CN101478051A - Fuel cell circulation system, controlling method and closedown method thereof - Google Patents
Fuel cell circulation system, controlling method and closedown method thereof Download PDFInfo
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- CN101478051A CN101478051A CNA2008100016216A CN200810001621A CN101478051A CN 101478051 A CN101478051 A CN 101478051A CN A2008100016216 A CNA2008100016216 A CN A2008100016216A CN 200810001621 A CN200810001621 A CN 200810001621A CN 101478051 A CN101478051 A CN 101478051A
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a fuel cell circulation system and a control method and a switching off method thereof. The fuel cell circulation system comprises a fuel tank, a water tank, a mixing tank, a first pump body, a second pump body, and an on/off valve, wherein the mixing tank is communicated with the fuel tank and the water tank; the first pump body is communicated with the fuel tank, the water tank and the mixing tank to pump the fuel in the fuel tank and generated water in the water tank to the mixing tank to form a mixed fluid; the second pump body is communicated with the fuel cell and the mixing tank for circularly pumping the mixed fluid in the mixing tank to the fuel cell to generate reaction, and returning the reacted mixed fluid back to the mixing tank; and the on/off switch is arranged on the flow passage from the fuel tank to the first pump body to control the on/off state between the fuel tank and the mixing tank. The fuel cell circulation system has the advantages of reduced size, lowered manufacture cost and simplified concentration control process, and can obviate leakage of the recovered water.
Description
Technical field
The present invention relates to a kind of fuel cell circulation system, its control method and closedown method thereof, and be particularly related to a kind of fuel cell circulation system that is easy to miniaturization and can avoids seepage, its control method and closedown method thereof.
Background technology
Utilize fuel cell to produce the energy and have high efficiency, low noise, free of contamination advantage, so it is for can fully satisfying the energy technology of environmental protection demand.Common kinds of fuel cells is proton exchange model fuel cell (PEMFC) and direct methanol fuel cell (DMFC) at present.With the direct methanol fuel cell is example, the fuel of anode (methyl alcohol) produces hydrogen ion and electronics with catalyst reaction, toward cathode terminal, hydrogen ion then penetrates proton exchange membrane and generates water with electronics and oxygen reaction again toward cathode terminal the electronics that anode reaction generates via circuit.Therefore, in the process of direct methanol fuel cell running, the concentration of methanol solution that needs to be supplied to the anode place is controlled in the certain limit of 5%-10% for example, because of concentration if can cause the fuel supply deficiency less than 5%, otherwise if can cause methanol cross-over mea body (MEA) to negative electrode greater than 10%, both all can make fuel cell performance descend.On the other hand,, negative electrode can produce water because being in after the reaction, thus need water reclaimed to mix with high concentration methanol in the fuel bath to reach desired concn, with the service efficiency of increase fuel.
Fig. 1 is a schematic diagram, show the known fuel cell circulation system 100 that comprises fuel concentration control and water recovery member, wherein represent the anode circulation process of fuel cell 102, represent the negative electrode circulation process of fuel cell 102 with the flow direction of dotted line mark with the flow direction of solid line mark.As shown in Figure 1, the required oxygen of fuel cell 102 cathode reactions is introduced by air blast (blower) 104, is brought to tank (water tank) 106 condensations after the water evaporates that the negative electrode place produces and stores.On the other hand, circulating pump (circulationpump) 108 extracts fuel in the mixing channels 112 (mixing tank) to fuel cell 102 anode places, and flows back to mixing channel 112 again through reacted anode fuel.Its anode place can constantly consume methyl alcohol in the operation of fuel cell 102, so the concentration of methanol solution in the mixing channel 112 can descend in time gradually, needs this moment supplementing water and high concentration methanol so that fuel concentration is maintained in the aforesaid preset range.A Known designs according to this, when the concentration of methanol solution in the mixing channel 112 reduces, utilize water pump (waterpump) 114 and measuring pump (dosing pump) 116 extraction tanks 106 and fuel bath 118 to come supplementing water and methyl alcohol respectively, make the fuel concentration of mixing channel 112 return to preset range.
Yet above-mentioned Known designs need be used two different pump housings (water pump 114 and measuring pump 116) for fuel metering concentration and carry out the supply of recycle-water and high concentration methanol, so not only improves manufacturing cost and more can make the bulky of total system and be difficult to miniaturization.
Fig. 2 is the schematic diagram of another known fuel circulatory system 200 of demonstration,
Wherein represent the anode circulation process of fuel cell 202, represent the negative electrode circulation process of fuel cell 202 with the flow direction of dotted line mark with the flow direction of solid line mark.As shown in Figure 2, the required oxygen of fuel cell 202 cathode reactions is introduced by air blast 204, is brought to tank 206 condensations after the water evaporates that the negative electrode place produces and stores.
On the other hand, circulating pump 208 extracts fuel in the mixing channels 212 to fuel cell 202 anode places, and flows back to mixing channel 212 again through reacted anode fuel.When the concentration of methanol solution of mixing channel 212 reduces, utilize measuring pump 216 to extract high concentration methanol in the fuel baths 218 to mixing channel 212, and the recycle-water that tank 206 stores is to flow directly in the mixing channel 212 in gravity drippage mode.
Above-mentioned Known designs is utilized recycle-water in the mode of gravity drippage, though can reach the purpose of omitting a water pump member, but this gravity drippage design must provide height fall to make system's miniaturization difficulty more, and the design that mixing channel 212 is communicated with tank 206 makes the segment anode fuel leak to tank 206 when circulating pump 208 runnings easily.
In addition, cross so that hydrogenesis is stored in the tank for making air communication, tank can be offered a gas flow opening and communicate with the external world.Therefore, if this fuel cell circulation system is designed to a portable system, recycle-water can leak to the external world from the opening of tank after its shutdown decommissions, and causes user's inconvenience.
Summary of the invention
The invention provides a kind of fuel cell circulation system and control method thereof, it can reduce system bulk and manufacturing cost, simplification concentration control procedure and can avoid the recycle-water seepage.
According to one embodiment of the invention, a kind of fuel cell circulation system, supply with in order to control at least one fuel cell fuel concentration and handle this fuel cell reaction after the removal process of generation water, and fuel cell circulation system comprises fuel bath, tank, mixing channel, first and second pump housing and switch valve.The fuel bath storage of fuels; Generation water behind the tank storage of fuels cell reaction; Mixing channel is communicated with fuel bath and tank; First pump housing is communicated with fuel bath, tank and mixing channel, to extract fuel in the fuel bath and the generation water in the tank to mixing channel, to form fluid-mixing; Second pump housing is communicated with fuel cell and mixing channel, reacts with fluid-mixing to the fuel cell that extracts circularly in the mixing channel, and sends reacted fluid-mixing back to mixing channel; And switch valve, be arranged on the runner of fuel bath to the first pump housing, with the connected state between control fuel bath and mixing channel.
Based on the design of above-mentioned each embodiment,, can carry out the fuel concentration adjustment of mixing channel by opening or closing the switch valve that on the runner of fuel bath to the first pump housing, is provided with.Therefore, compare a Known designs water pump capable of reducing using and the water that still can satisfy system reclaims requirement, and can omit height fall between member, acquisition reduction system volume, reduce cost and reduce the effect of power consumption because of not adopting gravity drippage recycle-water mode.Moreover, no matter whether there is this circulatory system of water all can operate in the tank, so can simplify the concentration control flow and must for example not monitor the extra control of mixing channel or tank water level, and be arranged at pump housing both sides, so can avoid the problem of fuel leak to tank because of tank separates with mixing channel.
Another embodiment of the present invention is a kind of fuel cell circulation system control method.At first detect the fuel concentration of the fluid in the mixing channel, when the fuel concentration of the fluid in the mixing channel during less than a preset range, open the pump housing and extract generation water in the tank and the fuel in the fuel bath simultaneously to mixing channel, the fuel concentration of the fluid in mixing channel is closed the pump housing after returning in the preset range.After fuel cell circulation system was received off signal, sealing fuel bath to the runner and the unlatching pump housing extraction tank of mixing channel closed the pump housing again to remove the generation water in the tank after a period of time.
Based on the design of above-mentioned each embodiment, can guarantee that not having moisture after fuel cell circulation system shuts down leaks to the external world via the tank opening.
Other purposes of the present invention and advantage can be further understood from the disclosed technical characterictic of the present invention.For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, embodiment cited below particularly also cooperates appended diagram, is described in detail below.
Description of drawings
Fig. 1 is a schematic diagram, shows the design of a known fuel circulatory system.
Fig. 2 is a schematic diagram, shows the design of another known fuel circulatory system.
Fig. 3 is for showing the schematic diagram according to the fuel cell circulation system of one embodiment of the invention.
Fig. 4 is for showing the schematic diagram according to the fuel cell circulation system of another embodiment of the present invention.
Fig. 5 is the flow chart of explanation according to the fuel cell circulation system control method of one embodiment of the invention.
Fig. 6 A and Fig. 6 B be for showing the schematic diagram according to the fuel cell circulation system of another embodiment of the present invention, and Fig. 6 A and Fig. 6 B show when running well respectively and receive off signal after the runner state of a control.
Fig. 7 A and Fig. 7 B be for showing the fuel cell circulation system schematic diagram according to another embodiment of the present invention, and Fig. 7 A and Fig. 7 B show when running well respectively and receive off signal after the runner state of a control.
Description of reference numerals
10,30,40: fuel cell circulation system
12: fuel cell
14: air blast
16: tank
18: circulating pump
22: mixing channel
24: measuring pump
26: fuel bath
28: switch valve
32: triple valve
100,200: fuel cell circulation system
102,202: fuel cell
104,204: air blast
106,206: tank
108,208: circulating pump
112,212: mixing channel
114: water pump
116,216: measuring pump
118,218: fuel bath
P: confluence
S10-S70: method step
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in the detailed description of the embodiment of following cooperation referenced in schematic, can clearly present.The direction term of being mentioned in following examples, for example: upper and lower, left and right, front or rear etc. only are the directions with reference to additional illustration.Therefore, the direction term of use is to be used for illustrating not to be to be used for limiting the present invention.
Moreover in following description, similar elements is to represent with identical numbering.
Fig. 3 wherein represents the anode circulation process of fuel cell 12 for showing the schematic diagram according to the fuel cell circulation system 10 of one embodiment of the invention with the flow direction of solid line mark, represent the negative electrode circulation process of fuel cell 12 with the flow direction of dotted line mark.Please refer to Fig. 3, the required oxygen of fuel cell 12 cathode reactions is introduced by air blast (blower) 14, is brought to tank (watertank) 16 condensations after the water evaporates that the negative electrode place produces and stores.On the other hand, circulating pump (circulation pump) 18 extracts fuel in the mixing channels 22 (mixing tank) to fuel cell 12 anode places, and flows back to mixing channel 22 again through reacted anode fuel.Its anode place can constantly consume methyl alcohol in the operation of fuel cell 12, so the concentration of methanol solution in the mixing channel 22 can descend in time gradually, so the time need replenish generation water in the tank 16 and the high concentration methanol in the fuel bath 26 is maintained in the preset range with the fuel concentration with mixing channel 22.Measuring pump (dosing pump) 24 and tank 16, fuel bath 26, and mixing channel 22 threes be formed with the runner that communicates with each other, and in an embodiment, fuel bath 26 is formed with the confluence P that converges with tank 16 to the runner of measuring pump 24 to the runner of measuring pump 24.That is, confluence P to the runner section of measuring pump 24 be the repetition section that water and high concentration methanol all can be flowed through.Moreover switch valve (on/offvalve) 28 is arranged at fuel bath 26 to the runner of confluence P.When the circulatory system 10 runnings, switch valve 28 is in closed condition so measuring pump 24 usually can extract generation water in the tank 16 to mixing channel 22, in a single day and open the high concentration methanol that switch valve 28 is mended in the fuel bath 26 when detecting the methanol concentration deficiency in the mixing channel 22, make the methanol concentration of mixing channel 22 return to preset range.In another embodiment, air blast 14 can also use air pumping in addition.
As shown in Figure 4, in another embodiment, fuel bath 26 is not to the runner of measuring pump 24, converge to the runner of measuring pump 24 is separated from one another before entering measuring pump 24 with tank 16, and, can reach the effect that methanol concentration value according to mixing channel 22 determines the high concentration methanol in the postcombustion groove 26 whether equally by switch valve 28 being set in fuel bath 26 to measuring pump on 24 the runner.
Therefore, by the design of above-mentioned each embodiment as can be known,, can carry out the fuel concentration adjustment of mixing channel 22 by opening or close in fuel bath 26 to measuring pump the switch valve 28 that is provided with on 24 the runner.Therefore and the Known designs of Fig. 1 compare a water pump capable of reducing using and the water that still can satisfy system reclaims requirement, obtain the reduction system volume, reduce cost and reduce the effect of power consumption.Moreover, compare with the Known designs of Fig. 2, the design of the foregoing description separates tank 16 and is arranged at measuring pump 24 both sides with mixing channel 22, thus can avoid the problem of fuel leak to tank 22, but and because of not adopting gravity drippage mode so the height fall reduction system volume between must holding member.
In addition, above-mentioned each embodiment design is arranged in parallel tank 16 and fuel bath 26 in the entrance side of measuring pump 24, no matter so whether have this circulatory system of water all can operate in the tank 16, when switch valve 28 is opened, if water supplementing water and high concentration methanol are simultaneously arranged in the tank 16, if anhydrously in the tank 16 can only replenish high concentration methanol, so can simplify the concentration control flow and must for example not monitor the extra control of mixing channel 22 or tank 16 water levels.
The following flow chart of following Fig. 5 illustrates the fuel cell circulation system control method according to one embodiment of the invention.As shown in Figure 5, at first after fuel cell 12 came into operation, the fuel concentration of mixing channel 22 can reduce (step S10) gradually.Whenever utilizing for example fuel concentration of the device detecting mixing channel 22 of densimeter, when the fuel concentration that records is lower than preset value, promptly open measuring pump 24 and simultaneously water and high concentration fuel are sent into mixing channel 22 (step S30, step S40) with switch valve 28, continue to solution concentrations in the mixing channel 22 and reach preset value and close measuring pump 24 and switch valve 28 (step S50, step S60) again, repeat these steps the fuel concentration of mixing channel 22 is maintained in the preset range.
Moreover, in one embodiment, need not open measuring pump 24 even the fuel concentration of mixing channel 22 is not lower than preset value and replenish high concentration fuel with switch valve 28, still can under switch valve 28 closing state, open measuring pump 24 at set intervals the water of tank 16 is sent into mixing channel 22 (step S70), so can keep tank 16 in drying regime, when reducing circulatory system running because of toppling over or other factors cause seepage to arrive the chance in the external world.Certainly, this step and nonessential and visual actual needs carry out, and the generation water in the tank 16 also can only be sent in the mixing channel 22 under the situation that must replenish high concentration fuel simultaneously.
Referring again to Fig. 5, (step S20) enters shutdown mode when fuel cell circulation system 10 is received off signal, this moment switch valve 28 cuts out and with measuring pump 24 open continue to the water of tank 16 drained till, to guarantee that not having moisture after the shutdown leaks to the external world via tank 16 openings.
In one embodiment, after the circulatory system 10 was received off signal, measuring pump 24 was closed after can having been drained with the water of guaranteeing tank 16 in one period scheduled time of extraction under switch valve 28 closed conditions again.
In another embodiment, after the circulatory system 10 is received off signal, measuring pump 24 can be opened running under switch valve 28 closed conditions, whether the solution concentration that continues simultaneously in the monitoring mixing channel 22 is drained with the water storage of judging tank 16, the fuel concentration of mixing channel 22 can descend gradually because if there is water to enter then, the fuel concentration of mixing channel 22 promptly keeps a fixed value after the water of tank 16 is drained, and so decidable water is drained and measuring pump 24 is closed.
In another embodiment, the consumed power that can measure measuring pump 24 change to judge whether the water of tank is drained because measuring pump 24 when drawing water the consumed power during with the absorption air obviously different.
Fig. 6 A and Fig. 6 B are for showing the schematic diagram according to the fuel cell circulation system 30 of another embodiment of the present invention.Fig. 6 A and Fig. 6 B show when running well respectively and receive off signal after the runner state of a control, wherein represent the path that fluid is not flowed through under this state with the overstriking line of discontinuity.The design of present embodiment and embodiment shown in Figure 3 are similar, and difference is that fuel cell circulation system 30 its mixing channels 22 increase the runner that a triple valve 32 and triple valve 32 and 26 formation of fuel bath can communicate with each other to the runner of measuring pump 24.Please refer to Fig. 6 A, system keeps A, the connection of B two ends and A, the disconnected state in C two ends of triple valve 32 under normal operation, and this moment, measuring pump 24 was sent into water and high concentration methanol in the mixing channel 22.After the circulatory system 30 is received off signal, this moment, switch valve 28 cut out and triple valve 32 switches to A, the B two ends are not communicated with and A, C two ends are communicated with state shown in Fig. 6 B, the water that measuring pump 24 like this is sucked by tank 16 can be sent into fuel bath 26 and store, but not be stored in the mixing channel 22, the initial concentration of avoiding taking place the circulatory system 30 mixing channel 22 when next entry into service may low excessively situation.
Fig. 7 A and Fig. 7 B are for showing fuel cell circulation system 40 schematic diagrames according to another embodiment of the present invention.Fig. 7 A and Fig. 7 B show when running well respectively and receive off signal after the runner state of a control, wherein represent the path that fluid is not flowed through under this state with the overstriking line of discontinuity.
The design of this embodiment and embodiment shown in Figure 3 are similar, and difference is that fuel cell circulation system 40 its mixing channels 22 increase the runner that one group of triple valve 32 and triple valve 32 and 12 formation of fuel cell can communicate with each other to the runner of measuring pump 24.Please refer to Fig. 7 A, system keeps A, the connection of B two ends and A, the disconnected state in C two ends under normal operation, and this moment, measuring pump 24 was sent into water and high concentration methanol in the mixing channel 22.After the circulatory system 40 is received off signal, this moment, switch valve 28 cut out and triple valve 32 switches to A, the B two ends are not communicated with and A, C two ends are communicated with state shown in Fig. 7 B, so the water that sucked by tank 16 of measuring pump 24 can be sent in the anode flow channel of fuel cell 12 and store, but not is stored in the mixing channel 22.Owing to if methyl alcohol still residues in fuel cell 12, can cause shorten the useful life of mea body (MEA) during shutdown, but if the whole extractions of the methyl alcohol in the runner can't be kept moisture state again.Therefore, present embodiment design is squeezed into anode flow channel so that remaining methyl alcohol is forced into mixing channel 22 with water when shutdown, the situation that so can avoid causing the mea body to shorten useful life because of methyl alcohol is residual, and the while can keep the moisture state of mea body.
In addition, though previous embodiment all illustrates as working fluid with methyl alcohol, it does not limit.Other are any liquid hydrogen-containing fuel that can be used as fuel-cell fuel of light oil, ethanol or the like for example, all can apply in the fuel cell circulation system of the present invention.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.In addition, arbitrary embodiment of the present invention or claim must not reached the disclosed whole purposes of the present invention or advantage or characteristics.In addition, summary part and title only are the usefulness that is used for assisting the patent document search, are not to be used for limiting interest field of the present invention.
Claims (20)
1. fuel cell circulation system, supply with in order to control at least one fuel cell fuel concentration and handle this fuel cell reaction after the removal process of generation water, this fuel cell circulation system comprises:
Fuel bath stores this fuel;
Tank stores this generation water behind this fuel cell reaction;
Mixing channel is communicated with this fuel bath and this tank;
First pump housing is communicated with this fuel bath, this tank and this mixing channel, to extract this fuel in this fuel bath and this generation water in this tank to this mixing channel, to form a fluid-mixing;
Second pump housing is communicated with this fuel cell and this mixing channel, reacts with this fluid-mixing to this fuel cell that extracts circularly in this mixing channel, and sends reacted this fluid-mixing back to this mixing channel; And
Switch valve is arranged at this fuel bath to the runner of this first pump housing, to control the connected state between this fuel bath and this mixing channel.
2. fuel cell circulation system as claimed in claim 1, wherein the runner of this fuel bath to this runner of this first pump housing and this tank to this first pump housing converges in a confluence, and this switch valve is arranged at this fuel bath to the runner of this confluence.
3. fuel cell circulation system as claimed in claim 1,
Also comprise air blast or air pumping, to carry the required gas of this fuel cell reaction.
4. fuel cell circulation system as claimed in claim 1, wherein this first pump housing is a measuring pump, and this second pump housing is a circulating pump.
5. fuel cell circulation system as claimed in claim 1 also comprises a triple valve, is arranged at this first pump housing to the runner of this mixing channel, and this triple valve is communicated with this fuel bath system.
6. fuel cell circulation system as claimed in claim 1 also comprises a triple valve, be arranged at this first pump housing to the runner of this mixing channel, and this triple valve is communicated with this fuel cell.
7. fuel cell circulation system control method, this fuel cell circulation system comprise fuel bath, the generation water behind the storage of fuels cell reaction of storage of fuels tank, and be communicated with the mixing channel of this fuel bath and this tank, this control method comprises following steps:
Detect the fuel concentration of the fluid in this mixing channel;
When the fuel concentration of the fluid in this mixing channel during less than a preset range, open the pump housing, extracting this generation water in this tank and this fuel in this fuel bath to this mixing channel, the fuel concentration of the fluid in this mixing channel is closed this pump housing after to this preset range; And
After this fuel cell circulation system is received an off signal, seal the runner of this fuel bath, and open this pump housing and extract this tank and close this pump housing after a period of time again, to remove this generation water in this tank to this mixing channel.
8. fuel cell circulation system control method as claimed in claim 7 is wherein opened this pump housing and is removed the fuel concentration that the step of this generations water comprises the fluid in this mixing channel of detecting and whether continue reduction after receiving this off signal.
9. fuel cell circulation system control method as claimed in claim 7 is wherein opened the step that this pump housing is removed water storage after receiving this off signal, comprise the whether step of significant change of this pump housing consumed power of detecting.
10. fuel cell circulation system control method as claimed in claim 7 is wherein opened this pump housing and is removed in the step of this generation water after receiving this off signal, this generation water of this tank is extracted to this mixing channel.
11. fuel cell circulation system control method as claimed in claim 10 is wherein receiving that the step of this this fuel bath of off signal rear enclosed to the runner of this mixing channel is made as closed condition for being arranged at this fuel bath to the switch valve on the runner of this pump housing.
12. fuel cell circulation system control method as claimed in claim 7 is wherein opened this pump housing and removed in the step of this generation water after receiving this off signal, this generation water of this tank is extracted to this fuel bath.
13. fuel cell circulation system control method as claimed in claim 12, wherein receiving that the step of this this fuel bath of off signal rear enclosed to the runner of this mixing channel is made as closed condition for being arranged at this fuel bath to the switch valve on the runner of this pump housing, and will be arranged at this pump housing to the triple valve on the runner of this mixing channel and be communicated with this fuel bath.
14. fuel cell circulation system control method as claimed in claim 7 is wherein opened this pump housing and removed in the step of this generation water after receiving this off signal, this generation water in this tank is extracted to this fuel cell.
15. fuel cell circulation system control method as claimed in claim 14, wherein receiving that the step of this this fuel bath of off signal rear enclosed to the runner of this mixing channel is made as closed condition for being arranged at this fuel bath to the switch valve on the runner of this pump housing, and will be arranged at this pump housing to the triple valve on the runner of this mixing channel and be communicated with this fuel cell.
16. fuel cell circulation system control method as claimed in claim 7 also is included in and receives that the preceding every certain interval of time of off signal seals the runner of this fuel bath to this mixing channel, and opens this pump housing and extract this interior generation water of this tank.
17. the closedown method of a fuel cell circulation system, this fuel cell circulation system comprise fuel bath, the generation water behind the storage of fuels cell reaction of storage of fuels tank, and be communicated with the mixing channel of this fuel bath and this tank, this on-stream fuel cell circulation system of this closedown method is received and is implemented behind the off signal and comprise following steps:
Close second pump housing that extracts the fluid in this mixing channel and be delivered to this fuel cell; And
Seal the runner of this fuel bath, and open first pump housing,, in this tank, do not close this first pump housing behind this generation water of tool to extract this generation water of this tank to this mixing channel.
18. fuel cell circulation system closedown method as claimed in claim 17 wherein extracts in the step of this generation water of this tank opening this first pump housing, this generation water of this tank is extracted to this mixing channel.
19. fuel cell circulation system closedown method as claimed in claim 17 wherein extracts in the step of this generation water of this tank opening this first pump housing, this generation water of this tank is extracted to this fuel bath.
20. fuel cell circulation system closedown method as claimed in claim 17 wherein extracts in the step of this generation water of this tank opening this first pump housing, this generation water of this tank is extracted to this fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100016216A CN101478051A (en) | 2008-01-04 | 2008-01-04 | Fuel cell circulation system, controlling method and closedown method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100016216A CN101478051A (en) | 2008-01-04 | 2008-01-04 | Fuel cell circulation system, controlling method and closedown method thereof |
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| CN101478051A true CN101478051A (en) | 2009-07-08 |
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| CNA2008100016216A Pending CN101478051A (en) | 2008-01-04 | 2008-01-04 | Fuel cell circulation system, controlling method and closedown method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106575778A (en) * | 2014-07-24 | 2017-04-19 | 日产自动车株式会社 | Fuel cell system and fuel cell system control method |
| CN109725656A (en) * | 2019-01-28 | 2019-05-07 | 安庆市泰发能源科技有限公司 | Methanol content self-checking device in methyl tertiary butyl ether(MTBE) |
| CN111916804A (en) * | 2020-07-28 | 2020-11-10 | 上海元城汽车技术有限公司 | System and method for generating methanol-water mixed solution of methanol reforming fuel cell |
-
2008
- 2008-01-04 CN CNA2008100016216A patent/CN101478051A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106575778A (en) * | 2014-07-24 | 2017-04-19 | 日产自动车株式会社 | Fuel cell system and fuel cell system control method |
| CN106575778B (en) * | 2014-07-24 | 2019-05-28 | 日产自动车株式会社 | The control method of fuel cell system and fuel cell system |
| CN109725656A (en) * | 2019-01-28 | 2019-05-07 | 安庆市泰发能源科技有限公司 | Methanol content self-checking device in methyl tertiary butyl ether(MTBE) |
| CN111916804A (en) * | 2020-07-28 | 2020-11-10 | 上海元城汽车技术有限公司 | System and method for generating methanol-water mixed solution of methanol reforming fuel cell |
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