CN208489292U - A kind of fuel cell pile hydrogen circulation device - Google Patents
A kind of fuel cell pile hydrogen circulation device Download PDFInfo
- Publication number
- CN208489292U CN208489292U CN201820922267.XU CN201820922267U CN208489292U CN 208489292 U CN208489292 U CN 208489292U CN 201820922267 U CN201820922267 U CN 201820922267U CN 208489292 U CN208489292 U CN 208489292U
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- Prior art keywords
- hydrogen
- pile
- hydrogen circulation
- fuel cell
- hydrogen gas
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 239000001257 hydrogen Substances 0.000 title claims abstract description 104
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 104
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims description 11
- 206010013781 dry mouth Diseases 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000003902 lesion Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000010259 detection of temperature stimulus Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- -1 oxonium ion Chemical class 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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 utility model relates to field of fuel cell technology, specifically disclose a kind of fuel cell pile hydrogen circulation device, pile is equipped with anode flow channel entrance and anode flow channel exports, input terminal and the anode flow channel of water collector of being humidified is exported and is connected to by hydrogen circulation line, the output end of water collector of being humidified is connected to the input terminal of hydrogen gas circulating pump by hydrogen circulation line, and the output end of hydrogen gas circulating pump is connected to anode flow channel entrance by hydrogen circulation line.The utility model can adjust humidity according to pile operating condition, it will not allow water slug runner that pile will not be allowed to enter dry mouth in high power in changed power, lesion electrode, power is caused to decline, hydrogen gas circulating system can heat air inlet when cold-starting, accelerate cold start speed, solving fuel cell water and being unevenly distributed can make pile locally gradually dry out, and even make pile Problem of Failure.
Description
Technical field
The utility model fuel cell field, specifically a kind of fuel cell pile hydrogen circulation device.
Background technique
Proton exchange membrane hydrogen fuel cell (PEMFC) is fuel cell one kind, when hydrogen fuel cell and external circuit are formed back
Lu Shi, for anode-side hydrogen under catalyst (pt) effect, hydrogen is converted to Hydrogen Proton, and proton hydrate is formed in conjunction with water, yin
The oxygen (oxygen in air) of pole side forms oxonium ion under catalyst (pt) effect, under the effect of anode and cathode potential difference, hydration
Hydrogen Proton orientation migrates to cathode from anode, and water is generated in conjunction with the oxonium ion that cathode is formed, meanwhile, part water is in osmotic pressure
Effect is lower to enter anode flow channel, and external circuit forms electric current.Chemical energy to contain reaction gas is converted directly into electric energy.
The basic unit of fuel cell pile is monocell, and multiple cells in series form pile, and monocell is by film electricity
Pole, diffusion layer, deflector are constituted, and hydrogen side is anode, and oxygen side is cathode.Membrane electrode is made of proton exchange membrane and painting electrode.It is single
The effective voltage of battery is very low, open-circuit voltage 1.229V, rated operational voltage range 0.55-0.75V.Usually monocell is set
It is calculated as the biggish laminate structure of area, the electric current that area is supplied to more greatly external circuit is also bigger；Many cells in series to
Sufficiently high voltage is obtained, the partition between the anode of monocell and the cathode of another monocell is referred to as bipolar plates.It is bipolar
Have the cushion rubber to seal between plate and membrane electrode, it is this by multilayer single battery group at laminate structure be pile.
As fuel cell enters practical stage, for fuel battery stability, the service life, low cost research increasingly
Deeply.Wherein, service life and stability are the important indicators of estimating fuel battery maturity, and hydrogen is empty or hydrogen-oxygen fuel cell also not example
Outside, there are many factor for influencing stable fuel cell operation, and the water management of membrane electrode is one of key factor.
The purpose of water management is to maintain the distributing homogeneity that is lauched of pile different capacity, and hydrogen inlet water is more to make pile
Ponding is exported, pile water blockoff is even made to fail.The water of hydrogen inlet is few, can make to damage membrane electrode into dry mouth, make pile
It is unable to steady operation.In a fuel cell, water is that cathode generates, and part water can enter anode flow channel under the action of osmotic pressure,
Discharge pile is recycled with hydrogen.General hydrogen gas circulating system filters out most of liquid water, only sends seldom vapor back to
Hydrogen inlet, and as humidification variation of the variation of ambient temperature recycle hydrogen to hydrogen inlet is obvious non-adjustable.
For the deficiency of existing fuel cell, it is necessary to develop a kind of low consumable, highly reliable Fuel Cell Humidity control
Mode processed makes the device of the continual and steady efficient operation of fuel cell.
Utility model content
The purpose of the utility model is to provide a kind of fuel cell pile hydrogen circulation devices, improve electricity when system designs
Pile power generating efficiency can reduce the flow-rate ratio of reaction gas as far as possible, and many important environmental requirement fuel availabilitys having are greater than 99%,
Air (oxygen) is reduced for hydrogen air (or oxygen) fuel cell and humidifies degree, improves hydrogen fuel hydrogen utilization ratio, improves electricity
The stability in pond and service life etc. are designed exploitation.
One is provided to solve above-mentioned hydrogen circulation, water blockoff and the uneven technical problem of pile water distribution, the utility model
Kind fuel cell pile hydrogen circulation device, including pile, hydrogen gas valve, hydrogen circulation line, hydrogen gas circulating pump, temperature pass
Sensor, can be humidified water collector and drain valve；The pile is equipped with anode flow channel entrance and anode flow channel exports, the collection that is humidified
The input terminal of hydrophone and the anode flow channel are exported to be connected to by hydrogen circulation line, the output end of the water collector that is humidified and
The input terminal of the hydrogen gas circulating pump is connected to by hydrogen circulation line, the output end of the hydrogen gas circulating pump and the anode stream
Road entrance is connected to by hydrogen circulation line, and the temperature sensor is located at the hydrogen gas circulating pump output end and the anode stream
On hydrogen circulation line between road entrance, the drain valve is connected to by drainage pipeline with the water collector that is humidified, described
Hydrogen gas valve is followed by the hydrogen that air inlet pipeline is connected between the temperature sensor and the hydrogen gas circulating pump output end
Endless tube road.
Further, heating tape is equipped in the hydrogen circulation line.
Further, the hydrogen gas valve and drain valve are solenoid valve.
Further, described be humidified in water collector is equipped with heater.
The beneficial effects of the utility model are: the adjustable humidification cycle device of the utility model fuel cell pile hydrogen, leads to
It crosses pile operating condition and adjusts humidity, will not allow water slug runner that pile will not be allowed to enter in high power in low-power in this way
Dry mouth, lesion electrode cause power to decline, and liquid water can be effectively prevented in conventional operation and enters pile, to draw
The liquid water embolism risen, influences to generate electricity, and hydrogen gas circulating system can heat air inlet when cold-starting, accelerates cold start-up speed
Degree.
Detailed description of the invention
It, below will be to institute in embodiment or description of the prior art in order to illustrate more clearly of the technical solution of the utility model
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the utility model
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of fuel cell pile hydrogen circulation device.
In figure: 1, pile；2, hydrogen gas valve；3, hydrogen circulation line；4, hydrogen gas circulating pump；5, temperature sensor；6,
Can be humidified water collector；7, drain valve；8, anode flow channel entrance；9, anode flow channel exports；10, air inlet pipeline；11, discharge pipe line.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
In the utility model specific embodiment, as shown in Figure 1, specifically disclosing a kind of fuel cell pile hydrogen circulation
Device, including pile 1, hydrogen gas valve 2, hydrogen circulation line 3, hydrogen gas circulating pump 4, temperature sensor 5, can be humidified water collector
6 and drain valve 7；Anode flow channel entrance 8 and anode flow channel outlet 9, the defeated of water collector 6 that be humidified are equipped in the pile 1
Enter end with the anode flow channel outlet 9 pass through hydrogen circulation line 3 be connected to, the output end of the water collector 6 that is humidified with it is described
The input terminal of hydrogen gas circulating pump 4 is connected to by hydrogen circulation line 3, the output end and the anode stream of the hydrogen gas circulating pump 4
Road entrance 8 is connected to by hydrogen circulation line 3, and the temperature sensor 5 is located at 4 output end of hydrogen gas circulating pump and the sun
On hydrogen circulation line 3 between pole flow channel entry point 8, the drain valve 7 passes through drainage pipeline 11 and the water collector 6 that is humidified
Connection, the hydrogen gas valve 2 is connected to the temperature sensor 5 by air inlet pipeline 10 and the hydrogen gas circulating pump 4 exports
On hydrogen circulation line 3 between end, heating tape is equipped in hydrogen circulation line 3, hydrogen gas valve 2 and drain valve 7 are electromagnetism
Valve can be humidified in water collector 6 and be equipped with heater.
It opens hydrogen gas valve 2 and opens simultaneously drain valve 7, empty the air in pile 1, start pile 1, pile 1 starts
Afterwards, hydrogen can humidification cycle system starts, primer liner heating tape heats hydrogen circulation line 3, opens hydrogen
Intake valve 2 makes hydrogen enter pile anode flow channel, pile from the anode flow channel entrance 8 of pile 1 after the detection of temperature sensor 5
Liquid water in anode flow channel with 9 discharge of anode flow channel outlet there is the wet hydrogen of certain humidity to be discharged from anode flow channel outlet 9,
The wet hydrogen and liquid water of discharge are into the water collector 6 that can be humidified, then by the water collector 6 that can be humidified by wet hydrogen and aqueous water
From the liquid water after separation can be humidified in water collector 6, and hydrogen circulation line 3 of the wet hydrogen after separation by heating enters
Hydrogen gas circulating pump 4, then exported by hydrogen gas circulating pump 4, wet hydrogen and hydrogen gas valve 2 are discharged into the hydrogen in hydrogen circulation line 3
Gas mixing, mixed hydrogen enter 1 anode stream of pile from the anode flow channel entrance 8 of pile 1 after the detection of temperature sensor 5
Road；
When temperature sensor 5 detects that the hydrogen in hydrogen circulation line 3 is lower than 30 DEG C into the temperature before heap or pile 1 is defeated
Power increases out, and when hydrogen gas humidity reduces, starting, which can be humidified, to collect water heater and add to the liquid water that can be humidified in water collector 6
At vapor, hydrogen circulation pipe 3 tunnel of the vapor mixing wet hydrogen by heating enters hydrogen gas circulating pump 4, then passes through hydrogen for thermal change
Gas circulating pump 4 exports, and wet hydrogen and hydrogen gas valve 2 are discharged into the mixing of the hydrogen in hydrogen circulation line 3, mixed hydrogen warp
Enter 1 anode flow channel of pile from the anode flow channel entrance 8 of pile 1 after the detection of excess temperature sensor 5；
When temperature sensor 5 detects that the hydrogen in hydrogen circulation line 3 is higher than 50 DEG C into the temperature before heap or pile 1 is defeated
Power reduces out, and when hydrogen gas humidity increases, closing, which can be humidified, collects water heater, opens drain valve 7, can be humidified water collector
Excessive water and impurity gas are by the discharge hydrogen gas circulating system of discharge pipe line 11 in 6, the isolated wet hydrogen warp of the water collector 6 that can be humidified
The hydrogen circulation line 3 for crossing heating enters hydrogen gas circulating pump 4, then is exported by hydrogen gas circulating pump 4, wet hydrogen and hydrogen gas valve
2 are discharged into the hydrogen mixing in hydrogen circulation line 3, and mixed hydrogen is after the detection of temperature sensor 5 from the anode of pile 1
Flow channel entry point 8 enters 1 anode flow channel of pile.
The circulation humidity of hydrogen realizes that the hydrogen temperature of circulation is by adjusting heating by adjusting the hydrogen temperature of circulation
The power of band realizes, when the temperature in hydrogen gas circulating system increases lower than 30 DEG C of pipelines or pile output power, hydrogen gas
When humidity reduces, heating tape power reduces, humidity of the raising hydrogen into heap；When the temperature in hydrogen gas circulating system be higher than 50 DEG C or
Pile output power reduces, and when hydrogen gas humidity increases, pipeline heating band power increases, and reduction hydrogen, can into the humidity of heap
To reach the adjustable humidity cycle of hydrogen, hydrogen is humidified, maintains the balance of water in pile, plays stable pile work
Purpose, hydrogen gas circulating system can heat air inlet when cold-starting, accelerate cold start speed.
With the variation of pile output power, to adjust the rate of recovery and hydrogen gas circulating pump flow of recycle hydrogen, the hydrogen of consumption
Tolerance is directly proportional with pile output power, and the bigger hydrogen into pile of pile output power is more, and the yield of hydrogen is just
It is bigger, it is determined according to pile output power, it is general to recycle the 25%-40% that flow is hydrogen gas consumption, many important rings having
Border requires fuel availability to be greater than 99%, is that system designs using fuel cell pile hydrogen circulating technology in this case
Optimal selection.
Hydrogen humidity in hydrogen gas circulating system is adjusted by adjusting the hydrogen temperature in circulation line, hydrogen circulation
Hydrogen temperature in pipeline is realized by adjusting the power of pipeline heating tape, be can achieve hydrogen automatic adjustable humidity and is returned
It receives, the hydrogen in hydrogen circulation line is humidified, maintain the balance of water in pile, play the purpose of stable pile work.
Above disclosed is only a kind of preferred embodiment of the utility model, cannot limit this reality certainly with this
With novel interest field, therefore equivalent variations made according to the claim of the utility model, still belong to the utility model and is covered
Range.
Claims (4)
1. a kind of fuel cell pile hydrogen circulation device, which is characterized in that including pile (1), hydrogen gas valve (2), hydrogen
Circulation line (3), hydrogen gas circulating pump (4), temperature sensor (5), can be humidified water collector (6) and drain valve (7)；The pile
(1) anode flow channel entrance (8) and anode flow channel outlet (9), the input terminal and the sun of the water collector that is humidified (6) are equipped in
Pole runner exit (9) is connected to by hydrogen circulation line (3), and the output end of the water collector that is humidified (6) is followed with the hydrogen
The input terminal that ring pumps (4) is connected to by hydrogen circulation line (3), the output end and the anode stream of the hydrogen gas circulating pump (4)
Road entrance (8) is connected to by hydrogen circulation line (3), and the temperature sensor (5) is located at the hydrogen gas circulating pump (4) output end
On hydrogen circulation line (3) between the anode flow channel entrance (8), the drain valve (7) by drainage pipeline (11) with
The water collector that is humidified (6) connection, the hydrogen gas valve (2) are connected to the temperature sensor by air inlet pipeline (10)
(5) on the hydrogen circulation line (3) between the hydrogen gas circulating pump (4) output end.
2. a kind of fuel cell pile hydrogen circulation device according to claim 1, it is characterised in that: the hydrogen circulation
Heating tape is equipped in pipeline (3).
3. a kind of fuel cell pile hydrogen circulation device according to claim 1, it is characterised in that: the hydrogen gas
Valve (2) and drain valve (7) are solenoid valve.
4. a kind of fuel cell pile hydrogen circulation device according to claim 1, it is characterised in that: the collection that is humidified
Heater is equipped in hydrophone (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820922267.XU CN208489292U (en) | 2018-06-14 | 2018-06-14 | A kind of fuel cell pile hydrogen circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820922267.XU CN208489292U (en) | 2018-06-14 | 2018-06-14 | A kind of fuel cell pile hydrogen circulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489292U true CN208489292U (en) | 2019-02-12 |
Family
ID=65251611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820922267.XU Active CN208489292U (en) | 2018-06-14 | 2018-06-14 | A kind of fuel cell pile hydrogen circulation device |
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| Country | Link |
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| CN (1) | CN208489292U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111834653A (en) * | 2020-06-05 | 2020-10-27 | 湖北德普电气股份有限公司 | Hydrogen circulating device and method for fuel cell stack |
| CN113285087A (en) * | 2020-02-19 | 2021-08-20 | 北京亿华通科技股份有限公司 | Heat radiation system for fuel cell |
| CN113903957A (en) * | 2021-09-29 | 2022-01-07 | 山东国创燃料电池技术创新中心有限公司 | Pile hydrogen circulation simulation device and simulation method thereof |
-
2018
- 2018-06-14 CN CN201820922267.XU patent/CN208489292U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285087A (en) * | 2020-02-19 | 2021-08-20 | 北京亿华通科技股份有限公司 | Heat radiation system for fuel cell |
| CN111834653A (en) * | 2020-06-05 | 2020-10-27 | 湖北德普电气股份有限公司 | Hydrogen circulating device and method for fuel cell stack |
| CN113903957A (en) * | 2021-09-29 | 2022-01-07 | 山东国创燃料电池技术创新中心有限公司 | Pile hydrogen circulation simulation device and simulation method thereof |
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| GR01 | Patent grant |