CN205676538U - A kind of SPE electrolytic cell module of combined dual-polar plate flow passage structure and composition thereof - Google Patents
A kind of SPE electrolytic cell module of combined dual-polar plate flow passage structure and composition thereof Download PDFInfo
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- CN205676538U CN205676538U CN201620334848.2U CN201620334848U CN205676538U CN 205676538 U CN205676538 U CN 205676538U CN 201620334848 U CN201620334848 U CN 201620334848U CN 205676538 U CN205676538 U CN 205676538U
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- runner
- fluid channels
- bipolar plate
- compound
- parallel fluid
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Abstract
The utility model discloses the SPE electrolytic cell module of a kind of combined dual-polar plate flow passage structure and composition thereof, bipolar plate runner includes being bent successively from top to bottom the serpentine channel connecting and composing, flowing wherein for fluid by the compound runner no less than five foldings；Often before and after the compound runner of folding, two ends are equipped with the Cylinder Group of the design in point-like matrix structure, it is distributed, compound runner is divided into from top to bottom the parallel fluid channels ridge of N bar parallel fluid channels in staggered mode often rolling on compound runner and being positioned at and be equipped with between the Cylinder Group of two ends, between adjacent parallel fluid channels ridge, be equipped with the openings for connecting adjacent two parallel fluid channels；Meanwhile, compound runner is from top to bottom, and the bar number of its parallel fluid channels successively decreases successively according to the mode of equal difference.The utility model additionally provides the SPE electrolytic cell module being made up of this bipolar plate runner.The utility model improves pure water diffusion and anode bipolar plate deoxygenation ability, not only little along journey pressure drop, flow area big, and membrane electrode operating efficiency is high.
Description
Technical field
The utility model relates to chemical industry and nuclear technology and apparatus field, particularly relates to a kind of combined dual-polar plate runner
The SPE electrolytic cell module of structure and composition thereof.
Background technology
Hydrogen is a kind of eco-friendly energy carrier, has cleaning, pollution-free and reproducible advantage.Natural gas steam
Reformation, water-gas hydrogen manufacturing and preparing hydrogen by reforming methanol and water electrolysis hydrogen producing are all the methods industrializing hydrogen manufacturing at present.Comparatively speaking, water
Electrolytic hydrogen production raw material is water, inexhaustible, and product is also water, reusable edible；Meanwhile, water electrolysis hydrogen producing also has product
Hydrogen purity is high, the advantage of flexible operation.Therefore, the SPE electrolysis mode of water electrolysis especially electrolyzing pure water, not only transformation efficiency
Height, internal resistance are little, and hydrogen is difficult to counter-infiltration, thus have broad application prospects, and the utilization for following Hydrogen Energy has act foot
The effect of weight.
SPE electrolysis goes also to play great effect in tritiated process at tritium-containing liquid waste.Nuclear power station running can produce
Tritium-containing liquid waste, if can not rationally dispose, it will cause serious environmental pollution；Meanwhile, the recovery containing tritium in HTO has very
High economic worth, thus exploitation is efficient, the water of environmental protection goes tritiated technology and equipment to have very important significance.And SPE is electric
Xie Shui removes also to have in tritiated application clear superiority, for example: (1) SPE film has hydrogen isotope effect, T+Permeable membrane ability is remote
Less than H+So that tritium, while producing lean hydrogen tritide gas, is concentrated in liquid phase by SPE electrolysis；(2) SPE film has excellent anti-spoke
According to performance, current existing electrolysis-catalysis exchanged water goes tritiated technique (CECE), hands over SPE electrolysis with hydrogen isotope catalysis
Change technique coupling, have and very high go the tritium factor.
In SPE electrolytic cell, bipolar plate flow field is for being reactant and product offer flow channel, and flow passage structure affects
Flowing in runner for the fluid and the transmission of reactive material, and then have influence on the operating efficiency of electrolytic cell.Common bipolar plate current
There are parallel fluid channels, serpentine flow path and interdigitated runner in road.Parallel fluid channels significant advantage is that fluid stagnation pressure reduces, but with flow field width
Degree increases, and in runner, fluid distrbution is uneven, causes the enrichment of anode bipolar plate oxygen, increases flow loss.Serpentine flow path is vented
Ability is strong, but as flow area increases, fluid-pressure drop significantly increases.Interdigitated runner is also called discontinuous runner, row's band energy
Power is strong, and cell power density is high, but very big by diffusion layer pressure drop, and is susceptible to the situation of short circuit and channel.
In sum, develop efficient bipolar plate flow field, promote SPE electrolytic cell module operating efficiency, skill is electrolysed for SPE
The application such as the development of art and water hydrogen all has vital meaning.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provides a kind of combined dual-polar plate flow passage structure and structure thereof
The SPE electrolytic cell module becoming, the problem that can effectively solve anode bipolar plate deoxygenation, simultaneously little along journey pressure drop, flow area is big, film
Electrode operating efficiency is high.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of combined dual-polar plate flow passage structure, including bending is even successively from top to bottom by the compound runner no less than five foldings
Connect composition, form the serpentine channel of fluid flowing；Often before and after the compound runner of folding, two ends are equipped with the design in point-like matrix structure
Cylinder Group, and, be distributed in staggered mode often rolling over to be equipped with in the middle part of compound runner and compound runner divided from top to bottom
Become the parallel fluid channels ridge of N bar parallel fluid channels, be equipped with between 4≤N, and adjacent parallel fluid channels ridge and put down for connecting adjacent two
Row runner is so that balance is combined the openings of the fluid pressure in runner and flow velocity；Meanwhile, described compound runner from toward
Under, the bar number of its parallel fluid channels successively decreases successively according to the mode of equal difference.
As preferably, the width of described parallel fluid channels ridge is 1.5～2.0mm, described compound flow channel depth is 1.2～
2.0mm。
Further, the bottom in other compound runners in the utility model, in addition to bottommost one folding is combined runner
Parallel fluid channels, its width is all wide than other parallel fluid channels by 50%；Meanwhile, all parallel fluid channels in the compound runner of bottommost
Width is all identical with the bottom parallel fluid channels width in other compound runners.
Yet further, in the utility model, often the compound runner of folding is equipped with smooth for the end making fluid turn to
Transition circle chamfering.
Further, often folding is combined in runner and is equipped with, for the end making fluid turn to, the rounded corner that smoothly transits.
Further, the Cylinder Group in each point-like matrix structure is that the staggered mode in 60 ° of angles is distributed, body diameter
Preferably 2mm.
Based on above-mentioned flow passage structure, the utility model additionally provides the SPE electrolytic cell module being made up of above-mentioned flow passage structure,
Including be sequentially overlapped anode bipolar plate together, anode diffusion layer, anode catalyst layer, PEM, cathode catalysis layer, the moon
Pole diffusion layer and cathode bipolar plate, wherein, bipolar plates is carved with bipolar plate runner；One of them bipolar plate runner described is arranged on
On the surface of anode bipolar plate jointed anode diffusion layer, contact with anode diffusion layer, and the top and in this bipolar plate runner
The end of the compound runner of lower section is respectively equipped with pure water and is passed through mouth and the outlet of water oxygen；It is double that another bipolar plate runner is arranged on negative electrode
Pole plate connects on the surface of cathode diffusion layer, contacts with cathode diffusion layer, and the compound runner of bottom in this bipolar plate runner
End be provided with hydrogen outlet.
Further, it is additionally provided with anode seal circle between described anode bipolar plate and anode diffusion layer.
Yet further, it is additionally provided with negative electrode sealing ring between described cathode bipolar plate and cathode diffusion layer.
Compared with prior art, the utility model has the advantages that
(1) the utility model is provided with the serpentine channel being made up of the compound runner of many foldings, and set-point in compound runner
The Cylinder Group of shape matrix structure, thus improve liquid phase carrier gas ability, the problem solving exhaust problem.
(2) in the utility model point-like matrix, Cylinder Group is that the staggered mode in 60 ° of angles is distributed, and so can increase pipes' analysis
Long-pending, balance flowpath pressure and velocity flow profile, add the wettability of membrane electrode.
(3) the bar number of the parallel fluid channels that the utility model is combined in runner uses equal difference to successively decrease design, journey flow velocity after runner
Increasing the ability that improve anode bipolar plate carrier band oxygen, after improving, stroke pressure advantageously ensures that liquid phase diffusivity simultaneously, carries
Rise membrane electrode operating efficiency.And often folding is combined the parallel fluid channels of runner bottom and bottom is combined all concurrent flows of runner
Other parallel fluid channels of the width ratio in road are wide by 50%, and flow field velocity distribution can be made more uniform.
(4) the utility model end for making fluid turn in often rolling over compound runner is equipped with to smoothly transit to justify and
Angle, can reduce fluid further along journey pressure drop, advantageously in runner respectively to evenly distributing fluid, reduces flow field dead band.
(5) the SPE electrolytic cell module of the utility model design is not only electrolysed hydrogen purity height (>=99.999%), Er Qieke
Reduce ohmic loss with effective, there is the advantage that required voltage is little, current density big, operational heat amount is few, electrolytic efficiency is high.
(6) the utility model greatly improves pure water diffusion and anode bipolar plate deoxygenation ability, and it is not only along journey pressure
Drop little, flow area big, and membrane electrode operating efficiency is high.
Brief description
Fig. 1 is the decomposing schematic representation of SPE electrolytic cell module described in the utility model.
Fig. 2 is the structural representation of bipolar plate runner described in the utility model.
Fig. 3 is the pressure distribution schematic diagram of serpentine flow path.
Fig. 4 is the velocity flow profile schematic diagram of serpentine flow path.
Fig. 5 is the pressure distribution schematic diagram of parallel fluid channels.
Fig. 6 is the velocity flow profile schematic diagram of parallel fluid channels.
Fig. 7 is the pressure distribution schematic diagram of the utility model combined dual-polar plate runner.
Fig. 8 is the velocity flow profile schematic diagram of the utility model combined dual-polar plate runner.
Wherein, reference is corresponding entitled:
1-Cylinder Group, 2-parallel fluid channels ridge, 3-parallel fluid channels, 4-openings, 5-smoothly transits rounded corner, and 6-anode is double
Pole plate, 7-anode seal circle, 8-anode diffusion layer, 9-anode catalyst layer, 10-PEM, 11-cathode catalysis layer, 12-is cloudy
Pole diffusion layer, 13-negative electrode sealing ring, 14-cathode bipolar plate.
Detailed description of the invention
The utility model is described in further detail with embodiment in explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes
But it is not limited only to following example.
As it is shown in figure 1, the utility model provides a kind of novel SPE electrolytic cell module, it includes being sequentially overlapped assembling
Anode bipolar plate the 6th, anode diffusion layer the 8th, PEM the 10th, cathode catalysis layer the 11st, cathode diffusion layer 12 and cathode bipolar plate
14.It is provided with bipolar plate runner in described anode bipolar plate 6 and cathode bipolar plate 14, wherein, stream in anode bipolar plate 6
It is respectively arranged at two ends with a pure water before and after road and is passed through mouth and the outlet of water oxygen, and the runner on cathode bipolar plate 14 is provided only with one
Hydrogen outlet.Diffusion layer, Catalytic Layer and PEM constituting membrane electrode assembly, be the core component of SPE electrolytic cell module.
Additionally, the utility model is also respectively provided with anode seal circle 7 and negative electrode sealing ring 13, wherein, anode seal circle 7
It is positioned between anode bipolar plate 6 and anode diffusion layer 8；Negative electrode sealing ring 13 be positioned at cathode diffusion layer 12 and cathode bipolar plate 14 it
Between.So can ensure the sealing of SPE electrolytic cell module.In the present embodiment, the preferred high resiliency of sealing ring, corrosion resistant silicon rubber
Sealing ring, thickness preferably 0.5～1mm, sealing ring dashpot can be set in bipolar plates simultaneously, agree with sealing ring.
In above-mentioned parts, described anode bipolar plate 6 and cathode bipolar plate 14 all preferably employ titanium alloy or other corrosion resistants
The stainless steel that erosion alloy carries out surface treatment is made.Anode diffusion layer 8 uses surface to carry out plating the stainless (steel) wire that tantalum is processed, negative electrode
The preferred sintered porous titanium of diffusion layer 12, it is ensured that permeability and durability.Described anode catalyst layer 9 uses IrO2Catalyst, negative electrode
Catalytic Layer 11 uses the black catalyst of Pt, and negative electrode and anode catalyst layer are all respectively coated with in PEM 10 liang through spraying coating process
Side, this PEM 10 is as transmission H+Medium, use perfluoro sulfonic acid membrane, the preferred E.I.Du Pont Company of the present embodiment produce
Nafion 111 film.
And as another main improvement of the present utility model, as in figure 2 it is shown, in the present embodiment, described bipolar plate current
Road includes being bent successively from top to bottom by the compound runner no less than five foldings (the present embodiment uses five foldings) connecting and composing, for flowing
The serpentine channel that body (pure water) flows wherein.Often before and after the compound runner (degree of depth is 1.2～2.0mm) of folding two ends be equipped with in
(Cylinder Group in matrix is that the staggered mode in 60 ° of angles is distributed to the Cylinder Group 1 of point-like matrix structure design, body diameter
2mm), and, be distributed in staggered mode and will be multiple often rolling on compound runner and being positioned to be equipped with between the Cylinder Group of two ends
Road, interflow is divided into the parallel fluid channels ridge 2 (width is 1.5～2.0mm) of N bar parallel fluid channels 3 from top to bottom, and meanwhile, adjacent is parallel
It is equipped with between runner ridge for connecting adjacent two parallel fluid channels so that the fluid pressure in the compound runner of balance and flow velocity
Openings 4.
Additionally, described compound runner is from top to bottom, the bar number of its parallel fluid channels successively decreases successively according to the mode of equal difference, this
In embodiment, the compound runner of the top has 8 parallel fluid channels, and compound runner equal difference successively down is successively decreased a concurrent flow
The compound runner in road, i.e. bottom has 4 parallel fluid channels.Further, in anode bipolar plate runner and cathode bipolar plate runner, remove
Bottom parallel fluid channels in other compound runners that bottommost one folding is combined outside runner, its width is all wide than other parallel fluid channels
50%；Meanwhile, the width of all parallel fluid channels in the compound runner of bottommost is all put down with the bottom in other compound runners
Row width of flow path is identical.
Further, since have employed the design structure of serpentine channel, when fluid flows in serpentine channel, can relate to turning to
Problem, therefore, for reduction fluid along journey pressure drop, is often equipped with for the end making fluid turn in the compound runner of folding and smoothly transits
Rounded corner 5.
The process that the utility model SPE electrolytic cell module electrolyzing pure water prepares hydrogen is as follows:
Pure water passes through anode diffusion layer through the runner in anode bipolar plate and contacts generation oxygen with anode catalyst layer.Oxygen warp
Anode diffusion layer returns in the runner in anode bipolar plate, draws from the outlet of water oxygen together with the water not being electrolysed.Proton is then worn
Cross PEM, and be reduced to hydrogen under the effect of cathode catalysis layer, then after the runner enrichment on cathode bipolar plate
Draw at hydrogen outlet.The water oxygen two-phase mixture drawn can carry out gas-liquid separation (such as utilizing knockout drum), then will
Isolated pure water is pumped in pure water water tank, in order to follow-up recycling.
Fig. 3～8 compared for pressure in serpentine flow path, parallel fluid channels and combined dual-polar plate runner described in the utility model
Distribution with flow velocity.Wherein Fig. 3, Fig. 5, Fig. 7 are respectively the pressure distribution in three of the above runner；Fig. 4, Fig. 6, Fig. 8 are respectively
Velocity flow profile in three kinds of runners.Working media all uses normal temperature pure water, and channel size specification is consistent, takes identical water process
Amount.Result of calculation shows that in combined dual-polar plate flow field described in the utility model, fluid is little along journey pressure drop, and flow area is big, stream
Speed is more evenly distributed, and can be obviously improved the operating efficiency of SPE electrolytic cell module.
Above-described embodiment is only one of preferred embodiment of the present utility model, should not be taken to limit of the present utility model
Protection domain, all in body design thought of the present utility model and the change having no essential meaning made mentally or polishing,
It is solved the technical problem that still consistent with the utility model, all should be included in protection domain of the present utility model it
In.
Claims (9)
1. a combined dual-polar plate flow passage structure, it is characterised in that include by the compound runner no less than five foldings from top to bottom
Bending successively connects and composes, and forms the serpentine channel of fluid flowing；Often before and after the compound runner of folding, two ends are equipped with in point-like square
The Cylinder Group (1) of battle array structure design, and, it is distributed in staggered mode often rolling over to be equipped with in the middle part of compound runner and will be combined
Runner is divided into the parallel fluid channels ridge (2) of N bar parallel fluid channels (3) from top to bottom, is all provided with between 4≤N, and adjacent parallel fluid channels ridge
Have for connecting adjacent two parallel fluid channels to balance the openings (4) of the fluid pressure being combined in runner and flow velocity；With
When, from top to bottom, the bar number of its parallel fluid channels successively decreases successively described compound runner according to the mode of equal difference.
2. a kind of combined dual-polar plate flow passage structure according to claim 1, it is characterised in that described parallel fluid channels ridge
(2) width is 1.5～2.0mm, and described compound flow channel depth is 1.2～2.0mm.
3. a kind of combined dual-polar plate flow passage structure according to claim 2, it is characterised in that except bottommost one folding is combined
The bottom parallel fluid channels in other compound runners outside runner, its width is all wide than other parallel fluid channels by 50%.
4. a kind of combined dual-polar plate flow passage structure according to claim 3, it is characterised in that the compound runner of bottommost
In the width of all parallel fluid channels all identical with the bottom parallel fluid channels width in other compound runners.
5. a kind of combined dual-polar plate flow passage structure according to claim 3, it is characterised in that often use in the compound runner of folding
It is equipped with the rounded corner that smoothly transits (5) in the end making fluid turn to.
6. a kind of combined dual-polar plate flow passage structure according to any one of Claims 1 to 5, it is characterised in that each point
Cylinder Group (1) in the shape matrix structure mode staggered in 60 ° of angles is distributed.
7. a SPE electrolytic cell module, it is characterised in that include the bipolar plate current described in two any one of claim 1～6
Road, and it is sequentially overlapped the anode bipolar plate (6) of assembling, anode diffusion layer (8), anode catalyst layer (9), PEM
(10), cathode catalysis layer (11), cathode diffusion layer (12) and cathode bipolar plate (14)；One of them bipolar plate runner described is arranged
On the surface of anode bipolar plate (6) jointed anode diffusion layer (8), contact with anode diffusion layer, and in this bipolar plate runner
The end of the compound runner of top and bottom is respectively equipped with pure water and is passed through mouth and the outlet of water oxygen；Another bipolar plate runner is arranged
On the surface that cathode bipolar plate (14) connects cathode diffusion layer (12), contact with cathode diffusion layer, and in this bipolar plate runner
The end of the compound runner of bottom is provided with hydrogen outlet.
8. a kind of SPE electrolytic cell module according to claim 7, it is characterised in that described anode bipolar plate (6) and anode
It is additionally provided with anode seal circle (7) between diffusion layer (8).
9. a kind of SPE electrolytic cell module according to claim 7 or 8, it is characterised in that described cathode bipolar plate (14) with
It is additionally provided with negative electrode sealing ring (13) between cathode diffusion layer (12).
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| CN201620334848.2U CN205676538U (en) | 2016-04-20 | 2016-04-20 | A kind of SPE electrolytic cell module of combined dual-polar plate flow passage structure and composition thereof |
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| CN201620334848.2U CN205676538U (en) | 2016-04-20 | 2016-04-20 | A kind of SPE electrolytic cell module of combined dual-polar plate flow passage structure and composition thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831411A (en) * | 2019-11-18 | 2020-02-21 | 深圳市研派科技有限公司 | Liquid cooling device with composite runner |
| CN114318386A (en) * | 2022-01-20 | 2022-04-12 | 氢鸿(杭州)科技有限公司 | Proton exchange membrane water electrolyzer, system and method |
| CN114381752A (en) * | 2022-03-01 | 2022-04-22 | 北京中电绿波科技有限公司 | Electrolytic cell with high-efficiency turbulent flow multi-connecting-hole turbulent flow element |
| CN114438534A (en) * | 2022-01-05 | 2022-05-06 | 飞马牧场(上海)信息咨询服务有限公司 | High-purity gas preparation device and preparation method |
| WO2023104266A1 (en) * | 2021-12-07 | 2023-06-15 | Stiesdal Hydrogen A/S | Electrolyser with a stack of welded four-layer modules |
-
2016
- 2016-04-20 CN CN201620334848.2U patent/CN205676538U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831411A (en) * | 2019-11-18 | 2020-02-21 | 深圳市研派科技有限公司 | Liquid cooling device with composite runner |
| WO2023104266A1 (en) * | 2021-12-07 | 2023-06-15 | Stiesdal Hydrogen A/S | Electrolyser with a stack of welded four-layer modules |
| CN114438534A (en) * | 2022-01-05 | 2022-05-06 | 飞马牧场(上海)信息咨询服务有限公司 | High-purity gas preparation device and preparation method |
| CN114318386A (en) * | 2022-01-20 | 2022-04-12 | 氢鸿(杭州)科技有限公司 | Proton exchange membrane water electrolyzer, system and method |
| CN114381752A (en) * | 2022-03-01 | 2022-04-22 | 北京中电绿波科技有限公司 | Electrolytic cell with high-efficiency turbulent flow multi-connecting-hole turbulent flow element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161109 Termination date: 20190420 |