CN208955111U - A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape - Google Patents
A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape Download PDFInfo
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- CN208955111U CN208955111U CN201821785722.2U CN201821785722U CN208955111U CN 208955111 U CN208955111 U CN 208955111U CN 201821785722 U CN201821785722 U CN 201821785722U CN 208955111 U CN208955111 U CN 208955111U
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- flow field
- interdigitated
- vein shape
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- 210000003462 vein Anatomy 0.000 title claims abstract description 39
- 239000000446 fuel Substances 0.000 title claims abstract description 26
- 239000012495 reaction gas Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims description 167
- 238000007514 turning Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000009792 diffusion process Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000007717 exclusion Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 7
- 241000270295 Serpentes Species 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000034964 establishment of cell polarity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007770 graphite material Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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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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- Fuel Cell (AREA)
Abstract
The utility model relates to a kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape, including bipolar plates ontology, interdigitated flow field is provided on the bipolar plates ontology, the interdigitated flow field is rounded or regular polygon, using flow field central point as the center of circle, the interdigitated flow field includes the local flow field for being divided into n equal portions, n >=2, the local flow field includes reaction gas inlet, reaction gas outlet, vein shape air inlet runner and snakelike outlet and draining runner, the reaction gas inlet is set to vein shape air inlet runner outer end, the reaction gas outlet is set to snakelike outlet and draining runner outer end.By using above-mentioned technical proposal, keep battery entirety mass transfer more uniform, the design of Active Drainage runner can promote the exclusion of middle liquid water in flow channel out simultaneously, liquid water to make reaction generate is easier to further reduce liquid water the phenomenon that inlet end is detained toward flow channel diffusion is gone out.
Description
Technical field
The utility model relates to dual polar plates of proton exchange membrane fuel cell, in particular to a kind of Active Drainage vein shape is interdigital
Type flow field fuel battery double plates.
Background technique
Proton Exchange Membrane Fuel Cells (Proton Exchange Membrane Fuel Cell, PEMFC) has because of it
The advantages that energy transformation ratio is high, pollution-free, starting is fast and there is considerable market application prospect.Compared with heat engine, fuel cell
Chemical energy be directly translated into electric energy, do not need primary transformants into thermal energy.Therefore, conversion is not limited by Carnot cycle, theoretical
On the high efficiency of 90% conversion may be implemented.
The core of fuel cell is membrane electrode and bipolar plates.Membrane electrode is the place of electrochemical reaction；Bipolar plates provide gas
Body distribution and collected current, in order to complete gas distribution and this two tasks of collected current, bipolar plates are usually conductive, table
There are concave-convex two parts in face, wherein protrusion part (collected current spine) is used to contact with electrode, collected current；Negative area
(flow field) provides channel to electrode surface transmitting for gas, this part for containing concaveconvex structure of bipolar plates claims flow field.
In fact, the capacity efficiency of fuel cell is heavily dependent on the structure of bipolar plate flow field, good flow field
Structure can improve the flow regime of reactant and product, make electrode that can obtain reactant in time everywhere, and can be in time
Cooling water is excluded, the generating efficiency of fuel cell is improved.
There are parallel flow field, snake type flow field and interdigitated flow field in the flow field of common dual polar plates of proton exchange membrane fuel cell.
One remarkable advantage of parallel flow field is that the overall presure drop between gas feed and outlet is lower, but works as the width in flow field relatively
When big, the fluid distrbution in each flow field will appear non-uniform phenomenon, this will cause the accumulation of the water of partial region, cause
The increase for transmitting consume, to reduce current density.
The advantages of snake type flow field, is drainability, and single flow path can push the discharge of liquid water.But in large area
Flow field in, the pressure drop in snake type flow field is very big, and Gas concentration distribution is uneven.
The design in interdigitated flow field promotes forced convertion of the reaction gas in diffusion layer, and the effect of water management is far excellent
In parallel flow field and snake type flow field, but the forced convertion in gas diffusion layers causes very big pressure drop to be lost.
Leaf vein texture widely exists in the Nature, is the product of nature long-term evolution, therefore in terms of mass transfer transport
There are many excellent characteristics, with bionic development, more and more researchers are applied to scientific research.
In current state of the art, since the interdigitated flow field pressure drop of tradition is big, when battery output services, in effective area
The inhomogeneities of reactant distribution makes in region electrochemical reaction and insufficient, and the utilization rate of reactant and motor is caused to drop
It is low, to will affect the stability of electric current output, while in interdigitated flow field, the end of runner is obstructed, gas quilt
Compel to enter adjacent channels by the diffusion layer under collected current spine, the major defect in this flow field be battery outlet port part by
The accumulation of water is generated in battery, liquid water is more to be easy to cause battery water logging, influences battery performance.
Utility model content
In conclusion in order to overcome the deficiencies of the prior art, the utility model provides one kind and more uniformly distributes reaction gas
To each branch flow passage, it is more advantageous to the heat management of battery, the interdigitated flow field combustion of Active Drainage vein shape of battery performance can be promoted
Expect cell bipolar plate.
To achieve the above object, the utility model provides following technical solution: a kind of Active Drainage vein shape is interdigitated
Flow field fuel battery double plates, including bipolar plates ontology are provided with interdigitated flow field on the bipolar plates ontology, described interdigitated
Flow field is rounded or regular polygon, and using flow field central point as the center of circle, the interdigitated flow field includes the part for being divided into n equal portions
Flow field, n >=2, the local flow field include reaction gas inlet, reaction gas outlet, draining gas access, vein shape air inlet runner and
Snakelike outlet and draining runner, the reaction gas inlet are set to vein shape air inlet runner outer end, reaction gas outlet setting
In snakelike outlet and draining runner inner end, the draining gas access is set to snakelike outlet and draining runner outer end.
By using above-mentioned technical proposal, interdigitated flow field includes multiple local flow fields, local flow field include vein shape into
Flow channel and snakelike outlet and draining runner, more traditional interdigitated length that single flow channel is shortened with traditional serpentine flow, subtract
Lacked because runner it is too long caused by pressure be unevenly distributed the case where, keep battery entirety mass transfer more uniform, while Active Drainage stream
The design in road can promote the exclusion of middle liquid water in flow channel out, so that the liquid water for generating reaction is easier toward flow channel out
Diffusion further reduces liquid water the phenomenon that inlet end is detained.
The utility model is further arranged: the reaction gas inlet includes the first air inlet and the second air inlet, the leaf
Veiny air inlet runner includes first gas runner and second gas runner, and first air inlet is set to the first gas stream
Road outer end, second air inlet are set to second gas runner outer end, the first gas runner and second gas stream
The snakelike outlet and draining runner are provided between road.
Pressure drop can be reduced using more than one reaction gas inlet and vein shape runner by using above-mentioned technical proposal,
Using first gas runner and second gas runner, shorten the length of single flow channel, reduce because runner it is too long caused by pressure
The case where power is unevenly distributed keeps battery entirety mass transfer more uniform.
The utility model is further arranged: the first gas runner includes first gas trunk runner and a plurality of first gas
Body branch flow passage, the first gas branch flow passage are set on the first gas trunk runner, the first gas branch
Runner is connected with the first gas trunk runner, and the second gas runner includes second gas trunk runner and a plurality of
Two gas branch runners, the second gas branch flow passage are set on the second gas trunk runner, the second gas
Branch flow passage is connected with the second gas trunk runner.
By using above-mentioned technical proposal, multiple flow passages setting enhances gaseous exchange in effective area by pressure difference and expands
The ability of dissipating, evenly distributes reaction gas to each branch flow passage, reaction gas is enable to be evenly distributed in reactive flowfield, to mention
Rise the performance of battery.
The utility model is further arranged: the first gas branch flow passage and the second gas branch flow passage are in interdigital
The angle of type setting, the first gas branch flow passage and first gas trunk runner is 90 ° -90 °/n, the second gas point
Branch flow passage and the angle of second gas trunk runner and the angle of the first gas branch flow passage and first gas trunk runner
Equal, the angle between the first gas trunk runner and the second gas trunk runner is 180 °/n.
By using above-mentioned technical proposal, the first gas branch flow passage and the second gas branch flow passage are in interdigital
Type structure setting, runner discontinuously force gases under pressure effect and participate in reaction across diffusion layer, improve the utilization of gas
Rate and cell power density, to promote the performance of battery.
The utility model is further arranged: the interdigitated flow field includes 2n reaction gas inlet, n first gas stream
Road, n second gas runner and 2n snakelike outlet and draining runner.
By using above-mentioned technical proposal, multiterminal import, flow channel length shortens, and can reduce pressure drop, reinforces electric current output
Stability.
The utility model is further arranged: the vein shape air inlet runner width is k1, depth k1, and back width is
0.5 k1。
By using above-mentioned technical proposal, vein shape air inlet runner width is identical with depth, easy to process, and back width is
0.5 k1 is conducive to reinforce gaseous exchange and diffusivity.
The utility model is further arranged: k1=0.6~1 mm.
By using above-mentioned technical proposal, as k1<0.6 mm, will affect the leakproofness and air-tightness of bipolar plates, work as k1>
When 1 mm, the excessively high ohmic polarization for increasing battery of the percent opening for causing bipolar plates is lost, while increasing material loss, increase at
This.
The utility model is further arranged: the snakelike outlet and draining runner include and the first gas trunk runner
Parallel first turn, the third parallel with the second gas trunk runner turns and be connected to first and turn and turn with third
Second turns, and the turning sum in the snakelike outlet and draining runner is 10, and the turning angle is 90 ° -90 °/n or 90 °+
90 °/n, cross section of fluid channel shape is square, and width of flow path and depth are k2, and back width is reduced along draining runner direction by k2
For 0.5k2, gradient 0.1k2.
By using above-mentioned technical proposal, snakelike outlet and the draining more turnings of runner considerably increase unit-gas flow field
Flow channel length in area, makes pressure drop become larger, and has played the advantage of serpentine flow path water conservancy diversion, is conducive to drain, further reduce
For liquid water the phenomenon that inlet end is detained, draining runner form is snakelike single channel, guarantees the validity of draining, actively arranges
The setting of water flow passage improves water logging phenomenon caused by the interdigitated deficiency because of pressure drop of tradition, promotes the performance and stability of battery.
The utility model is further arranged: k2=0.6~1 mm.
By using above-mentioned technical proposal, the output density of average current is higher.
Specific embodiment of the present invention is described with reference to the accompanying drawings and embodiments.
Detailed description of the invention
Fig. 1 is the planar structure schematic diagram of the utility model embodiment one；
Fig. 2 is the three dimensional structure diagram of the utility model embodiment one；
Fig. 3 is the three dimensional structure diagram of one local flow field of the utility model embodiment；
Fig. 4 is the planar structure schematic diagram of the utility model embodiment two；
Fig. 5 is the three dimensional structure diagram of the utility model embodiment two；
Fig. 6 is the cell polarization curves comparison diagram of the utility model embodiment.
Appended drawing reference: 1. bipolar plates ontologies, 2. interdigitated flow fields, 21. local flow fields, 3. reaction gas inlets, 31. first into
Port, 32. second air inlets, the outlet of 4. reaction gas, 5. draining gas accesses, 6. vein shape air inlet runners, 61. first gas streams
Road, 611. first gas trunk runners, 612. first gas branch flow passages, 62. second gas runners, 621. second gas trunks
Runner, 622. second gas branch flow passages, 7. snakelike outlets and draining runner, 71. first turn, and 72. second turn, and 73.
Third turns.
Specific embodiment
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Referring to attached drawing 1-6, a kind of interdigitated flow field fuel of Active Drainage vein shape disclosed in technical solutions of the utility model
Cell bipolar plate, including bipolar plates ontology 1 are provided with interdigitated flow field 2, the interdigitated flow field 2 on the bipolar plates ontology 1
Rounded or regular polygon, using flow field central point as the center of circle, the interdigitated flow field 2 includes the local flow for being divided into n equal portions
Field 21, n >=2, the local flow field 21 include reaction gas inlet 3, reaction gas outlet 4, draining gas access 5, vein shape air inlet
Runner 6 and snakelike outlet and draining runner 7, the reaction gas inlet 3 are set to 6 outer end of vein shape air inlet runner, the reaction
Gas outlet 4 is set to snakelike outlet and draining 7 inner end of runner, and the draining gas access 5 is set to snakelike outlet and blowdown stream
7 outer end of road.
Described herein " interdigitated flow field rounded or regular polygon ", refers to that the interdigitated flow field can be circle,
It may be regular polygon, change since the interdigitated flow field patterns can be different according to n value, when n value is bigger, hand over
Finger-type flow field patterns more connect circle.
Technical solutions of the utility model are further arranged: the reaction gas inlet 3 include the first air inlet 31 and second into
Port 32, the vein shape air inlet runner 6 include first gas runner 61 and second gas runner 62, first air inlet 31
It is set to 61 outer end of first gas runner, second air inlet 32 is set to 62 outer end of second gas runner, institute
It states and is provided with the snakelike outlet and draining runner 7 between first gas runner 61 and second gas runner 62.
In technical solutions of the utility model, " it is arranged between the first gas runner 61 and second gas runner 62
Snakelike outlet and draining runner 7 " are stated, is referred in same local flow field 21, the first gas runner 61 and second gas runner 62
Between be provided with the snakelike outlet and draining runner 7；Also refer to the of the first gas runner 61 and adjacent local flow field 21
The snakelike outlet and draining runner 7 are also equipped between two gas flows 62.
In technical solutions of the utility model, in entire interdigitated flow field 2, first gas runner 61 and second gas runner
62 are alternately distributed on a circle.
Technical solutions of the utility model are further arranged: the first gas runner 61 includes first gas trunk runner
611 and a plurality of first gas branch flow passage 612, the first gas branch flow passage 612 be set to the first gas main stream
On road 611, the first gas branch flow passage 612 is connected with the first gas trunk runner 611, the second gas stream
Road 62 includes second gas trunk runner 621 and a plurality of second gas branch flow passage 622, the second gas branch flow passage 622
It is set on the second gas trunk runner 621, the second gas branch flow passage 622 and the second gas trunk runner
621 are connected.
Technical solutions of the utility model are further arranged: the first gas branch flow passage 612 and the second gas point
The setting of 622 interdigital of branch flow passage, the angle of the first gas branch flow passage 612 and first gas trunk runner 611 are
90 ° -90 °/n, the second gas branch flow passage 622 divides with the angle of second gas trunk runner 621 and the first gas
Branch flow passage 612 is equal with the angle of first gas trunk runner 611, the first gas trunk runner 611 and second gas
Angle between body trunk runner 621 is 180 °/n.
In technical solutions of the utility model, the first gas trunk runner 611, the second gas trunk runner 621
Isosceles triangle, the first gas trunk runner 611 and the second gas trunk are constituted with first gas branch flow passage 612
Angle between runner 621 is 180 °/n, the angle of the first gas branch flow passage 612 and first gas trunk runner 611
For (180 ° -180 °/n)/2, i.e. 90 ° -90 °/n.
Technical solutions of the utility model are further arranged: the interdigitated flow field 2 includes 2n reaction gas inlet 3, n a the
One gas flow 61, n second gas runner 62 and 2n snakelike outlet and draining runner 7.
Technical solutions of the utility model are further arranged: 6 width of vein shape air inlet runner is k1, depth k1, ridge
Across back degree is 0.5 k1.
Technical solutions of the utility model are further arranged: k1=0.6~1 mm.
Technical solutions of the utility model are further arranged: the snakelike outlet and draining runner 7 include and first gas
Body trunk runner 611 is parallel first to turn the 71, third parallel with the second gas trunk runner 621 and turns 73 and be connected to
First, which turns 71, turns 73 with third and second turns 72, and the turning sum in the snakelike outlet and draining runner 7 is 10, institute
Stating turning angle is 90 ° -90 °/n or 90 °+90 °/n, and cross section of fluid channel shape is square, and width of flow path and depth are k2, back
Width is 0.5k2, gradient 0.1k2 by k2 decrement along draining runner direction.
In technical solutions of the utility model, the first gas trunk runner 611, the first gas trunk runner 611
Isosceles triangle is constituted with first gas branch flow passage 612, the snakelike outlet and draining runner turning include obtuse angle and acute angle,
Described first turns 71 parallel with the first gas branch flow passage 612, and described first, which turns 71 and described second, turns 72
The sharp angle of composition and the first gas branch flow passage 612 are equal with the angle of first gas trunk runner 611, described sharp
Angle angle is 90 ° -90 °/n, the same snakelike outlet and drains the second of runner and turns 72 and be arranged in parallel, and described first turns 71
The sum of the angle of the obtuse angle angle and the acute angle that turn 72 compositions with described second is 180 °, and obtuse angle angle is
180 °-(90 ° -90 °/n), i.e. 90 °+90 °/n, third turn it is 73 parallel with the second gas branch flow passage 612, described
Three, which turn 73, turns the sharp angle that 72 are constituted with described second as 90 ° -90 °/n, and the third turns 73 and turns with described second
The obtuse angle angle that road 72 is constituted is 90 °+90 °/n.
Technical solutions of the utility model are further arranged: k2=0.6~1 mm.
In technical solutions of the utility model, drain outlet and reaction gas outlet 4 are same outlet, the drain outlet
The i.e. described reaction gas outlet 4.
Technical solutions of the utility model are further arranged: in use, reaction gas is from the first air inlet for this bipolar plates
Mouth 31 and the second air inlet 32 enter first gas runner 61 and second gas runner 62, pass through first gas trunk runner 611
Reaction gas is evenly distributed to first gas branch flow passage 612 and second gas affluent-dividing with second gas trunk runner 621
Road 622, under pressure forced convertion reach snakelike outlet and draining runner 7 through diffusion layer, drain gas nitrogen by arranging
Water gas entrance enters, and pushes the liquid water of delay that flow field is discharged by drain outlet.
Technical solutions of the utility model are further arranged: this bipolar plates is hydrogen using Anodic reaction gas, and cathode is anti-
Answering gas is air or oxygen.
Technical solutions of the utility model are further arranged: the bipolar plates of shown Proton Exchange Membrane Fuel Cells can be by graphite material
Material or metal material are made.
" vein shape flow field " described herein refers to imitation vein, using an import, the structure of multiple branch flow passages.
In attached drawing, the interdigitated flow field fuel cell of Active Drainage vein shape when utility model technical solution one is n=6 is double
Pole plate, the interdigitated flow field fuel battery double plates of Active Drainage vein shape when utility model technical solution two is n=3, Fig. 6's
The experiment condition of cell polarization curves comparison diagram is referring to following table.
1 operating parameter of table
| Parameter | Numerical value |
| Operating pressure (Pa) | 101325 |
| Operation temperature (K) | 343 |
| Quality of anode flow (kg/s) | 7×10-6 |
| Anode humidity | 100% |
| Anode discharge pressure (Pa) | 2500 |
| Cathode quality flow (kg/s) | 1.43×10-5, 6.59 × 10-5 |
| Anode humidity | 100% |
| Cathode discharge pressure (Pa) | 1875 |
Although being used more herein: bipolar plates ontology 1, interdigitated flow field 2, local flow field 21, reaction gas inlet 3,
First air inlet 31, the second air inlet 32, reaction gas outlet 4 drain gas access 5, vein shape air inlet runner 6, first gas
Runner 61, first gas trunk runner 611, first gas branch flow passage 612, second gas runner 62, second gas main stream
Road 621, second gas branch flow passage 622, snakelike outlet and draining runner 7, first turns 71, and second turns 72, and third turns
73 equal terms, but it does not exclude the possibility of using other terms.The use of these items is only for more easily describing and
Explain the essence of the utility model；Being construed as any additional limitation is disagreed with the spirit of the present invention
's.
Claims (9)
1. a kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape, including bipolar plates ontology, the bipolar plates sheet
Interdigitated flow field is provided on body, it is characterised in that: the interdigitated flow field is rounded or regular polygon, is with flow field central point
The center of circle, the interdigitated flow field include the local flow field for being divided into n equal portions, n >=2, the local flow field include reaction gas into
Mouth, reaction gas outlet, draining gas access, vein shape air inlet runner and snakelike outlet and draining runner, the reaction gas inlet
It is set to vein shape air inlet runner outer end, the reaction gas outlet is set to snakelike outlet and draining runner inner end, the draining
Gas access is set to snakelike outlet and draining runner outer end.
2. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 1, feature exist
In: the reaction gas inlet includes the first air inlet and the second air inlet, and the vein shape air inlet runner includes first gas stream
Road and second gas runner, first air inlet are set to first gas runner outer end, the second air inlet setting
Be provided between second gas runner outer end, the first gas runner and second gas runner the snakelike outlet and
Drain runner.
3. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 2, feature exist
In: the first gas runner includes first gas trunk runner and a plurality of first gas branch flow passage, the first gas point
Branch flow passage is set on the first gas trunk runner, the first gas branch flow passage and the first gas trunk runner
It is connected, the second gas runner includes second gas trunk runner and a plurality of second gas branch flow passage, second gas
Body branch flow passage is set on the second gas trunk runner, the second gas branch flow passage and the second gas trunk
Runner is connected.
4. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 3, feature exist
In: the first gas branch flow passage and second gas branch flow passage interdigital setting, the first gas affluent-dividing
The angle of road and first gas trunk runner is 90 ° -90 °/n, the second gas branch flow passage and second gas trunk runner
Angle and the first gas branch flow passage it is equal with the angle of first gas trunk runner, the first gas trunk runner
Angle between the second gas trunk runner is 180 °/n.
5. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 2, feature exist
In: the interdigitated flow field includes 2n reaction gas inlet, n first gas runner, n second gas runner and 2n snakelike
Outlet and draining runner.
6. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 1, feature exist
In: the vein shape air inlet runner width is k1, and depth k1, back width is 0.5 k1.
7. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 6, feature exist
In: k1=0.6~1 mm.
8. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 4, feature exist
It include parallel with the first gas trunk runner first turning and described second in: the snakelike outlet and draining runner
The parallel third of gas trunk runner turns and is connected to first and turns second to turn with what third turned, the snakelike outlet and row
Turning sum in water flow passage is 10, and the turning angle is 90 ° -90 °/n or 90 °+90 °/n, and cross section of fluid channel shape is pros
Shape, width of flow path and depth are k2, and back width is 0.5k2, gradient 0.1k2 by k2 decrement along draining runner direction.
9. the interdigitated flow field fuel battery double plates of a kind of Active Drainage vein shape according to claim 8, feature exist
In: k2=0.6~1 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785722.2U CN208955111U (en) | 2018-10-31 | 2018-10-31 | A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785722.2U CN208955111U (en) | 2018-10-31 | 2018-10-31 | A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape |
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|---|---|
| CN208955111U true CN208955111U (en) | 2019-06-07 |
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| CN201821785722.2U Expired - Fee Related CN208955111U (en) | 2018-10-31 | 2018-10-31 | A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301282A (en) * | 2018-10-31 | 2019-02-01 | 温州大学激光与光电智能制造研究院 | A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape |
| CN111370728A (en) * | 2020-03-18 | 2020-07-03 | 清华大学 | Fuel cell polar plate flow field and fuel cell polar plate |
-
2018
- 2018-10-31 CN CN201821785722.2U patent/CN208955111U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301282A (en) * | 2018-10-31 | 2019-02-01 | 温州大学激光与光电智能制造研究院 | A kind of interdigitated flow field fuel battery double plates of Active Drainage vein shape |
| CN111370728A (en) * | 2020-03-18 | 2020-07-03 | 清华大学 | Fuel cell polar plate flow field and fuel cell polar plate |
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