CN100545078C - The small-sized PEMFC hydrogen formation apparatus - Google Patents
The small-sized PEMFC hydrogen formation apparatus Download PDFInfo
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- CN100545078C CN100545078C CNB2007100723424A CN200710072342A CN100545078C CN 100545078 C CN100545078 C CN 100545078C CN B2007100723424 A CNB2007100723424 A CN B2007100723424A CN 200710072342 A CN200710072342 A CN 200710072342A CN 100545078 C CN100545078 C CN 100545078C
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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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The small-sized PEMFC hydrogen formation apparatus, it relates to a kind of hydrogen formation apparatus, lacks external humidification system, hydrogen output function unit complicated problems with what solve that existing small-sized PEMFC exists.Its first baffle plate and elastica are divided into the material stock chamber with material holding chamber, three enclosed areas of air guide chamber and compression chamber, the dropping liquid straight tube passes from the junction of material stock chamber and reaction chamber, escape pipe is arranged on the exterior side wall of depositing air chamber, the two ends of escape pipe are connected with extraneous and air guide chamber respectively, second baffle is arranged on the elastica and is positioned at a side of compression chamber, following water U-shaped flexible pipe passes from the junction of water storage chamber and compression chamber, weep pipe passes from first baffle plate, the water-in of weep pipe is connected with the water outlet of following water U-shaped flexible pipe, the water outlet of weep pipe is positioned at material holding chamber, and airway passes from the junction of air guide chamber and reaction chamber.Of the present invention simple in structure, with low cost, be easy to safeguard, can effectively control the output of hydrogen, be applicable to the pluralities of fuel battery.
Description
Technical field
The present invention relates to a kind of hydrogen formation apparatus.
Background technology
Fuel cell is a kind of efficient, free of contamination power generation assembly, and the chemical energy that it directly will be stored in fuel and the oxygenant is converted into electric energy.When world today's environmental pollution and energy shortage became the matter of utmost importance that hinders Economic development and progress of human society, the development research of fuel cell more and more was subjected to national governments and scientific and technical personnel's attention.And in the fuel cell of many kinds, Proton Exchange Membrane Fuel Cells (PEMFC) is except that having general fuel cell energy transformation efficiency height and advantages of environment protection, also have simultaneously can start fast in room temperature, outstanding features such as no electrolyte loss, water are easily discharged, the life-span long, specific power and specific energy height, be the cleaner power sources that development potentiality is arranged very much.
PEMFC acts as a fuel with hydrogen, small-sized PEMFC wants that cube is little, in light weight, easy to carry, safety coefficient is high, pollution-free, for its device that hydrogen source is provided except that satisfying above-mentioned requirements, also to have the characteristics such as hydrogen speed is fast, output is easy to control, cost is low of producing.For small-sized PEMFC, for simplified apparatus, reduce volume, reduce cost, generally do not have outside humidification system, can only rely on the water that self produces to carry out from humidification, and the water that battery itself generates obviously can't satisfy the requirement of anode humidification, thereby has reduced the performance of PEMFC; Small-sized PEMFC does not generally have the hydrogen output function unit yet in addition, the patent No. provides a kind of method and apparatus that uses aluminium as reaction raw materials and aqueous sodium hydroxide solution prepared in reaction hydrogen for 02104279.9 invention, this method is fairly simple, but the hydrogen output function unit of this device need use multiple components and parts such as liquidometer, pressure controller, liquor pump, pressure transmitter, has increased the manufacturing cost of device and the complicacy of structure greatly.
Summary of the invention
The present invention provides a kind of small-sized PEMFC hydrogen formation apparatus for solving the problem that lacks external humidification system, hydrogen output function unit more complicated that existing small-sized PEMFC exists.The present invention comprises water injection pipe 1, water storage chamber 2, material holding chamber 3, first baffle plate 7, reaction chamber 8, airway 9, second baffle 11, escape pipe 12, elastica 13, following water U-shaped flexible pipe 14, weep pipe 15 and dropping liquid straight tube 16, the bottom outer wall of material holding chamber 3 is fixedlyed connected with the top exterior walls of reaction chamber 8, the top exterior walls of material holding chamber 3 is fixedlyed connected with the bottom outer wall of water storage chamber 2, water injection pipe 1 is arranged on the top exterior walls of water storage chamber 2,1 two ports of water injection pipe are connected with extraneous and water storage chamber 2 respectively, first baffle plate 7 and the elastica 13 that are arranged in the material holding chamber 3 are divided into material stock chamber 4 with material holding chamber 3,6 three enclosed areas of air guide chamber 5 and compression chamber, material stock chamber 4 is between the inner left wall and first baffle plate 7 of material holding chamber 3, air guide chamber 5 is between the right side of material holding chamber 3 inwall and elastica 13, compression chamber 6 is between first baffle plate 7 and elastica 13, dropping liquid straight tube 16 passes from the junction of material stock chamber 4 and reaction chamber 8, the water-in of dropping liquid straight tube 16 is positioned at material stock chamber 4, the water outlet of dropping liquid straight tube 16 is positioned at reaction chamber 8, escape pipe 12 is arranged on the exterior side wall in air guide chamber 5, the two ends of escape pipe 12 are connected with extraneous and air guide chamber 5 respectively, second baffle 11 is arranged on the middle part of elastica 13 and is positioned at a side of compression chamber 6, following water U-shaped flexible pipe 14 passes from the junction of water storage chamber 2 and compression chamber 6, the water-in of following water U-shaped flexible pipe 14 is positioned at water storage chamber 2, the water outlet of following water U-shaped flexible pipe 14 is positioned at compression chamber 6, weep pipe 15 passes from first baffle plate 7, the water-in of weep pipe 15 is connected with the water outlet of following water U-shaped flexible pipe 14, the water outlet of weep pipe 15 is positioned at material holding chamber 3, airway 9 passes from the junction of air guide chamber 5 and reaction chamber 8, the inlet mouth of airway 9 is positioned at reaction chamber 8, and the air outlet of airway 9 is positioned at air guide chamber 5.
Principle of work: the present invention makes hydrogen by aluminium and aqueous sodium hydroxide solution reaction, water is injected in the water storage chamber 2 by water injection pipe 1, then by water U-shaped flexible pipe 14 and weep pipe 15 enter in the material stock chamber 4 down, and the sodium hydrate solid that dissolving is placed in the material stock chamber 4 forms sodium hydroxide solution, sodium hydroxide solution is entered in the reaction chamber 8 by dropping liquid straight tube 16, with the aluminium foil generation chemical reaction that leaves in the reaction chamber, chemical equation is as follows:
2Al+2NaOH→2NaAlO
2+3H
2↑
The hydrogen that produces enters air guide chamber 5 by airway 9, and provide hydrogen for fuel cell by escape pipe 12, carrying out along with reaction, gaseous tension in the air guide chamber 5 is increasing, pressure in air guide chamber 5 is greater than external atmosphere pressure, and fuel cell is can not consume excessive hydrogen the time, the elastica 13 that is installed in here expands to compression chamber 6 gradually, the second baffle 11 that is arranged on the elastica 13 can push down water U-shaped flexible pipe 14 because of the expansion of elastica 13, following water U-shaped flexible pipe 14 under pressure can be gradually near the inner side-wall of compression chamber 6 until the inner side-wall that is adjacent to compression chamber 6, because the width of following water U-shaped flexible pipe 14 is less than the width of second baffle 11, the length of following water U-shaped flexible pipe 14 is greater than the length of second baffle 11, second baffle 11 can make down water U-shaped flexible pipe 14 dam fully, water also no longer drops onto on the sodium hydrate solid in the material stock chamber 4, the minimizing of sodium hydroxide solution has temporarily suppressed the carrying out of hydrogen production reaction, when fuel cell gradually with the hydrogen consumption in the air guide chamber 5, after air guide chamber 5 internal pressures reduce, second baffle 11 breaks away from water U-shaped flexible pipe 14 down gradually, water continues to enter material stock chamber 4 by following water U-shaped flexible pipe 14 and weep pipe 15, and reaction will repeat said process.
The invention effect: of the present invention simple in structure, with low cost, be easy to safeguard, can effectively control the output of hydrogen, be applicable to the pluralities of fuel battery.Contain a certain amount of water vapour in the hydrogen that reaction produces, water vapour can arrive the anode of fuel cell with hydrogen, forms PEMFC from humidification system, can significantly improve the pile performance, and not need to increase in addition humidifying apparatus.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention; Fig. 2 is the A-A sectional view of Fig. 1; Fig. 3 is the one-piece construction synoptic diagram of embodiment five.
Embodiment
Embodiment one: referring to Fig. 1, Fig. 2, present embodiment is by water injection pipe 1, water storage chamber 2, material holding chamber 3, first baffle plate 7, reaction chamber 8, airway 9, second baffle 11, escape pipe 12, elastica 13, following water U-shaped flexible pipe 14, weep pipe 15 and dropping liquid straight tube 16 are formed, the bottom outer wall of material holding chamber 3 is fixedlyed connected with the top exterior walls of reaction chamber 8, the top exterior walls of material holding chamber 3 is fixedlyed connected with the bottom outer wall of water storage chamber 2, water injection pipe 1 is arranged on the top exterior walls of water storage chamber 2,1 two ports of water injection pipe are connected with extraneous and water storage chamber 2 respectively, first baffle plate 7 and the elastica 13 that are arranged in the material holding chamber 3 are divided into material stock chamber 4 with material holding chamber 3,6 three enclosed areas of air guide chamber 5 and compression chamber, material stock chamber 4 is between the inner left wall and first baffle plate 7 of material holding chamber 3, air guide chamber 5 is between the right side of material holding chamber 3 inwall and elastica 13, compression chamber 6 is between first baffle plate 7 and elastica 13, dropping liquid straight tube 16 passes from the junction of material stock chamber 4 and reaction chamber 8, the water-in of dropping liquid straight tube 16 is positioned at material stock chamber 4, the water outlet of dropping liquid straight tube 16 is positioned at reaction chamber 8, escape pipe 12 is arranged on the exterior side wall in air guide chamber 5, the two ends of escape pipe 12 are connected with extraneous and air guide chamber 5 respectively, second baffle 11 is arranged on the middle part of elastica 13 and is positioned at a side of compression chamber 6, following water U-shaped flexible pipe 14 passes from the junction of water storage chamber 2 and compression chamber 6, the water-in of following water U-shaped flexible pipe 14 is positioned at water storage chamber 2, the water outlet of following water U-shaped flexible pipe 14 is positioned at compression chamber 6, weep pipe 15 passes from first baffle plate 7, the water-in of weep pipe 15 is connected with the water outlet of following water U-shaped flexible pipe 14, the water outlet of weep pipe 15 is positioned at material holding chamber 3, airway 9 passes from the junction of air guide chamber 5 and reaction chamber 8, the inlet mouth of airway 9 is positioned at reaction chamber 8, and the air outlet of airway 9 is positioned at air guide chamber 5.
Embodiment two: the interior diameter of the dropping liquid straight tube 16 of present embodiment is 2mm.Other structure is identical with embodiment one.
Embodiment three: referring to Fig. 1, the mouth of pipe face that the difference of present embodiment and embodiment one is dropping liquid straight tube 16 is horizontal by 30 °～60 ° inclination angle.Because the spout diameter of dropping liquid straight tube 16 is less, can occur because the phenomenon that the effect of solution surface tension makes liquid level not there be the mouth of pipe of minim pipette 16 also not drip downwards, therefore the mouth of pipe face of dropping liquid straight tube 16 can make sodium hydroxide solution splash into reaction chamber 8 by dropping liquid straight tube 16 smoothly horizontal by certain angle.
Embodiment four: referring to Fig. 1, the difference of present embodiment and embodiment one is that it has increased a check valve 17, check valve 17 is arranged in the dropping liquid straight tube 16, and the circulating direction of check valve 17 is the water outlet from the water-in of dropping liquid straight tube 16 to dropping liquid straight tube 16.Having hydrogen partial when the pressure in the reaction chamber 8 increases is back in the material holding chamber 3 by dropping liquid straight tube 16, can prevent from the hydrogen backflow and not influence sodium hydroxide solution to flow in the reaction chambers 8 after check valve 17 is set in dropping liquid straight tube 16, improve the efficient of hydrogen formation apparatus by dropping liquid straight tube 16.
Embodiment five: referring to Fig. 3, the difference of present embodiment and embodiment one is that it has increased a dropping liquid straight tube 16, two dropping liquid straight tubes 16 are arranged on the junction of material stock chamber 4 and reaction chamber 8, and lay respectively on two trisection points of material stock chamber 4 bottom inside walls.Sodium hydroxide solution flows into reaction chambers by two dropping liquid straight tubes 16, can be more uniform with reaction chamber 8 in aluminium foil carry out chemical reaction.
Embodiment six: referring to Fig. 1, the difference of present embodiment and embodiment one is to have increased filter foam 10 in airway 9.Hydrogen production reaction also can produce the by product sodium metaaluminate when producing hydrogen, and have a spot of sodium metaaluminate can reach fuel cell with hydrogen by escape pipe anode, the anode sodium metaaluminate that condenses in fuel cell can influence the pile performance even cause the damage of fuel cell, so the filter foam 10 that adds can filter out unnecessary sodium metaaluminate, guarantee the purity of the hydrogen of fueling galvanic anode in airway 9.
Claims (6)
1, a kind of small-sized PEMFC hydrogen formation apparatus, it comprises water injection pipe (1), water storage chamber (2), material holding chamber (3), first baffle plate (7), reaction chamber (8), airway (9), second baffle (11), escape pipe (12), elastica (13), following water U-shaped flexible pipe (14), weep pipe (15) and dropping liquid straight tube (16), the bottom outer wall of material holding chamber (3) is fixedlyed connected with the top exterior walls of reaction chamber (8), the top exterior walls of material holding chamber (3) is fixedlyed connected with the bottom outer wall of water storage chamber (2), water injection pipe (1) is arranged on the top exterior walls of water storage chamber (2), (1) two port of water injection pipe is connected with extraneous and water storage chamber (2) respectively, first baffle plate (7) and the elastica (13) that it is characterized in that being arranged in the material holding chamber (3) are divided into material stock chamber (4) with material holding chamber (3), (6) three enclosed areas of air guide chamber (5) and compression chamber, material stock chamber (4) is positioned between the inner left wall and first baffle plate (7) of material holding chamber (3), air guide chamber (5) is positioned between the right side inwall and elastica (13) of material holding chamber (3), compression chamber (6) is positioned between first baffle plate (7) and the elastica (13), dropping liquid straight tube (16) passes from the junction of material stock chamber (4) and reaction chamber (8), the water-in of dropping liquid straight tube (16) is positioned at material stock chamber (4), the water outlet of dropping liquid straight tube (16) is positioned at reaction chamber (8), escape pipe (12) is arranged on the exterior side wall of air guide chamber (5), the two ends of escape pipe (12) are connected with the external world and air guide chamber (5) respectively, second baffle (11) is arranged on the middle part of elastica (13) and is positioned at a side of compression chamber (6), following water U-shaped flexible pipe (14) passes from the junction of water storage chamber (2) and compression chamber (6), the water-in of following water U-shaped flexible pipe (14) is positioned at water storage chamber (2), the water outlet of following water U-shaped flexible pipe (14) is positioned at compression chamber (6), weep pipe (15) passes from first baffle plate (7), the water-in of weep pipe (15) is connected with the water outlet of following water U-shaped flexible pipe (14), the water outlet of weep pipe (15) is positioned at material holding chamber (3), airway (9) passes from the junction of air guide chamber (5) and reaction chamber (8), the inlet mouth of airway (9) is positioned at reaction chamber (8), and the air outlet of airway (9) is positioned at air guide chamber (5).
2, small-sized PEMFC hydrogen formation apparatus according to claim 1, the interior diameter that it is characterized in that dropping liquid straight tube (16) is 2mm.
3, small-sized PEMFC hydrogen formation apparatus according to claim 1, the mouth of pipe face that it is characterized in that dropping liquid straight tube (16) is horizontal by 30 °～60 ° inclination angle.
4, according to claim 1,2 or 3 described small-sized PEMFC hydrogen formation apparatus, it is characterized in that it also comprises a check valve (17), check valve (17) is arranged in the dropping liquid straight tube (16), and the circulating direction of check valve (17) is the water outlet from the water-in of dropping liquid straight tube (16) to dropping liquid straight tube (16).
5, small-sized PEMFC hydrogen formation apparatus according to claim 1, it is characterized in that it also comprises a dropping liquid straight tube (16), two dropping liquid straight tubes (16) are arranged on the junction of material stock chamber (4) and reaction chamber (8), and lay respectively on two trisection points of material stock chamber (4) bottom inside wall.
6, small-sized PEMFC hydrogen formation apparatus according to claim 1 is characterized in that it also comprises filter foam (10), and filter foam (10) is arranged in the airway (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100723424A CN100545078C (en) | 2007-06-11 | 2007-06-11 | The small-sized PEMFC hydrogen formation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100723424A CN100545078C (en) | 2007-06-11 | 2007-06-11 | The small-sized PEMFC hydrogen formation apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101100283A CN101100283A (en) | 2008-01-09 |
| CN100545078C true CN100545078C (en) | 2009-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100723424A Expired - Fee Related CN100545078C (en) | 2007-06-11 | 2007-06-11 | The small-sized PEMFC hydrogen formation apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102754265B (en) * | 2010-02-08 | 2016-01-27 | 智能能源公司 | Fuel cell cartridge |
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| CN101100283A (en) | 2008-01-09 |
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Granted publication date: 20090930 Termination date: 20100611 |