CN100502122C - Method for processing frostbite prevention and quick startup of hydrogen stack - Google Patents
Method for processing frostbite prevention and quick startup of hydrogen stack Download PDFInfo
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- CN100502122C CN100502122C CNB2007100119519A CN200710011951A CN100502122C CN 100502122 C CN100502122 C CN 100502122C CN B2007100119519 A CNB2007100119519 A CN B2007100119519A CN 200710011951 A CN200710011951 A CN 200710011951A CN 100502122 C CN100502122 C CN 100502122C
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- hydrogen
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 135
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 135
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title abstract description 11
- 208000001034 Frostbite Diseases 0.000 title abstract 2
- 230000002265 prevention Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 239000007789 gas Substances 0.000 claims abstract description 56
- 239000007800 oxidant agent Substances 0.000 claims abstract description 16
- 230000001590 oxidative effect Effects 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000003672 processing method Methods 0.000 claims abstract description 3
- 238000012546 transfer Methods 0.000 claims description 28
- 230000002528 anti-freeze Effects 0.000 claims description 13
- 150000002431 hydrogen Chemical class 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000011261 inert gas Substances 0.000 claims description 9
- 238000010926 purge Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 241000628997 Flos Species 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000002000 scavenging effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 3
- 239000002737 fuel gas Substances 0.000 abstract 2
- 238000011017 operating method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000007710 freezing Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 239000012528 membrane Substances 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 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 invention relates to a processing method of preventing frostbite and restarting of hydrogen electric pile, whose characteristic lies in the treating processes includes: When the electric pile turns off, the unsaturated fuel gas or the nitrogen, through the circle boast to clean the dissociate water; drying the MEA film module to keep the water content below the stipulated temperature which does not ice up; then the recycle gas through a wet exchanger to dry and the dried gas is continue used in the dry pile step; when restarting the electric pile, the recycle gas must heats then through the pile to elevate the temperature, then heats the fuel gas and the oxidant of the gas source, through the weting of the wet exchanger enters to the calefactive pile, enhances the wet step of the film module in the pile, starts the power output of the pile. Enters the operating procedure control of the pile after starting the pile power output.
Description
Technical field
The present invention relates generally to the preventing freeze in winter of hydrogen Proton Exchange Membrane Fuel Cells and starts fast.
Background technology
Antifreeze and quick startup for the subfreezing hydrogen pem fuel cell stack of ambient temperature has multiple heating and moistening technical scheme.The present invention only provided the antifreeze of fuel channel, oxidant channel and start in the technical method of intensification humidification two aspects, the problem of cooling system is not then considered.For the hydrogen Proton Exchange Membrane Fuel Cells, the present invention abbreviates hydrogen battery as; For the hydrogen pem fuel cell stack, the present invention abbreviates hydrogen electric stack as.Combine water for abbreviating as with membrane-bound water on the exchange membrane, other water then is called for short free water in the hydrogen electric stack.
In environment below freezing, there is the problem of two aspects in the operation of hydrogen electric stack: one is the shutdown technology of hydrogen electric stack when shutting down, and another is intensification and humidifying technology in the quick startup of hydrogen electric stack.
Antifreeze for hydrogen electric stack, normally used technology has a lot, for example: 1. in conjunction with the heating means of insulation, be higher than freezing point by the temperature of keeping hydrogen electric stack and reach antifreeze purpose, this technology expends a large amount of energy, deviates from mutually with the hydrogen electric stack exploitation original idea of energy savings; 2. gas purging, blow out the aqueous water in the hydrogen electric stack, reduce the content that remains in the water that can freeze in the hydrogen electric stack, but on the film in conjunction with water content than higher, in temperature environment below freezing, the film of hydrogen electric stack still freezes easily, cause the damage of film, and difficulty takes place in the humidification water water source that causes being used for next time starting needs, preserves water though have the people to use to freeze, fail on the controlling diaphragm in conjunction with water; 3. use recyclegas to the hydrogen electric stack heating or to the recyclegas heating, therefore evaporates moisture on the film of hydrogen electric stack, the water in the gas is isolated in lower the temperature outside hydrogen electric stack again condensation or freeze, but shuts down when temperature is higher than freezing point by day, when night, temperature was low, just can not finely move; 4. on film, use and membrane-bound antifreezing component,, also have very big technical difficulty owing to can reduce membrane efficiency or increase corrosivity; 5. use vacuum evaporation removes the free water of hydrogen electric stack inside, and reduce on the film in conjunction with water moisture, because the negative pressure operation also can have a negative impact to the structure of pile, sealing etc.
For intensification and the humidifying technology in the quick startup of hydrogen electric stack, normally used method also has a lot, for example: 1. by the heating cooling circulation liquid, improve the temperature of hydrogen electric stack fast, or by heating fuel and the oxidant that feeds, the heating hydrogen electric stack; 2. used heat and the generation water by the association of pile self generating heats up and humidification; 3. the water that has freezed by the aqueous water or the thawing of heating preservation is fuel and oxidant humidification; 4. be kept at the water that has in the multi-component anti-icing fluid by acquisition, or binding film is selected to be fuel and oxidant humidification through the water that is kept in the low freezing point aqueous solution.
Above technology is for freezing proof technique or start fast certain solution route is provided, but in energy efficiency or unifiedly solve above-mentioned two class technical barriers, and aspect such as environmental suitability and practical application still have gap.
Summary of the invention
The objective of the invention is to be the comprehensive above-mentioned technical barrier that solves, improve the startup response speed of the efficient of system and system and intensification air-humidification method in the antifreeze and quick startup of a kind of hydrogen electric stack of proposing.
In general, hydrogen electric stack has the loop of the circulation circuit and the oxidant of fuel hydrogen, and the oxidant that uses is during as air, and then oxidant is open circuit.With the hydrogen road is example, is to use circulating pump that gas is circulated earlier for the antifreezing treatment of hydrogen electric stack, free water in the purging system, and aqueous vapor is separated in separator; Then or simultaneously, the hydrogen in the circulating system is consumed hydrogen electric stack output electric energy.Electric energy can output to storage battery, or direct heated air heater, or directly is heat energy in pile formation loop consumption.If the loop is in high-pressure system, in the time of need treating that pressure is reduced near ambient pressure, feed inert gas, nitrogen for example, the pressure of control system is a little more than ambient pressure; And, when beginning, just should feed inert gas for low pressure or near the system of ambient pressure.Being reduced to default value at the voltage of exporting begins, the electric energy that transforms can directly form the loop at hydrogen electric stack, in the pile internal consumption, energy with the form release hydrogen of heat, with circulating reflux is hydrogeneous nitrogen, free water on the evaporating film and in conjunction with water is with from hydrogen electric stack with gaseous state.
Gas humidity in the circulation circuit changes in circulation, traps moisture in wet switch.Hydrogen electric stack is after process purges, and gas circuit is switched to wet switch.During beginning, the gas that enters is steam-laden hydrogen, or steam-laden hydrogen nitrogen mixture body.Behind wet switch, the water in the gas is absorbed by the medium in the wet switch, becomes the gas of comparison drying.This gas reenters hydrogen electric stack, absorbs moisture from film, then is discharged in the recyclegas in conjunction with water.
According to the temperature humidity that detects and the comparison of default value, when the gas temperature humidity of turnover hydrogen electric stack reached set point, film promptly was dried to specified degree, possesses non-icing condition under certain low temperature, and then reaches antifreeze purpose.
Aspect antifreeze problem,, much easier relatively to the selection of the wet exchange media of wet switch.The medium that moisture pick-up properties is suitable should not take place freeze to destroy at low temperatures, and evaporation does not take place yet to be shifted, for example, suction pottery, water-absorbing resin or contain the paper of inorganic salts.
Aspect the use of wet switch, be good with a plurality of parallel connections.With 2 be example, when beginning to shut down, earlier only use one of them, when the moisture in the system is most of should wet switch be absorbed after, switch to another wet switch, thereby improve final high and dry ability.After shutdown was finished, the water in the separator was limited the quantity of by water pump and is joined in the wet switch, and the switch that wet absorbs, and stores.According to the water of separator transfer in-migration, the inner total water storage capacity of hydrogen electric stack when shutting down beginning, the exchange media capacity of the wet switch of coupling.
When restarting, system remains the nitrogen system, starts circulating pump, through the bypass of wet switch, then through heating, improves the temperature of hydrogen electric stack.When the hydrogen electric stack temperature reached certain numerical value, gas circuit switched to wet switch, and gas becomes saturated gas, enters hydrogen electric stack, improved the temperature of hydrogen electric stack and the humidity of film.After the outlet humidity of hydrogen electric stack reaches certain set point, connect the gas circuit of hydrogen and oxidant, to the hydrogen humidification, hydrogen electric stack begins to boost, and is the output electric energy then.Simultaneously, nitrogen begins discharging, and wherein the hydrogen that raises gradually through catalysis, is combined into water with oxidant at floss hole.When the density of hydrogen of floss hole reaches certain set point, system carries out the transition to normal operating conditions, and gas circulation and discharging are according to the program control of operate as normal, and the pile start-up routine finishes.
The hydrogen of source of the gas is dry, therefore, hydrogen through wet switch after, the moisture of wet switch is by absorption of hydrogen, the water content of wet exchange media descends, and prolongation in time and continue drying.For single wet switch and a plurality of wet switch in parallel,, all be the degree that can reach bone dry as long as the amounts of hydrogen of passing through is enough.For the hybrid power system that uses hydrogen electric stack and storage battery or capacitor, the design hydrogen electric stack starts the minimum energy output in back, for surpassing the residue store electrical energy sum of the instant consumption of power device and storage battery or capacitor.The wet exchangeability ability of the wet switch of design is the hydrogen that above-mentioned minimum energy output needs, and the exchange media of the wet switch of sufficiently dry reaches certain degree of drying, makes wet switch can be in shutdown procedure hydrogen electric stack be dried to antifreeze requirement.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Symbol description among the figure: 1, sources of hydrogen, 2, source nitrogen, 3, exhaust gas treating device, 4, hydrogen is supplied with transfer valve, and 5, close and cut down I, 6, gas circulator, 7, wet switch inlet transfer valve, 8, wet switch I, 9, wet switch II, 10, transfer valve, 11, wet switch outlet transfer valve, 12, hydrogen electric stack, 13, close and cut down II, 14, shut off valve III, 15, overflow valve, 16, pump, 17, water knockout drum, 18, the hydrogen electric stack hydrogen transfer valve of giving vent to anger.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described.
Hydrogen electric stack has the loop of the circulation circuit and the oxidant of fuel hydrogen, and this example is an example with the hydrogen circuit, and the oxidant circuit similarly.Structure is with reference to Fig. 1, and the meaning of symbol is referring to description of drawings.
When shutting down, be to circulate by 6 pairs of gases of circulating pump earlier for hydrogen electric stack 12, free water in the purging system separates in water knockout drum 17.Then or simultaneously, hydrogen electric stack 12 output electric energy consume the hydrogen in the circulating system.Electric energy can output to storage battery, or direct heated air heater (not shown).
For high-pressure system, when pressure is reduced near ambient pressure, feed inert gas, nitrogen for example, the pressure of control system is a little more than ambient pressure, and nitrogen is provided by source nitrogen 2, enters pipeline and transfer valve 10 by shut off valve I5, enters hydrogen electric stack 12.And, when beginning, just feed inert gas for the system of low pressure or ambient pressure.Being reduced to default value at the voltage of exporting begins, the electric energy that transforms can directly form the loop at hydrogen electric stack 12, in the pile internal consumption, energy with the form release hydrogen of heat, the remaining nitrogen that hydrogen is arranged with circulating reflux, evaporate on the film free water and in conjunction with water, with the water band from hydrogen electric stack 12.
Gas humidity in the circulation circuit is changing traps moisture in wet switch I8 or wet switch II9 in circulation.Hydrogen electric stack 12 is after process purges, and gas circuit is switched to wet switch I8 or wet switch II9.During beginning, the gas that enters is steam-laden hydrogen, or steam-laden hydrogen nitrogen mixture body.Behind wherein wet undersaturated wet switch I8 of exchange media or wet switch II9, the water in the gas is absorbed by wet switch, becomes the gas of comparison drying.This gas reenters hydrogen electric stack 12, absorbs moisture from film, then is discharged in the recyclegas in conjunction with water.
According to the temperature humidity that detects and the comparison of default value, when the gas temperature humidity of turnover hydrogen electric stack 12 reached set point, film promptly was dried to a certain degree, has possessed non-icing condition under certain low temperature, thereby reaches antifreeze purpose.
Aspect antifreeze problem, select the selection of comparison film much easier to the wet exchange media of wet switch.Select the medium of moisture pick-up properties, should make it that evaporation does not take place and shift, do not take place at low temperatures to freeze and destroy, select suction pottery, water-absorbing resin or contain the paper etc. of inorganic salts.
Aspect the use of wet switch, should adopt the structure of a plurality of parallel connections.With 2 units arranged side by side is example, and when beginning to shut down, elder generation uses one of them, after the most of switch that should be wet of the moisture in the system absorbs, uses transfer valve 7,11 to switch to another wet switch, thereby improves final high and dry ability.Has the drainage valve (not shown) in the bottom of water knockout drum, for different operating states, different in other words control programs, aqueous water is under the control of system, by selector valve 13,14,15, use pump 16 optionally water to be injected wet switch I and II or other water consumption devices and be rejected to the external world.In shutdown procedure, after shutdown was finished, the water in the water knockout drum 17 joined among wet switch I and/or the II, and the switch that wet absorbs, and stores.According to the water of water knockout drum 17 transfer in-migrations, the inner total water storage requirements amount of hydrogen electric stack 12 when shutting down beginning, the capacity of the wet switch of coupling.
When restarting, system remains the nitrogen system, starts circulating pump 6, uses transfer valve 10, through the bypass conduit of wet switch, then through heating (not expressing among the figure), improves the temperature of hydrogen electric stack 12.When hydrogen electric stack 12 temperature reach the freezing point when above, use transfer valve 10 that gas circuit is switched to wet switch I or II by pipeline, make gas become saturated gas, enter hydrogen electric stack 12, improve the temperature of hydrogen electric stack 12 and the humidity of film.After the outlet humidity of hydrogen electric stack 12 and temperature reach certain set point, connect the gas circuit of sources of hydrogen 1 (and oxidant), use transfer valve 4, by pipeline, transfer valve 7, hydrogen enters among wet switch I8 and/or the wet switch II9, to the hydrogen humidification, hydrogen electric stack 12 begins to produce voltage, is the output electric energy then.Simultaneously, nitrogen begins discharging by transfer valve 18, and wherein the hydrogen that raises gradually through catalysis, is combined into water with oxidant at exhaust gas treating device 3.Transfer valve 18 can be connected other positions, for example is connected on the water knockout drum 17 in the example 2.Circulating pump 6 is with the gas circulation of system, and nitrogen (and foreign gas of other the non-hydrogen) concentration in the water knockout drum 17 is more than a given data, and transfer valve 18 just is discharged into gasometry in the exhaust gas treating device 3.
When the density of hydrogen of floss hole reaches certain set point, system carries out the transition to normal operating conditions, and gas circulation and discharging are according to the program control of operate as normal, and the pile start-up routine finishes.
The hydrogen of source of the gas is dry, therefore, hydrogen through wet switch after, the moisture of wet switch is by absorption of hydrogen, the water content of wet exchange media descends, and prolongation in time and continue drying.For single wet switch and a plurality of wet switch in parallel,, all be the degree that can reach bone dry as long as the amounts of hydrogen of passing through is enough.For the hybrid power system that uses hydrogen electric stack and storage battery or capacitor, the design hydrogen electric stack starts minimum energy output, is the residue store electrical energy sum of storage battery or capacitor.The wet switching performance of the wet switch of design is, the hydrogen that above-mentioned minimum energy output needs, and the exchange media of the wet switch of sufficiently dry reaches certain degree of drying, makes wet switch can be in shutdown procedure hydrogen electric stack be dried to antifreeze requirement.
Other are similar to example 1.
Claims (4)
1, a kind of antifreezing treatment of hydrogen electric stack, described hydrogen electric stack comprises the loop of the circulation circuit and the oxidant of fuel hydrogen, the circulation circuit of hydrogen is by hydrogen electric stack (12), separator (17), gas circulator (6), wet switch I (8), wet switch II (9), water pump (16), and pipeline, valve and heater are formed, wherein said wet switch I (8) and wet switch II (9) are connected in wet switch inlet transfer valve (7) and wet switch outlet transfer valve (11), wet switch inlet transfer valve (7) is supplied with transfer valve (4) with hydrogen and is connected, wet switch outlet transfer valve (11) is connected with hydrogen electric stack (12), wet switch I (8) and wet switch II (9) are connected to separator (17) by water pump (16), when hydrogen electric stack stopped, the wet exchange media among wet switch I (8) and the wet switch II (9) absorbed the moisture in the gas; When hydrogen electric stack started, wet switch is characterized in that the hydrogen humidification: when shutting down, hydrogen electric stack is used the circulating pump scavenging that circulates, free water in the purging system; Then, hydrogen in the circulating system and oxygen are consumed, make hydrogen electric stack output electric energy, in order to the heated air heater and/or directly form the loop and consume and be heat energy at pile; When pressure is reduced near ambient pressure, feed inert gas, the pressure of control system is a little more than ambient pressure, with the inert gas of circulating reflux, evaporate on the film free water and in conjunction with water; Water in the gas in the circulation circuit is absorbed by wet switch I and/or wet switch II, becomes the gas of comparison drying; This gas reenters hydrogen electric stack, absorbs moisture from film, makes in conjunction with water to be discharged in the recyclegas, when the gas temperature and the humidity that pass in and out hydrogen electric stack reach setting, film promptly is dried to a certain degree, has possessed non-icing condition under regulation low temperature, reaches antifreeze purpose.
2, the antifreezing treatment of hydrogen electric stack according to claim 1 is characterized in that described wet exchange media selects suction pottery, water-absorbing resin, contains a kind of in the paper of inorganic salts.
3, the antifreezing treatment of hydrogen electric stack according to claim 3, it is characterized in that shutting down finish after, the water in the separator (17) joins again and absorbs among wet switch I and/or the wet switch II and store.
4, a kind of processing method that restarts of hydrogen electric stack, wherein said hydrogen electric stack comprises the circulation circuit and the oxidant loop of fuel hydrogen, the circulation circuit of hydrogen is by hydrogen electric stack (12), separator (17), gas circulator (6), wet switch I (8), wet switch II (9), water pump (16) and pipeline, valve and heater are formed, wherein said wet switch I (8) and wet switch II (9) are connected in wet switch inlet transfer valve (7) and wet switch outlet transfer valve (11), wet switch inlet transfer valve (7) is supplied with transfer valve (4) with hydrogen and is connected, wet switch outlet transfer valve (11) is connected with hydrogen electric stack (12), wet switch I (8) and wet switch II (9) are connected to separator (17) by water pump (16), when hydrogen electric stack stopped, the wet exchange media among wet switch I (8) and the wet switch II (9) absorbed the moisture in the gas; When hydrogen electric stack starts, wet switch is to the hydrogen humidification, it is characterized in that: when restarting, start circulating pump, the inert gas of circulating system is through the bypass and the heating of wet switch, improve the temperature of hydrogen electric stack, when the hydrogen electric stack temperature reaches certain numerical value, gas circuit is switched to wet switch, corresponding inert gas becomes saturated gas, enter hydrogen electric stack, after the outlet humidity of hydrogen electric stack reaches certain set point, connect the raw material gas circuit, to the feed hydrogen humidification, hydrogen electric stack voltage raises, and exports electric energy then; Simultaneously, the circulation mist that contains inert gas begins discharging, and when the density of hydrogen of floss hole reaches certain set point, system carries out the transition to normal operating conditions, and the pile start-up routine finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119519A CN100502122C (en) | 2007-07-02 | 2007-07-02 | Method for processing frostbite prevention and quick startup of hydrogen stack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100119519A CN100502122C (en) | 2007-07-02 | 2007-07-02 | Method for processing frostbite prevention and quick startup of hydrogen stack |
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| CN101083331A CN101083331A (en) | 2007-12-05 |
| CN100502122C true CN100502122C (en) | 2009-06-17 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8178252B2 (en) * | 2007-12-14 | 2012-05-15 | GM Global Technology Operations LLC | Method to maximize fuel cell voltage during start-up |
| CN102760895A (en) * | 2011-04-29 | 2012-10-31 | 江苏华源氢能科技发展有限公司 | Tail gas recovering and recycling device of fuel battery |
| CN103953985A (en) * | 2014-04-16 | 2014-07-30 | 沈阳时尚实业有限公司 | Household air conditioning system with fuel cell |
| CN109546181A (en) * | 2018-11-29 | 2019-03-29 | 安徽江淮汽车集团股份有限公司 | A kind of the air control method and system of hydrogen cell automobile |
| CN109860662B (en) * | 2019-04-02 | 2023-11-21 | 武汉海亿新能源科技有限公司 | Low-temperature storage device of hydrogen fuel cell and control method thereof |
| CN110061265B (en) * | 2019-04-18 | 2022-03-22 | 一汽解放汽车有限公司 | Fuel cell reaction gas humidifying device and humidifying method thereof |
| CN110137536B (en) * | 2019-06-05 | 2021-01-22 | 山东大学 | Purging device and purging method for cold-start anode of fuel cell |
| CN110676482B (en) * | 2019-09-09 | 2022-02-08 | 全球能源互联网研究院有限公司 | Fuel cell cogeneration system |
| JP7141384B2 (en) | 2019-11-12 | 2022-09-22 | 本田技研工業株式会社 | FUEL CELL SYSTEM AND METHOD OF CRYSTAL OPERATION OF FUEL CELL SYSTEM |
| CN114335617B (en) * | 2020-09-30 | 2023-10-24 | 北京亿华通科技股份有限公司 | Self-adaptive control method for shutdown purging of fuel cell system |
| CN113431711A (en) * | 2021-06-24 | 2021-09-24 | 顺德职业技术学院 | Negative pressure drainage equipment of hydrogen fuel system |
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