bipolar plate structure of fuel cell |
| CN109904483B (en) * | 2019-03-01 | 2021-02-05 | 山东大学 | Fuel cell bipolar plate flow field, bipolar plate and stack structure |
| CN113299952B (en) * | 2021-05-10 | 2022-07-12 | 浙江万里学院 | A kind of driving method of high-efficiency reaction battery |
| CN115513486B (en) * | 2022-10-27 | 2024-03-01 | 中汽创智科技有限公司 | Monopolar plate, bipolar plate, electric pile and fuel cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176315A (en) * | 1993-12-21 | 1995-07-14 | Tokyo Gas Co Ltd | Flat plate type solid electrolyte fuel cell system |
| CN1149933A (en) * | 1994-03-21 | 1997-05-14 | 兹特克公司 | Electrochemical converter having optimal pressure distribution |
| CN1337754A (en) * | 2000-08-03 | 2002-02-27 | 北京世纪富原燃料电池有限公司 | Fuel cell electricity-generating system containing residual gas self-circulating device |
| US6361892B1 (en) * | 1999-12-06 | 2002-03-26 | Technology Management, Inc. | Electrochemical apparatus with reactant micro-channels |
| JP2002252012A (en) * | 2001-02-23 | 2002-09-06 | Asahi Kasei Corp | Humidifier |
-
2003
- 2003-03-25 CN CNB031208592A patent/CN1330031C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176315A (en) * | 1993-12-21 | 1995-07-14 | Tokyo Gas Co Ltd | Flat plate type solid electrolyte fuel cell system |
| CN1149933A (en) * | 1994-03-21 | 1997-05-14 | 兹特克公司 | Electrochemical converter having optimal pressure distribution |
| US6361892B1 (en) * | 1999-12-06 | 2002-03-26 | Technology Management, Inc. | Electrochemical apparatus with reactant micro-channels |
| CN1337754A (en) * | 2000-08-03 | 2002-02-27 | 北京世纪富原燃料电池有限公司 | Fuel cell electricity-generating system containing residual gas self-circulating device |
| JP2002252012A (en) * | 2001-02-23 | 2002-09-06 | Asahi Kasei Corp | Humidifier |
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| Publication number | Publication date |
|---|---|
| CN1532979A (en) | 2004-09-29 |
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