CN106711478A - Heat-storage thermotank for power generation system of proton exchange membrane fuel cell - Google Patents
Heat-storage thermotank for power generation system of proton exchange membrane fuel cell Download PDFInfo
- Publication number
- CN106711478A CN106711478A CN201710106811.3A CN201710106811A CN106711478A CN 106711478 A CN106711478 A CN 106711478A CN 201710106811 A CN201710106811 A CN 201710106811A CN 106711478 A CN106711478 A CN 106711478A
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- CN
- China
- Prior art keywords
- generation system
- power generation
- fuel cell
- exchange membrane
- proton exchange
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04052—Storage of heat in the fuel cell system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a heat-storage thermotank for a power generation system of a proton exchange membrane fuel cell. According to the principle, a phase-change heat storage material having a volume percentage of 20-50 percent is contained in a tank material; when the heat-storage thermotank is used, a pile in the power generation system of the proton exchange membrane fuel cell is put in the thermotank, and is used as a heat source or cold source; when the pile temperature is more than the phase-change temperature, the phase-change material in the thermotank is molten to absorb heat; and when the pile temperature is less than the phase-change temperature, the phase-change material in the tank is solidified to release heat. Therefore, the pile temperature is always constant close to the phase-change temperature. The liquid-solid transformation temperature of the phase-change heat-storage material is set to be 40-70 DEG C. The heat-storage thermotank has the advantages that automatic constant temperature of a pile is realized by adopting the phase-change heat-storage material by starting from the angles of simplifying design, saving energy and improving the work reliability of the power generation system.
Description
Technical field
The present invention relates to fuel cell field, the heat pipe of proton exchange membrane fuel cell power generation system is related in particular to
Reason technical field, is related to a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system.
Background technology
Fuel cell is a kind of TRT that chemical energy is directly changed into electric energy.Proton Exchange Membrane Fuel Cells is usual
Refer to Nafion membrane or class Nafion membrane【Main chain and side chain are constituted with fluoro- carbon key, with sulfonic acid（SO3H）Ionization offer can be moved
Move the polymer film of proton】It is the fuel cell of electrolyte.Proton Exchange Membrane Fuel Cells generally works at room temperature, suitable
Operating temperature range is general at 15-60 DEG C.In proton exchange membrane fuel cell power generation system, with hydrogen as fuel, air is made
For the generating efficiency of the proton exchange film fuel cell electric piling of oxidant donor is 43-58%.Remaining change that oxidized is discharged
Can be converted into heat energy, be shed by the heat abstractor of electricity generation system.When Proton Exchange Membrane Fuel Cells works, pile heat production
Particularly significant with the heat balance that system radiator radiates, it is related to the generating efficiency of fuel cell membrane electrode steady with work
It is qualitative, so as to be related to power output and the life-span of electricity generation system.Too high operating temperature can increase the activity of catalyst, accelerate
The speed of oxidized, causes more heats to produce, and makes temperature control, causes catalyst granules sintering even dielectric film
Melt, decline even system is scrapped rapidly to make Performance data；Too low operating temperature makes the catalytic efficiency of catalyst very low, it is impossible to
Producing enough heat energy makes pile be operated within the scope of suitable temperature, causes pile normally to start.Such as occur freezing existing
As pile may be caused to damage.
In order to maintain suitable operating temperature, Forced water cooling or air cooling measure is generally taken to lower the temperature when pile works, and
Heated up using external auxiliary heater when pile starts, this adds increased the complexity of pile design, and reduce energy
Amount utilization ratio.
The content of the invention
In order to solve the above problems, the present invention proposes that a kind of accumulation of heat for proton exchange membrane fuel cell power generation system is permanent
Incubator, design is simple, easy to use.
Technical scheme：
A kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system, tank material is polymeric matrix and phase transformation
Heat-storing material it is compound.When using accumulation of heat insulating box, the pile in proton exchange membrane fuel cell power generation system is placed in case
It is interior, as thermal source or low-temperature receiver.Compound, the wherein volume shared by phase change heat storage material of the polymeric matrix and phase change heat storage material
It is 20 ~ 50%, remaining is polymeric matrix.
The polymeric matrix refers to general industry common plasticses, generic engineering plastics or special engineering plastics.Institute
It refers to polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC to state general industry common plasticses）, polystyrene (PS), poly- first
Base methyl acrylate (PMMA), polyurethane (PU), phenolic resin (PF), epoxy resin, polyureas etc., but it is not limited to above-mentioned institute
Row；The generic engineering plastics refer to polyamide (PA), polyformaldehyde (POM), makrolon (PC), polyphenylene oxide (PPO/PPE), heat
Plastic resin PBT or PET, acrylonitrile-butadiene-styrene copolymer (ABS), ultra high molecular weight polyethylene
(UHMWPE) etc., but be not limited to above-mentioned listed；The special engineering plastics refer to polysulfones (PSF), polyether sulfone (PES), polyphenyl
Thioether (PPS), polyarylate (PAR), polyamide-imides (PAI), PEI (PEI), polyether-ether-ketone (PEEK), polyamides
Imines (PI), liquid crystal polymer LCP, fluoroplastics etc., but be not limited to above-mentioned listed.
The phase change heat storage material refers to the low molecular compound and its mixture that Liquid-solid Transition temperature is 40-70 DEG C, bag
Include：Natural paraffin wax（57-63℃）, oligomeric Tissuemat E, AEO（AEO）, Sodium acetate trihydrate, the thio sulphur of five water
Sour sodium, acetamide, stearic acid, palmitic acid, palmitic acid, laurate, dipropylene glycol PG, neopentyl glycol NPG, two contracting diethyls
More than glycol EG, trimethylolpropane (TMP), glycerine etc..But it is not limited to above-mentioned listed.
The polymeric matrix and phase change heat storage material it is compound, its mode is：Both directly mix, machine-shaping；Or
Person is first by phase change heat storage material microencapsulation, then mixes with polymeric matrix, machine-shaping.
It is an advantage of the invention that from the angle for simplifying design, energy-conservation, increasing electricity generation system functional reliability, using phase
Change heat storage material realizes the automatic constant-temperature of pile.When pile heat production is more than device radiation speed, phase change heat storage material occurs
Melt, absorb the heat from pile, make temperature constant near transformation temperature, raise stack temperature；When pile heat production is small
When device radiation speed, phase change heat storage material is solidified, and discharges latent heat, and heat compensation is carried out automatically, makes stack temperature still
Maintain near transformation temperature.This phase change heat storage material is made casing by the present invention, pile is sealed and placed in wherein it is possible to realize electricity
The automatic management of heap operating temperature.Method provided by the present invention all is from without other extra thermals source or low-temperature receiver, heat
In itself, simple structure, energy utilization efficiency is high for pile.
Specific embodiment
The present invention discloses a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system, and its principle is in case
Phase change heat storage material containing 20 ~ 50% volume fractions in body material；When using accumulation of heat insulating box, by pem fuel
Pile in battery generating system is placed in case, used as thermal source or low-temperature receiver；When stack temperature is more than phase transition temperature, phase in casing
Become material melts heat absorption；When stack temperature is less than phase transition temperature, phase-change material solidification heat release in casing.So make stack temperature
All the time it is constant near phase transition temperature.The Liquid-solid Transition temperature of phase change heat storage material is set as 40-70 DEG C.
Embodiment 1
Polymeric matrix PE and phase change heat storage material natural paraffin wax are pressed 3:1 volume ratio mixing, is molded into box.Institute of the present invention
The method of offer all is from pile in itself without other extra thermals source or low-temperature receiver, heat, simple structure, energy utilization efficiency
It is high.
Embodiment 2
In mass ratio 2:1 weighs polystyrene（PS）With phase change heat storage material natural paraffin wax, it is added to molten in appropriate dimethylbenzene
Solution, is then spray-dried, and is made the natural paraffin wax microcapsules of PS parcels.2 are pressed again:1 volume ratio is by polymeric matrix PE and PS
The natural paraffin wax microcapsules mixed injection molding of parcel is into box.
In this example, it is polymeric matrix mixing first using PS by natural paraffin wax microencapsulation, is molded into box,
The natural paraffin wax for melting can be prevented to be lost in when insulating box works.
Claims (9)
1. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system, it is characterised in that its tank material is
Polymeric matrix is compound with phase change heat storage material.
2. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 1, it is special
Levy is when using accumulation of heat insulating box, the pile in proton exchange membrane fuel cell power generation system to be placed in case, as thermal source
Or low-temperature receiver.
3. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 1, it is special
Levy be the polymeric matrix and phase change heat storage material it is compound in, wherein volume shared by phase change heat storage material is 20 ~ 50%,
Remaining is polymeric matrix.
4. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 1, it is special
Levy is that the polymeric matrix refers to general industry common plasticses, generic engineering plastics or special engineering plastics.
5. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 4, it is special
Levy is that the general industry common plasticses refer to polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC）, polystyrene
(PS), polymethyl methacrylate (PMMA), polyurethane (PU), phenolic resin (PF), epoxy resin, polyureas.
6. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 4, it is special
Levy be the generic engineering plastics refer to polyamide (PA), polyformaldehyde (POM), makrolon (PC), polyphenylene oxide (PPO/PPE),
Thermoplastic resin PBT or PET, acrylonitrile-butadiene-ethylene copolymer (ABS), ultra high molecular weight polyethylene
(UHMWPE)。
7. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 4, it is special
Levy is that the special engineering plastics refer to polysulfones (PSF), polyether sulfone (PES), polyphenylene sulfide (PPS), polyarylate (PAR), polyamides
Amine-acid imide (PAI), PEI (PEI), polyether-ether-ketone (PEEK), polyimides (PI), liquid crystal polymer LCP, fluorine modeling
Material.
8. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 1, it is special
It is that the phase change heat storage material refers to that Liquid-solid Transition temperature is 40-70 DEG C of low molecular compound and its mixture to levy, including：
Natural paraffin wax（57-63℃）, oligomeric Tissuemat E, AEO（AEO）, Sodium acetate trihydrate, five water thiosulfuric acids
Sodium, acetamide, stearic acid, palmitic acid, palmitic acid, laurate, dipropylene glycol PG, neopentyl glycol NPG, two contracting diethyls two
Alcohol EG, trimethylolpropane (TMP), glycerine are more.
9. a kind of accumulation of heat insulating box for proton exchange membrane fuel cell power generation system according to claim 1, it is special
It is the compound of the polymeric matrix and phase change heat storage material to levy, and its mode is：Both directly mix, and are subsequently processed into type；Or
Person is first by phase change heat storage material microencapsulation, then mixes with polymeric matrix, machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106811.3A CN106711478A (en) | 2017-02-27 | 2017-02-27 | Heat-storage thermotank for power generation system of proton exchange membrane fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106811.3A CN106711478A (en) | 2017-02-27 | 2017-02-27 | Heat-storage thermotank for power generation system of proton exchange membrane fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN106711478A true CN106711478A (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710106811.3A Pending CN106711478A (en) | 2017-02-27 | 2017-02-27 | Heat-storage thermotank for power generation system of proton exchange membrane fuel cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641111A (en) * | 2019-09-23 | 2020-01-03 | 江苏澳盛复合材料科技有限公司 | Efficient heat-insulation carbon fiber composite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905266A (en) * | 2005-07-26 | 2007-01-31 | 比亚迪股份有限公司 | Cell charger box |
| CN104789194A (en) * | 2014-01-20 | 2015-07-22 | 广州贝特缪斯能源科技有限公司 | Energy storage composite material, and preparation method thereof |
-
2017
- 2017-02-27 CN CN201710106811.3A patent/CN106711478A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1905266A (en) * | 2005-07-26 | 2007-01-31 | 比亚迪股份有限公司 | Cell charger box |
| CN104789194A (en) * | 2014-01-20 | 2015-07-22 | 广州贝特缪斯能源科技有限公司 | Energy storage composite material, and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641111A (en) * | 2019-09-23 | 2020-01-03 | 江苏澳盛复合材料科技有限公司 | Efficient heat-insulation carbon fiber composite material |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |