CN100399615C - Cooling-humidifying device for fuel cell - Google Patents
Cooling-humidifying device for fuel cell Download PDFInfo
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- CN100399615C CN100399615C CNB031300286A CN03130028A CN100399615C CN 100399615 C CN100399615 C CN 100399615C CN B031300286 A CNB031300286 A CN B031300286A CN 03130028 A CN03130028 A CN 03130028A CN 100399615 C CN100399615 C CN 100399615C
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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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Abstract
The present invention relates to a cooling/humidifying device for a fuel cell. A cooling trough is arranged around the outside of the lower part of a generator, and the cooling trough is filled with water. An air supply path is composed of an external air supply pipe and a humidifying air supply pipe, wherein the external air supply pipe is used for supplying air to the inside of the cooling trough to generate air bubbles; the humidifying air supply pipe is used for supplying the generated air bubbles to a cathode of the generator. When the generator generates power, heat generated by the generator is cooled by the water in the cooling trough; by cooling, the water is heated to a certain temperature; at the time, the air supplied to the inside of the cooling trough by the external air supply pipe generate air bubbles in the heated water, and the air bubbles are supplied to the cathode of the generator by the humidifying air supply pipe. By the structure, with no need of an independent humidifier, the generator is cooled, and simultaneously, the air is humidified.
Description
Technical field
The present invention relates to a kind of fuel cell, above-mentioned fuel cell produces by the electrochemical reaction from outside supplied fuel and air.Further relate to a kind of cooling/damping device (COOLING/HUMIDIFYING DEVICE OF FUEL CELL) that can bring the fuel cell of following effect: during cooled electric generator, the water conservancy that is heated to uniform temperature is used on the humidification of air.
Background technology
In general, fuel cell (Fuel Cell) is the device that power conversion that fuel is had becomes electric energy.Above-mentioned fuel cell system generally is that the center is provided with anode (Anode) and negative electrode (Cathode) in its both sides with the polyelectrolyte membrane.In above-mentioned anode (or being called oxidizing electrode or fuel electrodes), produce the electrochemical oxidation of the hydrogen that acts as a fuel; In above-mentioned negative electrode (or claiming reducing electrode or air pole), produce electrochemical reduction as the oxygen of oxidant.At this moment by the moving of the electricity that generates, produce electric energy.
The fuel cell that widely uses has proton pellicle fuel cell (PEMFC, ProtonExchange Membrane Fuel Cell) and boron fuel battery (BFC, Boron Fuel Cell) recently.In proton pellicle fuel cell (PEMFC, Proton Exchange Membrane Fuel Cell), LNG, LPG, CH
3The hydrocarbon gas series of OH, gasoline etc. (CH series) fuel by desulfurization process → conversion reaction → hydrogen refining step, is refined into hydrogen H in reforming unit
2, to fuel cell supply gas hydrogen.Another boron fuel battery (BFC, Boron Fuel Cell), it is with the BH of solid state
4 -(tetrahydro boron anion) makes aqueous solution state, and use directly acts as a fuel.
With reference to the accompanying drawings, the structure chart to BFC in the prior art carries out simple declaration.
Fig. 1 demonstrates the structure chart of fuel cell in the existing technology simply.
As shown in Figure 1, the overall structure of fuel cell 1 is: the side at the generator 2 that produces electricity is provided with tanks 3, and the BH of aqueous solution state is housed in the above-mentioned tanks 3
4 -The anode of above-mentioned tanks 3 and generator 2 is connected with fuel recovery route 5 by supply of fuel route 4; Above-mentioned supply of fuel route 4 is provided with petrolift 6, and above-mentioned petrolift 6 is used for pumping fuel.
In addition, the negative electrode of above-mentioned generator 2 is provided with air supply route 7 and air is discharged route 8, is sequentially set with filter 9, air compressor 10 and humidifier 11 on above-mentioned air supply route 7.Above-mentioned filter 9 is used for filtered air; Above-mentioned air compressor 10 is used for compressed air; Above-mentioned humidifier 11 is used for humidifying air.Wherein, above-mentioned humidifier 11 is connected with water pot 12 by water supply route 13, can be by the adjustment supplementing water of valve 14.
In addition, be provided with cooling fan 15 in a side of above-mentioned generator 2, the heat that above-mentioned generator 2 produced when above-mentioned cooling fan 15 was used to prevent to generate electricity makes above-mentioned generator 2 overheated.
In having the prior art fuel cell of said structure, the operating switch of conducting machine, then above-mentioned petrolift 6 pumping are stored at the BH of the aqueous solution state in the above-mentioned tanks 3
4 -, make the BH of aqueous solution state
4 -Be supplied to the anode of above-mentioned generator 2 by above-mentioned supply of fuel route 4, drive above-mentioned air compressor 10 simultaneously, make air be supplied to the negative electrode of above-mentioned generator 2 by above-mentioned air supply route 7.Wherein, above-mentioned air supplied is at first filtered on above-mentioned filter 9, after suitable humidity, is supplied to the negative electrode of above-mentioned generator 2 at humidification on the above-mentioned humidifier 11 with humidification state.
Be supplied to the BH of the aqueous solution state of above-mentioned generator 2 by said structure
4 -Carry out the electrochemical oxidation of hydrogen respectively at the anode of above-mentioned generator 2 with air, at the oxygenous electrochemical reduction of negative electrode.At this moment pass through the mobile generation electric energy of the electricity of generation, the electric energy current collection of above-mentioned generation uses as the energy on collector plate (not demonstrating in the accompanying drawing).
At this moment reaction equation is BH
4 -+ 2O
2→ 2H
2O+BO
2 -E
0=1.64V.
On the one hand, in said structure, produce heat when generating electricity owing to above-mentioned generator 2, if generator-temperature detection reaches more than 80 ℃, then damage the dielectric film of above-mentioned generator 2,, temperature is remained on below 80 ℃ often so above-mentioned generator 2 need cool off by above-mentioned cooling fan 15.
But the fuel cell 1 with prior art of said structure but has following problem:
That is to say that the fuel cell 1 of above-mentioned prior art is provided with humidifier 11 and generator 2 and cooling fan 15 respectively individually.Above-mentioned humidifier 11 is used for the humidification air supplied; Above-mentioned generator 2 is used for generating; Above-mentioned cooling fan 15 is used to cool off above-mentioned generator 2.Because the fuel cell 1 of prior art has possessed above-mentioned parts, the electric power that the whole size of feasible minimizing machine and each parts of minimizing driving are consumed is restricted.
Summary of the invention
The present invention proposes for the problem of the fuel cell that solves above-mentioned prior art, the purpose of this invention is to provide a kind of cooling/damping device that can bring the fuel cell of following effect: during cooled electric generator, can on independent parts, cool off and humidification simultaneously, the water conservancy of heating is used on the humidification of air.
In order to realize the purpose of the invention described above, fuel cell comprises generator, tanks, supply of fuel route, fuel recovery route, air supply route and air discharge route substantially.Above-mentioned generator generates electricity by the electrochemical reaction of fuel and air; Above-mentioned tanks and above-mentioned generator keep a determining deviation setting to form; The both ends of above-mentioned supply of fuel route are connected with the anode inlet of above-mentioned tanks and generator, are used for giving above-mentioned generator with supply of fuel; The both ends of above-mentioned fuel recovery route are connected with the anode export of above-mentioned tanks and generator, are used to reclaim the fuel after above-mentioned generator reacts; Above-mentioned air supply route is connected the cathode inlet of above-mentioned generator, is used to supply air; Above-mentioned air is discharged the cathode outlet that route is connected above-mentioned generator, is used to discharge reacted air.For fuel cell with said structure, the invention provides a kind of cooling/damping device with fuel cell of following structure: the outer lower portion round above-mentioned generator is provided with cooling bath, in the above-mentioned cooling bath water is housed, above-mentioned water is used to cool off above-mentioned generator.Above-mentioned air supply route is made of extraneous air supply pipe and humidifying air supply pipe.Said external air supply pipe is fed to extraneous air in the above-mentioned cooling bath; Above-mentioned humidifying air supply pipe will be heated to the negative electrode that the bubble that produces in the water of uniform temperature is supplied to above-mentioned generator by said external air supply pipe air supplied when cooling off above-mentioned generator.
In sum, the cooling/damping device of fuel cell of the present invention can bring following effect: the bottom arranged outside round generator has cooling bath, in the above-mentioned cooling bath water is housed.The air supply route is made of extraneous air supply pipe and humidifying air supply pipe.Said external air supply pipe is used to supply air to the inboard of above-mentioned cooling bath, produces bubble; The bubble that above-mentioned humidifying air supply pipe is used for producing is supplied to the negative electrode of above-mentioned generator.When above-mentioned generator generates electricity, the heat that produces from above-mentioned generator cools off by the water in the above-mentioned cooling bath, make water be heated to uniform temperature by above-mentioned cooling, at this moment above-mentioned heated water, produce bubble to the inboard air supplied of above-mentioned cooling bath from said external air supply pipe, and the bubble that produces is supplied to the negative electrode of above-mentioned generator by above-mentioned humidifying air supply pipe.By said structure, do not need independent humidifier, just can finish the cooling of above-mentioned generator and the humidification of air simultaneously.So the minimizing along with parts has reduced manufacturing cost, can make the whole big or small of machine in miniaturization ground.
Description of drawings
Fig. 1 demonstrates the structure chart of existing technology fuel cell simply.
Fig. 2 demonstrates the structure chart that possessing of first embodiment of the invention has the fuel cell of cooling/damping device.
Fig. 3 demonstrates the skiagraph of monocell in the present invention.
Fig. 4 demonstrates the structure chart of the tanks of second embodiment of the invention.
The critical piece description of reference numerals
101: generator 102: tanks
103: supply of fuel route 104: the fuel recovery route
107: air supply route 108: air is discharged route
111: water 112: cooling bath
113: extraneous air supply pipe 114: the humidifying air supply pipe
115: water pot 116: water replenishes route
117: open and close valve 131: draw portion
132: warm water suction pipe 133: blow vent (orifice)
Embodiment
Illustrated embodiment with reference to the accompanying drawings is to the further detailed explanation of cooling/damping device of fuel cell of the present invention with said structure.
Fig. 2 demonstrates the structure chart that possessing of first embodiment of the invention has the fuel cell of cooling/damping device.
As shown in Figure 2, the fuel cell 100 with cooling/damping device of the present invention comprises generator (Generator) 101 and tanks (Fuel Tank) 102 and petrolift 105.Above-mentioned generator (Generator) 101 is by the BH of aqueous solution state
4 -Produce electric energy with the electrochemical reaction of air; Above-mentioned tanks (Fuel Tank) 102 keeps a determining deviation with above-mentioned generator (Generator) 101, in the above-mentioned tanks (Fuel Tank) 102 the aqueous solution state BH that is supplied to above-mentioned generator 101 anodes (Anode) is housed
4 -Above-mentioned petrolift 105 is arranged on the supply of fuel route 103, is used for the fuel of the above-mentioned tanks 102 of pumping.Anode (Anode) inlet of above-mentioned tanks 102 and generator 101 is connected by above-mentioned supply of fuel route 103, supply of fuel can be given the anode (Anode) of above-mentioned generator 101; The anode of above-mentioned generator 101 (Anode) outlet is connected by fuel recovery route 104 with tanks 102, can reclaim reacted fuel.
In addition, be provided with air supply route 107 at the negative electrode (Cathode) of above-mentioned generator 101 inlet, above-mentioned air supply route 107 is used to supply air.Negative electrode (Cathode) outlet at above-mentioned generator 101 is provided with air discharge route 108, and above-mentioned air is discharged route 108 and is used to discharge reaction air afterwards.Above-mentioned air supply route 107 is provided with filter 109 and air compressor 110.Above-mentioned filter 109 is used for filtered air; Above-mentioned air compressor 110 is used for compressed air.
In addition, be provided with cooling bath 112 round the outer lower portion of above-mentioned generator 101, in the above-mentioned cooling bath 112 water 111 be housed, above-mentioned water 111 is used to cool off above-mentioned generator 101.Above-mentioned air supply route 107 is made of extraneous air supply pipe 113 and humidifying air supply pipe 114.Said external air supply pipe 113 is used for to the inboard of above-mentioned cooling bath 112 supply extraneous air; Above-mentioned humidifying air supply pipe 114 is used for producing by said external air supply pipe 113 air supplied in above-mentioned cooling bath 112 bubble is supplied to the negative electrode of above-mentioned generator 101.When cooling off above-mentioned generator 101, the air supply of the bubble state that produces can be given the negative electrode of above-mentioned generator 101 in the water 111 that is heated to uniform temperature by said structure.
In addition, above-mentioned cooling bath 112 replenishes route 116 by water and is connected with the water pot 115 that is provided with separately, makes above-mentioned cooling bath 112 can obtain replenishing of water from water pot 115.Above-mentioned water replenishes route 116 and is provided with switching valve 117, and above-mentioned switching valve 117 is used for regulating switching.
Fig. 3 demonstrates the skiagraph of monocell in the present invention.
As shown in Figure 3, monocell of the present invention is by membrane-electrode combination (MEA:Membrane-ElectrodeAssembly) 124 and separating plate (Separator) 126 and collector plate 127 formations.Above-mentioned membrane-electrode combination (MEA:Membrane-Electrode Assembly) the 124th, being combined by dielectric film 121, the anode 122 that is used for diffusion gas and negative electrode 123 constitutes; Above-mentioned separating plate (Separator) 126 is close to the both sides that are assembled in above-mentioned membrane-electrode combination 124, and forms fuel gas channel and oxygen-containing gas stream 125 on above-mentioned anode 122 and negative electrode 123; Above-mentioned collector plate 127 is arranged on the both sides of above-mentioned separating plate 126, forms the collector electrode of above-mentioned anode 122 and negative electrode 123.
The dielectric film 121 of above-mentioned membrane-electrode combination 124 is the amberplexes that are made of macromolecular material, representational above-mentioned dielectric film 121 has the Nafion film of E.I.Du Pont Company, it plays the effect of the carrier of hydrogen ion, simultaneously, prevents contacting of oxygen and hydrogen; Above-mentioned anode 122 and negative electrode 123 are the supporters that support the catalyst layer of hydrogen-storage alloy, are porous carbon paper (Carbon Paper) or carbon element cloth (Carbon Cloth), are combined in the both sides of above-mentioned dielectric film 121.
Above-mentioned separating plate 126 is made of the carbon plate of densification, and the inboard of above-mentioned separating plate 126 is formed with a plurality of flow passage groove 126a of fluid.
Above-mentioned collector plate 127 has conductivity and corrosion resistance, and titanium (titanium), stainless steel and copper etc. are arranged particularly.
Have in the fuel cell of cooling/damping device possessing of the first embodiment of the invention with said structure, the operating switch of conducting machine then is stored at the BH of the aqueous solution state in the above-mentioned tanks 102
4 -Carry out pumping by above-mentioned petrolift 105, by the BH of the aqueous solution state of pumping
4 -Be supplied to the anode of above-mentioned generator 101 by above-mentioned supply of fuel route 103; Air is supplied to the negative electrode of above-mentioned generator 101 by above-mentioned air supply route 107, the inboard that the cooling bath 112 of above-mentioned water 111 is housed in above-mentioned air supplied at first is fed to by said external air supply pipe 113 produces bubble, makes the bubble of generation be supplied to the negative electrode of above-mentioned generator 101 by above-mentioned humidifying air supply pipe 114 then.
By said structure, be fed to the BH of above-mentioned generator 101 internal water soluble liquid status
4 -Along stream 125 mobile diffusions that are formed on above-mentioned anode 122 lateral surfaces; Flowed along the stream 125 that is formed on above-mentioned negative electrode 123 lateral surfaces by the air of humidification and to spread; When above-mentioned anode 122 carries out electrochemical oxidation reaction, carry out electrochemical reduction reaction at above-mentioned negative electrode 123, by the mobile generation electric energy of electricity, at this moment the electric energy of Chan Shenging concentrates on the above-mentioned collector plate 127, uses as power supply.
Above-mentioned generator 101 aitiogenic reaction equations are
Anode: BH
4 -+ 8OH
-→ BO
2 -+ 6H
2O+8e
-E
0=1.24V
Negative electrode: 2O
2+ 4H
2O+8e
-→ 8OH
-E
0=0.4V
Whole: BH
4 -+ 2O
2→ 2H
2O+BO
2 -E
0=1.64V.
On the one hand, above-mentioned generator 101 generates electricity, then produce heat, the heat of above-mentioned generation cools off by the water 111 in the above-mentioned cooling bath 112, by above-mentioned cooling, make the bubble that produces in the water 111 that is heated to uniform temperature be supplied to the negative electrode 123 of above-mentioned generator 101,, just humidifying air can be supplied to the negative electrode 123 of above-mentioned generator 101 so do not need independent humidifier by above-mentioned humidifying air supply pipe 114.
Fig. 4 demonstrates the structure chart of the tanks of second embodiment of the invention.Basic structure shown in Figure 4 is identical with first embodiment shown in Figure 2.
As shown in Figure 4, be formed with blow vent (orifice) 133 on above-mentioned air supply route 107, above-mentioned blow vent 133 is made of draw portion 131 and warm water suction pipe 132.Above-mentioned draw portion 131 is reduced at the appointed part section diameter; Above-mentioned warm water suction pipe 132 vertically is connected with the downside of above-mentioned draw portion 131, is used to suck warm water.When air by above-mentioned air supply route 107 time through above-mentioned blow vent 133, according to jet pipe (orifice) principle, suck warm water by above-mentioned warm water suction pipe 132, humidifying air, and the air supply of above-mentioned humidification is given the negative electrode of above-mentioned generator 101.
Claims (4)
1. fuel cell, fuel cell comprise that mainly generator, tanks, supply of fuel route, fuel recovery route, air supply route and air discharge route; Above-mentioned generator generates electricity by the electrochemical reaction of fuel and air; Above-mentioned tanks and above-mentioned generator keep a determining deviation setting to form; The both ends of above-mentioned supply of fuel route are connected with the anode inlet of above-mentioned tanks and generator, are used for giving above-mentioned generator with supply of fuel; The both ends of above-mentioned fuel recovery route are connected with the anode export of above-mentioned tanks and generator, are used to reclaim the fuel after above-mentioned generator reacts; Above-mentioned air supply route is connected the cathode inlet of above-mentioned generator, is used to supply air; Above-mentioned air is discharged the cathode outlet that route is connected above-mentioned generator, is used to discharge reacted air; It is characterized in that, also comprise:
Cooling/the damping device of fuel cell, its outer lower portion round above-mentioned generator is provided with cooling bath, in the above-mentioned cooling bath water is housed, and above-mentioned water is used to cool off above-mentioned generator; Above-mentioned air supply route is made of extraneous air supply pipe and humidifying air supply pipe;
Said external air supply pipe is fed to extraneous air in the above-mentioned cooling bath;
It is to be heated to when the above-mentioned generator of cooling in the water of uniform temperature by said external air supply pipe air supplied to produce that above-mentioned humidifying air supply pipe is supplied to the negative electrode of above-mentioned generator, above-mentioned bubble with bubble.
2. fuel cell according to claim 1 is characterized in that:
Fuel is the tetrahydro boron anion of aqueous solution state.
3. fuel cell according to claim 1 is characterized in that:
Be formed with blow vent on the above-mentioned air supply route, above-mentioned blow vent is made of central siphon and warm water suction pipe; Above-mentioned central siphon is reduced at the appointed part section diameter; Above-mentioned warm water suction pipe vertically is connected with the downside of above-mentioned central siphon, is used to suck warm water.
4. fuel cell according to claim 1 is characterized in that:
Above-mentioned cooling bath also includes water pot and water replenishes route and opens and closes valve;
In the above-mentioned water pot water is housed, and above-mentioned water is replenished to above-mentioned cooling bath;
Above-mentioned water replenishes route and is used to supply above-mentioned water pot interior water;
Above-mentioned switching valve is arranged on the above-mentioned water supply route, is used to regulate the water supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031300286A CN100399615C (en) | 2003-06-17 | 2003-06-17 | Cooling-humidifying device for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031300286A CN100399615C (en) | 2003-06-17 | 2003-06-17 | Cooling-humidifying device for fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1567625A CN1567625A (en) | 2005-01-19 |
| CN100399615C true CN100399615C (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031300286A Expired - Fee Related CN100399615C (en) | 2003-06-17 | 2003-06-17 | Cooling-humidifying device for fuel cell |
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|---|---|
| CN (1) | CN100399615C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101683992B1 (en) * | 2014-10-29 | 2016-12-07 | 현대자동차주식회사 | Manifold device of fuel cell stack |
| KR102609395B1 (en) * | 2016-12-27 | 2023-12-05 | 한온시스템 주식회사 | Humidification and cooling device for fuel cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06325780A (en) * | 1993-05-10 | 1994-11-25 | Mitsubishi Heavy Ind Ltd | Fuel cell system |
| JPH0729591A (en) * | 1993-07-16 | 1995-01-31 | Aisin Aw Co Ltd | Solid high polymer fuel cell power generating system |
| US5976722A (en) * | 1995-09-11 | 1999-11-02 | Siemens Aktiengesellschatf | Process for operating a fuel cell installation and fuel cell installation for carrying out the process |
| US6207308B1 (en) * | 1999-04-20 | 2001-03-27 | International Fuel Cells, Llc | Water treatment system for a fuel cell assembly |
| CN1430798A (en) * | 2000-03-23 | 2003-07-16 | 三洋电机株式会社 | Solid polymer fuel cell |
-
2003
- 2003-06-17 CN CNB031300286A patent/CN100399615C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06325780A (en) * | 1993-05-10 | 1994-11-25 | Mitsubishi Heavy Ind Ltd | Fuel cell system |
| JPH0729591A (en) * | 1993-07-16 | 1995-01-31 | Aisin Aw Co Ltd | Solid high polymer fuel cell power generating system |
| US5976722A (en) * | 1995-09-11 | 1999-11-02 | Siemens Aktiengesellschatf | Process for operating a fuel cell installation and fuel cell installation for carrying out the process |
| US6207308B1 (en) * | 1999-04-20 | 2001-03-27 | International Fuel Cells, Llc | Water treatment system for a fuel cell assembly |
| CN1430798A (en) * | 2000-03-23 | 2003-07-16 | 三洋电机株式会社 | Solid polymer fuel cell |
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| CN1567625A (en) | 2005-01-19 |
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