CN200944421Y - Hydrogen fuel cell - Google Patents
Hydrogen fuel cell Download PDFInfo
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- CN200944421Y CN200944421Y CNU2006200990159U CN200620099015U CN200944421Y CN 200944421 Y CN200944421 Y CN 200944421Y CN U2006200990159 U CNU2006200990159 U CN U2006200990159U CN 200620099015 U CN200620099015 U CN 200620099015U CN 200944421 Y CN200944421 Y CN 200944421Y
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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
Abstract
The utility model relates to a hydrogen fuel cell belonging to electrochemical powermaking technical field and being particularly suitable to be used under low pressure such as automobile, which comprises a voltaic pile, a hydrogen storage device, an air device, an air humidification device, a water cooling device and a water-air separating device, wherein, the voltaic pile is in rectangular shape and consists of a plurality of serial cell monomers including a flow field plate, a piece of carbon paper and proton exchanging film with the flow field plate being in rectangular shape; the air humidification device comprises an air-water synthesizer, a water tank, a water pump, a jet nozzle and a heater; on end of the air device reducing valve is communicated with an air reservoir, while the other end with the air-water synthesizer; meanwhile, the air-water synthesizer is communicated with the voltaic pile. The utility model has the advantages of compact structure, low cost and high reliability, thereby not only guaranteeing humidification condition for the proton exchanging film to maintain normal work of the voltaic pile but realizing simple structure of the whole system with higher working reliability.
Description
Technical field
The utility model relates to a kind of hydrogen fuel cell, is a proton exchanging film fuel battery (PEMFC), belongs to the technical field of electrochemistry generating, is particularly suitable for low-pressure state and electrical power is used at 30KW and following occasion.
Background technology
The Proton Exchange Membrane Fuel Cells of prior art (PEMFC), also be called solid polymer (organic membrane) electrolyte fuel battery, being a kind of chemical energy with hydrogen and air is directly changed into the device of electric energy by electrode reaction, and this device is " contrary " reaction unit of water electrolysis in essence.Wherein, electrolyte is a kind of SOLID ORGANIC film, and it generally adopts platinum to make catalyst, and membrane electrode is the core of battery, and the centre is the very thin film of one deck, i.e. proton exchange membrane (PEM).Under the condition of humidification, film can proton conducting, but the non-conducting electronics is hydrionic excellence conductor, and it both provided hydrionic passage as electrolyte, isolates polarization response gas as barrier film again.The both sides of film are gas electrodes, are made up of carbon paper and catalyst, and anode is a hydrogen electrode, and negative electrode is an oxygen electrode.Flow-field plate is generally made by graphite or stainless steel.
Proton Exchange Membrane Fuel Cells is a fuel with hydrogen, is oxidant with the air, promptly is called hydrogen fuel cell.Hydrogen arrives the anode of battery by the air guide channel on the flow-field plate at an end of fuel cell, arrive proton exchange membrane by the diffusion layer on the electrode, under the effect of anode catalyst, be dissociated into 2 hydrogen ions, i.e. protons, and discharge 2 electronics, carry out oxidation reaction at anode.
The anode reaction formula is: H
2=2H
++ 2e.
Meanwhile, air the other end of fuel cell by the air guide channel on the flow-field plate, be the negative electrode that air slot arrives battery, arrive proton exchange membrane by the diffusion layer on the electrode, simultaneously, hydrogen ion passes electrolyte and arrives negative electrode, under the effect of cathod catalyst, oxygen and hydrogen ion and the electronics generation water that reacts.Carry out reduction reaction at negative electrode.
The cathode reaction formula is: 1/2O
2+ 2H
++ 2e=H
2O
Total chemical equation is: H
2+ 1/2O
2=H
2O
Meanwhile, electronics forms electric current under the connection of external circuit, by connecting to load output electric energy.The water that generates is discharged with reaction end gas by electrode.When hydrogen fuel and oxidant were constantly supplied with in the outside, the energy that oxidized produced also just was converted into electric energy and heat energy continuously.
The condition of humidification is that hydrogen and air are all carried out humidification in the existing technology, its shortcoming is complex structure, volume is big, cost is high and outer humidifying device volume is big, noise is big, the area of humidification is inhomogeneous, the effect of humidification is undesirable, pile can not seal fully, and the steady operation over a long time of pile is had certain influence.
Summary of the invention
The purpose of this utility model is: overcome the shortcoming that prior art exists, for adapting to electrical power at the equipment below the 30KW: as using on transport facility such as car, ship and various equipment fixing or movably needs electric energy and the instrument, provide a kind of simple in structure, volume is little, working stability, operational reliability is good, and cost is lower, member is subjected to external force to influence little a kind of interior humidification formula hydrogen fuel cell.
The purpose of this utility model is achieved in that described, a kind of hydrogen fuel cell comprises pile, hydrogen-storing device, air assembly, air humidification device, water-cooling apparatus and moisture separator; Described pile is the rectangle shape, and it is made up of a plurality of battery cell polyphones that comprise that flow-field plate, carbon paper, proton exchange membrane constitute; Described flow-field plate is shaped as rectangle; Described air humidification device is the sprinkling and the steam structure combining of sealing, and it comprises air water synthesizer, little water tank, water pump, jet blower, heater; Pressure-reducing valve one end of air assembly is communicated with air tank, and the other end is communicated with the air water synthesizer, and this air water synthesizer is communicated with pile.
Described flow-field plate is a graphite material, and Qi Sijiao has can make pile make hydrogen, empty G﹠W mutually noninterfere, free-pouring 6 runner holes independently in runner separately under the bar body of sealing fully; A kind of flow-field plate is the uniplanar flow field plate, and promptly one side is dull and stereotyped, and another side has the guiding gutter that is parallel to each other; Also having a kind of flow-field plate is two-sided flow-field plate, and there is the front guiding gutter that is parallel to each other in its front, and reverse side has the reverse side guiding gutter that is parallel to each other.
Described proton exchange membrane is the metal platinum film, and it both provided hydrionic passage as electrolyte, and proton conducting is the hydrogen ion excellence conductor, isolates polarization response gas as barrier film again.
The air water synthesizer of described air humidification device and little water tank, water pump constitute circuit communication, for the air water synthesizer supplies water; Jet blower is installed in the top in the air water synthesizer, and heater is installed in the bottom in the air water synthesizer.
The water of described pile, gas connector have: hydrogen import and export, humid air import and export, cooling water import and export; The radiator of pile and water-cooling apparatus, water tank, water pump constitute the polyphone loop of water; Pile and air water separator and water tank, water pump constitute the another polyphone loop of water.
The operating pressure of the pressure-reducing valve of described air assembly is 0.38MPa to 0.8MPa; The operating pressure of the pressure-reducing valve of hydrogen device is 0.3Mpa to 0.9Mpa.
Each battery cell polyphone is in proper order: the flow-field plate of single face, carbon paper, proton exchange membrane, another carbon paper, two-sided flow-field plate; The voltage of each its generation of battery cell is 0.2V to 0.8V, and the power of generation is 60W to 120W.
Described pile is by forming smaller or equal to 300 battery cell polyphones; The assembly of the battery cell behind some battery cell polyphones, there is the fixed head that is locked at its two ends.
Described pile is made up of 300 battery cell polyphones.
The length of described flow-field plate is 245 millimeters, and wide is 166 millimeters.
Advantage of the present utility model is: (1), compact conformation, cost is low: the rectangle overall dimension of flow-field plate and inner various flow passage structures, made full use of existing raw material, and make the utilance of carbon paper reach 97.6%, thereby reduced cost, higher letter price ratio has been arranged.(2), simple in structure, reliability height: only used the mode of air humidification, saved the complicated humidifying device of a cover of hydrogen humidification.Can guarantee the humidification condition of PEM film like this, make the pile can operate as normal, allow the simple in structure of whole system again, the reliability of work be higher.(3), can produce the hydrogen fuel cell of 30KW and following power, and have best relatively technique effect.
Description of drawings
Fig. 1 is the utility model hydrogen fuel cell system structural representation.
Fig. 2 is the runner hole site schematic diagram (reverse side is the plane) on the guiding gutter in the front of uniplanar flow field plate 1.2 and four jiaos;
Fig. 3 is the runner hole site schematic diagram on the guiding gutter in front of two-sided flow-field plate 1.3 and four jiaos;
Fig. 4 is the runner hole site schematic diagram on the guiding gutter of reverse side of two-sided flow-field plate 1.3 and four jiaos;
Fig. 5 is shape and four jiaos of upper runner hole site schematic diagrames of proton exchange membrane PEM film 1.5;
Fig. 6 is the structural representation of air humidification device;
Fig. 7 is the Facad structure schematic diagram of uniplanar flow field plate 1.2;
Fig. 8 is the Facad structure schematic diagram of two-sided flow-field plate 1.3;
Fig. 9 is the contour structures schematic diagram of pile.
The name of each mark correspondence is called in the accompanying drawing:
The 1-pile, 1.1-fixed head, 1.2-(single face) flow-field plate, 1.21-guiding gutter, 1.3-(two-sided) flow-field plate, 1.31-(front) guiding gutter, (1.32-reverse side) guiding gutter, 1.4-carbon paper, 1.5-proton exchange membrane 1.6-battery cell, the 2-hydrogen-storing device, 2.1-hydrogen gas tank, 2.2-pressure-reducing valve, the 3-air assembly, 3.1-air tank, 3.2-pressure-reducing valve, 4-air humidification device, 4.1 air water synthesizers, the little water tank of 4.2-, 4.3-water pump, 4.4-jet blower, 4.5 heaters, the 5-water-cooling apparatus, 5.1 water tank, 5.2-water pump, 5.3 radiators, the 6-moisture separator, the 6.1-moisture separator.
Embodiment
Shown in accompanying drawing 1-9, a kind of hydrogen fuel cell described in the utility model, it is made up of pile 1, hydrogen-storing device 2, air assembly 3, air humidification device 4, water-cooling apparatus 5 and moisture separator 6; Described pile 1 is the rectangle shape, and it is made up of a plurality of battery cell 1.6 polyphones that comprise that the flow-field plate 1.2 of single face, two-sided flow-field plate 1.3, carbon paper 1.4, proton exchange membrane 1.5 constitute; Described flow-field plate 1.2,1.3 is shaped as rectangle, and length is 245 millimeters, and wide is 166 millimeters, makes full use of section bar; Described air humidification device 4 is the sprinkling and the steam structure combining of sealing, and it is made up of air water synthesizer 4.1, little water tank 4.2, water pump 4.3, jet blower 4.4, heater 4.5; Pressure-reducing valve 3.2 1 ends of air assembly 3 are communicated with air tank 3.1, and the other end is communicated with air water synthesizer 4.1; This air water synthesizer 4.1 is communicated with pile 1.
Described flow-field plate 1.2,1.3 is a graphite material, and Qi Sijiao has can make pile 1 make hydrogen, empty G﹠W mutually noninterfere, free-pouring 6 runner holes independently in runner separately under the bar body of sealing fully; As Fig. 2, shown in Figure 7, flow-field plate 1.2 is the uniplanar flow field plate, and promptly one side is dull and stereotyped, and another side has the guiding gutter 1.21 that is parallel to each other; As Fig. 3, Fig. 4, shown in Figure 8, flow-field plate 1.3 is two-sided flow-field plate, and there is the front guiding gutter 1.31 that is parallel to each other in its front, and reverse side has the reverse side guiding gutter 1.32 that is parallel to each other.
Described proton exchange membrane 1.5 is metal platinum films, and it both provided hydrionic passage as electrolyte, and proton conducting is the hydrogen ion excellence conductor, isolates polarization response gas as barrier film again.
The air water synthesizer 4.1 of described air humidification device 4 and little water tank 4.2, water pump 4.3) constitute circuit communication, for air water synthesizer 4.1 supplies water; Jet blower 4.4 is installed in the top in the air water synthesizer 4.1, and heater 4.5 is installed in the bottom in the air water synthesizer 4.1.
The water of described pile 1, gas connector have: hydrogen import and export, humid air import and export, cooling water import and export; The radiator 5.3 of pile 1 and water-cooling apparatus 5, water tank 5.1, water pump 5.2 constitute the polyphone loop of water; Pile 1 and air water separator 6.1 and water tank 5.1, water pump 5.2 constitute the another polyphone loop of water.
The operating pressure of the pressure-reducing valve 3.2 of described air assembly 3 is 0.3MPa to 0.8MPa; The operating pressure of the pressure-reducing valve 2.2 of hydrogen device 2 is 0.3Mpa to 0.9Mpa; One of them embodiment selects the operating pressure of pressure-reducing valve of pressure-reducing valve 3.2, the hydrogen device 2 of air assembly 3 to be 0.5MPa; In addition, it is another embodiment that both operating pressures can all be elected 0.3Mpa as, is specially adapted to ambient temperature variation occasion greatly; Also have embodiment to be: the operating pressure of the pressure-reducing valve 3.2 of air assembly 3 is 0.8Mpa, and the operating pressure of the pressure-reducing valve 2.2 of hydrogen device 2 is 0.3Mpa to 0.9Mpa.
Described each battery cell 1.6 polyphone are in proper order: the flow-field plate 1.2 of single face, carbon paper 1.4, proton exchange membrane 1.5, another carbon paper 1.4, two-sided flow-field plate 1.3; The voltage of each battery cell 1.6 its generation is 0.2V to 0.8V; One of embodiment: voltage is 0.5V, for universal; Two of embodiment: voltage is 0.2V, is low-pressure type, is applicable to tool equipment; Three of embodiment: voltage is 0.9V, is high-pressure type, is specially adapted to facilities for transport and communication etc.
Described pile 1 is by forming smaller or equal to 300 battery cells, 1.6 polyphones; The assembly of the battery cell behind some battery cell 1.6 polyphones, there is the fixed head 1.1 that is locked at its two ends; It is different embodiment that battery cell 1.6 is elected 300,150,100 as, is suitable for different occasions.
Claims (10)
1, a kind of hydrogen fuel cell comprises pile (1), hydrogen-storing device (2), air assembly (3), air humidification device (4), water-cooling apparatus (5) and moisture separator (6); It is characterized in that described pile (1) is the rectangle shape, it is made up of a plurality of battery cell (1.6) polyphones that comprise that flow-field plate (1.2) (1.3), carbon paper (1.4), proton exchange membrane (1.5) constitute; Described flow-field plate (1.2), (1.3) are shaped as rectangle; Described air humidification device (4) is the sprinkling and the steam structure combining of sealing, and it comprises air water synthesizer (4.1), little water tank (4.2), water pump (4.3), jet blower (4.4), heater (4.5); Pressure-reducing valve (3.2) one ends of air assembly (3) are communicated with air tank (3.1), and the other end is communicated with air water synthesizer (4.1); This air water synthesizer (4.1) is communicated with pile (1).
2, hydrogen fuel cell according to claim 1, it is characterized in that, described flow-field plate (1.2) (1.3) is a graphite material, and Qi Sijiao has can make pile (1) make hydrogen, empty G﹠W mutually noninterfere, free-pouring 6 runner holes independently in runner separately under the bar body of sealing fully; Flow-field plate (1.2) is the uniplanar flow field plate, and promptly one side is dull and stereotyped, and another side has the guiding gutter (1.21) that is parallel to each other; Flow-field plate (1.3) is two-sided flow-field plate, and there is the front guiding gutter (1.31) that is parallel to each other in its front, and reverse side has the reverse side guiding gutter (1.32) that is parallel to each other.
3, hydrogen fuel cell according to claim 1 is characterized in that, described proton exchange membrane (1.5), be the metal platinum film, it both provided hydrionic passage, proton conducting as electrolyte, be the hydrogen ion excellence conductor, isolate polarization response gas as barrier film again.
4, hydrogen fuel cell according to claim 1 is characterized in that, the air water synthesizer (4.1) of described air humidification device (4) and little water tank (4.2), water pump (4.3)) constitute circuit communication, for air water synthesizer (4.1) supplies water; Jet blower (4.4) is installed in the top in the air water synthesizer (4.1), and heater (4.5) is installed in the bottom in the air water synthesizer (4.1).
5, hydrogen fuel cell according to claim 1 is characterized in that, water, the gas connector of described pile (1) have: hydrogen import and export, humid air import and export, cooling water import and export; The radiator (5.3) of pile (1) and water-cooling apparatus (5), water tank (5.1), water pump (5.2) constitute the polyphone loop of water; Pile (1) and air water separator (6.1) and water tank (5.1), water pump (5.2) constitute the another polyphone loop of water.
6, hydrogen fuel cell according to claim 1 is characterized in that, the operating pressure of the pressure-reducing valve (3.2) of described air assembly (3) is 0.3MPa to 0.8MPa; The operating pressure of the pressure-reducing valve (2.2) of hydrogen device (2) is 0.3Mpa to 0.9Mpa.
7, hydrogen fuel cell according to claim 1, it is characterized in that each battery cell (1.6) polyphone is in proper order: the flow-field plate of single face (1.2), carbon paper (1.4), proton exchange membrane (1.5), another carbon paper (1.4), two-sided flow-field plate (1.3); The voltage of its generation of each battery cell (1.6) is 0.2V to 0.8V.
8, hydrogen fuel cell according to claim 1 is characterized in that, described pile (1) is by forming smaller or equal to 300 battery cells (1.6) polyphone; The assembly of the battery cell behind some battery cells (1.6) polyphone, there is the fixed head (1.1) that is locked at its two ends.
According to claim 1 or 8 described hydrogen fuel cells, it is characterized in that 9, described pile (1) is made up of 300 battery cells (1.6) polyphone.
10, hydrogen fuel cell according to claim 1 is characterized in that, the length of described flow-field plate (1.2) (1.3) is 245 millimeters, and wide is 166 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200990159U CN200944421Y (en) | 2006-09-15 | 2006-09-15 | Hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200990159U CN200944421Y (en) | 2006-09-15 | 2006-09-15 | Hydrogen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200944421Y true CN200944421Y (en) | 2007-09-05 |
Family
ID=38719057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200990159U Expired - Fee Related CN200944421Y (en) | 2006-09-15 | 2006-09-15 | Hydrogen fuel cell |
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|---|---|
| CN (1) | CN200944421Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290581A (en) * | 2011-07-26 | 2011-12-21 | 上海交通大学 | Bipolar plate for unitized double-effect regenerative fuel cell |
| CN107287614A (en) * | 2016-04-01 | 2017-10-24 | 安士英 | Hydrogen-oxygen steam manufacture device |
| CN108615915A (en) * | 2018-04-08 | 2018-10-02 | 江苏理工学院 | A kind of hydrogen fuel cell water supply energy supplying system applied to fire fighting truck |
-
2006
- 2006-09-15 CN CNU2006200990159U patent/CN200944421Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290581A (en) * | 2011-07-26 | 2011-12-21 | 上海交通大学 | Bipolar plate for unitized double-effect regenerative fuel cell |
| CN102290581B (en) * | 2011-07-26 | 2013-11-13 | 上海交通大学 | Bipolar plate for unitized double-effect regenerative fuel cell |
| CN107287614A (en) * | 2016-04-01 | 2017-10-24 | 安士英 | Hydrogen-oxygen steam manufacture device |
| CN107287614B (en) * | 2016-04-01 | 2019-04-02 | 安士英 | Hydrogen-oxygen steam manufacturing device |
| CN108615915A (en) * | 2018-04-08 | 2018-10-02 | 江苏理工学院 | A kind of hydrogen fuel cell water supply energy supplying system applied to fire fighting truck |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |